Tuesday, January 28, 2020

Essay Example for Free

Essay Most people think â€Å"we† are becoming more equal through out history. Although, the reality is that we repeat history. Between class, gender, and race the recreation of systems of discrimination is repetitive. With that being said I will introduce five facts that reflect social construct relating to class, gender and race in America. Class is a set of concepts that society has created to measure ones income, wealth, and status. While, there is not a direct definition of class it is a huge aspect of the way we live our lives. I will break down class within the way society measures it. Income is based on the particular money or revenue an employee is bringing home. Meaning wealth is significantly associated with income plus the material things an individual owns; for example expensive cars, land, or any ownership that shows fortune. In theory, status is the exemplification of inheritance, for example a family business, a home or even something as small as jewelry. The Daily Conversation displays a visual by a Harvard business professor whom interviewed five thousand people on their view of wealth inequality in America (YouTube, 2014). As shown in the YouTube video Wealth Inequality In America Daily Conversation proves that society has no authentic awareness on the way wealth is spread among the American people. Out of the five thousand Americans interviewed they thought that the top twenty percent of wealthy people were almost as half the amount of high-middle, middle, and poor class wealth. Ninety-two percent of those people think the ideal wealth should be dispensed nearly equally among the top twenty percent wealthy and middle class with a less portion to the poor class. In reality the top twenty percent of wealthy Americans are roughly three-fourths the wealth compared to the middle and lower class. As mentioned in the article Mobility, measured it shows that â€Å"America is no less socially mobile than it was a generation ago† (The Economist, 2014). The image showed before the article displays a triple bunk bed related to the differences’ between social class constructions. On the top bunk posi tioned the wealthy percent of the population with only two characters, a man and woman. Underneath the middle class is placed then demonstrated as the educated. Next the poor or lower class is detained in a filthy and packed environment. On the sides of the bunk bed are ladders. On the left is a character that seems to be educated and excited to move up the ladder to the top wealthy percentile. Also on the left another educated character is  falling off the ladder showing the immobilization of society. There are many reasons why social mobility is decreasing over the years. Such as the correlation between parents and children, â€Å"†¦the odds that a child born into the bottom fifth of the income distribution will climb all the way up to the top fifth† (The Economist, 2014) is nearly unmanageable. Statistics show that this correlation has not altered over years. Although there is evidence that mobilization is lessening, Americans still believe that the lower class has a chance at climbing the ladder and succeeding, just as mentioned in the YouTube video previously. It may seem nevertheless that class is the only contribution to each individual’s well-being but everyone has intersectionality in society. Class, gender and race include all aspects of who we are and where we are placed among the spectrum. Gender roles are a huge democracy in today’s American society. Yet, they are different in all types of cultures in different parts of the world. It was simply that the women was a housewife and contributed to the man of the household and children as her job. Furthermore the men’s job was to work and bring home the income. Society presents these different types of roles through everyday media. The cheery blossom market mentioned in the YouTube video Medias portrayal of gender roles shows little girls grocery shopping and cooking like women roles should be, so why not learn early? Not to mention the Tonka Pods that are small construction toys to show little boys where they are expected to work (YouTube, 2014). Though parents might think toys are just for children to play with, those â€Å"toys† are molding