Download or read book The Natural Abundance of Isotopes of Stable Elements written by J. R. White and published by . This book was released on 1947 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natural Abundance written by Ralph Waldo Emerson and published by Simon and Schuster. This book was released on 2011-03-29 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Ruth L. Miller interprets a few essential essays by Ralph Waldo Emerson that tell us how the world always responds to our thoughts, words, and actions, and what we can do to ensure that our life is truly joy-filled in all aspects. In clear, simple language, she gives us a direct sense of what Emerson felt, saw, and struggled to share with his fellow human beings. Emerson transcended the limitations of his day. Using common sense, a love of nature, and his own particular genius, he expressed a higher truth about who we are and how the world gives us exactly what we demand from it. Yet, perhaps because he was so popular, and because so much of what was popularized focused on the need to transcend materialism and reconnect with Nature, some of his core ideas were lost to later generations. They were there, buried in the long sentences and extended paragraphs of his often-overlooked essays—but were discovered only by the few who were willing to take the time and seek them out. These few became great teachers in their own right, the founders and leaders of institutions and movements that have changed history. Natural Abundance makes the hidden treasures of Emerson’s wisdom accessible to 21st century readers. Through it, this great man’s alignment of his heart’s knowing and his intellect’s understanding can lead all of us to a more abundantly fulfilling life, today.

Download or read book Natural Abundance Measurements on Potassium and Magnesium written by R. F. Hibbs and published by . This book was released on 1948 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biochemistry written by David E. Metzler and published by Academic Press. This book was released on 2001-03-23 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochemistry: The Chemical Reactions of Living Cells is a well-integrated, up-to-date reference for basic biochemistry, associated chemistry, and underlying biological phenomena. Biochemistry is a comprehensive account of the chemical basis of life, describing the amazingly complex structures of the compounds that make up cells, the forces that hold them together, and the chemical reactions that allow for recognition, signaling, and movement. This book contains information on the human body, its genome, and the action of muscles, eyes, and the brain. It also features: thousands of literature references that provide introduction to current research as well as historical background; twice the number of chapters of the first edition; and each chapter contains boxes of information on topics of general interest. -- Publisher description.

Download or read book Medicinal Natural Products written by Paul M. Dewick and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medicinal Natural Products: A Biosynthetic Approach, Third Edition, provides a comprehensive and balanced introduction to natural products from a biosynthetic perspective, focussing on the metabolic sequences leading to various classes of natural products. The book builds upon fundamental chemical principles and guides the reader through a wealth of diverse natural metabolites with particular emphasis on those used in medicine. There have been rapid advances in biosynthetic understanding over the past decade through enzymology, gene isolation and genetic engineering. Medicinal Natural Products has been extended and fully updated in this new edition to reflect and explain these developments and other advances in the field. It retains the user-friendly style and highly acclaimed features of previous editions: a comprehensive treatment of plant, microbial, and animal natural products in one volume extensive use of chemical schemes with annotated mechanistic explanations cross-referencing to emphasize links and similarities boxed topics giving further details of medicinal materials, covering sources, production methods, use as drugs, semi-synthetic derivatives and synthetic analogues, and modes of action Medicinal Natural Products: A Biosynthetic Approach, Third Edition, is an invaluable textbook for students of pharmacy, pharmacognosy, medicinal chemistry, biochemistry and natural products chemistry.

Download or read book Natural Product Chemistry written by T.I. Atta-Ur-Rahman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natural Heritage written by Peter Howard and published by Routledge. This book was released on 2013-10-18 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has become more and more accepted that nature conservation is not possible without taking into account human activities. Thus an integrated approach to both the natural and cultural heritage is being encouraged and developed. Gathering a number of distinguished authors with diverse backgrounds (from a religious leader to academics to conservation scientists), the book aims to investigate the relationship between human beings and nature, between nature and culture. Looking at nature as ‘heritage’ of the human race is a recognition both of the tremendous impacts (both positive and negative) that human activities have had on the natural environment, as well as the acceptance of human responsibility for managing our planet in a sustainable and sensitive manner. The texts included examine this interface between human beings and nature in specific places (from the Everglades in Florida and Mont Saint Micelle in Atlantic France, to the UK, Europe and the Mediterranean), as well as on a theoretical basis, and in the context of the international biodiversity conventions.

