الصفحة 18
الصفحة 18
Nitrogen Fixation in Agriculture, Forestry, Ecology, and the Environment
Sustainability has a major part to play in the global challenge of continued development of regions, countries, and continents all around the World and biological nitrogen fixation has a key role in this process. This volume begins with chapters specifically addressing crops of major global importance, such as soybeans, rice, and sugar cane. It continues with a second important focus, agroforestry, and describes the use and promise of both legume trees with their rhizobial symbionts and other nitrogen-fixing trees with their actinorhizal colonization. An over-arching theme of all chapters is the interaction of the plants and trees with microbes and this theme allows other aspects of soil microbiology, such as interactions with arbuscular mycorrhizal fungi and the impact of soil-stress factors on biological nitrogen fixation, to be addressed. Furthermore, a link to basic science occurs through the inclusion of chapters describing the biogeochemically important nitrogen cycle and its key relationships among nitrogen fixation, nitrification, and denitrification. The volume then provides an up-to-date view of the production of microbial inocula, especially those for legume crops.
Nitrogen Cycling in the Americas : Natural and Anthropogenic Influences and Controls
The rate of creation of reactive nitrogen (NR) on the earth has dramatically increased in the last half century mainly due to the production of N-fertilizer through the Haber-Bosch process, fossil fuel combustion, and the cultivation of plants that fix N from the atmosphere. The anthropogenic production of NR has been especially high in developed countries of the temperate zone, such as the USA and Canada, where severe eutrophication of estuaries and coastal zones, acidification of lakes and streams, loss of biodiversity, and reduced forest productivity have become common environmental problems associated with increasing nitrogen loads to ecosystems. This book presents a series of studies from across the Americas whose aim is to highlight key natural processes that control nitrogen cycling as well as discuss the main anthropogenic influences on the nitrogen cycle in both the tropical and temperate regions of the Americas.
Nitric oxide in plants : A molecule with dual roles
Studies have identified the central role of nitric oxide in stress mitigation through the modulation of physiological and biochemical pathways including germination, photosynthesis regulation, and programmed cell death. Nitric Oxide in Plants: A Molecule with Dual Roles provides a detailed account of the physio-biochemical, molecular, and omic basis of NO-mediated responses in crop plants under different stresses.
Nitric Oxide in Plant Growth, Development and Stress Physiology
The first part of the book is devoted to the description of key features related to NO biochemistry, synthesis and metabolism and the modes of action involved. The second part covers the functionality of NO in three central nodes of the plant life cycle: growth, development and stress physiology.
Nishina Memorial Lectures : Creators of Modern Physics
This volume is a collection of Nishina Memorial Lectures delivered by distinguished physicists during the past 50 years at the invitation of the Nishina Memorial Foundation.
Nine algorithms that changed the future : The ingenious ideas that drive today’s computers
Every day, we use our computers to perform remarkable feats. A simple web search picks out a handful of relevant needles from the world’s biggest haystack. Uploading a photo to Facebook transmits millions of pieces of information over numerous error-prone network links, yet somehow a perfect copy of the photo arrives intact. Without even knowing it, we use public-key cryptography to transmit secret information like credit card numbers, and we use digital signatures to verify the identity of the websites we visit. How do our computers perform these tasks with such ease?
Nimesulide - Actions and Uses
Nimesulide is a non-steroidal anti-inflammatory drug (NSAID) which acts as a cyclooxygenase- 2 inhibitor but also has other novel pharmacological features which account for its effect in the control of pain and inflammation. It has become a leading NSAID in over 50 countries worldwide. This book provides a comprehensive and fully up-to-date critical review of the published literature on nimesulide, including comparisons with anti-inflammatory, analgesic and antipyretic agents. The emphasis is on the action of nimesulide in relation to its therapeutic and side effects in comparison with other established NSAIDs, including the new class of Coxibs.
