Abraham Lincoln Essay Example

Abraham Lincoln Essay Example Abraham Lincoln Essay Abraham Lincoln Essay Abraham Lincoln in the US History Abraham Lincoln, the greatest man in U.S. history, had many great accomplishments for this nation throughout his presidency. The most significant of these accomplishments was the abolishment of slavery.His love for America motivated him to do what he knew to be just.Lincoln had a meaningful, but shortened life, but he still accomplished more things than most other people in their lifetimes.Abraham Lincoln, the greatest man in U.S. history, had a childhood, education, and achievements that are exceptionally commendable. Abraham Lincoln was born on February 12, 1809 in a log cabin in Hardin County, Kentucky. (Donald 22; Neely 347)Abe liked to work outdoors, and was raised to do farm work. (Sandburg 14; Neely 347)When Abe was seven, his family moved to Indiana. (Donald 23)Partly on account of slavery, Abraham recalled, but chiefly on account ofdifficulty in land titles in Kentucky. (Neely 347)His formal education he received in an Indiana Blab School, using only the spelling book. (A ngle 23)He loved to read, especially the Bible, Aesops Fables, and Robinson Crusoe, to name a few. (Angle 23-24)In 1817, his grandparents Tom and Betsey Sparrow died of milk sick.Abes mother also died from this on October 15, 1818. (Sandburg 11) Lincoln reached his full height, 64, before he was 20.Abe was thin, awkward, big-boned, and strong in the arms. (Baritt 313)Abe was interested in politics, and would walk 30 miles to a courthouse to hear lawyers speak and to see how they argued.Abe also heard political speakers and mimicked them.In 1830, he made hisfirst political speech, on improving the Sangamoon River for better navigation. (Sandburg 15, 21) On March 1, 1830, he left for Illinois to the town of New Salem, looking for a career to pursue. (Sandburg 20)In 1831, however, he was still unsure of his career.

Free Essays on Age Of Experimentation - The Twenties

The Reactions That Made the 1920’s Experiments Productive The decade of the nineteen-twenties was an â€Å"age of experimentation† in a various number of ways. The twenties were characterized by excessive changes in the numerous aspects of American life. All of the revolutionary changes undertaken during this era were, for the most part, centered on having fun. Enjoying life became everyone’s number one priority during the twenties; this can be seen with the numerous social changes that occurred during the decade. Women, in particular, played a great role in experimenting with many new socially questionable activities such as drinking. Prohibition was also important in shaping the new social, as well as cultural and economic, age of the nineteen-twenties. It helped bring about bootlegging, which led to the rise of gangsters and mobs. There were also many other new cultural pursuits brought about during the nineteen-twenties. An example would be the significant increase in the number of African Americans, as well as oth er immigrants through the twenties. As a result of an increase of blacks and immigrants, groups such as the Ku Klux Klan soon rapidly grew and became known. Another cultural pursuit throughout the nineteen-twenties was to rid immigrant Bolshevists that shed Americans with fear, from the U.S. The social and cultural aspects of the twenties mentioned, particularly prohibition, had drastic effects on the economy of the U.S. during the nineteen-twenties. The twenties was an age to experiment with new ideas and inventions, such as Henry Ford’s successful automobiles. It was also an age when an abundant amount of Americans began to look into real estate to make a significant profit. However, as a result of drastic inflation, the balanced and earning economy of the U.S. was severely dwindled; there was an immense stock market crash towards the end of the decade. Also contributing to the U.S. economy was the ... Free Essays on Age Of Experimentation - The Twenties Free Essays on Age Of Experimentation - The Twenties The Reactions That Made the 1920’s Experiments Productive The decade of the nineteen-twenties was an â€Å"age of experimentation† in a various number of ways. The twenties were characterized by excessive changes in the numerous aspects of American life. All of the revolutionary changes undertaken during this era were, for the most part, centered on having fun. Enjoying life became everyone’s number one priority during the twenties; this can be seen with the numerous social changes that occurred during the decade. Women, in particular, played a great role in experimenting with many new socially questionable activities such as drinking. Prohibition was also important in shaping the new social, as well as cultural and economic, age of the nineteen-twenties. It helped bring about bootlegging, which led to the rise of gangsters and mobs. There were also many other new cultural pursuits brought about during the nineteen-twenties. An example would be the significant increase in the number of African Americans, as well as ot her immigrants through the twenties. As a result of an increase of blacks and immigrants, groups such as the Ku Klux Klan soon rapidly grew and became known. Another cultural pursuit throughout the nineteen-twenties was to rid immigrant Bolshevists that shed Americans with fear, from the U.S. The social and cultural aspects of the twenties mentioned, particularly prohibition, had drastic effects on the economy of the U.S. during the nineteen-twenties. The twenties was an age to experiment with new ideas and inventions, such as Henry Ford’s successful automobiles. It was also an age when an abundant amount of Americans began to look into real estate to make a significant profit. However, as a result of drastic inflation, the balanced and earning economy of the U.S. was severely dwindled; there was an immense stock market crash towards the end of the decade. Also contributing to the U.S. economy was the ...

Argumentative paper Assignment Example | Topics and Well Written Essays - 750 words

Argumentative paper - Assignment Example However, an objective observation of this issue and ready commonsense do indicate that Etzioni is highly misplaced in his beliefs. McDonald’s and other fast food outlets are actually safe and viable platforms for encouraging values like hard work and discipline amongst youngsters, while allowing them to earn money for investing in education and other value addition activities. One single belief that rings throughout the article written by Etzioni is his disbelief in the capabilities, decision making capacities and commitment of the contemporary teenagers. Perhaps, Etzioni is totally oblivious of the fact that these so called â€Å"young, yet uninformed individuals (2)† he is so doubtful of could be much more informed and ambition driven than he expects them to be. Yes, it is true that some teenagers earning money from fast food chains may spend it in an irresponsible way. However, this fact could not be transposed on all the teenagers working with fast food chains in a much generalized context. Fast food chains only provide an avenue for earning money and acquiring skills to the teenagers. They simply cannot have such a pervasive impact on the academic and career choices of the teenagers, if they are well placed in the basic values, which are mostly imparted at school and at home. So, fast food chains are in a sense neutral. If the parents and the schools do take pains to impart the right values to the kids and have confidence in them, there is nothing much to fear. The second peculiarity of Etzioni’s approach towards the issue is that the vantage point from which he tends to observe it is utterly distant from an understanding of the contemporary realities in which the teenagers live and grow. Etzioni is still hovering in the era of â€Å"newspaper route and sidewalk lemonade stand (1)†, while the world has moved on into the realm of the internet and satellite TV. The teenagers today are much more informed and are introduced to the r ealities of life at quiet an early age as compared to what it was a few decades ago. The careers they aspire to pursue in the future mostly require an insight into and grounding in the way organized corporations work and operate. Besides, considering the rising cost of education, good earning opportunities during school days could somewhat cushion their college expenses at a later stage. Fast food chains like McDonald’s facilitate the teenagers with both these requisites, and that too in a safe and regulated environment. Some critics of the teenage employment opportunities provided by fast food chains may seem right in suggesting that engaging in relatively high paid and comfortable jobs, with no opportunities for skill enhancement, at such a tender age may dilute the sense of ambition and aspiration in the teenagers. One thing that such individuals and groups need to realize is that fast food outlets are never supposed to inculcate ambition and drive in school going kids. Th ey are simply running a business, which extends an opportunity to the teenagers to work and earn. The work ethics and aspirations of the teenagers are influenced by a much larger environment, which includes the guidance, support and expectations extended by the family, the education and skills imparted by the schools, the extracurricular activities accessible to the teenagers,

Corporate Social Performance (research report) Essay - 1

Corporate Social Performance (research report) - Essay Example CSR activities not only ensure that the company is gaining a positive brand image but it also ensures self-sustainability in the near future. CSR activities now a day have become quite a mainstream phenomenon where most of the well established firms have developed and maintain the concept of social sustainability (Manuel Castelo BrancoLÃ ºcia Lima 2006). CSR can be defined as the relationship between a corporation and the national government and the citizens (McDonald and Rundle-Thiele 2008). It encompasses the positive influence of the organisational activity on the welfare of the nation and its people. In a more streamlined perspective its can be stated that the CSR is the relationship between the corporation and the society (Jones and Wicks 1999). The business firms often undertake responsibility to improve the society that they are operating in. This as a result fosters social support and at the same time creates a sustainable working environment for the organisation to thrive f or a longer period of time. The firms often undertake initiatives like child education for the under privileged, keeping the society clean by the environmental standards (Baumgartner and Ebner 2010). The corporate social responsibility is based on three principles Sustainability, Accountability and Transparency. The sustainability deals with the long term thriving of the organisational activities. It involves taking certain actions in the present that has a positive impact on the future. This suggests that if the resources that are not infinite are being used in the present then they may get exhausted in the future. Sustainability indicates that the organizations must utilize the resources responsibly and should also ensure that they are being generated at a steady rate (Brower and Mahajan 2013). The Accountability of the organisation involves its acknowledgement towards the impact on the environment causing from

