Statistics Case Study 1 Essay Example For Students

Statistics Case Study 1 Essay Statistics Case Study-1 AgeWeeks Employed 5521 3018 2311 5236 4119 2512 427 4525 256 4021 2513 2511 5934 4927 3318 3520 a. AgeWeeks Employed Mean37.75Mean18.6875 Standard Error2.974195Standard Error2. We will write a custom essay on Statistics Case Study 1 specifically for you for only $16.38 $13.9/page Order now 188452 Median37.5Median18.5 Mode25Mode21 Standard Deviation11.89678Standard Deviation8.753809 Sample Variance141.5333Sample Variance76. 62917 Kurtosis-1.17143Kurtosis-0.21626 Skewness0.337402Skewness0.522601 Range36Range30 Minimum23Minimum6 Maximum59Maximum36 Sum604Sum299 Count16Count16 Confidence Level(99.0%)8. 764138Confidence Level(99.0%)6.44877 b. 99% confidence interval estimate for mean age of newly hired employees; 37.75 V 8.76 = 28. 99 to 37.75 + 8.76 = 46.51 c. Hypothesis: Decision Rule: Reject Ho if t t-critical Do not reject Ho if t t-critical t-critical = t0.01,15 =2. 602 0.771 2.602 Therefore, at a 99% Confidence Level the Null Hypothesis can not be rejected and we can not state that Riversides mean duration of employment weeks is any greater than the mean duration of employment weeks within the rest of California. d. Is there a relationship between the age of a newly employed individual and the number of weeks of employment? By using a scatter plot and plotting the number of weeks employed in respect to the ages of the workers, you can see that the points are distributed along a straight line. The number of weeks employed increase positively as the age of the worker increases. Therefore it is safe to say that there is a positive correlation between the ages of newly employed workers and the number of weeks they are employed. Textbook Exercise 7.6, The Trash Bag Case Text Problem 7.6: n =40 mean =50.575 std dev. =1. 6438 a. 95% =0.509408783m =50.06559122 m =51.08440878 99% =0.669478969m =49. 90552103 m =51.24447897 b.Yes, we can be 95% confident that the trash bags are at least 50 pounds in strength because the lower confidence level is slightly more than 50 at 50.06 pounds. c.No, we can not be 99% confident that the trash bags are at least 50 pounds in strength because the lower confidence level is slightly less than 40 at 49. 9 pounds. d.Even though I can not say for sure with 99% confidence that the trash bags have a 50 pound strength, the lower confidence level is very close at 49.9 pounds. Since no other trash bag on the market has a breaking strength of 50 pounds, I think that I can say in good confidence that this bag is the strongest bag on the market. Textbook Problem 8. 76: a. ,do not reject, the manufacturers claim is true , reject the null, the manufacturers claim is false b. Sample size is 30 so therefore we can use z-statistics. (316/400 V 0.95)/0.95*(1-0. 95)/4001/2 = -14.683 So, if given a significant level (N), if z-stat -ZN, then reject null hypothesis and accept alternative hypothesis. a-ZNAction on null hypothesis 0.10-1.282Reject 0.05-1. 645Reject 0.01-2.326Reject 0.001-3.090Reject From the above information it can be concluded that the manufacturers claim is false. c. Not really because the manufacturer claims that their television sets last at least 5 years without needing repairs but the sample collected was from consumers that owned their sets for 5 years and not beyond. In order for the results of the survey to have practical importance we would need to sample consumers that have owned their sets for 5 or more years. Palmer vs. Woods: Woods,1999 Palmer,1960 mean =69.56mean =69.95 N=84N=112 std dev. =2.5std dev. =2.5 .

declaration of independence essays

declaration of independence essays A piece of persuasive writing convinces others to change their minds or to take a specific action. The Declaration of Independence, written by Thomas Jefferson, presented a fine example of a compelling persuasive essay. Jeffersons essay is so compelling because of his incredibly brave thesis statement, which he supported in the body of his text, as well as his equally powerful conclusion. The introduction of the Declaration of Independence is so persuasive because of the bold thesis statement. Jeffersons introduction also provided the necessary background information needed for any strong introductory paragraph. In this introduction Jefferson clearly stated that all men are created equal and that all men, regardless of citizenship or loyalties, are entitled to certain unalienable rights, which include Life, Liberty and The Pursuit of Happiness. Jefferson went on to state that if any government oppresses these rights we not only can, but are obligated to, alter or abolish that government. Jefferson then confirmed that the government of King George III had not only oppressed these rights but had done so intentionally and repeatedly. He then established that it was his and all other colonists duty to inform others of the logical reasons for separation from England and the justification for revolution. Jeffersons Declaration of Independence was also well written because he used the body of his essay to support his prowess cry to separate from England. These reasons were twenty-seven violations of the colonists Unalienable right committed by King George III. These violations included, For cutting off our trade with all parts of the world. This violation prevented the colonists from earning a living and pursing their happiness. Another example of the violations of the colonists rights was For imposing taxes on us without our consent.&...

Malayalam Essays

Malayalam Essays Malayalam Essays Malayalam Essays A Malayalam essay can be written in Malayalam or in English-about Kerala. The length should normally cover one thousand five hundred words. Malayalam essays can be written around topics such as Keralas history or political and economy issues. The rich cultural heritage as well as topography of Kerala which is a state in southern India-gives plenty of scope for writing a first class essay. Malayalam essays can focus on topics such as:Marginalized communities The growth of communism Malayalam films Classical dance forms like the KathakalliMalayalam literatureThe history A good introduction to Malayalam essays can examine how Kerala was formed on the first of November 1956 to unite all the areas that predominantly spoke in the Malayalam language. Kerala covers thirty eight thousand square kilometers and is flanked by the Arabian Sea, Tamilnadu and Karanataka. Its major cities include Cochin and Calicut. The Europeans landed on this historical point and opened up t he trade route to India. The spice trade as well as the enormous and lush coconut groves as well as water ways have greatly contributed to the checkered culture of the region. A tourists paradise Malayalam essays can highlight the fact that there is so much for tourists to do and see in Kerala. They can enjoy Ayurvedic treatments that include special massaging techniques that have been passed down for generations, boat-rides on its famous backwaters or bask on her wide beaches. The people of Kerala are highly educated and it is said that many of its bus drivers hold doctorate degrees. Malayalam essays can touch on the fact that the growth of communism as well as the concept of the dignity of labor has meant that few people are ready or willing to pick coconuts or work as domestic helpers in homes for less than exorbitant rates. Points to highlight Highest literacy rate in India-91% The least corrupt state in India Increasing affluence due to NRIs from Kerala that are working in the Persian gulf. The culture of Kerala includes the literature of Bhakti saints in the medieval times Rare forms of martial arts like Klaripayat To conclude Malayalam essays can stress on the natural abundance of Malayalam flora, fauna, literature, dance and films or one can write an essay on the language of Malayalam itself that is probably one of the oldest written languages of the world.

