Traditional american family

Best One of the chief social problems afflicting this country Is the breakdown In the traditional family (Kennedy 501). We live in the country where we have all different kinds of families, but the traditional family is the strongest one. We need to fight for the traditional family today because it would make a better life for us and our children. Traditional family Is based on a strong foundation, good values and family traditions. First, every family should build their life on the strong foundation.What is the strong foundation for the family? The best foundation for the good family is found In the Bible. God's plan for the family system Is the best. First, we need to show appreciation every day for each other. Romans 12:10 says, â€Å"Be kindly affectionate one to another with brotherly love; in honor preferring one another. â€Å"Second, we must express our admiration, love, and respect for our family members. Romans 13:7 says, â€Å"Render therefore to all their dues: tribute to whom tribute Is due; custom to whom custom; fear to whom fear: honor to whom honor (The Bible 1009). Hat Is traditional family? The traditional family is made up of a father, mother and a couple of children. Anything other than this ideal is a deviation from the normalcy of values. According to this point of view, the family Is a basic unit of society that serves the purposes of socializing the young, regulating sexual activity, procreation, providing physical care for family members, giving psychological support and emotional security to individuals (Bullock 1). A family is not a collection of individuals who happen to live at the same address.They are people who share an intimate and complex connection with one another, being related by marriage, birth or adoption. Together they form meeting larger and more significant than the contribution of one person. Two people, a man and a woman, locked together by love and lifelong relationship. Furthermore, the situation our nation's f amilies are facing is dire, but there Is hope. When the family returns to the original blueprint that God designed, we will begin to see America strengthened. The family can change the nation in one generation if they will follow God's Word.What is a family today? What challenges does being a member of a family present while traditional family structures change? Every family has to struggle to balance the demands of work and children. Also, the relationship between each spouse can become more delicate and complicated. Now we can see that the traditional family is stronger and the relationship between husband and wife (if they based on the Bible) are also much stronger and almost Impossible to break It. Therefore, If we will not fight for the traditional family, we will have distraction Inside the family and In our society.Leers look what we have with a breakdown of the American traditional family. Here is some statistics. Currently, 27 percent of family households with minors presen t are headed by single parents. Over two million fathers are the primary caregivers of children, marking a 62 percent surge since 1990. More than 50 percent of minors will live In a single parent household at some point (Cotton 1). This should be no surprise when one considers the fact that one third of infants are born to unmarried parents. Single motherhood same period. This is not all.The divorce rate is half the marriage rate, which has a tremendous impact on children. Each year one million of them witness their parents legally separate. Further down the line, these kids have a better than even chance of being in a steamily. One out of 25 children will reside with neither parent (1). More children than ever before are enrolled in various state operated foster care programs. Grandparents increasingly find themselves as parents once again; nearly two and a half million are primary caregivers to related minors. That is our sad reality, but we can change that if we work hard in ours families.In addition, family values are very important in traditional family. Members of the traditional families have physical and emotional support whenever they need it. It is a big benefit for the spouses, their children or even grandparents. Children learn how to build a strong traditional family through observing their parents and by following their life examples. Having strong, well defined family values, helps solidify the foundation for a strong family. Strong and consistent family values are important in building trust and confidence in each family member.What is the some of the values of traditional families that keep family strong? It is very important that each member of the family feel that they are loved, that they belong and that they matter. Each person should be allowed the space and freedom to explore the activities that they enjoy. People are more willing to take chances if they know they have a safe place to come back. Just spending time together as a family is what helps build that sense of belonging. Another big value is respect. Respecting each other is to take feelings, thoughts, needs, and preferences in to account when making decisions.It also means acknowledging and valuing everyone's thoughts, feelings and contributions to the family as a whole. Respect is a very important family value. Respect will extend out of the home and into school, work or other social settings. Honesty -? is the value of any strong relationships. Honesty between mother- daughter, husband-wife, and sister-brother is critical. Without honesty, a deeper connection will not form and certainly won't last. Encourage honesty by practicing understanding and respect when someone tells you of their wrong doings. Another value is forgiveness. Forgiveness is a choice.Forgiving people who did wrong is an important choice to make. In the loving and respectful family, forgiveness should be an easy choice. People need to forgive, so they could be forgiving. Communication is another important value. When people feel they can talk openly about anything – popes, dreams, fears, successes or failures – all without Judgment, it's encouraging and strengthens the bond (Kruger 1). That's why it is so important not only communicate, but also be a good listener. We can see many bad accidents happening around the world, especially lately with all the shootings at the schools.Maybe some of them could be prevented if the kids who were shooting had a strong traditional family with open communications. Almost everyone involved in these tragedies was from broken or divorced families. Next, a good traditional family has good traditions that they have passed from enervation to generation. Why it is so important to have family traditions? We all came from different backgrounds and countries, but it is very important to have and keep traditions of our families. Traditions make a family unique, they draw people important traditions is family dinners.Over th e last 15 years, a large number of scientific studies have confirmed what parents have known intuitively for a long time. Sitting down to a family meal is good for the spirit, the brain, and the body. Recent studies link regular family dinners (5 or more meals a week) with a host of teenage behaviors that parents pray for: lower rates of substance abuse, teen pregnancy, and depression, as well as higher grade-point averages and self-esteem (Fishes 1). Dinner conversation is a great booster of vocabulary for young children, and stories told around the table about parents and grandparents help to build self-esteem and resilience.Having family meals also lower the rates of obesity and eating disorders in children. Family dinners is the time to talk and listen. It is one time a day when the whole family is together and they can talk about their day, problems, and future Lana. Lastly, the breakdown of the traditional family and longer life expectancy means two million in their upper ass will face their old age alone. A report warns us that two million over-ass will face loneliness in their old age because of the breakdown of traditional families.Study predicts one in ten over-ass, will live solitary lives by 2033 (Groves 1). Longer life expectancy, the breakdown of extended families and the growing number of older people living alone is making it harder for older people to sustain strong relationships and connections to community life. Let's summarize hat is the benefits of traditional family. Children raised in a family with the same parents during their growing years have a higher likelihood of having stability in their relationship and emotional bonding.Children that grow up in a single-parent household have higher chances of feeling a sense of loss regarding the absent parent, and miss out on the emotional support that only a father and mother can provide. With both the father and the mother, children get a better sense of what is acceptable and unacceptable, a s far as behavior is concerned. Children get a sense insistence, especially when it also includes closeness with other members of the family such as grandparents, aunts and uncles, and cousins. Children in the traditional family get far more extensive training in life skills.Their mothers usually teach their children relationship skills, like emotional response skills and how to have smooth relations with others, while fathers teach their children handiwork skills and sports skills. With two parents sharing the responsibility of raising the children, it enables one parent to take time to pursue other interests or get a rest while the there parent plays or works with the children. Children that are raised in a traditional family also tend to take on some of the sharing of the responsibilities, such as older siblings taking care of younger siblings.The breakdown of the American traditional family is a serious problem today, but we need to fight for traditional family. First of all, pe ople need to have a strong family relationship based on the strong foundation-?Bible. We need to respect and love our spouses. By doing that, our children would have a strong example to build their strong families. In addition, is it very important to have good family values. People and children who have good families values will also respect and honor people outside their family, at school, work, and in the community.Families need to have a good communication at home and be a good listeners. Having good family traditions, talking, listening, sharing, dreaming, and laughing. It is so important for children to see a good example from their parents about how they treat each other and their own parents. Good traditional family is the healthiest family. Children who have two parents are less likely to get in trouble. They are better students and helpers. Also, elderly people are less likely to be lonely at the end of their life if they been raised and lived in traditional families.

