Summary Essays (918 words) - Spaceflight, Science Fiction

Summary The book I chose to read this marking period was The Martian by Andy Weir. The book starts out with the entire Ares 3 space crew on the planet Mars, only six days into their mission. Soon to be hit with a massive dust storm with extremely high speed winds, much higher than their base is made to withstand they debate abandoning the mission. They end up deciding to do so, but the dust storm hits them before they can leave. The crew rushes to the ship, but Mark Watney is struck with a large piece of flying debris, and goes flying back, swallowed by the dust storm. The ship captain wants to go back for him, but the crew assumes he is dead and leaves the planet. Turns out he lived. Spaceman Mark Watney is now stranded on Mars all alone. Instead of giving up hope he continues on, thinks things out, and devises a plan. Their base, called the HAB is still intact, so Mark still has some supplies and even a large rover, but not nearly enough food or water to last forever. Marks sol ution to his food problem is filling his temporary home with space dirt, fertilizing it with his own waste, and growing potatoes. For water, he finds a way to extract water from rocket fuel, a very dangerous process which almost ends up blowing up the HAB, but Mark makes it work. Eventually, the folks back at NASA realize Mark is still alive when they see things on satellite images like the solar panels being cleared off daily(it's a very dusty planet), and things being moved around. Mark is able to set up a rudimentary way to communicate with NASA, and they then are able to instruct him on how to build something to get a better form of communication allowing Mark to send and receive messages to and from NASA. His former space crew, still on their way home from Mars is informed that Mark is still alive, and a plan is constructed to pick him up. The crew slingshots around earth using its gravitational pull, and heads back to Mars. When they get there Mark has to use a smaller pod spa ceship to get out of the atmosphere of Mars, and get as close the the crew as possible. Mark ends up just short of where he needs to be, and almost ends up watching his evacuation opportunity pass by. Instead, he punctures the hands of his spacesuit and is able to fly to his crew member Iron-man style and is pulled in to the ship. He becomes a hero back on earth Childhood of Mark Watney As a kid I never wanted to do anything but learn. I excelled in school, and my elementary teachers always wanted me to skip a grade but I didn't so that I could stay with my friends. Even back then though, when education was not a priority of mine at all I still wanted to be an astronaut, ever since I learned that Earth isn't the only planet. I never really thought it would happen though, and I definitely didn't think it would turn out the way it did. Getting stuck on Mars for two years completely alone was not part of the plan. Although I never really thought my dreams would materialize, I always dreamed of being a part of a human exploration to Mars. People always talked about going to Mars back then, but it never happened. Infact, after the Apollo missions human space exploration seemed to have stopped. This all seemed to change overnight. I was in 7th grade when it happened, I was sitting down watching the news after school one day. A news report came on about the discovery of microbial life on mars by a rover. Three days later NASA was granted the funding by Congress for the Mars mission. Although as a child I had no clue that I would end up being a part of the mission, the discovery is what sealed the deal for becoming an astronaut. After that I took school very seriously. I reached the potential that the teachers knew I had. Eventually my

Health Research Methodology Essay Example

Health Research Methodology Essay Example Health Research Methodology Paper Health Research Methodology Paper Research is a scientific process of inquisition and analysis which seeks to contribute or challenge present knowledge. Contributing or challenging existing knowledge is initiated by presenting a question that needs to be answered or a problem that needs to be solved. Through research, individuals are able to understand how objects in the universe act or perform, formulate concepts or theories that are acceptable and discernible to the majority, explain events and phenomena, and such. (Fraenkel Wallen, 2006) Research requires the acquisition of existing and relevant data or information for analysis and observation. Through this, the researcher is able to conduct testing and experimentation and relate the results to previous knowledge in order to come up with a new concept, contribute to an existing concept, or prove the reliability of an existing concept. Research may be classified as basic or pure research or applied research. The objective of basic or pure research is not in line with a specific field. Basic or pure research is conducted in order to simply add information to accumulated existing knowledge. Applied research, on the other hand, is conducted in order to deal with a particular problem or interest. Applied research results in the conclusion of a solution or a remedy that shall be applied to a particular instance or scenario. (Neuman, 2006) Research Paradigms Paradigms that structure research include the inductive paradigm and the deductive paradigm, qualitative research and quantitative research, or a mixed paradigm which necessitates the use of two or more individual paradigms. In social research, there are other research paradigms identified such as the conflict paradigm, feminism, Darwinism, positivism, structural functionalism, symbolic interactionism, etc. (Babbie, 2001) Perhaps, research paradigms are particular for each field, owing to the differences in nature