Wednesday, December 25, 2019

The Impact Of Cell Phones On Health - 1551 Words

The Impact of Cell Phones on Health The invention of the cell phone and newer â€Å"smart† technology has brought about many positive uses and entertainment. But there are many downsides that aren’t as obvious. Cell phones, no matter how useful, still pose many hazards to our health such as: distracting us from other tasks and affecting our bodies. The everyday use of cell phones has many negative effects on individuals and society. Cell phones affect people in many physical ways. There have been many studies dedicated to finding if the use of cellphones can lead to cancer. This concept has been proved and disproved through the years as technology has improved and our understanding of the radio waves and what they do becomes clear. Recent studies have found that there may actually be a connection. â€Å"Yakymenko’s meta-study reveals many findings of previous researchers into how radiofrequency from your phone can damage DNA†( Engel).†Radiofrequency exposure from mobile phones is concentrated to the tissue closest to the handset, which includes the auditory nerve. If this type of exposure increases tumor risk, acoustic neuroma would be a potential concern.†( Stefan). Children are at higher risk because their brains are developing and are more sensitive to those frequencies. There have also been studies that show a correlation between cell phones and infertility in adults. A study in April of 2015 showed a significant decrease in sperm activity and mobility when exposed toShow MoreRelatedThe Impact of Cell Phone Radiation on Our Health3234 Words   |  13 Pages Cell phones represent a type of technology that has been around for more than over fifty years; it has only been recently that many people began to use cell phones as a major part of their everyday life. In the past cell phones were for business people to conduct their business, but in today’s society every one owns a cell phone. Cell phones are interesting, useful and also play a major role in our life’s bringing people closer and keeping in touch with one another. Most people do not know and understandRead MoreCell Phones Vs. Society1251 Words   |  6 PagesCell Phones Vs. Society: Have you ever seen a car accident caused by texting and driving? Have you ever had a conversation with someone where they pulled out their phone and completely disconnected? If so, you have felt a few of the many negative effects cell phones have on society. Today, technology is constantly evolving, taking new forms, updating, and finding its way into more and more of users lives. Most people are comfortable with this, especially the youth of today, as they have been aroundRead MoreImportance Of Cell Phone Safety Essay1056 Words   |  5 PagesThe cell phone safety In spite of the fact that cell phones convey a few expediency and advantages to our lives, they additionally have some possibly unsafe impacts. Disclosure of cell phones has been one of the critical technological progress lately. A portion of these effects has contributed emphatically to our lives, yet at the same time, others have affected contrarily. The cell phones have had a noticeable effect on the social life of individuals. In any case, cell phones have accompaniedRead MoreCell Phone Use A Social Addiction939 Words   |  4 PagesToday’s society is a generation that is being raised on conveniences, and with this generation, cell phone use has exploded. Millions of people are obsessed with their cell phones and literally will not leave their house without it. People center everything they do around their cell phone. People are checking their text messages and social media day and night. They face time, tweet, Pinterest, Instagram, and Snapchat. Teens on their smartphones. Photo Credit Highwaystarz-Photography/iStock/GettyRead Morecell phones: how have they changed us socially927 Words   |  4 Pages Cell phones: How Have They Changed Us Socially? Introduction Thesis Statement: Cell phones have socially changed our lifestyle and have greatly influenced our lives. Alternatively referred to as a cell, cellular, and cellular phone, a cell phone, which is also sometimes abbreviated as â€Å"cp† is a mobile phone or portable phone that enables a user to communicate almost anywhere in the world. The cell phone was invented by Dr. Martin Cooper who led a team of developers at Motorola and madeRead MoreThe Increasing Rate Of Mobile Phones1080 Words   |  5 Pagesincreasing rate of mobile phone use can be detrimental and can cause many health related issues among adolescents. According to WebMD (2016), children and kids spend more than seven hours a day on their phones, which is nearly fifty hours per week. Nowadays, many children and kids are exposed to cell phones as being part of their daily lives: texting, calling, using them as alarm clocks, listening to music, watching videos, playing games etc. The radioactive waves exposed from cell phones poses many potentialRead MoreEssay The Emotional Impact of Cell Phones on Teens789 Words   |  4 Pages People have cell phones everywhere, especially teenagers. Teenagers are glued to their cell phones; they need cell phones almost everywhere they go. Today teens are depending on their phones for everything. The number of cell phones users has increased and as of 2010, there were more than 303 million subscribers in the U.S., according to the cellular companies (Hanna). As a result of teenagers over using cell phones, teens are being impacted emotionally, socially, and physically. One wayRead MoreCell Phone As The Main Tool Of Communication1040 Words   |  5 Pagesincreasingly. Mobile phone as the main tool of communication comes into people s daily life. With the development of science and technology, cell phones provide people an easy, and fast way of communication. The cell phone is easy carry, and it helps people keep in touch with others. This is a reason why most people choose the cell phone as their main tool of communication. People rely on their phones. Cell phone has almost become an indispensable part of life. Mobile phones help people contact othersRead MoreGrowing Technology1448 Words   |  6 PagesJonathan Rowe’s essay, â€Å"Reach Out and Annoy Someone,† he illustrates his frustration with the new technology better known as a cell phone. He focuses on the negative impact cell phones have on people’s lives and how addicting it is. Cell phones have advanced so much to the point where it is giving a new life to society itse lf. Technology can leave both a positive and negative impact on the American families and society in general. To begin, current technology can increase a family’s communicationRead MoreImpact Of Cell Phones On Society1509 Words   |  7 PagesImpacts of Cellphones use in Society Advancements in technology have resulted in the invention of devices and machines that increase the efficiency and quality of life. Notably, the design of the cellphone and the internet highlights the latest technology that captivates both young and old. Mobile phones have become an integral part of our society. Primarily, the development of cellphones which combine different sophisticated features has made the device one of the necessities of life. So far, statistics

