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Results for “"Qi Dai"”

21+ results

Wireless Communications With Reconfigurable Intelligent Surface: Path Loss Modeling and Experimental Measurement

Verified

Wankai Tang, Ming Zheng Chen, Xiangyu Chen, Jun Yan Dai et al.

Journal: IEEE Transactions on Wireless CommunicationsYear: 2020Citations: 1587

Reconfigurable intelligent surfaces (RISs) comprised of tunable unit cells have recently drawn significant attention due to their superior capability in manipulating electromagnetic waves. In particular, RIS-assisted wireless communications have the great potential to achieve significant performance...

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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Space-time-coding digital metasurfaces

Verified

Lei Zhang, Xiao Qing Chen, Shuo Liu, Qian Zhang et al.

Journal: Nature CommunicationsYear: 2018Citations: 1207

The recently proposed digital coding metasurfaces make it possible to control electromagnetic (EM) waves in real time, and allow the implementation of many different functionalities in a programmable way. However, current configurations are only space-encoded, and do not exploit the temporal dimensi...

Physical SciencesMaterials ScienceElectronic, Optical and Magnetic MaterialsOpen Access
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A review of rechargeable batteries for portable electronic devices

Verified

Yeru Liang, Chen‐Zi Zhao, Hong Yuan, Yuan Chen et al.

Journal: InfoMatYear: 2019Citations: 1135

Abstract Portable electronic devices (PEDs) are promising information‐exchange platforms for real‐time responses. Their performance is becoming more and more sensitive to energy consumption. Rechargeable batteries are the primary energy source of PEDs and hold the key to guarantee their desired perf...

Physical SciencesEngineeringAutomotive EngineeringOpen Access
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863 genomes reveal the origin and domestication of chicken

Verified

Mingshan Wang, Mukesh Thakur, Min‐Sheng Peng, Yu Jiang et al.

Journal: Cell ResearchYear: 2020Citations: 293

Despite the substantial role that chickens have played in human societies across the world, both the geographic and temporal origins of their domestication remain controversial. To address this issue, we analyzed 863 genomes from a worldwide sampling of chickens and representatives of all four speci...

Life SciencesAgricultural and Biological SciencesAnimal Science and ZoologyOpen Access
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Minimizing errors in RT-PCR detection and quantification of SARS-CoV-2 RNA for wastewater surveillance

Verified

Warish Ahmed, Stuart L. Simpson, Paul M. Bertsch, Kyle Bibby et al.

Journal: The Science of The Total EnvironmentYear: 2021Citations: 278

Wastewater surveillance for pathogens using reverse transcription-polymerase chain reaction (RT-PCR) is an effective and resource-efficient tool for gathering community-level public health information, including the incidence of coronavirus disease-19 (COVID-19). Surveillance of Severe Acute Respira...

Health SciencesMedicineInfectious DiseasesOpen Access
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Healthcare worker infections and deaths due to COVID-19: A survey from 37 nations and a call for WHO to post national data on their website

Verified

Hakan Erdem, Daniel R. Lucey

Journal: International Journal of Infectious DiseasesYear: 2020Citations: 242

•Healthcare workers (HCW) are part of the frontline in the struggle against the pandemic.•Many HCWs have been infected with SARS-CoV-2 and have ldied worldwide during the pandemic.•We performed an international survey and requested the total numbers of HCW deaths and infections.•Data were obtained f...

Social SciencesEconomics, Econometrics and FinanceEconomics and EconometricsOpen Access
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Impact of topical oils on the skin barrier: possible implications for neonatal health in developing countries

Verified

Gary L. Darmstadt, M Mao-Qiang, Emil Chi, SK Saha et al.

Journal: Acta PaediatricaYear: 2002Citations: 227

UNLABELLED: Topical therapy to enhance skin barrier function may be a simple, low-cost, effective strategy to improve outcome of preterm infants with a developmentally compromised epidermal barrier, as lipid constituents of topical products may act as a mechanical barrier and augment synthesis of ba...

Health SciencesHealth ProfessionsSpeech and Hearing
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Impact of topical oils on the skin barrier: possible implications for neonatal health in developing countries

Verified

Gary L. Darmstadt, M Mao‐Qiang, Emil Chi, SK Saha et al.