Bodyritualnacirema Assignment Example | Topics and Well Written Essays - 500 words

Bodyritualnacirema - Assignment Example General George Washington led the American revolution in 1776, and became the first American president. For more than half of Americans, he is much more than a cultural hero. The article goes further to note that Nacirema’s culture is characterized by a well developed market economy which delivers financial benefits to the majority of the Nacirema people. The Nacirema people use up most of their time in pursuing in tending their bodies in ritualistic ways that have cultural approval (Miner, 1956). The author is obviously alluding to the preoccupation that many Americans have with ensuring that their bodies are in the best physical shape. The ‘shrine’ that the author alludes to, which exists in many houses for the purposes of ritualistically attending the body is probably a reference to gymnasiums, or exercise rooms, which many Americans have created within their houses. This shrine could also be an allusion to the medicine box. The author states that within their shrines, the Nacirema usually include a chest like box that is built into the wall. This chest is said to hold magical portions which have been given to the people by specialized practitioners. The people cannot really tell what the portions are made up of, as the practitioners write what they are in a supposedly secret language that can only be deciphered by other practitioners. From the way the author describes these portions, it is evident that he is speaking about medicinal prescriptions, as well as nutritional supplements such as vitamins and minerals which can be found today in almost every American home. The author then goes on to stop that the Nacirema culture is obsessed with the human mouth. He satirically states that the Nacirema believe so much in the power of their mouths, that they are certain that if they do not perform certain rituals on a daily basis, their teeth would fall out, and their social and personal relationships

Development of new products and services in hotels Essay

Development of new products and services in hotels - Essay Example Techniques of research are often based on epistemologies, which differ considerably across disciplines; there are numerous forms of research (Assante, Mulaj, & Steed, 2011; Bansal, & Corley, 2012). A methodology generally involves a framework upon which the search for solutions to a problem is based (Bansal, & Corley, 2012). Methodologies encompass specific components like the stages of research, operations, techniques, and the tools used (Hassanien, & Eid, 2006). A methodology includes several approaches, with each being implemented in different aspects as the project rolls out (Bourgeault, 2012). The research is often divided into two categories: quantitative research and qualitative research (Mason, Augustyn, & Seakhoa-King, 2010). The following sections of the paper examine the research methodologies used by Hassanien and Eid (2006); and Hossain, Kumar and Kumar (2010) to investigate the significance new product development in hospitality industries found in the West and North Af rica. II. Overview of the Chosen research articles (a) Article # 1 Hassanien and Eid (2006) examined the outcomes of studies and empirical research related with the involvement of key stakeholders and skills of hotels’ staff in ensuring that new product development (NPD) processes are successful during implementation. The research offers a deeper exploration of the creative behaviours and operations that can yield positive outcomes when introducing new services within a modern hotel facility in the northern African region. The outcomes of the research are of immense benefit to not only the key stakeholders in the Egypt’s hospitality industry, but enables scholars who are specialized in the hospitality management as well. The researchers arrived at the results by undertaking a survey targeted at marketing executives in various categories of the local hotels (Hassanien, & Eid, 2006). The outcomes reflected significant variations between the hotels depending on their capa cities and size. More specifically, the researchers established that 5-star hotel facilities show a better understanding and implementation of NPD than the smaller facilities in the 4-star or 3-star categories. The latter two categories of hotels have shown a lower predilection to incorporate NPD processes into their corporate culture, especially in marketing campaigns. And by touching on the benefits and pitfalls that hotel management teams are likely to experience, the researchers are spot-on regarding the right implementation process of NPDs in the various categories of hotels. (b) Article # 2 The research by Hossain, Kumar and Kumar (2010) explore the impact of new service developments (NSD) practices in hotels. The authors provide an assessment of the prevailing NSD models by carrying out researches that can be used as pointers to the innovativeness of hotel facilities in two key Western hospitality industries; the United States and Canada. The researchers identified innovative services, and evaluated them with keen eyes in order to evaluate their effectiveness. The research findings revealed stark variations in the various innovation

