Enthält den persönlichen Rückblick von Professor Ulrich Johannes Schneider über seine Tätigkeit an der UBL in den Jahren 2006 - 2022, außerdem Bericht über die UB Leipzig in der Pandemie, Personal, Drittmittelgestützte Projekte, Veröffentlichungen der UB Leipzig, die UB Leipzig in derÖffentlichkeit mit einen Ausblick und der UB Leipzig in Zahlen im Jahr 2021.:1. Mein persönlicher Rückblick 2. Die UB Leipzig in der Pandemie 3. Personal 4. Drittmittelgestützte Projekte 5. Veröffentlichungen 6. Die UB Leipzig in der Öffentlichkeit 7. Ausblick 8. Die UB Leipzig in Zahlen

Das Institut für Meteorologie engagierte sich in den Forschungsschwerpunkten atmosphärische Grenzschicht, Wasserhaushalt in Einzugsgebieten von regionaler Skala im großräumigen Umfeld, Dynamik der mittleren und oberen Atmosphäre, Variabilität der Ionosphäre, Strahlungsprozesse in der Atmosphäre, Modellierung von Aerosol- und Wolkenphysik, natürliche Klimavariabilität unter Einschluss der Rolle des Ozeans und Anregung und Ausbreitung großskaliger Strömungssysteme in Ozean und Atmosphäre. Dabei kamen Fernerkundungsverfahren vom Boden und von Satelliten aus, in-situ-Experimente, konzeptionelle und Simulationsmodelle zum Einsatz. Besondere Bedeutung hatte die Entwicklung und Anwendung von Verfahren zur tomographischen Rekonstruktion von dreidimensionalen Feldern atmosphärischer Größen. Eine enge Zusammenarbeit erfolgte mit dem Institut für Troposphärenforschung Leipzig, dem Institut für Atmosphärenphysik in Kühlungsborn, dem Max-Planck-Institut für Meteorologie in Hamburg und dem Geoforschungszentrum Potsdam.

Intensive agricultural systems have had several ecological effects on the surrounding ecosystem, including contributing to widespread pollinator declines. In order to help supplement bee communities and potentially improve crop production, we set out to study annual forb plantings adjacent to dry bean crops to determine the pollinator response to both plantings and any potential effects on dry bean yield. We found that annual forb plantings provided continual floral resources throughout the sampling period, which can support bees and their pollination services in agroecosystems. We also found cross-pollination had no effect on dry bean yield in Carrington and a negative effect in Hettinger, which could be due to methodological issues. While we did not observe a yield increase in dry bean production, the addition of annual forb plantings in agroecosystems could help support the local bee community, and potentially encourage pollination services in other crops that do benefit from insect pollination.

Annual bluegrass (Poa annua L.) is the most problematic weed to control in creeping bentgrass (Agrostis stolonifera L.) putting greens.  The objective of this study was to transition a mixed putting green stand of annual bluegrass and creeping bentgrass to a monoculture by using fertilizers and plant growth regulators that selectively inhibit annual bluegrass.  A 25 year old loamy sand rootzone research green, planted with \'Penn-Eagle\' creeping bentgrass, with roughly 45% initial annual bluegrass coverage was utilized.  The biweekly application of ammonium sulfate (4.8 kg ha-1) with treatments of ferrous sulfate at rates of 0, 12.2, 24.4, and 48.8 kg ha-1 and in combination with seaweed extract (12.8 L ha-1) or paclobutrazol (0.37 L ai ha-1 spring and fall; 0.18 L ai ha-1 summer) were applied March to October, 2011 and 2012.  Plots receiving the highest rate of ferrous sulfate resulted in annual bluegrass infestation declines from an early trial amount of 45% to a final average of 20% but also resulted in unacceptable late-summer events of annual bluegrass collapse.  The ferrous sulfate medium rate resulted in a smooth transition from early-trial annual bluegrass infestation of 45% to an end of trial infestation of 20% and had the highest putting green quality.  Previous research has reported that consistent use of paclobutrazol can effectively and safely reduce annual bluegrass infestations.  In this trial annual bluegrass was reduced to 9% infestation after three months of application.  Two unexpected observations from this trial were that ferrous sulfate, applied at medium to high rates, significantly reduced silvery thread moss (Bryum argentum Hedw.) populations and occurrences of dollar spot (Sclerotinia homoeocarpa F. T. Bennett) disease.  Dollar spot control with ferrous sulfate has not previously been reported in the literature, so additional studies were designed to investigate this phenomenon further.  A creeping bentgrass putting green study was conducted to determine if sulfur, iron, or the two combined as ferrous sulfate decreases dollar spot activity.  Ferrous sulfate resulted in the highest turf quality and suppressed S. homoeocarpa infection, even during high disease pressure.  Fe-EDTA suppressed dollar spot infection as well as ferrous sulfate but quality declined to unacceptable levels during the summer, due to Fe-EDTA only.  Sulfur did not affect or increased S. homoeocarpa infection, indicating that a high and frequent foliar rate of iron is responsible for dollar spot control.  An in-vitro study was conducted to determine if agar pH in combination with iron concentrations affects mycelial growth of S. homoeocarpa.  Results from this trial indicated that 5.4 agar pH is an optimal pH for mycelial growth.  The 10 to 100 mg iron kg-1 concentration had little effect on mycelial growth at 5.0 and 5.5 pH, but increased growth at 4.5 and 6.5 pH.  As the iron concentration was increased from 10 to 100 to 1000 mg kg-1, mycelial growth decreased or stopped.  Our final conclusions are that seasonal biweekly foliar applications of the medium rate of ferrous sulfate (24.4 kg ha-1) safely and effectively reduced annual bluegrass infestation out of a creeping bentgrass putting green, while also effectively suppressing silvery thread moss and dollar spot incidence. / Master of Science

