Debate against humans being rational.. humans are irrational Coursework

Debate against humans being rational.. humans are irrational - Coursework Example Altruisms is necessarily being counted under the voluntary giving away of one’s financial resources or acting in a way which deliberately provides benefit to the other person at the cost of their own benefit. Hence in this way, humans act irrational defying the rules of the rationality. (Jensen, 2008). The expected utility model which is essential model which is based on the rational behaviors however it is not the case in all conditions. Through anchoring people are often overly influenced by outside suggestion. People can be influenced even when they know that the suggestion is not being made by someone who is better informed. (Kahneman & Tversky, 1999). Besides Expected Utility theory also do not seem to be in conformity with the rationality. The famous experiments conducted by Tversky and Kahneman suggested a revolutionary shift from the expected utility theory and clearly suggested than we humans are not essentially rational. These experiments were: Few of the surveys conducted by Stuart Sunderland widely suggest that the irrational behavior is far more widespread and is normal than the supposed. (Sutherland, 1994). According to Sunderland there are various natural phenomenon which suggest that the man can act in irrational way. There is also a growing debate among the cognitive psychologists which suggest that we act according to the principal that differ from those we ought to follow. (Stein, 1997) There is also a phenomenon called framing effect which basically outlines that we decide differently depending on how we frame the decision based on the losses and gains. (Wang & Fischbeck, 2004) This therefore necessarily does not mean that in all situations we act rationally. We don’t always seem to be behaving according to rationality. The deviation from the rationality seems to be due to Satisficing and heuristics effects. The

Community in American History Essay Example | Topics and Well Written Essays - 1000 words

Community in American History - Essay Example The popularity of slave trade was not only limited to North American colony, but also extended to Southern colonies as well as states (Daniels 54). Daniels asserts that slave trade was a fundamental mechanism through which immigrants were brought into the NEW World, especially The United States (Daniels 54). As they were transported from Africa into the New World, particularly the United States, African slaves carried with them their African culture. The African culture fused with others, both European immigrants and immigrants who were never considered part of immigration such as Asians and Indians. Despite not having been acknowledged as part of immigration, African slaves formed crucial part of the community, where they worked in sugar plantations. As time elapsed, African slaves multiplied through birth. â€Å"At the end of the colonial period, roughly every fifth American was either an African immigrant of the descendant of one† (Daniels 55). This swelling number significantly contributed to the diverse community that has become inherent in the history of the United States. Over 10 percent of American people can accurately trace their ancestry to immigrants of African origin. Unfortunately, most historians have simply ignored the or explicitly covered black history. Historical evidence that can reveal adequate information about the history of immigrants of African origin is not in existence. African immigrants basically had no literature that could be used to document their past. However, there are modern literatures about African slaves, written by the slave merchants together with other white participants in the slave trade as well as observers. These literatures are often exaggerations and largely miss the point ab out the background African slaves. For example, Alex Haley developed a falsified literature about African past, mainly founded on a novel

