Neurobiological And Biological Relationships Of Major...

Neurobiological and Biological Relationships to Major Depressive Disorder Biological and neurobiological studies have become more and more closely correlated with mental disorders throughout the past decade of scientific progress. This paper aims to expound models that have contributed to our developing understanding of the origins of Major depressive disorder (MDD) and treatment guidance, from both neurobiological and biological fields. It will also explore the implications, both positive and negative, for societal and personal integration of the knowledge that these advancements provide. Introduction MDD is defined distinctly from a general sadness, because of a number of qualitative and quantitative discrepancies (Kalia, 2005).†¦show more content†¦Of those mental illnesses, depression is of the three most common (along with anxiety and substance use disorder), with one in seven Australians (14 percent) experiencing it in their lifetime (Australian Bureau of Statistics, 2009). Emerging Research of MDD This paper will explore the various roles of neurobiological and biological research in regards to their etiologic explanations and treatment implications concerning MDD. Many fields are inter-related, therefore propagating the recovery or destabilizing of themselves and of each other synonymously. Etiology Neurotransmitter Systems. The study of monoamines in relation to MDD has been at the forefront for the majority of the time that the subject itself has been under research. With a particular focus on serotonin (but also norepinephrine and dopamine), these studies find that the rate of serotonin synthesis is often low in depressed patients (Rosa-Neto et al., 2004). Interpretation of serotonin levels may however become problematic, because it can be concluded that: depression may cause a low synthesis of serotonin; a low synthesis of serotonin may cause depression; or that another third process may cause both a low synthesis of serotonin and depression simultaneously. There is little doubt that a decrease in serotonin plays a key role in MDD but the notion of whether the neurotransmitter’s absence is a mechanism that is uniquely responsible, or merely a

Glossary of Cold War Terms

Every war has its own jargon and the Cold War, despite the fact that there was no open fighting, was no exception. The following is a list of terms used during the Cold War. The most worrisome term  is definitely the broken arrow. ABM Anti-ballistic missiles (ABMs) are designed to shoot down ballistic missiles (rockets carrying nuclear weapons) before they reach their targets. Arms race Massive military build-up, especially of nuclear weapons, by both the Soviet Union and the United States in an effort to gain military superiority. Brinkmanship Purposely escalating a dangerous situation to the limit ( brink), while giving the impression that you are willing to go to war, in the hope of pressuring your opponents to back down. Broken arrow A nuclear bomb that is either lost, stolen, or accidentally launched that causes a nuclear accident. Though broken arrows made great movie plots throughout the Cold War, the most serious real-life broken arrow occurred on January 17, 1966, when a U.S. B-52 crashed off the coast of Spain. Though all four of the nuclear bombs aboard the B-52 were eventually recovered, radioactive material contaminated large areas around the crash site. Checkpoint Charlie A crossing point between West Berlin and East Berlin when the Berlin Wall divided the city. Cold War The struggle for power between the Soviet Union and the United States that lasted from the end of World War II until the collapse of the Soviet Union. The war was considered cold because the aggression was ideological, economic, and diplomatic rather than a direct military conflict. Communism An economic theory in which collective ownership of property leads to a classless society. The form of government in the Soviet Union in which the state owned all means of production and was led by a centralized, authoritarian party. This was viewed as the antithesis of democracy in the United States. Containment Fundamental U.S. foreign policy during the Cold War in which the U.S. tried to contain Communism by preventing it from