Download or read book Exploration on Quantum Chemical Potential Energy Surfaces written by Koichi Ohno and published by Royal Society of Chemistry. This book was released on 2022-12-12 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written chemical formulas, such as C2H6O, can tell us the constituent atoms a molecule contains but they cannot differentiate between the possible geometrical arrangements (isomers) of these models. Yet the chemical properties of different isomers can vary hugely. Therefore, to understand the world of chemistry we need to ask what kind of isomers can be produced from a given atomic composition, how are isomers converted into each other, how do they decompose into smaller pieces, and how can they be made from smaller pieces? The answers to these questions will help us to discover new chemistry and new molecules. A potential energy surface (PES) describes a system, such as a molecule, based on geometrical parameters. The mathematical properties of the PES can be used to calculate probable isomer structures as well as how they are formed and how they might behave. Exploration on Quantum Chemical Potential Energy Surfaces focuses on the PES search based on quantum chemical calculations. It describes how to explore the chemical world on PES, discusses fundamental methods and specific techniques developed for efficient exploration on PES, and demonstrates several examples of the PES search for chemical structures and reaction routes.
Download or read book Chemical Reactions written by Jacqueline Barber and published by Great Explorations. This book was released on 1998 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ordinary sandwich bag becomes a safe laboratory as students mix chemicals that bubble, change color, and produce gas, heat, and odor. Students then experiment to determine what causes the heat in this chemical reaction.
Download or read book Knowledge Exploration in Life Science Informatics written by Jesús A. López and published by Springer. This book was released on 2005-01-27 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of the Springer Lecture Notes in Computer Science series contains the contributions presented at the International Symposium on Knowledge Exploration in Life Science Informatics (KELSI 2004) held in Milan, Italy, 25-26 November 2004. The two main objectives of the symposium were: • To explore the symbiosis between information and knowledge technologies and v- ious life science disciplines, such as biochemistry, biology, neuroscience, medical research, social sciences, and so on. • To investigate the synergy among different life science informatics areas, including cheminformatics,bioinformatics,neuroinformatics,medical informatics,systems - ology, socionics, and others. Modern life sciences investigate phenomena and systems at the level of molecules, cells, tissues, organisms, and populations. Typical areas of interest include natural e- lution, development,disease, behavior,cognition,and consciousness.This quest is g- eratinganoverwhelmingandfast-growingamountofdata,information,andknowledge, re?ecting living systems at different levels of organization. Future progress of the life sciences will depend on effective and ef?cient management, sharing, and exploitation of these resources by computational means.
Download or read book Exploration and Science written by Michael Sean Reidy and published by Bloomsbury Publishing USA. This book was released on 2006-12-27 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume explores the intricate, mutually dependent relationship between science and exploration—how each has repeatedly built on the discoveries of the other and, in the process, opened new frontiers. A simple question: Which came first, advances in navigation or successful voyages of discovery? A complicated answer: Both and neither. For more than four centuries, scientists and explorers have worked together—sometimes intentionally and sometimes not—in an ongoing, symbiotic partnership. When early explorers brought back exotic flora and fauna from newly discovered lands, scientists were able to challenge ancient authorities for the first time. As a result, scientists not only invented new navigational tools to encourage exploration, but also created a new approach to studying nature, in which observations were more important than reason and authority. The story of the relationship between science and exploration, analyzed here for the first time, is nothing less than the history of modern science and the expanding human universe.
Download or read book A Science Strategy for the Exploration of Europa written by Committee on Planetary and Lunar Exploration and published by National Academies Press. This book was released on 2000-01-05 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its discovery in 1610, Europa-one of Jupiter's four large moons-has been an object of interest to astronomers and planetary scientists. Much of this interest stems from observations made by NASA's Voyager and Galileo spacecraft and from Earth-based telescopes indicating that Europa's surface is quite young, with very little evidence of cratering, and made principally of water ice. More recently, theoretical models of the jovian system and Europa have suggested that tidal heating may have resulted in the existence of liquid water, and perhaps an ocean, beneath Europa's surface. NASA's ongoing Galileo mission has profoundly expanded our understanding of Europa and the dynamics of the jovian system, and may allow us to constrain theoretical models of Europa's subsurface structure. Meanwhile, since the time of the Voyagers, there has been a revolution in our understanding of the limits of life on Earth. Life has been detected thriving in environments previously thought to be untenable-around hydrothermal vent systems on the seafloor, deep underground in basaltic rocks, and within polar ice. Elsewhere in the solar system, including on Europa, environments thought to be compatible with life as we know it on Earth are now considered possible, or even probable. Spacecraft missions are being planned that may be capable of proving their existence. Against this background, the Space Studies Board charged its Committee on Planetary and Lunar Exploration (COMPLEX) to perform a comprehensive study to assess current knowledge about Europa, outline a strategy for future spacecraft missions to Europa, and identify opportunities for complementary Earth-based studies of Europa. (See the preface for a full statement of the charge.)
Download or read book Ecological Roles of Marine Natural Products written by Valerie Jean Paul and published by Comstock Publishing. This book was released on 1992 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report Of The British Association For The Advancement Of Science written by and published by . This book was released on 1874 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1967 Summer Study of Lunar Science and Exploration written by and published by . This book was released on 1967 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Future of lunar manned and unmanned exploration and Apollo applications program.
