الصفحة 21
الصفحة 21
Habitats and Biota of the Gulf of Mexico : Before the deepwater horizon oil spill ; Vol.2 : Fish resources, fisheries, sea turtles, avian resources, marine mammals, diseases and mortalities
The Gulf of Mexico is an open and dynamic marine ecosystem rich in natural resources but heavily impacted by human activities, including agricultural, industrial, commercial and coastal development. Nutrients and pollutants from coastal communities and dozens of rivers flow into the Gulf, including material from the Mississippi River watershed, which drains over one third of continental United States. The Gulf of Mexico has been continuously exposed to petroleum hydrocarbons for millions of years from natural oil and gas seeps on the sea floor, and more recently from oil drilling and production activities located in the water near and far from shore. Major accidental oil spills in the Gulf are infrequent; two of the most significant include the Ixtoc I blowout in the Bay of Campeche in 1979 and the Deepwater Horizon Oil Spill in 2010.
Habitats and Biota of the Gulf of Mexico : Before the deepwater horizon oil spill ; Vol.1 : Water quality, sediments, sediment contaminants, oil and gas Seeps, coastal habitats, offshore plankton and benthos, and shellfish
The Gulf of Mexico is an open and dynamic marine ecosystem rich in natural resources but heavily impacted by human activities, including agricultural, industrial, commercial and coastal development. Nutrients and pollutants from coastal communities and dozens of rivers flow into the Gulf, including material from the Mississippi River watershed, which drains over one third of continental United States. The Gulf of Mexico has been continuously exposed to petroleum hydrocarbons for millions of years from natural oil and gas seeps on the sea floor, and more recently from oil drilling and production activities located in the water near and far from shore. Major accidental oil spills in the Gulf are infrequent; two of the most significant include the Ixtoc I blowout in the Bay of Campeche in 1979 and the Deepwater Horizon Oil Spill in 2010.
Guidebook to carbon neutrality in China : Macro and industry trends under new constraints
The book offers a comprehensive analysis of how the pursuit of carbon neutrality may influence the development of China's economy, and the country's biggest industries, while foreseeing the likely changes in people's lifestyles.
Guanxi and Business Strategy : Theory and Implications for Multinational Companies in China
Guanxi and Business Strategy" elaborates upon a topic of paramount importance to both academic scholars and managers doing business with China: the impact of personal relationships (guanxi) on business affairs. In the Chinese cultural and socio-economic environment, how are the ubiquitous practices of guanxi to be considered in entrepreneurial strategies,Rather than explaining the emergence of guanxi and its persistence – in spite of the existence of a market economy – with Confucianism, the author applies the phenomenon to the methodology of New Economic Sociology. By integrating guanxi into a business context, he shows that the commercial utilization of guanxi with suppliers, customers, competitors and authorities yields significant sustainable competitive advantages.
Growth, Differentiation and Sexuality
Since publication of the first edition of Volume I in 1994, the field of fungal biology has developed tremendously, mainly through the advancement of various molecular techniques and international fungal genome projects. To accommodate these developments, the second edition has been completely updated. Six chapters have been revised by former authors, others by newly recruited experts, and also novel subjects, emerged in more recent years, have been added to the book. Leading scientists in the field have compiled comprehensive overviews as well as latest results obtained from cytological, genetic and molecular studies. Topics include: cellular and colony growth of fungi, cellular fusion and incompatibility, senescence and programmed cell death, environmental and physiological signalling in differentiation processes, asexual and sexual reproduction, mitosis and meiosis of various types of fungi. Both parallels and differences become visible between individual fungi as well as between fungal classes.
Growth Dynamics of Conifer Tree Rings : Images of Past and Future Environments
Each tree ring contains an image of the time when the ring formed, projected onto the ring's size, structure, and composition. Tree rings thus are natural archives of past environments, and contain records of past climate. While dendrochronologists have investigated the impact of climate on tree-ring growth by empirical–statistical methods, this volume presents a process-based model complementing previous approaches. Basic ideas concerning the biology of tree-ring growth and its control by environmental factors are treated, especially for conifers. The use of the model is illustrated by means of several examples from widely differing environments, and possible future directions for model development and application are discussed. The volume provides an improved mechanistic basis for the interpretation of tree rings as records of past climate. It advances process understanding of the large-scale environmental control of wood growth. As forests are the main carbon sink on land, the results are of great importance for all global change studies.