them for the future. Toys such as Baby Alive or the American Girl dolls, give the perception that its okay for young ladies to have children and that its their role to take care of the child, because they are a the woman. On the a web page called women in advertisements and body image illustrate an image with a woman on the floor seeming to be looking a Christmas card. In the caption of the advertisement it states â€Å" Christmas morning she will be happier with a hoover† this statement undergoes the housewife role. Studies of advertisements in a variety of mens, womens, and general interest magazines have categorized women in various roles: housewife, decorative element, sex object, and dependent on men† (Zimmerman Dahlberg, 71). With the intention of grabbing the man or woman’s attraction to the product based on their gender roles, thus their interest. In addition, race is the  greatest influential on society. Well what exactly is race? Race is grouping of entities that believed to share joint inborn biological characteristics. To start from the beginning slave codes where set to govern slaves, black people. Once it became unconstitutional the black codes where then placed, which are regulations that only affected blacks. As stated before the recreation of systems of discrimination is repetitive. Meaning black codes where only the recreated, yet name change of slave codes. Ne xt the Jim Crow laws were assigned setting segregation status between whites and blacks. Although these laws are not placed today and are considered unconstitutional statistics show that blacks are still the underdogs. The likelihood that a black defendant with a white victim will be prosecuted is significantly more than a white defendant and a black victim. Race has physical and cultural social construction. Physical differences cause the cultural differences. For example within the African American culture there is a battle between the light skin and dark skin men and women. In the Race In Hollywood: Black Actresses Weigh In On The Light Skin Vs. Dark Skin Debate (VIDEO) successful actresses and the lovely Oprah discuses the topic of dark and lighter skin people in the same race. Oprah asked if the actresses wherever denied a part, because it was for the â€Å"prettier black girl, even from their own people† and two mentioned yes (The Huffington Post, 2014). Gabrielle Union mentioned in the video that dark and light skin girls go to clubs and promote against each other. From experience I have personality been a victim of the dark and light skin discrimination. Things like â€Å"our pretty for a dark skin girl† or even â€Å"your dark skin makeup sets well† are a few slurs African American females through at each other. As for the African American race to be the most victimized it is astonishing that there would be hatred against each other. Also, said in the Oprah interview some believe this is the aftermath of slavery that African Americans are still mad, hurt and are continuing to battle against one another because of it. Do you think â€Å"we† are becoming more equal through out history? Although, the reality is that we repeat history. Between class, gender, and race the recreation of systems of discrimination is repetitive. After showing the massive class misconception and non-mobility, gender roles, race against race, yet also against same racial group how well is our society creating a equal nation. References The Economist,. Mobility, measured, 2014. Online. Internet. 11 Nov. 2014. . Available: http://www.economist.com/news/united-states/21595437-america-no-less-socially-mobile-it-was-generation-ago-mobility-measured. The Huffington Post,. WATCH: Actresses Tackle The Light Skin Vs. Dark Skin Debate, 2014. Online. Internet. 11 Nov. 2014. . Available: http://www.huffingtonpost.com/2013/06/26/race-in-hollywood-light-dark-skin_n_3473707.html. Womeninads.weebly.com,. WOMEN IN ADVERTISEMENTS AND BODY IMAGE Overview, 2014. Online. Internet. 11 Nov. 2014. . Available: http://womeninads.weebly.com/index.html. YouTube,. Medias portrayal of gender roles, 2014. Online. Internet. 11 Nov. 2014. . Available: https://www.youtube.com/watch?v=w2bYinZ6RX0. YouTube,. Wealth Inequality In America, 2014. Online. Internet. 11 Nov. 2014. . Available: https://www.youtube.com/watch?v=JTj9AcwkaKM.