spreading to other countries. DEFCON An acronym for defense readiness condition. The term is followed by a number (one to five) which informs the U.S. military to the severity of the threat, with DEFCON 5 representing normal, peacetime readiness to DEFCON 1 warning the need for maximum force readiness, i.e. war. Detente The relaxing of tension between the superpowers. See details in  Successes and Failures of Dà ©tente in the Cold War. Deterrence theory A theory that proposed a massive build-up of military and weaponry in order to threaten a destructive counter-attack to any potential attack. The threat was intended to prevent, or deter, anyone from attacking. Fallout shelter Underground structures, stocked with food and other supplies, that were intended to keep people safe from radioactive fallout following a nuclear attack. First strike capability The ability of one country to launch a surprise, massive nuclear attack against another country. The goal of a first strike is to wipe out most, if not all, of the opposing countrys weapons and aircraft, leaving them unable to launch a counter-attack. Glasnost ​ A policy promoted during the latter half of the 1980s in the Soviet Union by Mikhail Gorbachev in which government secrecy (which had characterized the past several decades of Soviet policy) was discouraged and open discussion and distribution of information was encouraged. The term translates to openness in Russian. Hotline ​ A direct line of communication between the White House and the Kremlin  established in 1963. Often called the red telephone. ICBM ​ Intercontinental ballistic missiles were missiles that could carry nuclear bombs across thousands of miles. iron curtain ​ A term used by Winston Churchill  in a speech to describe the growing divide between western democracies and Soviet-influenced states. Limited Test Ban Treaty Signed August 5, 1963, this treaty is a worldwide agreement to prohibit nuclear weapons testing in the atmosphere, outer space, or underwater. Missile gap ​ The concern within the U.S. that the Soviet Union had greatly surpassed the U.S. in its stockpile of nuclear missiles. Mutually assured destruction ​ MAD was the guarantee that if one superpower launched a massive nuclear attack, the other would reciprocate by also launching a massive nuclear attack, and both countries would be destroyed. This ultimately became the prime deterrent against a nuclear war between the two superpowers. Perestroika ​ Introduced in June 1987 by Mikhail Gorbachev, an economic policy to decentralize the Soviet economy. The term translates to restructuring in Russian. SALT   Strategic Arms Limitation Talks (SALT) were negotiations between the Soviet Union and the United States to limit the number of newly created nuclear weapons. The first negotiations extended from 1969 to 1972 and resulted in SALT I (the first Strategic Arms Limitation Treaty) in which each side agreed to keep their strategic ballistic missile launchers at their current numbers and provided for the increase in submarine-launched ballistic missiles (SLBM) in proportion to the decrease in number of intercontinental ballistic missiles (ICBM). The second round of negotiations extended from 1972 to 1979 and resulted in SALT II (the second Strategic Arms Limitation Treaty) which provided a broad range of limitations on offensive nuclear weapons. Space race   A competition between the Soviet Union and the United States to prove their superiority in technology through increasingly impressive accomplishments in space. The race to space began in 1957 when the Soviet Union successfully launched the first satellite,  Sputnik. Star Wars   Nickname (based on the  Star Wars  movie trilogy) of U.S. President Ronald Reagans plan to research, develop, and build a space-based system that could destroy incoming nuclear missiles. Introduced March 23, 1983, and officially called the Strategic Defense Initiative (SDI). superpower   A country that dominates in political and military power. During the Cold War, there were two superpowers: the Soviet Union and the United States. U.S.S.R.   The Union of Soviet Socialist Republics (U.S.S.R.), also commonly called the Soviet Union, was a country that consisted of what is now Russia, Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan.

