Results 121 to 130 of about 39,437,158 (299)

[Case crossover studies: a conceptual and methodological approach].

Gaceta medica de Mexico, 2010
Case crossover studies are considered as a variant of case control studies, and they have been included in the scientific literature since approximately eighteen years ago. They have also been used in epidemiological research on acute or intermittent exposures that may lead to a number of events including heart attack or cardiac arrest, injuries ...
Jorge, Martín-Rodríguez, Cidronio, Albavera-Hernández, Eduardo, Salazar-Martínez   +2 more
openaire   +1 more source

Polymer‐Grafted Cu(II) Metal–Organic Polyhedra as Scalable, Melt‐Processable Porous Materials

Advanced Science, EarlyView.
The use of a direct synthetic route to obtain polymer‐grafted Cu(II)‐based metal–organic polyhedra gives rise to a low‐cost and scalable cage. This material combines low‐temperature melting, achieving phase changes while preserving cage integrity, and high CO2 uptake exceeding 0.6 mmol g−1.
Alba Cortés‐Martínez, Francisco Sánchez‐Férez, José A. Suárez del Pino, Sergio Royuela, Félix Zamora, Daniel Maspoch, Arnau Carné‐Sánchez   +6 more
wiley   +1 more source

Stock Volatility Increases the Mortality Risk of Major Adverse Cardiovascular Events and Suicide: A Case-Crossover Study of 12 Million Deaths

Engineering
Stock volatility constitutes an adverse psychological stressor, but few large-scale studies have focused on its impact on major adverse cardiovascular events (MACEs) and suicide. Here, we conducted an individual-level time-stratified case-crossover study
Ya Gao, Peng Yin, Haidong Kan, Renjie Chen, Maigeng Zhou   +4 more
doaj   +1 more source

Time-stratified case-crossover studies for aggregated data in environmental epidemiology: a tutorial

The case-crossover design is widely used in environmental epidemiology as an effective alternative to the conventional time-series regression design to estimate short-term associations of environmental exposures with a range of acute events.
Kim, Yoonhee, Madaniyazi, Lina, Tobias, Aurelio   +2 more
core   +1 more source

Validity Assumptions for Use of Case-Crossover and Self-Controlled Case Series Designs.

, 2012
Validity Assumptions for Use of Case-Crossover and Self-Controlled Case Series Designs.
Philippe Ravaud (28576), Marina Esposito-Farèse (118787), Lucie Biard (118786), Florence Tubach (77841), Sandra Nordmann (118785)   +4 more
core   +1 more source

Polybromides Attraction‐Repulsion Regulation Promotes High‐Performance Zinc–Bromine Static Battery

Advanced Science, EarlyView.
Br3− attraction‐repulsion regulation enhances the reversibility and reaction kinetics of Zn–Br static batteries. Coin cell shows a high average discharge voltage of 1.73 V and a fast charge/discharge rate up to 32 mA cm−2. Pouch cell with a high areal capacity of 8.3 mAh cm−2 achieves a real capacity of 365 mAh after 100 cycles.
Jiamin Tang, Ling He, Lei Liu, Huanwei Li, Haichuan He, Jie Wang, Zhengxin Zhu   +6 more
wiley   +1 more source

Dicationic Ion‐Pair Doping Enables Stable and High‐Performing Conducting Polymers for Organic Thermoelectrics

Advanced Science, EarlyView.
TAB–2TFSI enables efficient ion‐pair doping across a wide range of conjugated polymers, where the strongly oxidizing TAB core drives charge transfer, and the TFSI counterions promote favorable ionic compensation. This dicationic dopant promotes uniform dopant distribution, improves structural order, and increases carrier delocalization, establishing a ...
Juhyung Park, Shubhradip Guchait, Tanmay Sinha, Cynthia Verduyckt, Vijitha Ignatious, Tzu‐Yi Yu, Heyi Xia, Altynay Kaidarova, Michael Ng, Siebe Detavernier, Martin Rosenthal, Maristella Alessio, Daniel Escudero, Guy Koeckelberghs, Francisco Molina‐Lopez   +14 more
wiley   +1 more source

Case-Crossover Study

Japanese Journal of Pharmacoepidemiology/Yakuzai ekigaku, 2014
SHIOSAKAI, Kazuhito, KAGIMURA, Tatsuo
openaire   +2 more sources

S176-S183Based Case-Control and Case-Crossover Study

, 2008
Study Design. Population-based, case-control and case-crossover study. Objective. To investigate associations between chiropractic visits and vertebrobasilar artery (VBA) stroke and to contrast this with primary care physician (PCP) visits and VBA stroke.
†, PhD Eleanor Boyle, PhD,* † ‡ § Yaohua He, DC Pierre Côté, MD, FRCPC, ¶� Frank L Silver, PhD Susan J Bondy, PhD Sheilah Hogg-Johnson, DC J David Cassidy   +7 more
core  

Giant Magneto‐Optical Effects in Two‐Dimensional Flat‐Band Antiferromagnets

Advanced Science, EarlyView.
RuOCl2${\rm RuOCl}{_2}$, a two‐dimensional antiferromagnet, hosts energy bands with pronounced directional flatness. This study demonstrates that the flat‐band‐induced optical transitions yield strongly anisotropic absorption and a record‐large magneto‐optical Schafer–Hubert effect, alongside exceptional linear dichroism exceeding 50%.
Ping Yang, Wanxiang Feng, Siyuan Liu, Shan Guan, Liwei Wen, Wei Jiang, Gui‐Bin Liu, Yugui Yao   +7 more
wiley   +1 more source