Developmental Stage Theories Essay Example for Free

Developmental Stage Theories Essay Developmental psychology is the scientific study of changes that occur in human beings over the course of their life span. Originally concerned with infantsand children, the field has expanded to include adolescence, adult development, aging, and the entire life span. This field examines change across a broad range of topics including motor skills and other psycho-physiological processes; cognitive development involving areas such as problem solving, moral understanding, and conceptual understanding; language acquisition; social, personality, and emotional development; and self-concept and identity formation. Developmental psychology includes issues such as the extent to which development occurs through the gradual accumulation of knowledge versus stage-like development, or the extent to which children are born with innate mental structures, versus learning through experience. Many researchers are interested in the interaction between personal characteristics, the individuals behavior, and environmental factors including social context, and their impact on development; others take a more narrowly-focused approach. Developmental psychology informs several applied fields, including: educational psychology, child psychopathology, and forensic developmental psychology. Developmental psychology complements several other basic research fields in psychology including social psychology, cognitive psychology, ecological psychology, and comparative psychology. Theories Attachment theory Attachment theory, theoretical frame work originally developed by John Bowlby, focuses on open, intimate, emotionally meaningful relationships. Attachment is described as a biological system or powerful survival impulse that evolved to ensure the survival of the infant. A child who is threatened or stressed will move toward caregivers who create a sense of physical, emotional and psychological safety for the individual. Attachment feeds on body contact and familiarity. Later Mary Ainsworth developed the Strange Situation protocol and the concept of the secure base. There are three types of attachment styles: secure, anxious-avoidant, and anxious-resistant. Secure attachment is a healthy attachment between the infant and the caregiver. It is characterized by trust. Anxious-avoidant is an insecure attachment between an infant and a caregiver. This is characterized by the infants indifference toward the caregiver. Anxious-resistant is an insecure attachment between the infant and the caregiver characterized by distress from the infant when separated and anger when reunited. [1] A child can be hindered in its natural tendency to form attachments. Some babies are raised without the stimulation and attention of a regular caregiver, or locked away under conditions of abuse or extreme neglect. The possible short-term effects of this deprivation are anger, despair, detachment, and temporary delay in intellectual development. Long-term effects include increased aggression, clinging behavior, detachment, psychosomatic disorders, and an increased risk of depression as an adult. [2][3] Constructivism Constructivism is a paradigm in psychology that characterizes learning as a process of actively constructing knowledge. Individuals create meaning for themselves or make sense of new information by selecting, organizing, and integrating information with other knowledge, often in the content of social interactions. There are two ways in which constructivism can occur: individual and social. Individual constructivism is when a person constructs knowledge through cognitive processes of their own experiences rather than by memorizing facts provided by others. Social constructivism is when individuals construct knowledge through an interaction between the knowledge they bring to a situation and social or cultural exchanges within that content. [4] Ecological systems theory The Ecological systems theory, originally formulated by Urie Bronfenbrenner specifies four types of nested environmental systems, with bi-directional influences within and between the systems. The four systems are microsystem, mesosystem, exosystem, and macrosystem. Each system contains roles, norms and rules that can powerfully shape development. The microsystem is the immediate environment surrounding and influencing the individual (example: school or the home setting). The mesosystem is the combination of two microsystems and how they influence each other (example: sibling relationships at home vs. peer relationships at school). The exosystem is the interaction among two or more settings that are indirectly linked (example: a fathers job requiring more overtime ends up influencing his aughters performance in school because he can no longer help with her homework). The macrosystem is broader taking into account social economic status, culture, beliefs, customs and morals (example: a child from a wealthier family sees a peer from a less wealthy family as inferior for that reason). Lastly, the chronosystem refers to the chronological nature of life events and how they interact and change the individual and their circumstances through transition (example: a mother losing her own mother to illness and no longer having that support in her life). Since its publication in 1979, Bronfenbrenners major statement of this theory, The Ecology of Human Development[5] has had widespread influence on the way psychologists and others approach the study of human beings and their environments. As a result of this conceptualization of development, these environments—from the family to economic and political structures—have come to be viewed as part of the life course from childhood through adulthood. [6] Psychosexual development Sigmund Freud believed that we all had a conscious, preconscious, and unconscious level. In the conscious we are aware of our mental process. The preconscious involves information that though we are not currently thinking about can be brought into consciousness. Lastly, the unconscious includes those mental processes which we are unaware of. He believed that the conscious and unconscious had tension because the conscious would try and hold back what the unconscious was trying to express. To explain this he developed three structures of personality; the id, ego, and superego. The id, being the most primitive of the three functioned according to the pleasure principle. The pleasure principle states that the id’s motivation is to seek pleasure and avoid pain. Based on this he proposed five universal stages of development. The first is the oral stage which occurs from birth to 12 months of age, second is the anal stage which occurs from one to three years of age, third is the phallic stage which occurs from three to five years of age (most of a person’s personality is formed by this age), the fourth is called latency which occurs from age five until puberty, and lastly stage five is the genital stage which takes place from puberty until adulthood. 7] Stages of moral development Theories of morality that stem from Jean Piaget’s cognitive-developmental viewpoint emphasize shifts in the type of reasoning that individuals use in making moral decisions. Changes in the content of the decision they reach or the actions they take as a result does not occur. [dubious – discuss] Lawrence Kohlberg expanded on this issue specifically during adolescence. He suggested three levels of moral reasoning; preconventional moral reasoning, conventional moral reasoning, and postconventional moral reasoning. Preconventional moral reasoning is typical of children and is characterized by reasoning that is based on rewards and punishments associated with different courses of action. Conventional moral reason occurs during late childhood and early adolescence and is characterized by reasoning that is based on the rules and conventions of society. Lastly, postconventional moral reasoning is the stage during which society’s rules and conventions are seen as relative and subjective rather than as authoritative. [1] Stages of psychosocial development Erik Erikson became a child psychoanalyst like his mentor Anna Freud, Sigmond Freud’s daughter. He went on to reinterpret Freud’s psychosexual stages by incorporating the social aspects of it. He came up with eight stages, each of which has two crisis (a positive and a negative). Stage one is trust versus mistrust, which occurs during infancy. Stage two is autonomy versus shame and doubt which occurs during early childhood. Stage three is initiative versus guilt which occurs during play age. Stage four is industry versus inferiority which occurs during school age. Stage five is identity versus identity diffusion which occurs during adolescence. Stage six is intimacy versus isolation which occurs during young adulthood. Stage seven is generativity versus self-absorption which occurs during adulthood. Lastly, stage eight is integrity versus despair which occurs during old age. In each of these stages either one or the other crisis is developed. The ideal thing would be to have the positive crisis more developed than the negative crisis. [7] Theories of cognitive development Jean Piaget was a Swiss theorist who posited that children learn by actively constructing knowledge through hands-on experience. [8] He suggested that the adults role in helping the child learn was to provide appropriate materials or the child to interact and construct. He would use Socratic questioning to get the children to reflect on what they were doing. He would try to get them to see contradictions in their explanations. He also developed stages of development. His approach can be seen in how the curriculum is sequenced in schools, and in the pedagogy of preschool centers across the United States. Piaget believed that intellectual development took place through a series of stages which caused him to come up with his Theory on Cognitive Development. Each stage consisted of steps which the child had to master before moving on to the next step. He believe that these stages where not separate from one another but rather each stage built on the previous one, hence learning was continuous. His theory consisted of four stages; sensorimotor, pre-operational, concrete operational, and formal operational. Though he did not believe these stages occurred at any given age, many studies have determine when these cognitive abilities should take place. [4] Zone of proximal development Lev Vygotsky was a Russian theorist from the Soviet era, who posited that children learn through hands-on experience and social interactions with members of his/her culture. 