Nicotinic Acetylcholine Receptor Signaling in Neuroprotection
Presents the roles and mechanisms of signal transduction triggered by nicotinic acetylcholine receptors (nAChRs) stimulation in neuroprotection against toxic effects of risk factors of neurodegenerative diseases. Accumulating evidence suggests that nAChRs in the CNS play important roles not only in excitatory neurotransmission but also in neuronal survival and related functions. Neuroprotection mediated by nAChRs in neurodegenerative diseases such as Alzheimer's disease is the major topic of this book. In response to rapidly evolving areas in clinical and laboratory neuropharmacology and neurochemistry, this volume provides in-depth coverage of neuroprotection in basic research and future developments in the clinical application of effective neuroprotective strategies in neurodegenerative diseases. This work appeals to both basic and clinical researchers in several fields, such as neuroscience, neurology, and pharmacology.
Nicotine addiction and its treatment = إدمان النيكوتين وكيفية علاجه
Nicotine is the main cause of smoking addiction, and the custom of preparation for smoking itself and smell of cigarettes create addictive behavior among smokers. Today, nicotine is socially most widely accepted legal drug in the world, and its uptake into the organism through the respiratory tract is 10 times stronger than heroin. Addiction and necessity for cigarettes are constant and intense, and the treatment for smoking addicts is long and difficult. Smoking is a worldwide epidemic, which is closely connected to other addictions such as coffee, alcohol, drugs, and gambling. Smoking cessation is associated with clear health benefits. Cigarette smoking is the leading preventable cause of death in worldwide. In this project we will discuss the nicotine, the mechanism of its addiction and medications used for smoking cessation
N-Heterocyclic Carbenes in Transition Metal Catalysis
It was only in the early 1990s that carbenes with the carbene carbon being incorporated in a nitrogen containing heterocycle (N-heterocyclic carbenes or NHCs) were found to be stable enough to be isolated. Since the first report on the application of NHCs as ligands in transition metal catalysis in 1995, NHC have found numerous applications and have been established as a versatile and indispensable class of ligands. For many reactions like metathesis or cross-coupling reactions NHCs have often become the ligands of choice, allowing otherwise difficult transformations. In this book leading experts have surveyed major areas of application of NHC metal complexes in catalysis. The authors have placed a special focus on nickel- and palladium-catalyzed reactions, on applications in metathesis reactions, on oxidation reactions and on the use of chiral NHC-based catalysts. This compilation is rounded out by an introductory chapter and a chapter dealing with synthetic routes to NHC metal complexes.
NFTs For Dummies
It's not often that a brand-new investment comes along that revolutionizes how we buy and sell digital assets. But that's what non-fungible tokens (NFTs) did. Built on blockchain tech, NFTs are shaking up the world of digital commodity investing. And you can get your slice of the pie before everyone jumps into the arena.
NFPA 5000 : Building construction and safety code 2021
Provides requirements for those construction, protection, and occupancy features necessary to safeguard life, health, property, and public welfare and minimize injuries.
NF-kB/Rel Transcription Factor Family
Since its first discovery in the early 90’s, the NF-kB/Rel transcription factor family has drawn the attention of experimental biologists, medical profession, and biotech/pharmaceutical industries for its broad and diverse roles in all aspects of human biology and disease. NF-kB/Rel Transcription Factor Family intends to provide an up-to-date guide to the ever-expanding knowledge in the field of NF-kB/Rel transcription factor family.
Nez, gorge, oreille en médecine traditionelle chinoise = Nose, throat, ear in traditional Chinese medicine
ENT doctor for forty years, acupuncturist for thirty years, Bernard Cygler occupies a privileged position between "West" and "East". Chinese vision provides incomparable help in understanding and attempting to cure ailments that are particularly hopeless in Western medicine such as nasal polyposis, anosmia, and tinnitus. It is valuable in that it offers the possibility of avoiding surgical procedures or allopathic treatments with sometimes unpleasant side effects. This approach aims to treat the patient rather than the symptom, the whole rather than the disease itself. With his medico-surgical experience and his practice of Chinese medicine, the author tried to "marry" the two facets of his exercise while remaining faithful to traditional texts in the spirit of the French Acupuncture Association. , to which it belongs. The humanist approach delivered by the author, combining "tradition and modernity", is characterized by a desire for transmission so that a certain idea of the art of healing may live on for longer. Doctor Bernard Cygler, former intern and former head of clinic-assistant of hospitals, head of hospital ENT department from 1972 to 2003 is a member of the French Acupuncture Association and of the French Acupuncture College. He has written numerous publications in traditional Chinese medicine.
