2,456 research outputs found
Carl Julius von Bach: Praktiker – Wissenschaftler – Mensch
No full textDie Person Carl von Bach ist heute leider nur noch den Fachleuten bekannt. Zu seinen Lebzeiten (1847—1931) prägte er jedoch wesentliche Bereiche des Maschinenbaus, insbesondere der Elastizitäts- und Festigkeitslehre. Von seinen Arbeiten profitierten Wissenschaftler, Erfinder und Unternehmer die heute noch weltbekannt sind wie Rudolf Diesel, Graf Ferdinand von Zeppelin, Robert Bosch, um nur einige zu nennen.
Das Wirken Bachs widerspiegelt sich in dem außerordentlich reich überlieferten Nachlass im Universitätsarchiv Chemnitz. Im Nachlass sind persönliche Dokumente, eine umfangreiche private und dienstliche Korrespondenz sowie seine wissenschaftlichen Arbeiten und Geschäftspapiere in einzigartiger Vollständigkeit überliefert.
Katja Engler wertet in einer quellengesättigten Biografie große Teile dieses Nachlasses aus. Sie lässt den Praktiker, Wissenschaftler, Wissenschaftspolitiker und Hochschullehrer quasi wieder auferstehen. Mit dem Aufsatz werden seine Leistungen für den Maschinenbau ausgangs des 19. und Anfang des 20. Jahrhunderts in hervorragender Weise zusammengefasst.
Im zweiten Aufsatz von Karin Dengler-Schreiber wird der Mensch Carl Bach aus den nachgelassenen Briefen und Aufzeichnungen seiner Ehefrau Sophie näher beleuchtet. Der herausragende Wissenschaftler und Hochschullehrer zeigt sich als Ehemann ganz als Person seiner Zeit — als Mensch, mit all seinen Fehlern und Schwächen.:Stephan Luther: Vorwort .......... 7
Katja Engler: Carl Julius von Bach.
Leben und Wirken eines Pioniers der Ingenieurausbildung .......... 15
Karin Dengler-Schreiber: Sophie und Carl Bach. Tragik einer Ehe .......... 105The person Carl von Bach is unfortunately only known to experts today. During his lifetime (1847—1931), however, he shaped essential areas of mechanical engineering, especially the theory of elasticity and strength. His work benefited scientists, inventors and entrepreneurs who are still world-famous today, such as Rudolf Diesel, Count Ferdinand von Zeppelin and Robert Bosch, to name but a few.
Bach's work is reflected in the extraordinarily richly preserved papers in the Chemnitz University Archives. The personal papers contains a unique completeness of personal documents, extensive private and official correspondence, as well as his scientific works and business papers.
Katja Engler evaluates large parts of this papers in a biography saturated with sources. She virtually resurrects the practitioner, scientist, science politician and university lecturer. The essay provides an excellent summary of his achievements for mechanical engineering at the end of the 19th and beginning of the 20th century.
The second essay by Karin Dengler-Schreiber takes a closer look at Carl Bach as a person from the letters and notes left by his wife Sophie. The outstanding scientist and university lecturer shows himself as a husband completely as a person of his time - as a human being, with all his faults and weaknesses.:Stephan Luther: Vorwort .......... 7
Katja Engler: Carl Julius von Bach.
Leben und Wirken eines Pioniers der Ingenieurausbildung .......... 15
Karin Dengler-Schreiber: Sophie und Carl Bach. Tragik einer Ehe .......... 10
Ask questions, get sales : close the deak and create long-term relationships / Stephan Schiffman.
No full textIncludes index.v, 168 pages ;In Ask Questions, Get Sales, the author and sales guru Stephan Schiffman helps readers boost their careers to the gold-medal level by teaching them how to strengthen their questioning skills during the sales process. The premise is simple yet effective: In order to be successful, salespeople need to change their mindset from "need-orientated" to "do-orientated". The message of the book centers around six core "do" questions: What do you do? How do you do it? When and where do you do it? Why do you do it that way? Who do you do it with? How can we help you do it better? With this indispensable guide in their briefcase, salespeople will have information at the ready to score big sales over the short term and the long term
The Rich Demystified - A Reply to Bach, Corneo, and Steiner (2008)
No full textThe contribution Bach, Corneo, and Steiner (2008) has argued that “the rich” do not pay taxes adequately in relation to their income, finding, for instance, an effective tax rate of only 38.1% for the 0.001% fractile of German income taxpayers in 2001. This result contrasts sharply with the legislated top marginal income tax rate of 48.5%. We subject the results contained in Bach, Corneo, and Steiner (2008) to a rigorous analysis: We find major flaws and inconsistencies with regard to methodology, i.e. the omission of corporate taxes and inter-temporal aspects of taxation. Restating basic rules for the measurement of effective tax rates, we provide values for what we term the “comprehensive nominal tax rate” (CNTR) and show that the headline result in Bach, Corneo, and Steiner (2008) of 38.1% is underestimated by over 12 percentage points. As an important distributional result, the CNTR increases with increasing taxable income.top incomes, income taxation, taxing the rich, comprehensive nominal tax rate
Unemployment Benefits and Unemployment Rates of Low-Skilled and Elder Workers in West Germany: A Search Equilibrium Approach
No full textApproach Author & abstract Download 16 References 1 Citations Related works & more Corrections Author Listed: Launov, Andrey ([email protected]) (University of Kent) Wolff, Joachim ([email protected]) (Institute for Employment Research (IAB), Nuremberg) Klasen, Stephan ([email protected]) (University of Göttingen) Registered: Stephan Klasen Abstract In this paper we investigate whether the extension of the entitlement to unemployment benefits in the mid 80s can explain the increase in the unemployment rates of unskilled and elder workers in western Germany. To answer this question we estimate a version of the Burdett-Mortensen search equilibrium model and analyze how workers’ search behaviour responded to these reforms. We try both nonparametric and fully-parametric estimation methods and identify the cases in which the nonparametric approach cannot be applied. We find that the entitlement reforms are largely responsible for the increase of unemployment among unskilled workers