9] Unlike Piaget, he claimed that timely and sensitive intervention by adults when a child is on the edge of learning a new task (called the zone of proximal development) could help children learn new tasks. Martin Hill stated that The world of reality does not apply to the mind of a child. This technique is called scaffolding, because it builds upon knowledge children already have with new knowledge that adults can help the child learn. [10] Vygotsky was strongly focused on the role of culture in determining the childs pattern of development, arguing that development moves from the social level to the individual level. 10] In other words, Vygotsky claimed that psychology should focus on the progress of human consciousness through the relationship of an individual and their environment. [11]He felt that if scholars continued to disregard this connection, then this disregard would inhibit the full comprehension of the human consciousness Nature/nurture A significant issue in developmental psychology is the relationship between innateness and environmental influence in regard to any particular aspect of development. This is often referred to as nature versus nurture or nativism versus empiricism. A nativist account of development would argue that the processes in question are innate, that is, they are specified by the organisms genes. An empiricist perspective would argue that those processes are acquired in interaction with the environment. Today developmental psychologists rarely take such polarised positions with regard to most aspects of development; rather they investigate, among many other things, the relationship between innate and environmental influences. One of the ways in which this relationship has been explored in recent years is through the emerging field of evolutionary developmental psychology. One area where this innateness debate has been prominently portrayed is in research on language acquisition. A major question in this area is whether or not certain properties of human language are specified genetically or can be acquired through learning. The empiricist position on the issue of language acquisition suggests that the language input provides the necessary information required for learning the structure of language and that infants acquire language through a process of statistical learning. From this perspective, language can be acquired via general learning methods that also apply to other aspects of development, such as perceptual learning. The nativist position argues that the input from language is too impoverished for infants and children to acquire the structure of language. Linguist Noam Chomsky asserts that, evidenced by the lack of sufficient information in the language input, there is a universal grammar that applies to all human languages and is pre-specified. This has led to the idea that there is a special cognitivemodule suited for learning language, often called the language acquisition device. Chomskys critique of the behaviorist model of language acquisition is regarded by many as a key turning point in the decline in the prominence of the theory of behaviorism generally. [12] But Skinners conception of Verbal Behavior has not died, perhaps in part because it has generated successful practical applications. [12] Mechanisms of development Developmental psychology is concerned not only with describing the characteristics of psychological change over time, but also seeks to explain the principles and internal workings underlying these changes. Psychologists have attempted to better understand these factors by using models. Developmental models are sometimes computational, but they do not need to be. A model must simply account for the means by which a process takes place. This is sometimes done in reference to changes in the brain that may correspond to changes in behavior over the course of the development. Computational accounts of development often use either symbolic, connectionist (neural network), or dynamical systems models to explain the mechanisms of development. Research areas Cognitive development Cognitive development is primarily concerned with the ways in which infants and children acquire, develop, and use internal mental capabilities such as problem solving, memory, and language. Major topics in cognitive development are the study of language acquisition and the development of perceptual and motor skills. Piaget was one of the influential early psychologists to study the development of cognitive abilities. His theory suggests that development proceeds through a set of stages from infancy to adulthood and that there is an end point or goal. Other accounts, such as that of Lev Vygotsky, have suggested that development does not progress through stages, but rather that the developmental process that begins at birth and continues until death is too complex for such structure and finality. Rather, from this viewpoint, developmental processes proceed more continuously, thus development should be analyzed, instead of treated as a product to be obtained. K. Warner Schaie has expanded the study of cognitive development into adulthood. Rather than being stable from adolescence, Schaie sees adults as progressing in the application of their cognitive abilities. 13] Modern cognitive development has integrated the considerations of cognitive psychology and the psychology of individual differences into the interpretation and modeling of development. [14]Specifically, the neo-Piagetian theories of cognitive development showed that the successive levels or stages of cognitive development are associated with increasing processing efficiency andworking memory capacity. In addition, children in higher-levels of cognitive development have been observed to have greater mathematical fluency in basic addition and subtraction problems. 15] These increases explain differences between stages, progression to higher stages, and individual differences of children who are the same-age and of the same grade-level. However, other theories have moved away from Piagetian stage theories, and are influenced by accounts of domain-specific information processing, which posit that development is guided by innate evolutionarily-specified and content-specific information processing mechanisms. Social and emotional development Developmental psychologists who are interested in social development examine how individuals develop social and emotional competencies. For example, they study how children form friendships, how they understand and deal with emotions, and how identity develops. Research in this area may involve study of the relationship between cognition or cognitive development and social behavior. Erik Erikson believed we undergo several stages to achieve social and emotional development. These stages were called the Erik Eriksons Stages of Psychosocial Development. The stages were trust vs. mistrust, attachment, parenting style, ego identity, role diffusion, generativity versus stagnation, midlife crisis, and ego integrity versus despair. Emotional regulation or ER refers to an individuals ability to modulate emotional responses across a variety of contexts. In young children, this modulation is in part controlled externally, by parents and other authority figures. As children develop, they take on more and more responsibility for their internal state. Studies have shown that the development of ER is affected by the emotional regulation children observe in parents and caretakers, the emotional climate in the home, and the reaction of parents and caretakers to the childs emotions. [16] Physical development Physical development concerns the physical maturation of an individuals body until it reaches the adult stature. Although physical growth is a highly regular process, all children differ tremendously in the timing of their growth spurts. [17] Studies are being done to analyze how the differences in these timings affect and are related to other variables of developmental psychology such as information processing speed. Traditional measures of physical maturity using x-rays are less in practice nowadays, compared to simple measurements of body parts such as height, weight, head circumference, and arm span. 17] A few other studies and practices with physical developmental psychology are the phonological abilities of mature 5- to 11-year-olds, and the controversial hypotheses of left-handers being maturationally delayed compared to right-handers. A study by Eaton, Chipperfield, Ritchot, and Kostiuk in 1996 found in three different samples that there was no difference between right- and left-handers. [17] Memory development Researchers interested in memory development look at the way our memory develops from childhood and onward. According to Fuzzy-trace theory, we have two separate memory processes: verbatim and gist. These two traces begin to develop at different times as well as at a different pace. Children as young as 4 years-old have verbatim memory, memory for surface information, which increases up to early adulthood, at which point it begins to decline. On the other hand, our capacity for gist memory, memory for semantic information, increases up to early adulthood, at which point it consistent through old age. Furthermore, our reliance on gist memory traces in reasoning increases as we age.