Plz see attachments Essay Example | Topics and Well Written Essays - 1250 words

Plz see attachments - Essay Example In the place that was referred to as the New Spain, St Augustine was the first place to be established (James et al, pp 36). Here was occupied mostly by Indians that were converted to Christianity. At the time New Mexico established, it collapsed because of inadequate wealth. In the New England, separatists and Puritans constituted the population. Following the dissent and reformation of England, the people of England stated to arrive in the new America for the reasons of religion. New England colonies were made up of mostly Catholics and puritans who banked their hope on putting their beliefs in practice with no interference from church hierarchy or England. The colonial extension under Castile’s crown was instigated by Spanish conquerors and grown by Spanish monarchy through its missionaries and administrators. Motivation for the expansion of colonies was increased Christianity faith and trade through local conversations. This took a period of over 400 years from the year 14 92 to the year 1898. To start with is the arrival of Columbus in the year 1942, over 4 centuries the empire of the Spaniards would extend across: in the present day in most Central America, Mexico and Caribbean island; most of American North that include Southern coastal, Southern western, California part of United States; and although not active, with territory claimed presently British Columbia; and states of Oregon, Washington and Alaska; and south America. At the start of 19th C the movements on revolution ended up in independence of many American Spanish colonies, with exception of Puerto Rico and Cuba, released in the year 1898 subsequent to the war waged by Spain against the Americans, together with Philippines and Guam in Pacific. The political loss of the last territories by Spain brought an end to the Spanish colonization (Kathy, pp 64) The settlements of the Spanish in the South West of America and English colonies in the New England in the 17th C may be contrasted in bas ically two ways. To start with, their political patterns were based entirely on different government systems and classes of ruling. Secondly, they used different economic development avenues. The settlements of the Spanish started with Cortes while some conquered Americans of central, south and south west of North America. Following the eradication of a big part of the population of native America, the Spanish started intermarrying with the Native Americans. Consequently, only part of that population composed of pure Spanish. The Spanish held the highest political and social status. The native from Spain were a step ahead of the ones that were born in America while the ones who had Indian heritage or mixed were bottom placed in the social hierarchy. Moreover, as the Spanish arrived as conquerors, consequent system of politics was purely solely and autocratically aimed at extending the motherland. Just after have the Americans conquered, the Spanish stole huge portions of silver, gol d and some valuables. The tradition made a step into the 17th C as the Spanish ships came to America to ferry these valuables like gold and silver to Spain. Through this, the Spanish perceived the Spanish America to be a useful tool to use in its objective of mercantilist. As mercantilism was its sole objective, Spain issued its colonies with slight self rule. Instead, the Spanish rulers decided every policy governing the territories of the new world (Kathy, pp 70) Coming back to the English, their settlement was peaceful on the North

