Xem 1-20 trên 281 kết quả Biological resources
  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Dynamical analysis of a biological resource management model with impulsive releasing and harvesting

    pdf31p sting06 16-02-2012 14 2   Download

  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: NeMeSys: a biological resource for narrowing the gap between sequence and function in the human pathogen Neisseria meningitidis...

    pdf0p thulanh21 15-11-2011 25 1   Download

  • Chapter 36 - Resource acquisition and transport in vascular plants. This chapter describe how proton pumps function in transport of materials across membranes; define the following terms: osmosis, water potential, flaccid, turgor pressure, turgid; explain how aquaporins affect the rate of water transport across membranes; describe three routes available for short-distance transport in plants;...

    ppt75p tangtuy02 08-03-2016 4 1   Download

  • 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.

    pdf300p 951628473 04-05-2012 59 31   Download

  • The state of aquatic ecosystems reflects the general state of the biosphere. The situation in the biosphere affected by anthropogenic factors was characterized as “a slow explosion” (Fedorov 1987). The global change in the biosphere and climatic system of the Earth is a manifestation of this “slow explosion” (World Resources 1990–1991, Izrael et al. 1992).

    pdf245p crazy_sms 10-05-2012 35 12   Download

  • The science of vascular biology has emerged and expanded rapidly over the past 25 years. Research in this area has increased understanding of a wide range of clinical conditions. This book provides a broad overview of the Weld for both specialist and newcomer to the Weld, and concise resource for the non-specialist. The multidisciplinary team of contributors covers topics ranging from normal and pathological aspects of endothelial cell function to the role of the vasculature in pregnancy, hypertension and atherosclerosis....

    pdf471p hyperion75 18-01-2013 25 8   Download

  • Conserving Living Natural Resources provides students, managers, and general readers with an introduction to the principles of managing biological resources. It presents the historical and conceptual contexts of three seminal approaches to the management of living natural resources: utilitarian management for harvest of featured species and control of unwanted species, protection and restoration of populations and habitats to maintain biodiversity, and management of complex ecosystems to sustain both productivity and biodiversity.

    pdf444p huetay_1 28-02-2013 25 8   Download

  • Tham khảo sách 'biological science and biotechnology in russia', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf157p banhkem0908 24-11-2012 28 6   Download

  • From microorganisms to whales, from single cells to complex organisms, from plants to animals to fungi, from body plans to behavior, the diversity of life is amazing. Living organisms have a profound impact on our physical world of ocean, landscape, and climate; around us is a multitude of diverse ecosystems that provide a livable environment and many valuable resources. The study of life—biology—is a multifaceted endeavor that uses observation, exploration, and experiments to gather information and test hypotheses about topics ranging from climate change to stem cells.

    pdf209p mnemosyne75 02-02-2013 21 4   Download

  • Over the years, I have not lost my enthusiasm for ecological economics and the conservation of nature. Therefore, I was delighted when Edward Elgar told me that he would be interested in publishing a second edition of Economics of Environmental Conservation and suggested a practical method for producing the new manuscript. The first edition of the Economics of Environmental Conservation was published in 1991 by Elsevier Science Publishers.

    pdf308p coeus75 29-01-2013 16 3   Download

  • In this paper, we demonstrate three NLP applications of the BioLexicon, which is a lexical resource tailored to the biology domain. The applications consist of a dictionary-based POS tagger, a syntactic parser, and query processing for biomedical information retrieval. Biological terminology is a major barrier to the accurate processing of literature within biology domain. In order to address this problem, we have constructed the BioLexicon using both manual and semiautomatic methods. We demonstrate the utility of the biology-oriented lexicon within three separate NLP applications. ...

    pdf4p bunthai_1 06-05-2013 19 2   Download

  • Goal It is to provide scientific arguments about the biological characteristics, and reproductive and rearing techniques of Channa lucius. The success of the project will contribute greatly to the development process of Channa lucius hatchery to supply artificial fish for aquaculture systems and renewable fish resources in the wild in the Mekong Delta as well as in the whole country.

    pdf28p change05 08-06-2016 12 2   Download

  • Optimal use of genome sequences and gene-expression resources requires powerful phenotyping platforms, including those for systematic analysis of metabolite composition. The most used technologies for metabolite profiling, including mass spectral, nuclear magnetic resonance and enzyme-based approaches, have various advantages and disadvantages, and problems can arise with reliability and the interpretation of the huge datasets produced. These

    pdf0p thulanh21 15-11-2011 20 1   Download

  • This strategy provides a tool to support co-ordinated action to improve and expand quality nutrition programming in Somalia in a phased approach over the next three years. It is based on a logical framework and is therefore rooted in actions that if conducted produce results that ultimately mean outcomes are accomplished and the overall development goal is achieved. It is intended as an advocacy document for UN agencies and partners to donors.

    pdf38p nhamnhiqa 01-03-2013 8 1   Download

  • With the overwhelming amount of biological knowledge stored in free text, natural language processing (NLP) has received much attention recently to make the task of managing information recorded in free text more feasible. One requirement for most NLP systems is the ability to accurately recognize biological entity terms in free text and the ability to map these terms to corresponding records in databases.

    pdf4p bunbo_1 17-04-2013 16 1   Download

  • In this paper, we propose an approach for identifying curatable articles from a large document set. This system considers three parts of an article (title and abstract, MeSH terms, and captions) as its three individual representations and utilizes two domain-specific resources (UMLS and a tumor name list) to reveal the deep knowledge contained in the article. An SVM classifier is trained and cross-validation is employed to find the best combination of representations. The experimental results show overall high performance. ...

    pdf4p bunthai_1 06-05-2013 11 1   Download

  • Plant cell walls represent the most abundant renewable resource on this planet. They are rich in mixed complex and simple biopolymers, which has opened the door to the development of wide applications in different technologic fields.

    pdf24p tanbnhp 22-03-2014 24 1   Download

  • Chapter 53 - Population ecology. In this chapter, you should now be able to: Define and distinguish between the following sets of terms: density and dispersion; clumped dispersion, uniform dispersion, and random dispersion; life table and reproductive table; Type I, Type II, and Type III survivorship curves; semelparity and iteroparity; r-selected populations and K-selected populations. This chapter also explain how ecologists may estimate the density of a species, explain how limited resources and trade-offs may affect life histories,...

    ppt118p tangtuy02 08-03-2016 6 1   Download

  • In this chapter, you should now be able to: Define and distinguish between the following sets of terms: density and dispersion; clumped dispersion, uniform dispersion, and random dispersion; life table and reproductive table; Type I, Type II, and Type III survivorship curves; semelparity and iteroparity; r-selected populations and K-selected populations. This chapter also explain how ecologists may estimate the density of a species, explain how limited resources and trade-offs may affect life histories,...

    ppt85p tangtuy09 21-04-2016 6 1   Download

  • What is Economics? Economics is not a natural science, i.e. it is not concerned with studying the physical world like chemistry, biology. Social sciences are connected with the study of people in society. It is not possible to conduct laboratory experiments, nor is it possible to fully unravel the process of human decisionmaking. “Economics is the study of how we the people engage ourselves in production, distribution and consumption of goods and services in a society.” Normative economics and Positive Economics: Normative economics refers to value judgments, e.g.

    pdf178p conrepcon 12-04-2012 56 22   Download

Đồng bộ tài khoản