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Книга "Elemente Der Weiten Hauptgruppe. Beryllium . Magnesium . Calcium . Strontium . Barium . Radium Und.

Книга "Probleme Der Kernphysik. Isotope ALS Forschungsmittel in Der Chemie Und.

The development and practical implementation of isotope methodologies in water resources assessment and management have been proved to be useful. Isotope techniques can be applied to a wide spectrum of hydrological problems related to both surface and groundwater resources as well as environmental studies in hydro-ecological systems. The main aim of this book is to provide a review of basic theoretical concepts and principles of isotope hydrology methodologies and their practical applications to the researchers, field engineers, managers and academicians involved in research, development, academic work and management in hydrology and water resources. This book contains the lecture notes by eminent Isotope Hydrologists of India. The lectures were delivered in a DST-SERC sponsored training workshop under IWIN programme on Isotope Hydrology during December 19-24, 2011. The Course Coordinator was Dr. Bhishm Kumar, Isotope Hydrologist, IAEA and Co-course Coordinator was Dr. R.D. Deshpande, Scientist, PRL, Ahmedabad. This book can be useful to the teaching faculty of various universities and academic institutions for incorporating the isotopes techniques into their PG course.

A guide for scientists, pediatricians and students involved in metabolic studies in pediatric research Addresses the availability of modern analytical techniques and how to apply these techniques in metabolic studies Covers the whole range of available mass spectrometric techniques used for metabolic studies including Stable Isotope Methodology Presents the relevance of mass spectrometry and stable isotope methodology in pediatric research covering applications in Nutrition, Obesity, Metabolic Disorders, and Kidney Disorders Focuses on the interactions between nutrients and the endogenous metabolism within the body and how these factors affect the health of a growing.

Edited by two very well-known and respected scientists in the field, this excellent practical guide is the first to cover the fundamentals and a wide range of applications, as well as showing readers how to efficiently use this increasingly important technique. From the contents: * The Isotopic Composition of the Elements * Single-Collector ICP-MS * Multi-Collector ICP-MS * Advances in Laser Ablation – Multi-Collector ICP-MS * Correction for Instrumental Mass Discrimination in Isotope Ratio Determination with Multi-Collector ICP-MS * Reference Materials in Isotopic Analysis * Quality Control in Isotope Ratio Applications * Determination of Trace Elements and Elemental Species Using Isotope Dilution ICP-MS * Geochronological Dating * Application of Multi-Collector ICP-MS to Isotopic Analysis in Cosmochemistry * Establishing the Basis for Using Stable Isotope Ratios of Metals as Paleoredox Proxies * Isotopes as Tracers of Elements Across the Geosphere-Biosphere Interface * Archaeometric Applications * Forensics Applications * Nuclear Applications * The Use of Stable Isotope Techniques for Studying Mineral and Trace Element Metabolism in Humans * Isotopic Analysis via Multi-Collector ICP-MS in Elemental Speciation A must-have for newcomers as well as established scientists seeking an overview of isotopic analysis via.

To date, there have been a considerable number of reports and investigations regarding accounts of stable isotopic fractionations and variation of stable isotope ratios. These descriptions depend only on biological activities, a little bit of differences of kinetic ratios of chemical reactions and a little differences of physical development. Although the relationship between the phenomena of stable isotopic fractionations or variation of stable isotope ratios and electric charge or electric field or electromagnetic forces has never been considered. Furthermore the relationship between the phenomena of variation of stable isotope ratios and cosmic-ray bombardment (spallation effect) also has never been considered. The object of this investigation is to discover the reason for variations in isotopic ratios in the environment to adapt the previous studies as follows. [ A ] Neutron bombardment from cosmic radiation (spallation effect) [ B ] Oddo-Harkins Rule [ C ] All kinds of isotopes have specific electrical potential [ D ] Previous study of Production of 7Be by nuclear spallation.

Monochlorobenzene (MCB) and tetrachloroethylene (PCE) are persistent groundwater contaminants worldwide. In this study, a pilot treatment facility - a horizontal subsurface flow constructed wetland with an open water compartment was established in Bitterfeld, Germany, and it was supplied with contaminated groundwater pumped from local aquifer. The degradation of MCB and PCE was measured and the relevant parameters were analyzed. The concentration of the organic contaminants was determined with GC/FID system, and stable isotope fractionation technique was used for the assessment of in-situ biodegradation of MCB and PCE. The results showed the effective removal of MCB and PCE in planted bed, especially in upper layer, and the isotope fraction analysis suggested that MCB and PCE may have different pathways that dominant the.

