Download or read book Recent Advances in Signal Processing written by Ashraf Zaher and published by BoD – Books on Demand. This book was released on 2009-11-01 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: The signal processing task is a very critical issue in the majority of new technological inventions and challenges in a variety of applications in both science and engineering fields. Classical signal processing techniques have largely worked with mathematical models that are linear, local, stationary, and Gaussian. They have always favored closed-form tractability over real-world accuracy. These constraints were imposed by the lack of powerful computing tools. During the last few decades, signal processing theories, developments, and applications have matured rapidly and now include tools from many areas of mathematics, computer science, physics, and engineering. This book is targeted primarily toward both students and researchers who want to be exposed to a wide variety of signal processing techniques and algorithms. It includes 27 chapters that can be categorized into five different areas depending on the application at hand. These five categories are ordered to address image processing, speech processing, communication systems, time-series analysis, and educational packages respectively. The book has the advantage of providing a collection of applications that are completely independent and self-contained; thus, the interested reader can choose any chapter and skip to another without losing continuity.
Download or read book Transporters and Pumps in Plant Signaling written by Markus Geisler and published by Springer Science & Business Media. This book was released on 2010-10-17 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to their sessile lifestyle, plants need to efficiently adapt to changing environmental conditions during their life cycle. Nutrient acquisition from the soil has to be able to adapt to considerable fluctuations in concentrations to ensure adequate distribution between tissues, cells and organelles. The storage and retrieval of nutrients, metabolites or toxic substances in vacuoles plays an important part in cellular homeostasis in plants. The long-range transport and maintenance of turgor is critically dependent on the availability of water and rate of evaporation, while at the same time photosynthetic products have to be transported to all plant parts. As a result plants contain a large number of ATP-dependent pumps and secondary transporters that, in order to adapt to the changing environment, need to be regulated by a complex network of sensing and signaling mechanisms. Plants share many basic elements of signal transduction with animals, but also contain plant-specific signaling molecules and mechanisms. In this volume, the role of transporters and pumps in the regulation of movement, long-range transport and compartmentalization of water, solutes, nutrients and classical signaling molecules is highlighted, and the function, regulation and membrane-transporter interaction and their roles in plant signaling controlling plant physiology and development are discussed.
Download or read book The Plant Plasma Membrane written by Angus S. Murphy and published by Springer Science & Business Media. This book was released on 2010-11-11 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: In plant cells, the plasma membrane is a highly elaborated structure that functions as the point of exchange with adjoining cells, cell walls and the external environment. Transactions at the plasma membrane include uptake of water and essential mineral nutrients, gas exchange, movement of metabolites, transport and perception of signaling molecules, and initial responses to external biota. Selective transporters control the rates and direction of small molecule movement across the membrane barrier and manipulate the turgor that maintains plant form and drives plant cell expansion. The plasma membrane provides an environment in which molecular and macromolecular interactions are enhanced by the clustering of proteins in oligimeric complexes for more efficient retention of biosynthetic intermediates, and by the anchoring of protein complexes to promote regulatory interactions. The coupling of signal perception at the membrane surface with intracellular second messengers also involves transduction across the plasma membrane. Finally, the generation and ordering of the external cell walls involves processes mediated at the plant cell surface by the plasma membrane. This volume is divided into three sections. The first section describes the basic mechanisms that regulate all plasma membrane functions. The second describes plasma membrane transport activity. The final section of the book describes signaling interactions at the plasma membrane. These topics are given a unique treatment in this volume, as the discussions are restricted to the plasma membrane itself as much as possible. A more complete knowledge of the plasma membrane’s structure and function is essential to current efforts to increase the sustainability of agricultural production of food, fiber, and fuel crops.
Download or read book Trafficking and Sex Work written by Mathilde Darley and published by Taylor & Francis. This book was released on 2022-12-30 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Set in different national contexts (Brazil, Bulgaria, France, Germany, Laos, Norway, Thailand) and in different social science disciplines, the chapters of this volume aim at questioning anti-trafficking policies and their practical impact on sex work regulation. Many actors, from media to researchers, from nonprofit organizations to law enforcement agencies, from "experts" to "reality tourists", contribute to produce knowledge on trafficking and sexual exploitation and thus to institutionalize it as a category of thought and action; by naming and framing perpetrators and victims, they make trafficking "come true" as a public problem. The book pays particular attention to the way the international expertise produced by these different actors and institutions on sexual exploitation and sex work impacts local control practices, especially with regard to law enforcement. The fight against trafficking as it gets institutionalized and put into practice then appears as a way to reaffirm a gendered and racialized public order. Building analytical bridges between different national contexts and relying on contextualized fieldwork in different countries, the book is of great interest for academics as well as for practitioners and/or activists working on sex and gender issues and migration policies. Also, it resonates with a broader literature on the construction of public problems in sociology and political science.