and requirements. To tackle general paradigms that govern research, the inductive, deductive, qualitative, and quantitative paradigms of research shall be described. The inductive paradigm begins with specific principles or ideas to general principles or ideas, while the deductive paradigm follows the opposite movement. (Cresswell, 1994) The quantitative method follows the deductive paradigm and relies on statistics or data, and from it formulates interpretations, in order to formulate a generalization or a conclusion. On the other hand, generalizations or conclusions from qualitative data rely on a set of knowledge, principles, theories, etc. and follows the inductive paradigm. (Neuman, 2006) Paradigms provide a structure or a context on which research is to be patterned. It propels the research process because it has the ability to direct and guide researchers for them to realize their identified goals and objectives. Therefore, an effective research study necessitates the researcher’s familiarity of these paradigms and how they should be applied to the research process. Problem definition A first step in conducting a research is by defining the problem that will be answered by the research. Problem definition answers the questions of what the research is all about and why the research is being conducted. The problem is a question that needs to be answered itself. However, it also seeks to answer other relevant questions such that will guide the research process. These questions will answer the causes and effects of the problem, the magnitude and kind of information needed to obtain in order to answer the question or solve the problem, the resources needed for the research, the goal or objective of the research, the expected results or outcome of the research, etc. Problem definition involves the presentation of a given scenario or situation, phenomenon, or any other information that provides a background of what the problem is all about. The problem definition also identifies how the researcher will go about the research process, identifying the paradigm that needs to be implemented, the tools and resources that should be employed, and the research expectations. Defining a problem also bears in mind some aspects that need to be addressed in the process including the researcher’s interest or curiosity regarding the issue, the degree or enormity of the problem (usually, the problem needs to be specified from a general point of view, but sill maintaining its substance worthy of the research process), etc. (Kuman, 2005) Literature Review The Literature Review is an analytical or judicious evaluation of materials or resources that are related to the theme of the research. Moreover, the literature review serves as a compilation of all types of publications that discusses a topic relative to the research subject. The information disclosed in the literature review sets the position of the research topic, determining the concepts that supports or challenges the focus of the research study. The literature review also provides a framework that illustrates the course of the research subject through time, including additional information contributed, and changes in trends and approaches, etc. A literature review should be composed of how the problem was identified or unraveled in its particular setting, the actual narration or representation of gathered materials or resources, the assessment of the gather materials and resources, and the elucidation of related literature to the context of the research subject. (Macauley, 2001) Other requirements in presenting an outstanding literature review is to argue different points of view from varied materials and resources in order to determine a common ground and the differences that make each material or source valuable to the research process. The ability of the researcher to identify flaws within each material or resource also guides him toward a particular research approach. (University of Melbourne, 2007) Designing a Research Proposal Designing a research proposal follows a long process of planning and evaluation. The research proposal contains an overview of the entire research process that aims to present the purpose and significance of a particular research subject. The proposal provides factual and significant reasons that explain why the research should be conducted in terms of the objectives that it is trying to accomplish and the scale of knowledge that it will contribute to existing facts or data. Another purpose of the research proposal is to project in depth knowledge and expertise regarding the subject of the research, making clear the objective of the research process will be acknowledged and realized. The accuracy and flaws of the research process will also be identified in the research proposal. The good points of the research will be kept in check and the flaws of the process (for instance, inappropriate methodology or lacking background information) will also be identified to allow for immediate alterations. A research proposal includes the following: the title of the research study (clear and specific), information about the researchers, background information regarding the research problem, the goals and objectives of the research study, the processes or methodology that will be employed in the research process (including techniques or approaches, measurement tools, the variables for the study, the materials or resources that will be utilized during the research process, and the expected outcome or direction of the research study after the research process. Qualitative Research Method The qualitative method in research is usually used in the social sciences, in specific topics that deals with the explanation of human behavior, way of life, social interaction, etc. based on assumptions, observations, narrative data, and