50 research outputs found
Entwicklung einer Marketingkonzeption fĂŒr die Bibliothek des ReligionspĂ€dagogischen Instituts in Karlsruhe
Gegenstand dieser Masterarbeit ist die Entwicklung einer Marketingkonzeption fĂŒr die Bibliothek des ReligionspĂ€dagogischen Instituts in Karlsruhe. Eine ausfĂŒhrliche Marktanalyse bildet die Grundlage der Konzeption, die Konkurrenten, StĂ€rken und SchwĂ€chen dieser Spezialbibliohek sowie die Nachfrage durch die Bibliotheksbenutzer untersucht. Darauf aufbauend werden Marketingziele festgelegt und Strategien hinsichtlich Marktsegmentierung, Zielmarktfestlegung und Positionierung der Bibliothek entwickelt. Hieraus resultieren VorschlĂ€ge fĂŒr eine entsprechende Produkt-, Distributions-, Kommunikations- und Preispolitik. Möglichkeiten fĂŒr das Marketingcontrolling sowie Gedanken zur Umsetzung des Gesamtkonzepts runden die Arbeit ab
Wave Propagation Through Non-Uniform Plasma
Increased energy demand has led to plans for building many new dams in the western Amazon, mostly in the Andean region. Historical data and mechanistic scenarios are used to examine potential impacts above and below six of the largest dams planned for the region, including reductions in downstream sediment and nutrient supplies, changes in downstream flood pulse, changes in upstream and downstream fish yields, reservoir siltation, greenhouse gas emissions and mercury contamination. Together, these six dams are predicted to reduce the supply of sediments, phosphorus and nitrogen from the Andean region by 69, 67 and 57% and to the entire Amazon basin by 64, 51 and 23%, respectively. These large reductions in sediment and nutrient supplies will have major impacts on channel geomorphology, floodplain fertility and aquatic productivity. These effects will be greatest near the dams and extend to the lowland floodplains. Attenuation of the downstream flood pulse is expected to alter the survival, phenology and growth of floodplain vegetation and reduce fish yields below the dams. Reservoir filling times due to siltation are predicted to vary from 106-6240 years, affecting the storage performance of some dams. Total CO2 equivalent carbon emission from 4 Andean dams was expected to average 10 Tg y-1 during the first 30 years of operation, resulting in a MegaWatt weighted Carbon Emission Factor of 0.139 tons C MWhr-1. Mercury contamination in fish and local human populations is expected to increase both above and below the dams creating significant health risks. Reservoir fish yields will compensate some downstream losses, but increased mercury contamination could offset these benefits
The potential impact of new Andean dams on Amazon fluvial ecosystems
Increased energy demand has led to plans for building many new dams in the western Amazon, mostly in the Andean region. Historical data and mechanistic scenarios are used to examine potential impacts above and below six of the largest dams planned for the region, including reductions in downstream sediment and nutrient supplies, changes in downstream flood pulse, changes in upstream and downstream fish yields, reservoir siltation, greenhouse gas emissions and mercury contamination. Together, these six dams are predicted to reduce the supply of sediments, phosphorus and nitrogen from the Andean region by 69, 67 and 57% and to the entire Amazon basin by 64, 51 and 23%, respectively. These large reductions in sediment and nutrient supplies will have major impacts on channel geomorphology, floodplain fertility and aquatic productivity. These effects will be greatest near the dams and extend to the lowland floodplains. Attenuation of the downstream flood pulse is expected to alter the survival, phenology and growth of floodplain vegetation and reduce fish yields below the dams. Reservoir filling times due to siltation are predicted to vary from 106â6240 years, affecting the storage performance of some dams. Total CO2 equivalent carbon emission from 4 Andean dams was expected to average 10 Tg y-1 during the first 30 years of operation, resulting in a MegaWatt weighted Carbon Emission Factor of 0.139 tons C MWhr-1. Mercury contamination in fish and local human populations is expected to increase both above and below the dams creating significant health risks. Reservoir fish yields will compensate some downstream losses, but increased mercury contamination could offset these benefits
Diversity Promotes Temporal Stability across Levels of Ecosystem Organization in Experimental Grasslands
The diversityâstability hypothesis states that current losses of biodiversity can impair the ability of an ecosystem to dampen the effect of environmental perturbations on its functioning. Using data from a long-term and comprehensive biodiversity experiment, we quantified the temporal stability of 42 variables characterizing twelve ecological functions in managed grassland plots varying in plant species richness. We demonstrate that diversity increases stability i) across trophic levels (producer, consumer), ii) at both the system (community, ecosystem) and the component levels (population, functional group, phylogenetic clade), and iii) primarily for aboveground rather than belowground processes. Temporal synchronization across studied variables was mostly unaffected with increasing species richness. This study provides the strongest empirical support so far that diversity promotes stability across different ecological functions and levels of ecosystem organization in grasslands
Marketing in OPL-Bibliotheken / Marketing in One Person Libraries
In times of budget restraints and limited capacities it is important to use the available resources strictly market-oriented â in other words focused on the client's needs â and with a view to the company's targets. Even for a One Person Library, a marketing concept is essential in order to optimize the work of the library. This article introduces the different stages of the marketing management process. Hereby, the analysis of strengths and weaknesses and strategic marketing planning build the core area
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Investigating the Experience of Water: A Case Study of Teaching and Learning in Elementary School Science
