Effect of Social Media on Nigerian Undergraduate Essay Example for Free

Effect of Social Media on Nigerian Undergraduate Essay Rapid growth of popular online communication mediums has introduced new ways for the students to communicate. The vast array of social communication changes introduced by the relatively young prologue of social network site mandate the essences of this study. This study accessed the influenced social media (facebook in particular) on Nigeria youth in the higher institution. Specifically it attempts to collect facts on the positive and negative influence of facebook on Nigeria youth. Background of the Study  New type of communication influence by rapidly changing internet-based-technologies have spurred research on mass communications theory(Ruggerio,2000). during the period of 1988 to 1998 the internet grow nearly 100 percent every year as of January of 1998,it was estimated that 102 million people were using the internet globally(Bastian,1998). in 2007, the pew internet American life project forecasted that between 165 and 210 million users were surfing the internet in the united states alone (fallows,2007). Between November of 2006 and December of2009,the pew Internet American life project found that teenagers and young adults were consistently to highest users of the internet. social network sites, in particular, have provide a prominent medium for relationship formation (valkenburg, Peter sebouten,2006). As the internet quickly grow many key online technologies began to take shape. In 2008, social networking site were among the fastest rising most visited websites. CBC News reported that the popular social networking website Facebook jumped from the 60th most visited website to the 7th most visited website in 2008. One social network site in particular has become one of the most visited internet websites in the world. Initially started in February of 2004 by Mark Zuckerberg, the social network site Facebook. com has become largely popular. Its mission has been to â€Å"give people the power to share and make the world more open and connected† (Facebook. com, 2009). Millions of users are empowered to communicate with friends, share information such as photographs and videos, and learn more about the individuals they meet on Facebook everyday (Facebook. com,2009) At the time of data collection for this study Facebook. om had over 900 million active users, approximately half of Facebook’s active users log into Facebook on a given day. In addition, users have historically spent 500 billion minute per month on Facebook (Facebook. com, 2010). As of spring of 2010, Facebook had become the most popular social network site in the world. As online social networking grows in popularity the number of users placing personal information online does as well. Studies as shown that undergraduates put high levels of personal information online/ including inappropriate and appropriate information,which can be easily accessed by anyone.  This study focused on the influences of social networking on undergraduate that are using Facebook. This literature review discusses the previous research and findings on the influence of Social Media (Facebook) on undergraduate, youth and children. According to data gathered from several sources by Online Education . net. Social media may have positive impact on students’ sense of themselves in the community. social media-using students were twice as likely as other students feel well-liked by their peers and to participate in extracirricular activities. And more of Facebook-using students (as compared to students who didn’t use Facebook) said they felt connected to their school and the world. However, negative effects abound student who use Faceebok and hit the books simultaneously found their multitasking led to a lower grades than those of their more focused peers. Not only do grade suffer, but students might actually end up feeling depress. As Facebook’s dominance continues to grow, we are starting to realize the impact it is having in society, particularly on youth. DR. Larry Rosen, a professor of psychology at California State University, Dominguez Hills, researches on how technology impacts youth. Rosen presented his study at the 119th American Psychological Association Convention in Washington DC. His findings are based on survey responses from computer-based surveys distributed to 1,000 urban adolescents and his own 15-minute observation of 300 teenagers that were studying. Rosen said in a presentation title† Poke Me: How Social Network can both Help and Harm Our Kids. He said his research found both negative and positive influences linked to social networking. Rosen’s top three potential negative effects of Facebook; 1. Teenager who use Facebook more often show narcissistic tendencies while young adults who have a strong Facebook presence show more sign of other psychological disorders, including antisocial behaviours, mania, and aggressive tendencies. 2. Daily over use media and technology has a negative effect on the health of all children, preteens, an teenagers by making them more susceptible to future health problems’ 3.  Facebook can be distracting and can negatively impact learning. Studies found that middle school, high school, and college students who checked Facebook at least once during a 15-minute study period achieved lower grades. Rosen’s top three potential positive effects of Facebook; 1. Young adult who spend more time on Facebook are better at showing â€Å"virtual empathy† to their friends 2. Online social networking can help introverted adolescents learn how to socialized behind the safely of various screens, ranging from two-inch smart phone to 17-inch laptop.   3.  