196,622 research outputs found
Three contributions to the \"A Half Century of Stellar Pulsation Interpretations\" proceedings
No full textPaper I: "RR Lyrae Variables in Globular Clusters and the Second-Parameter Phenomenon" Authors: M. Catelan, A. V. Sweigart, J. Borissova Abstract: We propose to use RR Lyrae variables in globular clusters to probe the origin of the second-parameter phenomenon. Paper II: "New Possible Variables in the Outer-Halo Globular Cluster Palomar 3" Authors: J. Borissova, N. Spassova, M. Catelan, V. D. Ivanov Abstract: We present a list of ten possible variable stars in the globular cluster Pal 3. Seven are new suspected variables. The variability of the RR Lyr candidate reported by Burbidge & Sandage (1958), as well as of the Pop. II Cepheid and RR Lyr from Gratton & Ortolani (1984), are confirmed. Paper III: "On the Production of Bright RR Lyrae Variables in Metal-Rich Globular Clusters" Authors: A. V. Sweigart, M. Catelan Abstract: See astro-ph/9708174...
Health Impact Assessment for the Lombardia Region (IT)
No full textvalutazione di impatto dell'inquinamento atmosferico
impact assessment of air pollutio
A municipality-level analysis of excess mortality in Italy in the period January-April 2020
No full textthe first confirmed cases of COVID-19 in WHO European Region was reported at the end of January 2020 and, from that moment, the epidemic has been speeding up and rapidly spreading across Europe. The health, social, and economic consequences of the pandemic are difficult to evaluate, since there are many scientific uncertainties and unknowns
A low surface brightness halo surrounding the globular cluster NGC 5694★
No full textWe report on the discovery of an extended stellar halo surrounding the distant Galactic globular cluster NGC 5694, based on new deep (V≃ 24.5) wide-field (24 × 20arcmin2) photometry acquired with the VIMOS at the VLT. Stars with colour and magnitude consistent with the main sequence of the cluster are clearly identified out to r≃ 9arcmin(≃93pc) from the cluster centre, much beyond the tidal radius of the King model that best fits the inner profile (rt= 3.15arcmin). We do not find a clear end of the structure within our field. The overall observed profile cannot be properly fitted with either a King model, an Elson et al. model or a Wilson model; however, it is very smooth and does not show any sign of the break near the tidal radius that is typically observed in stellar systems with tidal tails. The density map we derived does not show evidence of tidal tails, within the considered field. The extra-tidal component contains ≃ 3.5 per cent of the cluster light (mass) and has a surface density profile falling as ~r-3.2. The possible origin of the detected structure is discussed, as a clear-cut conclusion cannot be reached with the available data
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
"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
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
Long-term dietary extra-virgin olive oil rich in polyphenols reverses age-related dysfunctions in motor coordination and contextual memory in mice: role of oxidative stress
No full textThe aim of this study was to evaluate the effects of olive oil phenols on brain aging in mice and to verify whether
the antioxidant and antiinflammatory activities of these polyphenols were involved. C57Bl/6J mice were fed
from middle age to senescence with extra-virgin olive oil (10% wt/wt dry diet) rich in phenols (total polyphenol
dose/day, 6mg/kg). Behavioral tests were employed to assess cognitive, motor, and emotional behavior after 6
or 12 months of treatment. Parameters of oxidative status and inflammation were measured in different brain
areas at the same times and evaluated for correlation with behavioral changes. The treatment with olive oil
phenols improved contextual memory in the step-down test to levels similar to young animals and prevented
the age-related impairment in motor coordination in the rotarod test. This motor effect was correlated with
reduced lipid peroxidation in the cerebellum ( p < 0.05), whereas the memory effect did not correlate with
oxidation or inflammation parameters. In conclusion, this work points out that natural polyphenols contained in
extra-virgin olive oil can improve some age-related dysfunctions by differentially affecting different brain areas.
Such a modulation can be obtained with an olive oil intake that is normal in the Mediterranean area, provided
that the oil has a sufficiently high content of polyphenols
- …