other means. It does not however rely on numerical statistics or date to come up with a generalization or a conclusion. The qualitative method as a research is investigative and probing in nature, subjective to personal but rational interpretations or assessments by the research, based on established concepts, theories, or laws, and information obtained from related materials or resources. Another feature of the qualitative method when applied to research is its propensity to extract conclusions from a natural unaffected situation or state of mind, based on the points of view of the researcher. The qualitative research method employs a unique set of tools or instruments to go about conducting the research such as ethnographical observation (observing a particular group with common traits and backgrounds), case study approach (assessment of a constrained case or an occurrence), phenomenological approach (exerting effort to understand and explain a particular phenomena). Biographical approach (obtaining knowledge about an individual), fishbowl observation (an individual or a group of people are observed under a particular setting in a given period of time), historiographical approach (drawing conclusions and generalizations from historical facts and data), etc. (Strauss Corbin, 1990) Quantitative Research If qualitative data deals with exploration and discovery of particular situations or phenomena as a subject of research and conclusion, quantitative research deals with numerical or statistical data in order to reach a valid generalization. It is objective, concentrating on the measured and valid interpretations of obtained data from the methodology and the results of the research process. Quantitative research is experimental and aims to prove or disprove theories through conventional and determined processes. Quantitative research is mostly used in a various fields of science, as opposed to qualitative research which is usually employed in social sciences and other fields similar to the structure of social science. Quantitative research is utilized in pure sciences such as chemistry, physics, algebra, biology, and social science as well, etc. Quantitative research usually makes use of a controlled setting, with the use of variables in order to arrive at a conclusion. (Cresswell, 2003) It also follows a systematic process that adapts the deductive paradigm, that which aims to formulate a concept, theory, or law. Moreover, this type of research is leaning towards the formulation of paradigms and theoretical frameworks illustrated in statistical or numerical fashion. The most common methods or techniques to carry out quantitative research are through the use of questionnaires, observation of controlled settings, etc. Interview and Questionnaire Design The interview and questionnaire design is a method employed in research in order to gather or obtain related data significant to the goals and objectives of the research study. Interview is a research technique that requires a dialogue or a consultation with a resource person in order to gather first hand information about the subject of the research. A questionnaire may be used in order to guide the interview process. However, the usual purpose of the questionnaire is to gather information from a specific or focus group for measurement and interpretation. The interview and questionnaire as methods of research may be used in both qualitative and quantitative research. However, it is important to keep in mind that before deciding to use specific research techniques, the goals and objectives of the research study must be identified in order to determine whether these techniques would be efficient to realize the goals and objectives of the research study. After determining the goals and objectives of the research study and the usefulness of interview and questionnaire has been identified, the researcher has to come up with steps in order to carry out these techniques. An interview requires approval from a resource person, and a scheduling available time and day both for the researcher and the interviewee to conduct the dialogue. The researcher should keep in mind that the questions should meet the requirements of the research, with clear and definite questions. Questioning should not be time-consuming. In designing a questionnaire, the following attributes should be kept in mind. A questionnaire should be short and extensive. The questions should be understandable and should not take a lot of time for the respondents to answer. It should also include a short introduction that presents the research study, the researchers, and the goals and objectives of the study. (Creative Research Systems, 2008) Sampling Strategies Sampling strategies are techniques utilized in sampling or selecting a section from a population to focus the study on. They are also implemented in order to ensure that the sample population that will be taken and studied from the total population will meet the desired results and generalizations of the research study. There are several sampling strategies utilized in research. Probability sampling can be categorized into four kinds, the simple random, stratified random, the cluster, and the systematic sampling. Simple random sampling selects arbitrarily from the population. The stratified random sampling categorizes the population into subgroups or divisions and samples will be drawn from each subgroup or division. Cluster sampling is grouping the population into clusters according to similarities, and samples will be drawn from each cluster. Systematic sampling follows a pattern of selecting a sample that will be observed. Non-probability sampling is categorizes under three techniques of sampling such as convenience sampling, quota sampling, and purposive sampling. Convenience sampling is selecting a sample