926 research outputs found
Islam and socially responsible business conduct: An empirical research among Dutch entrepreneurs
This paper explores the relationship between the Islamic religion and the level of
socially responsible business conduct (SRBC) of Islamic entrepreneurs. We find that
the common idea of SRBC corresponds with the view of business in the Islam,
although there are also some notable differences. We also find that Muslim
entrepreneurs attach a higher weight to specific elements of SRBC than non-
Muslims. But, on the other hand, we find that Muslims are less involved with applying
SRBC in practice than non-Muslim managers. Furthermore, values and norms
derived from the Islamic religion motivate entrepreneurs to contribute more to SRBC
and lead to a higher commitment to specific aspects of SRBC compared to
individually developed values and norms. Finally, the view of human nature of the
Islam, preaching the natural goodness of man as a social being, leads to a positive
view of SRBC
Linear Block Coding for Efficient Beam Discovery in Millimeter Wave Communication Networks
The surge in mobile broadband data demands is expected to surpass the
available spectrum capacity below 6 GHz. This expectation has prompted the
exploration of millimeter wave (mm-wave) frequency bands as a candidate
technology for next generation wireless networks. However, numerous challenges
to deploying mm-wave communication systems, including channel estimation, need
to be met before practical deployments are possible. This work addresses the
mm-wave channel estimation problem and treats it as a beam discovery problem in
which locating beams with strong path reflectors is analogous to locating
errors in linear block codes. We show that a significantly small number of
measurements (compared to the original dimensions of the channel matrix) is
sufficient to reliably estimate the channel. We also show that this can be
achieved using a simple and energy-efficient transceiver architecture.Comment: To appear in the proceedings of IEEE INFOCOM '1
Islam and socially responsible business conduct: An empirical research among Dutch entrepreneurs
This paper explores the relationship between the Islamic religion and the level of socially responsible business conduct (SRBC) of Islamic entrepreneurs. We find that the common idea of SRBC corresponds with the view of business in the Islam, although there are also some notable differences. We also find that Muslim entrepreneurs attach a higher weight to specific elements of SRBC than non- Muslims. But, on the other hand, we find that Muslims are less involved with applying SRBC in practice than non-Muslim managers. Furthermore, values and norms derived from the Islamic religion motivate entrepreneurs to contribute more to SRBC and lead to a higher commitment to specific aspects of SRBC compared to individually developed values and norms. Finally, the view of human nature of the Islam, preaching the natural goodness of man as a social being, leads to a positive view of SRBC.Business conduct; Dutch entrepreneurs
Laser-initiated primary and secondary nuclear reactions in Boron-Nitride
International audienceNuclear reactions initiated by laser-accelerated particle beams are a promising new approach to many applications, from medical radioisotopes to aneutronic energy production. We present results demonstrating the occurrence of secondary nuclear reactions, initiated by the primary nuclear reaction products, using multicomponent targets composed of either natural boron (B) or natural boron nitride (BN). The primary proton-boron reaction (p + 11B → 3 α + 8.7 MeV), is one of the most attractive aneutronic fusion reaction. We report radioactive decay signatures in targets irradiated at the Elfie laser facility by laser-accelerated particle beams which we interpret as due to secondary reactions induced by alpha (α) particles produced in the primary reactions. Use of a second nanosecond laser beam, adequately synchronized with the short laser pulse to produce a plasma target, further enhanced the reaction rates. High rates and chains of reactions are essential for most applications
Jellyfish stings trigger gill disorders and increased mortality in farmed sparus aurata (linnaeus, 1758) in the mediterranean sea
Jellyfish are of particular concern for marine finfish aquaculture. In recent years repeated mass mortality episodes of farmed fish were caused by blooms of gelatinous cnidarian stingers, as a consequence of a wide range of hemolytic, cytotoxic, and neurotoxic properties of associated cnidocytes venoms. The mauve stinger jellyfish Pelagia noctiluca (Scyphozoa) has been identified as direct causative agent for several documented fish mortality events both in Northern Europe and the Mediterranean Sea aquaculture farms. We investigated the effects of P. noctiluca envenomations on the gilthead sea bream Sparus aurata by in vivo laboratory assays. Fish were incubated for 8 hours with jellyfish at 3 different densities in 300 l experimental tanks. Gill disorders were assessed by histological analyses and histopathological scoring of samples collected at time intervals from 3 hours to 4 weeks after initial exposure. Fish gills showed different extent and severity of gill lesions according to jellyfish density and incubation time, and long after the removal of jellyfish from tanks. Jellyfish envenomation elicits local and systemic inflammation reactions, histopathology and gill cell toxicity, with severe impacts on fish health. Altogether, these results shows P. noctiluca swarms may represent a high risk for Mediterranean finfish aquaculture farms, generating significant gill damage after only a few hours of contact with farmed S. aurata. Due to the growth of the aquaculture sector and the increased frequency of jellyfish blooms in the coastal waters, negative interactions between stinging jellyfish and farmed fish are likely to increase with the potential for significant economic losses
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