International biology

Xem 1-20 trên 199 kết quả International biology
  • THEORETICAL TEST: PART B GENERAL INSTRUCTIONS 1. Open the envelope after the start bell rings. 2. A set of questions and an answer sheet are in the envelope. 3. Write your 4-digit student code in every student code box. 4. The questions in Part B may have more than one correct answer. Fill the Answer Sheet with checkmarks (√), numbers, or characters to answer each question. 5. Use pencils and erasers. You can use a ruler and a calculator provided.

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  • THEORETICAL TEST: PART A GENERAL INSTRUCTIONS 1. Open the envelope after the start bell rings. 2. A set of questions and an answer sheet are in the envelope. 3. Write your 4-digit student code in every student code box. 4. The questions in Part A have only one correct answer. Mark the correct answer with “X” on the Answer Sheet clearly, as shown below.

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  • GENERAL INSTRUCTIONS THEORETICAL TEST:PART A 1. Open the envelope after the start bell rings. 2. A set of questions and an answer sheet are in the envelope. 3. Write your 4-digit student code in every student code box. 4. Mark only one correct answer with “” on the Answer Sheet clearly, as shown below.

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  • Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy.[1] Biology is a vast subject containing many subdivisions, topics, and disciplines.

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  • Harrison's Internal Medicine Chapter 66. Stem Cell Biology Stem Cell Biology: Introduction Stem cell biology is a relatively new field that explores the characteristics and possible clinical applications of the different types of pluripotential cells that serve as the progenitors of more differentiated cell types. In addition to potential therapeutic applications (Chap. 67), patient-derived stem cells can also provide disease models and a means to test drug effectiveness.

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  • This book is a response to that need for a synthesis. It contains 17 chapters, each prepared by authors who are internation- ally recognized for their knowledge and expertise in a particular area of soil/plant biology.

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  • IAS 2 Inventories was issued by the International Accounting Standards Committee in December 1993. It replaced IAS 2 Valuation and Presentation of Inventories in the Context of the Historical Cost System (originally issued in October 1975). The Standing Interpretations Committee developed SIC-1 Consistency—Different Cost Formulas for Inventories, which was issued in December 1997

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  • Harrison's Internal Medicine Chapter 67. Applications of Stem Cell Biology in Clinical Medicine Applications of Stem Cell Biology in Clinical Medicine: Introduction Organ damage and the resultant inflammatory responses initiate a series of repair processes, including stem cell proliferation, migration, and differentiation, often in combination with angiogenesis and remodeling of the extracellular matrix. Endogenous stem cells in tissues such as liver and skin have a remarkable ability to regenerate the organs, whereas heart and brain have a much more limited capability for self-repair.

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  • As a scientist who has worked for more than 40 years to find cures for infectious disease, I find the idea that terrorists would use biological agents as a weapon to be anathema. It violates the fundamental values of the life sciences that I and my colleagues hold dear: that science is a vital tool for improving life and the health of our planet and enhancing our understanding of the natural world. My own work has focused on cholera, a disease responsible for the death of thousands of people around the world every year.

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  • The forty-fifth volume of this series contains eight reviews written by an international array of authors; as usual, the reviews range widely in subject and taxonomic and geographic coverage. The editors welcome suggestions from potential authors for topics they consider could form the basis of future appropriate contributions. Because an annual publication schedule necessarily places constraints on the timetable for submission, evaluation and acceptance of manuscripts, potential contributors are advised to make contact with the editors at an early stage of preparation.

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  • Harrison's Internal Medicine Chapter 80. Cancer Cell Biology and Angiogenesis Cancer Cell Biology and Angiogenesis: Introduction Two characteristic features define a cancer: unregulated cell growth and tissue invasion/metastasis. Unregulated cell growth without invasion is a feature of benign neoplasms, or new growths. Cancer is a synonym for malignant neoplasm. Cancers of epithelial tissues are called carcinomas; cancers of nonepithelial (mesenchymal) tissues are called sarcomas. Cancers arising from hematopoietic or lymphoid cells are called leukemias or lymphomas.

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  • The 42nd volume of this series contains eight reviews written by an international array of authors that, as usual, range widely in subject and taxonomic and geographic coverage. The majority of articles were solicited, but the editors always welcome suggestions from potential authors for topics they consider could form the basis of appropriate contributions.

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  • This volume is an eclectic mix of applications of Monte Carlo methods in many fields of research should not be surprising, because of the ubiquitous use of these methods in many fields of human endeavor. In an attempt to focus attention on a manageable set of applications, the main thrust of this book is to emphasize applications of Monte Carlo simulation methods in biology and medicine.

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  • In just over ten years, the Textbook of Internal Medicine has become widely regarded as a classic medical text, both for its breadth of coverage and ease of use by busy students and practitioners. Hundreds of talented individuals contributed to the success of the first three editions. These include the many leading scientists and scholars who served as editors and authors, and the dozens of supporting staff who met the organizational and logistical challenges associated with so large a publishing endeavor....

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  • The programme is indebted to the five hundred plus international nurses from twentythree different countries who have worked and studied with us over the last four years at the Oxford Radcliffe Hospitals NHS Trust, the University Hospitals of Leicester NHS Trust and other hospitals. They have tested our new ideas, suggested improvements and shown honesty, courage and a sense of humour throughout. We are particularly grateful to the international nurses who commented on the first drafts of this book....

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  • .The International Rice Research Institute (IRRI) and the Africa Rice Center (WARDA, the acronym for West Africa Rice Development Association) are two of fifteen Future Harvest research centers funded by the Consultative Group on International Agricultural Research (CGIAR). The CGIAR is cosponsored by the Food and Agriculture Organization of the United Nations (FAO), the International Bank for Reconstruction and Development (World Bank), the United Nations Development Programme, and the United Nations Environment Programme.

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  • Cancer Cell Biology The treatment of most human cancers with conventional cytoreductive agents has been unsuccessful due to the Gompertzian-like growth kinetics of solid tumors (i.e., tumor growth is exponential in small tumors, with increasing doubling times as tumors expand; since conventional chemotherapeutic agents target proliferating cells, noncycling cells in large tumors are relatively resistant). Genetic instability is inherent in most cancer cells and predisposes to the development of intrinsic and acquired drug resistance. Thus, although tumors arise from a single cell (i.e.

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  • Harrison's Internal Medicine Chapter 107. Transfusion Biology and Therapy Blood Group Antigens and Antibodies The study of red blood cell (RBC) antigens and antibodies forms the foundation of transfusion medicine. Serologic studies initially characterized these antigens, but now the molecular composition and structure of many are known. Antigens, either carbohydrate or protein, are assigned to a blood group system based on the structure and similarity of the determinant epitopes.

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  • Harrison's Internal Medicine Chapter 74. Biology of Obesity Biology of Obesity: Introduction In a world where food supplies are intermittent, the ability to store energy in excess of what is required for immediate use is essential for survival. Fat cells, residing within widely distributed adipose tissue depots, are adapted to store excess energy efficiently as triglyceride and, when needed, to release stored energy as free fatty acids for use at other sites.

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  • International Tables for Crystallography, Volume F, Crystal- lography of Biological Macromolecules, was commissioned by the International Union of Crystallography (IUCr) in recognition of the extraordinary contributions that knowledge of macro- molecular structure has made, and will make, to the analysis of biological systems, from enzyme catalysis to the workings of a whole cell.

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