This first book to discuss both separation chemistry and mass spectrometry for mineral and rock analysis compares the two frequently used techniques, analyzing both their scope and limitations by way of numerous practical examples. The excellent and highly experienced author adopts a comprehensive and systematic approach, reviewing all the steps involved in an analytical workflow. In addition to thermal ionization mass spectrometry (TIMS), he also discusses applications of ICP-MS. Furthermore, alongside detailed protocols on sample preparation and mass spectrometric measurements, numerous practical hints are given. A must-have handy guide for all isotope geochemists and anyone involved in isotope.

Книга "Elemente Der Achten Hauptgruppe. Edelgase: Helium . Neon . Argon . Krypton . Xenon . Radon Und.

The number-one guide, internationally, to all aspects of forensic isotope analysis, thoroughly updated and revised and featuring many new case studies This edition of the internationally acclaimed guide to forensic stable isotope analysis uses real-world examples to bridge discussions of the basic science, instrumentation and analytical techniques underlying forensic isotope profiling and its various technical applications. Case studies describe an array of applications, many of which were developed by the author himself. They include cases in which isotope profiling was used in murder, and drugs-related crime investigations, as well as for pharmaceutical and food authenticity control studies. Updated with coverage of exciting advances occurring in the field since the publication of the 1st edition, this 2nd edition explores innovative new techniques and applications in forensic isotope profiling, as well as key findings from original research. More than a simple update, though, this edition has been significantly revised in order to address serious problems that can arise from non-comparable and unfit-for-purpose stable isotope data. To that end, Part II has been virtually rewritten with greater emphasis now being placed on important quality control issues in stable isotope analysis in general and forensic stable isotope analysis in particular. Written in a highly accessible style that will appeal to practitioners, researchers and students alike Illustrates the many strengths and potential pitfalls of forensic stable isotope analysis Uses recent case examples to bridge underlying principles with technical applications Presents hands-on applications that let experienced researchers and forensic practitioners match problems with success stories Includes new chapters devoted to aspects of quality control and quality assurance, including scale normalisation, the identical treatment principle, hydrogen exchange and accreditation Stable Isotope Forensics, 2nd Edition is an important professional resource for forensic scientists, law enforcement officials, public prosecutors, defence attorneys, forensic anthropologists and others for whom isotope profiling has become an indispensable tool of the trade. It is also an excellent introduction to the field for senior undergraduate and graduate forensic science students. «All students of forensic criminology, and all law enforcement officers responsible for the investigation of serious crime , will want to study this book. Wolfram highlights the value, and future potential, of Stable Isotope Forensics as an emerging powerful tool in the investigation of crime.» —Roy McComb, Deputy Director, Specialist Investigations, National Crime Agency (NCA), UK “A single author text in these days is rare and the value of this book lies in the dedication and experience of the author which is evident in the clarity of prose, the honest illustration of evidence and the realistic practical application of the subject – it makes this a text of genuine scientific value.” – Prof Dame Sue Black, PhD, DBE, OBE, FRSE, Leverhulme Research Centre for Forensic Science, University of Dundee,.

In this study, a new method was developed based on aqueous phenylation, purge-and-trap preconcentration, gas chromatography (GC) separation, and detection by atomic fluorescence spectrometry (AFS) or inductively coupled plasma mass spectrometry (ICPMS). Using the developed method, both monomethylmercury and monoethylmercury were detected in a number of soil and sediment samples collected from the Florida Everglades. The identity of monoethylmercury was verified by purge-and-trap-GC/MS analysis. The possibility of analytical artifact was excluded by using stable isotope tracer technique in combination with ICPMS detection. Soil incubation and sawgrass culture experiments using stable isotope tracers revealed that monomethylmercury was mainly produced by microbial activities under anaerobic conditions. However, ethylation of Hg was not confirmed in those experiments. Further experiments revealed that trace levels of ethyllead species were able to transfer ethyl groups to Hg in both deionized water and freshwater matrixes, producing monoethylmercury. This might partially accounted for the occurrence of monoethylmercury in the Florida.