Download or read book Pliny the Elder s Natural History written by Trevor Murphy and published by OUP Oxford. This book was released on 2004-03-11 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most important surviving encyclopedia from the ancient world, Pliny the Elder's Natural History is unparalleled as a guide to the cultural meanings of everyday things in first-century Rome. As part of a new direction in classical scholarship, Trevor Murphy reads the work not just for the information it contains, but to understand how and why Pliny collects and presents information as he does. Concentrating on the geographic and ethnographic information in Pliny, Murphy demonstrates the work's political importance. The selection and arrangement of the encyclopedia's material show that it is more than an instrument of reference: it is a monument to the power of Roman imperial society.

Download or read book Bioactive Natural Products written by Steven M. Colegate and published by CRC Press. This book was released on 2007-12-14 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following the successful format of the original, this new edition presents applications of the most recent techniques for the detection, isolation, and structural determination of bioactive natural products. It features new case studies and illustrations that demonstrate applications of techniques covered in the book. Complementing as much as replacing the first edition, most of the contributors are new. The text includes updates on chemical extraction, and NMR-based structure determination, and new contributions on liquid chromatography linked with mass and NMR spectroscopy, dereplication approaches, assessment of source material for natural products and novel bioassay development.

Download or read book Isotope Dilution Mass Spectrometry written by Jose Alonso and published by Royal Society of Chemistry. This book was released on 2019-03-22 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Isotope Dilution Mass Spectrometry (IDMS) has become an essential tool in research laboratories and is increasingly used in routine analysis labs (including environmental, food safety and clinical applications). This is the first textbook to present a comprehensive and instructive view of the theory and applications of this growing technique. The main objective of this book is to cover the theory and applications of Isotope Dilution in Analytical Chemistry. The scope is comprehensive to include elemental analysis, speciation analysis, organic analysis and biochemical and clinical analysis together with applications in metabolism studies and traceability of goods. Until now there have been no books published with the same general scope (only book chapters on particular applications). This is a textbook focused at post-graduate level covering the basic knowledge required for doctoral studies in this field. Isotope Dilution Mass Spectrometry will also outline practical applications of interest for routine testing laboratories where isotope dilution procedures are implemented or can be implemented in the future. This unique book covers all the theoretical and practical aspects of Isotope Dilution Mass Spectrometry (IDMS). Due to the increasing application of IDMS in many research laboratories and the increasing implementation of IDMS methodologies in routine testing laboratories, scientists in industry and working in or affiliated to this area will this an invaluable source of information. Concerning the theoretical aspects, the authors present a uniform theoretical background which grows from previous developments in Organic, Speciation and Elemental analysis both in their own laboratory and in other laboratories around the world. This general approach will be simpler and will also include new emerging fields such as quantitative proteomics and metabolism studies.

Download or read book Soil and Environmental Chemistry written by William F. Bleam and published by Academic Press. This book was released on 2016-11-30 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil and Environmental Chemistry, Second Edition, presents key aspects of soil chemistry in environmental science, including dose responses, risk characterization, and practical applications of calculations using spreadsheets. The book offers a holistic, practical approach to the application of environmental chemistry to soil science and is designed to equip the reader with the chemistry knowledge and problem-solving skills necessary to validate and interpret data. This updated edition features significantly revised chapters, averaging almost a 50% revision overall, including some reordering of chapters. All new problem sets and solutions are found at the end of each chapter, and linked to a companion site that reflects advances in the field, including expanded coverage of such topics as sample collection, soil moisture, soil carbon cycle models, water chemistry simulation, alkalinity, and redox reactions. There is also additional pedagogy, including key term and real-world scenarios. This book is a must-have reference for researchers and practitioners in environmental and soil sciences, as well as intermediate and advanced students in soil science and/or environmental chemistry. - Includes additional pedagogy, such as key terms and real-world scenarios - Supplemented by over 100 spreadsheets to migrate readers from calculator-based to spreadsheet-based problem-solving that are directly linked from the text - Includes example problems and solutions to enhance understanding - Significantly revised chapters link to a companion site that reflects advances in the field, including expanded coverage of such topics as sample collection, soil moisture, soil carbon cycle models, water chemistry simulation, alkalinity, and redox reactions

