Dynamics of change in transnational families - biographical perspectives on family figurations between Spain and Ecuador

This paper explores the figurational process in transnational families through the study of the biographical self-presentations and the life courses of family members who live apart (in Bilbao, Spain and Guayaquil, Ecuador) but remain interdependent. It asks which factors inside and outside the family figuration influence the negotiation of the fragile power balances along gender and generational lines, with what effect for the structure of positions, family norms, mutual expectations and the division of tasks. Special attention is given to the deep financial and economic crisis affecting Spain between 2008 and 2014 and how this sudden change of the context in one national society impacts the transnational family life. Results highlight the importance of the long-term pre-migration family figurational process for the way transnational family life is being shaped. They also show how a variety of influencing factors, observed during the migration period and located in different national societies and the transnational social space, is intertwined with the logic of this long-term process.Der Artikel beschreibt Figurationsprozesse in transnationalen Familien und nutzt dazu die Analyse von biographischen Selbstdarstellungen und Lebensverläufen von getrennt lebenden, aber miteinander verbundenen Familienmitgliedern in Bilbao/Spanien und Guayaquil/Ecuador. Er fragt nach den Faktoren innerhalb und außerhalb der Familie, die das Aushandeln der labilen Machtbalancen zwischen Geschlechtern und Generationen beeinflussen, und welche Auswirkungen das hat für das Positionsgefüge, das familiale Normensystem, gegenseitige Erwartungen und die Aufgabenverteilung. Besonderes Augenmerk liegt dabei auf der Finanz- und Wirtschaftskrise in Spanien zwischen 2008 und 2014, und wie dieser abrupte Wandel in den Kontextbedingungen in einer Nationalgesellschaft das transnationale Familienleben beeinflusst. Die Ergebnisse zeigen die Bedeutung des langfristigen, sich bereits vor der Migration entfaltenden, familialen Figurationsprozesses für die Art und Weise, wie sich das transnationale Familienleben gestaltet. Sie zeigen auch, wie die verschiedenen beeinflussenden Faktoren während der Migrationsphase, verortet in verschiedenen Nationalgesellschaften und im transnationalen sozialen Raum, mit der Dynamik dieses langfristigen Prozesses verflechtet sind

Surface modification of cotton fabrics treated with organic-inorganic nanocomposites

Cotton fabrics have been treated with mixtures of hydrolysed organoalkoxysilanes and hydrolysed metal alkoxides toimpart novel properties to the cellulosic material. For this purpose, the cotton samples are impregnated with aqueoussolutions comprising various compositions of (3-glycidyloxy)propyltrimethoxysilane, tetraethoxysilane, (3-amino)propyltriethoxysilane,aluminium isopropoxide, titanium tetraisopropoxide, and zircon tetrabutoxide, and then dyed with the naturaldyestuff alizarin, as the hydrolysed metal alkoxide acts as mordant. The physico-mechanical properties, such as creaserecovery angle, tensile strength, stiffness, contact angle, and whiteness index (undyed fabric), are evaluated. The resultsshow that the incorporation of tetraethoxysilane or (3-amino) propyltriethoxysilane causes an alteration in physicomechanicalproperties. The treatment with metal alkoxides increases the contact angle. Dyeing with alizarin causes differentcolor shades which are evaluated in terms of the colorimetric data, such as L*, a*, b* and K/S values

Superheavy nuclei in a chiral hadronic model

Superheavy nuclei are investigated in a nonlinear chiral SU(3)-model. The proton number Z=120 and neutron numbers of N=172, 184 and 198 are predicted to be magic. The charge distributions and alpha-decay chains hint towards a hollow stucture

Nuclei, superheavy nuclei, and hypermatter in a chiral SU(3) model

A model based on chiral SU(3)-symmetry in nonlinear realisation is used for the investigation of nuclei, superheavy nuclei, hypernuclei and multistrange nuclear objects (so called MEMOs). The model works very well in the case of nuclei and hypernuclei with one Lambda-particle and rules out MEMOs. Basic observables which are known for nuclei and hypernuclei are reproduced satisfactorily. The model predicts Z=120 and N=172, 184 and 198 as the next shell closures in the region of superheavy nuclei. The calculations have been performed in self-consistent relativistic mean field approximation assuming spherical symmetry. The parameters were adapted to known nuclei

Imaging correlated wave functions of few-electron quantum dots: Theory and scanning tunneling spectroscopy experiments

We show both theoretically and experimentally that scanning tunneling spectroscopy (STS) images of semiconductor quantum dots may display clear signatures of electron-electron correlation. We apply many-body tunneling theory to a realistic model which fully takes into account correlation effects and dot anisotropy. Comparing measured STS images of freestanding InAs quantum dots with those calculated by the full configuration interaction method, we explain the wave function sequence in terms of images of one- and two-electron states. The STS map corresponding to double charging is significantly distorted by electron correlation with respect to the non-interacting case.Comment: RevTeX 4.0, 5 pages, 3 B/W figures, 1 table. This paper is based on an invited talk presented by the authors at the 28th International Conference on the Physics of Semiconductors, which was held 24-28 July 2006, in Vienna, Austri

Chiral model for dense, hot and strange hadronic matter

Introduction: Until now it is not possible to determine the equation of state (EOS) of hadronic matter from QCD. One succesfully applied alternative way to describe the hadronic world at high densities and temperatures are effective models like the RMF-models [1], where the relevant degrees of freedom are baryons and mesons instead of quarks and gluons. Since approximate chiral symmetry is an essential feature of QCD, it should be a useful concept for building and restricting e ective models. It has been shown [2,3] that effective sigma-omega models including SU(2) chiral symmetry are able to obtain a reasonable description of nuclear matter and finite nuclei. Recently [4] we have shown that an extended SU(3) × SU(3) chiral sigma-omega model is able to describe nuclear matter ground state properties, vacuum properties and finite nuclei satisfactorily. This model includes the lowest SU(3) multiplets of the baryons (octet and decuplet[5]), the spin-0 and the spin-1 mesons as the relevant degrees of freedom. Here we will discuss the predictions of this model for dense, hot, and strange hadronic matter

Großes Lob für „Liesa“: Onlineportal bietet vor allem in strukturschwachen Regionen große Vorteile

24 Stunden, sieben Tage die Woche: Mit dem Onleihe-Verbund „Liesa“ bieten 31 sächsische Stadt- und Gemeindebibliotheken ihren Kunden ein Onlineportal an, das rund um die Uhr genutzt werden kann – gerade im ländlichen Raum ein enormer Vorteil und Vorbild für andere Regionen. Im Oktober wurde das Projekt deshalb mit dem „Bibliothekspreis 2015“ ausgezeichnet