Results 71 to 80 of about 211,693 (216)

Prevalence of Internet Addiction and Associated Psychological Co-morbidities among College Students in Bhutan

open access: yesJournal of Nepal Medical Association, 2018
Introduction: Globally 3.5 billion people have access to internet and most of them are young adults and adolescents. In South Asia, Bhutan has the highest proportion of population with internet access at 37% in 2016.
Karma Tenzin   +6 more
doaj   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge   +4 more
wiley   +1 more source

Extreme heat disproportionately increases severe road traffic crashes in high conflict settings and among vulnerable road users in California

open access: yesDiscover Cities
Emerging evidence suggests that extreme heat elevates road-traffic injuries, undermining international road safety efforts like Vision Zero as global warming intensifies.
Cheng-Kai Hsu   +3 more
doaj   +1 more source

Toward Iran’s health system regionalization: A qualitative approach

open access: yesJournal of Education and Health Promotion
BACKGROUND: Regionalized health systems are expected to provide an integrated chain of services for a defined population. However, developing such systems is possible only through alignment across policy, administrative/coordinative, and operational ...
Mohamad Eskandarian   +3 more
doaj   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler   +4 more
wiley   +1 more source

Nanoplatforms for Sentinel and Tumor‐Draining Lymph Node Mapping: From Visualization to Pathway‐Informed Staging

open access: yesAdvanced Healthcare Materials, EarlyView.
Lymphotropic nanoplatforms integrate multimodal imaging with therapeutic guidance to map sentinel and tumor‐draining lymph nodes, revealing functional drainage, metastatic involvement, and nodal accessibility, while providing mechanistic insight to support precision surgical and therapeutic interventions.
Xu Chen   +7 more
wiley   +1 more source

A Lightweight, 3D‐Printable, Low‐Cost, “One‐Click” Dorsal Skin Window for High‐Quality Long‐Term Multimodal Subcutaneous Tumor Imaging

open access: yesAdvanced Healthcare Materials, EarlyView.
An innovative, lightweight 3D‐printed skinfold chamber system is presented for long‐term intravital imaging. This affordable, biocompatible platform simplifies surgical implantation and allows high‐resolution, multimodal visualization of the tumor microenvironment for up to four weeks.
Iván Cortés Domínguez   +9 more
wiley   +1 more source

Instituto Mesoamericano de Salud Pública: órgano de apoyo técnico y fortalecimiento del Sistema Mesoamericano de Salud Pública Mesoamerican Public Health Institute: Technical support and capacity strengthening arm of the Mesoamerican Public Health System

open access: yesSalud Pública de México, 2011
OBJETIVO: El Instituto Mesoamericano de Salud Pública (IMSP) se constituyó en 2009 como órgano técnico del Sistema Mesoamericano de Salud Pública (SMSP) y la Red Virtual de Instituciones Académicas.
Miguel A González-Block   +3 more
doaj  

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora   +17 more
wiley   +1 more source

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