Overpopulation And Its Effects On Human Overpopulation

Population growth is another negative factor linked to the disruption of natural selection from medical advancements that causes problems both socially and environmentally. Overpopulation happens when there are too many people and not enough resources. The key to solving overpopulation is to find and retain the perfect size for the population before it is too late and all the natural resources are consumed or ruined. The world population is rapidly increasing†¦ â€Å"[w]ith over 7 billion people living on the planet today and estimates reaching between 8 and 11 billion by 2050 and up to 15 billion by 2100, the human population will continue to grow exponentially† (Causes of Human Overpopulation 1). The United States population is projected to increase by 44% from the years 2008 to 2050. Advancements in medicine cause overpopulation by causing mortality rates to go down and life expectancy to go up. Due to improvements in prenatal care, health care, and education, the chan ces of survival of mothers and their babies increases (Causes of Human Overpopulation 1). From the environmental aspect, overpopulation can lead to problems like drought, soil erosion, and pollution. Socially, a large growth in population can cause problems like overcrowding, high unemployment rates, inflation, overfull schools and hospitals, urban sprawl, and increases in traffic. (F.A.Q. | Negative Population Growth 1). It is important to care for valuable resources like freshwater because most of it isShow MoreRelatedThe Effects Of Human Overpopulation On The Environment1242 Words   |  5 PagesThe Effects of Human Overpopulation on the Environment â€Å"Can one apple slice feed the world?† If the world were an apple, farmland would only be one very thin slice. The growing population on this Earth has some serious questions that it needs to consider as a whole. How are we all going to eat with eight billion mouths to eat? Farmers have an interesting proposition, they need to feed a growing population with very little land. Overpopulation also has negative effects on the earth through pollutionRead MoreThe Effects Of Overpopulation On The Human Population1532 Words   |  7 Pages overcrowding has concerned many scientists, researchers, and the human populace as a whole. Overpopulation, the condition where an area holds more people than in which the area can properly function, is a serious issue which has many adverse effects on the well-being of a healthy human population. A growing seven billion people live on Earth and factors such as pollution, and human well being may all be affected by overpopulation, and continue d growth in population will cause an even greater impactRead MoreThe Effects Of Overpopulation On Human Population1073 Words   |  5 PagesPlanet We need a major reduction in human population, stat! Ok, maybe that’s not a viable solution, but it does beg the question; â€Å"How many people does it take to break the world?† Currently, there are a little over 7 billion people on the planet and there is already some cause for concern. Overpopulation, extreme weather, and a drought that’s causing a water shortage. Is the abundance of humans the cause or is it simply happening because it can? Overpopulation can cause many issues for the inhabitantsRead MoreHuman Overpopulation And Its Effects On Coral Reefs1540 Words   |  7 Pages bleaching is the by-product of corals getting too warm; when corals get too warm they expel the algae (zooxanthellae) living in their tissues, which causes them to turn completely white. Today, the remaining coral reefs are being stressed by the human inhabitants who exist upon the land masses from which these reefs neighbor; which, in turn, has caused these remaining reefs to approach extinction. Moreover, coral reefs are underwater barrier islands, and if they become extinct, Florida and any otherRead MoreCauses And Effects Of Overpopulation1073 Words   |  5 PagesWhat are the effects of overpopulation? Overpopulation is an undesirable condition where the number of existing people on earth exceeds the carrying capacity of the earth. However, overpopulation has not always been a problem. At the dawn of agriculture, 8000 B.C., the population was approximately 5 million. 8000 years later, 1 A.D., the number of people existing on earth was between 200-300 million. That’s a growth rate under 0,05% per year. A tremendous change occurred with the industrial revolutionRead MoreThe Environmental Impact of Overpopulation Essay862 Words   |  4 PagesThe human population has continued to grow through the decades. The increasingly large number of people that have become apart of the world population has become a major problem. The consequences of the world being over populated has numerous effects which include: Environmental effects, depletion of natural resources, effects on the economy, food and water instability, and mass species extinction. Without a solution to the rise in hu man population, by the year 2020, 8 billion people will liveRead MoreThe Problem Of Overpopulation And Overpopulation872 Words   |  4 PagesHuman overpopulation. Human population can be defined as the condition whereby, the total count of the