Download or read book Soil Nitrogen Uses and Environmental Impacts written by Rattan Lal and published by CRC Press. This book was released on 2018-03-15 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen (N) is potentially one of the most complex elements on the Earth. It is necessary for all biological activity, but creates negative impacts on water and air quality. There is a balancing act between deficiency and surplus and the forms of N available further complicate our understanding of the dynamics. Biological fixation provides some plants with N supply while others are totally dependent upon N being available in the soil profile for the roots to extract. Nevertheless, the demand for N will increase because the human population with its increasing growth requires more protein and thus more N. Understanding the global N cycle is imperative to meeting current and future nitrogen demands while decreasing environmental impacts. This book discusses availability, production, and recycling of N in air, water, plants, and soils. It features information on N impacts to soil and water quality, management of N in agroecosystems, and techniques to maximize the use efficiency while minimizing the risks of leakage of reactive N into the environment. This volume in the Advances in Soil Science series is specifically devoted to availability, production, and recycling of N with impact on climate change and water quality, and management of N in agroecosystems in the context of maximizing the use efficiency and minimizing the risks of leakage of reactive N (NO-3, N¬2O) into the environment.

Download or read book Natural Product Biosynthesis by Microorganisms and Plants Part B written by and published by Academic Press. This book was released on 2012-10-01 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new volume of Methods in Enzymology continues the legacy of this premier serial by containing quality chapters authored by leaders in the field. The second of 3 volumes covering Natural product biosynthesis by microorganisms and plants. - This new volume continues the legacy of this premier serial - Contains quality chapters authored by leaders in the field - The second of 3 volumes it has chapters on such topics as biological chlorination, bromination and iodination, and phylogenetic approaches to natural product structure prediction

Download or read book Modern NMR Approaches to the Structure Elucidation of Natural Products written by Antony Williams and published by Royal Society of Chemistry. This book was released on 2015-09-24 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strychnine’s poisonous nature was known in 16th century Europe, and the alkaloid was isolated in pure form for the first time in 1818. Then began a more than century-long quest to unravel the structure of strychnine that led to two Nobel prizes, clearly without the assistance of the modern spectroscopic methods to which we now have access. In his 1963 report of the synthesis, Woodward said, "The tangled skein of atoms which constitutes its molecule provided a fascinating structural problem that was pursued intensively during the century just past, and was solved finally only within the last decade." The structure elucidation of complex natural products is facilitated today by access to modern instrumentation and experimental techniques. Using a modern 600 MHz NMR spectrometer equipped with a 1.7 mm cryogenic probe and a 1 mg sample, it is now possible to acquire a comprehensive suite of 2D NMR spectra that rigorously characterizes the complex structure of strychnine in a scant 24 hours. When the 2D NMR data are combined with Computer-Assisted Structure Elucidation methods, the structure can be solved in mere seconds. It is against this historical backdrop that these two volumes regarding the Structure Elucidation of Natural Products by NMR is set. Volume 1 discusses contemporary NMR approaches including optimized and future hardware and experimental approaches to obtain both the highest quality and most appropriate spectral data for analysis. Volume 2 considers data processing and algorithmic based analyses tailored to natural product structure elucidation and reviews the application of NMR to the analysis of a series of different natural product families including marine natural products, terpenes, steroids, and carbohydrates. These books, bringing together acknowledged experts, uniquely focus on the combination of experimental approaches and modern hardware and software applied to the structure elucidation of natural products. The volumes will be an essential resource for NMR spectroscopists, natural product chemists and industrial researchers working on natural product analysis or the characterization of impurities and degradation products of pharmaceuticals that can be scarce as natural product samples.

Download or read book Encyclopedia of Spectroscopy and Spectrometry written by and published by Academic Press. This book was released on 2016-09-22 with total page 3716 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition of the Encyclopedia of Spectroscopy and Spectrometry, Three Volume Set provides authoritative and comprehensive coverage of all aspects of spectroscopy and closely related subjects that use the same fundamental principles, including mass spectrometry, imaging techniques and applications. It includes the history, theoretical background, details of instrumentation and technology, and current applications of the key areas of spectroscopy. The new edition will include over 80 new articles across the field. These will complement those from the previous edition, which have been brought up-to-date to reflect the latest trends in the field. Coverage in the third edition includes: Atomic spectroscopy Electronic spectroscopy Fundamentals in spectroscopy High-Energy spectroscopy Magnetic resonance Mass spectrometry Spatially-resolved spectroscopic analysis Vibrational, rotational and Raman spectroscopies The new edition is aimed at professional scientists seeking to familiarize themselves with particular topics quickly and easily. This major reference work continues to be clear and accessible and focus on the fundamental principles, techniques and applications of spectroscopy and spectrometry. Incorporates more than 150 color figures, 5,000 references, and 300 articles for a thorough examination of the field Highlights new research and promotes innovation in applied areas ranging from food science and forensics to biomedicine and health Presents a one-stop resource for quick access to answers and an in-depth examination of topics in the spectroscopy and spectrometry arenas