Simplification of Switching Function

EEN1036 Digital Logic Design Chapter 4 part I Simplification of Switching Function 1 Objective s s s s Simplifying logic circuit Minimization using Karnaugh map Using Karnaugh map to obtain simplified SOP and POS expression Five-variable Karnaugh map 2 Simplifying Logic Circuits †¢ †¢ †¢ A A Boolean expression for a logic circuit may be reduced to a simpler form The simplified expression can then be used to implement a circuit equivalent to the original circuit Consider the following example: B C A B C + A BC Y AB C + AB C Y = A B C + A BC + AB C + AB C 3 Continue †¦Checking for common factor: Y = A B C + A BC + AB C + AB C = A C ( B + B ) + AB (C + C ) Reduce the complement pairs to ‘1’ Y = A C ( B + B ) + AB (C + C ) = A C + AB Draw the circuit based on the simplified expression A B C Y 4 Continue †¦ †¢ A Consider another logic circuit: B C Y Y = C( A + B + C ) + A + C Convert to SOP expression: Y = C( A + B + C ) + A + C = AC + B C + AC C hecking for common factor: Y = A(C + C ) + B C = A + BC 5 Continue †¦ †¢ †¢ Simplification of logic circuit algebraically is not always an easy task The following two steps might be useful: i.The original expression is convert into the SOP form by repeated application of DeMorgan’s theorems and multiplication of terms ii. The product terms are then checked for common factors, and factoring is performed wherever possible 6 Continue †¦ †¢ Consider the truth table below: A 0 0 0 0 1 B 0 0 1 1 0 C 0 1 0 1 0 Y 0 0 1 0 0 Minterm Boolean expression: Simplify to yield: Y = A BC + ABC + AB C Y = BC ( A + A) + AB C = BC + AB C 1 0 1 1 1 1 0 1 1 1 1 0 †¢ If minterms are only differed by one bit, they can be simplified, e. g.A BC & ABC 7 Continue †¦ †¢ More example: A 0 0 0 0 1 1 1 1 B 0 0 1 1 0 0 1 1 C 0 1 0 1 0 1 0 1 Y 0 1 1 0 0 1 1 0 Minterm Boolean expression: Y = A B C + A BC + AB C + ABC Minterms 1 and 5, 2 and 6 are only differ by one bit: Y = B C ( A + A) + BC ( A + A) = BC + B C A B C Y 0 0 0 1 0 0 1 0 0 0 1 1 1 1 1 1 0 0 1 1 0 1 0 1 0 1 1 0 1 0 1 0 Minterm Boolean expression: Y = A B C + A BC + AB C + ABC Checking and factoring minterms differed by only by one bit: Y = A C ( B + B ) + AC ( B + B ) = A C + AC = C ( A + A) =C 8 Continue †¦ †¢ †¢ †¢ Though truth table can help us to detect minterms which are only differed by one bit, it is not arranged in a proper way A Karnaugh map (K-map) is a tool, which help us to detect and simplify minterms graphically It is a rearrangement of the truth table where each adjacent cell is only differed by one bit By looping adjacent minterms, it is similar to grouping the minterms with a single bit difference on the truth table 9 Karnaugh Map †¢ †¢ A K-map is just a rearrangement of truth table, so that minterms with a single-bit difference can be detected easily Figure below shows 4 possible arrangement of 3-variable K-map A BC 0 0 01 1 11 3 10 2 C AB 00 0 01 2 11 6 10 4 0 1 4 5 7 6 0 1 1 3 7 5 AB C 0 0 1 1 BC A 0 0 1 4 00 01 2 3 00 01 1 5 11 6 7 11 3 7 10 4 5 10 2 6 10 Continue †¦ †¢ Figure below show two possible arrangement of 4variable K-map CD AB 00 0 01 1 11 3 10 2 AB 00 CD 01 4 11 12 10 8 00 01 4 5 7 6 00 0 01 1 5 13 9 11 12 13 15 14 11 3 7 15 11 10 8 9 11 10 10 2 6 14 10 †¢ Notice that the K-map is labeled so that horizontally and vertically adjacent cells differ only by one bit. 11 Continue †¦ †¢ The K-map for both SOP and POS form are shown below: C D C D CD C D AB AB AB 0 1 3 2C+D C+ D C + D C +D A +B 0 1 3 2 4 5 7 6 A+B A+B A +B 4 5 7 6 12 13 15 14 12 13 15 14 AB 8 9 11 10 8 9 11 10 SOP form (minterm) POS form (maxterm) †¢ †¢ The simplified SOP expression can be obtained by properly combining those adjacent cells which contains ‘1’ This process of combining adjacent minterms is known as 12 looping Continue †¦ †¢ †¢ Each loop of minterms will form a group which can be represented by a product term When a variable appears in both complemented and uncomplemented form within a group, that variable is eliminated from the product term C D C D CD C DAB AB AB AB 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 group 2 group 1: C D( AB + AB ) = AC D group 2: AB(C D + CD ) = ABD Simplified SOP expression: Y = AC D + ABD 13 group 1 Continue †¦ †¢ Consider another K-map: C D C D CD C D AB AB AB AB 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 0 group 1 C D C D CD C D AB AB AB AB 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 14 group 1: ( A B + AB )(C D + CD ) = BD Simplified SOP expression: Y = BD group 1: C D ( A B + A B + AB + AB ) = C D Simplified SOP expression: Y = CD group 1 From truth table to K-map †¢ The content of each cell can be directly plot on the Kmap according to the truth table Consider the following example: 0 1 2 3 4 5 6 7 A 0 0 0 0 1 1 1 1 B C Y 0 0 1 0 1 1 1 0 1 1 1 0 0 0 0 0 1 0 1 0 1 1 1 0 B C B C BC B C A A 1 0 1 1 0 3 1 2 0 4 0 5 0 7 1 6 AB BC Simplif ied SOP expression: Y = A B + BC 15 Continue †¦ †¢ Consider the following 4-variable K-map A 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 B 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 C D Y 0 0 0 0 1 1 1 0 0 1 1 0 0 0 0 0 1 1 1 0 0 1 1 0 0 0 0 0 1 0 1 0 0 1 1 0 0 0 0 0 1 1 1 0 0 1 1 1 C D C D CD C D AB AB AB 0 0 0 1 1 1 0 1 0 0 1 0 3 0 0 0 ACD 2 4 5 7 6 12 13 15 14 AB 0 8 9 11 0 10 ABD Simplified SOP expression: Y = A C D + ABD 16 Continue †¦ †¢ Some guidelines: i. Construct K-map and fill it according to the truth table ii. Only loop cells in the power of 2, i. e. 2 cells, 4 cells, 8 cells and so on iii. Always start by looping the isolated minterms iv. Look for minterms which are adjacent to only one minterm and loop them together v. Proceed on to loop the largest possible groups, from eight minterms (octet), 4 minterms (quad) to 2 minterms (pair) vi.Obtain the product term for each group vii. The sum of these product terms will be the simplified SOP expression 17 Continue †¦ Exam ple: a. Obtain the simplify SOP expression for the truth table: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 B 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 C 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 D 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Y 0 0 1 0 0 1 0 1 0 0 0 1 0 1 0 1 C D C D CD C D AB AB AB AB A B CD 0 0 0 0 0 0 1 1 0 1 0 1 1 3 1 0 0 0 2 4 5 7 6 12 13 15 14 8 9 1 11 10 BD ACD Simplified SOP expression:Y = A B CD + ACD + BD 18 Continue †¦ b. Obtain the simplify SOP expression from the K-map: ACD C D C D CD C D AB AB ABC 0 0 1 0 1 1 1 0 0 1 1 1 ACD 0 1 0 0 A BC AB AB Simplified SOP expression: Y = A C D + A BC + ACD + ABC 19 Continue †¦ c. Obtain the simplify SOP expression from the K-map: alternative solution: C D C D CD C D AB AB AB C D C D CD C D AB A CD 0 0 0 0 AC D 0 0 1 1 1 1 0 1 0 0 0 0 AB D 0 0 0 0 AC D 0 0 1 1 1 1 0 1 0 0 0 0 B CD A CD AB AB AB AB Y = A CD + AC D + AB D Y = A CD + AC D + B CD 20 General Terminology for Logic Minimization †¢ †¢ Here, we define four terms to provide the basis for general function minimization techniques These terms are implicant, prime implicant, essential prime implicant and cover We refer to the K-map below in explaining each term B C B C BC B C A A 1 0 1 1 3 2 1 4 1 5 1 7 6 †¢ †¢ An implicant is a product term that could be used to cover minterms of the function In the K-map above, there are 11 implicants: 5 minterms: {A B C , A BC , AB C , AB C , ABC} 5 group of two adjacent minterms: {AB , AC , A C , B C , BC} 1 group of four adjacent minterms:{C} 21 Continue †¦ †¢ †¢ †¢ A prime implicant is an implicant that is not part of any other mplicant In the K-map, there are two prime implicant: C and AB An essential prime implicant is a prime implicant that covers at least one minterm that is not covered by any other prime implicants Prime implicant AB is essential as it is the only prime implicant that covers minterm 4 Prime implicant C is also essential as it is the onl y prime implicant that covers minterm 1, 3 and 7 A cover of a function is a set of prime implicants for which each minterm of the function is contained in (covered by) at least one prime implicant All essential prime implicants must be used in any cover of a function 22 †¢ †¢ †¢ Continue †¦ †¢ †¢ For the K-map above, the set of implicants { AB , C} represents a cover of the function A minimum cover contains the minimum number of prime implicants which contains all minterm in the function Consider the 4-variable K-map below: C D C D CD C D AB AB AB AB 1 1 Prime implicants †¢ C D C D CD C D AB AB AB 1 1 1 1 1 1 1 1 1 AB AB AB AB C D C D CD C D 1 1 1 1 Minimum cover 1 1 1 1 1 1 1 1 1 1 1 1 AB Essential prime implicants 23 Continue †¦ †¢ Consider another K-map C D C D CD C D AB AB AB AB 1 1 1 1 1 1 1 Prime implicants C D C D CD C D AB 1 1 1 1 1 1 1 1 1 1 AB AB 1 ABEssential prime implicants (minimum cover) 24 Don’t Care Conditions â₠¬ ¢ †¢ †¢ †¢ Some logic circuit will have certain input conditions whereby the output is unspecified This is usually because these input conditions would never occur In other words, we â€Å"don’t care† whether the output is HIGH or LOW Consider the following example: An air conditioning system has two inputs, C and H: – C will be ‘1’ if temperature is too cold (below 15 °C) Otherwise, it will be ‘0’ – H will be ‘1’ if temperature is too hot (above 25 °C) Otherwise, it will be ‘0’ – Output Y will be ‘1’ if temperature is too cold or too hot.If the temperature is acceptable, Y will be ‘0’ 25 Continue †¦ As there are two inputs, there are 4 possible logical conditions: C 0 0 1 1 H 0 1 0 1 Y 0 1 1 X meaning just nice too hot too cold ? Input condition C = 1, H = 1 has no real meaning, as it is impossible to be too hot and too cold at the same time We put a ‘X’ at the output corresponds to this input condition as this input condition cannot occur 26 K-map and Don’t Care Term †¢ Don’t care term, ‘X’ can be treated as ‘0’ or ‘1’ since they cannot occur In K-map, we can choose the don’t care term as ‘0’ or ‘1’ to our advantage A B C D Y 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 1 1 X 0 1 0 0 1 0 1 0 1 X 0 1 1 0 0 0 1 1 1 X 1 0 0 0 0 1 0 0 1 0 1 0 1 0 0 1 0 1 1 X 1 1 0 0 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1 X C D C D CD C D AB AB AB 0 1 1 0 1 X 1 0 X X X X 0 0 1 0 AB Simplified Boolean expression: Y = AB + BC + A D 27 More examples †¦ C D C D CD C D AB AB AB AB C D C D CD C D AB AB AB AB 1 1 X 1 0 1 X 1 0 0 X X 0 1 X X 1 0 X 1 0 0 X 0 0 0 X X 1 X X Y = C D + BC + BD + A C D C D CD C D AB AB AB Y = B D + CD C D C D CD C D AB AB AB 0 0 1 0 1 X 1 1 0 1 X 0 0 0 0 0 1 1 X 0 1 X X 1 0 1 X X 0 0 X X 28 AB AB Y = ABC + C D + BD Y = A C + BD + AD Plo tting function in Canonical Form †¢ Logic function may be expressed in many forms, ranging from simple SOP/POS expression to more complex expressions However, each of them has a unique canonical SOP/POS form If a Boolean expression is expressed in canonical form, it can be readily plotted on the K-map Consider the following Boolean expression: †¢ †¢ †¢ Y = ABC + B CConvert to canonical SOP expression: Y = ABC + B C ( A + A) = ABC + A B C + AB C 29 Continue †¦ Y = ABC + A B C + AB C Plotting the canonical SOP expression onto K-map B C B C BC B C A A 1 1 0 0 BC 0 0 0 1 AC Simplified SOP expression: Y = B C + AC †¢ Consider plotting the following Boolean expression on K-map: Y = C ( A ? B) + A + B 30 Continue †¦ First, convert to SOP expression Y = C ( A ? B) + A + B = C ( AB + A B) + A B = AB C + A BC + A B (C + C ) = AB C + A BC + A B C + A B C B C B C BC B C A A 1 0 AB 1 1 1 0 BC 0 0 AC ?Y = A B + B C + A C 31Plotting K-map from SOP expression â₠¬ ¢ †¢ It is sometime too tedious to convert a Boolean expression to its canonical SOP form Consider the following Boolean expression: Y = AB (C + D )(C + D ) + A + B Convert to SOP form: Y = ( AB C + AB D )(C + D ) + A B = AB C D + AB CD + A B Convert to canonical form: Y = AB C D + AB CD + A B (C + C )( D + D) = AB C D + AB CD + ( A B C + A B C )( D + D) = AB C D + AB CD + A B C D + A B C D + A B CD + A B CD 32 Continue †¦ Y = AB C D + AB CD + A B C D + A B C D + A B CD + A B CD Plot the minterm on K-map: C D C D CD C D AB ABAB 1 0 0 1 1 0 0 0 1 0 0 1 1 0 0 0 AB AB B CD BC D Simplified SOP expression: Y = B C D + B CD + A B 33 Continue †¦ †¢ †¢ †¢ †¢ †¢ Boolean expression can be plotted on to the K-map from its SOP form Product terms with four variables are the minterms and correspond to a single cell on the K-map Product term with three variables corresponds to a loop of two adjacent minterms Product term with only two variables is a quad ( a loop of four adjacent minterms) Product term with a single variable is an octet (a loop of eight adjacent minterms) 1 cell 2 cellsY = A + BC + B CD + ABCD 4 cells 8 cells 34 Continue †¦ †¢ Consider the previous example: Y = AB C D + AB CD + A B minterms 4 cells †¢ †¢ †¢ Both minterms are directly plotted on the K-map The loop which corresponds to A B is drawn on the K-map The cells inside the loops are filled with ‘1’ C D C D CD C D AB AB AB AB 1 0 0 1 1 0 0 0 1 0 0 1 1 0 0 0 AB AB C D A B CD 35 Continue †¦ †¢ Consider the following Boolean expression: Y = ( A + B )( AC + D ) Convert to SOP form: Y = AC + AD + ABC + BD Plot the SOP onto K-map C D C D CD C D AB AB AB AB AC BD C D C D CD C D AB AB ill cells in loops with ‘1' 0 0 0 0 0 1 1 1 0 1 1 1 0 0 1 1 36 ABC AB AB AD Continue †¦ Obtain the simplified SOP expression from K-map: C D C D CD C D AB AB AB AB 0 0 0 0 0 1 1 1 0 1 1 1 0 0 1 1 Simplified SOP expression: Y = AC + AD + BD 37 Continue †¦ Example: Redesign the logic circuit below from its simplified SOP expression: A B C D Z Z = ( B + D )( B + D ) + B(CD + A D ) 38 Continue †¦ Z = ( B + D )( B + D ) + B(CD + A D ) = B + D + B + D + BCD + A BD = BD + B D + BCD + A BD C D C D CD C D AB AB AB 1 1 0 1 0 1 1 0 0 1 1 0 1 1 0 1 AB Z = BD + B D + A B 39 