human inhabiting a certain area exceeds the carrying capacity of the area Bongaarts, (2011). This brings out an issue of the carrying capacity of the region which alludes to the number of individuals who can inhabit a certain area for a given period. It may also be looked at as the situation whereby the available renewable resources in a certain area can satisfactorily support the current populationRead MoreOverpopulation : We Must Figure It Out For Save The World Essay1645 Words   |  7 Pages Overpopulation: We Must Figure It Out to Save the World It may not be something you think about often, but human population growth is a big issue in our world today and this problem needs to be solved in the future to save our planet. Overpopulation is a condition that will be in effect if the population exceeds the carrying capacity on Earth. The carrying capacity is the peak population that can sustain human life on Earth. It is uncertain what Earth’s carrying capacity is for the human raceRead MoreOverpopulation Is More Than Just A Crowded Planet1343 Words   |  6 PagesIndustrial Revolution, and an overall developing human race (Kinder). However, the current world population no longer signifies progression; it signifies regression. Today, the Earth’s human population is approaching overpopulation. Overpopulation is more than just a crowded planet. The definition of overpopulation is, â€Å"†¦too many people for the amount of food, materials, and space available†¦Ã¢â‚¬  (Cambridge Dictionaries). This means that overpopulation will impact crucial aspects of the planet and notRead MoreHuman Overpopulation1505 Words   |  7 PagesThe topic of overpopulation has different perspectives regarding whether or not it is happening as well as its apparent effects of both the environment and its inhabitants. The idea of human overpopulation being a problem most clearly begins around the time of Thomas Robert Malthus’ publishing of An Essay on the Principle of Population as It Affects the Future Improvement of Society, with Remarks on the Speculations of Mr. Godwin, M. Condorcet, and Other Writers. In his writing, Malthus describes

Essay on Literature Review Nurse Retention - 1377 Words

With the ongoing changes in the healthcare field, nursing workforce retention presents itself as one of the greatest challenges facing healthcare systems today. According to the American Nursing Association, nursing turnover is a multi-faceted issue which impacts the financial stability of the facility, the quality of patient care and has a direct affect on the other members of the nursing staff (ANA, 2014). The cost to replace a nurse in a healthcare facility ranges between $62,100 to $67,100 (ANA, 2014). The rising problem with nursing retention will intensify the nursing shortage, which has been projected to affect the entire nation, not just isolated areas of the country, gradually increasing in its scope from 2009 to 2030 (Rosseter,†¦show more content†¦The researchers surveyed 3186 nurses on staff at 56 hospitals; 52 academic hospitals and 4 non-academic hospitals. The researchers compared the results of the nurses’ surveys with information about the location of the hospital (rural or urban), the hospital environment (managerial support, good relationships among team members, the nurses’ involvement in decision-making), the nurses’ educational levels, and the staffing (nurse:patient ratio). The researchers also interviewed nurse managers and leaders to evaluate their input on nurse retention and nursing shortages in a qualitative portion of the study. In the article â€Å"Effective strategies for nurse retention in acute hospitals: A mixed method study†, the researchers state â€Å"the results show that nurse staffing and the quality of the nurse practice environment (i.e. managerial support of nursing care, good relations between doctors and nurses, nurse participation in decision-making and organizational priorities on quality of care) are signiï ¬ cantly associated with intention-to-leave the hospital† (Van den Heede et al., 2013, p. 192). This association is related with increase nurse satisfaction with environment and staffing is related to decreased intention to leave the hospital, or an inverse relationship. These researchers also shed light on the fact that Magnet hospitals have far better nurse retention and nurse satisfaction. Thus, focusing on and achieving a Magnet status can be an effectiveShow MoreRelatedTransformational Leadership1196 Words   |  5 Pagestheir strengths and skills and uses them (Roussel Swansburg, 2009). Literature Review Literature Review #1 A comprehensive literature review was conducted on transformational leadership styles. According to Thyer (2003), transformational leadership may help reduce the nursing shortage (Thyer, 2003). Nurses who are being managed under a transactional style do not want to stay in the profession according to Thyer (2003). Nurses want to be involved with the decision making on their units because thisRead MoreCritical Appraisal Of The Literature Essay1339 Words   |  6 PagesAppraisal of the Literature Search Methods The databases of EBSCOhost, Google Scholar, and Cumulative Index to Nursing and Allied Health Literature with full text were used to