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Zyklus und Serie - Van Goghs Ansichten des ummauerten Feldes in Saint-Rémy

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ISBN: 9783863953959 Year: DOI: 10.17875/gup2018-1120 Language: German
Publisher: Universitätsverlag Göttingen
Subject: Arts in general
Added to DOAB on : 2019-01-17 11:41:37

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A few weeks before van Gogh admitted himself into a mental hospital in Saint-Rémy in spring 1889 he had written to Gauguin that he wanted to create a “consolatory art for distressed hearts”. From his bedroom in the clinic he overlooked an enclosed wheat field. Over the course of a year the seasonal changes inspired Van Gogh to paint a cycle of this wheat field, thereby seeing it as an allegorical representation of the fate of human life, which comforted him.

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van Gogh --- cycle --- wheat field

Designing Sustainable Technologies, Products and Policies

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ISBN: 9783319669809 9783319669816 Year: Volume: 1 Pages: 520 DOI: https://doi.org/10.1007/978-3-319-66981-6 Language: English
Publisher: Springer Nature
Subject: Environmental Engineering
Added to DOAB on : 2019-09-10 16:32:12
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This open access book provides insight into the implementation of Life Cycle approaches along the entire business value chain, supporting environmental, social and economic sustainability related to the development of industrial technologies, products, services and policies; and the development and management of smart agricultural systems, smart mobility systems, urban infrastructures and energy for the built environment. The book is based on papers presented at the 8th International Life Cycle Management Conference that took place from September 3-6, 2017 in Luxembourg, and which was organized by the Luxembourg Institute of Science and Technology (LIST) and the University of Luxembourg in the framework of the LCM Conference Series.

Microbial Connections Between the Subsurface Sulfur Cycle and Other Elemental Cycles

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889456529 Year: Pages: 213 DOI: 10.3389/978-2-88945-652-9 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Microbiology --- Geography
Added to DOAB on : 2019-01-23 14:53:43
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Sulfur has many redox states and is a major metabolite in suboxic and anaerobic environments including, but not restricted to, marine and marginal marine sediments, the water column of oxygen minimum zones, salt marshes and oil wells. Microbially mediated redox cycling of sulfur typically comprises dissimilatory sulfate reduction (MSR), sulfide reoxidation, disproportionation and the oxidation and reduction of sulfur redox intermediates. These processes contribute to the degradation of organic matter, link the cycles of sulfur and carbon, control the production and consumption of methane and are critical for the long term budget of O2 in the atmosphere. Microbial and abiotic processes at redox interfaces also connect the sulfur cycle to the redox cycles of nitrogen, iron and other elements, producing distinctive geochemical and molecular signatures. Studies that couple microbiology with stable isotope geochemistry have informed interpretations of microbial sulfur cycling in modern and past environments. Laboratory-based studies and models of MSR have sought to understand the physiological and environmental controls of the magnitude of sulfur isotope fractionation. The fractionations of stable sulfur and oxygen isotopes during MSR are also used to track enzymatic activity during MSR and processes that oxidize sulfide in the presence of environmental oxidants. Outstanding questions in the field concern the importance of oxidative processes within the natural environment, the delivery of oxidants and carbon sources to the zones of sulfate reduction and the ability to detect or reconstruct oxidative processes from the chemical, isotopic, metagenomic, transcriptomic, proteomic and metabolomics profiles in the environment. Recent studies have emphasized the complex connections between sulfur and methane, iron, nitrogen and other elements. These links may involve the redox cycling of species that occur at concentrations difficult to detect by standard geochemical techniques or that are cycled at very rapid rates (cryptic cycles). Of particular interest is the use of isotope geochemistry to quantify links among various electron acceptors, including sulfate, ferric iron, and nitrate, during the anaerobic methane oxidation. For example, recent geochemical measurements have hinted that microbial sulfate reduction coupled to organic matter oxidation is mechanistically different to when sulfate reduction is coupled to methane oxidation. Recent studies have also suggested a possible contribution of a number of previously uncultured microbial groups in sulfur cycling in sulfidic environments, inspiring further studies of these organisms and their partnerships in anaerobic environments. This Research Topic highlights studies of microbial interactions, processes and communities that couple the sulfur cycle to the cycles of other elements in aphotic environments.

