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Science, Technology And Innovation Indicators : Lessons from the Development Experience in Africa
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Judgment Night: A Selection of Science Fiction
Released in 1952, Judgment Night collects five Moore novellas from the pages of editor John W.Campbell, Jr.'s Astounding Science Fiction magazine:''Judgment Night'' (first published in August and September, 1943) balances a lush rendering of a future galactic empire with a sober meditation on the nature of power and its inevitable loss; ''The Code'' (July, 1945) pays homage to the classic Faust with modern theories and Lovecraftian dread; ''Promised Land'' (February, 1950) and ''Heir Apparent'' (July, 1950) both document the grim twisting that mankind must undergo in order to spread into the solar system; ''Paradise Street'' (September, 1950) shows a futuristic take on the old western conflict between lone hunter and wilderness-taming settlers. Chosen by the author herself as the best of her longer-form writing, these stories show a gifted wordsmith working at the height of her talents.
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High-Performance Cams & Valvetrains : Theory, Technology, and Selection
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Selection
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Is the selection of African elephants there stabilizing selection and directional selection?
The selection of African elephants can be considered stabilizing selection. Stabilizing selection occurs when the average phenotype is favored, and extreme phenotypes are selected against. In the case of African elephants, traits such as tusk size and body size may be under stabilizing selection, as individuals with average-sized tusks and bodies are more likely to survive and reproduce. On the other hand, directional selection may also be at play in certain traits of African elephants. Directional selection occurs when one extreme phenotype is favored over the other, leading to a shift in the average phenotype over time. For example, if there is increased poaching pressure on elephants with larger tusks, this could lead to directional selection favoring individuals with smaller tusks. Overall, the selection of African elephants likely involves a combination of stabilizing and directional selection, depending on the specific traits and environmental pressures at play.
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Is the Bundeswehr selection test an impossible selection process?
The Bundeswehr selection test is not an impossible selection process, but it is certainly challenging. The test is designed to assess a candidate's physical fitness, mental aptitude, and leadership potential. While it may be difficult, it is not impossible for candidates to pass the selection test with proper preparation and determination. The test is meant to identify individuals who are capable of meeting the demands of serving in the German armed forces, and those who successfully pass the test demonstrate their readiness for the role.
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What is selection?
Selection is the process by which certain traits or characteristics become more common in a population over time due to their advantageous nature. It occurs through the differential survival and reproduction of individuals with these traits, leading to the passing on of these advantageous traits to future generations. Selection can be natural, where environmental factors determine which traits are favored, or artificial, where humans intentionally breed individuals with desired traits. Overall, selection plays a crucial role in shaping the genetic makeup of populations and driving evolution.
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What are the differences between natural selection and artificial selection?
Natural selection is the process by which organisms better adapted to their environment tend to survive and reproduce more successfully, leading to the evolution of species over time. On the other hand, artificial selection is the process by which humans intentionally select and breed organisms with specific traits to produce offspring with desired characteristics. While natural selection occurs in nature without human intervention, artificial selection is driven by human manipulation and breeding practices. Additionally, natural selection is a gradual process that occurs over generations, while artificial selection can produce rapid changes in traits within a few generations.
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Anthropic Bias : Observation Selection Effects in Science and Philosophy
Anthropic Bias explores how to reason when you suspect that your evidence is biased by "observation selection effects"--that is, evidence that has been filtered by the precondition that there be some suitably positioned observer to "have" the evidence.This conundrum--sometimes alluded to as "the anthropic principle," "self-locating belief," or "indexical information"--turns out to be a surprisingly perplexing and intellectually stimulating challenge, one abounding with important implications for many areas in science and philosophy.There are the philosophical thought experiments and paradoxes: the Doomsday Argument; Sleeping Beauty; the Presumptuous Philosopher; Adam & Eve; the Absent-Minded Driver; the Shooting Room. And there are the applications in contemporary science: cosmology ("How many universes are there?", "Why does the universe appear fine-tuned for life?"); evolutionary theory ("How improbable was the evolution of intelligent life on our planet?"); the problem of time's arrow ("Can it be given a thermodynamic explanation?"); quantum physics ("How can the many-worlds theory be tested?"); game-theory problems with imperfect recall ("How to model them?"); even traffic analysis ("Why is the 'next lane' faster?"). Anthropic Bias argues that the same principles are at work across all these domains. And it offers a synthesis: a mathematically explicit theory of observation selection effects that attempts to meet scientific needs while steering clear of philosophical paradox.
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Feature Engineering and Selection : A Practical Approach for Predictive Models
The process of developing predictive models includes many stages.Most resources focus on the modeling algorithms but neglect other critical aspects of the modeling process.This book describes techniques for finding the best representations of predictors for modeling and for nding the best subset of predictors for improving model performance.A variety of example data sets are used to illustrate the techniques along with R programs for reproducing the results.
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Pioneering Progress : American Science, Technology, and Innovation Policy
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Research and Technical Writing for Science and Engineering
Engineering and science research can be difficult for beginners because scientific research is fraught with constraints and disciplines.Research and Technical Writing for Science and Engineering breakdowns the entire process of conducting engineering and scientific research.This book covers those fascinating guidelines and topics on conducting research, as well as how to better interact with your advisor. Key Features:advice on conducting a literature review, conducting experiments, and writing a good paper summarizing your findings. provides a tutorial on how to increase the impact of research and how to manage research resources. By reflecting on the cases discussed in this book, readers will be able to identify specific situations or dilemmas in their own lives, as the authors provide comprehensive suggestions based on their own experiences.
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How can one justify the selection of literature for a research paper?
When selecting literature for a research paper, it is important to choose sources that are relevant, credible, and up-to-date. The selected literature should provide a solid foundation for the research topic and support the arguments being made. Additionally, the literature should offer different perspectives and viewpoints to ensure a comprehensive analysis of the topic. Justifying the selection of literature involves demonstrating how each source contributes to the overall understanding of the research question and adds value to the paper.
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What does selection mean?
Selection refers to the process of choosing individuals with specific traits or characteristics to reproduce, leading to a change in the frequency of those traits in a population over time. This process can be natural, such as when certain traits provide a survival advantage in a particular environment, or artificial, when humans intentionally breed individuals with desired traits. Selection is a key mechanism of evolution, driving the adaptation of populations to their environments.
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What is natural selection?
Natural selection is the process by which organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring. Over time, this leads to the accumulation of beneficial traits in a population, increasing its overall fitness and ability to thrive in its environment. Natural selection is a key mechanism of evolution, driving the gradual change and adaptation of species over generations.
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What is artificial selection?
Artificial selection is the process by which humans intentionally breed plants or animals with specific desirable traits in order to produce offspring with those traits. This process has been used for thousands of years to create domesticated plants and animals that are better suited for human needs, such as higher crop yields or more docile behavior. Through selective breeding, humans can influence the genetic makeup of a population to create organisms with desired characteristics.
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