الصفحة 44
الصفحة 44
Microelectronic Circuits
Devices and basic circuits -- Signals, amplifiers and semiconductors -- Operational amplifiers -- Diodes -- Bipolar junction transistors (BJTS) -- Mos field-effect transistors (MOSFETS) -- Transistor amplifiers -- Analog integrated circuits -- Building blocks of integrated-circuit amplifiers -- Differential and multistage amplifiers -- Frequency response -- Feedback -- Output stages and power amplifiers -- Operational-amplifier circuits -- Filters and oscillators -- Digital integrated circuits -- CMOS digital logic circuits -- Digital Design: Power, Speed, and Area -- Memory and Clocking Circuits
Microbial Activity in the Rhizosphere
The rhizosphere is a very complex environment in which the effects of the plant on soil microorganisms and the effects of the microorganisms on the plant are interacting and are interdependent. Plant root exudates and breakdown products attract microbes and feed them and, in turn, the plants often benefit from the microbes. Interactions among microorganisms and plant roots are essential for nutritional requirements of the plant. Plant growth, development and productivity are largely dependent on the soil environment in the root region rhizosphere. The new techniques of studying the rhizosphere enables us to get a much better understanding of the dynamics of the rhizosphere population, such rhizosphere studies being of interest to agriculturists, soilbiologists, chemists, microbiologists and molecular biologists. The rhizosphere microbes in?uence the root environment in several ways. They may change the oxidation-reduction potential, influence the availability of moisture and nutrients, produce growth inhibiting or growth promoting substances in the form of exudates, provide competition and possibly induce many other effects. My corrhizal associations are beneficial in mineral uptake and in increasing root surface area for effective ion absorption. Antagonism, ompetition and synergism in soil and the rhizoplane (rhizosphere) are the most important microbial interactions to consider in the study of rhizosphere biology. With the growing information on the production of growth regulators, competitiveness of the microbes in the rhizosphere, microsymbionts, and other factors, their effect upon plant growth will become more evident. Experiments on the introduction of microbes or their products in the rhizosphere will help to improve our understandingofthebiologyoftherhizosphere.
Micro- and opto-electronic materials and Structures : Physics, mechanics, design, reliability, packaging ; Vol. I : Materials physics - materials mechanics ; Vol. II : Physical design - reliability and packaging
Micro- and Opto-Electronic Materials and Structures: Physics, Mechanics, Design, Reliability, Packaging is the first comprehensive reference to collect and present the most, up-to-date, in-depth, practical and easy-to-use information on the physics, mechanics, reliability and packaging of micro- and opto-electronic materials, assemblies, structures and systems. The chapters in these two volumes contain summaries of the state-of-the-art and present new information on recently developed important methods or devices. Furthermore, practical recommendations are offered on how to successfully apply current knowledge and recently developed technology to design, manufacture and operate viable, reliable and cost-effective electronic components or photonic devices. The emphasis is on the science and engineering of electronic and photonic packaging, on physical design problems, challenges and solutions.
Metric Driven Design Verification : An Engineer's and Executive's Guide to First Pass Success
A metric based flow is described that focuses on the four steps of: 1. Planning: Defining what needs to be done and the automatically trackable metrics that will be used to measure progress. 2. Execution: Implementing verification environments and then extensively exercising the device under verification utilizing comprehensive, massively parallel regression strategies. 3. Measurement: Automatically capturing the metrics defined in planning to provide objective data with which to manage the verification project. Custom tailoring those metrics through an automated reporting framework to provide all stakeholders a real-time meaningful view of project status. 4. Response: Utilizing the returned metrics to effectively adapt to changing project conditions. Making use of automated response mechanisms to automate engineering processed and management response to streamline project management processes
Methods and Tools for Effective Knowledge Life-Cycle-Management
This book provides an understanding of what knowledge is and of why it is one of the most strategic issues in future manufacturing competitiveness, which will be based primarily on high-level technologies and innovative products.
Methods and Tools for Drought Analysis and Management
Implementation of effective drought management policies requires both advanced technologies and appropriate methods. Monitoring and forecasting systems, practical tools for risk assessment, as well as simple and objective criteria to select and implement appropriate drought mitigation measures are key elements for a successful drought management strategy.These key issues have been tackled by universities and public agencies involved in the EU projects Sedemed and Sedemed II (Programme Interreg IIIB MEDOCC), aimed at the definition of an integrated network for real time monitoring of drought, the development of common methodologies for drought analysis and forecasting, as well as the definition of proper mitigation strategies for the Mediterranean countries.The book presents the main outcomes of such projects with a special focus on: drought monitoring and forecasting echniques at different spatial scales; new or modified agrometeorological indices and remote sensing technique for drought identification and characterization; tools to improve surface water resources management under drought conditions; methods and tools for groundwater resources monitoring and management, based on hydrogeological and hydrodynamics characteristics of aquifers; general criteria to select and implement mitigation strategies to prevent or minimize drought impacts.