Tuesday, December 17, 2019

Competition Perfect Competition Is An Economic Concept...

Question 7 Perfect competition: Perfect competition is an economic concept, there are lots of seller’s sells homogeneous products in the market and there are many buyers. There are no barriers to enter into the market. Furthermore both the buyers and sellers have good information regarding price so that sellers can offer a competitive price to the buyers and also buyers can compare the price to have the best choice. Monopolistic competition: Monopolistic competition is market structure in which firms have lots of competitors in the market but everyone sells slightly different products. Examples grocery shops and Restaurants in Newzealand. Oligopoly: Oligopoly is a market structure where there are a few sellers selling slightly different products to each other in the market but have significant influence in the market price. Examples banks and Airlines. Monopoly: Monopoly is a market structure where there is an only one seller sells product in the market. There are no any competitors in the market and firm have full control on the price. Characteristics of each market structures: ï  ¶ Perfect competition 1) There is no need for government regulation expects to make markets more competitive. 2) There are huge numbers of competitors in the market 3) Firms produce homogenous products which are not branded. ï  ¶ Monopolistic competition 1) Each company can makes their own decision regarding price and output based on its products. 2) All firms are able to enterShow MoreRelatedExplain, and Illustrate Using Graphs, Whether You Think a Perfectly Competitive Industry or a Monopoly Industry Leads to More Efficient Outcomes for an Economy1740 Words   |  7 Pagesdefined as a study of how economic decisions are made by individuals and groups along with the range of factors affecting those decisions. In relevance to this, the analysis of perfect competition and monopoly regarding efficiency is considered one of the most core basis to the understanding of Microeconomics. This paper argues that a perfectly competitive industry leads to more efficient outcomes for an economy than a monopoly does. In this essay, I will first define the concept of two market structureRead More Challenging Comparative Advantage Essay1410 Words   |  6 Pagesunderlying assumptions of comparative advantage depend on states of economic equ ilibrium and an absence of economy of scale. In reality, economies are dynamic and subject to innovation and interference; which has led to revised assumptions of return and competition (Krugman, 1987). These factors have created questions of free trade and governmental participation in an economy by the development of strategic trade policies. These new concepts do not replace the theory of comparative advantage; howeverRead MoreImportance Of Economic Market Structures1406 Words   |  6 PagesImportance of Economic Market Structures Before an organization or investor makes a strategic decision to enter a product in today’s economy, a thorough market analysis is vital to fully comprehend the domestic and international demand, current suppliers, entry and exit barriers present, and cost of production for the product or service being provided. The culmination of this investigation identifies the market structure the product resides in, associated potential long-run profitability, costRead MoreHow Different Aspects Of Economics Affect The Consumer And How Helpful It Is1228 Words   |  5 Pages Introduction To Economics Music Video Essay Caitlin Brice St. Petersburg College Abstract This essay will be explaining how different aspects of Economics affect the consumer and how helpful it is for people to understand them. Different economic ideas and concepts will be explained in detail and will include examples displaying how it applies to the average consumer. The vocabulary being explained will be terms that will indefinitely affect every consumer and will showRead MoreEconomics : Economics Of Business1361 Words   |  6 PagesHND Accounting Economics FINAL REPORT: The Economics of Business DUE DATE: 20 May 2015 Catherine Macintosh 11006620 For the attention of Sarah Sutherland Word count: 1,243 (Excluding Acknowledgements, Abstract/Executive Summary, Terms of Reference, References Appendices TABLE OF CONTENTS Page 1.0 Costs 3 1.1 Total costs 3 1.2 Average costs Read MoreThe Strength of Competitive Analysis905 Words   |  4 PagesOUTLINE INTRODUCTION: Competition Theories Compete It is never doubted by academic circles and business environments that the strength of competitive analysis, if not the top, is one of the most important critical success factors in creating and managing marketing strategies. The way a business adapts to competitive environments, characteristic of its focus being self-centered, competitor-centered, customer-driven or market driven (Day and Nebugandi, 1994), will define its placeRead MorePerfect Competition : A Competitive Market1068 Words   |  5 PagesPerfect Competition A perfectly competitive market is a hypothetical market where competition is at its greatest possible level. Economists argued that perfect competition would produce the best possible outcomes for consumers. Key characteristics †¢ Perfect knowledge – knowledge is freely available to all participants, which means risk-taking is minimal. †¢ Rational Decision – Maximize their self-interest – consumers look to maximize their utility, and producers look to maximize their profits. †¢Read MoreThe Concept of Comparative Advantage1459 Words   |  6 Pages The comparative advantage The concept of the comparative advantage was first coined in 1817 by economist David Ricardo, in his On the principles of political economy and taxation. The underlying idea of the comparative advantage theory is that the countries possess different resources and capabilities and they can produce some specific items in a more efficient manner than other countries can produce the same items, or more efficiently that the same country can produce other items. In suchRead MoreMarket Structure Of The Company Essay1088 Words   |  5 PagesMarket Structure Introduction There are four types of market structures and they are monopoly, perfect competition, monopolistic competition, and oligopoly. What is a market structure? A market structure is â€Å"the makeup of the companies operating in a particular market.† Why is the market structure important to the producer as well as the consumer? It distinguishes the difference in seller numbers, buyer numbers, seller entry barriers, and buyer entry barriers. The main differences in market structuresRead MoreMicroeconomics: The Foundation behind Small Businesses1130 Words   |  5 Pagesand vitality in the specific area of the United States economic development. Small businesses play a huge role in how the business world is shaped. Entrepreneurs are smart, creative and innovative however, those same entrepreneurs need to have some knowledge that the study of microeconomics focuses on. With the study of microeconomics, their product or future business will succeed in an economic view point. Microeconomics analyzes economic decisions on the micro or small level. This includes how

