Xem 1-20 trên 112 kết quả Biological assessment
  • (USGS) is to assess the quantity and quality of the natural resources of the Nation and to provide information that will assist resource managers and policymakers at Federal, State, and local levels in making sound decisions. Assessment of water-quality conditions and trends is an important part of this overall mission. One of the greatest challenges faced by waterresources scientists is acquiring reliable information that will guide the use and protection of the Nation’s water resources.

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  • In recent years, completion of the sequencing of the human genome as well as the genomes of dozens of other organisms and subsequent development of tools for comprehensive analysis of other cellular constituents have revolutionized biology. These new technologies, referred to broadly as “genomics,” have integrated biologic sciences with information sciences and engineering.

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  • In this 3rd edition of Anatomy, Histology, and Cell Biology: PreTest Self-Assessment and Review, a significant number of changes and improvements have been made. This PreTest reviews all of the anatomical disciplines encompassing early embryology, cell biology, histology of the tissues and organs, as well as regional human anatomy of the head and neck, thorax, abdomen, pelvis, extremities, and spine. This edition represents a comprehensive effort to integrate the anatomical disciplines with clinical scenarios and cases.

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  • Biological solution using strain Lipomyces starkeyi 7.1, which can produce viscous membranes to improve dry soil is considered to be sustainable for slope land improvement. The results of research on Lipomycin M ability to keep effective water in the soil of Me Linh District, Vinh Phuc Province show that in the soil samples cultivated traditional medicinal trees, the total amounts of effective water in the soil fertilized Lipomycin M (taken out under pressure pF 2.5-4.

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  • What is the CUNY Assessment Test in Writing (CATW)?  The CUNY Assessment Test in Writing (CATW) is a standardized writing test that measures a student’s ability to do college-level writing in English. Entering first-year students take the test to determine their placement into English composition, ESL, or developmental courses. In addition, the CATW is used to determine when students are ready to exit from developmental writing courses and move on to college-level courses.

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  • Estimated Average Requirement When florid manifestations of the classic dietary deficiency diseases such as rickets, scurvy, xerophthalmia, and protein-calorie malnutrition were common, nutrient adequacy was inferred from the absence of their clinical signs. Later, it was determined that biochemical and other changes were evident long before the clinical deficiency became apparent. Consequently, criteria of nutrient adequacy are now based on biologic markers when they are available.

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  • Physiologic Factors Growth, strenuous physical activity, pregnancy, and lactation increase needs for energy and several essential nutrients, including water. Energy needs rise during pregnancy, due to the demands of fetal growth, and during lactation, because of the increased energy required for milk production. Energy needs decrease with loss of lean body mass, the major determinant of REE. Because both health and physical activity tend to decline with age, energy needs in older persons, especially those over 70, tend to be less than those of younger persons.

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  • Since the early 1990s, the United States has been concerned about the diversion of expertise and sensitive information from the nuclear, biological, and chemical (NBC) weapons complexes of the former Soviet Union (FSU). This documented briefing offers an assessment of the threat of diversion from the FSU and examine

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  • This committee was assembled to provide expertise in the areas of science and technology pertinent to the concerns of the CBDCOM commander and executive director and the technical director of the Edgewood Research, Development and Engineering Center (RDEC), which historically has been an important organization in the Army and Department of Defense for chemical and biological research.

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  • Meeting report Genomic, chromosomal and allelic assessment of the amazing diversity of maize Virginia Walbot Address: Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA. E-mail: walbot@stanford.edu comment Published: 28 May 2004 reviews Genome Biology 2004, 5:328 The electronic version of this article is the complete one and can be found online at http://genomebiology.com/2004/5/6/328 © 2004 BioMed Central Ltd A report on the 46th Annual Maize Genetics Conference, Mexico City, Mexico, 11-14 March 2004.

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  • It then outlines agriculture’s importance to the U.S. economy, assesses the vulnerabilities in the general food industry, examines the capabilities that are needed to exploit those vulnerabilities, and explores the likely outcomes from a successful attack. The report next considers the question of why terrorists have yet to employ agricultural assaults as a method of operation and concludes with proposed recommendations for the U.S. policymaking community.

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  • As a wetland of international importance located in China, the Poyang Lake Basin's incredible topographical and biological diversity has provided a congregating point for scientists from around the world to engage in cross-disciplinary research. In particular, the International Conference on Poyang Lake Complex Environment System was instrumental in bringing together scholars from China, North America, and Europe to explore the latest innovations in water resource science and watershed management.

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  • Agricultural biotechnology offers great promise for Africa and tissue culture and marker-assisted selection are already in widespread use across the continent. However, the safe application of these technologies requires functioning biosafety systems. The report focuses on the special issues related to biosafety in Africa.Crops can be improved by conventional breeding, by tissue culture and by marker-aided selection. But for many improvements - such as drought and salinity tolerance - GM technology is going to be essential.

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  • The public demand for the protection of human and environmental health has led to the establishment of toxicology as the science of the action of chemicals on biological systems. Toxicological research is focused presently very much on the elucidation of the cellular and molecular mechanisms of toxicity and the application of this knowledge in safety evaluation and risk assessment.

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  • The soil ecosystem provides services such as carbon sequestration, nutrient cycling, water purification, provisioning of industrial and pharmaceutical goods, and a mitigating sink for chemical and biological agents. However, the soil is subject to various degradation processes. Its relation with the hydrosphere, biosphere, and atmosphere makes the interacting processes even more complex. Moreover, as the soilhuman interactions increase, threats, leading to a series of impacts on soil health, become more important....

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  • Steroids - From Physiology to Clinical Medicine covers contemporary basic science on steroids research, along with steroids practical application in clinical medicine. We start by describing physiological and pathophysiological roles of steroids, with reference to production and action of gonadal steroids, role of steroid sulfonation, sex specific and steroids-dependent mechanism of hippocampal function, and the hydroxysteroid dehydrogenases for the modulation of tissue glucocorticoid availability.

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  • Artificial Intelligence (AI) has been from its beginning the wave of evolution in computer science. It is in good health and a proof of it is the fact that many companies qualify its novelties as ‘smart’ or ‘intelligent’ independently of the features included in them; the term ‘society of knowledge’ has been imposed to draw society nearer to the future and a symbol of breakthrough.

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  • The book describes the design, construction, and maintenance of innovative ET covers for landfills and waste. The author discusses why several vegetative covers have failed and provides simple, inexpensive solutions. He examines the design and construction of ET covers and other methods, highlighting their differences and successful alternative construction methods. The text contains the first proposed performance measurements for conventional and innovative landfill covers based on the data collected at more than fifty-five sites.

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  • Dr. Christiane Averbeck is executive director of Transfer-21, a Germany-wide program on education for sustainable development. She has worked as a consultant for the German Council for Sustainable Development, conducted a research project on sustainable resource use in Uganda, worked as a senior advisor for a German NGO in Uganda, and as senior researcher in a project funded by the Federal Environmental Agency on marine pollution. She holds a Master’s degree in biology and a Ph.D. in natural science. ...

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  • Sound emission studies have been launched in the early 1950s. The technology before the mid-1960s, mainly in electronics engineering and materials, enabling rapid development of the method. Currently technical pronounced applied to a number of research areas, both in civil and industrial use.

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