Advantages of Binary System

Advantages of Binary System The binary number system, base two, uses only two symbols, 0 and 1. Two is the smallest whole number that can be used as the base of a number system. For many years, mathematicians saw base two as a primitive system and overlooked the potential of the binary system as a tool for developing computer science and many electrical devices. Base two has several other names, including the binary positional numeration system and the dyadic system. Many civilizations have used the binary system in some form, including inhabitants of Australia, Polynesia, South America, and Africa. Ancient Egyptian arithmetic depended on the binary system. Records of Chinese mathematics trace the binary system back to the fifth century and possibly earlier. The Chinese were probably the first to appreciate the simplicity of noting integers as sums of powers of 2, with each coefficient being 0 or 1. For example, the number 10 would be written as 1010: 10= 1 x 23 + 0 x 22 + 1 x 21 + 0 x 20 Users of the binary system face something of a trade-off. The two-digit system has a basic purity that makes it suitable for solving problems of modern technology. However, the process of writing out binary numbers and using them in mathematical computation is long and cumbersome, making it impractical to use binary numbers for everyday calculations. There are no shortcuts for converting a number from the commonly used denary scale (base ten) to the binary scale. Over the years, several prominent mathematicians have recognized the potential of the binary system. Francis Bacon (1561-1626) invented a bilateral alphabet code, a binary system that used the symbols A and B rather than 0 and 1. In his philosophical work, The Advancement of Learning, Bacon used his binary system to develop ciphers and codes. These studies laid the foundation for what was to become word processing in the late twentieth century. The American Standard Code for Information Interchange (ASCII), adopted in 1966, accomplishes the same purpose as Bacons alphabet code. Bacons discoveries were all the more remarkable because at the time Bacon was writing, Europeans had no information about the Chinese work on binary systems. A German mathematician, Gottfried Wilhelm von Leibniz (1646-1716), learned of the binary system from Jesuit missionaries who had lived in China. Leibniz was quick to recognize the advantages of the binary system over the denary system, but he is also well known for his attempts to transfer binary thinking to theology. He speculated that the creation of the universe may have been based on a binary scale, where God, represented by the number 1, created the Universe out of nothing, represented by 0. This widely quoted analogy rests on an error, in that it is not strictly correct to equate nothing with zero. The English mathematician and logician George Boole (1815-1864) developed a system of Boolean logic that could be used to analyze any statement that could be broken down into binary form (for example, true/false, yes/no, male/female). Booles work was ignored by mathematicians for 50 years, until a graduate student at the Massachusetts Institute of Technology realized that Boolean algebra could be applied to problems of electronic circuits. Boolean logic is one of the building blocks of computer science, and computer users apply binary principles every time they conduct an electronic search. The binary system works well for computers because the mechanical and electronic relays recognize only two states of operation, such as on/off or closed/open. Operational characters 1 and 0 stand for 1 = on = closed circuit = true 0 = off = open circuit = false. The telegraph system, which relies on binary code, demonstrates the ease with which binary numbers can be translated into electrical impulses. The binary system works well with electronic machines and can also aid in encrypting messages. Calculating machines using base two convert decimal numbers to binary form, then take the process back again, from binary to decimal. The binary system, once dismissed as primitive, is thus central to the development of computer science and many forms of electronics. Many important tools of communication, including the typewriter, cathode ray tube, telegraph, and transistor, could not have been developed without the work of Bacon and Boole. Contemporary applications of binary numerals include statistical investigations and probability studies. Mathematicians and everyday citizens use the binary system to explain strategy, prove mathematical theorems, and solve puzzles. Basic Concepts behind the Binary System To understand binary numbers, begin by remembering basic school math. When we were first taught about numbers, we learnt that, in the decimal system, things are categorised into columns: H | T | O 1 | 9 | 3 such that H is the hundreds column, T is the tens column, and O is the ones column. So the number 193 is 1-hundreds plus 9-tens plus 3-ones. Afterwards we learnt that the ones column meant 10^0, the tens column meant 10^1, the hundreds column 10^2 and so on, such that 10^2|10^1|10^0 1 | 9 | 3 The number 193 is really {(1*10^2) + (9*10^1) + (3*10^0)}. We know that the decimal system uses the digits 0-9 to represent numbers. If we wished to put a larger number in column 10^n (e.g., 10), we would have to multiply 10*10^n, which would give 10 ^ (n+1), and be carried a column to the left. For example, if we put ten in the 10^0 column, it is impossible, so we put a 1 in the 10^1 column, and a 0 in the 10^0 column, therefore using two columns. Twelve would be 12*10^0, or 10^0(10+2), or 10^1+2*10^0, which also uses an additional column to the left (12). The binary system works under the exact same principles as the decimal system, only it operates in base 2 rather than base 10. In other words, instead of columns being 10^2|10^1|10^0 They are, 2^2|2^1|2^0 Instead of using the digits 0-9, we only use 0-1 (again, if we used anything larger it would be like multiplying 2*2^n and getting 2^n+1, which would not fit in the 2^n column. Therefore, it would shift you one column to the left. For example, 3 in binary cannot be put into one column. The first column we fill is the right-most column, which is 2^0, or 1. Since 3>1, we need to use an extra column to the left, and indicate it as 11 in binary (1*2^1) + (1*2^0). Binary Addition Consider the addition of decimal numbers: 23 +48 ___ We begin by adding 3+8=11. Since 11 is greater than 10, a one is put into the 10s column (carried), and a 1 is recorded in the ones column of the sum. Next, add {(2+4) +1} (the one is from the carry) = 7, which is put in the 10s column of the sum. Thus, the answer is 71. Binary addition works on the same principle, but the numerals are different. Begin with one-bit binary addition: 0 0 1 +0 +1 +0 ___ ___ ___ 0 1 1 1+1 carries us into the next column. In decimal form, 1+1=2. In binary, any digit higher than 1 puts us a column to the left (as would 10 in decimal notation). The decimal number 2 is written in binary notation as 10 (1*2^1)+(0*2^0). Record the 0 in the ones column, and carry the 1 to the twos column to get an answer of 10. In our vertical notation, 1 +1 ___ 10 The process is the same for multiple-bit binary numbers: 1010 +1111 ______ Step one: Column 2^0: 0+1=1. Record the 1.   Temporary Result: 1; Carry: 0 Step two: Column 2^1: 1+1=10.   Record the 0 carry the 1. Temporary Result: 01; Carry: 1 Step three: Column 2^2: 1+0=1 Add 1 from carry: 1+1=10.   Record the 0, carry the 1. Temporary Result: 001; Carry: 1 Step four: Column 2^3: 1+1=10. Add 1 from carry: 10+1=11. Record the 11.   Final result: 11001 Alternately: 11 (carry) 1010 +1111 ______ 11001 Always remember 0+0=0 1+0=1 1+1=10 Try a few examples of binary addition: 111 101 111 +110 +111 +111 ______ _____ _____ 1101 1100 1110 Binary Multiplication Multiplication in the binary system works the same way as in the decimal system: 1*1=1 1*0=0 0*1=0 101 * 11 ____ 101 1010 _____ 1111 Note that multiplying by two is extremely easy. To multiply by two, just add a 0 on the end. Binary Division Follow the same rules as in decimal division. For the sake of simplicity, throw away the remainder. For Example: 111011/11 10011 r 10 _______ 11)111011 -11 ______ 101 -11 ______ 101 11 ______ 10 Decimal to Binary Converting from decimal to binary notation is slightly more difficult conceptually, but can easily be done once you know how through the use of algorithms. Begin by thinking of a few examples. We can easily see that the number 3= 2+1. and that this is equivalent to (1*2^1)+(1*2^0). This translates into putting a 1 in the 2^1 column and a 1 in the 2^0 column, to get 11. Almost as intuitive is the number 5: it is obviously 4+1, which is the same as saying [(2*2) +1], or 2^2+1. This can also be written as [(1*2^2)+(1*2^0)]. Looking at this in columns, 2^2 | 2^1 | 2^0 1 0 1 or 101. What were doing here is finding the largest power of two within the number (2^2=4 is the largest power of 2 in 5), subtracting that from the number (5-4=1), and finding the largest power of 2 in the remainder (2^0=1 is the largest power of 2 in 1). Then we just put this into columns. This process continues until we have a remainder of 0. Lets take a look at how it works. We know that: 2^0=1 2^1=2 2^2=4 2^3=8 2^4=16 2^5=32 2^6=64 2^7=128 and so on. To convert the decimal number 75 to binary, we would find the largest power of 2 less than 75, which is 64. Thus, we would put a 1 in the 2^6 column, and subtract 64 from 75, giving us 11. The largest power of 2 in 11 is 8, or 2^3. Put 1 in the 2^3 column, and 0 in 2^4 and 2^5. Subtract 8 from 11 to get 3. Put 1 in the 2^1 column, 0 in 2^2, and subtract 2 from 3. Were left with 1, which goes in 2^0, and we subtract one to get zero. Thus, our number is 1001011. Making this algorithm a bit more formal gives us: Let D=number we wish to convert from decimal to binary Repeat until D=0 a. Find the largest power of two in D. Let this equal P. b. Put a 1 in binary column P. c. Subtract P from D. Put zeros in all columns which dont have ones. This algorithm is a bit awkward. Particularly step 3, filling in the zeros. Therefore, we should rewrite it such that we ascertain the value of each column individually, putting in 0s and 1s as we go: Let D= the number we wish to convert from decimal to binary Find P, such that 2^P is the largest power of two smaller than D. Repeat until P If 2^P put 1 into column P subtract 2^P from D Else put 0 into column P End if Subtract 1 from P Now that we have an algorithm, we can use it to convert numbers from decimal to binary relatively painlessly. Lets try the number D=55. Our first step is to find P. We know that 2^4=16, 2^5=32, and 2^6=64. Therefore, P=5. 2^5 Subtracting 55-32 leaves us with 23. Subtracting 1 from P gives us 4. Following step 3 again, 2^4 Next, subtract 16 from 23, to get 7. Subtract 1 from P gives us 3. 2^3>7, so we put a 0 in the 2^3 column:  110 Next, subtract 1 from P, which gives us 2. 2^2 Subtract 4 from 7 to get 3. Subtract 1 from P to get 1. 2^1 Subtract 2 from 3 to get 1. Subtract 1 from P to get 0. 