Unemployment Benefits and Unemployment Rates of Low-Skilled and Elder Workers in West Germany: A Search Equilibrium Approach
No full textApproach Author & abstract Download 16 References 1 Citations Related works & more Corrections Author Listed: Launov, Andrey ([email protected]) (University of Kent) Wolff, Joachim ([email protected]) (Institute for Employment Research (IAB), Nuremberg) Klasen, Stephan ([email protected]) (University of Göttingen) Registered: Stephan Klasen Abstract In this paper we investigate whether the extension of the entitlement to unemployment benefits in the mid 80s can explain the increase in the unemployment rates of unskilled and elder workers in western Germany. To answer this question we estimate a version of the Burdett-Mortensen search equilibrium model and analyze how workers’ search behaviour responded to these reforms. We try both nonparametric and fully-parametric estimation methods and identify the cases in which the nonparametric approach cannot be applied. We find that the entitlement reforms are largely responsible for the increase of unemployment among unskilled workers
Measuring Vulnerability to Poverty Using Long-Term Panel Data
No full textMeasuring Vulnerability to Poverty Using Long-Term Panel Data Author & abstract Download & other version 16 References 4 Citations Related works & more Corrections Author Listed: Katja Landau (Georg-August-University Göttingen) Stephan Klasen (Georg-August-University Göttingen) Walter Zucchini (Georg-August-University Göttingen) Registered: Stephan Klasen Abstract We investigate the accuracy of ex ante assessments of vulnerability to income poverty using cross-sectional data and panel data. We use long-term panel data from Germany and apply di fferent regression models, based on household covariates and previous-year equivalence income, to classify a household as vulnerable or not. Predictive performance is assessed using the Receiver Operating Characteristics (ROC), which takes account of false positive as well as true positive rates. Estimates based on cross-sectional data are much less accurate than those based on panel data, but for Germany, the accuracy of vulnerability predictions is limited even when panel data are used. In part this low accuracy is due to low poverty incidence and high mobility in and out of poverty
Measuring Vulnerability to Poverty Using Long-Term Panel Data
No full textMeasuring Vulnerability to Poverty Using Long-Term Panel Data Author & abstract Download & other version 16 References 4 Citations Related works & more Corrections Author Listed: Katja Landau (Georg-August-University Göttingen) Stephan Klasen (Georg-August-University Göttingen) Walter Zucchini (Georg-August-University Göttingen) Registered: Stephan Klasen Abstract We investigate the accuracy of ex ante assessments of vulnerability to income poverty using cross-sectional data and panel data. We use long-term panel data from Germany and apply di fferent regression models, based on household covariates and previous-year equivalence income, to classify a household as vulnerable or not. Predictive performance is assessed using the Receiver Operating Characteristics (ROC), which takes account of false positive as well as true positive rates. Estimates based on cross-sectional data are much less accurate than those based on panel data, but for Germany, the accuracy of vulnerability predictions is limited even when panel data are used. In part this low accuracy is due to low poverty incidence and high mobility in and out of poverty
Evaluation of in-store processes related to returnable packaging services offered in grocery stores - the store management perspective
No full textAuthor Stephan LehnerMasterarbeit Universität Linz 202
Evaluation of in-store processes related to returnable packaging services offered in grocery stores - the store management perspective
No full textAuthor Stephan LehnerMasterarbeit Universität Linz 202
Early identification of acute heart failure at the time of presentation: do natriuretic peptides make the difference?
No full textAbstract Background The early identification of patients with acute heart failure (AHF) is challenging as many other diseases lead to a clinical presentation with dyspnea. Aim The aim of the study was to evaluate the impact of natriuretic peptides at common HF study cut‐offs on the diagnosis of patients with dyspnea at admission. Methods and results For this post hoc analysis, we analysed n = 726 European Union (EU) patients from the prospective BACH (Biomarkers in Acute Heart Failure) study. Cut‐offs were 350 ng/L (BNP), 300 pmol/L [pro‐atrial natriuretic peptide (proANP)], and 1800 ng/L (NT‐proBNP). These cut‐offs had equivalent 90 days' mortality in the EU cohort of BACH. We analysed the effect of selection using these cut‐offs on the prevalence of the gold standard diagnoses made in the BACH study and the respective mortality. The prevalence of AHF is increased from 47.5 to 75.6% (NT‐proBNP criteria) up to 79.7% (BNP criteria). With the use of the proANP criteria, 90 days' mortality of patients with AHF rose from 14 to 17% ( P = 0.029). In the group with no‐AHF diagnoses, mortality rose from 10 to 25% ( P < 0.001). Conclusions The prevalence of patients with the gold standard diagnoses of AHF among those presenting with dyspnea to the emergency department is significantly increased by the use of natriuretic peptides with common cut‐offs used in prospective HF studies. Nevertheless, in the selected groups, patients with no AHF diagnosis have the highest mortality, and therefore, the addition of a natriuretic peptide alone is insufficient to start specific therapies
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