Growing Plantation Forests
Plantation forests are grown to supply wood and to provide environmental benefits, such as waste disposal, rehabilitation of degraded sites, enhancement of regional biodiversity and reduction of logging in native forests. In a highly readable fashion, this book describes the scientific principles which are used throughout the world to ensure rapid, healthy plantation growth. It is written for a world-wide audience, from forestry professionals and scientists through to small plantation growers, to describe how plantations may be grown responsibly and profitably.
Groupware : design, implementation, and use ; Vol. 4154 ; 12th International Workshop, CRIWG 2006, Medina del Campo, Spain, September 17-21, 2006, Proceedings
Topical sections include collaborative applications and group interaction, group awareness, computer supported collaborative learning, languages and tools supporting collaboration, groupware development frameworks and toolkits, collaborative workspaces, web-based cooperative environments, mobile collaborative work, and collaborative design.
Groundwater Recharge from Run-off, Infiltration and Percolation
This book first discusses the recharge fluxes relating both to the quantity and quality of groundwater. In order to face the threats to the water supply and to be able to maintain a sustainable water management policy, detailed knowledge is needed in between others on the surface to subsurface transformation link in the water cycle. Secondly, the presentation and comparison of both the traditional and modern approach to determine groundwater recharge is discussed. The traditional approach to determine groundwater recharge, is based on water balance estimates and hydraulic considerations, which yield instantaneous values at best but do not integrate the totality of recharge pathways in time and space. In contrast, environmental tracers do integrate these factors. Finally, the fate of groundwater recharge in the subsurface by hydraulic and geologic means is discussed in detail, in order to stimulate adapted groundwater management strategies and to better assess consequences of climate changes on groundwater resources as a whole.
Groundwater overexploitation in the North China Plain : A path to sustainability
Over-pumping of aquifers is a worldwide problem, mainly caused by agricultural water use. Among its consequences are the falling dry of streams and wetlands, soil subsidence, die-off of phreatophytic vegetation, saline water intrusion, increased pumping cost and loss of storage needed for drought relief.
Groundwater Management in Asian Cities : Technology and Policy for Sustainability
The number of city dwellers who do not have access to piped water and rely on groundwater is also increasing. In many Asian cities, groundwater is not only the source of domestic water but also an important resource for industrial development, making better management of groundwater resources essential for sustainable development. Because groundwater is easier to access and costs less than water from piped systems, groundwater abstraction cannot be easily regulated. Policies for groundwater management adopted in Japan and other Asian countries are compared, and technologies for efficient use of groundwater are elucidated. Groundwater contamination is also a serious problem that exacerbates water scarcity in Asian cities. Case studies illustrate the cause and consequences of naturally occurring contaminants such as arsenic and fluoride, and groundwater contamination due to anthropogenic contaminants is described. Also discussed are technologies for treating contaminated groundwater to reduce the health risks of drinking contaminated groundwater.
Groundwater Geophysics : A Tool for Hydrogeology
Geophysical techniques can map the underground conditions apart from boreholes. The use of these methods for hydrogeological applications is demonstrated for mapping of porous and structural aquifers, determination of groundwater quality (mineralization), assessment of hydraulic properties, determination of aquifer vulnerability and mapping of contaminated sites. Additionally, a description of geophysical techniques used for groundwater studies is given including seismics, resistivity methods, magnetics, ground penetrating radar and NMR (nuclear magnetic resonance).