Monday, January 20, 2020

Analysis of Curiosity by Alastair Reid Essay -- Curiosity Poem Essays

"More likely the cat was just unlucky" (l. 1-2). In this narrative poem ?Curiosity?, by Alastair Reid, he gives a dissertation on cats and dogs. Cats are adventurous and dogs do not take chances. Reid uses symbols Have you ever heard the saying ?curiosity killed the cat? (l. 1)? and allegory to disclose the theme that life can be more fulfilling if one opens the door to new and different prospects. In ?Curiosity?, Reid describes the lives of cats and dogs as though they are everyday people. Cats, being the inquisitive ones, are willing to lead a life of risk-taking without weighing the consequences. ?Dogs say cats love too much, are irresponsible, are changeable, marry too many wives, desert their children, chill all dinner tables with tales of their nine lives.? (ll. 27-30). Cats feel...

Sunday, January 12, 2020

Job Analysis and Job Design Essay

Job analysis—The procedure for determining the tasks and responsibilities of each a job, and the human attributes (in terms of knowledge, skills, and abilities) required to perform the job. The outcomes of job analysis will be: Job description (what the job entails), Job specifications (what the human requirements are needed for the job). Job analysis is something called the cornerstone of HRM, because the outcomes of job analysis (job descriptions and job specifications) are the basis for most of the interrelated HRM activities, including recruitment and selection, HR planning, training, performance appraisal, pay and benefits, health and safety, labour relation, and so on (you can think about more areas). The Phases and Steps in Job Analysis Phase One: Preparation for job analysis 1. Step 1: Familiarize with the organization and its jobs 2. Step 2: Determine uses of job analysis information 3. Step 3: Select representative jobs to be analysis. Phase 2: Collection of job analysis information 4. Step 4: Determine sources of job data (Human and nonhuman sources) 5. Step 5: Data collection instrument design (Job analysis schedules) 6. Step 6: Choice of method for data collection (interview, observation, questionnaire, etc.) 7. Step 7: Develop a job descriptions and job specifications. Phases 3: Use of Job analysis Information (for other HR management areas) Methods of Collecting Job Analysis Information Collecting job analysis data usually involves a joint effort by an HR specialist, the incumbent, and the jobholder’s supervisor. Job analysis techniques can be categorized into 2 groups: Qualitative methods and quantitative methods. Qualitative methods mainly include 1) Interview, including individual interview, group interview, and supervisory interview 2) Questionnaires—having employees fill out questionnaires to describe the job related information (See Figure 2-4, P. 62-63 of the text) 3) Observation it is useful when jobs consist mainly of observable physical activities. 4) Participant diary/log – Asking employees to keep a diary/log or a list of what they do during the day. Quantitative methods mainly include 1) Position Analysis Questionnaire (PAQ) Very structured job analysis questionnaire Contains 194 items, each of which represents a basic element Provides quantitative job score on five dimensions of job requirements: having decision-making, communication, or social responsibilities performing skilled activities being physical active operating vehicles/equipment processing information Results from PAQ can be used to compare jobs and help determine appropriate pay level. 2) Functional Job Analysis (FJA), a quantitative job analysis method for classifying jobs based on : types and amounts of responsibilities for three functions: data, people, and things the extent to which instructions, reasoning judgment verbal/language facilities required It also identifies performance standards and training requirements. 