NATURES CHEMICALS THE NATURAL PRODUCTS THAT SHAPED OUR WORLD

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Nature S Chemicals

Author : Richard Firn
ISBN : 9780199566839
Genre : Science
File Size : 34.96 MB
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This is the first monograph to describe Natural Products (NPs) as a group in an evolutionary context. It synthesizes a widely dispersed literature and provides a general picture of natural products encompassing evolution, history, ecology, and environmental issues, along with some deeper theory relevant to biochemistry.
Category: Science

Nature S Chemicals

Author : Richard Firn
ISBN : 9780199566839
Genre : Science
File Size : 20.49 MB
Format : PDF, ePub
Download : 524
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This is the first monograph to describe Natural Products (NPs) as a group in an evolutionary context. It synthesizes a widely dispersed literature and provides a general picture of natural products encompassing evolution, history, ecology, and environmental issues, along with some deeper theory relevant to biochemistry.
Category: Science

War And Nature

Author : Edmund Russell
ISBN : 0521799376
Genre : History
File Size : 85.93 MB
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A social narrative documents the close ties between chemical weapons development and “peaceful†applications in insect warfare, discussing the role of chemists and chemistry in military history and the changing attitude of war departments toward chemists.
Category: History

Dinner With Darwin

Author : Jonathan Silvertown
ISBN : 9780226245393
Genre : Cooking
File Size : 87.20 MB
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What do eggs, flour, and milk have in common? They form the basis of crepes of course, but they also each have an evolutionary purpose. Eggs, seeds (from which flour is derived by grinding) and milk are each designed by evolution to nourish offspring. Everything we eat has an evolutionary history. Grocery shelves and restaurant menus are bounteous evidence of evolution at work, though the label on the poultry will not remind us of this with a Jurassic sell-by date, nor will the signs in the produce aisle betray the fact that corn has a 5,000 year history of artificial selection by pre-Colombian Americans. Any shopping list, each recipe, every menu and all ingredients can be used to create culinary and gastronomic magic, but can also each tell a story about natural selection, and its influence on our plates--and palates. Join in for multiple courses, for a tour of evolutionary gastronomy that helps us understand the shape of our diets, and the trajectories of the foods that have been central to them over centuries--from spirits to spices. This literary repast also looks at the science of our interaction with foods and cooking--the sights, the smells, the tastes. The menu has its eclectic components, just as any chef is entitled. But while it is not a comprehensive work which might risk gluttony, this is more than an amuse bouche, and will leave every reader hungry for more.
Category: Cooking

Redox Homeostasis Managers In Plants Under Environmental Stresses

Author : Nafees A. Khan
ISBN : 9782889198788
Genre :
File Size : 41.34 MB
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The production of cellular oxidants such as reactive oxygen species (ROS) is an inevitable con-sequence of redox cascades of aerobic metabolism in plants. This milieu is further aggravated by a myriad of adverse environmental conditions that plants, owing to their sessile life-style, have to cope with during their life cycle. Adverse conditions prevent plants reaching their full genetic potential in terms of growth and productivity mainly as a result of accelerated ROS generation-accrued redox imbalances and halted cellular metabolism. In order to sustain ROS-accrued consequences, plants tend to manage a fine homeostasis between the generation and antioxidants-mediated metabolisms of ROS and its reaction products. Well-known for their involvement in the regulation of several non-stress-related processes, redox related components such as proteinaceous thiol members such as thioredoxin, glutaredoxin, and peroxiredoxin proteins, and key soluble redox-compounds namely ascorbate (AsA) and glutathione (GSH) are also listed as efficient managers of cellular redox homeostasis in plants. The management of the cellular redox homeostasis is also contributed by electron carriers and energy metabolism mediators such as non-phosphorylated (NAD+) and the phosphorylated (NADP+) coenzyme forms and their redox couples DHA/AsA, GSSG/GSH, NAD+/NADH and NADP+/NADPH. Moreover, intracellular concentrations of these cellular redox homeostasis managers in plant cells fluctuate with the external environments and mediate dynamic signaling in pant stress responses. This research topic aims to exemplify new information on how redox homeostasis managers are modulated by environmental cues and what potential strategies are useful for improving cellular concentrations of major redox homeostasis managers. Additionally, it also aims to pro-vide readers detailed updates on specific topics, and to highlight so far unexplored aspects in the current context.
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Studies In Natural Products Chemistry