Download or read book Counterexamples in Probability written by Jordan M. Stoyanov and published by Courier Corporation. This book was released on 2014-01-15 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: "While most mathematical examples illustrate the truth of a statement, counterexamples demonstrate a statement's falsity. Enjoyable topics of study, counterexamples are valuable tools for teaching and learning. The definitive book on the subject in regards to probability, this third edition features the author's revisions and corrections plus a substantial new appendix. 2013 edition"--
Download or read book Aquaporins in Health and Disease written by Graca Soveral and published by CRC Press. This book was released on 2018-10-30 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the discovery of Aquaporin-1 (AQP1) as a water channel, many studies have revealed the importance of aquaporins in mammalian physiology and pathophysiology as well as plant and microbial biology. The studies have also shown aquaporins as potential drug targets and targets for improving crop properties. Written by an international group of contributors at the forefront of the field, Aquaporins in Health and Disease: New Molecular Targets for Drug Discovery presents the latest research advances in aquaporins and other major intrinsic protein (MIP) channels. The first section of the book describes the general concepts of aquaporin channel function, genomic research, structure-function analysis of aquaporins and glycerol facilitators, and regulation by gating and trafficking, including yeast aquaporin regulation and function. The second section discusses the physiological and pathophysiological roles of aquaporins in humans and microbes. The final section covers the development of inhibitors of aquaporin function. The book’s epilogue offers future perspectives and directions, mainly in the area of aquaporin-based diagnostics and therapeutics. Stimulating future research on this important protein family, this book facilitates a paradigm shift in the understanding and roles of aquaporin membrane proteins in all biological settings. It encourages scientists to develop novel approaches for the treatment of human diseases based on aquaporin function or dysfunction.
Download or read book Membrane Transport in Plants written by and published by Academic Press. This book was released on 2018-10-31 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Transporters, Volume 87, the latest release in the Advances in Botanical Research series, brings together the experiences and critical information teachers, researchers and managers must consider from scientific and legal points-of-view as they relate to biotechnology. New chapters in this updated volume include sections on P-type ATPases, ABC transporters, Nitrate transport, Metal transporters, Hormone transporters, Plant aquaporins, Ion channel regulation in guard cells, Ion transport in pollen tube growth, Xylem loading under stress, and Transporters during arbuscular mycorrhizal symbiosis. - Encompasses various aspects of the GMO debate (its historical background, current status, recent research outcomes, potential future developments) - Written by highly competent authors from all continents - Based on facts and written in a dispassionate and non-polemical tone
Download or read book Assessing Prostitution Policies in Europe written by Synnøve Økland Jahnsen and published by Routledge. This book was released on 2019-07-30 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Once again, prostitution occupies a prominent position on public and political agendas, both nationally and internationally. A topic of concern and interest within social and academic realms, it is a highly moralised, contested issue that is at the centre of heated and drawn-out debates. With each chapter dedicated to a separate country and written by a national authority on the subject, Assessing European Prostitution Policies seeks to explore how prostitution is regulated in 21 European countries, thus drawing out important implications for an effective and humane prostitution policy. Indeed, this innovative volume brings together systematic accounts of how national and local forms of governance influence the commercial market for sex as well as the lives of sex workers and third parties. All chapters cover the history of prostitution policy, national laws regulating prostitution, policy formulation and implementation, the national discourse on prostitution, the gap between national and local regulation, the impact of policy on the lives and rights of sex workers, and sex worker advocacy organizations. In addition to this, the authors examine and highlight how immigration, labour, fiscal and welfare law have as much impact on the sex trade as designated prostitution law. A unique interdisciplinary title that is comprehensive in its coverage, Assessing European Prostitution Policies will appeal to undergraduate and postgraduate students, postdoctoral researchers, sex worker advocacy organisations and policy makers interested in fields such as Sexuality and Prostitution, Public Policy, Criminology and Gender Studies.