population based on availability or accessibility. Quota sampling is dependent on the opportunity to obtain a sample and setting a quota for variables such as quotas for female or male samples, etc. Purposive sampling is designed to meet a particular goal or objective. Samples are not derived randomly but are selected according to the sample’s ability to answer the purpose of the research. (Landrenaeu, 2007) Quality of Data Reliability and Validity The reliability and validity of data determines the significance and authority of a research study. Research studies will be welcomed as a reliable contribution to existing knowledge if it is consistent and dependable. The reliability of data as revealed in a research study may be tested from conducting another research or experiment. If a research study is reliable, other research studies would yield the same results or conclusions. A research study will become commendable, worthy of attention and scrutiny if it reliable. However, a research study cannot stand in itself just by being reliable because reliability in itself does not make up a good research study. The research study should also be valid. Validity requires that a research study is precise or truthful. Upon testing or evaluation of the research study, its results or conclusions should have answered the goals and objectives of the research. A research study will not be valid if its results or conclusions tackle a different concept, theory or law. To fully identify whether a particular research study is valid, three validity contents should be determined, including the content, the concurrent and predictive, and the construct validity aspects of the research study. A research study proven to be reliable and valid becomes a valuable part of knowledge and science. (Golafshani, 2003) Data Management and Data Analysis Data management involves organizing data collected throughout the duration of the research process. Researchers should be able to accumulate in an organized and systematic fashion for easy retrieval and access. Moreover, large amounts of data should be clustered according to their content and purpose in order to lessen ambiguity and overkill when it comes to digesting the content of the research study. Primarily, the purpose of data management is to gather data in such a way that they the content of data is in line with the purpose of the research study. Data management is also used to accumulate data used in the research for the benefit of other researchers. (Miles Huberman, 2004) Data analysis requires synthesizing gathered data for the purpose of identifying similar and complementary content, determining useful or significant data to meet the goals and objectives of the research study, accumulating all necessary data, digesting the content of the data, interpreting the content of the data, describing its role in the research process, etc. Data analysis concentrates on the validity of the content of data. The process of analyzing data involves breaking down the content of the data and synthesizing them to make a connection or a pattern that will be used to arrive at a result or conclusion. Data analysis is done through numerical processes. Research Ethics The research process and all its aspects should follow certain ethical issues and concerns. Research ethics was designed to project the field of research in a reliable, dependable, trustworthy, and respectable fashion. It aims to look after the rights of all stakeholders, from the researcher, scientists, participants involved in the research process, the government, the community, etc. Primarily, research ethics is employed to provide guidelines and limits to researchers in conducting the research study. It is most applicable when the research study requires the involvement of other people intended to be utilized for testing or experimentation. The simplest example of ethics in research is the obtainment of private information during the interview or answering of questionnaire. If the interviewee or respondent refuses to answer a particular question due to a valid personal reason, then the researcher should respect the decision. (Resnik, 2008) Other ethical concerns that researchers should follow are the following. Target participants in the research study should not be forced to join the research study. The researcher should also follow ethical rules about privacy and confidentiality of information. Researchers should not trick target participants into participating in the research study, including revealing false information or concealing other information regarding the research. In general, researchers should uphold ethical standards in research in order to keep the dignity and the consistency of the field of research. Research should not be used to injure stakeholders or damage the environment. Rather it should be utilized to contribute to existing knowledge and the betterment of everyday life. References Babbie, E. (2001). â€Å"The Practice of Social Research, 9th Ed. Belmont: Wadsworth/Thomson Learning. Creative Research Systems. (2008). â€Å"Survey Design.† Retrieved August 27, 2008, from Creative Research Systems, Inc. Website: surveysystem.com/sdesign.htm Cresswell, J. W. (1994). â€Å"Research Design: Qualitative Quantitative Approaches. Thousand Oaks, Ca: Sage Publications Inc. Cresswell, J. W. (2003). â€Å"Research Design: Qualitative, Quantitative, and Mixed Methods and Approaches. California: Sage Publications Inc. Fraenkel, J. R. Wallen, N. E. (2006). â€Å"How to Design and Evaluate Research in Education.† NY: McGraw Hill Companies, Inc.

Whats the Difference Weighted vs Unweighted GPA