Biography of William Shakespeare (1564-1616) Essay Example for Free

Biography of William Shakespeare (1564-1616) Essay In the mid-sixteenth century, William Shakespeares father, John Shakespeare, moved to the idyllic town of Stratford-upon-Avon. There, he became a successful landowner, moneylender, glove-maker, and dealer of wool and agricultural goods. In 1557, he married Mary Arden. John Shakespeare lived during a time when the middle class was expanding in both size and wealth, allowing its members more freedoms and luxuries as well as a louder voice in local government. He took advantage of the change in times and in 1557 became a member of the Stratford Council. This event marked the beginning of his illustrious political career. By 1561, he was elected one of the towns fourteen burgesses and subsequently served successively as constable, one of two chamberlains, and alderman. In these positions, he administered borough property and revenues. In 1567, he became bailiff—the highest elected office in Stratford and the equivalent of a modern-day mayor. Town records indicate that William Shakespeare was John and Marys third child. His birth is unregistered, but legend pins it on April 23, 1564, possibly because it is known that April 23 is the day on which he died 52 years later. In any event, his baptism was registered with the town on April 26, 1564. Little is known about his childhood, although it is generally assumed that he attended the local grammar school, the Kings New School. The school was staffed by Oxford-educated faculty who taught the students mathematics, natural sciences, logic, Christian ethics, and classical language and literature. Shakespeare did not attend university, which was not at all unusual for the time. University education was reserved for wealthy sons of the elite, mostly those who wanted to become clergymen. The numerous classical and literary references in Shakespeare’s plays are a testament, however, to the excellent education he received in grammar school (and to his ability as an autodidact). His early plays in particular draw on the works of Seneca and Plautus. Even more impressive than his formal education is the wealth of general knowledge exhibited in his works. His vocabulary exceeds that of any other English writer by a wide margin. In 1582, at the age of eighteen, William Shakespeare married the twenty-six-year-old Anne Hathaway. Their first daughter, Susanna, was baptized only six months later—a fact that has given rise to speculation concerning the circumstances surrounding their marriage. In 1585, Anne bore twins, baptized Hamnet and Judith Shakespeare. Hamnet died at the age of eleven, by which time Shakespeare was already a successful playwright. Around 1589, Shakespeare wrote his supposed first play, Henry VI, Part 1. Sometime between his marriage and writing this play, he moved to London, where he pursued a career as a playwright and actor. Although many records of Shakespeares life as a citizen of Stratford—including marriage and birth certificates—have survived, very little information exists about his life as a young playwright. Legend characterizes Shakespeare as a roguish young man who was once forced to flee London under suspect circumstances perhaps having to do with his love life. But the little written information we have of his early years does not necessarily confirm this characterization. In any case, young Will was not an immediate and universal success. The earliest written record of Shakespeares life in London comes from a statement by the rival playwright Robert Greene. In his Groatsworth of Witte (1592), Greene calls Shakespeare an upstart crow [who] supposes he is as well able to bombast out a blank verse as the best of you. While this is hardly high praise, it does suggest that Shakespeare rattled the London theatrical hierarchy even at the beginning of his career. It is natural, in retrospect, to attribute Greenes complaint to jealousy of Shakespeares ability, but of course we cant be sure. With Richard III, Henry VI, The Comedy of Errors, and Titus Andronicus under his belt, Shakespeare was a popular playwright by 1590. * The year 1593, however, marked a major leap forward in his career. By the end of that year, he secured a prominent patron in the Earl of Southampton and his Venus and Adonis was published. It remains one of the first of his known works to be printed and was a huge success. Next came The Rape of Lucrece. Shakespeare had also made his mark as a poet and most scholars agree that the majority of Shakespeares sonnets were probably written in the 1590s. In 1594, Shakespeare returned to the theater and became a charter member of the Lord Chamberlains Men—a group of actors who changed their name to the Kings Men when James I ascended to the throne. By 1598, he was the principal comedian for the troupe; by 1603, he was principal tragedian. He remained associated with the organization until his death. Although acting and playwriting were not considered noble professions at the time, successful and prosperous actors were relatively well respected. Shakespeare’s success left him with a fair amount of money, which he  invested in Stratford real estate. In 1597, he purchased the second largest house in Stratford—the New Place—for his parents. In 1596, Shakespeare applied for a coat of arms for his family, in effect making himself a gentleman. Consequently, his daughters made â€Å"good matches,† marrying wealthy men. The same year that he joined the Lord Chamberlains Men, Shakespeare wrote Romeo and Juliet, along with Loves Labours Lost, The Taming of the Shrew, and several other plays. Two of his greatest tragedies, Hamlet and Julius Caesar, followed around 1600. Hamlet is widely considered the first modern play for its multi-faceted main character and unprecedented depiction of his psyche. The first decade of the seventeenth century witnessed the debut performances of many of Shakespeare’s most celebrated works, including many of his so-called history plays: Othello in 1604 or 1605, Antony and Cleopatra in 1606 or 1607, and King Lear in 1608. The last play of his to be performed was probably King Henry VIII in either 1612 or 1613. William Shakespeare lived until 1616. His wife Anna died in 1623 at the age of 67. He was buried in the chancel of his church at Stratford. The lines above his tomb—allegedly written by Shakespeare himself—read: Good friend, for Jesus sake forbear To dig the dust enclosed here. Blessed be the man that spares these stones And cursed be he that moves my bones. *The dates of composition and performance of almost all of Shakespeares plays remain uncertain. The dates used in this note are widely agreed upon by scholars, but there is still significant debate around when and where he wrote most of his plays.

