Types of Variable A variable is any factor‚ trait‚ or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent‚ dependent‚ and controlled. Dependent and Independent Variables Independent variable The independent variable is the one that is changed by the scientist. To insure a fair test‚ a good experiment has only one independent variable. As the scientist changes the independent variable‚ he
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The first issue is regarding the effectiveness of an NGO and their volunteers and leaders‚ who are typically outsiders to the community. How well and how much do the NGO involved know about their clients‚ and indeed‚ is there a need to know every aspect of a community in order for effective aid? On another note‚ how can we measure an NGO’s performance‚ and should we do so using quantitative methods in the first place? How true is the economic mandate that one does not spend others’ money as carefully
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Materials 2011‚ 4‚ 845-856; doi:10.3390/ma4040845 OPEN ACCESS Article ISSN 1996-1944 www.mdpi.com/journal/materials materials Preparation‚ Characterization and Performance of Templated Silica Membranes in Non-Osmotic Desalination Bradley P. Ladewig 1‚2‚3‚ Ying Han Tan 4‚ Chun Xiang C. Lin 4‚ Katharina Ladewig 2‚3‚ João C. Diniz da Costa4 and Simon Smart 4‚* 1 2 3 4 Department of Chemical Engineering‚ Faculty of Engineering‚ Monash University‚ VIC 3800‚ Australia; E-Mail:
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What Are The Major Components of Biological Membranes And How Do They Contribute To Membrane Function?. Summary. The role of the biological membrane has proved to be vital in countless mechanisms necessary to a cells survival. The phospholipid bilayer performs the simpler functions such as compartmentation‚ protection and osmoregulation. The proteins perform a wider range of functions such as extracellular interactions and metabolic processes. The carbohydrates are found in conjunction
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Explain the concept of potential output and why actual output can differ from potential output? (2 marks) Potential output is the amount of output that an economy can produce when using its resources such as capital and labour‚ at normal rates. Potential output is not a fixed number but grows over time‚ reflecting increases in both the amounts of available capital and labour and their productivity. As capital and labour can be utilised at greater than normal rates‚ at least for a time‚
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Chapter 1 3. From where do the new jobs in America derive? Why? Smaller firms created 81.5 percent of the net new jobs in the economy from 1960 to 1976. These small businesses (those with less than 500 employees) represent more than 99 percent of all employers and provide 75 percent of all (net) new jobs. Small companies employ somewhat more than half of the U.S. workforce. Entrepreneurial firms account for a significant amount of employment growth. A handful of “gazelles‚” those who grow by twenty
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When a ball is dropped/ thrown to the ground‚ gravity forces the ball to move downwards‚ whilst the ball falls down‚ the Gravitational Potential Energy (GPE) that the ball has transforms into Kinetic energy. As the ball hits the ground with maximum Kinetic energy‚ the forces in play flatten and deform the frame/shape of the ball by compressing and dispersing the molecules that essentially make up the ball. As stated in the law of conservation energy‚ energy can neither be created nor destroyed; rather
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applying a net force‚ the object speeds up and thereby gains kinetic energy(Kinetic Energy) which will make my car go further. This illustrates how if there is more potential energy than kinetic energy the car won’t go nearly as far as it could. According to my research‚ potential energy is stored energy that is waiting to be used(Potential Energy)‚ so that means
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Transient Receptor Potential (TRP) channels‚ and in particular‚ Transient Receptor Potential Vanilloid type 1 (TRPV1) and Transient Receptor Potential Ankyrin Type 1 (TRPA1)(15‚18). In this review‚ TRPV1 and other channels‚ such as TRPA1 induced pain are looked at. As possible drug targets‚ there have been studies with various antagonists‚ that have seen downregulation of expression of TRPV1‚ however‚ there are problematic side effects such as hyperthermia(3‚17). What are transient potential receptor channels
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Marine organisms: Potential source for drug discovery. Life has originated from the oceans that cover over 70% of the earth’s surface and contain highly ecological‚ chemical and biological diversity starting from microorganisms to vertebrates. This diversity has been the source of unique chemical compounds‚ which hold tremendous pharmaceutical potential. New trends in drug discovery from natural sources emphasize on investigation of the marine ecosystem to explore numerous complex and novel chemical
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