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Author: William L. Duax
Publisher: Springer Science & Business Media
ISBN: 1475704267
Category : Science
Languages : en
Pages : 753
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Book Description
model. In general, the mean atomic positions and the geometrical parameters calculated from them are more accurate if the more sophisticated anisotropic model has been used for the thermal motion during structure refinement. Low temperature data collection also results in more accurately determined structures. By decreasing the temperature at which data is collected, the intensities and number of data observed is increased. Since hydrogen atoms have only a single electron, they scatter X-rays very weakly, and they can be observed experimentally only if the data are of good quality. Finally, in the absence of systematic errors in data collection or refinement, tae greater the number of observed data relative to the number of independent atoms, the better the atomic resolution will be. Table 1 is a summary of the information used in assessing the reliability of a structure. Neutron diffraction is the result of interaction of atomic nuclei with a neutron beam. The intensi ty of the diffracted beam is not proportional to atomic number. Hydrogen, deuterium, carbon, oxygen and nitrogen scatter neutrons with almost equal intensity. In addition, hydrogen and deuterium scatter out of phase so that they can be distinguished wita high precision. 20-Methyl-5-pregnene-3S,20-diol (PR104N) is the only steroid which has been the subject of a neutron diffraction study. The study was undertaken to examine the stereospecificity of Grignard addition using deuterated reagent. Data were collected at 123°K.
Author: William L. Duax
Publisher: Springer Science & Business Media
ISBN: 1475704267
Category : Science
Languages : en
Pages : 753
Get Book Here
Book Description
model. In general, the mean atomic positions and the geometrical parameters calculated from them are more accurate if the more sophisticated anisotropic model has been used for the thermal motion during structure refinement. Low temperature data collection also results in more accurately determined structures. By decreasing the temperature at which data is collected, the intensities and number of data observed is increased. Since hydrogen atoms have only a single electron, they scatter X-rays very weakly, and they can be observed experimentally only if the data are of good quality. Finally, in the absence of systematic errors in data collection or refinement, tae greater the number of observed data relative to the number of independent atoms, the better the atomic resolution will be. Table 1 is a summary of the information used in assessing the reliability of a structure. Neutron diffraction is the result of interaction of atomic nuclei with a neutron beam. The intensi ty of the diffracted beam is not proportional to atomic number. Hydrogen, deuterium, carbon, oxygen and nitrogen scatter neutrons with almost equal intensity. In addition, hydrogen and deuterium scatter out of phase so that they can be distinguished wita high precision. 20-Methyl-5-pregnene-3S,20-diol (PR104N) is the only steroid which has been the subject of a neutron diffraction study. The study was undertaken to examine the stereospecificity of Grignard addition using deuterated reagent. Data were collected at 123°K.
Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 2146
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Book Description
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1214
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Book Description
Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Index medicus (National Library of Medicine (U.S.))
Languages : en
Pages : 386
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Author: National Library of Medicine (U.S.). Medical Subject Headings Section
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 474
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Book Description
Author: Gerald Tesauro
Publisher: MIT Press
ISBN: 9780262201049
Category : Computers
Languages : en
Pages : 1180
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Book Description
November 28-December 1, 1994, Denver, Colorado NIPS is the longest running annual meeting devoted to Neural Information Processing Systems. Drawing on such disparate domains as neuroscience, cognitive science, computer science, statistics, mathematics, engineering, and theoretical physics, the papers collected in the proceedings of NIPS7 reflect the enduring scientific and practical merit of a broad-based, inclusive approach to neural information processing. The primary focus remains the study of a wide variety of learning algorithms and architectures, for both supervised and unsupervised learning. The 139 contributions are divided into eight parts: Cognitive Science, Neuroscience, Learning Theory, Algorithms and Architectures, Implementations, Speech and Signal Processing, Visual Processing, and Applications. Topics of special interest include the analysis of recurrent nets, connections to HMMs and the EM procedure, and reinforcement- learning algorithms and the relation to dynamic programming. On the theoretical front, progress is reported in the theory of generalization, regularization, combining multiple models, and active learning. Neuroscientific studies range from the large-scale systems such as visual cortex to single-cell electrotonic structure, and work in cognitive scientific is closely tied to underlying neural constraints. There are also many novel applications such as tokamak plasma control, Glove-Talk, and hand tracking, and a variety of hardware implementations, with particular focus on analog VLSI.
Author: Carol J. Buck
Publisher: Elsevier Health Sciences
ISBN: 0323567835
Category : Medical
Languages : en
Pages : 1712
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Book Description
Ideal for radiology residents and medical students, as well as anyone who reads or orders radiology imaging studies, this user-friendly reference covers the basics of how to approach, read, and interpret radiological images. Using concise, step-by-step explanations and an enjoyable writing style, expert radiologist Dr. Fred A Mettler, Jr., walks you through a sequential thought process for all common indications for radiologic studies and their interpretation. Featuring thorough updates from cover to cover, this resource covers the fundamental information you need to know, as well as recent advances in the field.
Author: Elsevier
Publisher: Elsevier Health Sciences
ISBN: 0323810845
Category : Medical
Languages : en
Pages : 1747
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Book Description
Selecting diagnosis codes is faster and easier with Buck's 2022 ICD-10-CM for Hospitals. Designed by coders for coders, this full-color manual includes all the ICD-10 codes that you need for today’s inpatient coding. As coders need extensive knowledge to code with ICD-10-CM — and to choose from the thousands of possible codes — this edition makes it easier with colorful anatomy plates (including Netter’s Anatomy illustrations) to help you understand anatomy and how it can affect your code choices. In addition, it comes with durable spiral binding, and includes a companion website with the latest coding updates.
Author: Martin Kohlmeier
Publisher: Elsevier
ISBN: 0080537898
Category : Medical
Languages : en
Pages : 841
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Book Description
Nutrient Metabolism defines the molecular fate of nutrients and other dietary compounds in humans, as well as outlining the molecular basis of processes supporting nutrition, such as chemical sensing and appetite control. It focuses on the presentation of nutritional biochemistry; and the reader is given a clear and specific perspective on the events that control utilization of dietary compounds. Slightly over 100 self-contained chapters cover all essential and important nutrients as well as many other dietary compounds with relevance for human health. An essential read for healthcare professionals and researchers in all areas of health and nutrition who want to access the wealth of nutrition knowledge available today in one single source.Key Features* Highly illustrated with relevant chemical structures and metabolic pathways* Foreword by Steven Zeisel, Editor-in-chief of the Journal of Nutritional Biochemistry* First comprehensive work on the subject
Author: William Fuller Brown
Publisher: Springer Science & Business Media
ISBN: 3642458416
Category : Science
Languages : en
Pages : 412
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Book Description
