The Basics of an Experiment

Science is concerned with experiments and experimentation, but do you know what exactly an experiment is? Heres a look at what an experiment is... and isnt! Key Takeaways: Experiments An experiment is a procedure designed to test a hypothesis as part of the scientific method.The two key variables in any experiment are the independent and dependent variables. The independent variable is controlled or changed to test its effects on the dependent variable.Three key types of experiments are controlled experiments, field experiments, and natural experiments. What Is an Experiment?  The Short Answer In its simplest form, an experiment is simply the test of a hypothesis. Experiment Basics The experiment is the foundation of the scientific method, which is a systematic means of exploring the world around you. Although some experiments take place in laboratories, you could perform an experiment anywhere, at any time. Take a look at the steps of the scientific method: Make observations.Formulate a hypothesis.Design and conduct an experiment to test the hypothesis.Evaluate the results of the experiment.Accept or reject the hypothesis.If necessary, make and test a new hypothesis. Types of Experiments Natural Experiments: A natural experiment also is called a quasi-experiment. A natural experiment involves making a prediction or forming a hypothesis and then gathering data by observing a system. The variables are not controlled in a natural experiment.Controlled Experiments: Lab experiments are controlled experiments, although you can perform a controlled experiment outside of a lab setting! In a controlled experiment, you compare an experimental group with a control group. Ideally, these two groups are identical except for one variable, the independent variable.Field Experiments: A field experiment may be either a natural experiment or a controlled experiment. It takes place in a real-world setting, rather than under lab conditions. For example, an experiment involving an animal in its natural habitat would be a field experiment. Variables in an Experiment Simply put, a variable is anything you can change or control in an experiment. Common examples of variables include temperature, duration of the experiment, composition of a material, amount of light, etc. There are three kinds of variables in an experiment: controlled variables, independent variables and dependent variables. Controlled variables, sometimes called constant variables are variables that are kept constant or unchanging. For example, if you are doing an experiment measuring the fizz released from different types of soda, you might control the size of the container so that all brands of soda would be in 12-oz cans. If you are performing an experiment on the effect of spraying plants with different chemicals, you would try to maintain the same pressure and maybe the same volume when spraying your plants. The independent variable is the one factor that you are changing. It is one factor because usually in an experiment you try to change one thing at a time. This makes measurements and interpretation of the data much easier. If you are trying to determine whether heating water allows you to dissolve more sugar in the water then your independent variable is the temperature of the water. This is the variable you are purposely controlling. The dependent variable is the variable you observe, to see whether it is affected by your independent variable. In the example where you are heating water to see if this affects the amount of sugar you can dissolve, the mass or volume of sugar (whichever you choose to measure) would be your dependent variable. Examples of Things That Are Not Experiments Making a model volcano.Making a poster.Trying something, just to see what happens. On the other hand, making observations or trying something, after making a prediction about what you expect will happen, is a type of experiment. Sources Bailey, R.A. (2008). Design of Comparative Experiments. Cambridge: Cambridge University Press. ISBN 9780521683579.Beveridge, William I. B., The Art of Scientific Investigation. Heinemann, Melbourne, Australia, 1950.di Francia, G. Toraldo (1981). The Investigation of the Physical World. Cambridge University Press. ISBN 0-521-29925-X.Hinkelmann, Klaus and Kempthorne, Oscar (2008). Design and Analysis of Experiments, Volume I: Introduction to Experimental Design (Second ed.). Wiley. ISBN 978-0-471-72756-9.Shadish, William R.; Cook, Thomas D.; Campbell, Donald T. (2002). Experimental and quasi-experimental designs for generalized causal inference (Nachdr. ed.). Boston: Houghton Mifflin. ISBN 0-395-61556-9.

Analysis Of Forest Mcdonad s States Rights And The Union

In Forest McDonad’s States Rights and the Union: Imperium in the Imperio, 1776-1876, he simply begins the book by stating the main problem that the United States faced during the first one hundred years of existence: the state and national government authority were not easily separated. Before the time period of which McDonald analyzes, the people of the future country, the United States, lived in England, where the line between state and national government authority was clear. McDonald mentions the Act of Settlement of 1701 where Parliament decided the plan of succession, and he mentions how Parliament could not compromise when English colonists who were settled in America questioned their right to tax or make laws for the colonists.†¦show more content†¦The Declaration of Independence is split up into three parts. The preamble states the beginning and the purpose of the country, the government being put into place, and how the government can be destroyed if necessa ry. The rather lengthy second part of the Declaration is filled with accusations of the King of Great Britain of the time. The actual declaration occurs in the third part of the document; in this part of the document, the states are declared free and independent where they hold the power to â€Å"’levy War, conclude Peace, contract Alliances†¦Ã¢â‚¬â„¢Ã¢â‚¬  (10). Yet, the union itself can only do these three acts. The country’s issue of determining where the states’ and the union’s power ends and begins starts with the first document of the entire existence of the United States. McDonald brings up the interesting point concerning War of 1812 again dealing where the authority of the government and the states lie. Many did not agree with going to war in the beginning, and even the votes in the Senate and the House were pretty divided. Those in the New England states protested and refused to fight in the war. According to the Declaration of Independen ce, the states are sovereign; yet, when the War of 1812 was on the horizon and without the approval from Congress, Madison issued for one hundred thousand men in the militia to gather and fight for the United States against the British. The people of the New England were furious; even the governor of Massachusetts hindered