What's the Difference Weighted vs Unweighted GPA SAT / ACT Prep Online Guides and Tips Most students think a lot about their GPA in high school. There’s no doubt that GPA is one of the most important pieces of information colleges will consider in your application. However, GPA can vary drastically in the way it’s calculated at different schools. Some high schools use unweighted GPAs and some use weighted GPAs. I’ll give you an overview of the differences between the two and what each type of GPA might mean in the context of your personal experiences. Basic Differences Between Weighted and Unweighted GPAs So what are weighted and unweighted GPAs? Here are the main differences between the two. Unweighted GPA Traditionally, GPA is calculated on an unweighted scale.Unweighted GPA is measured on a scale of 0 to 4.0. It doesn’t take the difficulty of a student’s coursework into account.An unweighted GPA represents an A as a 4.0 whether it was earned in an honors class, AP class, or lower-level class. Weighted GPA Weighted GPA is often used by high schools to better represent students’ academic accomplishments.Weighted GPA takes into account course difficulty rather than providing the same letter grade to GPA conversion for every student.Usually, weighted GPA is measured on a scale of 0 to 5.0, although some scales go higher.An A in an AP class may translate into a 5.0 weighted GPA, while an A in a regular-level class will give you a 4.0 weighted GPA. Many schools also have mid-level classes (such as honors classes) where the highest weighted GPA you can earn is a 4.5. Differences in Calculation As you might expect, unweighted and weighted GPAs are calculated differently. In this section we give an in-depth explanation of how to calculate both GPA types. Unweighted GPA Unweighted GPA is much simpler to calculate than weighted GPA.This is because you don’t have to consider the levels of your classes in the calculations. Let’s say you’re taking five classes, and you have As in two of them and Bs in three of them.The two As will each translate to 4.0s, and the three Bs will each translate to 3.0s.If you add 4.0 + 4.0 + 3.0 + 3.0 + 3.0 and then divide by five, you’ll get an unweighted GPA of 3.4. If your grades aren’t quite as simple as that, here’s a quick letter grade and percentile to GPA conversion chart to make things easier. Letter Grade Percentile GPA A+ 97-100 4.0 A 93-96 4.0 A- 90-92 3.7 B+ 87-89 3.3 B 83-86 3.0 B- 80-82 2.7 C+ 77-79 2.3 C 73-76 2.0 C- 70-72 1.7 D+ 67-69 1.3 D 65-66 1.0 F Below 65 0.0 Most schools more or less follow this scale for unweighted GPAs. Yours may be slightly different, but it shouldn’t vary too much. Weighted GPA The calculations for weighted GPA can get a little more tricky because you may be taking a variety of courses at different academic levels. Going withthe example that we used for unweighted GPA, let’s say once again that you’re taking five classes and getting As in two of them and Bs in three of them.But this time let’s also say that one A is in a regular-level class, one A is in an honors class, two Bs are in AP classes, and one B is in an honors class. How is your weighted GPA calculated?Well, each grade has to be considered in conjunction with class level.This means using the unweighted GPA conversion scale for grades in regular-level classes, adding 0.5 to the scale for mid-level/honors classes, and adding 1.0 for high level/AP classes. This means: The A in a regular-level class would still be a 4.0 The A in an honors class would be a 4.5 The two Bs in AP classes would each be 4.0s The B in the honors class would be a 3.5 If you add 4.0 + 4.5 + 4.0 + 4.0 + 3.5 and divide by 5, you get a 4.0 weighted GPA. Remember, not all schools will use this exact weighted GPA scale, but as you can see, there can be a big difference between the numbers you get for unweighted GPA and weighted GPA based on the types of classes you’re taking. Even if two students have identical grades, one might have a weighted GPA that’s a full point higher than the other. Let's say you have a 3.2 unweighted GPA and are taking five classes. If even two out of the five classes are honors or AP and the rest are regular-level, your GPA would get bumped up to a 3.6 on a weighted scale. A slight difference in the levels of your classes can make a big difference in your weighted GPA. Go for it! All you have to do is believe! (and study more, but mostly believe!) What Does All of This Mean for You? Whether your school uses weighted or unweighted GPA can impact your class rank and experiences in the college admissions process. If Your School Uses Unweighted GPAs†¦ Admissions committees look at your coursework in conjunction with your GPA to reach conclusions about your academic potential.They understand that some schools do not take the difficulty of students’ classes into consideration when calculating GPA.If you challenge yourself in your classes but don’t have a perfect GPA, you will look better in the college admissions process than someone in regular-level classes who has a 4.0. It may be harder to stand out from your classmates with your GPA because more students will have GPAs that are at the same level when class difficulty is not a factor in the calculation.If class rank is based purely on unweighted GPA, your class rank may not reflect the effort you expended.Students with a lot of AP classes can have lower unweighted GPAs than students who took less difficult classes despite being more academically driven. Don’t worry too much though. College admissions officers are aware of the limits of the unweighted system, and they will look closely at your course record to determine whether your GPA is an accurate reflection of your academic potential. If Your School Uses Weighted GPAs†¦ First off, you should know that having a 4.0 weighted GPA doesn’t mean you can get into any college.A 4.0 may be the commonly accepted gold standard, but with weighted GPAs everything shifts upward.A truly elite GPA under the weighted system will actually be close to a 5.0, so you will need