2^0 Subtract 1 from 1 to get 0. Subtract 1 from P to get -1. P is now less than zero, so we stop. Another algorithm for converting decimal to binary However, this is not the only approach possible. We can start at the right, rather than the left. All binary numbers are in the form a[n]*2^n + a[n-1]*2^(n-1)++a[1]*2^1 + a[0]*2^0 where each a[i] is either a 1 or a 0 (the only possible digits for the binary system). The only way a number can be odd is if it has a 1 in the 2^0 column, because all powers of two greater than 0 are even numbers (2, 4, 8, 16). This gives us the rightmost digit as a starting point. Now we need to do the remaining digits. One idea is to shift them. It is also easy to see that multiplying and dividing by 2 shifts everything by one column: two in binary is 10, or (1*2^1). Dividing (1*2^1) by 2 gives us (1*2^0), or just a 1 in binary. Similarly, multiplying by 2 shifts in the other direction: (1*2^1)*2=(1*2^2) or 10 in binary. Therefore {a[n]*2^n + a[n-1]*2^(n-1) + + a[1]*2^1 + a[0]*2^0}/2 is equal to a[n]*2^(n-1) + a[n-1]*2^(n-2) + + a[1]2^0 Lets look at how this can help us convert from decimal to binary. Take the number 163. We know that since it is odd, there must be a 1 in the 2^0 column (a[0]=1). We also know that it equals 162+1. If we put the 1 in the 2^0 column, we have 162 left, and have to decide how to translate the remaining digits. Twos column: Dividing 162 by 2 gives 81. The number 81 in binary would also have a 1 in the 2^0 column. Since we divided the number by two, we took out one power of two. Similarly, the statement a[n-1]*2^(n-1) + a[n-2]*2^(n-2) + + a[1]*2^0 has a power of two removed. Our new 2^0 column now contains a1. We learned earlier that there is a 1 in the 2^0 column if the number is odd. Since 81 is odd, a[1]=1. Practically, we can simply keep a running total, which now stands at 11 (a[1]=1 and a[0]=1). Also note that a1 is essentially multiplied again by two just by putting it in front of a[0], so it is automatically fit into the correct column. Fours column: Now we can subtract 1 from 81 to see what remainder we still must place (80). Dividing 80 by 2 gives 40. Therefore, there must be a 0 in the 4s column, (because what we are actually placing is a 2^0 column, and the number is not odd). Eights column: We can divide by two again to get 20. This is even, so we put a 0 in the 8s column. Our running total now stands at a[3]=0, a[2]=0, a[1]=1, and a[0]=1. Negation in the Binary System Signed Magnitude Ones Complement Twos Complement Excess 2^(m-1) These techniques work well for non-negative integers, but how do we indicate negative numbers in the binary system? Before we investigate negative numbers, we note that the computer uses a fixed number of bits or binary digits. An 8-bit number is 8 digits long. For this section, we will work with 8 bits. Signed Magnitude: The simplest way to indicate negation is signed magnitude. In signed magnitude, the left-most bit is not actually part of the number, but is just the equivalent of a +/- sign. 0 indicates that the number is positive, 1 indicates negative. In 8 bits, 00001100 would be 12 (break this down into (1*2^3) + (1*2^2) ). To indicate -12, we would simply put a 1 rather than a 0 as the first bit: 10001100. Ones Complement: In ones complement, positive numbers are represented as usual in regular binary. However, negative numbers are represented differently. To negate a number, replace all zeros with ones, and ones with zeros flip the bits. Thus, 12 would be 00001100, and -12 would be 11110011. As in signed magnitude, the leftmost bit indicates the sign (1 is negative, 0 is positive). To compute the value of a negative number, flip the bits and translate as before. Twos Complement: Begin with the number in ones complement. Add 1 if the number is negative. Twelve would be represented as 00001100, and -12 as 11110100. To verify this, lets subtract 1 from 11110100, to get 11110011. If we flip the bits, we get 00001100, or 12 in decimal. In this notation, m indicates the total number of bits. For us (working with 8 bits), it would be excess 2^7. To represent a number (positive or negative) in excess 2^7, begin by taking the number in regular binary representation. Then add 2^7 (=128) to that number. For example, 7 would be 128 + 7=135, or 2^7+2^2+2^1+2^0, and, in binary, 10000111. We would represent -7 as 128-7=121, and, in binary, 01111001. Note: Unless you know which representation has been used, you cannot figure out the value of a number. A number in excess 2 ^ (m-1) is the same as that number in twos complement with the leftmost bit flipped. To see the advantages and disadvantages of each method, lets try working with them. Using the regular algorithm for binary addition, add (5+12), (-5+12), (-12+-5), and (12+-12) in each system. Then convert back to decimal numbers. APPLICATIONS OF BINARY NUMBER SYSTEM The binary number system, also called the  base-2  number system, is a method of representing numbers that counts by using combinations of only two numerals: zero (0) and one (1). Computers use the binary number system to manipulate and store all of their data including numbers, words, videos, graphics, and music. The term bit, the smallest unit of digital technology, stands for Binary digit. A byte is a group of eight bits. A kilobyte is 1,024 bytes or 8,192 bits. Using binary numbers, 1 + 1 = 10 because 2 does not exist in this system. A different number system, the commonly used decimal or  base-10  number system, counts by using 10 digits (0,1,2,3,4,5,6,7,8,9) so 1 + 1 = 2 and 7 + 7 = 14. Another number system used by computer programmers is hexadecimal system,  base-16  , which uses 16 symbols (0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F), so 1 + 1 = 2 and 7 + 7 = E. Base-10 and base-16 number systems are more compact than the binary system. Programmers use the hexadecimal number system as a convenient, more compact way to represent binary numbers because it is very easy to convert from binary to hexadecimal and vice versa. It is more difficult to convert from binary to decimal and from decimal to binary. The advantage of the binary system is its simplicity. A computing device can be created out of anything that has a series of switches, each of which can alternate between an on position and an off position. These switches can be electronic, biological, or mechanical, as long as they can be moved on command from one position to the other. Most computers have electronic switches. When a switch is on it represents the value of one, and when the switch is off it represents the value of zero. Digital devices perform mathematical operations by turning binary switches on and off. The faster the computer can turn the switches on and off, the faster it can perform its calculations. Binary Decimal Hexadecimal Number Number Number System System System 0 0 0 1 1 1 10 2 2 11 3 3 100 4 4 101 5 5 110 6 6 111 7 7 1000 8 8 1001 9 9 1010 10 A 1011 11 B 1100 12 C 1101 13 D 1110 14 E 1111 15 F 10000 16 10 Positional Notation Each numeral in a binary number takes a value that depends on its position in the number. This is called positional notation. It is a concept that also applies to decimal numbers. For example, the decimal number 123 represents the decimal value 100 + 20 + 3. The number one represents hundreds, the number two represents tens, and the number three represents units. A mathematical formula for generating the number 123 can be created by multiplying the number in the hundreds column (1) by 100, or 102; multiplying the number in the tens column (2) by 10, or 101; multiplying the number in the units column (3) by 1, or 100; and then adding the products together. The formula is: 1  ÃƒÆ'-  102  + 2  ÃƒÆ'-  101  + 3  ÃƒÆ'-  100  = 123. This shows that each value is multiplied by the base (10) raised to increasing powers. The value of the power starts at zero and is incremented by one at each new position in the formula. This concept of positional notation also applies to binary numbers with the difference being that the base is 2. For example, to find the decimal value of the binary number 1101, the formula is 1  ÃƒÆ'-  23  + 1  ÃƒÆ'-  22  + 0  ÃƒÆ'-  21  + 1  ÃƒÆ'-  20  = 13. Binary Operations Binary numbers can be manipulated with the same familiar operations used to calculate decimal numbers, but using only zeros and ones. To add two numbers, there are only four rules to remember: Therefore, to solve the following addition problem, start in the rightmost column and add 1 + 1 = 10; write down the 0 and carry the 1. Working with each column to the left, continue adding until the problem is solved. To convert a binary number to a decimal number, each digit is multiplied by a power of two. The products are then added together. For example, to translate the binary number 11010 to decimal, the formula would be as follows: To convert a binary number to a hexadecimal number, separate the binary number into groups of four starting from the right and then translate each group into its hexadecimal equivalent. Zeros may be added to the left of the binary number to complete a group of four. For example, to translate the number 11010 to hexadecimal, the formula would be as follows: Binary Number System A Binary Number is made up of only 0s and 1s. http://www.mathsisfun.com/images/binary-number.gif This is 1ÃÆ'-8 + 1ÃÆ'-4 + 0ÃÆ'-2 + 1 + 1ÃÆ'-(1/2) + 0ÃÆ'-(1/4) + 1ÃÆ'-(1/8) (= 13.625 in Decimal) Similar to the  Decimal System, numbers can be placed to the left or right of the point, to indicate values greater than one or less than one. For Binary Numbers: 2 Different Values Because you can only have 0s or 1s, this is how you count using Binary: Decimal: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Binary: 0 1 10 11 100 101 110 111 1000 1001 1010 1011 1100 1101 1110 1111 Binary is as easy as 1, 10, 11. Here are some more equivalent values: Decimal: 20 25 30 40 50 100 200 500 Binary: 10100 11001 11110 101000 110010 1100100 11001000 111110100    How to Show that a Number is Binary To show that a number is a  binary  number, follow it with a little 2 like this:  1012 This way people wont think it is the decimal number 101 (one hundred and one). Examples: Example 1: What is 11112  in Decimal? The 1 on the left is in the 2ÃÆ'-2ÃÆ'-2 position, so that means 1ÃÆ'-2ÃÆ'-2ÃÆ'-2 (=8) The next 1 is in the 2ÃÆ'-2 position, so that means 1ÃÆ'-2ÃÆ'-2 (=4) The next 1 is in the 2 position, so that means 1ÃÆ'-2 (=2) The last 1 is in the units position, so that means 1 Answer: 1111 = 8+4+2+1 = 15 in Decimal Example 2: What is 10012  in Decimal? The 1 on the left is in the 2ÃÆ'-2ÃÆ'-2 position, so that means 1ÃÆ'-2ÃÆ'-2ÃÆ'-2 (=8) The 0 is in the 2ÃÆ'-2 position, so that means 0ÃÆ'-2ÃÆ'-2 (=0) The next 0 is in the 2 position, so that means 0ÃÆ'-2 (=0) The last 1 is in the units position, so that means 1 Answer: 1001 = 8+0+0+1 = 9 in Decimal Example 3: What is 1.12  in Decimal? The 1 on the left side is in the units position, so that means 1. The 1 on the right side is in the halves position, so that means 1ÃÆ'-(1/2) So, 1.1 is 1 and 1 half = 1.5 in Decimal Example 4: What is 10.112  in Decimal? The 1 is in the 2 position, so that means 1ÃÆ'-2 (=2) The 0 is in the units position, so that means 0 The 1 on the right of the point is in the halves position, so that means 1ÃÆ'-(1/2) The last 1 on the right side is in the quarters position, so that means 1ÃÆ'-(1/4) So, 10.11 is 2+0+1/2+1/4 = 2.75 in Decimal