This book is a welcome introduction and reference for users and innovators in geochronology. It provides modern perspectives on the current state-of-the art in most of the principal areas of geochronology and thermochronology, while recognizing that they are changing at a fast pace. It emphasizes fundamentals and systematics, historical perspective, analytical methods, data interpretation, and some applications chosen from the literature. This book complements existing coverage by expanding on those parts of isotope geochemistry that are concerned with dates and rates and insights into Earth and planetary science that come from temporal perspectives. Geochronology and Thermochronology offers chapters covering: Foundations of Radioisotopic Dating; Analytical Methods; Interpretational Approaches: Making Sense of Data; Diffusion and Thermochronologic Interpretations; Rb-Sr, Sm-Nd, Lu-Hf; Re-Os and Pt-Os; U-Th-Pb Geochronology and Thermochronology; The K-Ar and 40Ar/39Ar Systems; Radiation-damage Methods of Geo- and Thermochronology; The (U-Th)/He System; Uranium-series Geochronology; Cosmogenic Nuclides; and Extinct Radionuclide Chronology. Offers a foundation for understanding each of the methods and for illuminating directions that will be important in the near future Presents the fundamentals, perspectives, and opportunities in modern geochronology in a way that inspires further innovation, creative technique development, and applications Provides references to rapidly evolving topics that will enable readers to pursue future developments Geochronology and Thermochronology is designed for graduate and upper-level undergraduate students with a solid background in mathematics, geochemistry, and.

The context for understanding global climate change today lies in the records of Earth’s past. This is demonstrated by decades of paleoclimate research by scientists in organizations such as the Integrated Ocean Drilling Program (IODP), the Antarctic Geological Drilling Program (ANDRILL), and many others. The purpose of this full colour textbook is to put key data and published case studies of past climate change at your fingertips, so that you can experience the nature of paleoclimate reconstruction. Using foundational geologic concepts, students explore a wide variety of topics, including: marine sediments, age determination, stable isotope paleoclimate proxies, Cenozoic climate change, climate cycles, polar climates, and abrupt warming and cooling events, students are invited to evaluate published scientific data, practice developing and testing hypotheses, and infer the broader implications of scientific results. It is our philosophy that addressing how we know is as important as addressing what we know about past climate change. Making climate change science accessible is the goal of this book. This book is intended for earth science students at a variety of levels studying paleoclimatology, oceanography, Quaternary science, or earth-system science. Additional resources for this book can be found at:.

Quantum cascade (QC) lasers have application in areas such as medical diagnostics and homeland security. Optical metamaterials have novel interactions with light and potential application for sub-wavelength imaging and optical cloaking. This work first explores new approaches to designing QC lasers. High performance QC lasers are described with a voltage defect of only 19 meV, resulting in record voltage efficiency. Lasers with ultra-strong coupling attain 50% wall-plug efficiency. The thermoelectric effect is measured for the first time within QC lasers, informing further performance enhancements. This work then describes two efforts to improve mid-IR metamaterials. Negative refraction bandwidth and dispersion properties are improved through the use of multiple-metamaterial stacks. QC gain regions are added to these metamaterials to reduce their absorption loss. Finally, QC lasers are developed for trace gas sensing of CO2 isotopes, and a techno-economic model is used to value improved CO2 isotope-based sequestration leakage monitoring. QC laser applications in non-invasive tissue measurements, inter-planetary sensors, C60 spectroscopy, and IR countermeasures are also.

An Indispensable Resource on Advanced Methods of Analysis of Human Skeletal and Dental Remains in Archaeological and Forensic Contexts Now in its third edition, Biological Anthropology of the Human Skeleton has become a key reference for bioarchaeologists, human osteologists, and paleopathologists throughout the world. It builds upon basic skills to provide the foundation for advanced scientific analyses of human skeletal remains in cultural, archaeological, and theoretical contexts. This new edition features updated coverage of topics including histomorphometry, dental morphology, stable isotope methods, and ancient DNA, as well as a number of new chapters on paleopathology. It also covers bioarchaeological ethics, taphonomy and the nature of archaeological assemblages, biomechanical analyses of archaeological human skeletons, and more. Fully updated and revised with new material written by leading researchers in the field Includes many case studies to demonstrate application of methods of analysis Offers valuable information on contexts, methods, applications, promises, and pitfalls Covering the latest advanced methods and techniques for analyzing skeletal and dental remains from archaeological discoveries, Biological Anthropology of the Human Skeleton is a trusted text for advanced undergraduates, graduate students, and professionals in human osteology, bioarchaeology, and.