3) The National Occupational Classification (NOC) –See P. 67-68 of the text Complied by the Human Resources Development Canada An excellent source of standardized job analysis information, containing comprehensive description of approximately 20,000 occupations. A reference tool for writing job descriptions and job specification It’s counseling component: Career Handbook. Classifying system of NOC (See the website: http://www.hrsdc.gc.ca/eng/jobs/lmi/noc/index.shtml) Major group –identified by two digital numbers. Minor group –identified by one digital number Unit group –identified by one digital number Writing Job Descriptions A job description needs to tell: What the jobholder actually does, How he or she does it, and Under what conditions the job is performed The 6 Basic Element of Job Description (See example in Figure2-6, P. 66 of the text): 1) Job identification Job title Department Report to Job status 2) Job summary—describing the nature of the job, listing only its major functions or activities. 3) Duties and responsibilities 4) Authority 5) Performance standards 6) Working conditions Writing Job Specification The 6 basic element of job specification: 1) Job identification * 2) Job summary * Skill factors: Experience 3) Specific skills Education level 4) Effort factors Physical demands Mental demands 5) Working conditions * Notes: items with a â€Å"*† can be the same and combined with those in job descriptions. Job Design Job Design—the process of systematically organizing work into tasks required to perform a job Job Design Considerations (also refer to PowerPoint slides) Organizational considerations Ergonomic considerations Employee considerations (considering human behavioual aspects) Environmental considerations In the history of job design, people usually follow two schools of thinking: 1) To simply the jobs. This practice emphasizes the efficiency of production but pays concern in workers’ well-being 2) To enrich the jobs. This practice emphasizes both efficiency and workers’ needs and well-being The Job Characteristics Model (JCM) To understand this model, we need to understand the basic dimensions and  their relationship to psychological states and work outcomes –See Page 77-78 of the text. The 3 critical psychological states The basic theory underlying the model is that desirable outcomes both for the person, in terms of internal satisfaction and motivation, and for the organization, in terms of high quality performance and low absenteeism and turnover, will result only if the worker can achieve three critical psychological status: 1. The work must be experienced as meaningful, worthwhile, or important. 2. The worker must experience that he or she is personally responsible for the work outcome, that is, accountable for the product of his or her efforts. 3. The worker must be able to determine in some regular and reliable way how his or her efforts are coming out, what results are achieved, and whether or not they are satisfactory. The core job characteristics are then derived by observing what kinds of job characteristics are more or less likely to lead to the desired psychological states. The 5 Core Job Characteristics 1) Skill variety – using different skill and talents to complete a variety of work activities. 2) Task identity – the degree to which a job requires completion of a whole or identifiable piece of work. 3) Task significance – the degree to which the job has a substantial impact on the organization and /or larger society. 4) Autonomy – the degree to which a job gives employees the freedom, independence, and discretion to schedule their work and determine the procedures to be used to complete the work. 5) Job feedback – the degree to which employees can tell how well they are doing based on direct sensory information from the job itself. The Relationship between the above Theories and Management Strategies can be reflexed by various job design strategies as listed below: Strategies for enriching jobs: Based on the Job Characteristics Model, we can employ the job design strategies of: Job rotation –arrange employees to rotate to different job  during a certain period of time. Job enlargement- put more related tasks into a job to make it larger. Job enrichment- let employees have more autonomy and involve in thinking aspects of the jobs. Employee involvement and work teams Use of job families in HR Decisions Increasing job flexibility –cognitively complex, more team-based, more dependent on social skills and technological competence, time pressured, mobile, and less dependent on geography Self-study requirements: Read Chapters 2 and 3 of text Visit the website of National Occupational Classification