AI and American History :: essays research papers

â€Å"Artificial Intelligence And America†   Ã‚  Ã‚  Ã‚  Ã‚   Artificial Intelligence played a crucial role in our American history and the history of the world. Some view it as the vain pursuit of man to become god-like and create life, others, as the next logical step in computer technology. However, the conclusion is not nearly the most important part of it. The process of the pursuit of the creation of mechanical sentient life has also led to a much deeper understanding of how our own biological minds work, creating new methods to treat brain diseases, and other brain related disorders. Through this, life is longer sustained, but modern life itself would not exist without some AI programs today. Several AI programs control the stock market, and the military has countless uses for it, and we even rely on it at home. AI has advanced greatly since it began, bringing neurology with it, and modern America could not function today without it. ‘Computers are nothing to be afraid of’. An idea clung to like a religion by IBM promotional people in the late 1970’s. That’s when the first AI programs were being produced and the public became concerned over basically, whether or not computers would take over the world. IBM raced to put the public’s fears to rest, so they created an ad-campaign. Pretty soon, every salesperson for IBM was parroting the phrase: â€Å"Computers are nothing but quick morons†. This seemed to halt the fears of the public, but as long as AI research progressed, the uneasiness continued. Computers can process information at speeds thousands of times faster then the human brain, but can only do as they are instructed. So, what happens when there instructed to learn from their mistakes, or react with their surroundings? What constitutes intelligence? The earliest attempts at AI were at making computers sentient, based on the theory that something must be alive to have intelligence. Needless to say, this didn’t work out and left many disappointed investors and researchers alike. Later on though, scientists found that the problem early AI developers had been that they tried to take too big of a step. They believed if they could just create qualities of intelligence in a machine and the rest will stem from there. One of the major off products in artificial intelligence was the further study our own brains. The theory is that if we can make a machine that can accomplish and display the process behind a complex human task, then we can be shown how we work by our own creation.