A Closer Look at Lucy: Sexual Dimorphism and Speciation in Australopit

A Closer Look at Lucy: Sexual Dimorphism and Speciation in Australopithecus In his peer-reviewed article, â€Å"Sexing fossils: a boy named Lucy?,† James Shreeve discusses, in detail, a study on sexual dimorphism and possible speciation in Australopithecines in Hadar, Ethiopia, based on the famous A. afarensis specimen, â€Å"Lucy.† In the article, â€Å"Lucy’s kind takes humanlike turn,† the author addresses sexual dimorphism and speculates on sex-based differences in behaviors in A. afarensis. The two articles have differences and commonalities with each other in content and both present research methods and conclusions on topics including sexual dimorphism, sex-based behaviors, and speciation in Australopithecines, which receive critical analysis. A study performed by Martin Hausler and Peter Schmid of the University of Zurich, Switzerland, appeared in the October 1995 issue of Journal of Human Evolution, igniting controversy over the 1974 Australopithecus discoveries in Hadar, Ethiopia. The most famous of the Hadar specimens is the 3-million-year-old skeleton, â€Å"Lucy,† who was recovered by paleoanthropologist, Donald Johanson. In his article, Shreeve presents the methods and findings of Hausler and Schmid’s study as well as some counter arguments from other scientists in the field. Hausler and Schmid suggest that speciation exists within the Hadar Australopithecines – that the specimens represent not just one species (afarensis), but two. To support their view, the scientists use calculations showing the sexual dimorphism (the presence of characteristics that differ between male and female members) among Australopithecines. Again, by studying sexual dimorphic traits, the scientists claim that â€Å"Lucy† is possibly male, not fema... ...â€Å"Sexing fossils: a boy named Lucy?,† a peer-reviewed article by James Shreeve, and the article â€Å"Lucy’s kind takes humanlike turn† address subjects including sexual dimorphism, sex-based behaviors, and speciation of Australopithecines. While the two articles differ in the research and findings presented, they share a main, significant conclusion about Australopithecines, which is the sexual dimorphism in body size. Male A. afarensis are evidently larger than females, although there is some disagreement as to how much larger (the degree of sexual dimorphism). Works Cited B.B. (2003). Lucy’s kind takes humanlike turn. Science News, 164, 3, p45(1). Retrieved April 5, 2004 from Infotrac Onefile database. Shreeve, James. (1995). Sexing fossils: a boy named Lucy? Science, 270, 5240, p1297(2). Retrieved April 5, 2004 from Infotrac Onefile database.

