Results 111 to 120 of about 33,813 (302)

Methanol‐Ethanol Discrimination and Selective Sensing Enabled by Molecular Sieving in Conductive MOFs

open access: yesAdvanced Materials, EarlyView.
Selective methanol sensors are achieved by coating carbon nanotube chemiresistors with two dimensional conductive metal–organic frameworks that incorporate intra‐pore clusters. These confined clusters increase the density of adsorption sites while restricting the transport of larger interfering molecules, particularly ethanol. This sensing architecture
Young‐Moo Jo   +4 more
wiley   +1 more source

University Students’ Perceptions and Experiences of a Suicide Prevention Gatekeeper Program (GUIAS_Program): Improvements and Implications for Education

open access: yesHealth Expectations
Introduction Suicide prevention in university settings presents a significant public health challenge due to the high prevalence of suicidal ideation and behaviours among students.
Patricia García‐Pazo   +3 more
doaj   +1 more source

Self‐Seeded Nucleation of PET in a Benign Solvent Yields a High Modulus Aerogel With Ultra‐Low Thermal Conductivity

open access: yesAdvanced Materials, EarlyView.
A new benign solvent (1,3‐diphenylacetone) enables a simple, safe, and sustainable dissolution and gelation method to convert waste PET into low density, monolithic aerogels with high mechanical strength (E = 20 MPa) and remarkably low thermal conductivity (k = 21.9 to 28.9 mW/m·K).
Kira R. Baugh   +9 more
wiley   +1 more source

Double‐Transition‐Metal MXenes: Multimetallic 2D Platforms for Next‐Generation Biomedicine

open access: yesAdvanced Materials, EarlyView.
The present work explores recent progress in double‐transition‐metal MXenes and focuses on their potential as multifunctional biomedical nanoplatforms whose tunable optical, electronic, mechanical, and surface properties enable imaging, theranostics, antimicrobial activity, biosensing, tissue engineering, and drug delivery.
Parsa Namakiaraghi   +2 more
wiley   +1 more source

Super‐Resolution Ultrasound Based Cell Tracking With Polymeric Nanobubbles

open access: yesAdvanced Materials, EarlyView.
This study presents a super‐resolution ultrasound platform for tracking cells in vivo. Biocompatible polymeric nanobubbles are used as highly echogenic intracellular labels. Following the injection of cells and microbubbles, ultrasound localization microscopy (ULM) can dynamically match the microvascular architecture and individual cell trajectories ...
Junlin Chen   +19 more
wiley   +1 more source

When a gatekeeper denies a researcher access: circumstances of gate closure in social work research

open access: yesResearch Ethics Review
Social work research often requires the exploration of sensitive topics that concern hard-to-reach populations. In order to gain access to these groups, researchers are often forced to rely on gatekeepers during the research process.
Barbora Gřundělová   +2 more
doaj   +1 more source

The home food environment of overweight gatekeepers in the Netherlands

open access: yes, 2015
Objective: The aim of the present study was to gain insight into (i) processed snackfood availability, (ii) processed snack-food salience and (iii) the size of dinnerware among households with overweight gatekeepers.
Vet, E., de   +8 more
core   +1 more source

High‐Sensitivity Terahertz Gas Sensing Enabled by Undercut Metal‐Dielectric‐Metal Metamaterial

open access: yesAdvanced Materials Interfaces, EarlyView.
A terahertz (THz) metamaterial gas sensor is demonstrated using a metal–dielectric–metal (MDM) absorber with an undercut dielectric layer, which enlarges the gas‐replaced volume and strengthens refractive‐index perturbation of the resonant mode. A reflection dip at 0.766 THz is observed, and acetone–nitrogen tests yield concentration‐dependent shifts ...
Naoki Inomata   +2 more
wiley   +1 more source

Gendered Gatekeepers: Barriers to Women in Party-Controlled Candidate Selection

open access: yes, 2022
My dissertation and book project, Gendered Gatekeepers: Barriers to Women in Party-Controlled Candidate Selection, examines how the gatekeepers within political parties evaluate women and men during candidate selection processes.
Phillips, Melanie Lauren
core  

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