Download or read book Advanced Geoinformation Science written by Chaowei Yang and published by CRC Press. This book was released on 2010-10-21 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the challenges of the next century will have physical dimensions, such as tsunamis, hurricanes, and climate change as well as human dimensions such as economic crises, epidemics, and emergency responses. With pioneering editors and expert contributors, Advanced Geoinformation Science explores how certain technical aspects of geoinformation
Download or read book Aquaporins Dynamic Role and Regulation written by Rupesh K. Deshmukh and published by Frontiers Media SA. This book was released on 2017-10-10 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquaporins (AQPs), a class of integral membrane proteins, form channels facilitating movement of water and many other solutes. In solute transport systems of all living organisms including plants, animals and fungi, AQPs play a vital role. Plants contain a much higher number of AQP genes compared to animals, the likely consequence of genome duplication events and higher ploidy levels. As a result of duplication and subsequent diversification, plant AQPs have evolved several subfamilies with very diverse functions. Plant AQPs are highly selective for specific solutes because of their unique structural features. For instance, ar/R selectivity filters and NPA domains have been found to be key elements in governing solute permeability through the AQP channels. Combination of conserved motifs and specific amino acids influencing pore morphology appears to regulate the permeability of specific solutes such as water, urea, CO2, H2O2, boric acid, silicic acid and many more. The discovery of novel AQPs has been accelerated over the last few years with the increasing availability of genomic and transcriptomic data. The expanding number of well characterised AQPs provides opportunities to understand factors influencing water transport, nutritional uptake, and elemental balance. Homology-based search tools and phylogenetic analyses offer efficient strategies for AQP identification. Subsequent characterization can be based on different approaches involving proteomics, genomics, and transcriptomic tools. The combination of these technological advances make it possible to efficiently study the inter-dependency of AQPs, regulation through phosphorylation and reversible phosphorylation, networking with other transporters, structural features, pH gating systems, trafficking and degradation. Several studies have supported the role of AQPs in differential phenotypic responses to abiotic and biotic stress in plants. Crop improvement programs aiming for the development of cultivars with higher tolerance against stresses like drought, flooding, salinity and many biotic diseases, can explore and exploit the finely tuned AQP-regulated transport system. For instance, a promising approach in crop breeding programs is the utilization of genetic variation in AQPs for the development of stress tolerant cultivars. Similarly, transgenic and mutagenesis approaches provide an opportunity to better understand the AQP transport system with subsequent applications for the development of climate-smart drought-tolerant cultivars. The contributions to this Frontiers in Plant Science Research Topic have highlighted the evolution and phylogenetic distribution of AQPs in several plant species. Numerous aspects of regulation that seek to explain AQP-mediated transport system have been addressed. These contributions will help to improve our understanding of AQPs and their role in important physiological aspects and will bring AQP research closer to practical applications.
Download or read book Greek Texts and Armenian Traditions written by Francesca Gazzano and published by Walter de Gruyter GmbH & Co KG. This book was released on 2016-08-22 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: An interdisciplinary approach, crucial as it is in most fields of research, proves itself to be unescapable in the study of interactions between the ancient Armenian and Greek worlds and literatures. The volume arises from such an awareness and collects papers presented in a conference which has been organized in 2013 at the University of Genova, thanks to a cooperation with the Université Paris-Sorbonne, following in the footsteps of a tradition inaugurated by Giancarlo Bolognesi in the years '80 and '90. The subject is explored from many points of view: the topic of Armenian translations of Greek texts – with considerations of a methodological nature and the discussion of case-studies –, aspects which pertain to the historical context and the historiographical sources, the wide theme of the Armenian reception of Biblical, Christian and Byzantine literature, and finally philological, linguistic and lexical problems. The aim of this kind of research is to exploit the cooperation among classical philologists, linguists and Armenologists, in order to face the challenge of investigating a subject which requires many different competences.
Download or read book Time Out Shortlist Paris 2008 written by Editors of Time Out and published by Time Out Guides. This book was released on 2007-09-28 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by local experts who know the city inside out, this savvy guide helps travelers avoid tourist traps and experience the real Paris. Alongside established favorites are the city's newest hot spots -- restaurants, bars, clubs, galleries, shops, and more. An extensive events calendar and day trips to Versailles and other nearby destinations are also included.
Download or read book Soil Water Deficit and Physiological Issues in Plants written by Amitav Bhattacharya and published by Springer Nature. This book was released on 2021-02-25 with total page 717 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the impact of soil water deficiency on various aspects of physiological processes in plants. The book explains the effects under soil water deficit condition such as lowering of plant water content, disturbance in carbon metabolism such in photosynthesis, photorespiration and respiration as well as effects of soil water deficit on nitrogen metabolism. The book also educates the readers about, mineral nutrition under soil water deficit condition and roles of different nutrient to overcome water deficit. Changes in growth and development pattern of plant under soil water deficit condition and effects on growth and development are elaborated. This book is of interest to teachers, researchers, scientists in botany and agriculture. Also the book serves as additional reading material for undergraduate and graduate students of agriculture, forestry, ecology, soil science, and environmental sciences. National and international agricultural scientists, policy makers will also find this to be a useful read. The in depth description of the major physiological issues in plants under soil water deficit that are presented in this book will help breeders tailoring crops for desirable physiological survival traits in the face of increasing soil water deficit. This book is an impactful addition to the library of any faculty members, researchers, agricultural policy planner, post graduate or student studying in plant physiology, biochemistry, microbiology and other subjects related to crop husbandry.
