Results 101 to 110 of about 192,076 (327)

Partner concurrency and HIV infection risk in South Africa

open access: yesInternational Journal of Infectious Diseases, 2016
Background: The relationship between concurrent sexual partnerships and HIV risk is not fully understood. Evidence on the relationship between partner concurrency (one's sexual partner has another partner) and individual HIV risk is limited.
Chris R. Kenyon   +3 more
doaj   +1 more source

Concurrence geometries

open access: yesAdvances in Mathematics, 1983
The paper deals with the problem ''to describe combinatorially the variety of configurations c of hyperplanes which can be constructed, given that the section of the configuration c on a fixed hyperplane H be a given geometric figure''. This is related to a correspondence between plane projections of polyhedra in 3-space and static stresses in the ...
openaire   +2 more sources

Induction TPF followed by concurrent chemoradiotherapy versus concurrent chemoradiotherapy alone in locally advanced hypopharyngeal cancer: a preliminary result of a randomized phase 2 trial [PDF]

open access: green, 2022
Xi Luo   +17 more
openalex   +1 more source

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

open access: yesFEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold   +11 more
wiley   +1 more source

Concurrent sexual partnerships do not explain the HIV epidemics in Africa: a systematic review of the evidence

open access: yesJournal of the International AIDS Society, 2010
The notion that concurrent sexual partnerships are especially common in sub‐Saharan Africa and explain the region's high HIV prevalence is accepted by many as conventional wisdom.
Larry Sawers, Eileen Stillwaggon
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Concurrency of partnerships, consistency with data, and control of sexually transmitted infections

open access: yesEpidemics, 2018
Sexually transmitted infections (STIs) are a globally increasing public health problem. Mathematical models, carefully matched to available epidemiological and behavioural data, have an important role to play in predicting the action of control measures.
Trystan Leng, Matt J. Keeling
doaj   +1 more source

Differential regulation of ZFAS1 splice variants by endoplasmic reticulum stress in hepatocyte cell lines

open access: yesFEBS Open Bio, EarlyView.
ZFAS1 is a lncRNA promoting cell proliferation and migration, exhibiting high expression in various cancers. It is conserved, widely expressed, and produces multiple splice variants with unclear roles. We identified several splice variants in hepatocyte models, and found that inhibiting or suppressing regulators of the unfolded protein response (PERK ...
Sébastien Soubeyrand   +2 more
wiley   +1 more source

Flexible Concurrency Control for Legacy CAD to Construct Collaborative CAD Environment

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
Collaborative CAD (Co-CAD) systems can be constructed based on either 3D kernel or legacy stand-alone CAD systems, which are typically commercial CAD systems such as CATIA, Pro/E and so on.
Xiantao CAI   +4 more
doaj   +1 more source

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