Challenges Are Increasing For Rural Land Users Environmental Sciences Essay

About one fifth of the universe ‘s population live in absolute poorness, each populating on less than one US dollar a twenty-four hours ( Jess, 2000 ) . Rural land-users in many developing countries are confronting increasing challenges in their daily lives ( Francis, 2000 ) . Climate alteration can convey both positive and negative impacts on different land users through exposing husbandmans and rural families to new and unfamiliar conditions ( Osbahr et al. , 2008 ) . These hazards and impacts of clime alteration around the universe are progressively recognised as important factors associating to nutrient security, poverty-reduction and sustainable development ( Osbahr et al. , 2008 ) . A support comprises of people, their capablenesss and their agencies of life, including nutrient income and assets ( Chambers and Conway, 1991 ) . Livelihoods go environmentally sustainable when they maintain or heighten the local and planetary assets on which they depend on, which has benefit effects for others and their supports ( Chambers and Conway, 1991 ) . This essay will discourse how climate alteration can impact people ‘s life styles in rural communities and how rural communities can go more sustainable. It will so travel onto talk about how exposure is increased and/or decreased when clime is changed. This essay will concentrate on countries within Asia and Africa who are thought to be the most vulnerable to the impacts of clime variableness and alteration ( Challinor et al. , 2007 ) . Asia and Africa were chosen as instance surveies as agribusiness plays a dominant function in back uping rural supports and economic growing ( Challinor et al. , 2007 ) . ( Singh, 2010 ) states that: â€Å" A support comprises the capablenesss, assets ( including both stuff and societal resources ) and activities require by the agencies of life. A support is sustainable when it can get by with and retrieve from emphasiss and dazes and maintain or heighten its capablenesss and assets both now and in the hereafter, while non sabotaging the natural resource base † . Majority of old surveies have shown a negative impact relationship between clime alteration and harvest productiveness in Africa and Asia ( Challinor et al. , 2007 ) . Over 850 million people in the universe are undernourished. It is hence of import to guarantee that the new attacks contribute to improved agricultural productiveness and that they help increase the hapless people ‘s entree to nutrient. A figure of factors lead to impairment, within rural supports. Expansion of agribusiness combined with unsustainable and natural resource direction practises such as over graze, over cultivation, nutrition inputs, hapless irrigation practises and deforestation, frequently induced by population force per unit area and break of societal systems cause this decay ( Ziervogel and Calder, 2003 ) . For rural supports to go genuinely sustainable, it is non adequate for little husbandmans to bring forth merely plenty nutrient for place ingestion as the costs for production in a smaller far m are similar to that of a larger commercial farm ( Pretty et al. , 2003 ) . About a 3rd of the universe ‘s population lives in countries where fresh H2O is scarce or difficult to acquire because of hapless substructure. This job is quickly acquiring worse for deficiency of the political will and concerted attempt needed to accomplish sustainable direction of the universe ‘s finite H2O supplies. Poorer people are most at hazard of clime alteration dazes and there are a scope of poverty-related clime alteration impacts, including decrease of harvest outputs due to a lessening in H2O handiness, major impacts on nutrient security, employment, income and economic growing, a immense supplanting of people and the exposure of 1000000s of people to wellness hazard ( Schnoor, 2007 ) . Climate alteration will worsen the looming H2O crisis, as lifting temperatures and more fickle rainfall in many parts drive up demand for irrigation ( Pretty et al. , 2003 ) . Together, H2O scarceness and clime alteration will present great adversity for many people in many w ays. But most ruinous of all are the expected impacts on planetary capacity to bring forth adequate nutrient. Within 40 old ages, the universe will hold another 2.5 billion people to feed, most of them in developing states. Given that one liter of H2O is used to bring forth one Calorie of nutrient, it will take up to 6,000 three-dimensional kilometers of extra H2O yearly – about twice the sum used for nutrient production today – to feed those people 2,500 Calories daily ( Pretty et al. , 2003 ) . The lone solution is to do agricultural usage of H2O far more productive and efficient than it is today. Two ways of making this are, foremost, to renovate old and ignored irrigation systems and, 2nd, better rain fed agribusiness through better dirt direction and expanded usage of H2O harvest home and auxiliary irrigation. New higher giving harvest assortments that tolerate utmost conditions, like drouth and implosion therapy, can besides assist ( Schild, 2010 ) . Eradication of utmost poorness and hungriness is among the eight Millennium Development Goals ( MDGs ) for sustainable development ( Haile, 2005 ) . Food security means entree to alimentary nutrient through direct nutrient production by the agriculture family and/or through increased ability to buy ( economic entree ) a assortment of nutrients from household income. Infertile dirts are a major cause of poorness and hungriness Africa ( Haile, 2005 ) stemming from bad agriculture patterns. He farther stressed that hapless agriculture patterns deplete dirt of basic foods needed by harvests and deplete dirt organic affair and water-holding capacity, which can finally decreased output in more than 75 % of farming area. Increased quality of natural capital, the land, leads to increased nutrient and income security, which are requirements for family wellness security ( Peters, 2006 ) . This implies that families with secure nutrient and income can afford medical and balanced diet disbursals for family members. In add-on, increased households income contributes to buying power for alimentary nutrients non produced on the farm. Conservation of H2O, through infiltration into the dirt, contributes to protection of the quality of H2O beginnings, which indirectly contributes to a decrease in wellness hazards that arise from the waterborne diseases ( Peters, 2002 ) . Figure: Analytic and intervention conceptual model for development of incorporate and sustainable direction of natural capital ( Malley et al. , 2009 ) Rural families in Africa and Asia tend to trust a great trade on climate-sensitive resources such as local H2O supplies and agricultural land. These climate-sensitive activities such as cultivable agriculture and farm animal farmings along with natural resources such as fuel wood and wild herbs are what they dependant on for mundane lives ( Haile, 2005 ) . Climate alteration can cut down the handiness of these local natural resources, restricting the options for rural families that depend on natural resources for ingestion or trade ( Haile, 2005 ) . In many developing states nutrient production has non kept up with population growing. Pressure on bing cultivated land in China has led to dirty exhaustion and eroding, doing an addition dependence in external fertilizers and pesticides to keep production in more intensive, sawed-off rotary motion systems ( Crucefix, 1998 ) . The productiveness of land, incomes and the coherence of society are closely linked in rural communities anyplace around the universe. Where land becomes unproductive, rural depopulation occurs which may farther worsen productiveness and change the gender and age balance of rural communities ( Crucefix, 1998 ) . Crucefix ( 1998 ) states that environmental harm seen as a consequence of agricultural actions in developing states consists of: Table: Environmental Damage Impacts in Developing States Parameter Environmental Damage Impacts Soil eroding Low productiveness, salt, H2O keeping capacity Sediment harm Reservoir siltation, increased pilotage channel siltation, inundations, addition costs of route care, habitat debasement Over irrigation Depletion of groundwater, H2O logging, salinisation Agrochemical harm Worker wellness, H2O taint, H2O choking, cost of cleansing harm Soil compression Soil productiveness, harder to cultivate Deforestation Soil eroding, harvest harm from high air currents Wetland drainage Decreased H2O purification, familial diverseness drainage Air pollution Odour, fume, H2O safety ( Crucefix, 1998 ) Africa Asia Water Frequent Droughts Frequent low H2O storage in reservoirs and lakes Frequent inundations Increase in H2O emphasis due to climate alteration and increased demand Disappearing glaciers cut down summer watercourse flow of most big rivers Increase H2O deficit during dry season Higher inundation hazard during monsoon season Increase H2O emphasis due to increase population growing Higher per capita H2O demand Agribusiness Severe impact on nutrient production and security Agribusiness will go unsustainable in semi waterless countries Increased poorness of little graduated table farms Changing seasons will do agribusiness more hard ( e.g. seeding day of the months ) Less predictable H2O handiness will do agribusiness more hard Increased clime variableness will increase the figure of harvest failures due to inundations or drouths Agricultural production probably to better where there is rainfall Likely addition of both diseases and plagues impacting both works and carnal production systems Farming production in low lying coastal countries will be affected by increased implosion therapy and salt H2O invasion Ecosystems / Biodiversity Most natural ecosystems will be affected: However impacts are ill-defined due to miss of informations Biodiversity in Highlandss of Africa threatened 25-40 % of big mammal species in National Parks will go endangered Desertification probably to increase due to combined menaces of clime alteration and unsustainable land usage Large parts of the biodiversity at hazard ; although detailed analyses are missing Forest fires have increased over the last 20years due to higher temperatures Speciess with low migration rates could go nonextant and flora zones could vanish Health Increased malaria hazard due to warmer temperatures Increased H2O borne diseases to increase drouths and inundations Higher temperatures and decreased H2O handiness can increase hazards of cholera and other diseases related to bad sanitation Frequent inundations can increase the hazard of imbibing H2O taint Higher temperatures in combination with increased wood fires and urbanization will cut down are quality and increase respiratory diseases Likely addition in malnutrition and diarrhea in poorer states Increased hazard of vector borne diseases, several diseases like Malaria will spread out into new countries which were antecedently non affected Table: Projected impacts of clime alteration in different sectors in Asiatic and African states ( Ludwig et al. , 2007 ) The tabular array above shows how climate alteration can impact parts of Asia and Africa at different degrees and different sectors. As we can see both states suffer at different graduated tables which means both continents will near sustainability otherwise. While Africa chiefly suffers drouths, Asia suffers from deluging, peculiarly in the monsoon season. Vulnerability when confronting clime alteration mirrors people ‘s marginalization within society. Climate alteration affected people who are disproportionally strained from the sections of the society which are continually marginalised in day-to-day life ( Gaillard, 2010 ) . Climate alteration has significant deductions for rural development in the Asia-Pacific part. A huge bulk of the population live in rural countries and depend to a great extent on agribusiness, forestry, piscaries, farm animal and other clime sensitive sectors ( Schild, 2010 ) . Climate alteration poses a serious menace to supports and nutrient security, every bit good as heightening hazards and exposures through the increased frequence of natural catastrophes and utmost conditions events. It has now been clearly established that clime alteration, together with an increasing demand for fresh water, will increase H2O emphasis in many Asia-Pacific states, peculiarly in South Asia. This will be critically of import to agricultural production, nutrient security, and rural development in the hereafter ( Assan et al. , 2009 ) . Increasing H2O emphasis combined with increasing uncertainness and utmost conditions events will impact nutrient production and will heighten nutrient insecurity across the full South Asiatic part. The impact of clime alteration can increase the exposure of rural supports by adversely impacting their wellness and manner of life, which therefore undermines growing chances ( Dasgupta and Baschieri, 2010 ) . One of the major impacts of clime alteration to rural communities is the hazard of deluging. Rural people are more vulnerable during high rainfall, heat moving ridges, storms and drouths. This is because there entree to communicating, safety and AID is limited compared to an urban country enduring the same events. Health is one of the chief impacts during clime induced events as there is an addition in deceases and high rates of diseases which can happen during events such as heat moving ridges. The best manner to accommodate to these kinds of issues is to hold disease surveillance and control systems, entree to better wellness installations and exigency alleviation systems. In the face of climate-related environmental alteration, such as the diminution of productive agricultural land, rural occupants may be forced to migrate in hunt of work. Migrants who find work frequently remit parts of their salary back place ( Haile, 2005 ) . Their households in the place communities may utilize the remittals to purchase replacements for goods antecedently produced or harvested from the local environm ent. For illustration, boughten nutrient may replace for nutrient antecedently grown on homestead secret plans ( Haile, 2005 ) . Global heating, will probably do possible harvest outputs in most of the African and Asiatic parts to worsen. Overall clime alteration is expected to decelerate the growing of universe nutrient production, ensuing in higher nutrient monetary values and adding force per unit area to hapless people as affordability will curtail them from purchasing such goods. Change in rainfall has had an impact on H2O beginnings and handiness, every bit good as agricultural production ( Msangi, 2007 ) . This has led to increased exposure in nutrient and H2O security, with direct impacts to wellness such as nutrition and water-borne unwellness along with poorness. In Africa, where communities have ever been vulnerable to H2O scarceness, decreased rainfall has created a desperate state of affairs for entree to H2O and production of rain-fed harvests ( Msangi, 2007 ) . In thi s part, the capriciousness of rainfall has made agricultural production, the chief beginning of income, hard and unreliable. Here H2O is more abundant and the alteration in rainfall has been debatable for agricultural production due to increased eroding and silting instead than H2O handiness. The implosion therapy in southern parts of Africa is by and large a merchandise of cyclones ( Msangi, 2007 ) . While cyclones have been debatable in Africa, the perceptual experience continues to stand those cyclones, inundations, and drouths which are all portion of a natural rhythm ( Devereux, 2007 ) and hence inundations are viewed as holding damaging effects to nutrient stocks in cyclone