Friday, December 27, 2019

Aging and Sexuality Essay - 2548 Words

Many researchers often ask the question, Is sex more important than life itself? In my opinion, I think it could very well be. The procreation and continuation of our species and it s evolution in life will play powerful roles in our development of our lifespan, health and well-being. The desire and intimacy intinct of a male and a female also contribute to the species success. The measures we take to advertise ourselves to the other sex is whats very species specific but unique when viewing sexual appeal. Popular theory of reason for the differences in gender of a woman; is that she is to be selective in the choosing multiple willing suitors to her one egg or offspring. On the other end of the continumn is the competing or†¦show more content†¦I found similar results to those of the website. The two questions that gave significant results following the ageism trend was #9 and #11: Growing old is a natural part of life and The thought of becoming old or older distres ses me Both of these questions consisitently were answered strongly agree. Finding above a ninety percentile agreement supports my old views and adds to the ageism that still existing today. The fact is that is was normal for my grandparents to be doing what they were doing. Being old does not extinquish the passion for having sex. However, it is act of thinking about old people having sex that does. Physical and Psysiological Changes If the spirits are willing but the flesh is weak. This quote is a possibility of aging and its physical and psyiological processes. A woman and a mans features change as they age but many of these changes are innate and are more biologically influenced by the aging process. Although, men tend to have more changes that happen to their body than women, but both have changes. Common and most frequent changes in men that occur are the decreased production of testosterone, size reduction and firmness of the testicles (Texas Tech University, 1998). More common complications involve getting or maintaining erections as a result of the increased prostate glands (Zeiss, 2003). As we grow old into the latter years of our adulthood,Show MoreRelatedBiological, Psychological, And Socio Environmental Factors785 Words   |  4 Pagesbeliefs of the aging body. American society idealizes the youthful body images leaving older adults to feel ashamed of their sexuality. Many older adults engage in sexual activity with a partner. However, desire decreases with relationship longevity. Furthermore, the loss of a partner may decrease sexual interests. DeLamater and Moorman reported similar results in subsequent research in 2007. This study supports the theory that maintaining sexuality intimacy in aging is important to aging health.Read MoreThe Struggles And Needs Elderly Lgbt Individuals Face And Its Effect On Their Aging Process1334 Words   |  6 Pagesface many issues that others do not. Not only do they face discrimination due to their sexuality, but also due to their age and/or gender. The intersectionality of sexuality, age, and/or gender can cause many physical, mental, and emotional health issues which require social work intervention. The purpose of this paper is to analyze the struggles and needs elderly LGBT individuals face and its effect on their aging process. This can be achieved by applying theoretical frameworks such as Erickson’s StagesRead MoreM yth on Aging Essay1593 Words   |  7 PagesThere are many misconceptions when we talk about sex especially to old age generation. During the first day of class in HS 107, we talked about myths on aging. According to many people, they believed that â€Å"Majority of old people have no interest in, nor capacity for, sexual relations† (Facts on Aging Quiz). In our society, many people believe that older adults do not have sex when they reach the certain old age. Many argue that as you grow older your body becomes frail, thus, decreasing and diminishingRead MoreSexuality Within The Older Population1475 Words   |  6 Pages Sexuality within the Older Population Jonelle S. Allen LaSalle University Introduction Sexuality is an important core dimension of life that incorporates beliefs, cultures, rituals, attitudes, values, intimacy and pleasure. The expression of sexuality along with the desire for intimacy can be very complex especially for the older adult. Sexual dysfunction among older men and women commonly increases with age along withRead MoreA Review of Sexuality and the Chronically Ill Older Adult: A Social Justice Issue1341 Words   |  6 PagesIntroduction This article â€Å"Sexuality and the Chronically Ill Older Adult: A Social Justice Issue† is published in the journal Sexuality and Disability and the authors are Verna C Pangman and Marilyn Seguire. The article provides an overview and outline on sexuality in the older adult with a chronic illness. In today’s world, according to Verna C Pangman and Marilyn Seguire, sexuality for the older adult and the elderly is a â€Å"taboo† word, and if mentioned, fear and apprehension by the older adultRead MoreSexuality : Human Sexuality, Sexual Orientation And Sexual Behavior1193 Words   |  5 Pages HUMAN SEXUALITY ReNata Shaw APUS: Human Sexuality Assignment 2 Resubmit Dr. Foster November 29, 2015 Human Sexuality Introduction Sexuality encompasses aspects in a person’s life that involves sex and gender identity, sexual orientation and sexual behavior. It encompasses the physical, social and psychological aspects of a person’s sexual behavior. It underpins what an individual is, affects the individual’s life wholesomely and is unique to each and every individualRead MoreThe Best Exotic Marigold Hotel1681 Words   |  7 Pagesbe the major theme that predominated throughout the film was that being older does not mean that life ends. There are different issues that are dealt with when aging, but that does not necessarily entitle growing and transforming have ended. Each character in the film were dealing with a variety of changes, some which dealt with the aging process and some that can happen at any time in ones life (Hoffman, 2012). Generational Themes There were many generational themes that came to light within thisRead MoreResearch Paper : North Carolina Central University1376 Words   |  6 PagesOutline FCSG 5820 North Carolina Central University I. Introduction (2 pages) Sexuality in aging is an interesting topic being that everyone will age and the information is vital to know. Countless amounts of people want and need to be close to others, as they grow older meaning they yearn to endure a lively, fulfilling sex life. With aging, there might be changes that can produce later difficulties and issues. Typical aging brings physical changes in both men and women. These changes occasionally disturbRead MoreGay, Bisexual, And Transgender Aging : A Comprehensive And Analytical Sociological Perspective On Lgbt Aging849 Words   |  4 Pagesresearch conducted on lesbian, gay, bisexual, and transgender aging (LGBT) and the psychosocial consequences they experience resulting from disparities. The articles, however, differ in that the research takes a one-dimensional approach to an unambiguous issue. Therefore, this paper will focus on the article titled Helping Gay and Transgender People as they Age (McDaniels, 2015) given it offers an interdisciplinary pers pective on LGBT aging. Notably, McDaniels interconnects social, environmental, healthRead MoreReflection Paper On Aging1710 Words   |  7 Pagesthe embodied aging and experience by creating a storyline based on the character, Billy, shared the good news of him finally proposing to his much younger girlfriend with his dearest friends and wanted them to be supportive in his decision-making. All four friends decided to escape from their daily lives a couple of days in order to throw a bachelor party together for Billy in Las Vegas (Last Vegas, 2013). They have been best friends since childhood, yet have experienced a different aging journey (Last

