The generalization of the conformal scattering method for small-angle scattering processes involving magnetic monopoles and ordinary charges is constructed. Using this generalization we show that introducing of magnetic charges corresponds to analytical continuation of the eikonal amplitude in the complex charge plane (the imaginary part is proportional to the magnetic charge). We calculate exp...

We discuss compactifications of the heterotic string in the presence of background fluxes. Specifically we consider compactifications on T , T , K3× T 2 and K3× S for which we derive the bosonic sector of the low energy effective action. The consistency with the corresponding gauged supergravities is demonstrated. October 2001 Work supported by: DFG – The German Science Foundation, GIF – the Ge...

One of the core functions universities world over is generation new knowledge through research and innovations. African have been facing mammoth challenges, especially on their role in research. This partly due to weak internal capacities for low numbers staff with PhDs, which also crucial growth self-renewal. article analyses state doctoral training Africa some insights into its implications g...

The first Institute of Biochemistry in Japan was founded by Leonor Michaelis from Berlin at Nagoya in 1922, and there have been numerous interrelations between Japanese and German biochemists since. Some such relationships are presented here from a personal point of view as one illustrative example, which could be extended amply by the experience of many other scientists from the two countries....

Recently, a number of researchers have proposed the use of experimental methods to elicit acceptability judgments, thus addressing the shortcomings of the conventional intuitive way of gathering linguistic data (cf. Bard et al. 1996; Cowart 1997; Schütze 1996). The use of experimental methods allows to handle interand intraspeaker variation and to control for known biases on judgment behavior (...

ACKNOWLEDGEMENTS First of all, i would like to thank my advisor Prof. Laurence J. Jacobs for all his support during my stay in Atlanta. He helped me in desperate situations and motivated me whenever it was necessary. Because of his financial and organizational commitment , i could present the results of this thesis at the Quantitative Nondestructive Evaluation (QNDE) conference in Brunswick, Ma...

Climate change is a significant concern impacting food security, agricultural reform, disease transmission, and disruption to human, plant, animal ecosystems, along with host of additional consequences, ultimately affecting the quality life livelihoods global population. African-based research aims better understand impact climate on nature different aspects humanity, as well improve forecastin...

Hayatımın en önemli dönemi olarak üniversite yıllarından başlatmak istiyorum yazımı. Akademik hayatım, gerçek anlamda tercihiyle başladı çünkü. Ankara Üniversitesi Hukuk Fakültesinin sınav sonuçları açıklandığında listede benim de kazanmış olduğumu gördüm. 1965 yılında Fakültesi’nden mezun oldum. Fakülteyi birincilikle bitirmiş olmamın akademik kariyerimde bir avantajı oldu. Deutscher Akademisc...