old ages and good effects to agricultural production in the old ages following cyclones. However, deposit ( increased by a figure of factors, deluging being one ) has been seen to hold a important negative impact on the marine environment and hence fish populations ( Eakin and Appendini, 2008 ) . Increased nutrient insecurity is the most noteworthy exposure for communities in all three parts. Traditional unfastened ridge patterns are used to increase dirt productiveness through better soil-water direction, to heighten dirt birthrate, increase harvest rooting deepness and ease organic affair incorporation ( Muchena et al. , 2005 ) . Traditional open-ridge patterns increase dirt surface raggedness, which helps to cut down dirt eroding by H2O and air current. However, husbandmans do non cultivate the unfastened ridges on contour lines, which lead to accelerated dirt, H2O and alimentary loses from the system during short heavy rainfall, making gullies along the unfastened furrows ( Muchena et al. , 2005 ) . Degradation of natural resources is a major enemy of little husbandmans in developing states. Menaces to the agro ecosystem come in many signifiers such as dirt eroding, compression, nutrition depletion, acidification, shriveling and contaminated H2O supplies, loss of flora screen, decreased biodiversity, planetary clime alteration and greater susceptibleness of harvests to plagues and diseases ( Clover and Eriksen, 2009 ) . Some of these jobs are acute and extremely seeable, while others are more chronic and elusive. Resource debasement has a major impact of rural communities as they can sabotage husbandman ‘s ability to vie in the market. Increased workss per unit country and enhanced dirt productiveness increased harvest outputs. Increased works figure is the consequence of seting cross ridges, which reduces land wastage caused by unfastened furrows ( Malley et al. , 2009 ) . Soil productiveness is the overall status necessary for optimal harvest productiveness, which includ es handiness of foods, absence of harvest toxicity, and handiness of dirt H2O ( Prowse, 2009 ) . The acquisition, development, and bringing of agricultural engineerings to smallholder husbandmans, every bit good as timely public market information to assist stabilise markets, are among the precedences of a new docket for market development in Africa ( Mignouna et al. , 2008 ) . New engineering has shown to take straight to higher incomes for local farms and landless rural families which can assist hike the local economic system. New intensive production engineerings ( including acceptance of genetically modified harvests ) can assist to increase outputs and cut down losingss cut downing the exposure of rural communities giving them a consistent beginning of income ( Mignouna et al. , 2008 ) . The chief factors which characterise a typical rural conveyance environment are low population densenesss, low degrees of economic activity ( and therefore low incomes ) , low vehicle ownership degrees ( of any description, including non-motorised vehicles ) , inferior proviso of roads ( both quality and measure ) , and near absence of regular conveyance services ( Bryceson et al. , 2008 ) . Given these hard conditions, travel still takes topographic point though at really low degrees of engagement by comparing with urban communities where vehicles are of the norm ( Plessis-Fraissard, 2007 ) . Transport development may convey in its challenge the job of environmental debasement. It is obvious that debasement is non merely an urban job, connected with the high volumes of traffic ( air pollution, noise and rupture ) . Rural route building can hold overmastering ill-effects on, for illustration, incline stableness, eroding and natural drainage forms. Of these, eroding is thought to hold the major environmental impact. Extenuation steps to command eroding can be included in the designs ( e.g. appropriate drainage channels and culverts ) every bit good as in the execution ( e.g. rapidly set uping flora on open inclines ) ( Bryceson et al. , 2003 ) . The method of execution may besides lend to cut down environmental harm ; therefore labour-based ( as opposed to heavy machinery ) operations may be better deployed due to the greater preciseness and sensitiveness of application that is possible. The indirect environmental impacts of rural conveyance development are much less easy to foretell, because they are likely to be of a long term nature ( Jacobs and Greaves, 2003 ) . Changes in land-use may ensue from the greater handiness due to improved roads and services. Roads which have been used to uncover rain woods of Africa have encouraged the development of settled agriculture communities, but at the disbursal of the autochthonal peoples ‘ supports, and at the dis bursal of the natural ecology ( Plessis-Fraissard, 2007 ) . Nevertheless, roads besides better support results through better entree to natural assets and direction of forest resources which can assist bring forth higher income and aid communities boost their supports in the long term. Figure: Cause-effect theoretical account of dirt productiveness diminution in Africa ( Malley et al. , 2009 ) Figure 2 above shows how insecurity or rural supports can alter with unsustainable land direction. To go more sustainable we must incorporate natural procedures such as alimentary rhythms, N repair, dirt regeneration and natural enemies of plagues into nutrient production procedures ( Brent and Mulder, 2005 ) . We must besides understate the usage of non-renewable resources inputs such as coal, Diesel and wood which mostly damage the environment and harm the wellness of husbandmans ( Pretty et al. , 2003 ) . Valuable usage of cognition and accomplishments of local husbandmans can besides be good as it can assist better ego trust and replacing human capital for dearly-won inputs, can assist cut down outgo which can be spent on other points. Poor rural communities must besides work together to reply basic agricultural and natural resource jobs such as the decrease of plagues, watershed, and cutting back irrigation, or utilizing different H2O systems which uses H2O in a more sustainable mode ( Schild, 2010 ) . Improvements in the efficiency of H2O usage can profit both irrigated and rain Federal husbandmans by leting new or once debauched lands to be brought under agriculture, and to increase cropping strength on bing lands ( Pretty et al. , 2003 ) . Intensification boosts the productiveness of land and labor, through higher harvest outputs, better on-farm food cycling and more effectual plague control. Fragile environments, upon which hapless husbandmans depend on for life, require particular attending. Areas such as hill inclines can be really productive if they are cultivated good and decently managed. Previous surveies have shown that improved H2O keeping has resulted in H2O tabular arraies by lifting approximately 1m over 3 to 4 old ages, in some topographic points around Africa ( Martin, 2004 ) . This shows that husbandmans can go more productive as they are now able to works a excess harvest in, doing an unproductive season into a productive season ( Pretty et al. , 2003 ) . In topographic points such as Sub Saharan Africa, H2O harvest home is besides transforming bare lands. This method is ideal as it is non to complex and dearly-won, which means husbandmans will greatly profit from this type of engineering ( Pretty et al. , 2003 ) . Successful rainwater reaping techniques have improved H2O infiltration, reduced run-off and increased H2O keeping capacities of dirts ( Challinor et al. , 2007 ) . Agroforestry has besides been an attack which has become well-liked in rural countries. Agroforestry is an incorporate method of utilizing the synergistic benefits from uniting trees and bushs with harvests and/or farm animal. It combines agricultural and forestry engineerings to make more diverse, productive, profitable, healthy and sustainable land-use systems ( Leakey et al. , 2005 ) . An of import support plus for the sweetening of sustainability of supports is societal capital. Social capital comprise of societal relationships in webs wit h shared norms, values and understanding that facilitate cooperation within or among group. Basic beginnings of societal capital root from three types of connexion: bonding, bridging and linking ( Bebbington, 1997 ) . A diminution in the quality of natural capital assets leads to scarcenesss for supports of people who depend on them ( Bebbington, 1999 ) . When resources scarcenesss occur, societal struggle over scarce resources emerges and tends to escalate among members of a community and between communities utilizing the resources ( Paavola, 2008 ) . This implies that sustainable direction of the quality of natural capital assets contributes to bar of societal struggles and enhances societal security, an plus necessary for secured supports. Improved societal dealingss provided capital for development of improved incorporate ridge cultivated land patterns and farther inspired local invention, such as usage of Big Dippers for the improved incorporate ridge cultivated land system. Re cognition and regard for local cognition, accomplishments, patterns and advanced capacities by professionals and governments improves societal dealingss in the development procedure and leads to societal security ( Bebbington, 1997 ) . This suggests that valuing locally available human capital assets such cognition, accomplishments, experience and patterns in bing support systems is a necessary starting point for societal security and development of improved engineerings, inventions, systems and patterns for sustainable development ( Paavola, 2008 ) . Agribusiness remains the anchor of many African economic systems, stand foring about 57 % of entire employment and 17 % of the gross domestic merchandise ( Greed, 2004 ) . Africa is the lone part of the universe where per capita nutrient grain end product has declined over the past four decennaries, necessitating the continent to import 25 % of its nutrient grain demands. Farm inputs, such as chemical fertilisers and pesticides, are prohibitively expensive and, where used, carry attendant homo and environmental wellness concerns as a consequence of toxic condition and pollution ( Bryan et al. , 2009 ) . A secure environment is necessary for human security and sustainable development. Environmental security is when the ecosystem and environment are able to back up a healthy chase of life, autonomy and felicity by present and future coevalss ( Greed, 2004 ) . This means that environmental security has positive effects on support security today and in the hereafter. Increased dirt and H 2O preservation, organic C and dirt birthrate are positive results of more sustainable usage and direction of natural capital for secured rural supports. Infiltration of H2O into the dirt prevents losingss of dirt, H2O and foods ( Greed, 2004 ) . Losingss are the procedures through which quality of the natural capital, the land, is depleted. Furthermore, infiltrated H2O serves as a beginning of belowground H2O available for harvests use during H2O emphasis. Sustainability can be improved by incorporating ridge cultivated land patterns which can cut down harvest H2O emphasis in periods of drawn-out non-rainfall. This implies that ridge cultivated land pattern is of import in dirt H2O direction. First, when there is extra H2O, it drains into basins/furrows ; 2nd, when there is moisture emphasis, conserved H2O in the undersoil supports works growing through capillary motion to the root zone ; and 3rd, integrated organic residues in the dirt addition humus, which, in bend, improves dirt H2O and alimentary keeping capacity ( Clover and Eriksen, 2009 ) . Humus can be indispensable for increasing dirt wet and foods keeping and heightening the buffering capacity of the dirt ( Bryan et al. , 2009 ) . Previous surveies have shown that, humus can keep four to five times more available H2O than mineral dirts. Increases in dirt organic C and foods build up under improved incorporate ridge cultivated land patterns, taking to increased security of natural capital, which has deductions for overall security of the production environment and rural family supports ( Bryan et al. , 2009 ) . Soil wellness is cardinal for agricultural sustainability, yet is under widespread menace from debasement procedures. Agricultural sustainability starts with the dirt by seeking both to cut down dirt eroding and to do betterments to dirty physical construction, organic affair content, water-holding capacity and alimentary balances ( Pretty et al. , 2003 ) . Soil wellness is improved through th e usage of leguminous plants, green manures and screen harvests, incorporation of workss with the capacity to let go of phosphate from the dirt into rotary motions, usage of composts and animate being manures, acceptance of zero-tillage, and usage of inorganic fertilizers where needed ( Zhen et al. , 2006 ) . Biomass to dirty well improves dirt organic affair content, and has helped to increase cereal productiveness for some 45,000 households in Guatemala, Honduras and Nicaragua ( Muchena et al. , 2005 ) . Table: Potential Benefits of Sustainable Agribusiness Potential Benefits of Sustainable Agribusiness Parameter Agribusiness Environment Social Conditionss Economic Conditionss Organisational/institutional ( After Crucefix, 1998 ) While clime alteration has been presenting dangerous challenges, it has besides formed new chances for rural supports through improved direction of natural ecosystems and their services. Rural development continues to be a very critical precedence for the full Asia and Africa part as they are one of the major suppliers of nutrient. The rural sector will stay the most of import sector for back uping bulk of people in both Asia and Africa, even with the addition in rapid urbanization. Knowledge and information sharing within the communities and obtaining cognition from other beginnings, about sustainable agriculture practises, natural catastrophes and climatic events, can assist construct the resiliency to local rural supports and communities to climate alteration. Migration is one of many endurance schemes besides used by rural families in times of environmental emphasis. Other survival schemes include utilizing nutrient militias, seeking local nonfarm employment, selling farm animal, borrowing nutrient, or selling family and farm equipment. Still, one time these support options are exhausted, people frequently migrate to a new country. Increased agricultural sustainability can besides be complementary to betterments in rural people ‘s supports. It can present additions in nutrient production at comparatively low cost, plus contribute to other of import maps such as sustainable H2O use and dirt eroding decrease. If these attacks are widely adopted, they would do a important impact on rural people ‘s supports, every bit good as on local and regional nutrient security. Bettering agricultural sustainability clearly will non reply the full inquiry, but advancement from recent old ages can hold the sustainability of present and future supports. With farther support, peculiarly through international, national and local policy reforms, the benefits to nutrient security and aid, development to natural, societal and human capital will assist increase the figu re of husbandmans and rural people in the hereafter. Adaption and extenuation schemes should assist cut down poorness and at the same clip must profit the most vulnerable communities without harming the environment. Notifying supports about clime alteration impacts, exposure forms, get bying and adaptative capacity every bit good as easing location precise adaptation and extenuation practises are of cardinal concern within Africa and Asia.