Download or read book Nuclear Magnetic Resonance Spectroscopy written by Joseph B. Lambert and published by John Wiley & Sons. This book was released on 2019-01-04 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combines clear and concise discussions of key NMR concepts with succinct and illustrative examples Designed to cover a full course in Nuclear Magnetic Resonance (NMR) Spectroscopy, this text offers complete coverage of classic (one-dimensional) NMR as well as up-to-date coverage of two-dimensional NMR and other modern methods. It contains practical advice, theory, illustrated applications, and classroom-tested problems; looks at such important ideas as relaxation, NOEs, phase cycling, and processing parameters; and provides brief, yet fully comprehensible, examples. It also uniquely lists all of the general parameters for many experiments including mixing times, number of scans, relaxation times, and more. Nuclear Magnetic Resonance Spectroscopy: An Introduction to Principles, Applications, and Experimental Methods, 2nd Edition begins by introducing readers to NMR spectroscopy - an analytical technique used in modern chemistry, biochemistry, and biology that allows identification and characterization of organic, and some inorganic, compounds. It offers chapters covering: Experimental Methods; The Chemical Shift; The Coupling Constant; Further Topics in One-Dimensional NMR Spectroscopy; Two-Dimensional NMR Spectroscopy; Advanced Experimental Methods; and Structural Elucidation. Features classical analysis of chemical shifts and coupling constants for both protons and other nuclei, as well as modern multi‐pulse and multi-dimensional methods Contains experimental procedures and practical advice relative to the execution of NMR experiments Includes a chapter-long, worked-out problem that illustrates the application of nearly all current methods Offers appendices containing the theoretical basis of NMR, including the most modern approach that uses product operators and coherence-level diagrams By offering a balance between volumes aimed at NMR specialists and the structure-determination-only books that focus on synthetic organic chemists, Nuclear Magnetic Resonance Spectroscopy: An Introduction to Principles, Applications, and Experimental Methods, 2nd Edition is an excellent text for students and post-graduate students working in analytical and bio-sciences, as well as scientists who use NMR spectroscopy as a primary tool in their work.

Download or read book Radiation Physics for Medical Physicists written by Ervin B. Podgorsak and published by Springer. This book was released on 2016-11-03 with total page 955 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook summarizes the basic knowledge of atomic, nuclear, and radiation physics that professionals working in medical physics and biomedical engineering need for efficient and safe use of ionizing radiation in medicine. Concentrating on the underlying principles of radiation physics, the textbook covers the prerequisite knowledge for medical physics courses on the graduate and post-graduate levels in radiotherapy physics, radiation dosimetry, imaging physics, and health physics, thus providing the link between elementary undergraduate physics and the intricacies of four medical physics specialties: diagnostic radiology physics, nuclear medicine physics, radiation oncology physics, and health physics. To recognize the importance of radiation dosimetry to medical physics three new chapters have been added to the 14 chapters of the previous edition. Chapter 15 provides a general introduction to radiation dosimetry. Chapter 16 deals with absolute radiation dosimetry systems that establish absorbed dose or some other dose related quantity directly from the signal measured by the dosimeter. Three absolute dosimetry techniques are known and described in detail: (i) calorimetric; (ii) chemical (Fricke), and (iii) ionometric. Chapter 17 deals with relative radiation dosimetry systems that rely on a previous dosimeter calibration in a known radiation field. Many relative radiation dosimetry systems have been developed to date and four most important categories used routinely in medicine and radiation protection are described in this chapter: (i) Ionometric dosimetry; (ii) Luminescence dosimetry; (iii) Semiconductor dosimetry; and (iv) Film dosimetry. The book is intended as a textbook for a radiation physics course in academic medical physics graduate programs as well as a reference book for candidates preparing for certification examinations in medical physics sub-specialties. It may also be of interest to many professionals, not only physicists, who in their daily occupations deal with various aspects of medical physics or radiation physics and have a need or desire to improve their understanding of radiation physics.