KOA Team Free Essays

The team  KOA works with the motive of solving customer needs with innovative use of technology. Innovation is done by the taking the feedbacks of the existing technologies and comparing with the most dynamic products present in the market. It is expected from us to launch new products and learn from customer interactions to make them better. We will write a custom essay sample on KOA Team or any similar topic only for you Order Now The team works on the flaws by brining in different perspectives to find new solutions to problems. Continuous commerce innovation grounds are laid down at the speed of business. The present website of dell is found to have some flaws for which we are working on making Dell.com more responsive. MOTIVATIONAs we build our Future State Commerce Platform, we believe our success is to build an open, extensible and participative platform that can be extended to meet the diverse needs of customers and our business in a self-service fashion. Research of the industry and defining what a modern Developer Experience Consist of and work dynamics are taken in consideration. Building a strategy that can outline how Dell Digital and IT can build this great Developer Experience. Delivering a prototype that showcases with documentation and code examples what each use case at the end of the project. Embracing the Pivotal Labs development model for continuous improvement and delivery. Empowering all organizations to leverage the platform to create their own services, apps, and experiences. ABOUT PROJECT KOA(A) PIVOTAL PRACTICES Cloud Foundry  is an  open source, multi cloud application  platform as a service  (PaaS) governed by the Cloud Foundry Foundation. The software was originally developed by  VMware  and then transferred to  Pivotal Software, a joint venture by  EMC,  VMware  and  General Electric.   the creation of the Cloud Foundry Foundation, the Cloud Foundry software (source code and all associated trademarks) was transferred to be held by the open source software foundation. It is primarily written in  Ruby,  Go  and  Java. Cloud Foundry is promoted for  continuous delivery  as it supports the full application development lifecycle, from initial development through all testing stages to deployment. Cloud Foundry’s container-based architecture runs apps in any programming language over a variety of cloud service providers. This multi-cloud environment allows developers to leverage the cloud platform that suits specific app workloads and move those workloads as necessary within minutes with no changes to the app. Users have access to one or more  spaces, which typically correspond to a lifecycle stage. For example, an application ready for QA testing might be  pushed  (deployed) to its project’s QA space. Different users can be restricted to different spaces with different access permissions in each. When an application is deployed to Cloud Foundry, an image is created for it and stored internally. The image is then deployed to a  Warden  container to run in. For multiple instances, multiple images are started on multiple containers. This is where  BOSH  comes in – Cloud Foundry’s internal Controller uses BOSH to get the underlying infrastructure to spin up virtual machines to run the Warden containers on. When an application is deleted, all of its containers are destroyed and their resources are freed for other applications to use. If the application instance crashes, its container is killed and a new Warden container is started automatically. A container only ever runs one application ensuring isolation, security and resilience.A load-balancing router sits at the front of Cloud Foundry to route incoming requests to the correct application – essentially to one of the containers where the application is running. PAIR PROGRAMMING We pair our product managers, designers and engineers with counterparts from your team to work side by side, in the same office, 40 hours a week. The deliberate practice of staffing every workstation with two software engineers focused on writing software together. Similar to rally racing, the driver and navigator have the same goal – write high-quality and maintainable code that works. The driver and navigator can often switch roles throughout a programming session (unlike in rally racing). Driver: In addition to what the Navigator does – Actively typing at the keyboard, can yield to navigator   Navigator: Error checking, looking up APIs, thinking about ways to better structure the code, can jump in and drive It is seen that there are lot of benefits in pairing. The team which working through this practice gets boosting efficiency through collaboration during working. Knowledge can be shared dynamically during works hours, thus making the team more enthusiastic and skill can be transferred simultaneously rather than wasting time in learning the same. It not only enhance our skills but also prevents knowledge silo.There is even cent percent transparency in work. KOA PLATFORM TENETS Global: Provide global services that can be configured for regional needs. Customer experience is consistent regardless of location.Modern: Design extensible, scalable, loosely coupled systems and favor open versus closed systems to power experiences from mobile, to desktop, to voice and beyond.Agile: Operate in an ever changing world and to make rapid progress. Empower small balanced teams to operate independently and adapt quickly.Balanced: Technology serves the business and we balance speed of business value delivery with long term technology purity.Transparent: Inspire trust by providing open access to information and services. Progress will be measured by demonstration of capabilities.Pragmatic: When choosing between out of the box and custom solutions, opt for the solution that provides the most flexibility, at the lowest long-term cost. Use Dell technology when possible.Personalized: Start with our internal and external customers and work back to anticipate needs in real time based on data insights. Our systems understand individual customers to present relevant experiences. COMMERCE TRANSFORMATION AND CUSTOMER BENEFITSE Commerce isn’t new anymore, and as its novelty fades we’re seeing businesses looking to hone their digital strategies to perfection. It is found that customer satisfaction is almost always the main goal, and as a result, that is what’s driving most business strategies. This, in turn, is pushing organizations to adopt additional changes and bring in transformation in e-commerce. Some of the new innovation which are going to be implemented in the project is listed below. DELIVERABLES The product should seamlessly interact with Dell Technologies entire Product Offering so that we can achieve our desired outcome across our entire experience. CONCLUSION Become familiar with the most modern technologies used to build great developer communitiesUnderstand the importance of using modern tools to increase velocity of ITOutside in view of Developer ExperiencesInternal interviews and research across Developers and functionsDefinition of Developer Experiences by employee personas (Software Developers, Content Ops, UX Design, Analytics, Business)Deliver 2 to 3 Demos that can be immediately actioned by Dell. How to cite KOA Team, Papers