Download or read book Peacocks and Associated Martingales with Explicit Constructions written by Francis Hirsch and published by Springer Science & Business Media. This book was released on 2011-05-24 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: We call peacock an integrable process which is increasing in the convex order; such a notion plays an important role in Mathematical Finance. A deep theorem due to Kellerer states that a process is a peacock if and only if it has the same one-dimensional marginals as a martingale. Such a martingale is then said to be associated to this peacock. In this monograph, we exhibit numerous examples of peacocks and associated martingales with the help of different methods: construction of sheets, time reversal, time inversion, self-decomposability, SDE, Skorokhod embeddings. They are developed in eight chapters, with about a hundred of exercises.
Download or read book Oxidative Stress Responses in Plants written by and published by Elsevier. This book was released on 2023-02-16 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidative Stress Response in Plants, Volume 105 covers environmental stress conditions and the accumulation of reactive oxygen species (ROS). During many stress conditions such as salt, drought, heat, and pathogen infection, changes in metabolic fluxes and alterations in enzymatic activities result in the accumulation of ROS, a major contributor to loss of growth and productivity. High levels of ROS can lead to oxidative stress which damages proteins and DNA, ultimately resulting in plant cell death. This volume provides comprehensive insights into ROS biology in plants, with a focus on plant growth and development, plant defense responses, and plant acclimation to challenging environments. On the other hand, ROS evolves into potent signaling molecules that play crucial roles in abiotic and biotic stress sensing, integration of different environmental signals, and activation of stress-response networks, thereby contributing to the establishment of improved stress resilience. - Provides a comprehensive overview of ROS biology in plants - Focuses on the production, processing and signaling roles of ROS in plants - Written by world-leading experts
Download or read book Water Stress and Crop Plants written by Parvaiz Ahmad and published by John Wiley & Sons. This book was released on 2016-06-08 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants are subjected to a variety of abiotic stresses such as drought, temperature, salinity, air pollution, heavy metals, UV radiations, etc. To survive under these harsh conditions plants are equipped with different resistance mechanisms which vary from species to species. Due to the environmental fluctuations agricultural and horticultural crops are often exposed to different environmental stresses leading to decreased yield and problems in the growth and development of the crops. Drought stress has been found to decrease the yield to an alarming rate of some important crops throughout the globe. During last few decades, lots of physiological and molecular works have been conducted under water stress in crop plants. Water Stress and Crop Plants: A Sustainable Approach presents an up-to-date in-depth coverage of drought and flooding stress in plants, including the types, causes and consequences on plant growth and development. It discusses the physiobiochemical, molecular and omic approaches, and responses of crop plants towards water stress. Topics include nutritional stress, oxidative stress, hormonal regulation, transgenic approaches, mitigation of water stress, approaches to sustainability, and modern tools and techniques to alleviate the water stress on crop yields. This practical book offers pragmatic guidance for scientists and researchers in plant biology, and agribusinesses and biotechnology companies dealing with agronomy and environment, to mitigate the negative effects of stress and improve yield under stress. The broad coverage also makes this a valuable guide enabling students to understand the physiological, biochemical, and molecular mechanisms of environmental stress in plants.
Download or read book Ionic Liquids written by Barbara Kirchner and published by Springer. This book was released on 2009-12-01 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Ionic liquids will never find application in industry”, “I don’t understand this fad for ionic liquids” and “there is no widespread interest in these systems” are just three of quotes from the reports of referees for research proposals that I have received over the years. I wonder what these people think today. There are currently at least nine large-scale industrial uses of ionic liquids, including, we now rec- nise, the production of ?-Caprolactam (a monomer for the production of nylon-6) [1]. There has been a steady increase in the interest in ionic liquids for well over a decade and last year the number of papers and patents including ionic liquids was counted in the thousands. This remarkable achievement has been built on the hard work and enthusiasm, first of a small band of devotees, but now of huge numbers of scientists all over the world who do not see themselves as specialists in ionic liquids. The ionic liquids field continues to develop at an incredible rate. No sooner do I think that I am on top of the literature than it turns out that a whole new area of work has emerged without me noticing. Things that were once supposedly impos- 1 sible in ionic liquids, such as measuring the H NMR of solutes, are now widely applicable (see Chapter 8). Hence, collected volumes such as this are very w- come.