Simplification of Switching Function EEN1036 Digital Logic Design Chapter 4 part I Simplification of Switching Function 1 Objective s s s s Simplifying logic circuit Minimization using Karnaugh map Using Karnaugh map to obtain simplified SOP and POS expression Five-variable Karnaugh map 2 Simplifying Logic Circuits †¢ †¢ †¢ A A Boolean expression for a logic circuit may be reduced to a simpler form The simplified expression can then be used to implement a circuit equivalent to the original circuit Consider the following example: B C A B C + A BC Y AB C + AB C Y = A B C + A BC + AB C + AB C 3 Continue †¦Checking for common factor: Y = A B C + A BC + AB C + AB C = A C ( B + B ) + AB (C + C ) Reduce the complement pairs to ‘1’ Y = A C ( B + B ) + AB (C + C ) = A C + AB Draw the circuit based on the simplified expression A B C Y 4 Continue †¦ †¢ A Consider another logic circuit: B C Y Y = C( A + B + C ) + A + C Convert to SOP expression: Y = C( A + B + C ) + A + C = AC + B C + AC C hecking for common factor: Y = A(C + C ) + B C = A + BC 5 Continue †¦ †¢ †¢ Simplification of logic circuit algebraically is not always an easy task The following two steps might be useful: i.The original expression is convert into the SOP form by repeated application of DeMorgan’s theorems and multiplication of terms ii. The product terms are then checked for common factors, and factoring is performed wherever possible 6 Continue †¦ †¢ Consider the truth table below: A 0 0 0 0 1 B 0 0 1 1 0 C 0 1 0 1 0 Y 0 0 1 0 0 Minterm Boolean expression: Simplify to yield: Y = A BC + ABC + AB C Y = BC ( A + A) + AB C = BC + AB C 1 0 1 1 1 1 0 1 1 1 1 0 †¢ If minterms are only differed by one bit, they can be simplified, e. g.A BC & ABC 7 Continue †¦ †¢ More example: A 0 0 0 0 1 1 1 1 B 0 0 1 1 0 0 1 1 C 0 1 0 1 0 1 0 1 Y 0 1 1 0 0 1 1 0 Minterm Boolean expression: Y = A B C + A BC + AB C + ABC Minterms 1 and 5, 2 and 6 are only differ by one bit: Y = B C ( A + A) + BC ( A + A) = BC + B C A B C Y 0 0 0 1 0 0 1 0 0 0 1 1 1 1 1 1 0 0 1 1 0 1 0 1 0 1 1 0 1 0 1 0 Minterm Boolean expression: Y = A B C + A BC + AB C + ABC Checking and factoring minterms differed by only by one bit: Y = A C ( B + B ) + AC ( B + B ) = A C + AC = C ( A + A) =C 8 Continue †¦ †¢ †¢ †¢ Though truth table can help us to detect minterms which are only differed by one bit, it is not arranged in a proper way A Karnaugh map (K-map) is a tool, which help us to detect and simplify minterms graphically It is a rearrangement of the truth table where each adjacent cell is only differed by one bit By looping adjacent minterms, it is similar to grouping the minterms with a single bit difference on the truth table 9 Karnaugh Map †¢ †¢ A K-map is just a rearrangement of truth table, so that minterms with a single-bit difference can be detected easily Figure below shows 4 possible arrangement of 3-variable K-map A BC 0 0 01 1 11 3 10 2 C AB 00 0 01 2 11 6 10 4 0 1 4 5 7 6 0 1 1 3 7 5 AB C 0 0 1 1 BC A 0 0 1 4 00 01 2 3 00 01 1 5 11 6 7 11 3 7 10 4 5 10 2 6 10 Continue †¦ †¢ Figure below show two possible arrangement of 4variable K-map CD AB 00 0 01 1 11 3 10 2 AB 00 CD 01 4 11 12 10 8 00 01 4 5 7 6 00 0 01 1 5 13 9 11 12 13 15 14 11 3 7 15 11 10 8 9 11 10 10 2 6 14 10 †¢ Notice that the K-map is labeled so that horizontally and vertically adjacent cells differ only by one bit. 11 Continue †¦ †¢ The K-map for both SOP and POS form are shown below: C D C D CD C D AB AB AB 0 1 3 2C+D C+ D C + D C +D A +B 0 1 3 2 4 5 7 6 A+B A+B A +B 4 5 7 6 12 13 15 14 12 13 15 14 AB 8 9 11 10 8 9 11 10 SOP form (minterm) POS form (maxterm) †¢ †¢ The simplified SOP expression can be obtained by properly combining those adjacent cells which contains ‘1’ This process of combining adjacent minterms is known as 12 looping Continue †¦ †¢ †¢ Each loop of minterms will form a group which can be represented by a product term When a variable appears in both complemented and uncomplemented form within a group, that variable is eliminated from the product term C D C D CD C DAB AB AB AB 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 group 2 group 1: C D( AB + AB ) = AC D group 2: AB(C D + CD ) = ABD Simplified SOP expression: Y = AC D + ABD 13 group 1 Continue †¦ †¢ Consider another K-map: C D C D CD C D AB AB AB AB 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 0 group 1 C D C D CD C D AB AB AB AB 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 14 group 1: ( A B + AB )(C D + CD ) = BD Simplified SOP expression: Y = BD group 1: C D ( A B + A B + AB + AB ) = C D Simplified SOP expression: Y = CD group 1 From truth table to K-map †¢ The content of each cell can be directly plot on the Kmap according to the truth table Consider the following example: 0 1 2 3 4 5 6 7 A 0 0 0 0 1 1 1 1 B C Y 0 0 1 0 1 1 1 0 1 1 1 0 0 0 0 0 1 0 1 0 1 1 1 0 B C B C BC B C A A 1 0 1 1 0 3 1 2 0 4 0 5 0 7 1 6 AB BC Simplif ied SOP expression: Y = A B + BC 15 Continue †¦ †¢ Consider the following 4-variable K-map A 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 B 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 C D Y 0 0 0 0 1 1 1 0 0 1 1 0 0 0 0 0 1 1 1 0 0 1 1 0 0 0 0 0 1 0 1 0 0 1 1 0 0 0 0 0 1 1 1 0 0 1 1 1 C D C D CD C D AB AB AB 0 0 0 1 1 1 0 1 0 0 1 0 3 0 0 0 ACD 2 4 5 7 6 12 13 15 14 AB 0 8 9 11 0 10 ABD Simplified SOP expression: Y = A C D + ABD 16 Continue †¦ †¢ Some guidelines: i. Construct K-map and fill it according to the truth table ii. Only loop cells in the power of 2, i. e. 2 cells, 4 cells, 8 cells and so on iii. Always start by looping the isolated minterms iv. Look for minterms which are adjacent to only one minterm and loop them together v. Proceed on to loop the largest possible groups, from eight minterms (octet), 4 minterms (quad) to 2 minterms (pair) vi.Obtain the product term for each group vii. The sum of these product terms will be the simplified SOP expression 17 Continue †¦ Exam ple: a. Obtain the simplify SOP expression for the truth table: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 B 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 C 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 D 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Y 0 0 1 0 0 1 0 1 0 0 0 1 0 1 0 1 C D C D CD C D AB AB AB AB A B CD 0 0 0 0 0 0 1 1 0 1 0 1 1 3 1 0 0 0 2 4 5 7 6 12 13 15 14 8 9 1 11 10 BD ACD Simplified SOP expression:Y = A B CD + ACD + BD 18 Continue †¦ b. Obtain the simplify SOP expression from the K-map: ACD C D C D CD C D AB AB ABC 0 0 1 0 1 1 1 0 0 1 1 1 ACD 0 1 0 0 A BC AB AB Simplified SOP expression: Y = A C D + A BC + ACD + ABC 19 Continue †¦ c. Obtain the simplify SOP expression from the K-map: alternative solution: C D C D CD C D AB AB AB C D C D CD C D AB A CD 0 0 0 0 AC D 0 0 1 1 1 1 0 1 0 0 0 0 AB D 0 0 0 0 AC D 0 0 1 1 1 1 0 1 0 0 0 0 B CD A CD AB AB AB AB Y = A CD + AC D + AB D Y = A CD + AC D + B CD 20 General Terminology for Logic Minimization †¢ †¢ Here, we define four terms to provide the basis for general function minimization techniques These terms are implicant, prime implicant, essential prime implicant and cover We refer to the K-map below in explaining each term B C B C BC B C A A 1 0 1 1 3 2 1 4 1 5 1 7 6 †¢ †¢ An implicant is a product term that could be used to cover minterms of the function In the K-map above, there are 11 implicants: 5 minterms: {A B C , A BC , AB C , AB C , ABC} 5 group of two adjacent minterms: {AB , AC , A C , B C , BC} 1 group of four adjacent minterms:{C} 21 Continue †¦ †¢ †¢ †¢ A prime implicant is an implicant that is not part of any other mplicant In the K-map, there are two prime implicant: C and AB An essential prime implicant is a prime implicant that covers at least one minterm that is not covered by any other prime implicants Prime implicant AB is essential as it is the only prime implicant that covers minterm 4 Prime implicant C is also essential as it is the onl y prime implicant that covers minterm 1, 3 and 7 A cover of a function is a set of prime implicants for which each minterm of the function is contained in (covered by) at least one prime implicant All essential prime implicants must be used in any cover of a function 22 †¢ †¢ †¢ Continue †¦ †¢ †¢ For the K-map above, the set of implicants { AB , C} represents a cover of the function A minimum cover contains the minimum number of prime implicants which contains all minterm in the function Consider the 4-variable K-map below: C D C D CD C D AB AB AB AB 1 1 Prime implicants †¢ C D C D CD C D AB AB AB 1 1 1 1 1 1 1 1 1 AB AB AB AB C D C D CD C D 1 1 1 1 Minimum cover 1 1 1 1 1 1 1 1 1 1 1 1 AB Essential prime implicants 23 Continue †¦ †¢ Consider another K-map C D C D CD C D AB AB AB AB 1 1 1 1 1 1 1 Prime implicants C D C D CD C D AB 1 1 1 1 1 1 1 1 1 1 AB AB 1 ABEssential prime implicants (minimum cover) 24 Don’t Care Conditions â₠¬ ¢ †¢ †¢ †¢ Some logic circuit will have certain input conditions whereby the output is unspecified This is usually because these input conditions would never occur In other words, we â€Å"don’t care† whether the output is HIGH or LOW Consider the following example: An air conditioning system has two inputs, C and H: – C will be ‘1’ if temperature is too cold (below 15 °C) Otherwise, it will be ‘0’ – H will be ‘1’ if temperature is too hot (above 25 °C) Otherwise, it will be ‘0’ – Output Y will be ‘1’ if temperature is too cold or too hot.If the temperature is acceptable, Y will be ‘0’ 25 Continue †¦ As there are two inputs, there are 4 possible logical conditions: C 0 0 1 1 H 0 1 0 1 Y 0 1 1 X meaning just nice too hot too cold ? Input condition C = 1, H = 1 has no real meaning, as it is impossible to be too hot and too cold at the same time We put a ‘X’ at the output corresponds to this input condition as this input condition cannot occur 26 K-map and Don’t Care Term †¢ Don’t care term, ‘X’ can be treated as ‘0’ or ‘1’ since they cannot occur In K-map, we can choose the don’t care term as ‘0’ or ‘1’ to our advantage A B C D Y 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 1 1 X 0 1 0 0 1 0 1 0 1 X 0 1 1 0 0 0 1 1 1 X 1 0 0 0 0 1 0 0 1 0 1 0 1 0 0 1 0 1 1 X 1 1 0 0 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1 X C D C D CD C D AB AB AB 0 1 1 0 1 X 1 0 X X X X 0 0 1 0 AB Simplified Boolean expression: Y = AB + BC + A D 27 More examples †¦ C D C D CD C D AB AB AB AB C D C D CD C D AB AB AB AB 1 1 X 1 0 1 X 1 0 0 X X 0 1 X X 1 0 X 1 0 0 X 0 0 0 X X 1 X X Y = C D + BC + BD + A C D C D CD C D AB AB AB Y = B D + CD C D C D CD C D AB AB AB 0 0 1 0 1 X 1 1 0 1 X 0 0 0 0 0 1 1 X 0 1 X X 1 0 1 X X 0 0 X X 28 AB AB Y = ABC + C D + BD Y = A C + BD + AD Plo tting function in Canonical Form †¢ Logic function may be expressed in many forms, ranging from simple SOP/POS expression to more complex expressions However, each of them has a unique canonical SOP/POS form If a Boolean expression is expressed in canonical form, it can be readily plotted on the K-map Consider the following Boolean expression: †¢ †¢ †¢ Y = ABC + B CConvert to canonical SOP expression: Y = ABC + B C ( A + A) = ABC + A B C + AB C 29 Continue †¦ Y = ABC + A B C + AB C Plotting the canonical SOP expression onto K-map B C B C BC B C A A 1 1 0 0 BC 0 0 0 1 AC Simplified SOP expression: Y = B C + AC †¢ Consider plotting the following Boolean expression on K-map: Y = C ( A ? B) + A + B 30 Continue †¦ First, convert to SOP expression Y = C ( A ? B) + A + B = C ( AB + A B) + A B = AB C + A BC + A B (C + C ) = AB C + A BC + A B C + A B C B C B C BC B C A A 1 0 AB 1 1 1 0 BC 0 0 AC ?Y = A B + B C + A C 31Plotting K-map from SOP expression â₠¬ ¢ †¢ It is sometime too tedious to convert a Boolean expression to its canonical SOP form Consider the following Boolean expression: Y = AB (C + D )(C + D ) + A + B Convert to SOP form: Y = ( AB C + AB D )(C + D ) + A B = AB C D + AB CD + A B Convert to canonical form: Y = AB C D + AB CD + A B (C + C )( D + D) = AB C D + AB CD + ( A B C + A B C )( D + D) = AB C D + AB CD + A B C D + A B C D + A B CD + A B CD 32 Continue †¦ Y = AB C D + AB CD + A B C D + A B C D + A B CD + A B CD Plot the minterm on K-map: C D C D CD C D AB ABAB 1 0 0 1 1 0 0 0 1 0 0 1 1 0 0 0 AB AB B CD BC D Simplified SOP expression: Y = B C D + B CD + A B 33 Continue †¦ †¢ †¢ †¢ †¢ †¢ Boolean expression can be plotted on to the K-map from its SOP form Product terms with four variables are the minterms and correspond to a single cell on the K-map Product term with three variables corresponds to a loop of two adjacent minterms Product term with only two variables is a quad ( a loop of four adjacent minterms) Product term with a single variable is an octet (a loop of eight adjacent minterms) 1 cell 2 cellsY = A + BC + B CD + ABCD 4 cells 8 cells 34 Continue †¦ †¢ Consider the previous example: Y = AB C D + AB CD + A B minterms 4 cells †¢ †¢ †¢ Both minterms are directly plotted on the K-map The loop which corresponds to A B is drawn on the K-map The cells inside the loops are filled with ‘1’ C D C D CD C D AB AB AB AB 1 0 0 1 1 0 0 0 1 0 0 1 1 0 0 0 AB AB C D A B CD 35 Continue †¦ †¢ Consider the following Boolean expression: Y = ( A + B )( AC + D ) Convert to SOP form: Y = AC + AD + ABC + BD Plot the SOP onto K-map C D C D CD C D AB AB AB AB AC BD C D C D CD C D AB AB ill cells in loops with ‘1' 0 0 0 0 0 1 1 1 0 1 1 1 0 0 1 1 36 ABC AB AB AD Continue †¦ Obtain the simplified SOP expression from K-map: C D C D CD C D AB AB AB AB 0 0 0 0 0 1 1 1 0 1 1 1 0 0 1 1 Simplified SOP expression: Y = AC + AD + BD 37 Continue †¦ Example: Redesign the logic circuit below from its simplified SOP expression: A B C D Z Z = ( B + D )( B + D ) + B(CD + A D ) 38 Continue †¦ Z = ( B + D )( B + D ) + B(CD + A D ) = B + D + B + D + BCD + A BD = BD + B D + BCD + A BD C D C D CD C D AB AB AB 1 1 0 1 0 1 1 0 0 1 1 0 1 1 0 1 AB Z = BD + B D + A B 39

