16,314 research outputs found
Amino acids and amino sugars in calcified tissues of portunid crabs
Amino acid and amino sugar in calcified tissues of portunid crab
Racial/Ethnic Disparities in Diabetes Care and Outcomes: A Mixed Methods Study
Limited research has examined racial/ethnic differences in diabetes care and outcomes among primary care patients. This study examined racial/ethnic differences in diabetes care and outcomes among an ambulatory patient population and explored patient perceptions of the patient-provider relationship to inform strategies to improve care delivery. Using data from 62,149 adults with diabetes who received care within Atrium Health in 2013, regression models assessed associations between race/ethnicity and the following outcomes: glycated hemoglobin (HbA1c) tests, low density lipoprotein (LDL) and blood pressure (BP) screening, foot and eye exams, and HbA1c, LDL, and BP control. Eleven patients with diabetes and uncontrolled hypertension participated in three focus groups about their perceptions of the patient-provider relationship. Compared to non-Hispanic Whites, non-Hispanic Blacks had 22% to 73% higher odds of receiving screenings (HbA1c, LDL, BP, foot and eye exams;
Compact steep-spectrum sources from the S4 sample
We present the results of 5-GHz observations with the VLA A-array of a sample
of candidate Compact Steep Spectrum sources (CSSs) selected from the S4 survey.
We also estimate the symmetry parameters of high-luminosity CSSs selected from
different samples of radio sources, and compare these with the larger sources
of similar luminosity to understand their evolution and the consistency of the
CSSs with the unified scheme for radio galaxies and quasars. The majority of
CSSs are likely to be young sources advancing outwards through a dense
asymmetric environment. The radio properties of CSSs are found to be consistent
with the unified scheme, in which the axes of the quasars are observed close to
the line of sight, while radio galaxies are observed close to the plane of the
sky.Comment: accepted for publication in mnras; 8 pages, figure 1 with 21 images,
and two additional figures; 2 table
Repurposing of Meropenem and Nadifloxacin for Treatment of Burn Patients?
The escalating number of multidrug resistant pathogens has demanded the swift development of new and potent antibiotics (ref. 2). Metallo-[beta]-lactamases (MBLs) continue to evolve, rendering the latest generation of carbapenem antibiotics useless (ref. 8). SPM-1, a recently discovered MBL, was isolated from a juvenile leukemia patient residing in a hospital in San Palo, Brazil just prior to the patient succumbing to septicemia brought on by Pseudomonas aeruginosa expressing SPM-1 (ref. 8). Screening of the Johns Hopkins Compound library of 1,514 FDA or FAD approved drugs (ref. 1) identified a novel SPM-1 inhibitor that is synergistically compatible with meropenem. Using clinically achievable concentrations, meropenem coupled with nadifloxacin inhibits Pseudomonas aeruginosa expressing SPM-1. This shotgun approach to new drug discovery provided a prompt solution to the grave problem of antibiotic resistant pathogens that are thriving in hospitals today
Circular No. 48, 1903. Oregon Short Line Railroad.
Circular concerning the annual meeting of the National Educational Association
Exploring the geochemistry and shell ultrastructure of bivalves as archives of past ocean acidification events: recent Mytilidae in a natural acidic setting in Ischia (Italy, Mediterranean Sea)
Magnetically-controlled velocity selection in a cold atom sample using stimulated Raman transitions
We observe velocity-selective two-photon resonances in a cold atom cloud in
the presence of a magnetic field. We use these resonances to demonstrate a
simple magnetometer with sub-mG resolution. The technique is particularly
useful for zeroing the magnetic field and does not require any additional laser
frequencies than are already used for standard magneto-optical traps. We verify
the effects using Faraday rotation spectroscopy.Comment: 5 pages, 6 figure
Validation of the CFD code Flow-3D for the free surface flow around the shipsâ hulls
This paper describes the Computational Fluid Dynamics (CFD) calculations that were completed to model the free surface flow around the shipsâ hulls. Published experimental data for the DTRC 5415 combatant model is commonly used for validation of numerical codes.
Simulations were performed using the software Flow-3D, a Reynoldâs Averaged Navier-Stokes (RANS) solver with structured orthogonal mesh. The verification was based on the examination of the flow around the hull for range of speeds and by comparison of the results for resistance obtained by CFD simulations and by experiments. Additional
analysis has been conducted to investigate mesh sensitivity and the implementation of different advection schemes. The second order advection scheme with monotonicity preserving was optimal for the qualitative analysis of the problem under consideration.
This study shows that CFD code Flow-3D has a limited capability to resolve the physics of the flow around the hull. The shape of the free surface and wave distributions around the hull corresponds approximately to the experimental observations.
For quantitative analysis of ship total resistance, Flow-3D shows a lack of accuracy. It appears that the code does not have the capability to properly resolve boundary layer on the hull and properly predict frictional resistance. It can be improved by using only dynamic pressure results and by using some established empirical/experimental approach
for estimating frictional resistance.
The multi-block grids and the different turbulent
models are being used to obtain valid numerical results that are crucial for making sound design decision
Radio Observations of the Black Hole Candidate GX 339-4
The black hole candidate GX 339-4 was first detected as a variable radio
source by Sood & Campbell-Wilson in May 1994 with the Molonglo Observatory
Synthesis Telescope (MOST). Since then, several observations have been obtained
with the Australian Telescope Compact Array (ATCA) in order to study the radio
behavior of this source in relation to its soft and hard X-ray activity. We
present new results of high resolution radio observations performed with the
ATCA in order to study the jet-like feature observed in GX 339-4 by Fender et
al (1997). From the ATCA lightcurve at 8640 MHz, we find evidence of quenched
radio emission from GX 339-4.Comment: To appear in Proc. 4th Compton Symposium, AIP pres
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