to make sure you adapt your concept of what constitutes a high GPA to fit this model. With a weighted GPA, your class rank is more likely to reflect your academic drive and ability because your GPA is a reflection of both your grades and the levels of the classes in which you earned them.You’ll have a higher rank than someone who earns the same grades as you in lower level classes. Weighted GPAs mean that you need to be careful because they can be deceptive. A lot of the advice that's out there is targeted towards unweighted GPAs, so you'll need to adjust your thinking to account for the size of the GPA scale at your school. The bottom line is that colleges will look deeper than the raw numbers when evaluating your high school academic record regardless of whether your GPA is weighted or unweighted. Admissions officers willbe able to tell which classes you took and how much you pushed yourself, so your GPA by itself becomes only one part of a much larger picture. You will also be required to lift the weight of your GPA times 40 in order to walk at graduation, so start training. Why do you think valedictorians are always so ripped? Do Colleges Look at Weighted or Unweighted GPAs? So, which do colleges care more about then, your weighted or unweighted GPA? The short answer is that most colleges care somewhat more about weighted GPAs because they do a better job showing the difficulty of the classes you took. However, colleges care more about your entire record of coursework than just your GPA out of context. They'll look to see which classes you took, how difficult those classes typically are, and what your class rank is. All of these factors are going to give them a better understanding of your GPA. So, when you're wondering which GPA is more important, the real answer is that colleges will look at all the information they're given to get the best idea of your academic skills. They won't just glance at your GPA and decide whether it's a good number or not without looking at other factors. If your transcript shows increasing difficulty in your coursework, this will look impressive to colleges, even if your GPA isn’t perfect.If you have a 4.0 GPA but took all the least challenging classes in high school, colleges will be less impressed since you didn’t push yourself academically.This means you should continue working on taking difficult classes and getting high grades in them in order to be as impressive as possible. Summary Your high school GPA may be measured on either an unweighted or weighted scale.The main difference between the two is that weighted GPAs take into account the difficulty of your coursework and unweighted GPAs don’t.Most unweighted GPAs are recorded on a scale of 0 to 4.0, and most weighted GPAs are recorded on a scale of 0 to 5.0. For the most part, whether your high school uses unweighted or weighted GPA shouldn’t affect you in the college application process.Colleges will look at your GPA, but they will also consider the bigger picture. Their greatest concern is that you’ve managed to challenge yourself intellectually with your coursework. GPA is important, but proof of your determination and perseverance in the face of academic struggles is often more impressive than a 4.0. What's Next? Want more information about how to interpret your GPA in the college search process? Find out what it means to have a good or bad GPA for college. Is your GPA above average? Do you need to work on bringing it up? Learn more about the average high school GPA. Your college GPA may end up being very different from your high school GPA. Read this article about average GPAs in college to see what might be in store.

Factors and criteria that determine which brand of mobile phones will Essay

Factors and criteria that determine which brand of mobile phones will top today and which brand will peak after that - Essay Example Consequently data is sent to a single multicast address which can then be received by any IP device2. Protocol Independent Multicast (PIM) contains multicast routing protocols for IP networking. These are primarily responsible to carry many-to-many and one-to-many data distribution with the help of internet, WAN or LAN. PIM is based upon different routing protocols along with its topology3. For instance, it includes Routing Information Protocol, Intermediate System to Intermediate System, Open Shortest Path First and the Border Gateway Protocol. Following are the four important types of Protocol Independent Multicast: Multicast routers work on the basis of distribution trees which are responsible to direct the path for IP multicast traffic. It is built in the form of a network infrastructure which facilitates in the traffic delivery. The Distribution trees are built in two different types i.e. source trees and shared trees. These trees do not have any loops because the data transformation is only between the source and receiver without any disruption8. The  source distribution tree is also called the shortest-path tree. It is built using small straddling tree which is responsible to transmit data using the shortest path from source to the recipients. Each of the individual sources which are transmitting data to a particular group gives rise to another tree note. In significantly large IP Networks this leads to an extravagant quantity of trees in a single network. This incompetency is actually important for multicast distribution trees. Here, all the multicast groups are attached with a shared root irrespective of the main source. This shared root is commonly called as the rendezvous point (RP). The shared tree are also unidirectional i.e. the traffic is received at RP directly from the source. This received data is then transferred to the every single receiver but there are also certain exceptions where this rule does