Metals in Society and in the Environment : A Critical Review of Current Knowledge on Fluxes, Speciation, Bioavailability and Risk for Adverse Effects of Copper, Chromium, Nickel and Zinc
In 2002, the Swedish Metal Information Task Force (MITF) engaged the Environmental Research Group (MFG) to update previous monographs on copper, zinc and major alloying metals (such as chromium, nickel and molybdenum) in society and in the environment. This book presents new results on metal fluxes from society to the environment, on metal speciation in water, soil and sediment, and its interpretation in terms of mobility, biological uptake and toxicity. The scientific fundamentals of new approaches, like the Acid Volatile Sulphide (AVS) concept to predict metal bioavailability in sediments, and the Biotic Ligand Model (BLM) to calculate the toxicity of metals to aquatic organisms, are critically evaluated, with a focus on copper, nickel, zinc, and, in part, chromium.
Metalliferous Sediments of the World Ocean : Fundamental Theory of Deep-Sea Hydrothermal Sedimentation
Dramatic advances in understanding global tectonics have been made in the last half century and the information and specific data acquired on the floor of the World Ocean by the scientific community probably has exc- ded that available in all previous time. With the benefit of new technology and advanced concepts in the earth sciences extensive exploration of the deep seabed became possible, and has been carried out in many parts of the world. Many features have been recognized and data recorded that are vital for understanding the fundamental processes that shape the earth=s surface and control the habitable environment. The data collected to date on the o- an floor and its physical environment greatly exceeds our understanding and appreciation of their fundamental importance in the earth sciences, and our ability to apply this knowledge effectively in improving our way of life.
Metakaolin and Fly Ash as Mineral Admixtures for Concrete
Deals with modern theoretical concepts related to the impact of fly ash and metakaolin admixtures on structure formation processes of concrete. Results of the effect of fly ash, metakaolin and their composition on properties of self-compacting and self-leveling concrete are presented. Based on mathematical models, obtained using mathematical experiments planning methodology, the impact of the main factors and their combination on workability, strength and other properties that determine efficiency and durability of concrete are analyzed. Using calculated dependencies, a methodology for designing optimal compositions of concrete containing active mineral admixtures and superplasticizers is proposed. Features of industrial production of concrete for the proposed compositions are discussed. The book is intended for specialists working in the production of concrete and reinforced concrete products and elements. It can also be used by construction engineers to design compositions of cost-effective self-compacting and self-leveling concrete as well as to determine the rational direction of using technogenic raw materials like ash and metakaolin.
Metaheuristic Optimization via Memory and Evolution : Tabu Search and Scatter Search
Tabu Search (TS) and, more recently, Scatter Search (SS) have proved highly effective in solving a wide range of optimization problems, and have had a variety of applications in industry, science, and government. The goal of METAHEURISTIC OPTIMIZATION VIA MEMORY AND EVOLUTION: Tabu Search and Scatter Search is to report original research on algorithms and applications of tabu search, scatter search or both, as well as variations and extensions having "adaptive memory programming" as a primary focus. Individual chapters identify useful new implementations or new ways to integrate and apply the principles of TS and SS, or that prove new theoretical results, or describe the successful application of these methods to real world problems.The chapters of this book provide a series of landmarks along the way as we investigate and seek to better understand the elements of tabu search and scatter search that account for their successes in an astonishingly varied range of applications.
Messages security application
The rapid development of communication technology, is bringing many technological conveniences with it and simplifying our lives. On the other hand, it has disadvantages such as hiding the information that is continuously roaming through various communication media resources between senders and receivers and avoid sharing them with third parties. Eliminating these disadvantages via specific security methods and algorithms is related to the discipline called cryptography, which includes information security. Encryption is the process of turning a plaintext to jargon or the method of changing a confidential file to jargon in order to prevent unauthorized persons from gaining access to confidential message. A Message is the transfer of information from the sender to the receiver through a particular medium. Encryption is the most effective process for achieving data security.
Mente e Cuore : Clinica psicologica della malattia cardiaca = Mind and heart : Psychological Clinic of Heart Disease
Recent data has shown that there is a relationship between psychological conditions and heart disease. Furthermore, psychological interventions on patients with coronary heart disease (CHD) can reduce heart risk and improve their quality of life. This volume, which is the result of collaboration with the most committed international researchers in the field of clinical psychology and health applied to heart disease, presents an updated and complete overview of scientific research in this area. The first part of the volume presents the psychological pictures and relational aspects associated with heart disease with a particular focus on personality traits. The second part illustrates the psychological interventions in cardiac rehabilitation that research has shown to be effective in reducing cardiac risk. This text can be a useful reference to the practice of doctors, psychologists and health professionals who want to understand and deepen the link between heart disease and psychological aspects.
