Xem 1-20 trên 129 kết quả Organic disorders
  • Readable, well organized, and easy to use, this outstanding encyclopedia signifies a timely and major advance in providing in-depth and comprehensive coverage of medical genetics for the lay reader. The two volumes include nearly 400 substantive entries on genetic diseases and conditions as well as information on basic genetics concepts such as DNA, chromosomes, genetic testing, and pedigree analysis and construction (genetic family history).

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  • Harrison's Internal Medicine Chapter 52. Approach to the Patient with a Skin Disorder APPROACH TO THE PATIENT WITH A SKIN DISORDER: INTRODUCTION The challenge of examining the skin lies in distinguishing normal from abnormal, significant findings from trivial ones, and in integrating pertinent signs and symptoms into an appropriate differential diagnosis. The fact that the largest organ in the body is visible is both an advantage and a disadvantage to those who examine it.

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  • Senescence is a biological process that causes a progressive deterioration of structure and function of all organs chronologically. Recent studies have revealed the detailed molecular mechanisms of senescence using cell culture system and experimental organisms. It is thought that senescence is a potential cause for the development of various age-related disorders such as cancer, cardiovascular and neurodegenerative disorders.

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  • Ear anatomy. A. Drawing of modified coronal section through external ear and temporal bone, with structures of the middle and inner ear demonstrated. B. High-resolution view of inner ear. Stereocilia of the hair cells of the organ of Corti, which rests on the basilar membrane, are in contact with the tectorial membrane and are deformed by the traveling wave. A point of maximal displacement of the basilar membrane is determined by the frequency of the stimulating tone. High-frequency tones cause maximal displacement of the basilar membrane near the base of the cochlea.

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  • According to the World Health Organization, disorders of the nervous system—mental, neurological, and substance use disorders— produce substantial disease burden in the developing world. The longstanding focus on infectious disease has obscured their high prevalence and toll on societies, but these disorders, in aggregate, are significant causes of disability in adults and impede human capital formation by their effects on children. Caring for these patients poses a formidable challenge for individuals, families, governments, and societies around the world.

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  • Circadian Rhythm Sleep Disorders A subset of patients presenting with either insomnia or hypersomnia may have a disorder of sleep timing rather than sleep generation. Disorders of sleep timing can be either organic (i.e., due to an intrinsic defect in the circadian pacemaker or its input from entraining stimuli) or environmental (i.e., due to a disruption of exposure to entraining stimuli from the environment). Regardless of etiology, the symptoms reflect the influence of the underlying circadian pacemaker on sleep-wake function.

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  • Evoked Responses Electrocochleography measures the earliest evoked potentials generated in the cochlea and the auditory nerve. Receptor potentials recorded include the cochlear microphonic, generated by the outer hair cells of the organ of Corti, and the summating potential, generated by the inner hair cells in response to sound. The whole nerve action potential representing the composite firing of the firstorder neurons can also be recorded during electrocochleography.

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  • Harrison's Internal Medicine Chapter 51. Menstrual Disorders and Pelvic Pain Menstrual Disorders and Pelvic Pain: Introduction Menstrual dysfunction can signal an underlying abnormality that may have long-term health consequences. Although frequent or prolonged bleeding usually prompts a woman to seek medical attention, infrequent or absent bleeding may seem less troubling, and the patient may not bring it to the attention of the physician. Thus, a focused menstrual history is a critical part of every female patient encounter.

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  • The past several decades have seen dramatic advances in understanding the etiopathogenesis of glomerulonephritis. The science of renal disease has progressed steadily from a discipline focused largely on whole organ physiology, through successive eras of cell and molecular biology, several omics (proteomics, genomics) and now into molecular mapping and personalized medicine.

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  • Impurities in the purge gas, organic compounds outgassing from the plumbing ahead of the trap, and solvent vapors in the laboratory account for the majority of contamination problems. The analytical system must be demonstrated to be free from contamination under the conditions of the analysis by running laboratory reagent blanks as described in Section 8.1.3. The use of non-Teflon plastic tubing, non-Teflon thread sealants, or flow controllers with rubber components in the purge and trap system should be avoided....

