198,774 research outputs found
Een crisis hoeft geen ramp te zijn
No full textIn een crisissituatie moeten onder een hoge tijdsdruk complexe beslissingen worden genomen. Verkeerde beslissingen kunnen tot rampzalige situaties leiden. Onder een ramp versta ik een situatie met grote nadelige gevolgen voor een organisatie. Een criris, die goed wordt opgevangen, hoeft niet negatief te zijn, maar kan zelfs positieve gevolgen hebben. Om goede beslissingen te kunnen nemen in voorbereiding op mogelijke crises erg belangrijk
Response of nitrogen oxide emissions to grazer species and plant species composition in temperate agricultural grassland
No full textAgriculture is an important source of the greenhouse gas nitrous oxide (N2O) and the atmospherically important nitric oxide (NO). We evaluated the effects of different grazers and plant species composition on N2O and NO emissions in temperate grassland. Paddocks were grazed rotationally by either cattle or sheep. Mean N2O emissions were 38.7 μg N2O-N m−2 h−1, mean NO emissions 2.4 μg NO-N m−2 h−1. Cumulative NO-N emissions were larger for sheep- than for cattle-grazed paddocks. Plant species composition was insignificant compared to the effect of grazers on N oxide emissions. In a controlled application experiment, plots with cattle excreta showed larger N2O emissions than plots with sheep excreta, reaching peak emissions of 1921 μg N2O-N m−2 h−1 on cattle urine patches compared to 556 μg N2O-N m−2 h−1 on sheep urine patches, related to different N-inputs per excretion. Peak emissions of dung-treated plots were much smaller. The N2O emission factors were 0.4% for cattle urine, 0.5% for sheep urine, 0.05% for cattle dung and 0.09% for sheep dung. N oxide emissions on the paddock scale were larger for sheep- compared to cattle-grazing, despite larger emissions per cattle excretion. We attributed this to the more even spread of sheep excreta compared to cattle excreta
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
Brain asymmetries and sex differences in developmental dyslexia
No full textthirty years ago, geschwind and galaburda (1985a, b, c) hypothesized complex links among genetic factors, prenatal environment, sex, brain asymmetries, and the susceptibility to developmental disorders, in par-ticular, developmental dyslexia. this chapter reviews studies our team conducted on the neuroanatomy of developmental dyslexia. among other results, we replicated galaburda’s original finding of an altered asymme-try of the planum temporale (PT) in dyslexia by using magnetic resonance imaging (MRI) in a large group of children. this difference in asymmetry, however, was only found in boys. we observed that the cortical region ded-icated to visual word recognition (located in the left hemisphere) is thicker in readers who do not have dyslexia than in readers who have dyslexia, but only among girls. we also found that two white matter tracts connect-ing posterior and anterior regions of the brain and participating in reading show different hemispheric asymmetry patterns in children with dyslexia and control children. finally, we discovered a difference in the asymmetry of the depth of the central sulcus (a major fold of the brain) between chil-dren with dyslexia and control children, with a different pattern in boys and in girls. overall, we found that when individuals with dyslexia and control individuals differ in brain anatomy, the differences depend on the cerebral hemisphere, and they are not the same in males and females. In other words, brain asymmetry seems key to understanding the neuroana-tomical basis of dyslexia, and this neuroanatomical basis seems to partly differ between the sexes. Several possible explanations are discussed that are consistent with geschwind and galaburda’s original ideas
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Polarization of radio relics in galaxy clusters
No full textRadio emission in the form of giant radio relics is observed at the periphery of galaxy clusters. This non-thermal emission is an important tracer for cosmic ray electrons and intracluster magnetic fields. One striking observational feature of these objects is their high degree of polarization, which provides information on the magnetic fields at the relics' positions. In this contribution, we test if state-of-the-art high resolution cosmological simulations are able to reproduce the polarization features of radio relics. Therefore, we present a new analysis of high-resolution cosmological simulations to study the polarization properties of radio relics in detail. In order to compare our results with current and future radio observations, we create mock radio observations of the diffuse polarized emission from a massive galaxy cluster using six different projections, for different observing frequencies and for different telescopes. Our simulations suggest that, due to the effect of Faraday rotation, it is extremely difficult to relate the morphology of the polarized emission for observing frequencies below 1.4 GHz to the real magnetic field structure in relics. We can reproduce the observed degree of polarization and also several small-scale structures observed in real radio relics, but further work would be needed to reproduce some large-scale spectacular features as observed in real radio relics, such as the `Sausage' and `Toothbrush' relics
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
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