Wednesday, December 18, 2019

How Technology Has Changed Our Future - 2020 Words

Progressing rather than Regression We live in the 21st century where mostly everything is done by technology. In 1965, Gordon Moore predicted that technology would rapidly improve every 18 months. Fast forward to 2016 and we have improved so well technologically that it has become something nobody could have ever predicted. We are living in a golden age of technology with discoveries happen every day. In 2016, we tend to make fun of the technology from five years ago because we can never imagine how we could have possibly survived by relying on such old devices. We strongly rely on technology to help us in every single aspect of life. I personally don’t see that to be a negative thing. We should use the technology to our advantage. We have made groundbreaking innovations thanks to technology. If technology is so great and has helped improved our way of life, shouldn’t we use it to help those that can’t help themselves? It’s the 21st century but our prison systems seem to be functioning as if they’re living in the stone age. I find it to be incredibly irresponsible that the state would allow such poor conditions in our prison systems. We are housing societies criminals but this fact doesn’t give us an excuse to not treat them as if they’re not human. I argue that inmates and prisons should be given resources that can help benefit everyone. I suggest that prisons should improve their auratic resources and change to a more technological system. I argue that the prisonShow MoreRelatedHow Technology Has Changed Our Future?2528 Words   |  11 PagesEmerging nanotechnology Introduction Here discussing about the nano technology it can be seen that the world is going global as well as the use of technology is emerging more and more. Here if we talk about the advancements then we can see couple of good example by looking at which we can say that before things were huge, big in number, but now in this competitive era it is noticed that the technology is too vast that everything is fast and small enough that it is hard to imagine sometimes. MoreoverRead MoreHow Technology Has Changed Our Future Essay1215 Words   |  5 PagesEngineering and technology are some things that continuously improve our future. Computer engineering is a type of science that helps with the advancements of technology in the world. From developing autonomous cars to basic things like computer chips, engineers work on these kind of things every single day. They also either work with the hardware of the computer, which means the physical device, or with software which is the inside of the computer, also known as the coding. In most cases, computerRead MoreHow Technology Has Changed Our Future Essay1487 Words   |  6 PagesWearable technology has been around since the 70’s and continues to shrink in size while growing in functionality. This burgeoning technology is used in clothes, the medical field, for fitness/health applications and as fashion accessories. Now that smart phone innovation has slowed, the technology world is looking for a new gadget to put their interest and money into. Wearable technology could be the answer. One specific piece of wearable technology has enjoyed a recent spike in interest from technologyRead MoreHow Technology Has Changed Our Future1577 Words   |  7 Pages Many achievements have been accomplished in recent decades in almost every area of technology in connection to engineering, computer science, manufacturing, medicine, and etc. In today s current times, technology impacts individuals directly or indirectly from laptop to smart phones usage for perso nal use, at work, home and school. College students have been directly influence by the new technology in their studies since now day’s personal laptop is a requirement for certain classes, assignmentsRead MoreHow Technology Has Changed Our Future1833 Words   |  8 PagesIntroduction Many achievements have been accomplished in recent decades in almost every area of technology in connection to engineering, computer science, manufacturing, medicine, and etc. In today s current times, technology impacts individuals directly or indirectly from laptop to smart phones usage for personal use, at work, home and school. College students have been directly influence by the new technology in their studies since now day’s personal laptop is a requirement for certain classes, assignmentsRead MoreHow Technology Has Changed Our Future1861 Words   |  8 PagesMany believe that technology has given our generation many new opportunities that have never been given to any generation before us, and it continues to do so. It provides us with what we might call a â€Å"Perfect World.† New and advanced technology in the coming years may help track our thoughts, improve better decision making, may be enhance our physical and intellectual traits all together. With the pre sent and emerging technology, that will create our â€Å"Perfect World†, there are questions and concernsRead MoreEssay Technology1449 Words   |  6 Pages Technology is a knowledge of using tools and machines to do tasks more efficiently. We use technology to control the world we live in. Since the art of making fire and creating handcrafted tools, our civilization has come a long way. Science and Technology are making advances at an astonishing rate. From telephones to the Internet, calculators to computers, cars to rockets and satellites, we are part of a new world of discoveries and inventions made possible by Science. Fields like Medicine andRead MoreSmartphones Are Changing Our Future Essay1390 Words   |  6 Pageslittle over 200 years later. The introduction of the telephone to homes changed the manner in which society communicated. Gone were the days where one had write a letter, or go to see a neighbour, simply to communicate. The social change was much greater than technology behind the telephone itself; it changed the landscape of communication. As the telephone progressed into a rotary dial telephone, then to push button technology, the means of communication did not change much from then, until the inventionRead MoreDigital Revolution1172 Words   |  5 Pagesconsumer behaviour† What is Digital Revolution? It is the change to digital technology from analog mechanical and electronic technology which happened during 1980s and still going till today. What is Marketing? Marketing is a process of selling and promoting good and services; it involves market research as well as advertising. What is Consumer Behaviour? It is a study about people, who are consumers of how, why, when, and where they do or don’t buy a good or a service, it is a study ofRead MoreFuture Of Technology704 Words   |  3 Pages Technology is a part of our past, present, and future. Without technology who knows where our society would be right now. As we find new technology and improve current technology, it changes our future. The future is very uncertain, but the one thing we do know is that technology will continue to become more advanced and change our lives. Looking back in the early days where technology was very limited, to where our society is astonishing. The telephone was a huge technology jump. Alexander Graham