Monday, December 9, 2019

Bacterial Growth Essay Research Paper Bacterial GrowthBacteria free essay sample

Bacterial Growth Essay, Research Paper Bacterial GrowthBacteria are the most common and ancient micro-organisms on Earth. Most bacteriums are microscopic, mensurating 1 micrometer in length. However, settlements of bacteriums grown in a research lab petri dish can be seen with the unaided oculus. There are many divisions and categorizations of bacteriums that assist in placing them. The first two types of bacteriums are archaebacteria and eubacterium. Both groups have common ascendants dating to more than 3 billion old ages ago. Archaebacteria live in environments where, because of the high temperature, no other life can turn. These environments include hot springs and countries of volcanic activity. They contain lipoids but lack certain chemicals in their cell wall. Eubacterias are all other bacteriums. Most of them are phototrophic, i.e. they use the Sun s energy as nutrient through the procedure of photosynthesis. Another categorization of bacterium is harmonizing to their demand of O to populate. Those who do necessitate O to populate are considered aerobes. The bacteriums who don T usage O to populate are known as anaerobes. The form of specific bacteriums provides for the following measure in the designation procedure. Spherical bacteriums are called coccus ; the bacterium that have a rodlike form are known as B ; bottle screw shaped bacteriums are spirilla ; and filiform is the term for bacteriums with a filamentous visual aspect. Hans Christian Joachim Gram, a Danish microbiologist, developed a method for separating bacteriums by their different reaction to a discoloration. The procedure of using Gram s discoloration is as follows: the bacteriums are stained with a violet dye and treated with Gram s solution ( 1 portion I, 2 parts K iodide, and 300 parts H2O ) . Ethyl intoxicant is so applied to the medium ; the bacterium will either continue the bluish colour of the original dye or they will obtain a ruddy chromaticity. The blue colored bacteriums are Gram-positive ; th e ruddy bacteriums are identified as Gram-negative. Bacteria contain DNA ( deoxyribonucleic acid ) merely like all cells. However, in bacteria the Deoxyribonucleic acid is arranged in a round manner instead than in strands. Bacteria besides contain ribosomes which, like in eucaryotic cells, supply for protein synthesis. In order for a bacteria to attach itself to a surface, it requires the assistance of pili, or capillary growings. Bacteria, merely like sperm cells, have flagella which assist in motion. But, sperm cells merely have one scourge, whereas bacteria contain scourge at several locations throughout their organic structure surface. Although most bacteriums are non harmful, a little fraction of them are responsible for many diseases. These bacterial pathogens have affected worlds throughout history. The pestilence, an ill-famed disease caused by bacteriums, has killed 1000000s of people. Besides, such a disease as TB, a disease responsible for the lives of many, is caused by bacterial pathogens ingested into the organic structure. Bacteria affect everyone in their day-to-day life because they are found about everyplace. They are found in the air, in nutrient, in life things, in inanimate things, and on every conceivable surface. Escherichia coli is a disease doing Gram-negative B. These bacteriums are normally found within the bowels of worlds every bit good as other craniates. This widely dispersed bacteriums is known to do urinary piece of land infections every bit good as diarrhoea. Microcococcus Luteus are Gram-positive parasitic spherical bacteriums which normally grows in grapelike bunchs. This species is normally found in milk and dairy merchandises every bit good as on dust atoms. Bacillus Cereus are a spore organizing type of bacteriums. They are Gram-positive and contain rods. Due to the fact that this bacterium is known to last cookery, it is a common cause of nutrient toxic condition and diarrhoea. Seratia Marscens a normally anaerobiotic b acteriums which contains Gram-negative rods. This bacterium feeds on disintegrating works and carnal stuff. S. marscens are found in H2O, dirt, milk, nutrients, and certain insects. In malice of the fact that bacteriums are harmful to the organic structure, certain steps can be taken in order to suppress their growing and reproduction. The most common signifier of bacteriums contending medical specialties are antibiotics. Antibiotics carry out the action which their Grecian beginning