Limited research has been done on the implementation of experiential learning to align with science and engineering practices. This research project developed an instrumental case study to examine the efficacy of an experiential education framework for teaching and learning water science and engineering practices in the elementary science classroom. This study investigates the process of a practicing scientist mentoring a 6th grade elementary science teacher and their participation in professional development activities, strategies used for preparation and practice, classroom implementation, and the consequences of student learning with two sections of science students. Data collection and analysis of teacher background surveys, unit plans provided by the teacher, classroom and field observations, and a semi-structured interview were data sources for the study. Student evidence was collected from pre/post drawing assessments, pre/posttests, reflections, and student artifacts. The findings indicated that personal, intensive long term professional development sessions had an impact on the teacherâs practice, where she was able to use the experiential framework as a guiding principle to create an outdoor and classroom-based unit on water in Earth systems. In her practice, she was able to use the framework to create analogies to make connections between natural water filtration and classroom models, and she used an integrated approach to discuss engineering and filter design. The scientist-teacher mentorship resulted in an increase in the teacherâs confidence and ability to teach elementary science topics on water science. Studentsâ conceptual understanding of water cycle components and processes progressed over the course of the unit from atmospheric level to subsurface level interactions. Students achieved an understanding of physical properties of matter and hydrogeological concepts of permeability and porosity. Students were able to understand systems thinking and developed dynamic thinking. Implications of this study indicate that the experiential learning framework is an effective pedagogical tool for teachers to introduce science and engineering practices as specified in the K-12 Framework. Using this framework, the classroom teacher was able to complete practices for planning and carrying out investigations, developing and using models, analyzing and interpreting data, and constructing and designing solutions
Lower dose anti-thymocyte globulin for GvHD prophylaxis results in improved survival after allogeneic stem cell transplantation
In vivo T-cell depletion with anti-thymocyte globulin (ATG) can attenuate GvHD but may increase infection and relapse risks. ATG-Fresenius (ATG-F) at a dose of 60 mg/kg was standard GvHD prophylaxis in unrelated donor hematopoietic stem cell transplantation (HSCT) at our institution. We changed to an incremental reduced dose regimen of 35 mg/kg and extended ATG prophylaxis to include older matched-related donor transplants considered to be at higher risk of GvHD. A total of 265 adults with hematological malignancies receiving a first allogeneic HSCT after myeloablative conditioning between 2009 and 2014 were analyzed in this cohort study. Patients had either received higher dose (n=32) or lower dose ATG-F (n=88) or no ATG (n=145). ATG-F was associated with slower engraftment and less chronic GvHD, whereas no effect was noted on acute grade II-IV GvHD and relapse incidence. Transplant-related mortality (TRM) was lower and survival higher with lower dose, but not with higher dose ATG-F. Both ATG-F groups were associated with more viral reactivation, viral disease and bacterial blood stream infection, but not invasive fungal infection, and with slower immune reconstitution. The recently adopted strategy of using lower doses of ATG-F in unrelated and older age-related donor HSCT appears to reduce TRM without increasing disease relapse, leading to slightly enhanced survival
Association of host factors with antibody response to seasonal influenza vaccination in allogeneic hematopoietic stem cell transplant (HSCT) patients
BACKGROUND
Influenza vaccination efficacy is reduced after hematopoietic stem cell transplantation (HSCT) and patient factors determining vaccination outcomes are still poorly understood.
METHODS
We investigated the antibody response to seasonal influenza vaccination in 135 HSCT patients and 69 healthy volunteers (HVs) in a prospective observational multicenter cohort study. We identified patient factors associated with hemagglutination inhibition titers against A/California/2009/H1N1, A/Texas/2012/H3N2, and B/Massachusetts/2012 by multivariable regression on the observed titer levels and on seroconversion/seroprotection categories for comparison.
RESULTS
Both regression approaches yield consistent results but regression on titers estimated associations with higher precision. HSCT patients required two vaccine doses to achieve average responses comparable to a single dose in HVs. Pre-vaccination titers were positively associated with time after transplantation, confirming that HSCT patients can elicit potent antibody responses. However, an unrelated donor, absolute lymphocyte counts below the normal range and treatment with calcineurin inhibitors lower the odds of responding.
CONCLUSIONS
HSCT patients show a highly heterogeneous vaccine response, but overall, patients benefited from the booster shot and can acquire seroprotective antibodies over the years after transplantation. Several common patient factors lower the odds of responding, urging to identify additional preventive strategies in the poorly responding groups
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The potential impact of new Andean dams on Amazon fluvial ecosystems.
Increased energy demand has led to plans for building many new dams in the western Amazon, mostly in the Andean region. Historical data and mechanistic scenarios are used to examine potential impacts above and below six of the largest dams planned for the region, including reductions in downstream sediment and nutrient supplies, changes in downstream flood pulse, changes in upstream and downstream fish yields, reservoir siltation, greenhouse gas emissions and mercury contamination. Together, these six dams are predicted to reduce the supply of sediments, phosphorus and nitrogen from the Andean region by 69, 67 and 57% and to the entire Amazon basin by 64, 51 and 23%, respectively. These large reductions in sediment and nutrient supplies will have major impacts on channel geomorphology, floodplain fertility and aquatic productivity. These effects will be greatest near the dams and extend to the lowland floodplains. Attenuation of the downstream flood pulse is expected to alter the survival, phenology and growth of floodplain vegetation and reduce fish yields below the dams. Reservoir filling times due to siltation are predicted to vary from 106-6240 years, affecting the storage performance of some dams. Total CO2 equivalent carbon emission from 4 Andean dams was expected to average 10 Tg y-1 during the first 30 years of operation, resulting in a MegaWatt weighted Carbon Emission Factor of 0.139 tons C MWhr-1. Mercury contamination in fish and local human populations is expected to increase both above and below the dams creating significant health risks. Reservoir fish yields will compensate some downstream losses, but increased mercury contamination could offset these benefits