Results 151 to 160 of about 47,024 (285)

Building Theory from Quantitative Studies, or, How to Fit SEM Models [PDF]

open access: yes, 2009
Covariance-based structural equation modeling (CB-SEM) is an increasingly popular technique for analyzing quantitative data in Information Systems research. As such, it is traditionally viewed as a method to test theory, rather than build it.
Evermann, Joerg, Tate, Mary
core   +1 more source

High‐Resolution Multispectral Photovoltaic Imagers from Visible to Short‐Wave Infrared

open access: yesAdvanced Science, EarlyView.
We demonstrate a monolithic quad‐spectral imager that seamlessly integrates visible and short‐wave infrared detection on a single chip. Through direct photopatterning of an all‐polymer bulk heterojunction and colloidal quantum dots, the device achieves high‐resolution (640 × 512) imaging across 350–2400 nm, enabling multispectral capture for ...
Wanqing Li   +12 more
wiley   +1 more source

Fitting Covariance Models for Theory Generation [PDF]

open access: yes, 2011
Covariance-based structural equation modeling (CB-SEM) is an increasingly popular technique for analyzing quantitative data in Information Systems research. As such, it is traditionally viewed as a method to test theory, rather than build it.
Evermann, Joerg, Tate, Mary
core   +1 more source

Glutamine Deprivation Triggers Tribbles Homolog 3 Dependent G‐Quadruplex Resolution to Maintain DNA Repair and Tumor Survival

open access: yesAdvanced Science, EarlyView.
Glutamine deprivation triggers transient DNA damage yet activates adaptive repair in hepatocellular carcinoma cells. We identify TRIB3 as a stress‐induced nuclear scaffold that associates with DDX5 and G‐quadruplex DNA atBRCA1 andRAD51AP1 promoters. TRIB3 loss increases G4 accumulation, suppresses HR gene transcription, elevates γ‐H2A.X, and sensitizes
Qiang Ji   +10 more
wiley   +1 more source

APLICAÇÃO DE MODELO DE MENSURAÇÃO DA SATISFAÇÃO DOS USUÁRIOS DE UM SISTEMA DE INFORMAÇÃO ACADÊMICO: ESTUDO DE CASO NA UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE [PDF]

open access: yes, 2017
O sistema de informação proporciona um meio de comunicação e de troca de informações entre os diferentes públicos, tornando a geração e disseminação de informações um processo ágil e eficaz.
CACHINA, ANA CLARA   +5 more
core  

Water‐Soluble Metal Phthalocyanines Enable Molecularly Dispersed Heterogeneous Electrochemical CO2 Conversion

open access: yesAdvanced Science, EarlyView.
Water‐soluble metallophthalocyanines self‐assemble onto the surface of carbon black via π–π interactions, creating highly dispersed and electronically coupled MPcTs/CB, which enables selective CO2‐to‐CO conversion in aqueous media with near‐quantitative Faradaic efficiency and remarkable stability. Optimized flow‐cell operation delivers up to 500 mA cm−
Xiangyu Zhang   +10 more
wiley   +1 more source

Liquid Bismuth Catalyst Enables High‐CO‐Selectivity in CO2 Hydrogenation

open access: yesAdvanced Science, EarlyView.
This work introduces a dynamic liquid bismuth catalyst for efficient CO2‐to‐syngas conversion. Stabilized molten Bi nanodroplets on a defective VOx support enable a reversible Bi3+/Bi0 redox cycle at moderate temperatures. Mechanistic insights reveal that Ni‐Bi dual sites synergistically activate H2 and cleave CO2, leading to high CO selectivity ...
Xinxin Lu   +6 more
wiley   +1 more source

Multiple Indicators and Multiple Causes (MIMIC) Models as a Mixed-Modeling Technique: A Tutorial and an Annotated Example [PDF]

open access: yes, 2015
Formative modeling of latent constructs has produced great interest and discussion among scholars in recent years. However, confusion exists surrounding researchers’ ability to validate these models, especially with covariance-based structural equation ...
Bennett, Rebecca J   +3 more
core   +1 more source

Rapid and Direct Detection of Methamphetamine in Biofluids using a MXene‐Enabled Electrochemical Sensor

open access: yesAdvanced Science, EarlyView.
A MXene‐enhanced electrochemical sensor enables the rapid and direct detection of methamphetamine. Molecular simulations reveal that specific MXene surface functional groups act as key signal amplifiers by facilitating interfacial interactions. The sensor demonstrates high sensitivity and robust performance in complex biological matrices.
Ri Wang   +7 more
wiley   +1 more source

Cryoablation Activates the cGAS–STING‐CXCL10 Axis in Macrophages to Enhance Anti‐Tumor Immunity in NSCLC

open access: yesAdvanced Science, EarlyView.
Tumor dsDNA released by cryoablation is taken up by macrophages, activating the cGAS‐STING signaling pathway. This leads to an expansion of the CXCL10+ macrophage pool and increased secretion of CXCL10, which in turn recruits CXCR3+ T cells from draining lymph nodes into the tumor microenvironment to exert anti‐tumor effects.
Xinxin Zhi   +17 more
wiley   +1 more source

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