Automotive Production Levels Research Paper Example | Topics and Well Written Essays - 1250 words

Automotive Production Levels - Research Paper Example The quantity demanded for Toyota’s automobiles depends firstly on the price, but also on the consumer preferences, prices of other automobiles’ manufacturers, and income (Gravelle & Rees, 2004). As it can be seen from the graph, where the relation between quantity demanded and price is represented, a higher price tends to reduce the quantity people demand, whereas a lower price tends to increase it. In what concerns the quantity produced, it is a function of the price, factors of production, e.g., capital, labor, technology, and number of competitors (Gravelle & Rees, 2004). As the graph presents, there is a direct relation between price and quantity produced so a higher price tends to increase the quantity produced, whereas a lower price tends to decrease it. The equilibrium price and quantity occurs when the quantity demanded and the quantity supplied are equal. On the graph, it is the point of intersection of Qd (quantity demanded) and Qs (quantity supplied). Solving the two equations for Qd and Qs we obtain the following equilibrium point: The equilibrium point is above the current production level and price charged by the company, which are Q= 2236162 units and P=2.43 million yen. Taking into consideration that the level of production has increased compared with the quarter of the previous year (as shown in Fig. 2), the management of Toyota should continue this trend of increasing the number of units produced in order to arrive at the equilibrium point. As it can be seen, this coefficient is higher than one so it can be said that demand for Toyota’s vehicles is elastic. Taking this into account, management of the company should analyze many factors before considering increasing the price of its products because the demand for the automobiles is very sensitive to price changes. Let us assume that the elasticity of demand calculated above

Scientific Advancements in Medical Technology

Scientific Advancements in Medical Technology Alice Wyatt Scientific advancements 3D printers are used for many things including medicine to guns and other illegal items. Scientists have created a new 3D printer inspired by terminator 2. This means that it will work 100 times faster than the normal 3D printer and can make items in minutes rather than hours. Many people are happy because technology is being advanced. â€Å"Freaking awesome tech. This will also allow shapes to be designed and built that are impossible with current methods.† Said by Funcrew on the guardian website. This shows that many of the public are having positive thoughts about the new technology that is being produce and how it is shaping the world and how we are using the technology in everyday life, it also shows how this new technology will allow us to do things we couldn’t before. 3D printing is used in many different ways and one is being a part of the dental industry and being used by dentists so that they can poke and prod and them and to show the patients what is going on in their own mouth and explain procedures that they may go through. Many people are not understanding why we need a more expensive models just to show patients procedures. â€Å"Do they need a new, presumably more expensive, model just for the purpose of explaining procedures to patients?† said by Pollik. This shows that although many people have positive thoughts the other half of the public have negative thoughts and don’t understand why the technology is being used and the technology we use now is just as good and is not as expensive as the new technology coming onto the market. These negative attitudes make people jump onto these attitudes and start to criticise the technology and result in the technology not getting brought, however the positive attitudes may make celebrities and other famous people to accept these technologies resulting in a lot of people wanting this new technology and making the sales go very high up. The debate about 3D printers at the moment in who actually buys these as if it is criminals who buys these to make guns and other illegal items, this could mean in the criminals running wild and being able to make many, many items in just a week, this could cause a lot of problems throughout the world. Whether as the 3D printers that are used for medical advancements or in certain business industries are useful and therefore there is no debate on using 3D printers in these terms, it is just when the 3D printers are not used for good things, this then results in the society not looking the new technology when it is being used for bad things. These issues that the public has about the 3D printers are not important enough to stop any development of the 3D printers. This is because the 3D printers are more or less being used for the health and wellbeing of the public in the NHS with medical issues and dentistry issues and also in the different industries of business, and are only ever rarely used by criminals for illegal ideas. 3D printers are used a lot to help people and explain to people things that they can’t see themselves. People’s perception of 3D printers can be improved by the government and businesses taking the 3D printers of the market to the public and just letting businesses or the NHS being able to buy these this would result in criminals not getting a hold of the 3D printers and the public can stop worrying about what they will do with them. People’s perception would also change about 3D printers if they cost a bit less to buy as they k now that the NHS and other businesses will be buying these things for experiments and the public know that buying expensive equipment in the NHS means that they won’t have money to do other things as they don’t have money as it is. Bibliography: What are the pros and cons of MRI scans?  