suggests: anti significance against, and bios intending life. In the early parts of the twentieth century, a German chemist, Paul Ehrlich began experimentation utilizing organic compounds to battle harmful beings without doing harm to the host. The consequences of his experimentation began the survey and usage of antibiotics to contend bacteriums. Antibiotics are classified in assorted ways. They can be arranged harmonizing to the specific action it has on the cell. For illustration, certain antibiotics attack the cell wall, others concentrate on the cell membrane, but most obstruct protein synthesis. Another signifier of indexing antibiotics is by their existent chemical construction. Practically all antibiotics trade with the obstructor of synthesis of the cell wall, proteins, or nucleic acids. Some bactericides interfere with the courier RNA, accordingly blending up the bacterial familial codification. Penicillins act by suppressing the formation of a cell wall. This antibiotic works most efficaciously against Gram-positive streptococcus, staphylococcus ( e.g. Micrococcus Luteus ) every bit good as certain Gram-negative bacteriums. Penicillin is normally prescribed to handle poxs, gonorrhoea, meningitis, and splenic fever. Tetracycline inhibits protein synthesis in infective being. This antibiotic is obtained from the civil ization of Streptomyces. Streptomycin an antibiotic agent which is obtained from Streptomyces griseus. This antibiotic Acts of the Apostless by restricting normal protein synthesis. Streptomycin is effectual against E. Coli, Gram-negative B, every bit good as many coccus. Neomycin an antibiotic derived from a strain of Streptomyces fradiae. Neomycin efficaciously destroys a broad scope of bacteriums. Kanamycin an antibiotic substance derived from Streptomyces kanamycetius. Its antibacterial action is really similar to that of fradicin. Kanamycin works against many aerophilic Gram-positive and Gram-negative bacteriums, particularly E. coli. Protracted usage may ensue in auditory every bit good as other amendss. Erythromycin is an antibiotic produced by a strain of Streptomyces erythreaus. This antibiotic plants by suppressing protein synthesis but non nucleic synthesis. Erythromycin has repressive effects on Gram-negative coccus every bit good as some Gram-positive bacteriums. Chlora mphenicol is a clinically utile antibiotic in battling serious infections caused by certain bacteriums in topographic point of potentially risky agencies of work outing the job. In lab trials, it has been shown that this medical specialty stopped bacterial reproduction in a broad scope of both Gram-positive and Gram-negative bacteriums. The suppression of cell reproduction caused by Chloramphenicol takes topographic point through intervention with protein synthesis. An experiment was conducted in order to find which antibiotics are most effectual in suppressing bacterial growing. First, the different bacteriums were placed on agar inside petri dishes. Then, antibiotic phonograph record were placed into the dishes. Each bacterium was exposed to every one of the antibiotics listed supra. The bacteriums used in the experiment were: Bacillus Cerus, Escerichia Coli, Seratia Marscens, and Micrococcus Luteus. After a 24 hr incubation period, the consequences were measured. In order to find which antibiotic had the most consequence their zones of suppression were recorded. The zone of suppression refers to the distance from the phonograph record to the outermost subdivision around the phonograph record where no bacterial growing was present. The consequences can be seen on the graph and informations chart. The followers is a table demoing the different zones of suppression of each antibiotic in the bacteria civilization: TetracyclineChloramphenicolKanamycinNeomycinPenicillinStreptomycinErythromycinB. Cerus5.5956.61713E. Coli74.25.54.5no effect4.6no personal effects. Marscensno effectno effect4.54no effect3no effectM. Luteus2322101123.511.519After analysis of the informations obtained it is obvious that each antibiotic had a distinguishable consequence on the growing of the different bacteriums. The consequences of this experiment are really of import, since they teach of how each bacterium reacts to different antibiotics. This is really valuable because it is the info rmation which assists doctors in ordering certain medicines to bring around diseases caused by bacteriums. Bibliography1 ) Encart Encyclopedia 1994, CD-ROM. 2 ) McGraw-Hill Encyclopedia of Science and Technology, 1992. 3 ) Physicians Desk Reference, 1996. 328