Social networking can provide tools for teaching in compelling ways that engage young students. Jasmine, P. (2011) rightly said; today youth is addicted to social networking site like orkut, Facenook, e. t. c. But nowadays especially Facebook is most popular amongst youth. Due to this over indulgence, their studies suffer a lot. Even it not only hinder their studies but also their physical, social, mental and ethic growth. Children have become couch potato. Parents are under stress to see their children spending more and more time on this social network sites. ot only children became a prey of these but every age group fascinated of this sites. this sites are meant for connecting people, to make them socialize, communicate with each other, share videos, photos, their past memories etc. but people especially youth used whole day wasting their time on this sites. they are addicted to this sites. Mose Jator(2011)also has this to say; social networking is good to some extent that people share views and ideas as well as keep in touch with friends and love ones. ooking at it on the other hand, you will discover that people today tend to use this avenue for their selfish interests which in most cases offend public decency. Some use fake identity. Looking at it on the other hand, you will discover that people today tend to use this avenue for their selfish interests which in most cases offend public decency. Some use fake identities with the sole aim of cheating hence the prevalence of cybercrime. Many youth today found themselves in one secret society and either consciously or unconsciously through social networking. Walther (1995) postulates that computer-mediated communication(e. g. social network)offers additional opportunity for students with limited amounts of time for socialization to develop their personal relationship than their face-to-face peers(as cited in Mazar, Murphy Simonds,2007). Methodology The intent of this study is to examine the influence of facebook on undergraduates. it seek to determine the positive and negative impact of facebook have on undergraduates attitude, grade and social life. An interview with 15 respondent from the major higher institutions in kwara state. Interview guide was used in collecting in-depth or rich data from the respondent. the purpose of this section is to describe the methodology used in this qualitative study. Findings Social media has become an integral part of our lives and no group feels it impact more than students. Facebook started on college campuses and it continue to thrive there the most. there’s no doubt that social media has had a huge impact on the lives of students, but what’s less clear is whether this impact has been good or bad. As a result of the interview guide administered to undergraduate of higher institution of Kwara state. Akinkunmi Jayeola, a business study student of Kwara state polytechnic posited that facebook are good platform for sharing what’s in your mind, a good medium of communication, easiest and cheapest means of communication. it’s a good way to stay connected with your friends in this fast going trend. You get a good knowledge about present going things. He later go further by pointing out the negative side of it by stressing that, if you give it so importance it will make you as slave. Another opinion from Afolayan Kabir another student from same institution also elaborate what Akinkunmi has said by stressing that facebook is good to use if we use it to some limit. it help us in improving our communication, use for creating awareness and negative aspect of it is that students waste too much time on this site. Baderu Ayotunde also have something to say; he rightly stress that it is good for student to use facebook if it is used in a right way because it a means for individual to explore the world without physically taking risks. nother student expositing on Baderu’s point of view that facebook is a good things for youth of Nigeria to think beyond friendship to close or old friends and new friends around the globe, one can share thought to each other and exchange the knowledge. he further enriches his point by sitting instant like; Today if breaking news happens before the news channels flashes, facebook flashes up the detail which were uploaded or shared by t he nearby person using facebook. he took his stand that to him that facebook is the way to develop the people of Nigeria and aware them. Najeeb Blogun student of university of Ilorin held a contrary opinion by stating that facebook have a negative impact on youth by spoiling their life and killing their most valuable time in chatting rather than spending time more on their studies. He go further by also positing that youth are cheatting one another by their false name on facebook, like a boy coming into facebook and introducing himself as a girl to divert attention towards himself and exploiting the people’s mind, it may also increase terrorism. In exploring the underlying structures of influence of facebook on Nigeria youth, the fact deduce is that facebook site has became the means of communication where individual were connected with friends and relatives with this sites as they don’t have enough time to spend with their friends in their busy schedule they can stay connected with them by sharing their feelings, thoughts, pictures etc. It’s the easiest and cheapest means of communication as now that internet is easily accessible to everybody. As anything that exceeds its limit becomes addiction therefore this can affect anyone that got addicted to facebook. The information uploaded can be misused by the people so it increases the question of privacy. so adaptation of things in limited ways is important.