A pollen-restorer sugarbeet inbred, developed by four generations of selection of highly fertile plants from a CMS X table beet cross, was studied to determine if a change from sterile to fertile cytoplasm had occurred. Data showed that the fertility expressed by the restorer inbred was the result of genetic factors and not cytoplasmic reversion. Linkage tests with the Rf gene showed independence of the YRB group, m and vi4. A yellow-loaf mutant was inherited as a simple recessive factor. A partial pollen-restorer character, found in the yellow-leaf material, was inherited as a single dominant gene. The restorer factor was independent of yl and m, while the yl gene showed independence of m and B.

No description available.

Purpose: The purpose of this thesis is to contribute to a more comprehensive understanding of accounting firms’ visual portrayal.  Theoretical perspectives: Institutional theory, stereotype theory, legitimacy theory, stakeholder theory, and framing theory have, together with earlier literature, been applied to the empirical findings to fulfill the purpose of this thesis.  Methodology: Images in the annual reports of the Big 4 accounting firms in Sweden have been analyzed over a ten-year period. In total, 654 images have been coded and analyzed based on seven concepts. The first three concepts, namely gender, ethnicity, and age, are based on a visual content analysis. For the remaining concepts: professionalism, environmental sustainability, technology, and well-being, inspiration has been drawn from a visual grading analysis. In addition, secondary data concerning various events on a firm, institutional, and macro level that are related to the concepts of this thesis have, in essence, been collected from online news articles and annual reports of the Big 4 accounting firms in Sweden.  Findings: The findings show that the portrayal of professionalism is rather high but that a downward trend can be observed for most accounting firms. Instead, more room is given to the portrayal of other aspects which mainly revolves around environmental sustainability and well-being. The portrayal of ethnicity and young people show an upward trend for most accounting firms whereas there is a rather high portrayal of women in most years. Furthermore, the portrayal in accounting firms’ annual reports seem to be somewhat related to internal as well as external events.

Anhand ausgewählter Beispiele wird das vielfältige Wirken der Universitätsbibliothek Leipzig im Jahr 2022 präsentiert. Erfahren Sie darüber hinaus, was im Berichtsjahr sonst noch wichtig war: von Insektenmonitoring bis Multispektralfotografie, von Ehrenbürgerschaft, Abschied und Willkommen bis hin zu einer Einladung zum Tanz..:1. Editorial 2. Lernort 3. Im Fokus: Gesellschaft 4. In aller Kürze 5. Forschung und Transfer 6. Im Fokus: Publizieren 7. Zahlen und Fakten 8. Statistik

No description available.

Annual Exceedance Probability (AEP) is the method used by U.S. Army Corps of Engineers (USACE) to determine the probability of flooding caused by the failure of a levee or other flood control structure. This method shows the probability of flooding only at one particular location at a time. In order to overcome the limitation of AEP, a new method of studying flood probability, called an AEP map, was presented. By using hydrologic and hydraulic modeling software, an AEP map can be created to determine and visualize the spatial distribution of the probability of flooding. An AEP map represents a continuous solution of the probability of flooding and can be used to derive not only the limits of the typical 100-year inundation, but any other return period including the 20-year, 50-year, 500-year storm flood. The AEP map can be more useful than traditional flood hazard maps, since it makes it possible to evaluate the probability of flooding at any location within the floodplain. In the process of creating the AEP map, it is necessary to run number of simulations in order to accurately represent the probability distribution of flooding. The objective of this research, given a desktop computer of today's capacity, is to demonstrate the convergence of AEP maps after a reasonable number of simulations, so that users can have some guidelines to decide how many simulations are necessary. The Virgin River, UT is the primary study area for this research, with Gila River, AZ also used to support the results. The result of this research demonstrates the convergence of AEP maps by illustrating the convergence of water surface elevations computed as part of the hydraulic simulation leading up to the floodplain delineation model. If the average water surface elevations converge, then the resulting floodplain delineation (AEP maps) should also converge. The result proves that AEP maps do converge with a reasonable number of simulations. This research also shows the convergence of floodplain areas to demonstrate the convergence of AEP maps.