Xem 1-12 trên 12 kết quả Biological specimens
  • Drug abuse in the developed world is an international problem. In the USA, in an effort to deter drug use and identify abusers so they may receive treatment, testing an individual’s urine has become a large commercial enterprise. Drug testing has also been a traditional part of clinical care in medicine and in the medicolegal investigation of death. While scientists conducting drug testing in the postmortem arena routinely analyze a variety of biological matrices, the specimen of choice in the drug testing industry in the USA is urine and in clinical medicine, serum.

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  • Introduction: Small amount of drugs and poisons incorporated into human bodies are hidden among large amounts of biological components, such as proteins, lipids, nucleic acids and membranes. It is not easy to detect only a target compound from such complicated matrices. Before instrumental analysis, extraction procedure is usually essential and very important.

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  • When the groundwork for the fi fth edition of Clinical Periodontology and Implant Dentistry began in early 2007, it became clear that we had reached a fork in the road. It has always been my intention that each successive edition of this work should refl ect the state of the art of clinical periodontology and, in doing such, should run the gamut of topics within this subject area.

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  • Tham khảo sách 'clinical periodontology and implant dentistry fifth edition: volume 1 basic concepts', y tế - sức khoẻ, y học thường thức phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Science often grows exponentially from certain key insights, and the insight Marvin Minsky had in 1955 is no exception. While working as a postdoctoral fellow at HarvardUniversity, Minsky sought a method to reduce the high level of light scatter that made high contrast imag‐ ing of thick specimens impossible by standard light microscopy.

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  • Tham khảo sách 'clinical periodontology and implant dentistry fifth edition: volume 2 clinical concepts_2', y tế - sức khoẻ, y học thường thức phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Forensic dentistry, like all the forensic sciences, has come a long way since the publication of the last textbook on forensic dentistry. The editors would like to thank the many students and other interested individuals who, over the years, have asked questions that have stimulated some of the answers found in this text. We appreciate the opportunity to share this material and have assembled, we think, an outstanding list of contributors to this topic of forensic dentistry.

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  • This book is designed to explain to dental students the processes of diagnosis and treatment planning, through consideration of clinical cases and problems associated with aspects of all dental specialties. It presents a series of case histories from all the major areas of dentistry, and uses a question-and-answer format to guide readers through the process of examination, differential diagnosis, investigations, diagnosis and treatment. It prepares readers for the wide variety of problems likely to be encountered in clinical practice.

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  • People everywhere expected the new millennium to bring surprises. But the particular shock and horror that rippled through the international viticulture community in 2000 was most unexpected. It had been found that sixteen of the most highly prized varieties of wine-making grapes were the products of mating between the classic Pinot and the classically undervalued Gouais grape. This blew the proverbial cork off the industry's bottle because the Gouais was considered such an inferior specimen that there were even attempts to ban its cultivation in France during the Middle Ages.

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  • Historically, most cancer research has been conducted through small independent projects initiated by individual investigators with relatively small research groups. Such research is driven by focused hypotheses addressing specific biological questions. There will always be a need for this traditional approach to research; in recent years, however, it has also become more feasible to undertake projects on a broader and larger scale, thereby developing extensive pools of data and research tools that can facilitate those more conventional efforts....

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  • This study was aimed to find out the frequency of sputum positive Acid Fast Bacilli (AFB) cases among pulmonary tuberculosis patients and to determine those patients who are the potential source of transmitting infection. Methods: This study was conducted in four medical units of Khyber Teaching Hospital, Peshawar and Chest Unit, Ayub Teaching Hospital, Abbottabad in collaboration with the pathology unit of Khyber Teaching Hospital, Peshawar, and Kohat Institute of Medical Sciences, Kohat.

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  • This atlas provides medical, dental and biology students with an outstanding collection of histology images for all of the major tissues and organs. Microscope slides are shown as a series of high-resolution photographs of the same area at successively increasing magnifications to provide a sense of scale and proportion. This is exactly the way students examine specimens through an actual microscope. Each image is labeled with details a student should be able to recognize. Each chapter is prefaced with introductory text.

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