Groundwater Geochemistry : A Practical Guide to Modeling of Natural and Contaminated Aquatic Systems
Numerical groundwater flow, transport, and geochemical models are important tools besides classical deterministic and analytical approaches. Solving complex linear or non-linear systems of equations, commonly with hundreds of unknown parameters, is a routine task for a PC. Modeling hydrogeochemical processes requires a detailed and accurate water analysis, as well as thermodynamic and kinetic data as input. Thermodynamic data, such as complex formation constants and solubility-products, are often provided as databases within the respective programs. However, the description of surface-controlled reactions (sorption, cation exchange, surface complexation) and kinetically controlled reactions requires additional input data. Unlike groundwater flow and transport models, thermodynamic models, in principal, do not need any calibration.
Groundwater Geochemistry : A Practical Guide to Modeling of Natural and Contaminated Aquatic Systems
Offers beginners and advanced modellers alike a minimum theoretical background and a focus on the practical solution of geochemical modeling with PHREEQC. This book covers the possibility to use PITZER equation and the CD music concept within the version of PHREEQC.
Groundwater Dynamics in Hard Rock Aquifers : Sustainable Management and Optimal Monitoring Network Design
Groundwater is of utmost importance in the arid and semi-arid environment. The areas in such regions are forced to face a variety of problems regarding groundwater as it is the main source of water no matter for any use viz., drinking, domestic, irrigation or industrial particularly for the rural population. The main challenges in hard rock areas in the semi-arid region are the water conservation, management and planning of the water resources. This is further complicated with several complexities of the geological formation. With the semi-arid environment, complex geological settings and over shooting stresses, the aquifer system becomes extremely fragile and sensitive. In spite of a good amount of research in this field, it is still needed to understand the behaviour of such complex system precisely and also apply the result in reasonably larger scales.
Groundwater and Ecosystems
Groundwater Dependent Ecosystems (GDEs) frequently exhibit rich biological diversity and can provide enormous economic wealth. In recent years, GDEs in many industrialized countries have shown signs of serious degradation, primarily the result of groundwater abstraction and pollution. Many such systems, including a number of well documented cases in Eastern Europe, are no longer sustainable. As a consequence, the conservation and sustainable management of GDEs has emerged as one of the most urgent environmental research priorities of our time. A large percentage of the world’s population lives in cities and either depends on, or is affected in some way, by groundwater. Moreover, groundwater has become a very important and complex issue that attracts the interest of many diverse stakeholders. Many problems related to groundwater and ecosystems are shared by countries throughout the world and there is growing recognition that much can be gained by co-operation on an international scale.
Groundwater : Resource evaluation, augmentation, contamination, restoration, modeling and management
The demand for water resources is increasing day by day due to ever increasing population, mostly from developing countries. This has resulted in abstracting more water from the subsurface stratum and forcing the water managers to manage the limited groundwater resources in a more scientific way, which in turn needs a more sophisticated way of assessing the underground resource and manage it optimally.
Grid-based problem solving environments ; IFIP TC2/WG2.5 Working Conference on Grid-based problem solving environments : Implications for development and deployment of numerical software, July 17-21, 2006, Prescott, Arizona, USA
The IFIP series publishes state-of-the-art results in the sciences and technologies of information and communication. The principal aim of the IFIP series is to encourage education and the dissemination and exchange of information about all aspects of computing.
Grid Computing : Software Environments and Tools
The book provides: • Discussion of software engineering and modelling tools for the Grid • Analysis of issues inherent in enabling distributed computing across the Grid • Consideration of the software engineering support necessary for managing Grid applications • Proposal of a posited software engineering lifecycle to support application development for Grid Environments (along with associated tools). • Identification of novel concepts, methods and tools within Grid computing which can be put to work in the context of existing experiments and application case studies
Greening the Supply Chain
Since the Rio summit in 1992, the paradigm of corporate environmental responsibility has gradually and consistently extended beyond complying with increasingly stringent environmental regulation and taking up the proactive initiatives of a few world-class companies. Research indicates that the business and financial performance of companies may depend directly on socially and environmentally responsible business practices. Many world-class companies now realize that customers and other stakeholders do not distinguish between a company and its suppliers. As a result, greening the supply chain is an innovative idea which is fast gaining attention in the industry.