Author : Atta-ur-Rahman
ISBN : 9780444639363
Genre : Science
File Size : 20.64 MB
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Studies in Natural Products Chemistry, Volume 53, covers the synthesis, testing, and recording of the medicinal properties of natural products, providing cutting-edge accounts of the fascinating developments in the isolation, structure elucidation, synthesis, biosynthesis, and pharmacology of a diverse array of bioactive natural products. Natural products in the plant and animal kingdom offer a huge diversity of chemical structures that are the result of biosynthetic processes that have been modulated over the millennia through genetic effects. With the rapid developments in spectroscopic techniques and accompanying advances in high-throughput screening techniques, it has become possible to isolate and then determine the structures and biological activity of natural products rapidly, thus opening up exciting opportunities in the field of new drug development to the pharmaceutical industry that are discussed and highlighted in this series. Focuses on the chemistry of bioactive natural products Contains contributions by leading authorities in the field Presents sources of new pharmacophores
Category: Science

Using The Biological Literature

Author : Diane Schmidt
ISBN : 9781466558571
Genre : Language Arts & Disciplines
File Size : 22.61 MB
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The biological sciences cover a broad array of literature types, from younger fields like molecular biology with its reliance on recent journal articles, genomic databases, and protocol manuals to classic fields such as taxonomy with its scattered literature found in monographs and journals from the past three centuries. Using the Biological Literature: A Practical Guide, Fourth Edition is an annotated guide to selected resources in the biological sciences, presenting a wide-ranging list of important sources. This completely revised edition contains numerous new resources and descriptions of all entries including textbooks. The guide emphasizes current materials in the English language and includes retrospective references for historical perspective and to provide access to the taxonomic literature. It covers both print and electronic resources including monographs, journals, databases, indexes and abstracting tools, websites, and associations—providing users with listings of authoritative informational resources of both classical and recently published works. With chapters devoted to each of the main fields in the basic biological sciences, this book offers a guide to the best and most up-to-date resources in biology. It is appropriate for anyone interested in searching the biological literature, from undergraduate students to faculty, researchers, and librarians. The guide includes a supplementary website dedicated to keeping URLs of electronic and web-based resources up to date, a popular feature continued from the third edition.
Category: Language Arts & Disciplines

Synthetic Worlds

Author : Esther Leslie
ISBN : 9781861895547
Genre : Science
File Size : 81.89 MB
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This revealing study considers the remarkable alliance between chemistry and art from the late eighteenth century to the period immediately following the Second World War. Synthetic Worlds offers fascinating new insights into the place of the material object and the significance of the natural, the organic, and the inorganic in Western aesthetics. Esther Leslie considers how radical innovations in chemistry confounded earlier alchemical and Romantic philosophies of science and nature while profoundly influencing the theories that developed in their wake. She also explores how advances in chemical engineering provided visual artists with new colors, surfaces, coatings, and textures, thus dramatically recasting the way painters approached their work. Ranging from Goethe to Hegel, Blake to the Bauhaus, Synthetic Worlds ultimately considers the astonishing affinities between chemistry and aesthetics more generally. As in science, progress in the arts is always assured, because the impulse to discover is as immutable and timeless as the drive to create.
Category: Science

A Meaningful World

Author : Benjamin Wiker
ISBN : 9780830874309
Genre : Religion
File Size : 55.76 MB
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Meaningful or meaningless? Purposeful or pointless? When we look at nature, whether at our living earth or into deepest space, what do we find? In stark contrast to contemporary claims that the world is meaningless, Benjamin Wiker and Jonathan Witt reveal a cosmos charged with both meaning and purpose. Their journey begins with Shakespeare and ranges through Euclid's geometry, the fine-tuning of the laws of physics, the periodic table of the elements, the artistry of ordinary substances like carbon and water, the intricacy of biological organisms, and the irreducible drama of scientific exploration itself. Along the way, Wiker and Witt fashion a robust argument from evidence in nature, one that rests neither on religious presuppositions nor on a simplistic view of nature as the best of all possible worlds. In their exploration of the cosmos, Wiker and Witt find all the challenges and surprises, all of the mystery and elegance one expects from a work of genius.
Category: Religion

Silent Spring

Author : Rachel Carson
ISBN : 0618249060
Genre : Nature
File Size : 21.79 MB
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Discusses the reckless annihilation of fish and birds by the use of pesticides and warns of the possible genetic effects on humans.
Category: Nature