The Role Of Hybridization In Speciation Biology Essay

The Role Of Hybridization In Speciation Biology Essay Charles Darwin had published, The origin of species by natural selection, using his lifes discoveries and analysis to define what a species is and how species originate follow through as a contentious debate especially in the study of evolutionary biology. The study of evolution helps us to understand what species are by loosely idealizing it as alien till one feeds on their hunger to gain knowledge about what has created the world and the extant and extinct varieties that have claimed it, including man. Many different species are discussed and debated continuously, with each one being weighed by pros and cons which can also be seen as the strong point to either validate the concept or a short -fall to nullify it. The most accepted definition of current is Mayrs biological species concept, according to Coyne Orr (2004) who have accepted nine species concepts (Claridge et al, 1997). Mayrss biological species concept places the evolution of complete reproductive isolation as the focal point of the process and nature of speciation (Mayr, 2002), the biological species concept was the solid basis of which he based his belief in gene flow being absent in some species, a decreased fitness level to certain hybrids. It is believed that the emergent species would infrequently form from the process in question according to Mayr (2002). Hybrid speciation implies that hybridization has had a principal role in the origin of a new species, hybrid species that have doubled their chromosome number (Mallet, 2007), the definition applies: 50% contributions from each derived species initially contain exactly one genome from each parent, although, in older polyploids, recombination and gene conversion may eventually lead to unequal contributions (Mallet, 2007). The factor which is critical in hybrid speciation is due to being reproductively isolated with a decreased fitness-level; therefore these progeny formed are of transitional then it is more likely to be more weakly reproductively isolated. Speciation can also be influenced by hybridization by the factor of reinforcement, this means that obstacles in reference to mating because of unfit hybrids being chosen, even-though progeny from this relationship does not form from the courtship, the scenario is questionable as to whether reinforcement can be looked at as hybrid spe ciation. An example of this that can be discussed is the diploid or triploid frog Rana esculenta which is complete heterozygous for Rana lessonae and Rana ridibunda genomes (Mallet, 2007; TunnerNopp, 1979). Poly-, Allopoly- and Homoploidy, is it all just about how you do It? Plants use the means of polyploid evolution; these species are reproductively isolated due to the process of mating with diploid mates which give rise to uneven ploidies of progeny like triploids. These progeny may be able to reproduce but these progeny would cease to exist due aneuploidy (Stebbins, 1971; Grant, 1981; Ramsey Schemske, 2002) polyploidy is a simple way of creating speciation. Bisexually polypoid speciation is highly prevalent in plants as compared to animals due to: plants usually have indeterminate growth and somatic chromosome doubling can lead to germline polyploidy, germline refers to the sex cells that an organism contains which is sperm, egg and pollen in plants. Plants are often perennial or temporarily clonal which allow multigenerational persistence of hybrid cells within which polyploid mutations occur; plants are more often hermaphrodites, in rare polyploids self-fertilization allows a means of sexual reproduction (Mallet, 2007). Gene flow is weaker in pla nts as compared to animals with local populations which have unusual ploidy ( Bullini, 1994; OttoWhitton, 2000; Astaurov, 1969). Speciation can occur by the process of duplication of chromosomes within a species or duplication of hybrids (Mallet, 2005) between an autopolyploidy and allopolyploidy, respectively. Allopolyploid speciation follows self-fertilization and gives rise to a tetraploid; this can be seen from studies on Primula kewensis which was a result of Primula verticillata and Primula floribunda which had cultivated diploid hybrids. Speculation had lead to the belief that fusion of unreduced gametes had caused this due to the failure in reduction divisions during meiosis. A triploid species, known to be sterile, may add to the production of tetraploids by progeny being back-crossing triploid gametes; this was used to produce the first bisexual self-sustaining animal in a laboratory which was a polypoid strain hybrid between silk moths: Bombyx mori and Bombyx mandarina (Astaurov.B.L, 1969; Mallet.J, 2005). Homoploid hybrid speciation is well known to angiosperms, also known as flowering plants. Speciation