Download or read book Analytical Chemistry in the Exploration Mining and Processing of Materials written by A. Strasheim and published by Elsevier. This book was released on 2013-10-22 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical Chemistry in the Exploration, Mining and Processing of Materials is a collection of plenary lectures presented at the International Symposium on Analytical Chemistry in the Exploration, Mining, and Processing of Materials, held in Johannesburg, South Africa, on August 23-27, 1976. Contributors explore the applications of analytical chemistry in the exploration, mining, and processing of materials and cover topics ranging from the role of reference materials in analytical chemistry to analytical requirements in exploration geochemistry, along with activation analysis of ores and minerals. This book is comprised of 15 chapters and begins with a discussion on the analytical needs for primary coal covering three sets of parameters associated with chemical quality, physical nature and condition, and rank fundamental properties. The reader is then introduced to coal products (coke, tar, gas) and their analysis; analytical chemistry of the noble metals; use of chromatography in the analysis of inorganic materials; and developments in wavelength and energy dispersive spectrometry, Subsequent chapters deal with optical emission spectrochemical analysis; automated on-line analysis for controlling industrial processes; and atomic absorption spectroscopy and its applications. This monograph will be a useful resource for chemists, metallurgists, materials scientists, and mining engineers.
Download or read book Literature and Chemistry written by Margareth Hagen and published by Aarhus Universitetsforlag. This book was released on 2014-02-21 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Literature and Chemistry: Elective Affinities investigates literary and chemical encounters, from medieval alchemy to contemporary science fiction, in works of the likes of Dante, Goethe, Baudelaire and Dag Solstad as well as in literary writing of scientists such as Humphry Davy, Ludwig Boltzmann and Oliver Sachs. Sixteen authors break new ground in demonstrating chemistry's particular status as one of the sciences in which humanities should interest itself, the overlaps and reciprocities of the two fields, and - perhaps most importantly - chemistry's role in the production of narrative, metaphor, and literary form. The anthology makes the silent presence of chemistry perceptible, uncovering its historical and present appeal to material sensitivity, imagination, and creativity, as well as its call for philosophical and ethical concern, and for wonder.
Download or read book Report of the Meeting of the British Association for the Advancement of Science written by British Association for the Advancement of Science and published by . This book was released on 1874 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Kansas City Review of Science and Industry written by and published by . This book was released on 1884 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uranium geochemistry mineralogy geology exploration and resources written by B. de Vivo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: turning points that, in the course of a few years, have made this The uranium minerals that today are at the centre of worldwide metal an essential raw material. attention were unknown until 1780, when Wagsfort found a First, the destructive property of fission reactions made uranium a metal of fundamental strategic importance, increas pitchblende sample in 10hanngeorgenstadt. This discovery passed unnoticed, however, since Wags fort thought that it ing research in some nations, but the revolution came with the plan for the real possibility of utilizing chain reactions for contained a black species of a zinc mineral-hence the n':lme 'pitchblende' (= pitch-like blende). Seven years later, Klaproth, energy production in place of conventional fuels. while examining the mineral, noted that it contained an oxide Since that time a 'uranium race' has been in progress in many countries-often justified by the well-founded hope of of an unknown metal, which he called 'uranium' in honour of the planet Uranus, recently discovered by Herschel. Klaproth becoming self-sufficient with regard to energy, or at least of also believed that he had separated the metal, but, in fact, the paying off a part of the financial deficit due to increasing fuel imports.
Download or read book Exploration and Meaning Making in the Learning of Science written by Bernard Zubrowski and published by Springer Science & Business Media. This book was released on 2009-08-14 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mountaineers, Rock Climbers, and Science Educators Around the 1920s, rock climbing separated from mountaineering to become a separate sport. At that time European climbers developed new equipment and techniques, enabling them to ascend mountain faces and to climb rocks, which were considered unassailable up to that time. American climbers went further by expanding and improving on the equipment. They even developed a system of quantification where points were given for the degree of difficulty of an ascent. This system focused primarily on the pitch of the mountain, and it even calculated up to de- mals to give a high degree of quantification. Rock climbing became a technical system. Csikszentmihaly (1976) observed that the sole interest of rock climbers at that time was to climb the rock. Rock climbers were known to reach the top and not even glance around at the scenery. The focus was on reaching the top of the rock. In contrast, mountaineers saw the whole mountain as a single “unit of perc- tion. ” “The ascent (to them) is a gestalt including the aesthetic, historical, personal and physical sensations” (Csikszentmihaly, 1976, p. 486). This is an example of two contrasting approaches to the same kind of landscape and of two different groups of people. Interestingly, in the US, Europe, and Japan a large segment of the early rock climbers were young mathematicians and theoretical physicists, while the mountaineers were a more varied lot.
Download or read book Report of the Meeting of the British Association for the Advancement of Science written by British Association for the Advancement of Science. Meeting and published by . This book was released on 1903 with total page 1184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical Chemistry for the Life Sciences written by Peter Atkins and published by Macmillan. This book was released on 2011-01-30 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peter Atkins and Julio de Paula offer a fully integrated approach to the study of physical chemistry and biology.
Download or read book Progress in Medicinal Chemistry written by and published by Elsevier. This book was released on 2011-09-02 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Appropriate selection of biochemical targets is one of the most important drivers of cost effectiveness in the discovery of new medicines. Despite the many advances in genetics, genomics and systems biology, ‘validation’ of a target is not achieved until therapeutic efficacy is demonstrated by a drug candidate. Volume 46 of this series reviews the medicinal chemistry aimed at six diverse targets from which important new medicines are emerging: * HIV integrase (discovery of the first-in-class inhibitor drug raltegravir)* 11-beta-Hydroxysteroid dehydrogenase (new approach to glucocorticoid regulation)* Nicotinic a7 choline receptor (agonists and positive allosteric modulators). * Bradykinin receptor (new approach to pain therapy)* Histone deacetylase (new drugs for cancer)* 5-HT2c receptor modulators (various CNS indications) *Presents the latest research in the field of drug discovery *Publishes on an annual basis to bring you the most innovative updates in medicinal chemistry *Available as an online resource via ScienceDirect