Coffee drinking enhances the analgesic effect of cigarette smoking Essay

              Addiction is defined as a state whereby one becomes one cannot do without a certain stimuli which one has compulsive engagement often getting a reward but the end results are adverse. An individual is not able to control the various aspects which form part of their addiction and they often compelled to repeat the same behavior or have the same substance over and over again. A habit may also become an addiction if one engages in the same habit often. Furthermore, the addiction of an individual to a certain substance or even an activity often leads to very serious problems which can be experienced at school, home and even within the social network that an individual has. There are several types of addictions and some of whi9ch will be analyzed and discussed in this essay include coffee addiction, internet addiction as well as cigarette or nicotine addiction. Internet addiction             Internet addiction, as the name suggests results from the constant and continued browsing through the internet and being online for longer hours without having any specific objective that one wants to achieve (Christakis, 61). The daily routine browsing and surfing ion the internet for longer hours whereby any interruptions of such activity causes one to become irritated often can be considered as internet addiction. The constant and unstoppable yet obsessive browsing of the internet started with the introduction and the use of internet. Over the years, this has grown a lot as a result of the developments and the ease of access to the internet which has been experienced (Christakis, 61). Internet addiction is experienced through the effect that online materials such as pornography, gaming, blogging, gambling and even networking have on individuals in the society. Internet addiction will manifest itself when one is seen to be pre-occupied with thoughts about the in ternet on the various activities they carry out on the internet.                Furthermore, the increased use of internet, depression, seemingly to be moody as well as restless when one attempt to stop using the internet also form signs of internet addiction (Christakis, 61). When one uses the internet to avoid real life situations, often tells lies about their involvement with the internet are also signs one may be addicted to the internet. The effects are that one becomes withdrawn from real life relationships, physical discomfort, anxiety and depression. Furthermore, it has negative effects on family, occupations, financial status as well as academic work and performance. To address this issue, one has to recognize and accept they have a problem (Christakis, 61). After determining and accepting there is a problem, one should seek a â€Å"Certified Addictions Counselor† who is trained on handling and treating internet addiction. Cigarette/Nicotine Addiction               The second type of addiction that is addressed in this paper is cigarette or nicotine addiction. This kind of addiction started long time ago and for many centuries people have been addicted to cigarette. The use of cigarette was in the past viewed as a way of showing prestige since people that were wealthy were the ones often seen smoking cigarettes (Balfour, et al., 438-45). It tobacco has been used for a long time across the world. However, it is to be noted that tobacco contains nicotine, an addictive substance and quite poisonous. Furthermore, when nicotine is taking in small doses, it can act as a stimulant to the central nervous system of the body which makes one become more active. The large part of nicotine is often metabolized in the liver after which it is excreted from the kidney. Nicotine is known to remain in the blood system for up to eight hours after one has stopped smoking. Smoking is a habit that one adopts and regular smoking makes the body tolerant to nicotine which then means one has to smoke more cigarettes to satisfy the craving that is developed (Balfour, et al., 438-45). As one continues to use cigarettes, the symptoms of withdr5awal are experienced which becomes an indication that one has developed dependency on cigarettes and cannot do without it hence addiction.               The signs of cigarette addiction can be seen when one starts smoking â€Å"few† sticks of cigarette after which one starts smoking a whole pack of cigarettes in a day. This is a clear indication that the individual has developed tolerance to the nicotine contained in the cigarettes hence needs large amounts of the same to satisfy the urge. The other sign of dependency on cigarette is withdrawal. This refers to the physical symptoms which can be observed in an individual when they stop of fail to use the cigarette which may include restlessness, anxiety as well as drowsiness among others (Balfour, et al., 438-45). Furthermore, a tobacco addict will also be seen to select to engage and be around people who smoke, take on jobs that will allow them to smoke as well as hiding or even sneaking cigarettes in areas where it is prohibited. For parents who are addicted, they will be seen to smoke even around their children despite knowing that it is harmful to th e health of their children.               The side effects of this addiction include lung cancer, emphysema, as well as heart disease.   The continued use of nicotine often results in high blood pressure, contraction of blood vessels hence inhibiting flow of blood (Balfour, et al., 438-45). The carbon monoxide from the cigarette smoke often results in insufficient oxygen in the blood. Furthermore, cigarette addiction results in one becoming nervous, always feeling shaky and even anxious for no good reason if they fail to use the cigarette. To address this type of addiction, one is required to seek professional help from â€Å"Certified Addictions Counselor† who will be able to provide professional help (Balfour, et al., 438-45). The support from family members as well as friends is also important in overcoming this addiction. Coffee Addiction             Coffee addiction is also another type of addiction which is seen to have affected the society quite a lot. Coffee addiction results from the intake of caffeine which is a stimulant (Nastase, Anca, et al., 921-24). Caffeine when taken often stimulates the nervous system and the continued use of coffee often results in physical dependence although quite mild. However, it is to be noted that caffeine is not as addictive as the other types of stimulants which people often use and it does not have the same threats to social, physical as well as economic health of an individual (Nastase, Anca, et al., 921-24).               Coffee has been in use for many centuries as a household drink most often taken in the morning or anytime that one feels they need to have coffee. It has been noted that when one takes two or even more cups of coffee in a day, and then stops abruptly the use of coffee, there are several symptoms which will be experienced. One is likely to experience symptoms of withdrawal such as headaches, anxiety, fatigue, depressed moods, irritability as well as difficulty in concentrating on one issue (Nastase, Anca, et al., 921-24). Caffeine use and dependency can be stopped, gradually by talking coffee in small quantities until that time when one completely stops using coffee. It is also advisable to seek professional help from a â€Å"Certified Addictions Counselor† who is in a better position to help out with the dependency. References Balfour, D., et al. â€Å"Diagnosis and treatment of nicotine dependence with emphasis on nicotine replacement therapy. A status report.† European Heart Journal 21.6 (2000): 438-445. Christakis, Dimitri A. â€Å"Internet addiction: a 21st century epidemic?.† BMC medicine 8.1 (2010): 61. Nastase, Anca, et al. â€Å"Coffee drinking enhances the analgesic effect of cigarette smoking.† Neuroreport 18.9 (2007): 921-924. Source document

Leadership Ethics Essay

When the decision is made to become a nurse, there is a code of ethics in place that they agree to abide by (ANA, 2001). The Registered Nurse who demonstrates leadership and ethics places their own personal and religious beliefs aside to do what is truly best for the outcomes of those they serve. As a school nurse, the obligation to keep the students safe and healthy should and often does come first and foremost. Counseling abstinence, though necessary, will not stop teens from having sexual intercourse and it will not teach them to protect themselves from sexually transmitted diseases and unplanned pregnancies. Those entrusted with the health and welfare of our young people must teach them how to utilize condoms to protect themselves against unwanted pregnancies and contacting sexually transmitted diseases, (STDs). It is well known that Catholics do not use birth control in any way shape or form; this includes the use of condoms. STD’s and unplanned pregnancies are viewed as consequences to one’s sins. When the school nurse is also a devout Catholic, issues surrounding teens, sex, and birth control can cause moral distress and make the nurse question the actions they have taken. It was learned in week 4 that â€Å"Actions are only ethical if motivated by a duty to do the right thing† (CCN, 2013). What IS the right thing to do? Teens, Sexually Transmitted Diseases, & Abstinence There are nineteen million new cases of bacterial and viral cases of sexually transmitted diseases diagnosed in the United States each year and 50% of these cases are diagnosed in adolescent males and females and most case studies focus on abstinence or on the use of condoms (Akers, Gold, Coyne-Beasley, & Corbie-Smith, 2012). â€Å"It is estimated that by the end of  high school, nearly two thirds of American youth are sexually active, and one in five has had four or more sexual partners† (Starkman & Rajani, 2002 p. 313). Sex education should include the worth and benefits of abstinence but there is little evidence that abstinence only programs work. Teens who participate in these programs may not refrain from sexual intercourse longer or become sexually active sooner than those who participate in programs that promote the use of condoms. There is no evidence that those who do participate in abstinence only programs are less sexually active but there is evidence that those w ho do participate in all-inclusive program practice safer sex when they do become sexually active (Starkman & Rajani, 2002). Catholicism & the Use of Condoms Cardinal Jaime Sin issued a pastoral exhortation in 2001 stating that â€Å"the condom corrupts and weakens people, destroys families and individuals, and also spreads promiscuity† (Arie, 2005 p. 926). The Catholic church’s negative stance on condoms in that they murder sperm and promote immoral behavior in spite of the fact that Catholic organizations care for 25% of all those that are afflicted with HIV/AIDS (Arie, 2005), causes great moral distress for Catholic nurses who have an obligation to practice using the Code of Ethics outlined by the ANA. Non-Catholic teenagers are more likely to use and know about condom usage than Catholic teens (Kinsman, Nakiyingi, Kamali, & Whitworth, 2001) even with those who are higher up in the Catholic organization voicing opinions and recognizing that there is power in condoms saving lives, and the Catholic church refuses to endorse their use and educate their members (Arie,2005). Conclusion There is over whelming evidence that the use of condoms is beneficial in preventing the transmission of STD’s among adolescents. With over half of all sexually transmitted diseases being reported among young people, it is of upmost importance that those working with teenagers, where it concerns sexuality, be prepared to teach them about the importance of protecting themselves from STD’s by promoting the use of condoms as counseling abstinence will not stop teens from having sexual intercourse. The Catholic Church refuses to promote the use of condoms. Therefore, it is even more important, when looking at the imperial evidence and outcomes from  statistics when condoms are used as a preventative measure for STD’s, for the Catholic nurse to put aside her own religious and moral beliefs in favor of teaching the significance of using condoms for the prevention of sexually transmitted diseases and unplanned pregnancies. Furthermore, it is of this author’s opi nion that no nurse who has protected a young person by preventing pregnancy or an STD, through comprehensive sex education and counseling that teenager to use condoms, should ever feel any moral distress or be persecuted by her congregation for doing the right thing. References American Nurses Association. (2001). Code of ethics for nurses with interpretive statements. New York: Author. Akers, A. Y., Gold, M. A., Coyne-Beasley, T., & Corbie-Smith, G. (2012). A Qualitative Study of Rural Black Adolescents’ Perspectives on Primary STD Prevention Strategies. Perspectives On Sexual & Reproductive Health, 44(2), 92-99. doi:10.1363/4409212 Arie, S. (2005). Crusading for change. BMJ: British Medical Journal (International Edition), 330(7497), 926. Chamberlain College of Nursing. (2013). NR504 Leadership and nursing practice: role development: Week 4 lesson. St. Louis, MO: Online Publication. Kinsman, J. J., Nakiyingi, J. J., Kamali, A. A., & Whitworth, J. J. (2001). Condom awareness and intended use: gender and religious contrasts among school pupils in rural Masaka, Uganda. AIDS Care, 13(2), 215-220. doi:10.1080/09540120020027387 Porter-O’Grady, T., & Malloch, K. (2011). Quantum leadership: Advancing innovation, transforming health care (3rd ed.). S udbury, MA: Jones & Bartlett. Starkman, N., & Rajani, N. (2002). The Case for Comprehensive Sex Education. AIDS Patient Care & Stds, 16(7), 313-318. doi:10.1089/108729102320231144