occurs by mean of sympatry, a hybridization which requires gene flow. This is hybrids need to overcome challenges such as chromosome and gene incompatabilies with the lack of reproductive isolation, this often renders the process unlikely. There are approximately twenty plant species which are known for being a good example of homoploids however, this plant is hardly detected due to prevalence. Helianthus anomalus, Helianthus deserticola and Helianthis paradoxus are the best documented desert sunflowers which come from hybrids between mesic-adapted Helianthus annuus and Helianthus petiolaris (Buerkle et al, 2000; Gross Rieseberg, 2005; Mallet, 2007). Synthetic hybrid populations are re-created; being similar to those of wild species due to selection continuously favors combinations of compatible chromosomal rearrangements. In Helianthus recombinant genotypes and spatial separation hav e enabled the hybrids to flourish where their parents are absent (Mallet, 2005). In animals, bisexual polyploids are often excluded, the homoploid hybrids are less prominent in animals yet there is no given reason. The number in animals is growing rapidly (Dowling Secor, 1997; Gross Rieseberg, 2005). A recent example is the invasive sculpin, a hybrid fish derived from the Scheldt River (compare Cottus perifretum) and upper tributaries of the Rhine (compare Cottus rhenanum) (Mallet, 2007). Upper river tributaries of Europe have normal conditions of clear, cold waters, which make them oxygen-rich, for Sculpins. Earlier canal building became connected and these are a result of The Rhine and Scheldt rivers, but invasive sculpins appeared in the warmer water and muddier lower Rhine only in the past fifteen years. Morphologically the invasive sculpin is intermediate and its mitochondrial DNA, as well as nuclear single nucleotide polymorphisms and microsatellites, are characteristic of b oth Scheldt and Rhine forms (Mallet, 2007; Nolte et al., 2005). This provides evidence of adaptive hybrid origin hence communicating that hybrids are displaying positive selective pressure. Hybrid speciation in the animal kingdom results thus far by data based on the respective genome. The disadvantages is that many homoploid hybrids fail to be present in the parent, secondly a decreased level of being reproductively isolated, however, contributing to maintaining or expanding ecologically with latest forms (Mallet, 2007). Importance of a future Innumerable discussions and journals of speciation have stressed the importance of reproductive compatabilities and isolation that occur due to physical and geological barriers; from this essay one can see that polyploidy is more dominant in plants but found to be rare in animals. Furthermore, at the root of many animal and plant groups ancient polyploidy has been found. Genome duplications probably facilitated the evolution of complex organisms (although this is debated) (Mallet, 2007; Otto Whitton, 2000), and we can infer that successful genome duplications were mostly allopolyploid, provided that limited plant community data are reliable (Grant, 1981; Brochman et al., 2004; Mallet, 2007). In my opinion, hybridization can be viewed as an effective catalyst for speciation to occur as it creates variation as in the case of the liger, apart from mutations, which according to the Molecular Clock hypothesis, occurs at a constant rate over time. The process of natural selection includes the need for gene variety which can then be complemented with hybridization also, the compatibility of species more suitably in more noticeably growing groups; suggesting that enough suspected animal homoploid hybrid species exist. A need for in depth genomic analyses is required, it is already possible for hybrid species, like the Helianthus, which can be developed and made accessible via the laboratory or grown naturally, making it hard to find another speciation mode documented historically and can be used experimentally easily. If hybrid species can adapt to survive, showing positive selection pressure, regardless of the challenges which are faced and to survive in competition with the parent organisms by completely new adaptations then will hybridization truly demonstrate the power of evolution through the years, starting a completely new train of thought which will spark more questions hence more research into this wide unknown. The ability of hybrid species to invade hitherto unoccupied niches also means that hybridization can contribute to adaptive radiations such as African cichlid fish and Darwins finches (Mallet, 2007). Humans have come up with uses of genetically modified crops and other ways in which to manipulate the gene and species of not only plants but animals too, therefore it can be said that Homo sapiens are in fact the invaders of Earth, not hybridization of species.