Barium :: essays research papers

Barium is a soft, heavy, silver-colored metal element. This element does not have very many uses outside of the laboratory, but it combines easily with other chemicals to form compounds used for important industrial uses. For example, Barium carbonate is used in the manufacture of ceramics and special glass, and also to purify certain chemical solutions. It is also an ingredient in clay slurries, also known as water muds, used in drilling oil wells. Barium titanate is used in sonar detectors and other electrical equipment. At low doses, barium acts as a muscle stimulant and at higher doses affects the nervous system eventually leading to paralysis. Acute and subchronic oral doses of barium cause vomiting and diarrhea, followed by decreased heart rate and elevated blood pressure. Higher doses result in cardiac irregularities, weakness, tremors, anxiety, and dyspnea. A drop in serum potassium may account for some of the symptoms. Death can occur from cardiac and respiratory failure. A cute doses around 0.8 grams can be fatal to humans. Barium nitrate makes signal flares burn with a green flame. Barium ferrite is used to make magnets. Barium sulfate is an extremely insoluble barium compound that is not poisonous. Doctors use it in X-ray examinations of a patient's digestive system. The barium sulfate absorbs X rays to show an outline of the intestines on the developed film. A barium enema is performed to examine the walls of the colon. During the procedure, a well lubricated enema tube is inserted gently into the rectum. The barium is then allowed to flow into the colon. The flow of the barium is monitored by the health care provider on an X-ray fluoroscope screen. The test is used to detect colon cancer. The barium enema may also be used to diagnose and evaluate the extent of inflammatory bowel diseases. Barium sulfate and zinc sulfide form lithopone, a white coloring matter for paint. Barium is never found in a pure state because it combines so easily with other elements. Pure barium is obtained by passing an electric current through a fused barium compound, such as barium chloride. A piece of barium metal quickly reacts with oxygen and water vapor in the air to form barium oxide. It must be stored under kerosene to keep it pure. Barium is found most often as barium sulfate in the mineral barite. The chemical symbol for barium is Ba.

The Ability of Yeast to Ferment Sugar Molecules

All cells need to have a constant energy supply. The two processes by which this energy is attained from photosynthetic materials to form ATP are cellular respiration and fermentation. (Hyde,2012). Fermentation is a way of harvesting chemical energy that does not require oxygen. (Reece et al. 2012). When the body is deprived of oxygen it will then begin to meet its energy needs through the slow process of fermentation. In our lab we investigated alcoholic fermentation by using yeast, which can flourish in an low energy environment in anaerobic conditions.In this lab our goal was to discover the rate at which yeast will ferment different sized molecules of carbohydrates. In order to perform our experiment we made use of water, glucose, sucrose, and starch. It was hypothesized that glucose, sucrose, then starch would all be used to produce energy during fermentation. Being that glucose is a simple sugar, or monosaccharide, we predicted that glucose would be fermented most quickly. This hypothesis was made based on the idea that glucose is the cell's main source of energy in aerobic cellular respiration. The first step of cellular respiration is glycolysis which breaks down glucose for energy.We predicted that Sucrose would ferment second to glucose since it is a larger molecule composed of glucose and fructose. Finally, we predicted that starch would ferment extremely slow behind all of the other carbohydrates. METHODS AND MATERIALS: On October 31, 2012 in the lab of Greenfield Community College my lab partners, Madeline Hawes, Timothy Walsh and I conducted the following experiment in order to test the effectiveness of yeasts' ability to ferment different carbohydrates. We first filled 6 small flasks with 75 ml of water and 5 drops of phenol red to each flask.Four of these were labeled with the solution that would feed into them and the other two with â€Å"control† and the last with â€Å"increased CO2. † The color of phenol red is orangish-pink wh en there is a neutral pH present. As carbon dioxide is released into this solution from the release of the gas from the yeast filled flasks, the solution turns a light yellow indicating a weak acid. We measured out four weigh boats of 2 grams each of starch and then added 2 grams to each of 4 labeled flasks of 50 ml water, 50 ml Glucose solution, 50 ml Sucrose solution, and 50 ml Starch solution respectively.All of these had been stored in incubators to maintain an optimal temperature of 35 degrees celsius. We put these flasks into our sink which we made into a water bath. We then drained and added hot plate warmed water from a 1000 ml beaker we kept heated in order to maintain the optimal temperature of 35 degrees celsius around the flasks. We swirled the large flasks to mix the solutions and yeast as they sat in the water bath. The flasks containing the yeasts solutions were then stoppered with glass straws and tubings and their extending tubes placed into the matching labeled sma ller flasks adjacent to the sink.I blew through a straw into the flask labeled â€Å"increased CO2. † The phenol red detected the presence of CO2 turning the solution yellow. The â€Å"control† flask was left as a comparison for the remaining yeast filled tubes feeding into the other flasks of phenol red and water. RESULTS: We recorded our first observations at 10 minutes. Just as we hypothesized, the yeast and water experienced no change. In the glucose solution flask, the glucose molecules were being quickly broken down and forming a frothy head, sending a bubble of CO2 through the tube every 2 seconds while turning the phenol red to a light orange.The sucrose solution was bubbling every three seconds and also had turned light orange. At 10 minutes there was no reaction in the Starch solution. The latter data remained consistent with our hypotheses. The glucose solution at 20 minutes was very frothy and bubbly and had turned the phenol red a very light yellow with a consistent bubble through the tube every second indicating a strong presence of CO2. The sucrose, too, had turned light yellow and had continuous bubbles every 2 seconds. The starch had a rare bubble with no noticeable change in the phenol red solution.At the final check in of 40 minutes both the glucose and sucrose had fermented most of the yeast and slowed down on bubbling. The glucose still had the most bubbles occuring. The starch was a lighter pink with little change in the levels of froth in the yeast solution. The water solution still remained completely unchanged. DISCUSSION: Our hypotheses were supported through illustrating that all forms of sugar do provide energy and that glucose, being the smallest molecule, was the most efficient. The control tube contained no sugar and therefore produced no energy. A source of sugar is necessary for glycolysis and fermentation to occur.The strongest presence of carbon dioxide was in glucose, indicated by the bubbles which are a by-pro duct of ethanol fermentation. The rate of fermentation in sucrose was second to glucose and Starch was the least effective at providing a sugar to create energy. The large polysaccharide was difficult for yeast to break down to create the necessary energy that would produce carbon dioxide. Glucose is the most efficient sugar as it is a small monosaccharide which is already the source of energy for the Glycolysis cycle. The largest possible source of error in our experiment is the time in which each solution began its fermentation process.We added the yeast into each flask containing the sugar solutions at staggered times. If this experiment were to be repeated it would be more precise to have four people pour in the yeast and swirl at the exact same time and then stopper the solutions. The only minor inconsistency would be the amount of yeast that was spilled or left in the weigh boats. This could create a discrepancy in the final results. Through this lab I understoodd that in time s of oxygen deprivation the body can still function through the process of fermentation.The yield of 2 ATP molecules is enough to keep muscles contracting for a short period of time when oxygen is scarce. Through the fermentation process NAD+ is regenerated as pyruvate is broken down to CO2 and ethanol. This allows the anaerobic production of 2 ATP molecules. (Reece et al. 2012). In essence, keeping cells alive that may otherwise die without the energy to provide for muscle contractions of the heart.LITERATURE CITED: Reece, Taylor, Simon, Dickey, and Campbell. , Biology: concepts & connections. Pearson Benjamin Cummings, San Francisco, CA. Pgs. 100-101 Hyde, A. October 31, 2012