Perceptions of African American Women Essay

I am taking some classes that will eventually qualify me to major in Astro – Physics, or Chemical engineering, I also want to work with NASA and train as an astronaut. It was amazing to know that Dr. Mae C. Jemison who happens to be the youngest of three children born to a middle class African American family, Charlie Jemison, a maintenance worker and his wife, Dorothy, a teacher. Dr. Mae C. Jemison was the first black woman astronaut to be in space in an era filled with segregation and racism, she is a Chemical engineer, scientist, physician, teacher and astronaut, she has a wide range of experience in technology, engineering, and medical research. In addition to her extensive background in science, she is well-versed in African and African-American Studies, speaks fluent Russian, Japanese, and Swahili, as well as English and is trained in dance and choreography. Dr. Mae C. Jamison was an inspiration to me, and probably to many African American women. She was full of resilience and determination especially to have reached and achieved success in an unusual field of endeavor for many African American women, I applaud her determination to make a difference among the African American women and blacks in Diaspora. After graduating from Morgan Park High School in 1973 at the age of 16, Dr. Mae Jemison earned a BS in Chemical Engineering from Stanford University, while also fulfilling the requirements for a BA in African-American Studies. After earning these degrees in 1977, she attended Cornell University and received a Doctor of Medicine degree in 1981. During medical school she traveled to Cuba, Kenya and Thailand, providing primary medical care to people living there. This is an indication of her humanitarian efforts and eagerness to reach out to the less privileged population. Having a desire to do more with her life, she enrolled in graduate classes in engineering and applied to NASA for admission to the astronaut program. She was turned down on her first application, maybe because she is a black woman, but she persevered and in 1987 was accepted on her second application. She became one of the fifteen candidates accepted from over 2,000 applicants. When Dr. Mae Jemison successfully completed her astronaut training program in August 1988, she became the fifth black astronaut and the first black female astronaut in NASA history. In completing her first space flight, Dr. Mae Jemison logged 190 hours, 30 minutes, 23 seconds in space, making her the first African-American woman in space. She says, â€Å"I had to learn very early not to limit myself due to others’ limited imaginations. I have learned these days never to limit anyone else due to my limited imagination. † This is an inspiration to other blacks in general who normally assume a second class citizen and believe that they will never do well or will be appreciated in whatever they do. This is a wake-up call, and manifestation of the saying â€Å"Determination is the mother of invention†. In 1993, Dr. Mae Jemison resigned from NASA and founded the Jemison Group, Inc.to research, develop and implement advanced technologies suited to the social, political, cultural and economic context of the individual, especially for the developing world. Current projects include: Alpha, (TM) a satellite based telecommunication system to improve health care in West Africa; and The Earth We Share, (TM) an international science camp for students ages 12 to 16, that utilizes an experiential curriculum. Among her current projects are several that focus on improving healthcare in Africa. She is also a professor of environmental studies at Dartmouth College. Dr. Mae Jamison made a name for herself and name for blacks in general; Her entrepreneurial spirit put her in the limelight and acts as a boost to determined black men and women in Diaspora. Ellen Johnson-Sirleaf. It was quite surprising to read about Ellen Johnson-Sirleaf, I know almost nothing about this â€Å"giant and queen of modern Africa† who is presently the current president of Liberia. According to what I have read so far about this â€Å"queen of Africa† she was born In Monrovia, the capital of Liberia on October 29, 1938. During this period, Liberians had no clue that the First female president of an African country had been born into their mist. Ellen Johnson-Sirleaf is a daughter to descendents of original colonists of Liberia (ex-African slaves from America, who promptly on arrival set about enslaving the indigenous people using the social system of their old American masters as a basis for their new society). These descendents are known in Liberia as Americo-Liberians. From what I read, I noticed that Ellen Johnson-Sirleaf was truly an intellectual power house, a charismatic leader and destined to make a change in Liberia and contribute her quota in Africa. From 1948 to 1955 Ellen Johnson studied accounts and economics at the College of West Africa in Monrovia. After marriage at the age of 17 to James Sirleaf, she travelled to America (in 1961) and continued her studies, achieving a degree from the University of Colorado. From 1969 to 1971 she read economics at Harvard, gaining a masters degree in public administration. Ellen Johnson-Sirleaf then returned to Liberia and began working in William Tolbert’s (True Whig Party) government. Ellen Johnson-Sirleaf also served as Minister of Finance from 1972 to 73, but left after a disagreement over public spending, this is an indication of her prudence and will power. As the 70s progressed, life under Liberia’s one-party state became more polarized to the benefit of the Americo-Liberian elite. On 12 April 1980 Master Sergeant Samuel Kayon Doe, a member of the indigenous Krahn ethnic group, seized power in a military coup. With the People’s Redemption Council now in power, Samuel Doe began a purge of government. Ellen Johnson-Sirleaf narrowly escaped – choosing exile in Kenya. From 1983 to 1985 she served as Director of Citibank in Nairobi. I will say that Ellen Johnson-Sirleaf had a lot of courage, because it was quite unusual for a woman to challenge a dictatorial incumbent president in Africa without being kidnapped, tortured or killed in the process, although She was later sentenced to ten years in prison. Ellen Johnson-Sirleaf spent just a short time incarcerated, before being allowed to leave the country once again as an exile. During the 1980s she served as Vice President of both the African Regional Office of Citibank, in Nairobi, and of (HSCB) Equator Bank, in Washington. Ellen Johnson-Sirleaf played an active role in the transitional government as the country prepared for the 2005 elections, and eventually stood for president against her rival the ex-international footballer, George Manneh Weah. Despite the elections being called fair and orderly, Weah repudiated the result, which gave a majority to Johnson-Sirleaf, Ellen Johnson-Sirleaf eventually became Liberia’s first elected female president, as well as the first elected female president in the continent Africa. . In 2005 She established a Truth and Reconciliation Commission with a mandate to â€Å"promote national peace, security, unity and reconciliation† by investigating more than 20 years of civil conflict in the country and in November 2007, she received the United States Presidential Medal of Freedom, the U. S. government’s highest civilian award. She is truly a giant and â€Å"queen of modern Africa†. References: 1. http://space. about. com/cs/formerastronauts/a/jemisonbio. htm 2. http://www. k-grayengineeringeducation. com/blog/index. php/2008/09/12/first-african-american-women-in-space. 3. http://www. joinafrica. com/africa_of_the_week/ellenjohnsonliberia. htm.