Societies Scapegoat :: essays research papers

Societies Scapegoat   Ã‚  Ã‚  Ã‚  Ã‚  Youth crimes are on a continual rise. It seems that everyday violent offenders keep getting younger and more aggressive. We turn on the news only to hear that a ten year old mugged,shot,stabbed,beat or blew up one of his peers. With crimes on the rise involving children, people begin to look for a cause. Society, when looking for a scapegoat, becomes worse than a blood thirsty lynch mob at a witch trial. Usually the most obvious source of violence within a home is the television. However, in most cases it is not the true cause. With the TV in the forefront of virtually every home in the civilized world, it's no wonder that it's the easiest target for criticism. It's elementary to blame the tube for a child's behavior; it's a quick and easily identified source of violence within a youths confined world. The TV many times is identified as the cause of aggressive acts to avoid dealing with other underlying issues. Society today has an entire array of different afflictions that plague us from day to day. The television is of very little significance alongside the landfill of troubles that influence children today. Besides, trying to get networks to cut out violence and aggression entirely would be like trying to get Jesus Christ to write a top ten list of reasons why Christianity sucks. (It's not going to happen.)   Ã‚  Ã‚  Ã‚  Ã‚  TV is not the reason that our youth courts are filled to capacity with court dockets so hideous you would swear that you were looking at the start of the apocalypse. Television programs are not the reason for the apparent increase in adolescent crime. If you find yourself picking up your kids from the police station all the time, it's not the TV's fault!!! There are no significant consequences for youth crime in our justice system. Maybe we should impose stiffer penalties on violent offenders, instead of more censorship on TV. Kids would not have such a tendency to mug, beat, strangle or shoot their peers if there were tougher consequences for doing so.   Ã‚  Ã‚  Ã‚  Ã‚  The Japanese are responsible for some of the most violent cartoons ever created to date. I mean these things make our R rated movies look like a walk in the park. Japanese cartoons display bloodshed and drug induced murdering sprees as if they were nothing. Even with all this vicious behavior on Japanese televisions, the youth crime and aggressive behavior is one tenth of ours. How can this be? Because the Japanese have adopted a zero tolerance policy for criminal behavior and reprimand criminals with a vengeance.

