Atlas of Steroid Structure PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Atlas of Steroid Structure PDF full book. Access full book title Atlas of Steroid Structure by William L. Duax. Download full books in PDF and EPUB format.
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: 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: Office of The Federal Register, Enhanced by IntraWEB, LLC
Publisher: IntraWEB, LLC and Claitor's Law Publishing
ISBN: 0160921171
Category : Law
Languages : en
Pages : 568
Get Book Here
Book Description
46 CFR Shipping
Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1060
Get Book Here
Book Description
Author: Abraham J Domb
Publisher: Royal Society of Chemistry
ISBN: 1788011880
Category : Technology & Engineering
Languages : en
Pages : 546
Get Book Here
Book Description
With the need to combat emerging infectious diseases, research around antimicrobial biomaterials and their applications is booming. This book provides the field with a much-needed fundamental overview of the science, addressing the chemistry of a broad range of biomaterial types, and their applications in the biomedical industry. Materials covered include polymers, from those with inherent antimicrobial activity to those that release antimicrobial agents, antimicrobial ceramics and inorganic compounds, such as metal based antimicrobial additives, and the developing field of biomimetic materials, are discussed. Surfaces, coatings and adhesives are covered, whilst the applications of these antimicrobial materials in biomedical applications, from catheters to orthopaedics, dentistry to ophthalmology, are explored. Edited by international leaders and with contributions from the best in the field, this book is the go-to resource for graduates and researchers in biomaterials science, biomedical engineering, chemical engineering, and materials and polymer chemistry.
Author: Monique Simmonds
Publisher: Academic Press
ISBN: 0124080642
Category : Technology & Engineering
Languages : en
Pages : 798
Get Book Here
Book Description
Nutritional Composition of Fruit Cultivars provides readers with the latest information on the health related properties of foods, making the documentation of the nutritive value of historical cultivars especially urgent, especially before they are lost and can't be effectively compared to modern cultivars. Because there is considerable diversity and a substantial body of the compositional studies directed towards commercial varieties, this information is useful for identifying traits and features that may be transposed from one variety to another. In addition, compositional and sensory features may also be used for commercialization and to characterize adulteration. Detailed characterization of cultivars can be used to identify "super-foods". Alternatively, unmasked historical cultivars may be the focus of reinvigorated commercial practices. Each chapter in this book has sections on the botanical aspects, the composition of traditional or ancient cultivars, the composition of modern cultivars, a focus on areas of research, the specialty of the communicating author of each chapter, and summary points. Presents the botanical aspects and composition of both traditional and modern plants, including in-depth insight into current research, and overall summary points for each fruit for consistent comparison and ease of reference Provides important information in the consideration of preservation, transference, or re-introduction of historical/traditional cultivars into current crop science Provides details on compositional and sensory parameters, from aroma and taste to micro- and macronutrients Includes data on nutraceuticals and novel components that have proven to impact on, or be important in, food quality, storage, processing, storage, and marketing
Author:
Publisher:
ISBN:
Category : Administrative law
Languages : en
Pages : 628
Get Book Here
Book Description
Author: United States. Environmental Protection Agency. Pesticides Regulation Division. Publications Branch
Publisher:
ISBN:
Category : Pesticides
Languages : en
Pages : 892
Get Book Here
Book Description
Author: Stephen Mudge
Publisher: Royal Society of Chemistry
ISBN: 0854041524
Category : Science
Languages : en
Pages : 175
Get Book Here
Book Description
The definitive reference source which considers fatty alcohols from their production, environmental behaviour and potential toxicity viewpoint and discusses their anthropogenic contributions.
Author:
Publisher:
ISBN:
Category : Supercritical fluid chromatography
Languages : en
Pages : 300
Get Book Here
Book Description
Author: United States. Patent and Trademark Office
Publisher:
ISBN:
Category : Patents
Languages : en
Pages : 1934
Get Book Here
Book Description