identify evidence-based research concerning the issue of nurse faculty shortage and strategies for dealing with the problem. Identifying keywords selected for the search were nurse faculty shortage, nurse faculty, nurse faculty shortage solutions, and global nurse faculty shortage. Published articles chosen for review fell betweenRead MoreResearch Critique, Part 1: Hospital Nurse Staffing and Patient Mortality, Nurse Burnout, and Job Dissatisfaction798 Words   |  4 PagesResearch Critique, Part 1: Hospital Nurse Staffing and Patient Mortality, Nurse Burnout, and Job Dissatisfaction Grand Canyon University: NRS-433V 06-04-2016 PROBLEM STATEMENT: The broad research problem leading to this study is the belief that nursing shortage in facilities leads to patient safety issues. The review of available literature on this topic shows strong evidence that lower nurse staffing levels in hospitals are associated with worse patient outcomes. Some of these outcomes includeRead MoreRecruitment And Retention Of Nurses1404 Words   |  6 PagesRecruitment and Retention in Nursing As the forthcoming nursing shortage threatens the United States, organizations must be knowledgeable in the recruitment and retention of nurses. The challenge facing health care organizations will be to retain sufficient numbers of nurses to provide safe, efficient, quality of care to patients. Also, organizations will look to recruit and attract quality nurses to fill vacancies left open by staff who left the profession due to burning out. Turnover in NursingRead MoreNursing and The Organizational Culture of Human Resource Management1495 Words   |  6 Pagesorganizations. Nurses play a pivotal role in the health care profession and make up the majority of healthcare workers in a hospital setting. However, there is a nursing shortage globally that is expected to increase as nurses from the baby boom era are set to retire. This is where human resource management and organizational culture come into play. There have been prior studies that have linked organizational culture to t he decrease in nurse turnover rate and the increase of nurse retention. It is importantRead MoreNursing Retention Through Residency Programs971 Words   |  4 PagesNursing Retention through Residency Programs: A Literature Review Shannon G. Stone, MSN, RN, CCRN, SCRN Texas Tech University Health Sciences Center School of Nursing In partial fulfillment of the requirements of NURS6330 Evidence Based Inquiry I Jeannette Crenshaw, DNP, RN, LCCE, FACCE, IBCLC, NEA-BC, FAAN September 27, 2015 Nursing Retention through Residency Programs: A Literature Review A great cause for concern in today’s healthcare system is the shortage of nurses. The shortageRead MoreThes Theory Of Structural Empowerment1699 Words   |  7 Pagesto retain nurses. One strategy for nurse retention is, encouraging nurses to get certified, according to research studies. The population affected by nurse certification is the nurse, the patient, and the organization. Organizations need to invest into getting nurses certified in their specialty area. Research proves that certified nurses’ self-perception is a sense of empowerment. The Iowa Model of Evidence-Based Practice will be utilized to guide the change to practice. A literature search wasRead MoreNurse-to-Patient Ratio1723 Words   |  7 PagesRUNNING HEAD: Nurse-to-Patient Ratios A Literature Review: Nurse-to-Patient Ratios and Their Relationships with Other Variables Since the times when Florence Nightingale took care of patients, there has been a question about what factors affect patient care. One of these factors, nurse-to-patient ratios, has gotten significant publicity over the last several years due to a change in legislation in California. This increase in publicity has sparked many researchers interest to further evaluateRead MoreThe Factors Affecting The Work Environment On Health Worker Shortages And Improving Access And Quality Of Health Services1347 Words   |  6 PagesLiterature Review In the recent years, there has been viable evidence that shows that other factors in the work environment may also be strong push factors for retention (Burns, Bradley and Weiner, 2012, pg.445). The factors that contribute to forcing workers to leave the public sector include: workload and staff shortages are contributing to burnout, high absenteeism, stress, depression, low morale, and de-motivation (Burns, Bradley and Weiner, 2012, pg.445). It is also shown that poor workingRead MoreThe Case Study by Bally and Nemeck907 Words   |  4 PagesThough Bally and Nemcek are both concerned about high attrition rates in registered nurses and seek ways to increase retention rates and decrease the rate of turnovers, the factors which they consider critical in addressing the shortage of nurses by increasing rates of retention are vastly different. Nemcek is concerned with the internal emotional states and experiences of registered nurses and the impact that has on the nurses experiences wit h respect to job satisfaction and life satisfaction-two

What is DNA Free Essays

