Excision of singularities by stringy domain walls

We study supersymmetric domain walls on S1/Z2 orbifolds. The supergravity solutions in the bulk are given by the attractor equation associated with Calabi–Yau (CY) spaces and have a naked space–time singularity at some |ys|. We are looking for possibilities to cut off this singularity with the second wall by a stringy mechanism. We use the collapse of the CY cycle at |yc| which happens before and at a finite distance from the space–time singularity. In our example with three Kähler moduli the second wall is at the end of the moduli space at |yc| where also the enhancement of SU(2) gauge symmetry takes place so that |ye| = |yc|1/R duality. The position of the enhançon is given by the equation R(|ye|) = 1

Chiral Analysis of the Generalized Form Factors of the Nucleon

We apply the methods of Chiral Perturbation Theory to the analysis of the first moments of the Generalized Parton Distributions in a Nucleon, usually known as generalized form factors. These quantities are currently also under investigation in Lattice QCD analyses of baryon structure, providing simulation results at large quark masses to be extrapolated to the "real world" via Chiral Effective Field Theory. We have performed a leading-one-loop calculation in the covariant framework of Baryon Chiral Perturbation Theory (BChPT), predicting both the momentum and the quark-mass dependence for all the vector and axial (generalized) form factors. In particular we discuss the results for the limit of vanishing four-momentum transfer where the GPD-moments reduce to the well known moments of Parton Distribution Functions (PDFs). We fit our results to available lattice QCD data, extrapolating down to the physical point. We conclude by presenting outstanding results from a combined fit to different GPDs-moments.Comment: 7 pages, 4 figures, Proceedings of Lattice 2007 (July 30 - 4 August 2007, Regensburg, Germany

PURCHASE BEHAVIOUR RELATED TO HEATING SYSTEMS IN GERMANY WITH SPECIAL CONSIDERATION OF CONSUMERS' ECOLOGICAL ATTITUDES

Paper prepared for presentation at the Energy Engineering, Economics and Policy (EEEP) Conference Orlando (USA), 13th July 2009Consumer behaviour, Germany, Heating systems, Demand and Price Analysis, Q41, R20, M39,

Why do women fall for money? The Effect of Gender Ideology and Culture on the Mate Preference for Resources

Women generally value a potential partner's earning capacity more than men. Patriarchal gender ideologies could explain why even financially independent females prefer a mate with resources and would also hold for migrants from more to less patriarchal countries. To examine the role of gender traditionalism and ethnicity, the present online study compared the preference for a mate with financial resources in 406 Turkish, Dutch and German students and Turkish migrants in Germany and the Netherlands. As expected, more traditional females, and women from more patriarchal cultures, found resources more important than less traditional females, and women from more egalitarian cultures

Provincial Administration in Babylonia: A Case of Kassite Nippur

The talk gives an overview of the system of provincial administration in Babylonia during the rule of the Kassite dynasty (ca. 1531-1155 BC). Since about 90% of all written sources from this period (almost 12000 cuneiform tablets) come from a single location – the city of Nippur, the religious center of the country – this study is based for the most part on the economic and administrative documents from that place. The available texts cover about 150 years – from the beginning of the reign of Burna-Buriaš II (ca. 1359 B.C.) till the end of the reign of Kaštiliashu IV (1225 B.C.).The documents reflect the vibrant economic life of the region and give some ideas about how the social organization of Nippur and settlements of the homonymous adjacent province was shaped and how the city administrative system functioned. They mention administrators and officials of different levels responsible for the city household transactions (record keeping of economic accounts, maintaining agricultural and irrigational activities, distributing the harvest and goods, supervising the workforce). Among them one official clearly stands out – the chief governor of Nippur (šandabakku in Akkadian, gú.en.na/gá.dub.ba.(a) in Sumerian). He probably reported directly to the king of Babylonia and was endowed with significant political and administrative power, controlling economic transactions in the region and performing legal procedures. Several persons holding šandabakku office also bear a title nešakku (nu.èš den.líl in Sumerian) – one of the important priest offices of the god Enlil’s temple – Ekur. That indicates that the governor of Nippur was closely linked to the largest city temple and was involved in the governance and administration of its household as well

Preparation of an ultra-cold sample of ammonia molecules for precision measurements

We present experiments in which an ultra-cold sample of ammonia molecules is released from an electrostatic trap and recaptured after a variable time. It is shown that, by performing adiabatic cooling before releasing the molecules and adiabatic re-compression after they are recaptured, we are able to observe molecules even after more than 10 ms of free expansion. A coherent measurement performed during this time will have a statistical uncertainty that decreases approximately as the inverse of the square root of the expansion time. This offers interesting prospects for high-resolution spectroscopy and precision tests of fundamental physics theories