Nexus Network Journal 9,2 : Architecture and Mathematics
This volume is dedicated to "Mechanics in Architecture", that is, the science of structural mechanics, including the behaviour of structures, internal forces, and deformation, as well as the development of new structural systems to resist thrusts as a result of new architectural forms. It is a field of enquiry that examines a particular aspect of the relationships between architecture and the mathematical sciences. Some of the papers in this issue were presented at the Nexus 2006 conference during a special session dedicated to mechanics. Other research papers focus on an eighteenth-century Belgian pyramid, aspects of "fractal" architecture, and properties of a family of irrational values. The issue also includes a description and evaluation of a university-level course in architecture and mathematics, Rachel Fletcher's Geometer's Angle column, and book reviews.
Nexus Network Journal 9,1 : Architecture and Mathematics
This issue is dedicated to various kinds of patterns in architecture. Buthayna Eilouti and Amer Al-Jokhadar address patterns in shape grammars in the ground plans of Mamluk madrasas, religious schools. Giulio Magli goes back further in history, to the age of Greek colonies in Italy before they were conquered by the Romans, to examine patterns in urban design. In Traditional Patterns in Pyrgi of Chios: Mathematics and Community Charoula Stathopoulou examines the geometric patterns that decorate the buildings of the town of Pyrgi, on the Greek island of Chios. Curve Fitting is a study of ways to construct a function so that its graph most closely approximates the pattern given by a set of points.
Nexus Network Journal : Leonardo da Vinci : Architecture and Mathematics
The quintessential Renaissance Man, Leonardo da Vinci was well aware of the fundamental importance of mathematics for architecture. This issue of the Nexus Network Journal examines Leonardo’s knowledge of theoretical mathematics, explores how he used concepts of geometry in his designs for architectural projects, and reports on a real-life construction project using Leonardo’s principles. Authors include Sylvie Duvernoy, Kim Williams, Rinus Roelofs, Biagio Di Carlo, Mark Reynolds, João Pedro Xavier, Vesna Petresin, Christopher Glass, and Jane Burry. To complete the issue Rachel Fletcher writes her Geometer’s Angle column on "Dynamic Symmetry", Michael Ostwald reviews A Theory of General Ethics by Warwick Fox, Sarah Clough Edwards reviews Inigo Jones and the Classical Tradition by Christy Anderson, and Sylvie Duvernoy reviews Architecture and Mathematics in Ancient Egypt by Corinna Rossi.
Next-Generation FTTH Passive Optical Networks : Research Towards Unlimited Bandwidth Access
Dense FTTH Passive Optical Networks (PONs) is a cost efficient way to build fibre access, and international standards (G/E-PON) have been already launched, leading to new set of telecom products for mass deployment. However, these systems only make use of less than 1% of the optical bandwidth; thus, relevant research is taking place to maximize the capacity of these systems, with the latest opto-electronic technologies, demonstrating that the huge bandwidth available through the fibre access can be exploited in a cost efficient and reliable manner.
Next Genration = جمعية الجيل القادم
الأسرة هي أساس المجتمع وبنيته الجوهرية و نتيجة للعديد من الظروف تولد لدينا العديد من حالات الأسر المفككة والعديد من الاطفال الأيتام فاقدة المأوى ومن هنا ظهرت الحاجة إلى وجود و تأمن البيئة الآمنة و تأمين برامج و مراكز لتأهيل الأهالي و الأقارب والمتطوعين على كيفية معالجة و رعاية الأطفال
Next Generation Transport Networks : Data, Management, and Control Planes
Next Generation Transport Networks: Data, Management, and Control Planes provides a tutorial and reference information for next generation telecommunication network technologies. This insightful and accessible overview includes key technologies that comprise the backbone of the networking infrastructure.
