Suchergebnisse

Intro -- Contents -- Preface -- Radiological Impact in Forest Ecosystems -- Abstract -- Introduction -- General Concepts about Ionizing Radiations -- Sources of Radionuclides in the Environment -- Radiological Protection of Human in Forest Ecosystems -- Radiological Protection of the Environment -- Dose Rates to Organism -- Conclusion -- Acknowledgments -- References -- Litter Chemistry, Decomposition and Its Effects on Soil Biogeochemistry of Forest Ecosystems -- Abstract -- 1. Introduction -- 2. Litter Decomposition and Soil Organisms -- 3. Chemical Changes during Litter Decomposition -- 4. Litter Chemistry -- 4.1. Chemistry of Lignin -- 4.1.1. Lignin Effects on Soil Biogeochemistry of Forest Ecosystems -- 4.2. Chemistry of Phenolics -- 4.2.1. The Effects of Phenols on Soil Biogeochemistry of Forest Ecosystems -- 4.3. Chemistry of Tannins -- 4.3.1. Effects of Tannin on Soil Biogeochemistry of Forest Ecosystems -- 4.4. Chemistry of Carbohydrates (Cellulose and Hemicelluloses) -- 4.4.1. Effects of Cellulose and Hemicelluloses on Soil Biogeochemistry of Forest Ecosystems -- 4.5. The Chemistry of Nitrogen -- 4.5.1. Effects of Nitrogen on Soil Biogeochemistry of Forest Ecosystems -- Conclusion -- Acknowledgments -- References -- Impact of Forest Management Practices After Windstorm and Wildfire in Spruce Forest on Soil Nematode Communities -- Abstract -- 1. Introduction -- 1.1. Soil Nematodes as Bioindicators of Soil Conditions -- 2. About Our Research -- 2.1. Windstorm and Wildfire in Spruce Forest Tatra National Park Slovakia -- 2.2. Effect of Windstorm and Wildfire in Spruce Forest on Soil Nematode Communities in Different Forest Management Practices -- Conclusion -- Acknowledgments -- References -- Biographical Sketch -- Biographical Sketch -- Organization of Boreal Forests in Insular Volcanic Landscapes of North-West Pacific -- Abstract

Cover -- Title -- Copyright -- Contents -- What Are Ecosystems? -- Parts of an Ecosystem -- Biodiversity and Balance -- Food Chains and Food Webs -- A Look at a Desert Ecosystem -- A Look at a Grassland Ecosystem -- A Walk in a Tropical Rain Forest -- Other Forest Ecosystems -- The Treeless Tundra -- Saving Earth's Ecosystems -- Glossary -- Index -- Web Sites -- Back Cover.

Intro -- AQUATIC ECOSYSTEMS INFLUENCES, INTERACTIONS AND IMPACT ON THE ENVIRONMENT -- AQUATIC ECOSYSTEMS INFLUENCES, INTERACTIONS AND IMPACT ON THE ENVIRONMENT -- Library of Congress Cataloging-in-Publication Data -- CONTENTS -- PREFACE -- Chapter 1 SEAGRASS MEADOWS ON THE NORTHEAST COAST OF BRAZIL: HABITAT INFLUENCE ON THE SPATIAL AND SEASONAL VARIATIONS -- ABSTRACT -- INTRODUCTION -- NORTHEAST COAST OF BRAZIL -- General Features -- Economic Aspects and Impacts on the Seagrass Meadows of the Northeast Region of Brazil -- Seagrass Distribution along the Northeast Coast of Brazil -- SEAGRASS VARIATIONS ALONG THE NORTHEAST COAST OF BRAZIL -- Influence of a Gradient of Exposure on Seagrasses in Ubatuba River, Piauí -- Substrate Influence on Halodule wrightii Meadows along the Ceará Coast -- Seasonal Variations of Halodule wrightii at Goiabeiras Beach -- Seasonal and Spatial Variations of Halophila baillonis in the "Barra de Mamanguape" Environmental Protection Area -- Bathymetric and Seasonal Influences on a Halodule wrightii Meadow on Itamaracá Island -- Bathymetric Influence on Halodule wrightii in the "Costa dos Corais" Environmental Protection Area -- DISCUSSION -- ACKNOWLEDGMENTS -- REFERENCES -- BIOGRAPHICAL SKETCH -- Chapter 2 MICROALGAE AS WATER QUALITY INDICATORS: AN OVERVIEW -- ABSTRACT -- INTRODUCTION -- A SHORT HISTORY OF THE BIOLOGICAL INDICATORS -- MICROALGAE AS INDICATORS -- LIFE STRATEGIES AND FUNCTIONAL GROUPS OF PHYTOPLANKTON -- CONCLUSION -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 3 MIXING ZONE ANALYSIS OF SURFACE BRINE DISCHARGES IN COASTAL WATERS -- ABSTRACT -- INTRODUCTION -- CORMIX MIXING ZONE MODEL -- SCENARIO I: POSITIVELY BOUYANT DISCHARGE -- SENSITIVITY ANALYSIS OF CORMIX3 -- SCENARIO II: NEGATIVELY BOUYANT DISCHARGE -- SENSITIVITY ANALYSIS OF DCORMIX -- CONCLUSION -- ACKNOWLEDGMENTS -- REFERENCES.

