Results 71 to 80 of about 14,053,384 (305)

Finite Element Analysis to model ischemia experienced in the development of device related pressure ulcers. [PDF]

open access: yes, 2019
Pressure ulcers are a common occurrence of damage to skin. Severity ranges from slightly discoloured skin to full thickness tissue damage which can be fatal in some cases.
Dictionary of Nursing   +12 more
core   +2 more sources

Band gap closure, incommensurability and molecular dissociation of dense chlorine

open access: yesNature Communications, 2019
Molecular systems are predicted to transform into atomic solids and be metallic at high pressure; this was observed for the diatomic elements iodine and bromine. Here the authors access the higher pressures needed to observe the dissociation in chlorine,
Philip Dalladay-Simpson   +8 more
doaj   +1 more source

Discovery of the Baijifeng impact structure in Tonghua, Jilin, China

open access: yesMatter and Radiation at Extremes, 2023
An impact structure 1400 m in diameter, formed by a bolide impact, has been discovered on Baijifeng Mountain in Tonghua City in Northeast China’s Jilin province. The impact structure takes the form of a cirque-shaped depression on the top of the mountain
Ming Chen   +5 more
doaj   +1 more source

High-pressure study of substrate material ScAlMgO4

open access: yes, 2011
We report on the structural properties of ScAlMgO4 studied under quasi-hydrostatic pressure using synchrotron high-pressure x-ray diffraction up to 40 GPa. We also report on single-crystal studies of ScAlMgO4 performed at 300 K and 100 K.
A. C. Larson   +7 more
core   +1 more source

Use of blood pressure lowering drugs in the prevention of cardiovascular disease: meta-analysis of 147 randomised trials in the context of expectations from prospective epidemiological studies

open access: yesBritish medical journal, 2009
Objectives To determine the quantitative efficacy of different classes of blood pressure lowering drugs in preventing coronary heart disease (CHD) and stroke, and who should receive treatment. Design Meta-analysis. Data source Medline (1966-2007).
M. Law, J. Morris, N. Wald
semanticscholar   +1 more source

Author Correction: Band gap closure, incommensurability and molecular dissociation of dense chlorine

open access: yesNature Communications, 2019
The original version of this Article omitted references to previous experimental reports on solid hydrogen that are relevant for a full understanding of the context of the previous work. The added references are: 47. Akahama, Y. et al.
Philip Dalladay-Simpson   +8 more
doaj   +1 more source

Pressure Ulcer Prevention System [PDF]

open access: yes, 2018
Pressure ulcers, also known as bedsores, are a widespread but often understated problem. A pressure ulcer is an injury that develops with constant pressure on an area of skin for a long time.
Palomares, Rey-David, Rao, Ojus
core   +1 more source

Pressure shift of the superconducting T_c of LiFeAs

open access: yes, 2009
The effect of hydrostatic pressure on the superconductivity in LiFeAs is investigated up to 1.8 GPa. The superconducting transition temperature, T_c, decreases linearly with pressure at a rate of 1.5 K/GPa.
A. M. Guloy   +11 more
core   +1 more source

The pressure moments for two rigid spheres in low-Reynolds-number flow [PDF]

open access: yes, 1993
The pressure moment of a rigid particle is defined to be the trace of the first moment of the surface stress acting on the particle. A Faxén law for the pressure moment of one spherical particle in a general low-Reynolds-number flow is found in terms of ...
Brady, J. F.   +2 more
core   +1 more source

Pressure effects on charge, spin, and metal-insulator transitions in narrow bandwidth manganite Pr$_{1-x}$Ca$_{x}$MnO$_{3}$

open access: yes, 2003
Pressure effects on the charge and spin states and the relation between the ferromagnetic and metallic states were explored on the small bandwidth manganite Pr$_{1-x}$Ca$_{x}$MnO$_{3}$ (x = 0.25, 0.3, 0.35).
A. Guha   +7 more
core   +1 more source

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