Menopause
As people live longer, women are spending most of their lives in menopause, affected by a variety of estrogen-related conditions such as osteoporosis, cognitive and cardiovascular decline, increased risk of breast cancer and other symptoms that decrease the overall quality of life. Unfortunately, hormonal therapy was found to be less effective in decreasing the severity of some of these conditions than previously thought and may actually increase the risk of cancer. The aim of this research was to put a spotlight on natural treatments for menopause like changing life style and herbal medicines.
Membrane Trafficking in Viral Replication
The ability of viruses to exploit cellular functions for their own ends makes them highly effective pathogens and exquisite experimental tools. Work with viruses underpins much of our current understanding of molecular cell biology and related fields. Each of the eight chapters in this volume deals with a specific aspect of viral interactions with cellular membranes. These include chapters on viral entry, viral membrane fusion, viral membrane protein synthesis and transport, viral replication, viral interactions with cytoskeletal systems and the nucleus, the trafficking of viral membrane proteins and viral perturbation of host cell protein trafficking. These chapters should provide both an overview of cellular membrane trafficking mechanisms and viral interactions with these systems, as well as reviews of the current state of each of the fields.
Mediterranean Island Landscapes : Natural and Cultural Approaches
Mediterranean islands exhibit many similarities in their biotic ecological, physical and environmental characteristics. There are also many differences in terms of their human colonization and current anthropogenic pressures. This book addresses in three sections these characteristics and examines the major environmental changes that the islands experienced during the Quaternary period. The first section provides details on natural and cultural factors which have shaped island landscapes. It describes the environmental and cultural changes of the Holocene and their effects on biota, as well as on the current human pressures that are now threats to the sustainability of the island communities. The second section focuses on the landscapes of the largest islands namely Sicily, Sardinia, Corsica, Cyprus, Crete, Malta and the Balearics. Each island chapter includes a special topic reflecting a particular characteristic of the island. Part three presents strategies for action towards sustainability in Mediterranean islands and concludes with a comparison between the largest islands.
Medicinal Plants for Holistic Health and Well-Being
Medicinal Plants for Holistic Health and Well-Being discusses, in depth, the use of South African plants to treat a variety of ailments, including tuberculosis, cancer, periodontal diseases, acne, postmacular hypomelanosis, and more. Plants were selected on the basis of their traditional use, and the book details the scientific evidence that supports their pharmacological and therapeutic potential to safely and effectively treat each disease. Thus, this book is a valuable resource for all researchers, students and professors involved in advancing global medicinal plant research
Medicinal plants and antimicrobial therapies
Serves as an excellent comprehensive material covering the current understandings and updates on antimicrobial resistance (AMR) and the use of medicinal plant resources for tackling it. Chapters cover important aspects of AMR and strategies to address this threatening issue with medicinal plants and their resources. One health perspectives for addressing AMR have been presented for the readers. Antimicrobial medicinal plant therapeutic resources including crude extracts, active fractions, pure molecules and essential oils, besides using them as functionalizing agents for nano-antimicrobials have been covered. Further, plant endophytes as a source of antimicrobial compounds have been discussed. Chapters cover both the bactericidal as well as resistance-reversal (or potentiating/ combinatorial therapies) potencies of medicinal plant resources. The book also focuses on how medicinal plant resources effectively target major determinants of AMR.
Medicinal Chemistry and Pharmacological Potential of Fullerenes and Carbon Nanotubes
Medicinal Chemistry and Pharmacological Potential of Fullerenes and Carbon Nanotubes features important insights into the applications of fullerenes and carbon nanotubes. It discusses the fullerene and nanotubes derivatives which are effective against viruses, cells, and bacteria and those which are able to interact and inhibit certain enzymes. Also covered in this book are the formation of complex structures between biologically active molecules and carbon materials. Furthermore, the application of fullerenes in certain medical therapies is explored, including the very recent discovery of new bio-compatible media which could be used as carriers in the delivery of fullerenes in vivo. An additional topic of this text is the formation of hybrids between nanotubes and biological molecules and their use as chemical sensors.
Medication problems and consequences due to the misuse of chronic drugs
All medicines can cause harm as well as benefit. Without systematic scientific evidence of benefit, no harmful effect, however rare, is worth the risk. This message is hardly revolutionary; it is one of the key principles of drug regulation Across all care environments, pharmacists play an essential role in the care of people who use and misuse of drug Medication history errors potentially clinically important, Improved physician training, accessible community pharmacy databases and closer teamwork between patients, physicians and pharmacists could reduce the frequency of these errors.
Medical Pharmacology and Therapeutics
Provides all the information medical and healthcare students need throughout their degree programme and beyond, including for professional qualifications such as the PSA. This all-round textbook covers basic pharmacology through to drug prescribing in clinical contexts, covering the pathogenic mechanisms of disease; drug actions, side effects, and the therapeutic principles of drug use. It takes a helpful systems-based approach that orders information according to body systems and disease areas, rather than by drug class. Now in its sixth edition, the book has been fully updated to include latest scientific understanding of drug action and administration and current best practice in prescribing medications, informed by the latest national guidelines.
