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Search Results: 1 - 10 of 404070 matches for " Pascale M White "
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Colorectal cancer screening of high-risk populations: A national survey of physicians
Pascale M White, Malini Sahu, Michael A Poles, Fritz Francois
BMC Research Notes , 2012, DOI: 10.1186/1756-0500-5-64
Abstract: The average knowledge score was 37 ± 18% among the 512 respondents. Gastroenterologists averaged higher scores compared to internists, and family physicians, p = 0.001. Only 28% of physicians correctly identified the screening initiation point for African-Americans while only 12% of physicians correctly identified the screening initiation point and interval for a patient with a family history of CRC. The most commonly cited barriers to referring high-risk patients for CRC screening were "patient refusal" and "lack of insurance reimbursement."There is a lack of knowledge amongst physicians of the screening guidelines for high-risk populations, based on family history and ethnicity. Educational programs to improve physician knowledge and to reduce perceived barriers to CRC screening are warranted to address health disparities in colorectal cancer.As the third leading cause of malignancy-related death in the United States, colorectal cancer (CRC) is expected to be responsible for over 50,000 deaths in 2011 [1,2]. While various CRC screening efforts have been implemented [3], notable disparities in screening prevalence exist among minorities, those with low incomes, lower education, as well as among individuals without health insurance [3].While some of the barriers that influence CRC screening rates include patient factors, as delineated above [4-6], there are also physician-related factors that should be considered, such as failure to recommend screening to patients [7-9]. The decision whether or not to adopt a screening strategy might be driven by both physician-perceived as well as real barriers such as patient co-morbidities, prior patient refusal of screening and lack of patient compliance, physician forgetfulness, time restrictions, and a lack of reminder systems and test tracking systems [10,11]. In addition, physician knowledge of current CRC screening guidelines may be an important contributing factor to screening referral practices.Primary care physician reco
Frequency and properties of bars in cluster and field galaxies at intermediate redshifts
Fabio D. Barazza,Pascale Jablonka,Vandana Desai,Shardha Jogee,Alfonso Aragon-Salamanca,Gabriella De Lucia,Roberto P. Saglia,Claire Halliday,Bianca M. Poggianti,Julianne J. Dalcanton,Gregory Rudnick,Bo Milvang-Jensen,Stefan Noll,Luc Simard,Douglas I. Clowe,Roser Pello,Simon D. M. White,Dennis Zaritsky
Physics , 2009, DOI: 10.1051/0004-6361/200810352
Abstract: We present a study of large-scale bars in field and cluster environments out to redshifts of ~0.8 using a final sample of 945 moderately inclined disk galaxies drawn from the EDisCS project. We characterize bars and their host galaxies and look for relations between the presence of a bar and the properties of the underlying disk. We investigate whether the fraction and properties of bars in clusters are different from their counterparts in the field. The total optical bar fraction in the redshift range z=0.4-0.8 (median z=0.60), averaged over the entire sample, is 25% (20% for strong bars). For the cluster and field subsamples, we measure bar fractions of 24% and 29%, respectively. We find that bars in clusters are on average longer than in the field and preferentially found close to the cluster center, where the bar fraction is somewhat higher (~31%) than at larger distances (~18%). These findings however rely on a relatively small subsample and might be affected by small number statistics. In agreement with local studies, we find that disk-dominated galaxies have a higher optical bar fraction (~45%) than bulge-dominated galaxies (~15%). This result is based on Hubble types and effective radii and does not change with redshift. The latter finding implies that bar formation or dissolution is strongly connected to the emergence of the morphological structure of a disk and is typically accompanied by a transition in the Hubble type. (abridged)
Evolution of the Early-Type Galaxy Fraction in Clusters since z = 0.8
Luc Simard,Douglas Clowe,Vandana Desai,Julianne J. Dalcanton,Anja von der Linden,Bianca M. Poggianti,Simon D. M. White,Alfonso Aragon-Salamanca,Gabriella De Lucia,Claire Halliday,Pascale Jablonka,Bo Milvang-Jensen,Roberto P. Saglia,Roser Pello,Gregory H. Rudnick,Dennis Zaritsky
Physics , 2009, DOI: 10.1051/0004-6361/20078872
Abstract: We study the morphological content of a large sample of high-redshift clusters to determine its dependence on cluster mass and redshift. Quantitative morphologies are based on bulge+disk decompositions of cluster and field galaxies on deep VLT/FORS2 images of 18 optically-selected clusters at 0.45 < z < 0.80 from the ESO Distant Cluster Survey (EDisCS). Morphological content is given by the early-type galaxy fraction f_et, and early-type galaxies are selected based on their bulge fraction and image smoothness. A set of 158 SDSS clusters is analyzed exactly as the EDisCS sample to provide a robust local comparison. Our main results are: (1) f_et values for the SDSS and EDisCS clusters exhibit no clear trend as a function of sigma. (2) Mid-z EDisCS clusters around sigma = 500 km/s have f_et ~= 0.5 whereas high-z EDisCS clusters have f_et ~= 0.4 (~25% increase over 2 Gyrs). (3) There is a marked difference in the morphological content of EDisCS and SDSS clusters. None of the EDisCS clusters have f_et greater than 0.6 whereas half of the SDSS clusters lie above this value. This difference is seen in clusters of all velocity dispersions. (4) There is a strong correlation between morphology and star formation in SDSS and EDisCS clusters. This correlation holds independent of sigma and z even though the fraction of [OII] emitters decreases from z~0.8 to z~0.06 in all environments. Our results pose an interesting challenge to structural transformation and star formation quenching processes that strongly depend on the global cluster environment and suggest that cluster membership may be of lesser importance than other variables in determining galaxy properties. (ABRIDGED)
