4,335 research outputs found
The biochemical, physiological, and metabolic evaluation of human subjects wearing pressure suits and on a diet of precooked freeze dehydrated foods
Biochemical, physiological and metabolic evaluation of human subjects wearing pressure suits and on diet of precooked frozen dehydrated food
Boosting clinical performance: The impact of enhanced final year placements.
BACKGROUND: This study follows on from a study that investigated how to develop effective final year medical student assistantship placements, using multidisciplinary clinical teams in planning and delivery. AIMS: This study assessed the effects on objective structured clinical examination (OSCE) performance of the in-course enhanced "super-assistantship" placement introduced to a randomly selected sample of 2013-14 final year medical students at Leeds medical school. METHODS: Quantitative data analysis was used to compare the global grades of OSCE stations between students who undertook this placement against those who did not. RESULTS: There was a small overall improvement in the "super-assistantship" student scores across the whole assessment (effect size = 0.085). "Pre-op Capacity", "Admissions Prescribing" and "Hip Pain" stations had small-medium effect sizes (0.226, 0.215, and 0.214) in favor of the intervention group. Other stations had small effect sizes (0.107-0.191), mostly in favor of the intervention group. CONCLUSIONS: The "super-assistantship" experience characterized by increasing student responsibility on placement can help to improve competence and confidence in clinical decision-making "in a simulated environment". The clinical environment and multidisciplinary team must be ready and supported to provide these opportunities effectively. Further in-course opportunities for increasing final year student responsibility should be developed
The Biochemical, Physiological, and Metabolic Evaluation of Human Subjects in a Life Support Systems Evaluator and on a Diet of Precooked Freeze Dehydrated Foods Final Report, 12 Oct. - 24 Nov. 1964
Human water, caloric, and protein requirements in simulated life support system with dietary restrictio
Dimensions of Temperament: Affect Intensity and Consumer Lifestyles
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/142080/1/jcpy231.pd
Biochemical and physiological evaluation of human subjects in a life support systems evaluator
Biochemical and physiological evaluation of human nutritional requirements under simulated aerospace condition
Ultracompact X-ray Binaries in Globular Clusters: Variability of the Optical Counterpart of X1832-330 in NGC 6652
Evidence is emerging that the luminous X-ray sources in the cores of globular
clusters may often consist of, or perhaps even as a class be dominated by,
ultracompact (P < 1 hr) binary stars. To the two such systems already known, in
NGC 6624 and NGC 6712, we now add evidence for two more. We detect large
amplitude variability in the candidate optical counterpart for the X-ray source
in the core of NGC 6652. Although the available observations are relatively
brief, the existing Hubble Space Telescope data indicate a strong 43.6 min
periodic modulation of the visible flux of semi-amplitude 30%. Further,
although the orbital period of the source in NGC 1851 is not yet explicitly
measured, we demonstrate that previous correlations of optical luminosity with
X-ray luminosity and accretion disk size, strengthened by recent data, strongly
imply that the period of that system is also less than 1 hr. Thus currently
there is evidence that 4 of the 7 globular cluster X-ray sources with
constrained periods are ultracompact, a fraction far greater than that found in
X-ray binaries the field.Comment: 10 pages including 2 figures and 1 table. Accepted for publication in
The Astrophysical Journal Letter
The biochemical, physiological, and metabolic evaluation of human subjects in a life support systems evaluator and on a liquid food diet Final report, 12 Jun. 1964 - 23 Feb. 1965
Biochemical, physiological, and metabolic analysis of subjects in life support system on liquid food diets during space environment simulatio
Fluctuating surface-current formulation of radiative heat transfer for arbitrary geometries
We describe a fluctuating surface-current formulation of radiative heat
transfer, applicable to arbitrary geometries, that directly exploits standard,
efficient, and sophisticated techniques from the boundary-element method. We
validate as well as extend previous results for spheres and cylinders, and also
compute the heat transfer in a more complicated geometry consisting of two
interlocked rings. Finally, we demonstrate that the method can be readily
adapted to compute the spatial distribution of heat flux on the surface of the
interacting bodies
X-Ray Spectroscopy of the Low-Mass X-ray Binaries 2S 0918-549 and 4U1543-624: Evidence for Neon-Rich Degenerate Donors
We present high-resolution spectroscopy of the neutron-star/low-mass X-ray
binaries 2S 0918-549 and 4U 1543-624 with the High Energy Transmission Grating
Spectrometer onboard the Chandra X-ray Observatory and the Reflection Grating
Spectrometer onboard XMM-Newton. Previous low-resolution spectra of both
sources showed a broad line-like feature at 0.7 keV that was originally
attributed to unresolved line emission. We recently showed that this feature
could also be due to excess neutral Ne absorption, and this is confirmed by the
new high-resolution Chandra spectra. The Chandra spectra are each well fit by
an absorbed power-law + blackbody model with a modified Ne/O number ratio of
0.52+/-0.12 for 2S 0918-549 and 1.5+/-0.3 for 4U 1543-624, compared to the
interstellar-medium value of 0.18. The XMM spectrum of 2S 0918-549 is best fit
by an absorbed power-law model with a Ne/O number ratio of 0.46+/-0.03,
consistent with the Chandra result. On the other hand, the XMM spectrum of 4U
1543-624 is softer and less luminous than the Chandra spectrum and has a
best-fit Ne/O number ratio of 0.54+/-0.03. The difference between the measured
abundances and the expected interstellar ratio, as well as the variation of the
column densities of O and Ne in 4U 1543-624, supports the suggestion that there
is absorption local to these binaries. We propose that the variations in the O
and Ne column densities of 4U 1543-624 are caused by changes in the ionization
structure of the local absorbing material. It is important to understand the
effect of ionization on the measured absorption columns before the abundance of
the local material can be determined. This work supports our earlier suggestion
that 2S 0918-549 and 4U 1543-624 are ultracompact binaries with Ne-rich
companions.Comment: 11 pages, 5 figures, major revisions including addition of XMM
spectral analysis, accepted for publication in the Astrophysical Journal,
vol. 59
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