M Billingsley – 15th March 2012  http://doc2doc.bmj.com/forums/open-clinical_radiology_pros-cons-of-mri-scans  [Accessed on: 13/03/15] What is a Heart MRI?  Brain Krans – 26th June 2012  http://www.healthline.com/health/heart-mri#Overview1  [Accessed on: 13/03/15] Medical Applications for 3D printing: Current and projected uses, C Lee Ventola – October 2014  http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4189697/  [Accessed on: 18/03/15] Gartner says uses of 3D printing will ignite major debate on ethics and regulation, Conn Stamford – 29th January 2014  http://www.gartner.com/newsroom/id/2658315  [Accessed on: 19/03/15] What are the ethical issues surrounding gene therapy?  March 16th 2015  http://ghr.nlm.nih.gov/handbook/therapy/ethics  [Accessed on: 19/03/15] Scientists create Terminator 2-inspired 3D printer, Hannah Devlin – Thursday 19th March 2015 – 18:45  http://www.theguardian.com/science/2015/mar/19/scientists-create-terminator-2-inspired-3d-printer  [Accessed on: 19/03/15] Smile! Meet the 3D printer churning out teeth, nerves and gums for dentists, Stuart Dredge – Monday 16th March 2015,  http://www.theguardian.com/technology/2015/mar/16/3d-printer-teeth-nerves-gums-dentists  [Accessed on: 19/03/15]

Analysis of Meno’s Question to Socrates

In Plato’s dialogue, Meno, Socrates is asked a paradoxical question about what virtue is by Meno. â€Å"How will you enquire, Socrates, into that which you do not know? What will you put forth as the subject of enquiry? And if you find what you want, how will you ever know that this is the thing which you did not know? † Socrates retorts that if you already know what you are searching for, then you do not have to search.Alternatively, if you do not know what you are looking for, the search is indeed futile. However, Socrates attempts to explain to Meno why it is that he will be able to find what virtue is by introducing the idea that knowledge is inherent in the individual as it is passed along through the soul. When Meno demands proof of this concept, Socrates provides an example of a slave boy using â€Å"inherent knowledge† to calculate the length of a square needed to double it’s own area.This experiment shows Meno that virtue, along with other knowled ge, can indeed be discovered through the inherent knowledge in one’s soul, and only has to be â€Å"remembered† to become of use. When Meno proposes his argument to Socrates that a search for what you do not know is impossible, he is reasoning that if one does not know what it is they are trying to find, one will never know if they have found it. Meno seeks to understand how an individual can find new knowledge if they have no clue how to find it or how to comprehend the discovery of it.Socrates acknowledges Meno’s argument and states that â€Å"man cannot enquire either about that which he knows, or about that which he does not know; for if he knows, he has no need to enquire; and if not, he cannot; for he does not know the very subject about which he is to enquire† (Meno, Plato). Meno believes that this proves his own argument, but Socrates proposes an alternate way to attain knowledge. Socrates speaks of â€Å"priests and priestesses† who  "say that the soul of man is immortal† (Meno, Plato).Also, he says the soul has kept all the knowledge from previous â€Å"lives† that it has had, and therefore knowledge is obtained through recollection instead of learning. Socrates attempts to prove his theory by providing an example with one of Meno’s slaves. His experiment is simple. Socrates calls over a slave boy and asks him about squares. The boy knows has some knowledge of the properties of squares including the fact that they have four equal sides, they can be divided in half, and the area is equal to the side multiplied by the other side.However, when Socrates asks the boy to determine the length of a side necessary to double the area of a 2Ãâ€"2 foot square, the boy mistakenly says 4 feet (which would yield a square 4 times too large). The slave proposes a length of three feet, but is wrong again. Here Socrates makes a note of the â€Å"torpedo’s touch† (Meno, Plato) or â€Å"aporiaâ⠂¬  (Aporia, Burbules), which means that the boy knows that he does not know.Socrates states that this state of mind is better than believing false knowledge, because one will know that there is knowledge to seek. Socrates maintains that throughout the experiment he was never teaching the slave, but only asking of his opinions. Therefore, the knowledge that the slave called upon must have already been inherent if he had not learned it before (since slaves had little education the boy was the perfect example for Socrates to demonstrate this â€Å"inborn knowledge. ) Socrates makes his argument clear: if the slave had no knowledge of what is was he was searching for (the length of the side), and the information was not taught to the boy, then the information must have already been inherent in the boy’s soul. Here is Socrates’ argument in Premise/Conclusion form: P: Slave isn’t taught. P: Slave has no prior knowledge. P: Immortal soul contains knowledge. C: Knowl edge must come from one’s immortal soul. P: You do not know what you are trying to find. P: You are not taught what you are trying to find.P: Your soul contains inherent knowledge. C: You can find what you are searching for through recollection of the knowledge â€Å"stored† in your soul. Socrates’ proofs are meant to enforce his views that knowledge such as virtue must be searched for, â€Å"that a man should enquire about that which he does not know† (Meno, Plato). Citations: Burbules, Nicholas C. â€Å"Aporias, Webs, and Passages: Doubt as an Opportunity to Learn. † Curriculum Inquiry 30. 2 (2000): n. pag. Aporia. 2000. Web. 12 Sept. 2012. . Plato, and R. S. Bluck. Meno. Cambridge [Eng. : University, 1961. N. pag. Print.