Results 111 to 120 of about 3,850,072 (298)

Study on the Reaction Mechanism of RuOx and Its Enhanced Hydrogen Evolution Reaction Activity

open access: yesAdvanced Science, EarlyView.
In situ Raman spectroscopy and DFT calculations reveal that, prior to the onset of HER, the surface of RuOx undergoes reversible reduction and structural reconstruction. The resulting Ru(II)O/Ru(IV)O2 configuration is identified as the true catalytically active species.
Liquan Zhang   +9 more
wiley   +1 more source

Reducing Infectious Diseases in the U.S.: Focus on HIV/AIDS and Hepatitis [PDF]

open access: yes, 2009
Offers arguments for the efficacy of needle exchange programs in reducing infections among drug users and against the ban on using federal funds for such programs.

core  

Vascularized Liver‐on‐a‐Microsphere Reveals Alanine‐Glucose Metabolism‐Driven Regulation of Liver Function and Injury

open access: yesAdvanced Science, EarlyView.
A vascularized liver‐on‐a‐microsphere system is developed to recreate lobule‐like cellular organization and endothelial barrier function within compartmentalized hydrogel particles. The platform enhances hepatic performance and reveals alanine‐glucose cycle activation linked to improved detoxification capacity, offering a high‐throughput microscale ...
Jingyang Li   +9 more
wiley   +1 more source

A Machine Vision‐Guided Microphysiological Platform With Automated Microfluidics Enables Longitudinal Biomarker Monitoring and Emulation of Translationally Relevant Exposure Scenarios

open access: yesAdvanced Science, EarlyView.
A pneumatically actuated multi‐tissue microphysiological system is integrated with AI‐based machine vision and automatic sampling and replenishment systems. The platform allows for the emulation of translationally relevant long‐term pharmacokinetic exposure scenarios for multiple weeks while enabling longitudinal monitoring of response biomarkers ...
Jibbe Keulen   +15 more
wiley   +1 more source

Loss of SHP1 in Spinal Astrocytes Triggers T‐Lymphocyte Infiltration and Nociceptive Hypersensitivity

open access: yesAdvanced Science, EarlyView.
Astrocyte‐specific SHP1 deletion disrupts astrocyte–vascular interactions and compromises BBB integrity while enhancing STAT1‐dependent CXCL10 expression. These changes synergistically promote peripheral CD4+ and CD8+ T‐cell infiltration into the SDH. The infiltrating T cells secrete IFN‐γ, which in turn activates microglia.
Lan‐Xing Yi   +7 more
wiley   +1 more source

Evolución de la necesidad y cobertura de los programas de tratamiento con sustitutivos opioides e intercambio de jeringas en las prisiones españolas, 1992-2009

open access: yesRevista Española de Sanidad Penitenciaria
Introducción: España es de los pocos países que ha implementado generalizadamente tratamientos con sustitutivos opioides (TSO) y programas de intercambio de jeringas (PIJ) para los consumidores de drogas en prisión.
L. de la Fuente   +5 more
doaj  

Phase‐Dependent Oxygen Defect Energetics in Epitaxial NbN/AlN/NbN Films

open access: yesAdvanced Science, EarlyView.
Phase dependent oxygen defect energetics in epitaxial δ‐NbN/AlN/δ‐NbN and β‐Nb2N/AlN/β‐Nb2N trilayers. Atomic‐scale analysis and first‐principles calculations reveal distinct oxygen incorporation pathways across NbN polymorphs. Layer resolved defect formation energies show that O is energetically more favorable within δ‐NbN electrodes, whereas in β ...
Prachi Garg   +10 more
wiley   +1 more source

Tribally-affiliated syringe services programs in the United States: a brief report

open access: yesHarm Reduction Journal
Background Few studies have examined the implementation of syringe services programs (SSPs) that serve Indigenous people who inject drugs in the United States (US).
Sean T. Allen   +9 more
doaj   +1 more source

The evaluation of needle exchange programs. [PDF]

open access: yesAmerican Journal of Public Health, 1994
D Vlahov, R S Brookmeyer
openaire   +1 more source

Pharmacy-based needle exchange (PBNX) schemes in South East England: a survey of service providers

open access: yes, 2000
Aims. To describe the activities of service providers with regard to (i) the business operation and policies defining pharmacy-based needle exchange (PBNX) in South East England; (ii) the day-to-day work of PBNX outlets from the provider perspective; and
Sheridan, J   +5 more
core   +1 more source

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