Sequence Analysis and Related Approaches

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Book Series: Life Course Research and Social Policies ISBN: 9783319954202 Year: Pages: 298 DOI: 10.1007/978-3-319-95420-2 Language: English
Publisher: Springer Nature
Subject: Sociology --- Economics
Added to DOAB on : 2020-02-04 11:21:19
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This open access book provides innovative methods and original applications of sequence analysis (SA) and related methods for analysing longitudinal data describing life trajectories such as professional careers, family paths, the succession of health statuses, or the time use. The applications as well as the methodological contributions proposed in this book pay special attention to the combined use of SA and other methods for longitudinal data such as event history analysis, Markov modelling, and sequence network. The methodological contributions in this book include among others original propositions for measuring the precarity of work trajectories, Markov-based methods for clustering sequences, fuzzy and monothetic clustering of sequences, network-based SA, joint use of SA and hidden Markov models, and of SA and survival models. The applications cover the comparison of gendered occupational trajectories in Germany, the study of the changes in women market participation in Denmark, the study of typical day of dual-earner couples in Italy, of mobility patterns in Togo, of internet addiction in Switzerland, and of the quality of employment career after a first unemployment spell. As such this book provides a wealth of information for social scientists interested in quantitative life course analysis, and all those working in sociology, demography, economics, health, psychology, social policy, and statistics. ; Provides new perspectives and methods for sequence analysis Focusses on the link between sequence analysis and other methods for longitudinal data, especially event history analysis and Markov models Stresses the complementarity of sequence analysis and other models for longitudinal data Applications of sequence analysis in a whole range of different domains

The Use of Remote Sensing in Hydrology

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ISBN: 9783038429098 9783038429104 Year: Pages: X, 248 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Environmental Sciences
Added to DOAB on : 2018-06-01 11:22:11
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Remotely sensed data are nowadays commonly used for regional/global monitoring of hydrological variables including soil moisture, rainfall, water levels, flood extent, evapotranspiration or land water storage, as well as the forcing, calibration and assimilation into hydrodynamic, hydrological and hydrometeorological models. In the years to come, recent and future satellite sensors, some of them specifically designed for hydrological purposes, will provide systematic observations of hydrological parameters (e.g., surface and sub-surface storage and flux) at high spatial and temporal resolutions. This will offer new applications for the hydrological community. This book presents reviews and recent advances of general interest regarding the use of remote sensing for hydrology. The chapters are related to any hydrological reservoir (e.g., surface storage, soil moisture, groundwater, etc.) or flux (e.g., rainfall, evapotranspiration, discharge, etc.), the integration of satellite data into hydrological models, and the improvements to hydrology that can be expected from future satellite missions.

The Austrian Business Cycle in the European Context

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Book Series: Forschungsergebnisse der Wirtschaftsuniversitaet Wien ISBN: 9783631576076 Year: Pages: 227 DOI: 10.3726/b13975 Language: English
Publisher: Peter Lang International Academic Publishing Group
Subject: Economics
Added to DOAB on : 2019-01-15 13:32:22
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Dating business cycle turning points is still an important task for economic policy decisions. This study does this for the Austrian economy for the period between 1976 and 2005, using only quarterly national accounts data of Austria, Germany and the euro area. Three different filtering methods are applied: first-order differences, the Hodrick-Prescott filter, and the Baxter-King filter. To all of them, two different methods of determining the business cycle are applied: the ad-hoc determination of the business cycle and a dynamic factor model, taking into account the common variations of Austria, the euro area and the German business cycle movements. The results of both methods are dated by the Bry-Boschan algorithm in order to locate peaks and troughs of the cycle. The results are interpreted and compared to already exiting studies on the euro area and the Austrian business cycle.

Simulation von Fahrspielen und Energieflüssen in Nahverkehrssystemen

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Book Series: Karlsruher Schriftenreihe Fahrzeugsystemtechnik / Institut für Fahrzeugsystemtechnik ISSN: 18696058 ISBN: 9783731507406 Year: Volume: 66 Pages: XXX, 323 p. DOI: 10.5445/KSP/1000077162 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-28 18:37:01
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For ecological und economic reasons, special attention is paid to the energy balance of rail-bound, local, direct current-based transport systems. With the tram and urban railway network of Karlsruhe being used as an example, 16 simulation scenarios with different measures for energy optimization are analysed in a coupled computation of driving cycles and energy flows.

Rainwater Harvesting: Quantity, Quality, Economics and State Regulations_Book

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ISBN: 9783038427148 9783038427131 Year: Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Environmental Sciences
Added to DOAB on : 2018-01-24 14:14:42
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Rainwater harvesting (RWH) is the most popular alternative water source in many urban, peri-urban, and rural areas. Although rainwater is fresh in nature, it gets polluted from atmospheric contaminants, roof catchments, and the RWH system itself. The research questions which are the most relevant to RWH system include the optimum rainwater tank size for a given location and set of users, water quality from a RWH system, financial viability of a RWH system, and state regulations on the use of water from a RWH system. You are invited to submit a technical paper to this Special Issue of Water on these aspects of a RWH system.