The purpose of this study was to find out the progress in the research of technology ecosystems and digital business ecosystems and to combine that information for business purposes by the utilization of information about business ecosystems. The need for this information emerged at the Department of Information Processing Science in the context of European Union research projects. The information gained is expected to assist to increase possibilities both for the research and for the personal competence to work with enterprises in new kinds of technology environments. The main research question to be answered in this study was: How are technology ecosystems and digital business ecosystems for business perceived and approached in the literature? Instead of a systematic review, a method of systematic mapping was selected to structure the selected research areas for getting a broad overview over the two streams of research, and for identification the possible research evidence. To answer the main question the following subquestions were set for both systematic mapping studies: RQ1 Which journals include papers on technology ecosystems / digital business ecosystems for business? RQ2 What are the most investigated topics of technology ecosystems / digital business ecosystems and how have these changed over time? RQ3 What are the most frequently applied research approaches and methods, and in what study context? Based on structuring the selected research areas according to the set subquestions, broad overviews were established presenting findings. Based on the identification and evaluation of publication channels the forums for discussion were exposed. Based on the identification of topics and their evolution the trends of discussion were exposed. Based on the identification of research types the non-empirical and the empirical research were exposed. Found research evidence and found solution proposals (from non-empirical research) were discussed and the need for further research was considered. The main contribution of this mapping study was the identification of different perceptions of two vague concepts, technology ecosystem and digital business ecosystem, and notion of their convergence and interlace over time (especially in relation to the exposed scarce research evidence). The recommendations for future research were set based on the found empirical research and solution proposals, as well as limitations of this study.

Europe is investing significant resources in research and technology development of 5G networks through the 5G Private Public Partnership (5G PPP). In addition to various scientific and technological topics, the effort focuses on societal and business challenges creating value with 5G networks. This white paper discusses 5G ecosystems as a prerequisite for value creation for and by the engaged stakeholders and return of investment as a potential award for the engagement. A clear identification of 5G stakeholders supports the creation and evolution of the 5G ecosystems by characterising the potential role that each actor can assume. The identified stakeholder groups include 5G industry and research organisations, vertical sectors' firms, complementor firms, as well as organisations and associations of providers and consumers active in the value network representing the interests of a larger collection of firms and organisations. Those stakeholder groups include both small and medium enterprises (SME) and larger companies, and whenever relevant academic institutions. In addition, standards organisations, open-source organisation and policy makers are an inherent part of the 5G ecosystems, as are governmental agencies at regional, national and European level that support the creation of value in the 5G ecosystems though funding or procurement of innovations. In general, an ecosystem is a complex network of interacting cross-industry actors who work together and are dependent on each other to define, build and deliver value creating customer solutions. The depth and breadth of potential collaborations among actors defines the ecosystem with each actor delivering a piece of the solution or a contribution to the strength of the ecosystem. The power of the ecosystem comes from the fact that no single actor needs to own or operate all components of a solution, with the value of the ecosystem being greater than the combined value of each actor. A 5G ecosystem can be decomposed into two main aspects: (a) the network ...

"This title will introduce readers to woodland ecosystems, the plants and animals that thrive there, its climate, its food web, any threats to it, and conservation efforts. Readers will also learn about the most well known woodlands and their unique characteristics."--

"This title will introduce readers to rain forest ecosystems, the plants and animals that thrive there, its climate, its food web, any threats to it, and conservation efforts. Readers will also learn about the most well known rain forests and their unique characteristics."--

"This title will introduce readers to coral reef ecosystems, the plants and animals that thrive there, its climate, its food web, any threats to it, and conservation efforts. Readers will also learn about the most well known coral reefs and their unique characteristics."--Publisher's website