3,671 research outputs found
Authentic Corporate Social Responsibility Based on Authentic Empowerment: An Exemplary Business Leadership Case
Authors Dillon, Back, and Manz examine the underpinnings of genuine or authentic Corporate Social Responsibility (CSR), noting the direct nexus between stakeholder empowerment and the socially-responsible actions of authentic leaders. Such an empowering leadership approachâ involving structural, psychological, developmental, and financial components â is particularly exemplified by a family-owned (Back) wine and cheese company (Fairview Trust), situate in South Africa
Editorial: Controversies and solutions in environmental sciences: Addressing toxicity of sediments and soils
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2007 Ecomed Publishers
Therapie der CED bei Steroidversagen: Immunsuppressiva oder Biologika?
Zusammenfassung: Trotz oftmals erfolgreichem Einsatz von systemischen Steroiden in der Behandlung von Patienten mit aktiver chronisch-entzĂŒndlicher Darmerkrankung (CED) sind Limitationen vorhanden aufgrund von primĂ€rem Nichtansprechen, SteroidabhĂ€ngigkeit sowie Steroidresistenz. Eine Langzeittherapie mit Steroiden ist im Hinblick auf die bekannten Nebenwirkungen zu vermeiden. Dieser Artikel erlĂ€utert Indikationen fĂŒr den Einsatz von Immunmodulatoren (Azathioprin, 6-Mercaptopurin, Methotrexat), Medikamenten gegen Tumornekrosefaktor (Anti-TNF-Therapie) sowie Calcineurininhibitoren (Ciclosporin, Tacrolimus) bei Steroidresisten
Magnetic Response of Magnetospirillum Gryphiswaldense
In this study we modelled and measured the U-turn trajectories of individual
magnetotactic bacteria under the application of rotating magnetic fields,
ranging in ampitude from 1 to 12 mT. The model is based on the balance between
rotational drag and magnetic torque. For accurate verification of this model,
bacteria were observed inside 5 m tall microfluidic channels, so that they
remained in focus during the entire trajectory. From the analysis of hundreds
of trajectories and accurate measurements of bacteria and magnetosome chain
dimensions, we confirmed that the model is correct within measurement error.
The resulting average rate of rotation of Magnetospirillum Gryphiswaldense is
0.74 +- 0.03 rad/mTs.Comment: 17 pages, 12 figure
Magneto-optical study of electron occupation and hole wave functions in stacked self-assembled InP quantum dots
We have studied the magnetophotoluminescence of doubly stacked layers of self-assembled InP quantum dots in a GaInP matrix. 4.0±0.1 monolayers of InP were deposited in the lower layer of each sample, whereas in the upper layer 3.9, 3.4, and 3.0 monolayers were used. Low-temperature photoluminescence measurements in zero magnetic field are used to show that, in each case, only one layer of dots is occupied by an electron, and imply that when the amount of InP in both layers is the same, the dots in the upper layer are larger. High-field photoluminescence data reveal that the position and extent of the hole wave function are strongly dependent on the amount of InP in the stack. ©2001 American Institute of Physics
ANNIVERSARIES, THE PUBLIC, AND ACADEMIA
Anniversaries have been much problematised in scholarship, not least in the present special number. But pragmatically, they are also a triedâandâtested way of engaging with diverse publics. In contemporary British Higher Education, such work is incentivised through the impact agenda of the Research Excellence Framework. The following contribution brings together three Britishâbased colleagues in German Studies, who each reflect on their own practical experiences of capitalising on anniversaries. Henrike LĂ€hnemann discusses commemorative activities and events 500 years after the Reformation, in which she uses translating, printing, and singing as historic impactâstyle activities to engage audiences in Oxford and beyond. SeĂĄn Williams turns to mainstream media, arguing that anniversaries are a useful hook for bringing German Studies content to wider audiences â even if the commemorative occasions seem, on the face of it, less relevant to those of us working in increasingly marginal disciplines in Great Britain. Stefan Manz is concerned with remembering the forgotten âcollateralâ victims of the First World War during the centenary, particularly those Germans who were interned in camps throughout the British Empire. Manz shows that it is possible to connect the stories of the marginalised to largeâscale anniversaries in order to challenge dominant narratives. Here, as in all cases, the key to success is crossâsector collaboration and adaptation to nonâacademic needs and contexts
The I-mode confinement regime at ASDEX Upgrade: global propert ies and characterization of strongly intermittent density fluctuations
Properties of the IÂmode confinement regime on the ASDEX Upgrade tokamak are
summarized. A weak dependence of the power threshold for the LÂI transition on the toroidal
magnetic field strength is found. During improved confinement, the edge radial electric field
well deepens. Stability calculations show that the IÂmode pedestal is peelingÂballooning stable.