How to Resolve Awkward Identifying Descriptions

How to Resolve Awkward Identifying Descriptions How to Resolve Awkward Identifying Descriptions How to Resolve Awkward Identifying Descriptions By Mark Nichol Writers often fail to note that a phrase they have constructed to describe a person, place, or thing- one that involves two parallel components, or one component subordinate to another, in sequence- can result in unwieldy strings of nouns functioning as adjectives leading up to a key noun. In each of the following sentences, following a discussion of the problem, such a train of stacked adjectives is uncoupled and rearranged for improved readability in one or more revisions. 1. â€Å"Our idea and concept was to build a small place to entertain our friends and to have some foodies and chef friends around to create new and imaginative dishes,† co-owner chef Stefan Stiller said in a statement. The conjunction and should separate two disparate identifying words or phrases associated with a person’s name: â€Å"‘Our idea and concept was to build a small place to entertain our friends and to have some foodies and chef friends around to create new and imaginative dishes,’ co-owner and chef Stefan Stiller said in a statement.† (A solidus, or slash, could be inserted to separate the terms, but this symbol should be avoided in formal writing.) An alternative is to use the person’s name to divide the identifying terms: â€Å"‘Our idea and concept was to build a small place to entertain our friends and to have some foodies and chef friends around to create new and imaginative dishes,’ co-owner Stefan Stiller, a chef, said in a statement,† However, it would be more appropriate to identify the speaker first as a chef and then as a co-owner. 2. FBI Criminal Investigation Division Deputy Assistant Director John Smith emphasized the potential for both the industry and regulators to benefit by improving collaboration. When a name is preceded by a cumbersome job title, and especially if that is preceded by a reference to the entity by which the person is employed, the information is easier to read if it follows the name and the train of terms is relaxed by beginning with the job title, followed by â€Å"of the† and the entity’s name: â€Å"John Smith, deputy assistant director of the FBI’s Criminal Investigation Division, emphasized the potential for both the industry and regulators to benefit by improving collaboration.† (Note that the job title is not capitalized when it does not precede the person’s name.) 3. The Association of Certified Anti-Money Laundering Specialists Fifteenth Annual Anti-Money Laundering and Financial Crime Conference begins on April 1. The same approach is appropriate when the name of a component of an entity or an event presented by an entity is combined with the name of the entity: â€Å"The fifteenth annual Anti-Money Laundering and Financial Crime Conference of the Association of Certified Anti-Money Laundering Specialists begins on April 1.† (Note that a reference to how many of these events have been held at regular intervals, such as â€Å"fifteenth annual,† is seldom part of an event’s official designation and therefore is usually not capitalized.) Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Style category, check our popular posts, or choose a related post below:100 Words for Facial ExpressionsUsed To vs. Use ToWriting a Thank You Note

