Disorders of the nervous system

Xem 1-20 trên 32 kết quả Disorders of the nervous system
  • This volume descibes, in up-to-date terminology and authoritative interpretation, the field of neurolinguistics, the science concerned with the neural mechanisms underlying the comprehension, production and abstract knowledge of spoken, signed or written language.

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  • lasso estimates can be obtained at the same computational cost as that of an ordinary least squares estimation Hastie et al. (òýýÀ). Further, the lasso estimator remains numerically feasible for dimensions m that are much higher than the sample size n. Zou and Hastie (òýý ) introduced a hybrid PLS regression with the so called elastic net penalty dened as "Ppj =Ô(ò ( j + Ô −)SjS). Here the penalty function is a linear combination of the ridge regression penalty function and lasso penalty function. A dišerent type of PLS, called garotte is due to Breiman (ÔÀÀç).

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  • It has long been noted anecdotally that affect, psychological state and neurologic state have influences on inflammatory skin diseases. Disorders such as psoriasis, atopic dermatitis, acne and rosacea, among many others, are reported to become exacerbated by stress. Furthermore, it is widely believed that stress alters cutaneous immunity. However, mechanisms responsible for these effects have remained incompletely understood. Scientific evidence for an influence of the nervous system on immune and inflammatory processes in the skin has been developed only relatively recently.

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  • This book is intended for otologists, audiologists, neurologists and researchers in the field of hearing. The book will also be of interest to psychologists and psychiatrists who treat patients with tinnitus and other hyperactive auditory disorders. The book provides the basis for a broad understanding of the anatomy and function of the ear and the auditory nervous system, and it discusses the cause and treatment of hearing disorders.

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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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  • This book is the second in the series “Nutrition, Brain and Behavior.” The purpose of this series is to provide a forum whereby basic and clinical scientists can share their knowledge and perspectives regarding the role of nutrition in brain function and behavior. The breadth and diversity of the topics covered in this book make it of great interest to specialists working on coffee/caffeine/tea/chocolate research, to nutritionists and physicians, and to anyone interested in obtaining objective information on the consequences of the consumption of coffee, tea, and chocolate on the brain.

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  • Brain morphology is in constant change from the very beginning of the neurodevelopment in human beings. The characterization of the brain morphology and its biological implications on a specific subject is a complex task which requires efficient computational approaches. Radiology has traditionally assessed the main brain changes in different alterations from a macroscopic point of view, thus, not considering subtle changes as a results of neuronal plasticity.

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  • Hirschsprung’s disease is one of the most important and most fascinating diseases in paediatric surgery. Our understanding of Hirschsprung’s disease is developing rapidly, not only in relation to its pathophysiology and the development of new surgical techniques, but especially in relation to new genetic findings.

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  • The ability to walk safely, easily, and in an aesthetically pleasing manner is a skill learned early and highly prized. Although it is typically taken for granted, gait is key to mobility and functional independence and at the core of our ability to carry out many activities of daily living. In older adults and patients with neurological deficits, ease and safety in walking may become compromised, and gait is often viewed as abnormal, i.e., as a disorder. While not an inevitable part of aging, gait disorders are common among older adults and in patients with neurological disease.

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  • Chapter 49 introduce to nervous systems. After completing this unit, you should be able to compare and contrast the nervous systems of: hydra, sea star, planarian, nematode, clam, squid, and vertebrate. Distinguish between the following pairs of terms: central nervous system, peripheral nervous system; white matter, gray matter; bipolar disorder and major depression. List the types of glia and their functions, compare the three divisions of the autonomic nervous system.

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  • Drugs that act upon the central nervous system (CNS) influence the lives of everyone, every day. These agents are invaluable therapeutically because they can produce specific physiological and psychological effects. Without general anesthetics, modern surgery would be impossible. Drugs that affect the CNS can selectively relieve pain, reduce fever, suppress disordered movement, induce sleep or arousal, reduce the desire to eat, or allay the tendency to vomit. Selectively acting drugs can be used to treat anxiety, mania, depression, or schizophrenia and do so without altering consciousness....

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  • A two-volume set designed for allied health students, patients, and the general public. The collection of alphabetically arranged entries covers rare and well-known neurological disorders, related medications and drug classes, patient and caregiver support, as well as background articles on the brain and nervous system anatomy"--

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  • While history and examination will always remain the foundation of neurolog- ical diagnosis, MRI and CT have now become the most important diagnostic tests used by neurologists and neurosurgeons. These tests are critical not only for confirming clinical diagnosis, but in many cases will give additional infor- mation absolutely essential to patient care. Modern clinical diagnosis and treat- ment of central nervous system disorders relies heavily upon neuroimaging. In some cases, the optimal management of clinical problems affecting patients with brain tumors, strokes, etc.

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  • The cause of macroglobulinemia is unknown. The disease is similar to myeloma in being slightly more common in men and occurring with increased incidence with age (median 64 years). There have been reports that the IgM in some patients with macroglobulinemia may have specificity for myelin-associated glycoprotein (MAG), a protein that has been associated with demyelinating disease of the peripheral nervous system and may be lost earlier and to a greater extent than the better known myelin basic protein in patients with multiple sclerosis.

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  • A two-volume set designed for allied health students, patients, and the general public. The collection of alphabetically arranged entries covers rare and well-known neurological disorders, related medications and drug classes, patient and caregiver support, as well as background articles on the brain and nervous system anatomy"--

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  • Harrison's Internal Medicine Chapter 15. Headache Headache: Introduction Headache is among the most common reasons that patients seek medical attention. Diagnosis and management is based on a careful clinical approach that is augmented by an understanding of the anatomy, physiology, and pharmacology of the nervous system pathways that mediate the various headache syndromes. General Principles A classification system developed by the International Headache Society characterizes headache as primary or secondary (Table 15-1).

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  • Harrison's Internal Medicine Chapter 97. Paraneoplastic Neurologic Syndromes Paraneoplastic Neurologic Syndromes: Introduction Paraneoplastic neurologic disorders (PNDs) are cancer-related syndromes that can affect any part of the nervous system (Table 97-1). They are remote effects of cancer, caused by mechanisms other than metastasis or by any of the complications of cancer such as coagulopathy, stroke, metabolic and nutritional conditions, infections, and side effects of cancer therapy. In 60% of patients the neurologic symptoms precede the cancer diagnosis.

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  • Paraneoplastic neurologic disorders (PNDs) are cancer-related syndromes that can affect any part of the nervous system (Table 97-1). They are remote effects of cancer, caused by mechanisms other than metastasis or by any of the complications of cancer such as coagulopathy, stroke, metabolic and nutritional conditions, infections, and side effects of cancer therapy. In 60% of patients the neurologic symptoms precede the cancer diagnosis. Overall, clinically disabling PNDs occur in 0.

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  • After studying this chapter you will be able to: Describe anatomy and physiology of nervous system, outline pathophysiological changes in nervous system that may alter the cerebral perfusion pressure, describe assessment of patient with nervous system disorder,...

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