Application Controls, Monitoring, and Honeypots Essay

Application Controls, Monitoring, and Honeypots - Essay Example In addition to maintaining the rules, someone must respond to the alerts. Sometimes signatures may also match valid activity, meaning that responding to alerts first requires determining whether the alert is the result of an intrusion or unexpected, but valid, system activity. All of these require highly trained personnel to carry out (Skoudis, 2002). The implication here is, and as our company's ICT director confirmed, that current intrusion detection systems are somewhat limited in capacity. This does not mean that current intrusion systems are not effective but only they are not as effective as required. Within the context of the stated, it is commonly held that anomaly detection will ultimately prove more valuable and robust because it has the potential to identify previously unknown intrusions or attacks. It is, thus, that the corporation is currently investigating the implementation of honeypots. Honeypots are new security technologies that, while not a replacement for traditional intrusion detection systems, address some of the weaknesses of intrusion detection systems (Spitzner, 2003). As their only purpose is to be attacked, all traffic to the honeypot can be considered an intrusion or an anomaly of some sort. For this reason there is no need to separate normal traffic from anomalous; this makes any data collected from a honeypot of high value. Added to that, since honeypots have no production value, no resource or person should be communicating with them, and therefore any activity arriving at a honeypot is likely to be a probe, scan, or attack. Their value comes from their potential ability to capture scans, probes, attacks, and other malicious activity (Spitzner, 2003). There are three types of honeypots: low interaction, medium interaction, and high interaction. In order to collect information a honeypot must interact with the attacker, and the level of interaction refers to the degree of interaction the honeypot has with a potential attacker (Spitzner, 2003). A low interaction honeypot provides minimal service, like an open port. A medium interaction honeypot simulates basic interactions like asking for a login and password, but providing no actual service to log into. High interaction honeypots offer a fully functioning service or operating system, which can potentially be compromised (Spitzner, 2003). Honeypots have also been shown to be effective against Internet worms. Laurent Oudot (2006) demonstrated how MSBlast could be detected and captured using Honeyd and some simple scripts. He also showed how worm propagation can be slowed using Honeyd to attract the worms attention and then respond very slowly to its requests. Using scripts, Oudot demonstrated how a honeypot could even launch a counter attack against a worm outbreak, either by isolating services or network segments, or by abusing the same vulnerability the worm used and then trying to kill the worm process. Honeypots do face several important challenges: 1) honeypots are totally unaware of attacks not directed at them, 2) they must avoid being fingerprinted because if an attacker can easily identify honeypots their usefulness will be severely limited, and 3) like so many security technologies, they require configuring and maintaining by a knowledgeable person (Spitzner, 2003). Honeypots, because of their very nature, excel at detection. What makes them most attractive in the area of detection is the fact that they

Corporate Social Responsibility Essay Example | Topics and Well Written Essays - 3000 words - 3

Corporate Social Responsibility - Essay Example Hence, the great economist and the founder of the Chicago school of economics, Milton Friedman’s article about social responsibility (1970) and his famous statement that â€Å"The social responsibility of business is to increase profits† needs re-examining and revaluation in light of the changed circumstances under which businesses find themselves now (Friedman, 1970). The themes around which this paper is woven are the point made above as well as the fact that businesses can no longer be content with market based solutions for societal problems in view of the fact that the ongoing global economic crisis has brought into sharp focus the inability of markets to solve the pressing problems, leave alone the minor ones. Hence, this paper argues that CSR is no longer a catchphrase or a fancy slogan but something that is both necessary and required of businesses if the 21st century is to live up to the expectations of the present generation that has been called the 21C genera tion or the â€Å"transition† generation (Martin, 2007: 80). The reason why companies must look beyond profits is also due to the peculiar situation that humanity finds itself in the second decade of the 21st century. Given the political, economic, social and environmental crises that humans as a race are confronting, corporations have a role to play since they contribute the most to the economic well being of humanity and in turn influence the political and social trends (O’Riordan & Fairbrass, 2008: 752). Friedman’s article was written at a time when the world was still largely black and white and the multicoloured hues that make up the business landscape and which confront the world in all their complexity were yet to be manifest (Kennedy, 2001: 56). Hence, Friedman’s injunction about the business of businesses is to make profits seems a bit outdated given the fact that the critical problems facing humanity today

Theory of Constraints and the Public and Non-profit Organizations Essay

Theory of Constraints and the Public and Non-profit Organizations - Essay Example The theory of constraints is based on the practical implications of 'how to think' and deals with thinking processes and their applications. The theory of Constraints was originally developed by Eliyahu M. Goldratt who introduced the concept in his book, The Goal. The concept suggests that the world around us could be changed with a better understanding of the cause effect relationships between certain processes. The theory of constraints thinking processes or TPs are problem solving tools that show ongoing improvements raising questions on what to change and how to cause the change within any organisation (Goldratt 1984, Friedman, 2005). Some of the essential management skills that are essential to any system and recognized by TOC thinking processes would be communication, team building and empowerment. The theory of constraints thinking processes could be applied to production units, to distribution, marketing, sales, project management and laying out the direction of a company. In the Goal, Goldratt suggests that within any complex organisational system, there will be weaknesses and as within a chain the weakest link must be identified and corrected, so also within any organisation, the weaknesses will have to be identified as weaknesses coul... thin any organisation, the weaknesses will have to be identified as weaknesses could limit the ability of any system or company from achieving its goal. The TOC thinking processes or TPS provides an integrated problem solving methodology that help in construction of solutions, communications, collaboration and successful implementation of all solutions to problems identified within any organisation (Goldratt, 1984). The TOC Thinking Processes provides solutions to production, project management, distribution, supplier relations, sales and marketing and also provides generic solutions to specific organisational environments. The Theory of Constraints or TOC is based on the fact that there is at least one limiting factor that constraints the revenue generating process of a company (Friedman 2005). By increasing production rate of a company and initial implementation obstacles, TOC approaches could be used to identify constraints or bottlenecks, exploit these constraints to increase eff iciency of the company, elevate and downplay these constraints and repeat all the measures taken to overcome bottleneck. Some of the essential features of the theory of constraints include gaining agreement that a problem or limitation exists for a company, a direction is sought out to provide a solution to the problem, and negative ramifications and obstacles to implementation are overcome. Goldratt's theory of constraints not only helps identify constraints and helps improving organisational success, but also facilitates improvement for organisations and teams using solutions from the Theory of Constraints (Friedman, 2005). The Theory of Constraints is based on cause and effect logic as the cause of any production problems in a company is identified and sorted out and all local

The fundamental Premise is that business performance will be better Essay

The fundamental Premise is that business performance will be better when there is an alignment between competitive stragegy and the managment of core operating workers inside the business - Essay Example cceptable quality levels and prices; enter into agreements with unions in order to stabilize labour market conditions and be informed about the activities of competitors" (Putti, 1987). Aiming to enable the organization to achieve its strategic goals by attracting, retaining and developing employees, Human Resource Management functions as the link between the organization and the employees. A company should first become aware of the needs of its employees, and at a later stage, understand and evaluate these needs in order to make its employees perceive their job as a part of their personal life, and not as a routine obligation. The Human Resources (HR) function provides significant support and advice to line management. The attraction, preservation and development of high calibre people are a source of competitive advantage for our business, and are the responsibility of Human Resource Management Department. Human resource management is very crucial for the whole function of an organization because it assists the organization to create loyal employees, who are ready to offer their best. The concept of Human Resource Management developed with a more strategic level of thinking about the nature and role of people (as total 24hr per day human beings) working in organizations which are ‘cultures’ in their own right (Lundy O, 1994). While the recent thinking has moved from the control-based model to the compliance model, the soft edge of the latter involves eliciting employee commitment and expecting effectiveness and efficiency to follow. The hard edge of the latter involves ridding the organization of unnecessary layers of middle management which, when stripped of control functions, have very little by way of value added. "The HRM planning should be based on the organisations strategic planning processes with relation to analysis of the labour market, forecasting of the external supply and internal demand for labour, job analysis and plan implementation" (BPP,