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  • EPA Region 9 has developed technical guidelines to help ensure that sampling and analyzing for Volatile Organic Compounds (VOCs) in soil and solid matrices are conducted in a manner that achieves accurate, technically defensible data. Region 9’s guidelines, which are intended to apply whenever VOC sampling in and analysis of soil and solid matrices are conducted, are consistent with United States Environmental Protection Agency (USEPA) Office of Solid Waste test methods.

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  • In ancient Greece, people would journey to an oracle, or fortune teller, to discover what the future held. The oracle would kill an animal, perhaps a goat or a sheep, to examine the creature’s liver. A dark red liver that was smooth was a good sign. A pale liver that was bumpy foretold bad times ahead. The liver has long been linked to human courage and strength. The earliest doctors thought that the liver was one of the three main organs of the body. The others were the heart and the brain. Around a.d. 200, the famous Roman doctor Galen declared the liver to be the most important human...

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  • Microdeletion Syndromes The term contiguous gene syndrome refers to genetic disorders that mimic a combination of single-gene disorders. They result from the deletion of a small number of tightly clustered genes. Because some are too small to be detected cytogenetically, they are termed microdeletions. The application of molecular techniques has led to the identification of at least 18 of these microdeletion syndromes (Table 63-4). Some of the more common ones include the Wilms' tumor–aniridia complex (WAGR), Miller Dieker syndrome (MDS), and velocardiofacial (VCF) syndrome.

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  • The central mechanism of DIC is the uncontrolled generation of thrombin by exposure of the blood to pathologic levels of tissue factor (Fig. 110-3). Simultaneous suppression of physiologic anticoagulant mechanisms and abnormal fibrinolysis further accelerate the process. Together these abnormalities contribute to systemic fibrin deposition in small and mid-sized vessels. The duration and intensity of the fibrin deposition can compromise the blood supply of many organs, especially the lung, kidney, liver, and brain, with consequent organ failure.

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  • Some organic pest management strategies include using crop rotations that disrupt the pest life cycle, improving soil quality, practicing good sanitation, using optimum planting densities, timing planting and transplanting operations to avoid high pest populations, employing biological control, and growing resistant varieties. Approved pesticides that have been listed in the grower’s OSP can be used in organic production, but should be used as judiciously and as specific to the pest organism as possible.

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  • In this paper, we extend the Nagel-Schreckenberg (NaSch) model by introducing disordered acceleration and deceleration terms. The disorder leads to segregated states where the flow is constant at intermediate densities for high values of breaking probability p. Within the model we present a density wave behavior appears below a critical value of p. Such result was found in car following models with an optimal velocity. The behavior of the gap distribution shows that the traffic exhibits a self organized criticality for high values of p and random deceleration.

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  • Tham khảo sách 'diseases and disorders chronic: fatigue syndrome', 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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  • A Public Health Perspective of Women’s Mental Health examines major issues in the organization, financing, and provision of women’s mental health services. It also presents an overview of the epidemiology of mental disorders across the lifespan of women, an in-depth discussion of selected mental and substance use disorders that particularly affect women, and includes an examination of emerging issues in women’s mental health.

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  • These seven volumes of Lecture Notes represent the most-likely-to-be-tested material on the current USMLE Step l exam. Please note that these are Lecture Notes, not review books. The Notes were designed to be accompanied by faculty lectures-live, on DVD, or on the web Reading these Notes without accessing th�_accompanying lectures is not an effective way to review for the USMLE.

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  • In an ideal world, marketing and sales create a shared go-to-market strategy that focuses on customers, not products. In this world, marketing creates demand with the right kinds of (profitable) prospects as well as promoting the brand, and sales has the insight and selling tools it needs to close those sales. This foundation of joint ownership and continuous information sharing is enabled by accessible and flexible technology.

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