Alright, let me help you start off with the facts, DNA stands for Deoxyribonucleic Acid. Sound like a mouthful? Don’t worry you’ll get used to it. Anyway, from reading the title you can suggest that DNA is pretty important, it’s what everything living on the planet is made out of, from a tiny piece of bacteria, to the tallest tree in the world. We will write a custom essay sample on What is DNA? or any similar topic only for you Order Now Cells are a little bit bigger, but not that much bigger, they’re still invisible to the naked eye. Alright, that’s enough introduction for now, let’s get into some Deoxyribonucleic Acid! DNA is really important, from back in the billions of years ago without much life when the most lively thing on earth were bacteria, they were made out of DNA. Those bacteria were just Prokaryotic cells, but we’ll get into that later. You can think of DNA like some code on a computer program, it’s what makes it, without it, you’ve got nothing. It makes up the organism, tells it how to make more of itself, and displays what it can and cannot do. DNA is made out of a sneeze called ATCG which stands for Adenine, Thymine, Cytosine, and Guanine. ATCG in DNA are called nucleotides. Its structure is a double helix, it looks like a spiral staircase almost, or a spiral ladder. Adenine is connected through a bond made out of hydrogen atoms to Thymine, and only Thymine. The same goes for Cytosine and Guanine. These four substances can be arranged into almost anything, from a virus to the Chromosome of a Cell. DNA is you in a sense. It makes up everything you are, everything down to the smallest construct of you. Even down to the tiniest of red blood cells, there’s DNA there too. Fun fact, one of the only things able to reach down far enough to break those hydrogen bonds I talked about earlier is called RNA; Which is what we’re about to get down into right now! There are many types of RNA. Think of RNA like half of a DNA strand. Instead of DNA being Deoxyribonucleic Acid, RNA is just Ribonucleic Acid, no more of that Deoxy stuff, it sounds like a detergent. Anyway we’ll be going over just 3 types of RNA, mRNA, rRNA and tRNA. Just a quick fact before we get into RNA, RNA contains AUCG. RNA is Adenine, Uracil ,Cytosine, and Guanine, all the same holds true for the bonding. Cytosine still binds to Guanine and Guanine only, but Adenine only bonds to Uracil now! mRna is messenger RNA. No, not that messenger app on your phone, mRNA is what copies half of the DNA strand information and sends off the DNA sequence information down to the tRNA, which is the next step in this whole DNA reproduction! The tRNA is what transfers that information down to the next stage rRNA. rRNA is the ribosomal or receiver RNA. It receives the rRNA and just builds that other half of the DNA and just rinse and repeat after that. All of this is happening inside you right now constantly until you die. Alright! Let’s get into genes! Not those pants you’re wearing, we’re talking about genetic genes. And as such let’s talk about a person for a moment. His name was Gregor Mendel, He was born in 1822 and died in 1884. But let’s talk about what happened in between those points. Gregor mendel is referred to the father of genetics. A long time ago he had an experiment with pea plants. He took a pink pea plant, and a white pea plant, and cross breed them, meaning he took a seed from one and pollen from another and put them together. After all the seeds grew up, he got 100% pink pea plants and 0% white ones. â€Å"How could this be?† he thought. He performed the experiment again and he got 75% pink and 25% white ones. This is due to Dominant and Recessive Genes. A dominant gene, in this case was the pink leaf. The recessive gene was the white one. Let’s say the white petals were ww chromosomes and the pink ones were PP. Remember how I said DNA could display what is could or could not do? well the chromosomes are just that. Only ww could make up white, but PP and Pw could make up pink. Cross breeding would get you 16 different results. And to how reproduction works you only pass down one of those chromosomes. So all of them came out pink if you do the math, that’s the only possible combination being Pw. But cross breeding those two again gave him another 16 results, but this time, it wasn’t PP vs ww, it was Pw vs Pw. And as such, the results were 4 white and 12 pink, because you only have 1/4th chance of getting a ww. And the others were either Pw or PP. And that’s how recessive and dominant genes work. Now. Let’s talk about something called Cells, I know you’ve heard of them, reader. Cells are made up of a membrane bound nucleus, lots of ribosomes, mitochondria, the Golgi apparatus and the soft and hard endoplasmic reticulum and a little bit of cytoplasm for filling. Let’s start off with the center of a cell, the nucleus. The nucleus is the heart of the cell, however the nucleus is like a casing for the nucleolus, like the brain of the cell. The nucleolus is surrounded by chromosomes, which are in every cell, and those chromosomes look like a giant, but still tiny X. Farther out from the nucleus, we have the Endoplasmic reticulum (ER) right outside. The ER is useful in modifying and transporting proteins. Some of the time they stay put in the ER and sometimes they go out onto the Golgi apparatus! The Golgi apparatus is like the boxing part of the factory, it packages