Land Law Coursework Essay Example | Topics and Well Written Essays - 2500 words

Land Law Coursework - Essay Example ee’s action.3 S 36 (2) of the said Act states that a court may adjourn the proceedings, or suspend execution of judgement, postpone delivery of possession for a period it thinks fit, if the mortgagor approaches it as a result of mortgagees’ proceeding to take possession of the mortgaged property. The court can do so if it is convinced that the mortgagor will pay the sum due within a reasonable time.4 The reality is, or literally speaking, a mortgagee has the right take possession of the mortgaged property even the next day of mortgage unless the agreement stipulates otherwise as held in Four Maids Ltd v Dudley Marshall (Properties) Ltd. 5. The decision states that mortgagee enjoys an absolute right to repossess a mortgaged property as conferred s.95 (4) of the Law of Property Act 1925,6 unless the mortgagee has contracted himself out of repossession. This decision was applied in Owen v Cornell [1967] 7where in a question arose whether the principal mortgagee could take possession when he had already assigned the debt to Sub-mortgagee. The court held that because the principal mortgagee had reserved to himself the right of reversion by one day, he could exercise his right under s 95(4) of Law of Property Act 1925. Position would have been different if he had not reserved the right under the sub-mortgage agreement and the sub-mortgagee would have prevailed. Thus, in Credit & Mercantile Plc v Marks8, sub-mortgagee was held to have the right of possession as it was involved a registered land wherein the principal mortgagee had relinquished his right of repossession on assignment of debt to the sub-mortgagee. The court observed that since the principal mortgagee had transferred his right to collect his debt, he had no right to complain of default. Thus, the mortgagor need not have defaulted in mortgage repayments as commented by Clarke LJ (at 253) of Ropaigealach decision for the mortgagee to take to take possession of the property the mortgagor lives in

Should the Outside World Intervene to Help the Victims of Violence In Research Paper

Should the Outside World Intervene to Help the Victims of Violence In Syria - Research Paper Example This report declsres that in Assad’s absence the major players who can decide Syria’s fate will be divided along sectarian lines. Iran with the Shiite majority and the rebels with a Sunni majority are already at clashes over the deep sectarian divide. But the overall opinion is that Assad has to go because his regime will not be able to hang in for very long. This paper makes a conclusion that the international discourse regarding whether or whether not outside intervention will actually be beneficial for Syria is an ongoing debate that has garnered varying opinions of people who are against it and people who propagate the move. Based upon the secondary research on the topic it seems that for Syria, the better option is to go with outside intervention. This is because the internal situation in Syria is worsening regardless and internal measures to resolve the situation have already failed. The cost that the Syrian people have borne in the wake of this civil war is catastrophic in its sheer degree and as time passes, this only gets worse. Outside intervention represents to Syria a way out of this mess, a resolution of sorts and eventual freedom from Assad’s regime. While many analysts are of the opinion that outside intervention will make things worse, it seems that this will only be the case initially if so. In the longer run, outs ide intervention will be beneficial for Syria and its people.

Wheelchair Propulsion Forces Essay Example | Topics and Well Written Essays - 750 words

Wheelchair Propulsion Forces - Essay Example Consequently, the Smart Wheel users group identified four parameters generated by use of a smart wheel that would be the most clinically relevant when attempting to improve preserve upper limb function. Smart Wheel is a measurement devices that attaches to a variety of wheelchairs, used in the clinical setting to measure parameters involved in movement of the wheelchair. These four parameters are: velocity, push force, push frequency and stroke length. It is these four parameters that will be analysed as part of this study. Wheelchair velocity can be best described as the speed in metres per second that the wheelchair will travel. â€Å"A velocity of 1.06 m/s represents the average minimum velocity needed to safely cross an intersection† (Hoxie RE 1994, as cited in Cowan 2008). This was chosen as a guide for this study for the purpose of discussion. They found that â€Å"velocity ranged from 0.8 to 1.6 m/s for propulsion on a level surface.† Newsam (1996) also conducted a study looking at the effects of terrain on propulsion. The research found that â€Å"when wheeling over carpet, the velocity of propulsion was reduced to 78% of normal walking velocity.† It also found that individuals with cervical lesions had an even slower velocity, suggesting that users with higher lesions must work near or at their maximum capability for basic community functions. In reference to wheel position and its affect on velocity little research is available. In a study by Walsh (1986) the relationship between seat position and linear velocity in wheelchair sprinting was investigated. Testing was conducted with nine male subjects with various physical disabilities, pushing at maximum speeds on an Ergometer. The results revealed no significant differences between the maximal linear velocities at each of the nine seat positions chosen for investigation. These findings

W 5 OIS Essay Example | Topics and Well Written Essays - 250 words - 1

W 5 OIS - Essay Example At the organizational level, the lack of synchronization of the information systems with the larger organizational structure has often been a problem. An example of this is an information system that is introduced with no changes in organizational hierarchy and structure, creating conflict of roles among various departments of the organization. At the individual level Holladay and Coombs (2013) identified lack of training as the major problem that pull companies away from realizing their information technological investment ambition. This is because the comings of such investments, most of which are information systems demand very high level of training that would ensure that users are comfortable operating the various user interfaces of the systems. Once such training is absent, then it can be expected that efficiency of workers can even be worse than it was before. As far as technological factors are concerned, most organizations refuse to undertake adequate monitoring and evaluation of their information technology investment, making it impossible to adequately undertake system repairs and updating. Meanwhile, the malfunctioning of systems that arise from poor monitoring and replacement of parts can lead to several cases and instances of system mistakes, some of which can lead to adverse cases of errors (Howell and Frost ,

Process of Dealing with Death Essay Example for Free

Process of Dealing with Death Essay When they are gone, we must learn to carry on. In today’s world, there are few things if any at all that last forever; whether it be something bought in a store, or even us human beings everything has an expiration date. Death is not a simple thing to cope with. It takes time to go through the stages of grieving and reach the final point of acceptance. As people, we differ from each other, which means that it may take a week, a month, a year, or even more time for someone to cope with the death of a loved one; it all depends on the person. The stages of grieving after a death in the family vary for everyone but most commonly they tend to include anger/denial, guilt, and the final step in coping with death, acceptance. It is often hard to accept the fact that someone who has always been by your side could suddenly be gone forever. The reality of the situation does not always kick in right away. Some people choose to deny the fact that someone they care about has passed away because they are simply not capable of handling the truth. In some cases, denial combines with anger at the passed loved one because they feel that the person who died left them too early and at a bad time. This was the case when my grandmother (my mom’s mom) passed away a few years ago. My mom was my grandmother’s only daughter that lived here in America therefore they were very close and cherished each other greatly. I have a vivid memory of my grandmother’s deceased body laying on her bed with my mom sitting on a chair next to her and pounding the wall with her fists screaming, â€Å"Why did you leave me, how do you expect me to go on without you?! You can’t be gone, no, this isn’t happening! † It was a hard sight to witness; first off, because of the fact that my grandmother had passed away, that pain on its own was difficult to deal with and to add on top of that my mom was in such an extreme state of denial and anger she would not let anyone near my grandmother. My dad and one of my uncles forcibly took my mom out of the room in order for the funeral home attendants to remove my grandmother’s body. Speaking from personal observations, the time that it takes for people to stop denying the fact that one of their loved ones has passed on, varies depending on the person. After a death in the family, those close to the deceased may experience a sense of regret or guilt for their actions and those of others. Once my grandmother passed away, I had a conference with my school counselor who asked me to tell her about the emotions I was feeling towards my grandmother’s death. One of the emotions I picked out was guilt. I explained that I felt guilty for not having spent enough time with my grandmother, and at that point (thinking like a child) I felt that my grandmother may have passed away because I did something very bad to upset her and she simply did not want to deal with me any longer. My cousin experienced similar feelings. Her emotions were centered more on regretting the times when she had an opportunity to spend time with my grandmother; but she chose to do something else instead. Other people may try to comfort themselves by finding someone to blame for the death of their loved one. Most commonly, this blame is directed at doctors. Even though there may not have been any opportunity for the doctor to heal or revive the dying patient, it helps some people to identify the doctors as the guilty party. The reason why they direct all of their negative emotions to the doctor is because they say, â€Å"It is the doctor’s job to make him/her better; he/she died because the doctor didn’t do everything in his power to make him/her better†. Everyone deals with death differently; some people may feel guilty for their own actions while others tend to look for a figure that they can blame for the death of their loved one. Acceptance is the final step in coping with death. This is the time during which those close to the deceased are able to go through an emotional catharsis. Arriving at this stage is not easy but it pays off because you are finally able to â€Å"let go†. It is important to keep in our memories those near and dear to us, but it is equally as important not to wallow in the past because by doing so, all hope for the future is suffocated. Accepting the fact that someone you love is gone forever is difficult, it is normal to feel filled with emotion. Once the fact that my grandmother had passed finally set inside my understanding I cried for many hours every day. Crying was my way of letting out all of the emotions that I had stored inside of me after witnessing the pain my mom had gone through and losing my grandma. Saying good-bye is not easy, but it is something that must be done. Everyone copes with death differently. It may take longer for some people to realize that even though they may have lost someone who has always been of great importance to them, life must go on. This is why it is important to learn ways in which to deal with the situation and simply make the best of it. Some things can be undone; unfortunately, death is not one of those things. Even though discussing death is not a cheery topic, it is important to not only know but also to understand the different stages of grieving because as humans we cannot run away from death or avoid it. All people have an expiration date on this planet, for some it is sooner than others. Understanding the steps/stages in the grieving process can be beneficial when helping a friend cope with the loss of a close member of their family. By knowing the steps and what they consist of, you will have an understanding of why the person is reacting the way they are. It also makes it much easier for you to guide the grieving individual to the final step of acceptance from which they can return to their everyday life with the understanding that death is part of the human life cycle, and as depressing and difficult as it may be to comprehend it is an inescapable aspect of our human lives.

