Results 51 to 60 of about 9,606,964 (338)

Knowledgeable, aware / interested: Young black women's perceptions of pre-exposure prophylaxis

open access: yesFrontiers in Reproductive Health, 2022
PurposeHIV in the United States disproportionately affects young Black women. Pre-exposure prophylaxis (PrEP) is an effective HIV prevention option that has the potential to reduce HIV incidence among HIV-vulnerable populations.
Sadia Haider   +7 more
doaj   +1 more source

Simulation of Primordial Black Holes with large negative non-Gaussianity [PDF]

open access: green, 2022
Albert Escrivà   +3 more
openalex   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

‘Is It Entrepreneurship, or Is It Survival?’: Gender, Community, and Innovation in Boston’s Black Immigrant Micro-Enterprise Spaces

open access: yesSocieties, 2017
Micro-enterprises are typically classified as businesses with fewer than six employees and very small amounts of financial capital. Focusing on black immigrant women’s micro-entrepreneurial ventures in Boston, this paper explores how non-economic forms ...
Ping-Ann Addo
doaj   +1 more source

Blow-up of weak solutions to a chemotaxis system under influence of an external chemoattractant

open access: yes, 2015
We study nonnnegative radially symmetric solutions of the parabolic-elliptic Keller-Segel whole space system \begin{align*} \left\{\begin{array}{c@{\,}l@{\quad}l@{\,}c} u_{t}&=\Delta u-\nabla\!\cdot(u\nabla v),\ &x\in\mathbb{R}^n,& t>0,\\ 0 &=\Delta v+u ...
Black, Tobias
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Black is black !

open access: yesMédecine Buccale Chirurgie Buccale, 2010
Une patiente de 63 ans a consulte son chirurgiendentiste pour une douleur maxillaire gauche. Dans les antecedents, on notait un trouble obsessionnel compulsif traite par sertraline et bromazepam, et l’exerese d’un polype endometrial. A l’examen endobuccal, 25 et 26 presentaient de volumineux amalgames et un traitement endodontique ancien, sans image ...
Jean-Christophe Fricain   +3 more
openaire   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

open access: yesFEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

Building Bear Fences for Your Apiary

open access: yesEDIS, 2021
The American black bear is beloved, but it is also the most damaging vertebrate pest of honey bee apiaries in North America. That is in part because bears and beekeepers often share the same home territory.
Kimberly K. Post, Cameron Jack
doaj  

On the volatility of volatility [PDF]

open access: yes, 2006
The Chicago Board Options Exchange (CBOE) Volatility Index, VIX, is calculated based on prices of out-of-the-money put and call options on the S&P 500 index (SPX). Sometimes called the "investor fear gauge," the VIX is a measure of the implied volatility
Black   +3 more
core   +2 more sources

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