Turbulence investigations reveal strongly intermittent density fluctuations linked to the weakly
coherent mode in the confined plasma, which become stronger as the confinement quality
increases. Across all investigated structure sizes (
â
â„
k
5
â
12 cm
â
1
, with
â„
k
the perpendicular
wavenumber of turbulent density fluctuations), the intermittent turbulence bursts are observed.
Comparison with bolometry data shows that they move poloidally toward the XÂpoint and
finally end up in the divertor. This might be indicative that they play a role in inhibiting the
density profile growth, such that no pedestal is formed in the edge density profile.European Union (EUROfusion 633053)European Union (EUROfusion AWP15ÂENRÂ09/IPPÂ02
Multi-layer atom chips for versatile atom micro manipulation
We employ a combination of optical UV- and electron-beam-lithography to
create an atom chip combining sub-micron wire structures with larger
conventional wires on a single substrate. The new multi-layer fabrication
enables crossed wire configurations, greatly enhancing the flexibility in
designing potentials for ultra cold quantum gases and Bose-Einstein
condensates. Large current densities of >6 x 10^7 A/cm^2 and high voltages of
up to 65 V across 0.3 micron gaps are supported by even the smallest wire
structures. We experimentally demonstrate the flexibility of the next
generation atom chip by producing Bose-Einstein condensates in magnetic traps
created by a combination of wires involving all different fabrication methods
and structure sizes.Comment: 4 pages, 5 figure
How much do adults sit? Result from the German Health Update (GEDA 2019/2020-EHIS)
Background: Sedentary behaviour is increasingly perceived as a risk factor for the development of diseases and for increased mortality. In particular, increased time spent sitting in combination with low physical activity seems to have negative health consequences.
Methods: In the nationwide cross-sectional study German Health Update (GEDA 2019/2020-EHIS), the indicator âsittingâ was captured by the self-report of the participants.
Results: For at least eight hours a day, 16.7% of women and 22.3% of men sit: Men more often than women, younger persons more often than older persons and the proportion increases significantly from the low to the high education group. Similarly, about one fifth of adults in Germany sit for at least four hours a day and do not engage in physical activity in their leisure time.
Conclusion: The results indicate that preventive measures are needed to reduce time spent sitting and increase physical activit
Performance of the ATLAS Precision Muon Chambers under LHC Operating Conditions
For the muon spectrometer of the ATLAS detector at the large hadron collider
(LHC), large drift chambers consisting of 6 to 8 layers of pressurized drift
tubes are used for precision tracking covering an active area of 5000 m2 in the
toroidal field of superconducting air core magnets. The chambers have to
provide a spatial resolution of 41 microns with Ar:CO2 (93:7) gas mixture at an
absolute pressure of 3 bar and gas gain of 2?104. The environment in which the
chambers will be operated is characterized by high neutron and background with
counting rates of up to 100 per square cm and second. The resolution and
efficiency of a chamber from the serial production for ATLAS has been
investigated in a 100 GeV muon beam at photon irradiation rates as expected
during LHC operation. A silicon strip detector telescope was used as external
reference in the beam. The spatial resolution of a chamber is degraded by 4 ?m
at the highest background rate. The detection efficiency of the drift tubes is
unchanged under irradiation. A tracking efficiency of 98% at the highest rates
has been demonstrated
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