population pressure
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Environmental Politics and Law (EVST 255) The lecture reviews the legal and economic strategies that can be used to manage coastal development. Over half of the United States population lives in coastal areas and will be affected by sea level rise and more intense storms. The lecture looks at the conflict between property rights and efforts to protect coastal ecosystems through the use of eminent domain to create national seashores. Bar...more
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Reaction norms depict the range of phenotypes a single genotype can produce, depending on the environment. Reaction norms must fit within an organism's phylogenetic constraints. They can differ for different individuals within a population, but some traits differ very little based on the environment; some do not differ at all.
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Originally, altruism and self-sacrifice were thought to be incompatible with natural selection, even by Darwin. Now we have several explanations for how altruism can increase an individual's fitness. One is kin selection, or the idea that helping relatives can help increase one's genes in the population. Another involves ecological constraints and punishments. Here, individuals contribute to the group and wait their turn to reproduce.
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Early Modern England: Politics, Religion, and Society under the Tudors and Stuarts (HIST 251)Professor Wrightson traces the major economic expansion of the late sixteenth and early seventeenth centuries. Despite occasional crises of mortality, population levels rose steadily, particularly in urban areas. Increased population levels resulted in enhanced agricultural and industrial output. Professor Wrightson reviews the extension of the cul...more
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Early Modern England: Politics, Religion, and Society under the Tudors and Stuarts (HIST 251)Professor Wrightson surveys the changing economic landscape of early modern England in the early sixteenth century. He notes that, throughout the period, population levels rose and, at the same time, inflation caused a rise in prices, and real wages fell. While many landowners were able to raise rents on their lands and profit from enclosing land, ...more
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Earl discusses the importance of understanding and developing games for local markets. EA started a studio in Shanghai to learn about China's gaming population. He also talks about protecting EA's IP via an online distribution mechanism.
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Systems consisting of pendulums and springs can freely oscillate at their natural frequencies (also called normal modes). When we expose a system to a wide spectrum of frequencies, the response will be very large at the normal mode frequencies (resonances) of that system. Examples include musical instruments (standing waves on violin strings and pressure waves in wind instruments), and torsional standing waves on a bridge driven by strong winds.
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Understanding allele and genotype frequency in population in Hardy-Weinberg Equilibrium.
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Using the variance of a sample to estimate the variance of a population.
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When in search for a market, Worthington advises not to focus the company too early. Though there is tremendous pressure in the beginning to focus, this is dangerous; once a company has defined a focus the decision is very hard to undo. Worthington suggests waiting it out and seeing how the product develops before focusing.
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