C++ Programming :: science

C++ Programming NOTES ON C++ PROGRAMMING Module 1: Pointers and Memory Management NOTES ON C++ PROGRAMMING Module 1: Pointers and Memory Management TABLE OF CONTENTS TABLE OF CONTENTS 1 OVERVIEW 4 BASIC MEMORY MANAGEMENT 5 GROUP ASSIGNMENT 6 INITIALIZATION 8 CONSTANTS 9 INCREMENT AND DECREMENT OPERATORS 10 ELSE-IF 13 SWITCH 14 LOOPS 15 EXAMPLES OF LOOPS 16 BREAK, CONTINUE 18 RETURN 19 FUNCTION DEFINITION: 21 VOID FUNCTIONS 22 FUNCTIONS RETURNING A VALUE 23 OVERVIEW Algorithms: A step-by-step sequence of instructions that describes how to perform a computation. Answers the question "What method will you use to solve this computational problem?" Flowcharts: Provides a pictorial representation of the algorithm using the symbols. Structure Charts: Provides a pictorial representation of the modules contained in the program. Programming Style: Standard form: Function names starts in column 1 and is placed with the required parentheses on a line by itself. The opening brace of the function body follows on the next line and is placed under the first letter of the function name. The closing brace is placed by itself in column 1 as the last line of the function. The final form of your programs should be consistent and should always serve as an aid to the reading and understanding of your programs. Comments: Explanatory remarks made within a program. Help clarify what the complete program is about, what a specific group of statements is meant to accomplish, or what one line is intended to do. Top-Down Program Development: 1. Determine the desired output items that the program must produce. 2. Determine the input items 3. Design the program as follows: a. Select an algorithm for transforming the input items into the desired outputs. b. Check the chosen algorithm, by hand, using specific input values. 4. Code the algorithm into C. 5. Test the program using selected test data. BASIC MEMORY MANAGEMENT Space set aside for the variable: Characters 1 byte (8 bits) Pointers 4 bytes Integers 2 bytes (16 bits) or 4 bytes (32 bits) Short int or short 2 bytes Unsigned int or unsigned 2 bytes Long Integers 4 bytes Floats 4 bytes(single precision, about 7 decimal places) Doubles 8 bytes(double precision, about 15 decimal places) Type Space a) double *values; __________________ ________________________ b) long x[1000]; __________________ ________________________ c) char *s = "string"; __________________ ________________________ d) char s[] = "string"; __________________ ________________________ e) char *name [10]; __________________ ________________________