A Moment that Lasts Forever Essay Example for Free

A Moment that Lasts Forever Essay ? I turn around to see the audience cheering their lungs out for me. Even though I’ve been through so many competitions before, none of the competitions could even compare to the contrasting feelings I was having at the moment. Although at the time, I still did not know who won in the finals of one of the biggest competitions in California, nor did I know what the judges thought of me, I knew that I had successfully completed a memory that would have a big impact on my life. I knew that I had worked hard and tried my best, and even if I ended up not even winning a place, I would have earned something from this extreme event. My teacher had been trying to decide what piece to give me for my next competition: MTAC, the Music Teacher’s Association of California. What does that mean? It means that I will be competing in one of the biggest, and hardest competition in California again. It would be the 3rd time in this competition for me, after failing the first time, and barely achieving ‘Honorable Mention’ the second time. I knew that this was my chance, my chance to finally show all the critics, all the people that believed I was just a talentless girl with extremely well-known teachers, that I actually was able to play the piano. â€Å"Oh! How about this piece?† my mentor suggested.   I looked up to see my teacher, a young boy stuck in a old man’s body, look at me, so happy and excited about something that he was almost bouncing off the floor. I see him holding a green book, and I see as he opens the book to the 5th page, the words â€Å"Abegg Variations† by Schumann. I nearly fainted right there and then. â€Å"How did this teacher expect me to play this super hard piece that even Lang Lang made mistakes in when he played, when I couldn’t even play my Mendelssohn well?† I thought to myself, â€Å"but I probably can’t do anything about it, especially not with my mom looking like a dog that just managed to get its owner to give it a thousand bones, also.† The first big obstacle came quick enough. My mom announced that I was going to play at her student’s recital, only a few months after I first got the piece. I nearly fainted after all the screaming, crying, yelling I did. â€Å"It would be a good experience and excellent practice for your competition† she said. â€Å"But I’m not ready!† I replied back trying to use imploring eyes to achieve a change of mind. â€Å"You are playing, and that’s final!† she answered. I knew there was absolutely no point in arguing anymore, and that all I could do was practice. Turns out, I was completely right about one fact: I was not ready for this recital at all. I messed up, and I didn’t mess up small, I messed up humongous, huge, extreme, terrifyingly big. As I disembarked from the stage, I could just see how much practicing I would have to do to prepare for my second obstacle: my piano teacher’s recital. Apparently, all the practicing I did before this next recital was not enough, because I managed to embarrass myself at my piano teacher’s recital also. My fate was inevitable, and I knew by then that I was going to be practicing like crazy now, if I didn’t before. I also knew how furious my mom was going to be at me. My prediction was completely correct, as I was told to practice so much that my fingers were about to fall off. To be exact, I practiced sixty times for each variation, and Abegg Variations has multiple variations. T hough it took more than 4 hours every day, I stayed persistent, and slowly and steadily I improved. As I was about to go into a room for the first round of the competition, all I could think was†¦ â€Å"What if I mess up, what if I mess up†¦ I’m going to mess up, I’m going to mess up, I’M GOING TO MESS UP!!! GAHH~~!!!† The door holder called out, â€Å"Anna Yang†, and it was my turn. I went in, and was surprised to find three judges, different from the previous year. My face literally turned as bright as the sun when I did not see the judge that absolutely detests my teacher, *a*c* *e*s*n (for privacy reasons, I will exclude her name from this essay). I turned as hyper as a kid could become, and I was about to scream from happiness right then. Every single time I am in a competition, and she’s a judge, she always marks me down. Luckily, she was not here this time, and instead, sitting in her place, was a nice, friendly looking old lady, a not very skinny lady who’s facial expressions seemed a bit like the evil stepmother from Cinderella, and a Jasmine look-a-like lady who’s only difference from Jasmine was that she looked like she was about to poison me with a poisonous apple. As I bowed to them, I became more relaxed at the smile of the nice, friendly looking old lady. Although I was still frightened at the prospect of messing up, I was shaking a considerably less amount than I was before. I made a mistake, but I was lucky. Right when I made the mistake, the nice, friendly looking judge dropped her cushion from her chair, and everyone rushed to help her pick it up. My mistake had gone by unnoticed by the crowd. By that time, I was so ecstatic that my smile was about to reach the sky. The results of the first round came out soon enough. As I went on the MTAC website on my phone, I could hear both my mom’s heartbeat, and also my heartbeat beating as fast as a hare would beat while being chased by a extremely furious tiger. The page finally finished loading, and I scrolled down to see: Grand Prize: Anna Yang. I celebrated for about 2 minutes thinking about how all that practice had actually been beneficial, and then I realized what that meant†¦ I was going to have to compete one more time, this time against the winner of the Southern California group. I scrolled down to see who exactly I had to compete against during the final, and I went ballistic when I saw. Sherry Tang was the winner of Southern California. I was going to play against THE Sherry Tang, the girl who was on From the Top and won against college kids. The girl who won a national competition. By that time, I was already dead cast against the fact that I would never win, but my mom calmed me down with her comforting words, telling me that I should not give up, even if there is almost no chance of winning. I did not give up. I continued playing and practicing every day, and I ended up not regretting it. A few months later, a judge called out Sherry’s name before they called my name. As I heard the words â€Å"1st place, Anna Yang†, I walked towards the auditorium stage. As I walked on stage, I did not cry. I could only smile. Who wouldn’t? Why would you be unhappy about the fact that you had just won one of the biggest competitions in California? Though I do not practice as much anymore, I still always have a certain self-confidence while playing piano. I also learned that as long as I put in effort and I have fun, the audience and judges will also have fun, and they will feel the effort I have put in. A Moment that Lasts Forever. (2016, Dec 13).

How is the internet and social media changing the way we learn in work Coursework

How is the internet and social media changing the way we learn in work place - Coursework Example The advent of internet and social media has drastically changed the way we interact with people and the way we gather information. The gradual rise of internet usage has made it easier for us to have access to critical information, which otherwise would take much longer to gather (Vitez, 2015). The internet and social media has also influenced our work culture and workplace learning. The research question pertaining to this research work is stated below. The aims and objectives concerning this research work are to unearth the influence of internet and social media on work place learning. This research work also try and find out the determining factors behind the changing trend of organizational behaviour under the influence of internet and social media along with the future trends of the work culture relating to internet and social media. It will also find out how the employees respond to the changing trend of learning in work place and whether or not there are any changes that need to be made within the organizational practices. The aims also include providing a generic recommendation for the firms on how to redirect the usage of internet and social media in favour of the organization and its employees. According to the reports of Internet World Stats (2015), the global internet usage has increased drastically over the last decade. This as a result has changed the way people used to access information and connect to peers. The way we interact with others has also been influenced largely by the advent of the internet and social media. It has virtually reduced the distance between people and has made the world a more open place. These evolutions in technology have also influenced the way we work. Internet has drastically changed the organizational policies and the way the activities are conducted. According to (Manyika and Charles Roxburgh, 2011), the internet is widely used among almost all the