Monday, December 2, 2019

Lab Report Determination of Boiling Point Essay Example

Lab Report Determination of Boiling Point Paper The purpose of this experiment is to determine the boiling points of various organic compounds and to use these to identify unknowns. Equipment / Materials: hot plate closed end capillary tube hermetic liquid organic compounds 250 ml beaker small test tube Safety: Always wear safety glasses in the lab. Capillary tubes break very easily, handle them with caution. Be careful with the thermometer. Proceed re: Place a few millimeters of a known liquid organic compound in a small test tube. Place the capillary tube into the test tube with the closed end upward. Clamp the test tube to a ring stand, and immerse a thermometer in the test Fill a 250 ml beaker 3/4 full with water, and place on the hot plate. Carefully lower the test tube and thermometer combination into the beaker of water so hat the test tube is immersed half way in the water. Begin to heat the hot plate/water slowly. As the liquid approaches its boiling point, a few bubbles will be observed flowing out of the end of the capillary tube. When steady stream of bubbles are observed, turn off the hot plate and allow the contents of the test tube to cool. As the contents of the test tube cools, observe the capillary tube carefully. When the liquid begins to flow into the capillary tube, record the temperature of the liquid as its boiling point temperature. Obtain an unknown liquid, and repeat steps 1-6. We will write a custom essay sample on Lab Report Determination of Boiling Point specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Lab Report Determination of Boiling Point specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Lab Report Determination of Boiling Point specifically for you FOR ONLY $16.38 $13.9/page Hire Writer