Pros And Cons Of Media Globalization Media Essay

Pros And Cons Of Media Globalization Media Essay Globalisation and its impacts have constituted one of the latest buzz words of today. It could be seen on the streets in any part of the world through the global reach of the Adidas sport shoes brand or the McDonalds fast-food chain, in our everyday media consumption through global media coverage of events such as the recent uproar in Egypt, terrorist actions such as the 911 and celebrity events such as the royal marriage of Prince Williams and Kate Middleton. According to David Held and Anthony McGrew, globalisation denotes the expanding scale, growing magnitude, speeding up and deepening impact of transcontinental flows and patterns of social interaction. It refers to a shift or transformation in the scale of human organization that links distant communities and expands the reach of power relations across the worlds regions and continents. (Held and McGrew, 2002, p.1) The subject of media globalisation is primarily concerned with the domination of the global media industry by a small number of powerful transnational media conglomerates, and the extent to which these impact upon the worldviews of individuals in different parts of the world. Media have a central place in processes of globalisation for three reasons. Firstly, media corporations have been among those corporations that have been increasingly globalizing their operations. Secondly, media organizations help to develop the global communications infrastructure that facilitates global information flows and cross-border commercial activities. Lastly, global media are the principal means through which we make sense of events in distant places, and the information and images that they carry are central to the development of shared systems of meanings and understanding across borders. (Flew, 2007, p. 70-72) With the radical critique of global media being associated with strong globalisation arguments, globalisation is seen as the dominant force in media industries currently, notwithstanding counter-trends and localized forms of resistance. (Flew, 2007, p. 72) Cultural, Political and Economic Implications of Media Globalisation Pros of Media Globalisation The growth in global markets has helped to promote efficiency through competition and the division of labour the specialization that allows people and economies to focus on what they do best. Global markets also offer greater opportunity for people to tap into more diversified and larger markets around the world. It means that they can have access to more capital, technology, cheaper imports and larger export markets. The extensive reach of globalisation extends to daily choices of personal, economic and political life. For instance, greater access to modern technologies, in the world of health care, could make the difference between life and death. In communications, it would facilitate commerce and education, and allow access to independent media. Globalisation can also create a framework for cooperation among nations on a range of non-economic issues that have cross-border implications, such as immigration, the environment and legal issues. Simultaneously, the influx of foreign goods, services and capital in a country can create incentives and demands for strengthening the education system, as a countrys citizens recognise the competitive challenge before them. A core element of globalisation is the expansion of world trade through the elimination or reduction of trade barriers, such as import tariffs. Greater imports offer consumers a wider variety of goods at lower prices, while providing strong incentives for domestic industries to remain competitive. Exports, often a source of economic growth for developing nations, stimulate job creation as industries sell beyond their borders. The media industries have an innate tendency towards concentration of ownership and control, and that this tendency has been extended since the 1980s from the national to the global scale. Herman and McChesney (1997, p.1) argued that since the early 1980s there has been a dramatic restructuring of national media markets, along with the emergence of a genuinely global commercial media market. The principal consequence of such developments has been, as McChesney and Schiller argue, that a transnational corporate-commercial communication began to be crafted and a new structural logic put in placeà ¢Ã¢â€š ¬Ã‚ ¦ [as] communicationsà ¢Ã¢â€š ¬Ã‚ ¦ became a subject to transnational corporate-commercial development (McChesney and Schiller, 2003, p.6). McChesney has noted a focus upon the relationship between media globalisation and the concentration and centralisation of media ownership, and the interconnected nature of these two processes. The trend towards a global media oligopoly hastened in the 1980s and 1990s, for dominant media firms to seek international expansion in order to ensure their presence in a range of media markets and by concentration of ownership within media industries and the expansion of connections across media industries through the growth of multinational, cross-media conglomerates such as Disney, News Corporation etc. Cons of Media Globalisation Critical media theorists have always been concerned with tendencies towards concentration of media ownership and their impact upon politics, society and culture, and the impact of media globalisation led by Western transnational media corporations. Herbert Schiller argued that the current stage of the US-dominated global capitalism was one where what he termed the entertainment, communications and information (ECI) industries had achieved economic preeminence; their influence was enacted not only in the political-economic sphere but upon global culture and consciousness; and the result was a form of cultural imperialism, whereby the ideas and ideologies of the dominant West (particularly in the United States) exerted hegemony over the populations of the rest of the world. The radical critique of global media associated with critical political economy has experienced a resurgence of interest in recent years. The proposition that media ownership worldwide is subject to growing concentration, leading to reduced competition and increasingly homogenous media content worldwide. Edward Herman and Robert McChesney have argued that theà ¢Ã¢â€š ¬Ã‚ ¦ global media system is dominated by three or four dozen large transnational corporations (TNCs) with fewer than ten mostly U.S-based media conglomerates towering over the global market (Herman and McChesney, 1997, p.1). This has often been taken as a given starting point for understanding the nature of global media today, and is routinely repeated by critics for globalisation (Flew, 2007, p.73). For instance, Manfred Steger (2003, p.76) argues that to a very large extent, the global cultural flows of our times are generated and directed by global media empires that rely on powerful communication technologies to spread their messageà ¢Ã¢â€š ¬Ã‚ ¦ During the last two decades, a small group of very large TNCs have come to dominate the global market for entertainment, news, television, and film.

Social interaction and the development of infants

Social interaction and the development of infants In the first two years of an infants life, they undergo many changes that allow them to develop into a fully functioning human being. These developments are controlled by internal and external factors. Social interaction is an exceedingly influential external factor, which can help to form many aspects of development. For example, infants in the first two years of their lives are learning to differentiate between social stimuli, for example recognising mothers face and voice. This is mastered by the infant in a relatively small time scale after birth (Mills Melhuish, 1974). The child can then use this new learned ability to interact with its caregivers, even without understanding the social meaning of their actions, for example when a child smiles, the child is not aware of what a smile means in our society, but when the caregiver sees this sign of emotion, they cannot help but to smile back, and positively reinforces that learned action to the child. To see how important social int eraction is for the development of a child in the first two years of its life, it is important to observe key areas of behaviour such as attachment to others, the childs temperament and their language acquisition. One of the most researched areas of development in children is attachment and how we form them. Attachment, as defined by Ainsworth and Bell 1970, is an affectional tie that once person forms between himself and another specific one. This is the first strong social connection that infants have to another human being/s. Research by Shaffer and Emerson, conducted in 1964, and suggested that there are three stages in the development of primary attachments; the asocial stage, the stage of indiscriminate attachment and the stage of specific attachment. The asocial stage, which spans from birth to six weeks, is when the infant uses signals to interact with its environment, for example crying, babbling, and smiling and so forth, which is not aimed specifically to anyone. The second stage of indiscriminate attachment, the infant has learnt that if it cries it will receive attention, but is still not aimed at a particular individual and the child can be comforted by anyone. This stage lasts u ntil around seven months after birth. The last stage, specific attachment, can be observed between seven and eleven months, and is suggests that the infant will start to form specific attachments to caregivers, a bond is then made, and will no longer accept comfort from others. Bowlby (1988) described that the need for social attachment between the infant and its caregiver is because the infant needs to actively seek to attain or maintain proximity to another individual that is more attuned to their surroundings and can provide for the infants needs (attachment behaviour). There have been three key theories to try and explain why we form attachments, and if it is important for children to form social bonds in the early stages of life. The psychoanalytical theory proposes that feeding and the production of food is the main reason why we form attachments. Based on Freuds psychosexual stages, this theory focuses on the oral stage (the first of the stages), and suggests that the child gets pleasure from attaining food through sucking behaviour (Miller, 1993). Erikson in his stage theory (1950, 1968) states that the first year of life is where the infant establishes trust between themselves and a caregiver, who in return provides nutrition and comfort. Without this trust, the child does not know whether they will be provided with the vital source of support that the child needs to survive. There are two main learning theories, the first being the early learning theory. The psychoanalytical theory is closely linked to this theory, as they both suggest that being provided with food is the main reason why we attach. This theory revolves around the secondary drive hypothesis by Dollard and Miller (1950), which explains that infants attach to the mother to gain access to important things that are needed for survival, things that they cannot provide for themselves for example food and warmth, all of which soothe the childs cries. This social interaction between the mother and the child then allows for the infant to associate this with the caregiver, and the bond is strengthened. However, this hypothesis disagrees with research conducted by Shaffer and Emerson (1964), which found that the infant can become attached to more than one caregiver, who is not necessarily the sole provider to the physiological needs of the child. The second learning theory for attachment is the social learning theory devised by Hay and Vespo, (1988). The theory states that the child does not automatically become attached to the mother, or caregivers, but that the caregivers has to interact with the child and show them affection, for the child to feel a connection with them, from which they can then form a relationship together. Another theory of attachment is Ethological theory, which states that there is an evolutionary role in the reasoning of why we as humans attach. The theory suggests that mothers before birth are already biologically predisposed to become attached to their offspring, and therefore ensures that they survive, and the species can continue. Research to support this theory was mainly collected by Bowlby (1969, 1980), who suggests that attachment is monotropic; focused on only one caregiver, namely the mother. However, research by Ainsworth (1979) disagrees with Bowlbys theory of monotropy, and suggests that infants form more than one attachment to many different caregivers. This is supported by Shaffer and Emersons study, which displayed attachments to other close family members for example grandparents and fathers. It has also been found that siblings can also be important in contributing to the social development of infants (Adler, 1964). These three theories suggest that attachment between the infant and its caregiver is formed relatively easily, but comparatively, if a child has little to no access to social interaction in the first two years of their life, it can be particularly harmful to the childs development. This can be explained by the social stimulation hypothesis which can be observed in research collected in the 1940s, which showed the children growing up in institutions had a low staff to child ratio and so rarely had any interaction with a caregiver. Children were also segregated from each other, and so were cut off from all forms of social stimulation. At first the infants acted no different from those brought up in normal family homes where the children are given lots of attention and interaction, but after six months there was a noticeable difference; the childrens behaviour changes and the children were completely avoidant of any social activities (negative working model of the self) and see that the y are not getting noticed by others (negative working model of others), (Goldfarb, 1943). This research implies that children need constant social interaction to develop properly. Bowlby (1953), after studying institutional care after the Second World War, saw that the care that the children were receiving was more physical, and not for their emotional needs. He developed the maternal deprivation hypothesis; suggested that infants should experience a warm, intimate and continuous relationship with his mother. Conversely, infants in institutions in which there are a much higher staff to infant ratio generally interact normally with their caregivers and develop well throughout life and suffer fewer effects (Tizard and Rees, 1975). Language is another element of develop in the first two years that is strongly influenced by social interaction. There are three main theories that discuss what influences our language acquisition. The learning/empiricist perspective explains that children learn their language by listening to their parents speech and imitating it (Bandura, 1971) and by positive reinforcement when the infant says something grammatically correct (Skinner 1957). Research by Weisman and Snow (2001) found that if caregivers expose their children to more advanced words earlier on in life, then the childs language will be more developed than other children of the same age group. However, it has been argued that children cannot learn syntax this way, as seen by Baron (1992), when children are just learning new sentences; they create statements that adults do not say and therefore could not have imitated. Chomsky (1959, 1968) disagrees with the learning perspective and suggests a more biological/nativist approach and not a social implication. He suggests that language is too complicated for it to just be learned from caregivers, instead that children born with an innate language acquisition device (LAD) in the brain which processes verbal input. Slobin (1985) thinks that we have an inborn language-making capacity (LMC) instead of an LAD. Both of these systems supposedly enable infants to combine vocabulary that has been collected in the brain, enables them to understand what it means, and then can use this knowledge to create sentences. Lenneberg (1967), combined the two theories of Chomsky and Slobin, and suggests the sensitive-period hypothesis, which states that the best time to learn a language is before adolescence; after this period has been reached language becomes very difficult to learn. For example, a case study of 14 year old Genie (Curtiss, 1977), who until this age was ke pt locked away with little to no social interaction, and was beaten by her father if she made any noise. When Genie was discovered, she had not had access to language and so could not speak. When she was taught language, she was able to conjure up sentences quite easily, however she was unable to acquire the rules of syntax, which young children learn early on in life without being taught to, supporting Baron (1992) theory. However, Moerk (1989) suggests that language development cannot be explained using LAD or LMC because the researchers themselves do not understand how they work, and how the information received in the brain is processed and understood. The interactionist perspective suggests that both empiricist (social) and nativists (biological) perspective both contribute to learning acquisition (Tomasello, 1995). A third factor for development that is influenced by social interaction in childhood is temperament. A definition of temperament as described by Hartup and Van Lieshout (1995) is a substrate for personality development, consisting of simple, basic styles that emerge early and that are tied closely to distinctive modes of emotional expression. Thomas and Chess (1977, 1989) reported three main type of temperamental styles; Easy infants; happy, easily comforted, Slow to warm up infants; fussy and are less adaptive, and Difficult infants; negative, extreme reactions for example long periods of continuous crying. Hartup and Van Lieshout (1995), suggests that temperament has social implications for the way in which an infant relates to other people for example difficult infants are more likely to develop behavioural problems as they get older. A way to try and combat this behaviour is for caregivers to provide more stimulating challenges for the child and try to promote the children to act in a more pro-active manner (Smith, Cowie and Blades, 1998). Thus suggesting that although temperament can continue throughout life, using social techniques can reduce aspects of temperamental behaviour as the child develops. In conclusion, attachment to caregivers, language acquisition and a childs temperament are all influenced by social interaction, and can be seen that the lack of it can lead to developmental abnormalities in children. For infants to develop healthily in the first two years of their life, it appears that they need high amounts of cognitive stimulation, feelings of security from those that care for them, and encouragement for behaviour, so that the child can positively attribute their actions and use these social cues, for example smiling and babbling, to develop all the key skills that they will need as they grow up.