the proteins into lipids and vesicles. A lipid is what that makes up the cell membrane, like the outside shell. A vesicle is this bubble that actually leaves the cell and releases the proteins to other cells in the area. This is constantly happening inside your body as you are reading this. As you probably learned in biology some day that the mitochondria are the powerhouse of the cell. Something else that is really cool is that mitochondria have their own DNA that is specific to them, not shared throughout the cell. However mitochondrial DNA is highly susceptible to mutations because it does not have robust DNA. Inside the mitochondria is adenosine triphosphate or you can just call it ATP for short. ATP is energy for cells, it can transfer energy, and is sometimes referred to as the currency of the cells. Another thing they do is that they generate heat and help with signaling activities, and mediate cell growth and death. The number of mitochondria in the cell varies, like say in the liver, there are sometimes hundreds of mitochondria for energy to break down foods. Now, we are going to talk about Plant Cells. Actually, before we go and talk about Plant cells, let’s talk about the difference between them. Plant cells are very similar to Animal cells, but Plant cells have Cell Walls, and Chloroplasts. That’s pretty much it actually. Most of the rest is the same. You all know that plants perform photosynthesis, turning light energy into food, or ATP. But how do they do it? Well it starts was down in the cells with something called chloroplasts. This is something that animal cells do NOT have. Inside a chloroplast is many of these little green disks called thylakoids. These thylakoids contain chlorophyll, that’s where the magic happens. If you didn’t know, chlorophyll is green, and that is the major role in what makes most leaves and most plants green! That’s why Big trees have so many leaves. They need so much food, so they need a wide area to capture sunlight,. Alright, let’s get into some history. Plant and animal cells are called Eukaryotes and I’m about to talk about something much older. Prokaryotes are 2 billion years older than Eukaryotes. Fun fact: Eukaryotes came from Prokaryotes. Prokaryotes are very simple, they only have a singular but long strand of DNA that just floats inside the cell. Prokaryotes are just bacteria, that’s the domain they belong to. The story on how Prokaryotes become Eukaryotes is that one day a Prokaryote swallows another bacterium, and the relationship works nicely. That other bacterium is called mitochondria. so when the cell reproduced through binary fission it split half of the mitochondria, and then the cycle repeated and other things were engulfed and then evolution came and then suddenly you have a Eukaryote after 2 billion years. But now, let’s talk about our final category, Viruses. Everybody has heard of them and been infected by them, but what are they? s you may have guessed there are many different types of viruses. This is Called biological diversity. If there were only one virus in the world, we would become immune and the virus would die off without hosts. Viruses can only survive if they have host cells, and all viruses want to do is spread as far and wide as possible. How to cite What is DNA?, Papers

Accounting Information System Conversion Methods

Question: Describe about the Accounting Information System Conversion Methods? Answer: Introduction: When there is a work for organization which is small then in a month there are very few transactions happened which are basic invoices, deposits and withdrawals just for examplethe request like Excel of Microsoft will not be sufficient. Fact be told, Excel is hazardous as a tool of accounting, as there will be no built-in defend to remain us from removing the transaction or by accident duplicating the line in the report. Formerly weve determined we require a system of accounting, its time to evaluate the planned conversion arrangement choices. There will be couples of method to eliminate old system and execute system which is new without impacting present activities of financial. Few of them are listed below: 1. Execute the System which is New Parallel to Old Executing parallel knows that we maintain to use the system which is old whereas using the system which is new at same time. These permit to educate employees on system which is new and to secure any issues with program which is new. The major drawbacks to this method is that information can have to be come into into every system independently, particularly if it is essential to create alter to the arrangement of the databases, like switching from the account number of three-digit to the account number of four-digit. 2. Stage in System which is New We might choose to execute the adaptation in stages. Just for example, we might exchange the department of payable accounts to first. After which we will be pleased that system which is new is operational properly, we might then exchange inventory, receivable accounts and common ledger which will function regularly. The main disadvantages to staging in system which is new is the final translation which might take some more time, and we will probably require to execute the modules which are selected or locations which are parallel at that time. 3. Utilize One Site as the Pilot Site If we have additional one location, we might decide the site to proceed as the location which is pilot. Just for example, we location of pilot might require 3 decimal places in the module of accounting cost, but an additional location might require 5. 