Journal: Acta PaediatricaYear: 2002Citations: 223

Topical therapy to enhance skin barrier function may be a simple, low‐cost, effective strategy to improve outcome of preterm infants with a developmentally compromised epidermal barrier, as lipid constituents of topical products may act as a mechanical barrier and augment synthesis of barrier lipids...

Health SciencesHealth ProfessionsSpeech and Hearing
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Variation in global chemical composition of PM <sub>2.5</sub> :emerging results from SPARTAN

Verified

Graydon Snider, Crystal Weagle, Kalaivani K. Murdymootoo, Amanda Ring et al.

Journal: Atmospheric chemistry and physicsYear: 2016Citations: 191

Abstract. The Surface PARTiculate mAtter Network (SPARTAN) is a long-term project that includes characterization of chemical and physical attributes of aerosols from filter samples collected worldwide. This paper discusses the ongoing efforts of SPARTAN to define and quantify major ions and trace me...

Physical SciencesEarth and Planetary SciencesAtmospheric ScienceOpen Access
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Effectiveness of telemedicine for pregnant women with gestational diabetes mellitus: an updated meta-analysis of 32 randomized controlled trials with trial sequential analysis

Verified

Weihua Xie, Pinyuan Dai, Yu Qin, Ming Wu et al.

Journal: BMC Pregnancy and ChildbirthYear: 2020Citations: 182

BACKGROUND: Gestational diabetes mellitus (GDM) is now a global health problem. Poor blood glucose control during pregnancy may lead to maternal and neonatal/foetal complications. Recently, the development of information and communication technology has resulted in new technical support for the clin...

Health SciencesMedicineObstetrics and GynecologyOpen Access
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Patterns of antibiotic use, pathogens, and prediction of mortality in hospitalized neonates and young infants with sepsis: A global neonatal sepsis observational cohort study (NeoOBS)

Verified

Neal Russell, Wolfgang Stöhr, Nishad Plakkal, Aislinn Cook et al.

Journal: PLoS MedicineYear: 2023Citations: 163

BACKGROUND: There is limited data on antibiotic treatment in hospitalized neonates in low- and middle-income countries (LMICs). We aimed to describe patterns of antibiotic use, pathogens, and clinical outcomes, and to develop a severity score predicting mortality in neonatal sepsis to inform future ...

Health SciencesMedicinePublic Health, Environmental and Occupational HealthOpen Access
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Programmable metasurface‐based RF chain‐free 8PSK wireless transmitter

Verified

Wankai Tang, Jun Yan Dai, Mingzheng Chen, Xiang Li et al.

Journal: Electronics LettersYear: 2019Citations: 163

In this Letter, a wireless transmitter using the new architecture of programmable metasurface is presented. The proposed transmitter does not require any filter, nor wideband mixer or wideband power amplifier, thereby making it a promising hardware architecture for cost‐effective wireless communicat...

Physical SciencesEngineeringAerospace EngineeringOpen Access
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A cohort study of cancer among benzene-exposed workers in China: Overall results

Verified

Song-Nian Yin, Richard B. Hayes, Martha S. Linet, Guilan Li et al.

Journal: American Journal of Industrial MedicineYear: 1996Citations: 153

A large cohort study of 74,828 benzene-exposed and 35,805 unexposed workers employed between 1972 and 1987 in 12 cities in China were followed to determine mortality from all causes and the incidence of lymphohematopoietic malignancies and other hematologic disorders. Benzene-exposed study subjects ...

Life SciencesBiochemistry, Genetics and Molecular BiologyCancer Research
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A universal metasurface antenna to manipulate all fundamental characteristics of electromagnetic waves

Verified

Geng‐Bo Wu, Jun Yan Dai, Kam Man Shum, Ka Fai Chan et al.

Journal: Nature CommunicationsYear: 2023Citations: 151

Metasurfaces have promising potential to revolutionize a variety of photonic and electronic device technologies. However, metasurfaces that can simultaneously and independently control all electromagnetics (EM) waves' properties, including amplitude, phase, frequency, polarization, and momentum, wit...