Reality and Fiction Essay -- Tabloids Truth Writing Essays

Reality and Fiction The front page of a supermarket tabloid is usually splashed with such ridiculous headlines as â€Å"Human Baby Born with Dog’s Head!†; or â€Å"Olsen Twin Beats Anorexia and Gains 200 lbs!† These titles suggest the type of information that the magazine contains—sensational, outrageous and often untrue stories. Despite these titles, their sensational nature can sometimes spark the curiosity of the reader, prompting them to read further. Although the tabloid is not a particularly well-respected genre of literature, Gloria Sawai adapts it for her own purposes in her writing. In a short story titled â€Å"The Day I Sat With Jesus on the Sun Deck and a Wind Came Up and Blew My Kimono Open and He Saw my Breasts†, Sawai draws upon this typically disprespected tabloid-type of narrative, prompting the reader to question their sense of reality. The author adapts several conventions which would typically be found in a tabloid to achieve this. She places ordi nary characters in extraordinary situations; she trivializes momentous events by presenting them in very simple terms; she removes all suspense by giving away the plot in the title; she challengers her reader to call her bluff as to whether or not her story actually occurred. Through the adaptation of conventions characteristic of tabloid literature, Sawai successfully challenges her reader to question their perception of what is â€Å"real†, prompting them to the ponder whether or not this extraordinary story might have actually taken place. Perhaps one of the most recognizable characteristics of tabloid-type narrative is the description sensational, and often unbelievable events occurring to everyday people living in ordinary milieus. In the third paragraph of â€Å"The Day I Sat W... ...narrative conventions in this short story help to illustrate this situation, and in the process, give the reader cause to question whether or not this unbelievable event could actually occur. Sawai presents her readers with this challenge to their perception of reality through the story’s title, in the way that she trivializes a miracle by placing it in an ordinary setting, and also through the possibility that the story is semi-autobiographical, thus making it true. The author is playing a game with the reader, never revealing whether or not her story is based on reality or not. Of course, one would most likely assume that Jesus did not in fact appear in Moose Jaw, Saskatchewan on September 11th, 1972. Nevertheless, Sawai intices her audience to play with the idea for a moment, challenging the socially accepted standards of what is reality and what is not. Reality and Fiction Essay -- Tabloids Truth Writing Essays Reality and Fiction The front page of a supermarket tabloid is usually splashed with such ridiculous headlines as â€Å"Human Baby Born with Dog’s Head!†; or â€Å"Olsen Twin Beats Anorexia and Gains 200 lbs!† These titles suggest the type of information that the magazine contains—sensational, outrageous and often untrue stories. Despite these titles, their sensational nature can sometimes spark the curiosity of the reader, prompting them to read further. Although the tabloid is not a particularly well-respected genre of literature, Gloria Sawai adapts it for her own purposes in her writing. In a short story titled â€Å"The Day I Sat With Jesus on the Sun Deck and a Wind Came Up and Blew My Kimono Open and He Saw my Breasts†, Sawai draws upon this typically disprespected tabloid-type of narrative, prompting the reader to question their sense of reality. The author adapts several conventions which would typically be found in a tabloid to achieve this. She places ordi nary characters in extraordinary situations; she trivializes momentous events by presenting them in very simple terms; she removes all suspense by giving away the plot in the title; she challengers her reader to call her bluff as to whether or not her story actually occurred. Through the adaptation of conventions characteristic of tabloid literature, Sawai successfully challenges her reader to question their perception of what is â€Å"real†, prompting them to the ponder whether or not this extraordinary story might have actually taken place. Perhaps one of the most recognizable characteristics of tabloid-type narrative is the description sensational, and often unbelievable events occurring to everyday people living in ordinary milieus. In the third paragraph of â€Å"The Day I Sat W... ...narrative conventions in this short story help to illustrate this situation, and in the process, give the reader cause to question whether or not this unbelievable event could actually occur. Sawai presents her readers with this challenge to their perception of reality through the story’s title, in the way that she trivializes a miracle by placing it in an ordinary setting, and also through the possibility that the story is semi-autobiographical, thus making it true. The author is playing a game with the reader, never revealing whether or not her story is based on reality or not. Of course, one would most likely assume that Jesus did not in fact appear in Moose Jaw, Saskatchewan on September 11th, 1972. Nevertheless, Sawai intices her audience to play with the idea for a moment, challenging the socially accepted standards of what is reality and what is not.

The Internet Has a Negative Impact on American Families Essay -- Argum

The Internet Has a Negative Impact on American Families Does the Internet truly have a negative impact on today’s family life? Many say that is most definitely does. Have you ever known someone who is obsessed with the Internet or spends more time on the Internet than they had intended to? You might begin to think they are addicted. Ricco Siasoco defines Internet addiction as â€Å"a broad term including users addicted to chat rooms, auctions, web surfing, among others.† These other Internet addictions may include cyber relationships, gaming, and trading. I have read several articles related to Internet addiction, and can not come to a conclusion on whether or not it is a true addiction. However, I do believe that the Internet does have a negative effect on American families. There have been many studies performed to research the idea of Internet addiction. It is just like any other addiction, including gambling, alcoholism, and eating disorders, and all of which destroy families in one way or another. Experiments created by psychologists and sociologists to explain the addiction resemble those of pathological gamblers described in the DSM-IV.[1] Using that information, a survey was made to determine if users have Internet addiction. The questionnaire includes eight questions such as â€Å"Do you feel the need to use the Internet with increasing amounts of time in order to achieve satisfaction?† and â€Å"Do you use the Internet as a way of escaping from problems or of relieving a dysphoric mood?† Participants who answered yes to five or more of the questions were considered addicted Internet users. One aspect of the Internet that people can become addicted to is Cybersex and Cyber R... ...e), and Stage III Balance (Normal). â€Å"Some people simply get caught in Stage I and never move beyond it. They may need some help to get to Stage III,† declares Grohol. Internet users are being tested for addiction, because of how it effects their lives. Most people may think that it is not a major issue. However, as you can see, many lives and families are destroyed because of the Internet. Who knows if there will be new laws against chat rooms to stop cyber relationships? Could our government stop online gaming? I don’t think people will be able to stop trading online, because of its convenience. This leads me to one last question: Will Internet addiction be the next disorder in the DSM-IV? [1] Diagnostic and Statistical Manual of Mental Disorders- Fourth Edition. [2] http://psychcentral.com/netaddiction/, by John M. Grohol, Psy.D.

Big Foot

The Mystery of Bigfoot Bigfoot is unquestionably North America’s biggest crypto zoological mystery. The idea of Bigfoot has been around for hundreds of years, its history and possible sightings have been documented for years on end. Throughout history, man has battled the topic of Bigfoot and if this creature really does exists. Researchers have found arguable evidence, and numerous sightings have been reported throughout North America. Then again, roughly 70% of sightings reported are a misidentification.Bigfoot supposedly inhabits forests mainly in the Pacific Northwest region of North America. Scientists discount the existence of Bigfoot and consider it to be a combination of  folklore, misidentification, and  hoax, rather than a living animal. So the question remains, is the existence of this creature fact or fiction? So where does the name â€Å"Bigfoot† come anyway? It is said that this Indian-sounding word was coined in the 1920’s by J. W. Burns, a tea cher who for fours years collected stories about wild, hairy giants from his Chehalis Indian friends.Burns combined several similar Native Canadians’ names for these creatures and created the word â€Å"Sasquatch†. In recent years, scientists and folklorists looking to bring respectability to the subject but most North Americans still use the name â€Å"Bigfoot†. The first use of the now widely used label did not occur until a construction worker named Jerry Crew appeared at a northern California newspaper office with a cast of the alleged Bigfoot’s foot found in the mud in Bluff Creek Valley.Hundreds of people have reported seeing the Bigfoot or it’s footprints but none have physical evidence to back up their stories. They describe the creature as standing from seven to ten feet tall and weighing more than six hundred pounds. The distinctive footprint shows a track as left by a giant five toed human foot. The average length is fourteen to sixteen inches long. The most controversial evidence of Bigfoot's existence is the infamous Patterson video. It was filmed in 1967 near Bluff Creek California. By Roger Patterson, an amateur Bigfoot hunter and rodeo cowboy.In the video, which was filmed in a dry creek bed, Bigfoot appears to be walking along the creek bed, and at one point even stared at the camera. The footage has been analyzed many times by scientists, some of which say the footage is realistic while others do not. Many times when people see something like Bigfoot they think that they will be ridiculed by their friends and neighbors, so they keep there encounter secret for many years. Until others tell their stories. The top three questions that come into some ones mind when they hear about Bigfoot are â€Å"is he man, myth or creature? . Many do not believe of such a creature lurking the forests and are uneducated on the topic so they come to the quick conclusion that someone disguised himself in a costume for attention perhaps. The majority believes strongly that Bigfoot is evidently a myth or hoax for the simple logic that there is not enough evidence to prove Bigfoot’s existence. The most arguable evidence are footprints that can be easily replicated to furthermore puzzle scientists. Also, the lack of carcasses and excrements just don’t add up.Lastly, the big question of is it just a creature which means every sighting would have to be a misidentification. Scientists do believe and have partial evidence that Bigfoot could be a relative with an ancient ape named â€Å"Gigantopithecus†. Then again, some footprints have been reported with claw marks, which could be a grizzle bear. Many can speculate the existence of Bigfoot but until a body is scientifically examined, the riddle of Bigfoot will continue as one of cryptozoology’s biggest and most famous enigmas. Even if Bigfoot is just one big hoax, the myth will live on forever.