1,755 research outputs found
Low prevalence of methicillin-resistant Staphylococcus aureus (MRSA) carriage in women from former Yugoslavia living in Switzerland
Low prevalence of methicillin-resistant Staphylococcus aureus (MRSA) carriage in women from former Yugoslavia living in Switzerland
It is erroneous to draw too many conclusions about global university rankings. Making a university’s reputation rest on the subjective judgement of senior academics and over-reliance on interpreting and utilising secondary data from bibliometrics and peer assessments have created an enmeshed culture of performativity and over-emphasis on productivity. This trend has exacerbated unhealthy competition and mistrust within the academic community and also discord outside its walls. Surely if universities are to provide service and thrive with the advancement of knowledge as a primary objective, it is important to address the methods, concepts, and representation necessary to move from an emphasis on quality assurance to an emphasis on quality enhancement.This overview offers an analysis of the practice of international ranking. US News and World Report Best Global Universities Rankings, the Times Supplement World University Rankings, and the Shanghai Jiao Tong University Academic Ranking of World Universities are analysed. While the presence of Nobel laureates in the hard sciences has been seized upon for a number of years as quantifiable evidence of producing world-class university education, Nobel laureates in peace and literature have been absent from such rankings. Moreover, rankings have been based on employment rather than university affiliation. Previously unused secondary data from institutions where Nobel peace and literature laureates completed their terminal degrees are presented. The purpose has been to determine whether including peace and literature laureates might modify rankings. A caveat: since the presence of awarded Nobel laureates affiliated at various institutions results in the institutions receiving additional ranking credit in the hard sciences of physics, chemistry, medicine, and economic sciences, this additional credit is not recognised in the approach used in this study. Among other things, this study suggests that if educational history were used in assembling the rankings as opposed to one’s university affiliation, conclusions might be very different
A Possible Detection of Occultation by a Proto-planetary Clump in GM Cephei
GM Cep in the young (~ 4 Myr) open cluster Trumpler 37 has been known to be an abrupt variable and to have a circumstellar disk with very active accretion. Our monitoring observations in 2009–2011 revealed the star to show sporadic ?are events, each with brightening of . 0.5 mag lasting for days. These brightening events, associated with a color change toward the blue, should originate from an increased accretion activity. Moreover, the star also underwent a brightness drop of ~ 1 mag lasting for about a month, during which the star became bluer when fainter. Such brightness drops seem to have a recurrence time scale of a year, as evidenced in our data and the photometric behavior of GM Cep over a century. Between consecutive drops, the star brightened gradually by about 1 mag and became blue at peak luminosity. We propose that the drop is caused by obscuration of the central star by an orbiting dust concentration. The UX Orionis type of activity in GM Cep therefore exemplifies the disk inhomogeneity process in transition between grain coagulation and planetesimal formation in a young circumstellar disk
Weekend diagnosis of Escherichia coli urinary tract infection does not predict poor outcome
It has been suggested that mortality is higher in patients admitted to hospitals during the weekend. The objective of this study was to compare outcomes in patients with E. coli urinary tract infection (UTI) depending on the hospital admission day. For this purpose, a secondary analysis of data from a prospective cohort of patients with E. coli UTI was conducted. Weekend diagnosis of UTI was not associated with higher mortality. However, mortality was associated with sepsis, sepsis-induced hypotension and intensive care unit (ICU) admission. Sepsis-induced hypotension and ICU admission were independent determinants of mortality. The results indicate that indicators of severity of illness are associated with higher mortality in patients with UTI rather than the time of diagnosis
Evaluating GAIA performances on eclipsing binaries. I. Orbits and stellar parameters for V505 Per, V570 Per and OO Peg
The orbits and physical parameters of three detached, double-lined A-F
eclipsing binaries have been derived combining H_P, V_T, B_T photometry from
the Hipparcos/Tycho mission with 8500-8750 Ang ground-based spectroscopy,
mimicking the photometric+spectroscopic observations that should be obtained by
GAIA, the approved Cornerstone 6 mission by ESA. This study has two main
objectives, namely (a) to derive reasonable orbits for a number of new
eclipsing binaries and (b) to evaluate the expected performances by GAIA on
eclipsing binaries and the accuracy achievable on the determination of
fundamental stellar parameters like masses and radii. It is shown that a 1%
precision in the basic stellar parameters can be achieved by GAIA on well
observed detached eclipsing binaries provided that the spectroscopic
observations are performed at high enough resolution. Other types of eclipsing
binaries (including semi-detached and contact types) and different spectral
types will be investigated in following papers along this series.Comment: A&A, 11 pages, 5 figures, 5 table
Eficiência de inseticidas, quando aplicados nas sementes de soja, associados ou não com produtos aplicados na parte aérea, no controle de pragas foliares na cultura.
JIPE 2013
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