1 location might be capable to acquire by product classes which are 12, but an additional one might require at least 20. 4. Changeover which is Direct We might be capable enough to download the files from the system which is old straight to new in what is known as changeover which is direct. After evaluating files to ensure that they will relocate properly, we stop getting the system which is old and all the employees start getting the system which is new. This technique naturally works greatest if there is a change which is negligible, such the exchange to the programs that is almost indistinguishable but permit to acquire the numeral of a license which we require or that insert the module which is new, like the function of perpetual inventory. The Method: Run System which is New Parallel to Old This is an admired technique this is because it is comparatively at low risk. The thought is to execute the system which is old beside the system which is new for whilst. With this method, the outcomes or performance of every system can be evaluated to ensure that the system which is new is presenting as predictable. If the issue is serious isestablish, then the firm can just bear on using the system with the existing one unless the fix has put at place. Process The adoption process which is parallel cannot be representing lacking paying concentration to the steps previous to the definite exchange, specifically the building of the adaptation situation and the classification and testing of all the necessities. The actions are separated in 4 main stages: Describe strategy of execution, which contracts with the sort of execution of approach should be implemented. The Pre-implementation, which will be done with building the preparation of all features and necessities occupied in the execution. At this stage we will pursue on steps below: Describe strategy of execution Generate execution of master script Build planning of Time Describe requirements of Organizational Describe requirements of IT Organize organizationThe firm should be organized correctly as per the last stage. Conversioncontracts with the definite conversion procedure and will closing the adaptation procedure; happening with system which is new. Activity Explanation Create catch ups The edition process is occurrence, a amount of actions execute parallel. At this phase, catch ups are organism made which is using system which is old. Control the system The scheme is being prohibited all times by control system. Execute important system which is old The system which is old is important; dealing out the real data. Execute system which is new The system which is new is executing in parallel with system which is old and is intimately observed. Interpret catch ups in system which is new If criterions are met, catch ups are interpreted and move in system which is new and the adaptation procedure appears in next phase. Perform strategy of rollback / workaround If criterions are not met, the approach of workaround or approach of rollback is executed, depending on character of errors. Create catch ups Catch ups will be completed for security reasons, still when the system is new is important. Execute system which is old The system which is old executes as the backup, for security reasons Run leading new system The new system is leading and in full operation. Below are the benefits... If something will go wrong with system which is new, then system which is old will proceed as back-up. The outcomes from systems which are new and old can be evaluated to confirm if the system which is new is executing properly. Below are its some drawbacks... Entering information into 2 systems, and executing 2 systems jointly, takes lot of additional effort and time. Conclusion: With the equivalent changeover the form executes both systems which is either new and old in equivalent for the time. Once the firm is certain that system which is new is running correctly and the staff is prepared to start using it thus will create the result to entirely modify over. At the calm period, possibly at night or at weekend, the information is completely transferred from system which is old which is then shut down. References: Jeffrey Joyner, 2012, Accounting Information System Conversion Methods, https://smallbusiness.chron.com/accounting-information-system-conversion-methods-34569.html Rob Callahan, 2013, Two Disadvantages of Parallel Conversion, https://www.ehow.com/info_12014696_two-disadvantages-parallel-conversion.html Marshall, 2003, Accounting Information systems, 9th edition Corr S., 2014, Types of AIS Conversions Efrem, 2010, Information System Conversion, https://www.irma-international.org/viewtitle/38190/ James, 2012, Accounting Information system Gary ShellyThomas ChasmanHarry Rosenblatt, 2006, Systems Analysis and Design ACE project, 2010, Advantages of Parallel Systems