Human Face Recognition, Information Processing and Social Behavior in Children with Autism  [PDF]
Pascale Planche
Psychology (PSYCH) , 2014, DOI: 10.4236/psych.2014.511147
Abstract:

The aim of this study was to investigate whether children with high-functioning autism (HFA) and Asperger’s syndrome (AS) can be differentiated from each other and from typically developing children in ability to recognize a human face. The present study included 69 participants: children with autism (high-functioning autism or Asperger’s syndrome, n = 15 per group) and a control group of 39 typically developing children. It involved a face recognition task included in the NEPSY scale. Results showed that the autism groups performed poorer than the typically developing group, but no difference was found between high-functioning and Asperger groups. Both the information processing peculiarities of children with autism and their (interactional and communicative) social impairments could explain their difficulty to recognize human faces.

Fundamentalist physics: why Dark Energy is bad for Astronomy
White, Simon D. M.
High Energy Physics - Phenomenology , 2007, DOI: 10.1088/0034-4885/70/6/R01
Abstract: Astronomers carry out observations to explore the diverse processes and objects which populate our Universe. High-energy physicists carry out experiments to approach the Fundamental Theory underlying space, time and matter. Dark Energy is a unique link between them, reflecting deep aspects of the Fundamental Theory, yet apparently accessible only through astronomical observation. Large sections of the two communities have therefore converged in support of astronomical projects to constrain Dark Energy. In this essay I argue that this convergence can be damaging for astronomy. The two communities have different methodologies and different scientific cultures. By uncritically adopting the values of an alien system, astronomers risk undermining the foundations of their own current success and endangering the future vitality of their field. Dark Energy is undeniably an interesting problem to attack through astronomical observation, but it is one of many and not necessarily the one where significant progress is most likely to follow a major investment of resources.
Learning environments for project management using the Internet as a medium
K. Rennie,M. White
South African Journal of Information Management , 2009, DOI: 10.4102/sajim.v4i3.171
Abstract:
Developing content frameworks for intranets with information audits
A. Abel,M. White
South African Journal of Information Management , 2009, DOI: 10.4102/sajim.v1i1.42
Abstract: To follow
Türk Kütüphanelerinin Geli mesini Kontrol Eden artlar
Carl M. White
Türk Kütüphanecili?i , 1961,
Abstract:
The shelf-edge current north-west of Ireland
M. White,P. Bowyer
Annales Geophysicae (ANGEO) , 2003,
Abstract: Measurements of the slope current at two locations north-west of Ireland have been made between April and December 1994, 40 m above the seabed in a water depth of 660 m. A persistent poleward along-slope current was observed at both locations, with measured means of 10 and 21cms–1 respectively. A CTD transect across the slope near one mooring indicated the presence of a light, warm, saline core of water at the shelf edge. Peak currents were O(50)cms–1, with strongest mean flow at the location with steeper slope. Variability at sub-tidal periods, principally 2–5 and 11–12 days, was apparent. The shorter-period variability was well correlated with coastal sea-level variations measured at a land point near to one of the moorings. The variability in the slope current at this period appeared to be a result of the warm current core movement up/down slope, probably as a result of interaction with higher-mode shelf waves. Some suggestion of a bottom-trapped diurnal wave was also found at one location.
The effects of low temporal frequency modes on minimum variance maps from PLANCK
R. Stompor,M. White
Physics , 2003, DOI: 10.1051/0004-6361:20034185
Abstract: We estimate the effects of low temporal frequency modes in the time stream on sky maps such as expected from the PLANCK experiment -- a satellite mission designed to image the sky in the microwave band. We perform the computations in a semi-analytic way based on a simple model of PLANCK observations, which permits an insight into the structure of noise correlations of PLANCK-like maps, without doing exact, computationally intensive numerical calculations. We show that, for a set of plausible scanning strategies, marginalization over temporal frequency modes with frequencies lower than the spin frequency of the satellite (= 1/60 Hz) causes a nearly negligible deterioration of a quality of the resulting sky maps. We point out that this observation implies that it should be possible to successfully remove effects of long-term time domain parasitic signals from the PLANCK maps during the data analysis stage.
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