Literacy Analysis of Symbolism in The Necklace free essay sample

â€Å"The Necklace,† by Guy de Maupassant, is set in old-age France and is about a middle-class woman who is very greedy and ambitious and has a desire to get into the upper-class society through her husband who is a government clerk and her rich friend but ends up destroying her life in vain. Throughout the story, the diamond necklace, the centerpiece of the story, is shown by the author to symbolize and represent many themes, such as wealth and high social status along with the idea that ambition can lead to doom and most importantly, the idea that appearances can be deceiving.In the story, the author uses the diamond necklace to represent many things, of which two of the most obvious and direct are wealth and high social status. In the real world a necklace usually represents beauty, but the diamond necklace in this case represents more than that. Although Madame Loisel looks great with a new, beautiful dress worth â€Å"four hundred francs,† she needs the necklace b ecause she has no jewels and thinks that it is â€Å"humiliating† to look â€Å"poor† in the middle of rich women. We will write a custom essay sample on Literacy Analysis of Symbolism in The Necklace or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page That can be an indication of the necklace representing great wealth as she selects the diamond necklace over some bracelets, a pearl necklace and a beautiful â€Å"Venetian cross† in â€Å"gold and gems. † The necklace can also be used to represent high social status. Besides to look rich, Madame Loisel also needs the necklace because she says the party will have many important and high class people and she doesn’t want to look out of place. Another piece of supporting evidence is that Madame Forestier probably always goes to parties with important people. To represent her social class, she thinks that she needs a â€Å"string of diamonds,† even if they were all imitation. Looking at the story directly, the diamond necklace symbolizes wealth and high social status.If you dive deeper into the story, however, the diamond necklace can also represent more ideas, such as if you are too greedy, vain or ambitious, it could lead to your doom. Madame Loisel is very vain, believing that she is â€Å"born for every delicacy and luxury† and feels that â€Å"she was made for† beautiful jewels and clothes. She has a greed for praise, wishing eagerly to charm and be sought after. Because of all those traits, she borrows the necklace from Madame Forestier for the party to satisfy her ambitions and greed. However, when she goes home, she loses the necklace and has to borrow massive amounts of cash to buy a replacement. That dooms her and her husband’s lives as they have to work hard and live in â€Å"abject poverty† for ten years to pay back the debt. Therefore, the diamond necklace can also indirectly symbolize the idea of ambition leading to doom because of what happened to Madame Loisel.Furthermore, the diamond necklace can also indirectly represent the idea of appearances being deceiving. The idea is well illustrated in the story with two examples. The first example is the necklace itself. Throughout the story, almost all of the characters (including the reader) think that the necklace is genuine. However, at the very end, Madame Forestier reveals that the necklace is actually an imitation and worth only five hundred francs. Another illustration is Madame Loisel. At the party, she appears to be rich, high class and is the â€Å"prettiest woman present,† but in reality, she is not rich, the jewels belong to Madame Forestier and she is actually only middle class. Overall, the necklace can be used to symbolize the idea of appearances can be deceiving because appearances usually do not represent the reality.The diamond necklace in the story can represent many different ideas both directly and indirectly. Out of the many ideas discussed in this essay, the best is the idea of appearances being deceiving. All of the other ideas wealth, high social class, ambition leading to doom, can also apply to the story without the final line where Madame Forestier reveals that the necklace is actually imitation. However, the author deliberately reveals the truth at the end of the story which echoes that the diamond necklace symbolizes the idea of appearances being deceiving. It is probably what the author intended the necklace to symbolize. In conclusion, the necklace can be used to represent a whole range of ideas even though the idea of appearances being deceiving is considered one of the best.