20,123 research outputs found

    David, Chelsea, & Sarah Simon\u27s Spring: Connecting with God (Book Review)

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    Ethical Leadership in Kazakhstan: An Exploratory Study

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    This study measured ethical leadership perceptions utilizing a new corporate culture scale in a Central Asian country. Ethical leadership ratings from 103 Kazakhstani employees were used to determine how they perceived their managers in terms of being moral people and moral managers. Results indicate that managers are perceived as relatively weaker moral managers as compared to moral persons. Holding employees accountable for their actions is the lowest rated aspect of the moral manager. Definitions of moral persons and moral managers in Kazakhstan vary somewhat from an American culture-oriented ethical leadership model. Implications for theory and practice are discussed

    Multi-spectral and thermal scanner experiments along the Massachusetts coastline Final report

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    Aerial multispectral and infrared scanning of Massachusetts coastlin

    System engineering considerations in spacecraft design

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    System engineering considerations in spacecraft desig

    Genetic diversity, taxonomy and legumins implications of seed storage protein profiling in Fabaceae

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    Proteomic evidences can be pivotal to the discovery of new plant proteins and plant relationships, due to the diversity of form it can reveal. Seed storage protein profiles of 20 Fabaceae species: 4 grain - legumes and 16 non-pulses; of 16 genera and 10 tribes were analysed by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) to estimate protein content diversity and the possible genetic relatedness.28.3% similarity and 71.7% proteomic polymorphism was scored for the species. The high variability expressed by the lot reflects the genetic diversity amongst Fabaceae population. Dendrogram based on the proteomic data clustered the species into four groups. Aside two species, Albizia lebbeck and Albizia zygia belonging to the tribe Ingeae and those of the tribe Caesalpinieae, the other species clustered with several other non-traditional cohorts resulting in a rearrangement that showed least semblance with phylogenetic relationships based on traditional morphology taxonomic delimitation. The similarity in profiles can be preliminarily forensic for proteins of importance whether for nutritional, industrial or for improvement of existing crops or for entirely new plants as crops. The protein mix, and the resultant relationship based on seed storage proteins instigates a review of erstwhile taxonomic, agricultural and research perspectives for the Fabaceae

    Evaluating the Relationship Between Running Times and DNA Sequence Sizes using a Generic-Based Filtering Program.

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    Generic programming depends on the decomposition of programs into simpler components which may be developed separately and combined arbitrarily, subject only to well- defined interfaces. Bioinformatics deals with the application of computational techniques to data present in the Biological sciences. A genetic sequence is a succession of letters which represents the basic structure of a hypothetical DNA molecule, with the capacity to carry information. This research article studied the relationship between the running times of a generic-based filtering program and different samples of genetic sequences in an increasing order of magnitude. A graphical result was obtained to adequately depict this relationship. It was also discovered that the complexity of the generic tree program was O (log2 N). This research article provided one of the systematic approaches of generic programming to Bioinformatics, which could be instrumental in elucidating major discoveries in Bioinformatics, as regards efficient data management and analysis

    A Stark decelerator on a chip

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    A microstructured array of 1254 electrodes on a substrate has been configured to generate an array of local minima of electric field strength with a periodicity of 120 ÎŒ\mum about 25 ÎŒ\mum above the substrate. By applying sinusoidally varying potentials to the electrodes, these minima can be made to move smoothly along the array. Polar molecules in low-field seeking quantum states can be trapped in these traveling potential wells. Recently, we experimentally demonstrated this by transporting metastable CO molecules at constant velocities above the substrate [Phys. Rev. Lett. 100 (2008) 153003]. Here, we outline and experimentally demonstrate how this microstructured array can be used to decelerate polar molecules directly from a molecular beam. For this, the sinusoidally varying potentials need to be switched on when the molecules arrive above the chip, their frequency needs to be chirped down in time, and they need to be switched off before the molecules leave the chip again. Deceleration of metastable CO molecules from an initial velocity of 360 m/s to a final velocity as low as 240 m/s is demonstrated in the 15-35 mK deep potential wells above the 5 cm long array of electrodes. This corresponds to a deceleration of almost 10510^5 gg, and about 85 cm−1^{-1} of kinetic energy is removed from the metastable CO molecules in this process.Comment: 17 pages, 6 figure

    Strategies and challenges to facilitate situated learning in virtual worlds post-Second Life

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    Virtual worlds can establish a stimulating environment to support a situated learning approach in which students simulate a task within a safe environment. While in previous years Second Life played a major role in providing such a virtual environment, there are now more and more alternative—often OpenSim-based—solutions deployed within the educational community. By drawing parallels to social networks, we discuss two aspects: how to link individually hosted virtual worlds together in order to implement context for immersion and how to identify and avoid “fake” avatars so people behind these avatars can be held accountable for their actions
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