Supralinga essays

Supralinga essays The most basic form of art is music. Before man learned to use berries to paint on walls, he probably learned to make noises on the various objects around him. The instinct to make pleasurable noises is evidenced today by children, worldwide, banging away on various objects. Surely some prehistoric person noticed the various timbre of each object and began to strike them in a fashion which elicited some sort of emotion, whatever he was experiencing at the time. The same basic structures in that original music are fairly evident in the drums of Africa. They have continued in their music traditions for hundreds of years, continuing to produce emotionally charged percussion-driven music. While many people know that Mickey Hart was the drummer for the Grateful Dead, he is also well known (outside of the western world) for his efforts to record and preserve various tribal music. He is also notorious for his side project, Planet Drum, which is a collaboration of various African drummers playing music. These artists won a Grammy in 1996 (in the World Music category) for their first release which is self-titled. This album, "Supralingua" is somewhat of a continuation of their first recording; it is slightly different, incorporating various chants into the songs. It also incorporates some aboriginal instruments as well, namely the Didjeridu. With this album's emphasis on percussion, it appears (on the surface) very basic in nature. Upon listening, however, a new environment is opened up to the western listener. The music is rich and contains a trance element used and used for centuries by medicine men and shamen and even in modern "electronica" music. It is this element that I find especially appealing. While Mickey Hart is a westerner, he is the only one featured on a regular basis. This album, while very different in nature in comparison to much of the "music" littering popular radio today, appe ...

Keep Struggling Students Working with These Strategies

Keep Struggling Students Working with These Strategies As a teacher, there is nothing more challenging than trying to help out a struggling student. It can become quite difficult and oftentimes you are left feeling helpless, especially when everything that you have tried doesnt seem to work. Sometimes, it may seem like the easiest thing to do is to just give the student the answer and be done with it, you do have about twenty other kids to attend to after all. However, this is not the answer. All of your students need you to give them the tools to persevere. Here are the top 10 teaching strategies to help your struggling students keep on going. Teach Students Perseverance In order to succeed in anything in life, you have to work hard. Students who are struggling in school have never been taught that when the going gets tough that they have to push through it and keep on trying until they get it. Try writing down some motivating quotes and tips on how students can persevere and hang them in the classroom for everyone to see. Do Not Give Your Students the Answer Resist the urge to give your students the answer. While this may seem like the easiest thing to it, it is not the smartest. You are the teacher and it is your job to give your students the tools they need to succeed. If you just give them the answer how are you teaching them to do it on their own? The next time you want to save time and just give your struggling student the answer, remember to give them the tool to do it on their own. Give Children Time to Think The next time that you ask a student to give you an answer try waiting an extra few minutes and see what happens. Studies have shown that teachers only wait about 1.5 seconds between when they ask a student a question, and when they ask a student to answer. If only the student would have more time, would they be able to come up with an answer? Do Not Take I Dont Know for an Answer How many times have you heard the words I dont know since you started teaching? Besides giving students more time to think, also make them come up with an answer. Then have them explain how they came to get their answer. If all the children know that it is a requirement in your classroom to come up with an answer, then you will never have to hear those dreaded words again. Give Students a Cheat Sheet Often times, struggling students have a difficult time remembering what is expected of them. To help them with this, try giving them a cheat sheet. Have them write down the directions on a sticky note and place it on their desks, or make sure to always write everything down on the board for the students who constantly need a reference. Not only will this help the students, but it will also deter a lot of them from raising their hands and asking what they have to do next. Teach Time Management Many students have a hard time with time management. This is usually because managing their time seems overwhelming, or simply because they have never been taught the skill. Try helping students with their time management skills by having them write down their daily schedule and how much time they think it takes them for each item that they listed. Then, go over their schedule with them and discuss how much time should really be spent on each task. This activity will help the student understand how managing their time is essential in order for them to succeed in school. Be Encouraging Most of the time students that struggle in the classroom, struggle because they have no confidence in themselves. Be encouraging and always tell the student that you know they can do it. Your constant encouragement may be all they need to persevere. Teach Students to Move On When a child gets stuck on a problem or a question, their first reaction is usually to raise their hand and ask for help. While this is an okay thing to do, it should not be their first thing to do. Their first reaction should be to try and figure it out on their own, then their second thought should be to ask a neighbor, and their final thought should be to raise their hand and ask the teacher. The problem is, you have to teach the students to do this and make it a requirement that they follow. For example, if a student is stuck on a word when reading, have them use the word attack strategy where they look at the picture for help, try to stretch the word out or chunk it, or skip the word and come back to it. Students need to use the tool of moving on and trying to figure it out themselves before asking for help from the teacher. Promote Cognitive Thinking Encourage students to use their thinking caps. This means that when you ask them a question, they should really take the time to think about their answer. This also means that you as the teacher need to come up with some innovative questions that really make the students think. Teach Students to Slow Down Teach students to take it one task at a time. Sometimes students will find it easier to complete the task when they break it apart into smaller, simplest tasks. Once they complete the first part of the task then they can move on to the next part of the assignment, and so on. By taking it one task at a time students will find that they will struggle less.

Effect of the Economic Recession Research Paper Example | Topics and Well Written Essays - 500 words

Effect of the Economic Recession - Research Paper Example Many experts believe that the seeds of this recession lie in the policies of the Federal Reserve Bank of America in the aftermath of the attack on world trade center. The bank feared that the terrorist attack would create a panic in the market and hence will affect U.S. economy. Fearing this, the bank decided to lower the interest rates to a record low level (Makinen, 2011). The effect of this policy was that credit was cheaply available to the people. This situation was misused by Wall Street and many banks such as Fannie Mae and Freddie Mac. What these banks did was to provide people with a very cheap loan on houses that couldn’t have been affordable otherwise. The property market was rising at the time and so huge amount of sub-prime loans were issued to the American people. The people took loans from the banks as they were confident that the rise in house prices would provide them with the money they needed for repayment of a loan. But after some time of the boom, the property market busted. The price of the houses touched a record low and so people started to default on their loans. They didn’t have money to pay back. This meant that the banks who had issued this loan were in deep cash problems. The phenomenon was so huge that first Fannie Mae and Freddie Mac filed for bankruptcy (Jicking, 2007). Next in line was Lehman Brothers which had similar problems. With Lehman Brothers filing for Chapter 11 Bankruptcy, the world was heading towards credit crunch. The banks worldwide didn’t know which bank had how many bad debts to its credit. There was suspicion all around and hence the banks were weary of giving loans to each other. When the banks withheld supply of money in the market, the businesses started to feel the heat. All these events had a ripple effect. There was a reduction in demand and because of this unemployment rates went up in the U.S.

The Rule of Law Essay Example | Topics and Well Written Essays - 1500 words

The Rule of Law - Essay Example During the last decades a lot of money has been spent trying to apply the Rule of Law in countries with undemocratic societies and in underdeveloped countries. The People’s Republic of China is one of those countries. As we can see, the Rule of Law is a very conflictive topic for a lot of people in our present society. We really think that the Rule of Law is very important in order to establish democracy and development in any country. But first let’s see what the Rule of Law is. Tom Glass defines the Rule of Law according to the following concepts: â€Å"Government decisions are made according to written law and rules; Government sanctions cannot be made up after the fact (ex post facto); Rules are applied as much as possible consistently to all; Courts provide citizens consistent, written process (due process) before life, liberty, or property is taken; Courts provide reasons based upon the law for their decisions.† Chinese people couldn’t get the ideas behind these points due to the fact of their Confucian background in which there was a heavy dependence upon the clan or the group. As the UN China puts it: â€Å"Under the philosophy that the government represents the people, internal government procedures regulated conflicts between the government and the individual, not laws.†