Results 91 to 100 of about 7,367,624 (346)

Impact of sand and dust storms on mortality in Jinan City, China

Frontiers in Public Health
BackgroundSand and dust storms (SDSs) cause considerable health risks worldwide. China is a country seriously affected by SDSs, however only few studies researched the risk of SDS in China.
Chaofan Shen, Mingjun Li, Qingchang Wang, Jinjiao Luan, Jiliang Si, Liangliang Cui   +5 more
doaj   +1 more source

Nurse Staffing Level and Nosocomial Infections: Empirical Evaluation of the Case-Crossover and Case-Time-Control Designs [PDF]

, 2017
The authors compared a case-crossover design, a case-time-control design, and a cohort design to evaluate the effect of nurse staffing level on the risk of nosocomial infections.
Hugonnet, Stéphane, Pittet, Didier, Villaveces, Andrés   +2 more
core  

Correction: Antipsychotic medications and stroke in schizophrenia: A case-crossover study

PLOS ONE, 2019
[This corrects the article DOI: 10.1371/journal.pone.0179424.].
Lian Yu Chen, Lian Yu Chen, Shang Ying Tsai, Chiao Chicy Chen, Chiao Chicy Chen, Chiao Chicy Chen, Chi-Shin Wu, Hsing Cheng Liu, Hsing Cheng Liu, Hsing Cheng Liu, Chian Jue Kuo, Chian Jue Kuo, Chian Jue Kuo, Chun Hung Pan, Chun Hung Pan, Wen Yin Chen, Wen Yin Chen, Shu Yu Yang, Shu Yu Yang   +18 more
openaire   +3 more sources

Enhanced Electromechanical Response in 1D Hybrid Perovskites: Coexistence of Normal and Relaxor Ferroelectric Phases

Advanced Functional Materials, EarlyView.
The dynamic polarization reversal of coexisting normal and relaxor ferroelectrics in 1D TMAPbI₃ (tetramethylammonium, TMA) is deciphered through combined experimental and theoretical approaches. By bridging atomic‐scale motion, macroscopic polarization switching, and depolarization effects, a universal methodology is established to engineer next ...
Chen Xue, Masaru Fujibayashi, Hengming Huang, Chisato Kato, Katsuya Ichihashi, Jun Manabe, Sadafumi Nishihara, Xiao‐Ming Ren, Takayoshi Nakamura   +8 more
wiley   +1 more source

Knowledge Management in Software Engineering: A Systematic Review of Studied Concepts, Findings and Research Methods Used [PDF]

Bj{\o}rnson, F. O., & Dings{\o}yr, T. (2008). Knowledge Management in Software Engineering: A Systematic Review of Studied Concepts and Research Methods Used. Information and Software Technology, 50(11), 1055-1168, 2018
Software engineering is knowledge-intensive work, and how to manage software engineering knowledge has received much attention. This systematic review identifies empirical studies of knowledge management initiatives in software engineering, and discusses the concepts studied, the major findings, and the research methods used.
arxiv   +1 more source

Crossover Effects of Transition‐Metal Ions on Lithium‐Metal Anode in Localized High Concentration Electrolytes

Advanced Functional Materials, EarlyView.
This study highlights the impact of transition‐metal (TM) ions (Ni2⁺, Mn2⁺, Co2⁺) on the performance of lithium‐metal anode in localized high‐concentration electrolytes. Mn2⁺ and Co2⁺ destabilize SEI and CEI layers, causing capacity fade and overpotential, while Ni2⁺ shows minimal effects. These findings underscore the need for electrolyte optimization
Zezhou Guo, Zehao Cui, Arumugam Manthiram   +2 more
wiley   +1 more source

Relation between Air Pollution Exposure and Onset of Acute Coronary Syndrome in Tehran Heart Center Using a Case-Crossover Design

مجله اپیدمیولوژی ایران, 2007
Background & Objectives: Recent evidence suggests that long-term exposure to air pollution contributes to progression of atherosclerosis and the risk of cardiac morbidity and mortality; short-term exposure may also lead to thrombosis and acute ischemic ...
M Qorbani, M Yunesian, A Fotouhi, H Zeraati, S Sadeghian, Y Rashidi   +5 more
doaj  

The reliability of an environmental epidemiology meta-analysis, a case study [PDF]

Regulatory Toxicology and Pharmacology, 2019, 2019
Summary Background Claims made in science papers are coming under increased scrutiny with many claims failing to replicate. Meta-analysis studies that use unreliable observational studies should be in question. We examine the reliability of the base studies used in an air quality/heart attack meta-analysis and the resulting meta-analysis. Methods A
arxiv   +1 more source

Ternary Transistors With Reconfigurable Polarities

Advanced Functional Materials, EarlyView.
Polarity‐reconfigurable ternary transistors are demonstrated using black phosphorus homojunction with asymmetric contacts and split‐gate structures. Suppression of majority carrier injection, while Fowler–Nordheim tunneling of low‐density minority carriers persists, enables a well‐defined intermediate state with improved on/off ratios.
Dongju Yeom, Yeonghyeon Ko, Youngkyu Ko, Heungsoon Im, Jungi Song, Yongwook Seok, Hanbyeol Jang, Jaeha Hwang, Seokhun Jin, Kenji Watanabe, Takashi Taniguchi, Kayoung Lee   +11 more
wiley   +1 more source

Short-term air pollution exposure associated with death from kidney diseases: a nationwide time-stratified case-crossover study in China from 2015 to 2019

BMC Medicine, 2023
Background Long-term exposure to air pollution has been associated with the onset and progression of kidney diseases, but the association between short-term exposure to air pollution and mortality of kidney diseases has not yet been reported.
Miao Cai, Jing Wei, Shiyu Zhang, Wei Liu, Lijun Wang, Zhengmin Qian, Hualiang Lin, Echu Liu, Stephen Edward McMillin, Yu Cao, Peng Yin   +10 more
doaj   +1 more source