Interpersonal Communication Essay

There are many ways that my culture influences my self-concept. First let’s take a look at the many kinds of cultures there are. Culture is defined as the relatively specialized lifestyle of a group of people that is passed on from one generation to the next through communication, not through genes. Culture is transmitted from one generation to another through enculturation, the process by which you learn the culture into which you’re born (your native culture). Parents, peer groups, schools, religious institutions, and government agencies are the main teachers of culture. Through enculturation you develop an ethnic identity, a commitment to the beliefs and philosophy of your culture that, not surprisingly, can act as a protective shield against discrimination. A different process of learning culture is acculturation, the process by which you learn the rules and norms of a culture different from your native culture. In acculturation your original or native culture is modified through direct contact with or exposure to a new and different culture. Cultures, of course, differ in a wide variety of ways; and for purposes of communication, the difference that probably comes to mind first is that of languages. Certainly, cultures do differ in language spoken and understood. Masculine cultures emphasize success and socialize their people to be assertive, ambitious and competitive. Members of masculine cultures are thus more likely to confront conflicts directly and to competitively fight out any differences; they are more likely to emphasize win or lose strategies. Feminine cultures emphasize the quality of life and socialize their people to be modest and to emphasize close interpersonal relationships. Members of feminine cultures are thus more likely to emphasize compromise and negotiation in resolving conflicts; they are more likely to seek win – win solutions. Members of cultures with high ambiguity tolerance do not feel threatened by unknown situations; uncertainty is normal part of life and people accept it as it comes. Members of cultures with low ambiguity tolerance do much to avoid uncertainty and have a great deal of anxiety by not knowing what will happen next; they see uncertainty as threatening and as something that must be counteracted. In an individualist culture members are responsible for themselves and perhaps their immediate family. In a collectivist culture members are responsible for the entire group. In a high context culture much of the information in communication is in the context or in the person. In a low context culture most of the information is explicitly stated in the verbal message. In my every day life I use more of the intercultural communication. Intercultural communication is communication between persons who have different cultural beliefs, values, or ways of behaving. Being that I am African-American and my fiancà ©e is Caucasian my culture changes my self-concept. Being a male you assume that that’s the dominant one in a relationship or what not. I believe that being a male you should set the example for the household. It’s not my way or the highway is the wrong approach. It’s more of a compromise or we agree to disagree. I think that shows masculine. I can say race plays a lot but I would be lying. That would go back to a stereotype. A stereotype is a fixed impression of a group of people. From the outside looking in age would be a stereotype as well. I’ve recently turned twenty-five so that plays into another stereotype. Half way to fifty; what are you doing with your life. Or the stereotype of a black guy with a white woman. You hear it all but its all about your self-concept. I’m comfortable in my own skin. There were more important things of listening that I didn’t realize. One purpose of listening is to learn, something you do regularly as you listen to lectures in college. One of the communication skills most important to healthy relationships is the ability to listen to friends, romantic partners, family members, colleagues, and just about anyone with whom you come into contact with. You also listen to influence other people’s attitudes, beliefs, values, opinions and behaviors. Listening to play music or the rustle of leaves often serves a play purpose. Listening to help is something we experience growing up when our parents listen or, sometimes, don’t listen to our concerns and help us solve our problems. I used the five-stage model of listening as a reference guide. The barrier I noticed I have is receiving the information. By receiving the information wrong I didn’t understand what the other person was trying to get at. On the occasions when I used all five stages of listening correctly; my strong points were evaluating and responding. Which comes back to having good intercultural communication. I noticed how other people listened as well. I think if people would follow the five step process to listening they would have no problem. There would be less confusion as well. Week 5 Journal I have witnessed stages of conflict in one of my relationships by being the one directly involved in the conflict and by being the mediator and actually sitting back and observing. I experienced verbal aggressiveness on a first hand ba sis. It tears a person down from the inside out. I’ve experienced physical aggressiveness. Un like verbal aggressiveness this tears your down from the outside in. I show non verbal power just by the way I carry myself and display my athourity. Im not really sure how I would increase my personal power†¦its more a over time thing than changing it overnight. Nonverbal communication is communication without words. You communicate nonverbally when you gesture, smile or frown, widen your eyes, move your chair closer to someone, wear jewelry, touch someone, or raise your vocal volume, or even when you say nothing. The crucial aspect of nonverbal communication is that the message you send is in some way received by one or more other people. If you gesture while alone in your room and no one is there to see you, then, most theorists would argue, communication has not taken place. The same, of course, is true of verbal messages: If you recite a speech and no one hears it, then communication has not taken place. Body gestures are an especially useful classification in kinesics, or the study of communication through body movement, identifies five types: emblems, illustrators, affect displays, regulators, and adaptors. Illustrators make your communications more vivid and help to maintain your listener’s attention. They also help to clarify and intensify your verbal messages. In saying, â€Å"Let’s go up,† for example, you probably move your head and perhaps your finger in an upward direction. In describing a circle or a square, you more than likely make circular or square movements with your hands. Research points to another advantage of illustrators: that they increase your ability to remember. People who illustrated their verbal messages with gestures remembered some 20 percent more than those who didn’t gesture. Affect displays are the movements of the face that convey emotional meaning are the expressions that show anger and fear, happiness and surprise, eagerness and fatigue. Regulators monitor, maintain, or control the speaking of another individual. When you listen to another, you’re not passive; you nod your head, purse your lips, adjust your eye focus, and make various paralinguistic sounds such as â€Å"mm-mm†or â€Å"tsk.†Regulators are culture-bound: Each culture develops its own rules for the regulation of conversation. Adaptors satisfy some need and usually occur without conscious awareness; they’re unintentional movements that usually go unnoticed. Nonverbal researchers identify three types of adaptors based on their focus, direction, or target: self-adaptors, alter-adaptors, and object-adaptors. Self- adaptors usually satisfy a physical need, generally serving to make you more comfortable; examples include scratching your head to relieve an itch, moistening your lips because they feel dry, or pushing your hair out of your eyes.