Hohe Erwartungen an Unternehmen : Ergebnisse einer Befragung der Schweizer Bevölkerung zur verantwortungsvollen Unternehmensführung

Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch

Swiss CSR Monitor 2006 : Die gesellschaftliche Verantwortung von Unternehmen in der Wahrnehmung der Schweizer Bevölkerung. Mit einem Schwerpunkt zu Banken und Pensionskassen

Der Swiss CSR Monitor hat zum Ziel, periodisch die öffentliche Meinung in der Schweiz zur gesellschaftlichen Verantwortung von Unternehmen zu erheben. Damit soll Firmen aufgezeigt werden, welche Erwartungen die Öffentlichkeit an sie hat. Unternehmen können aus den Ergebnissen soziale Chancen und Risiken ihrer Tätigkeit ableiten. Der Swiss CSR Monitor 2006 stellt die Ergebnisse der Umfrage im Jahr 2006 dar

Spatial two-particle NOON-states in periodically shaken three-well potentials

Few-particle dynamics in a three-well potential are investigated numerically. It is shown that periodically shaking the potential can considerably increase the fidelity of emerging spatial quantum superpositions. Such NOON-states are important for quantum interferometry. If the two particles initially sit in the middle well, the probability to return to this state can distinguish pure quantum dynamics from statistical mixtures. The numeric implementation of decoherence via particle losses shows clear differences from the pure quantum behaviour. A three-well lattice could be an ideal system for experimental realizations

A microsatellite-based multilocus phylogeny of the Drosophila melanogaster species complex

AbstractUncovering the genealogy of closely related species remains a major challenge for phylogenetic reconstruction. It is unlikely that the phylogeny of a single gene will represent the phylogeny of a species as a whole [1], but DNA sequence data across a large number of loci can be combined in order to obtain a consensus tree [2]. Long sequences are needed, however, to minimize the effect of (infrequent) base substitutions, and sufficient individuals must be sequenced per species to account for intraspecific polymorphisms, an overwhelming task using current DNA sequencing technology. By contrast, microsatellites are easy to type [3], allowing the analysis of many loci in multiple individuals. Despite their successful use in mapping [4,5], behavioural ecology [6] and population genetics [7], their usefulness for the phylogenetic reconstruction of closely related taxa has never been demonstrated, even though microsatellites are often conserved across species [8–10]. One drawback to microsatellite use is their high mutation rate (10−4–10−2), combined with an incomplete understanding of their mutation patterns. Many microsatellites are available for Drosophila melanogaster, and they are distributed throughout the genome [11]. Most can be amplified in the D. melanogaster species complex [12,13] and have low mutation rates [14,15]. We show that microsatellite-specific distance measurements [16] correlate with other multilocus distances, such as those obtained from DNA–DNA hybridization data. Thus microsatellites may provide an ideal tool for building multilocus phylogenies. Our phylogenetic reconstruction of the D. melanogaster complex provides strong evidence that D. sechellia arose first, followed by a split between D. simulans and D. mauritiana

Validation of reference genes for quantitative real-time PCR during leaf and flower development in Petunia hybrida

<p>Abstract</p> <p>Background</p> <p>Identification of genes with invariant levels of gene expression is a prerequisite for validating transcriptomic changes accompanying development. Ideally expression of these genes should be independent of the morphogenetic process or environmental condition tested as well as the methods used for RNA purification and analysis.</p> <p>Results</p> <p>In an effort to identify endogenous genes meeting these criteria nine reference genes (RG) were tested in two Petunia lines (Mitchell and V30). Growth conditions differed in Mitchell and V30, and different methods were used for RNA isolation and analysis. Four different software tools were employed to analyze the data. We merged the four outputs by means of a non-weighted unsupervised rank aggregation method. The genes identified as optimal for transcriptomic analysis of Mitchell and V30 were <it>EF1α </it>in Mitchell and <it>CYP </it>in V30, whereas the least suitable gene was <it>GAPDH </it>in both lines.</p> <p>Conclusions</p> <p>The least adequate gene turned out to be <it>GAPDH </it>indicating that it should be rejected as reference gene in Petunia. The absence of correspondence of the best-suited genes suggests that assessing reference gene stability is needed when performing normalization of data from transcriptomic analysis of flower and leaf development.</p

Entangling two distinguishable quantum bright solitons via collisions

The generation of mesoscopic Bell states via collisions of distinguishable bright solitons has been suggested in Phys. Rev. Lett. 111, 100406 (2013). Here, we extend our former proposal to two hyperfine states of 85Rb instead of two different atomic species, thus simplifying possible experimental realisations. A calculation of the s-wave scattering lengths for the hyperfine states (f,mf) = (2, +2) and (3, +2) identifies parameter regimes suitable for the creation of Bell states with an advantageously broad Feshbach resonance. We show the generation of Bell states using the truncated Wigner method for the soliton's centre of mass and demonstrate the validity of this approach by a comparison to a mathematically rigorous effective potential treatment of the quantum many-particle problem

Wissenschaftsbasiertes Lernen und digitaler Wandel im Seniorenstudium

Das Seniorenstudium der Ludwig-Maximilians-Universität München wurde durch die Auswirkungen der Corona-Pandemie stark und nachhaltig beeinflusst. Im vorliegenden Artikel wird auf Basis von drei Teilnehmendenbefragungen aus den Jahren 2018, 2020 und 2021 diskutiert, welche Veränderungen die Umstellung auf digitale Lehrangebote mit sich bringt, aber auch welche Kontinuitäten trotz Onlinelehre erkennbar sind. Es lassen sich in der explorativen Studie Unterschiede hinsichtlich der Teilnahmemotive und der Bereitschaft, synchrone Lehrangebote zu nutzen, feststellen. Die Bereitschaft der älteren Lernenden, sich mit digitalen Lernformaten auseinander zu setzen, ist generell vorhanden, auch wenn ein Rückgang der Teilnehmendenzahlen zu vermerken ist. Das wissenschaftsbasierte Lernen wird auch in der Pandemie nachgefragt, die Vermittlung von Erkenntnissen aus der Forschung ist weitgehend unbehelligt von den Veränderungen, die der digitale Wandel mit sich bringt. So ist auch eine Stabilität didaktischer Grundlagen wie Selbststeuerung, Freiwilligkeit und Diskursfähigkeit im Seniorenstudium erkennbar. (DIPF/Orig.