Female Serial Killers - 773 Words

FEMALE SERIAL KILLERS Rudyard Kipling once said that the female of the species is far more deadly than the male. Female serial killers more than prove that theory, yet they have always been something of an anomaly in criminology and a puzzle for law enforcement. These are the quiet killers, every bit as lethal as their male counterparts, but we are seldom aware of one in our midst because of their low visibility. Most female crime is hidden. Kelleher Kelleher (1998) argue that female serial killers are more successful, careful, precise, methodical, and quiet in committing their crimes. They examined 100 cases since 1900 and found an average duration of 8 years before being caught -- double that of the male serial killer.†¦show more content†¦Throughout history the majority of female killers have murdered out of greed, passion, or self defense. True female serial killers are rare. Aileen Wuornos (known also as Lee) was born on the 29th of February 1956. Her natural mother, only 17 at the time, gave her to her grandparents to rise. Both grandparents were alcoholics, and especially her grandfather was abusive towards her. The family was poor and Aileen often resorted to prostitution in her early teen years, to get enough food to eat at school, and later alcohol and cigarettes. By the time she was 14 she was pregnant. It was immediately put up for adoption. After this Aileen dropped out of school and embarked on a lifestyle of prostitution and petty theft to support a growing drug and alcohol problem. Eventually Aileen married at the age of twenty-one to sixty-nine year old Lewis Fell. The marriage was short lived and failed, due to Aileens drunken and violent nature. Her lifestyle after the divorce was to take an even further downhill spiral; she was incarcerated for armed robbery for a year. 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He was doing robberies and went home and slept lik e a baby. He was proud of what he did.† (International, 2012) Real life serial killers do not have any empathy