Vitamin K and Vitamin K-Dependent Proteins in Relation to Human Health

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ISBN: 9783038428312 9783038428329 Year: Pages: X, 192 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Nutrition and Food Sciences
Added to DOAB on : 2018-04-17 12:23:54
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Vitamin K comprises a group of highly lipophilic molecules that possess a common 2-methyl-1, 4-naphthoquinone nucleus and a variable polyisoprenoid side chain at the 3-position that can vary in both length and degree of saturation. In nature, these forms are found as a single plant form (phylloquinone or vitamin K1) and a series of bacterial forms (menaquinones or vitamin K2). Vitamin K acts as a cofactor for a microsomal enzyme, γ-carboxyglutamyl carboxylase (GGCX), that serves to transform specific peptide-bound glutamate residues found in certain specialized proteins to γ-carboxyglutamate (Gla). This posttranslational protein modification is the only firmly established biochemical function of vitamin K. The resultant vitamin K-dependent (VKD) proteins, or Gla proteins, are diverse in both structure and function and are found in many cell and tissue types. The best-known example of the health role of vitamin K-mediated protein γ-carboxylation is in the synthesis of several VKD blood coagulation proteins, which are essential for the maintenance of extracellular haemostasis. An overt deficiency of vitamin K results in bleeding and although rare in most populations, vitamin K deficiency bleeding (VKDB) in early infancy has potentially devastating and fatal consequences because bleeding commonly occurs within the brain. For this reason it is recommended that all newborn infants should receive vitamin K prophylaxis. On the other hand, the deliberate lowering of circulating VKD-coagulation factors by the therapeutic administration of vitamin K antagonists (VKA) such as warfarin is used to treat and prevent thrombotic disorders. The functions of most non-coagulation Gla proteins remain uncertain, but are suspected to play roles in processes as diverse as bone and cardiovascular mineralization, vascular integrity, energy metabolism, immune response, brain metabolism, and in cellular growth, survival, and signalling. For the most part, extrapolations of the cellular properties of extrahepatic Gla proteins to tangible health benefits are unclear or fuzzy, as are the health consequences of their undercarboxylation. However, there is evidence that higher nutritional intakes of vitamin K are required to enable maximal γ-carboxylation of certain extrahepatic Gla proteins, such as osteocalcin and matrix Gla protein (MGP). Osteocalcin and MGP currently represent the best-studied extrahepatic Gla proteins with respect to their putative roles in bone and cardiovascular health, respectively. In addition, osteocalcin may play a role in regulating energy metabolism. Much current interest focuses on the role of MGP as an inhibitor of vascular mineralization, particularly in renal disease and in patients taking VKA. Interestingly, although VKA have been in clinical use for decades, recent evidence suggests that they may cause unintended health consequences by disrupting the function of MGP resulting in calcification and loss of the functional integrity of the vessel wall. Apart from the role of vitamin K in γ-carboxylation there is evidence that some forms, particularly menaquinone-4 (MK-4), have a direct influence on cellular functions.This Special Issue of Nutrients focuses on advances that extend our knowledge of the biochemical functions and health roles played by both the micronutrient vitamin K and its target Gla proteins. The scope of potential topics is wide and may include studies in population and patient groups, animal models and at the cellular level. Examples include the presentation, diagnosis, incidence, causes, and prevention of deficiency syndromes, of which the most obvious is bleeding in infancy, but also extends to other putative roles of vitamin K such as in bone and cardiovascular health. In trying to define extrahepatic functions of vitamin K it is important to obtain evidence of pathophysiological signatures that may derive from chronic suboptimal vitamin K intakes or as a consequence of vitamin K antagonists. An important related question is whether the pathophysiology can be ameliorated or prevented by judicious vitamin K supplementation. Equally important to our understanding of the human physiology of vitamin K are studies that define the relative functional importance of individual vitamers and how differences in their availability and metabolism affect their biological activity. Recent highlights in metabolism include the delineation of the importance of vitamin K epoxide reductase (VKOR) in maintaining vitamin K status and the intriguing hypothesis that its paralog VKOR-like 1 enzyme (VKORL1) may serve an antioxidant function. Another highlight illustrating the importance of metabolism to vitamin K function is the discovery that the enzyme UbiA prenyltransferase-containing domain 1 (UBIAD1) participates in the cellular conversion of phylloquinone to MK-4 with menadione as a metabolic intermediate. We invite authors to submit reviews or original research on any of the above topics.

Sponge Cities: Emerging Approaches, Challenges and Opportunities

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ISBN: 9783038972723 9783038972730 Year: Pages: 462 DOI: 10.3390/books978-3-03897-273-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Environmental Sciences
Added to DOAB on : 2018-10-18 10:04:07
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Primarily as a response to increasing flood, impacts, the Chinese Central Government launched a program to implement the Sponge City Concept in selected pilot cities across China in 2013. As a result, the Sponge City Concept is gaining ground and becoming more and more accepted by city governments. The first best practices of the pilot cities are being shared, and international exchange activities between research institutions and cities are providing guidance on the design and implementation of new concepts and technologies. However, there are still many technical, institutional, and socio-economic challenges ahead that hamper wider uptake and up-scaling in China. While the Sponge City Concept is new, the approaches and technologies involved in it, and therefore related challenges and opportunities, have been tried out in many different parts of the globe under the guise of terminologies such as water sensitive cities, Sustainable Drainage Systems, low-impact development, and ABC waters. This book aims to capture a selection of these experiences from China, as well as from other countries in both the developed and developing world, and draws lessons from these experiences relevant to the Sponge City Concept.

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