Tuesday, December 10, 2019

Daphnia Lab Report free essay sample

The Effect of Temperature and Epinephrine on The Heart Rate of Daphnia Leslie Orzetti-Gollhofer Gaby Macias   The Daphnia is a Crustacean other known as the water flea. It lives in small bodies of freshwater. The Daphnia is ectothermic, meaning it controls its body temperature through external means. With this experiment we experienced first hand what the effect temperature has on a Daphnia’s heart rate. We also experimented what effect epinephrine has on a Daphnia’s heart rate. If we add hot water, then the Daphnia’s heart rate will increase. If we add cold water, the Daphnia’s heart rate will decrease. If we add epinephrine, then the heart rate will increase. A pipet was used to place the Daphnia with water on a glass slide. The slide was then placed under a glass microscope to be observed for the experiment. A tally counter was used to count the heart rates of the Daphnia when it was placed in warm water, under ice and in epinephrine. We will write a custom essay sample on Daphnia Lab Report or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page When we experimented what the effect temperature has on the Daphnia’s heart rate, we started with an average control of 64 beats in 15 seconds. After placing the Daphnia in warm water the average heart rate went up to an average of 72 beats in 15 seconds, with an average increase of 12. 5%. When we placed the Daphnia over ice the average heart rate decreased to an average of 43 beats in 15 seconds, with an average decrease of 33%. When we experimented what the effect of epinephrine has on the Daphnia’s heart rate, we started with an average control of 73 beats in 15 seconds before adding epinephrine. When the epinephrine was added to our experiment the average heart rate increased to 83 beats in 15 seconds. , with an average of 14%. After the epinephrine was diluted from the slide the average heart rate returned to an average of 78 beats in 15 seconds, with a decrease of 7% from the heart rate with epinephrine After putting the Daphnia in warm water the average heart rate increased by 12. 5%. The average heart rate then decreased by 33% in cold water. This is because they are cold-blooded animals; therefore they cannot go through thermoregulation.