Physical SciencesMaterials ScienceElectronic, Optical and Magnetic MaterialsOpen Access
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Vaccine for Prevention of Mild and Moderate-to-Severe Influenza in Children

Verified

Varsha Jain, Luis Rivera, Khalequ Zaman, Roberto A. Espos et al.

Journal: New England Journal of MedicineYear: 2013Citations: 141

BACKGROUND: Commonly used trivalent vaccines contain one influenza B virus lineage and may be ineffective against viruses of the other B lineage. We evaluated the efficacy of a candidate inactivated quadrivalent influenza vaccine (QIV) containing both B lineages. METHODS: In this multinational, phas...

Health SciencesMedicineEpidemiology
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Politicization of COVID-19 health-protective behaviors in the United States: Longitudinal and cross-national evidence

Verified

Wolfgang Stroebe, Michelle R. vanDellen, Georgios Abakoumkin, Edward P. Lemay et al.

Journal: PLoS ONEYear: 2021Citations: 134

During the initial phase of the COVID-19 pandemic, U.S. conservative politicians and the media downplayed the risk of both contracting COVID-19 and the effectiveness of recommended health behaviors. Health behavior theories suggest perceived vulnerability to a health threat and perceived effectivene...

Social SciencesSociology and Political ScienceSocial and Intergroup PsychologyOpen Access
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High‐Efficiency Synthesizer for Spatial Waves Based on Space‐Time‐Coding Digital Metasurface

Verified

Jun Yan Dai, Liu Yang, Jun Chen Ke, Ming Zheng Chen et al.

Journal: Laser & Photonics ReviewYear: 2020Citations: 128

Abstract Space‐time modulated metasurfaces enable efficient manipulations of nonlinear harmonics with more degrees of freedom than conventional materials by simply controlling the element geometries and modulation signals. The theoretical analyses reveal that a group of harmonics in reflected waves ...

Physical SciencesMaterials ScienceElectronic, Optical and Magnetic Materials
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Production of Highly Active Extracellular Amylase and Cellulase From Bacillus subtilis ZIM3 and a Recombinant Strain With a Potential Application in Tobacco Fermentation

Verified

Jingcheng Dai, Aijun Dong, Guoxi Xiong, Yaqi Liu et al.

Journal: Frontiers in MicrobiologyYear: 2020Citations: 113

In this study, a series of bacteria capable of degrading starch and cellulose were isolated from the aging flue-cured tobacco leaves. Remarkably, there was a thermophilic bacterium Bacillus subtilis ZIM3 which can simultaneously degrade both starch and cellulose at a wide range of temperature and pH...

Life SciencesBiochemistry, Genetics and Molecular BiologyBiotechnologyOpen Access
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Di(2-ethylhexyl) phthalate induced hepatotoxicity in quail (Coturnix japonica) via modulating the mitochondrial unfolded protein response and NRF2 mediated antioxidant defense

Verified

Qi Zhang, Yi Zhao, Milton Talukder, Yu Han et al.

Journal: The Science of The Total EnvironmentYear: 2018Citations: 111

Among ubiquitously found environmental contaminants in the ecosystem, di(2-ethylhexyl) phthalate (DEHP) is an important environmental contaminant used as plasticizer in medical and consumer goods. The bioaccumulation and environmental persistence of DEHP cause serious global health effects in wildli...

Physical SciencesEnvironmental ScienceHealth, Toxicology and Mutagenesis
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The role of dietary modification in the prevention and management of metabolic dysfunction-associated fatty liver disease: An international multidisciplinary expert consensus

Verified

Xufen Zeng, Krista A Varady, Xiangdong Wang, Giovanni Targher et al.

Journal: MetabolismYear: 2024Citations: 107

Metabolic dysfunction-associated fatty liver disease (MAFLD) or metabolic dysfunction-associated steatotic liver disease (MASLD), has become the leading cause of chronic liver disease worldwide. Optimal dietary intervention strategies for MAFLD are not standardized. This study aimed to achieve conse...

Health SciencesMedicineEpidemiologyOpen Access
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