We report a 2-family cluster of persons infected with severe acute respiratory syndrome coronavirus 2 in the city of Zhoushan, Zhejiang Province, China, during January 2020. The infections resulted ...from contact with an infected but potentially presymptomatic traveler from the city of Wuhan in Hubei Province.
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DOBA, IZUM, KILJ, NUK, ODKLJ, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Green human resource management (HRM) practices can help organizations align their business strategies with the environment. Anchored in the resource‐based view of the firm, this study examines the ...influence of green HRM practices on sustainability using cross‐sectional data obtained from 112 large manufacturing firms in Malaysia. The results show that green recruitment and green training have positive effects on sustainability. However, green analysis and job description, green selection, green performance assessment, and green reward were not found to have any significant influence on sustainability. The model presented in this paper offers useful insights into the positive role of green HRM in the sustainability of manufacturing firms, and as previous studies exploring the link between green HRM and sustainability using empirical data from Malaysian manufacturing firms are scarce, this research is of significant importance for scholars and practitioners. The scope of this study focuses on emerging economies with a limited number of variables that are contextual and specific to the Malaysian economy. Future research could explore the relationship between green HRM and other variables that may contribute to the present framework in other contexts. Future studies may also consider each dimension of green HRM, or indeed other elements of green HRM, in relation to the different aspects of sustainability.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
To estimate the incidence of foodborne gastroenteritis caused by nontyphoidal Salmonella enterica, Shigella, and Vibrio parahaemolyticus in China, population surveys and sentinel hospital ...surveillance were implemented in six provinces from July 2010 to July 2011, and a multiplier calculation model for the burden of disease was constructed. The multiplier for salmonellosis and V. parahaemolyticus gastroenteritis was estimated at 4,137 95% confidence interval (CI) 2,320-5,663, and for shigellosis at 4,356 (95% CI 2,443-5,963). Annual incidence per 100,000 population was estimated as 245 (95% CI 138-336), 67 (95% CI 38-92), and 806 (95% CI 452-1,103) for foodborne salmonellosis, shigellosis, and V. parahaemolyticus gastroenteritis, respectively, indicating that foodborne infection caused by these three pathogens constitutes an important burden to the Chinese healthcare system. Continuous implementation of active surveillance of foodborne diseases, combined with multiplier models to estimate disease burden, makes it possible for us to better understand food safety status in China.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Abstract Background Pathogenesis and diagnostic biomarkers for diseases can be discovered by metabolomic profiling of human fluids. If the various types of coronary artery disease (CAD) can be ...accurately characterized by metabolomics, effective treatment may be targeted without using unnecessary therapies and resources. Objectives The authors studied disturbed metabolic pathways to assess the diagnostic value of metabolomics-based biomarkers in different types of CAD. Methods A cohort of 2,324 patients from 4 independent centers was studied. Patients underwent coronary angiography for suspected CAD. Groups were divided as follows: normal coronary artery (NCA), nonobstructive coronary atherosclerosis (NOCA), stable angina (SA), unstable angina (UA), and acute myocardial infarction (AMI). Plasma metabolomic profiles were determined by liquid chromatography–quadrupole time-of-flight mass spectrometry and were analyzed by multivariate statistics. Results We made 12 cross-comparisons to and within CAD to characterize metabolic disturbances. We focused on comparisons of NOCA versus NCA, SA versus NOCA, UA versus SA, and AMI versus UA. Other comparisons were made, including SA versus NCA, UA versus NCA, AMI versus NCA, UA versus NOCA, AMI versus NOCA, AMI versus SA, significant CAD (SA/UA/AMI) versus nonsignificant CAD (NCA/NOCA), and acute coronary syndrome (UA/AMI) versus SA. A total of 89 differential metabolites were identified. The altered metabolic pathways included reduced phospholipid catabolism, increased amino acid metabolism, increased short-chain acylcarnitines, decrease in tricarboxylic acid cycle, and less biosynthesis of primary bile acid. For differential diagnosis, 12 panels of specific metabolomics-based biomarkers provided areas under the curve of 0.938 to 0.996 in the discovery phase (n = 1,086), predictive values of 89.2% to 96.0% in the test phase (n = 933), and 85.3% to 96.4% in the 3-center external sets (n = 305). Conclusions Plasma metabolomics are powerful for characterizing metabolic disturbances. Differences in small-molecule metabolites may reflect underlying CAD and serve as biomarkers for CAD progression.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
In acidic media, benchmark electrocatalysts for oxygen evolution reaction (OER) are mainly restricted to noble metal oxides like IrO2 and RuO2. Herein, a facile electrodeposition-hydrothermal process ...has been used to fabricate mesoporous Ag-doped Co3O4 nanowire arrays supported on FTO (AgCo/FTO) for water oxidation in 0.5 M H2SO4. The role of electrodeposited Ag includes: 1) Ag film on FTO can direct the vertical growth of Co3O4 to form nanowire arrays; 2) Ag2O in AgCo hydroxides precursors contribute to the formation of mesoporous nanostructure owing to the pyrolysis of Ag2O in calcination process. XRD confirms the diffraction peaks of metal Ag and Co3O4. SEM and TEM images display that mesoporous nanowire arrays of Ag-doped Co3O4 are uniformly distributed on FTO, which introduces more exposed active sites and shorter electron transfer paths. AgCo/FTO show excellent OER activity with the onset potential of 1.91 V at the current density of 10 mA cm−2. Besides, AgCo/FTO shows high stability at a constant overpotential of 370 mV for 10 h. So Ag-doping greatly enhances not only the conductivity but also the stability of electrocatalyst in acidic media. Therefore, Ag-doped transition metal oxides may be promising alternative mesoporous nanostructures for efficient OER in acid.
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•Mesoporous Ag-doped Co3O4 nanowire arrays supported on FTO have been synthesized.•Ag film is helpful for vertical growth and mesoporous structure of AgCo nanowire.•Ag-doped Co3O4 nanowires show excellent OER activity and stability in 0.5 M H2SO4.•Ag-doped transition metal oxides may be promising precursors for efficient OER.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
The development of electrocatalysts that are not reliant on iridium for efficient acid‐oxygen evolution is a critical step towards the proton exchange membrane water electrolysis (PEMWE) and green ...hydrogen industry. Ruthenium‐based electrocatalysts have garnered widespread attention due to their remarkable catalytic activity and lower commercial price. However, the challenge lies in balancing the seesaw relationship between activity and stability of these electrocatalysts during the acid‐oxygen evolution reaction (OER). This review delves into the progress made in Ru‐based electrocatalysts with regards to acid OER and PEMWE applications. It highlights the significance of customizing the acidic OER mechanism of Ru‐based electrocatalysts through the coordination of adsorption evolution mechanism (AEM) and lattice oxygen oxidation mechanism (LOM) to attain the ideal activity and stability relationship. The promising tradeoffs between the activity and stability of different Ru‐based electrocatalysts, including Ru metals and alloys, Ru single‐atomic materials, Ru oxides, and derived complexes, and Ru‐based heterojunctions, as well as their applicability to PEMWE systems, are discussed in detail. Furthermore, this paper offers insights on in situ control of Ru active sites, dynamic catalytic mechanism, and commercial application of PEMWE. Based on three‐way relationship between cost, activity, and stability, the perspectives and development are provided.
The research progress of all kinds of Ru‐based electrocatalysts in acid oxygen evolution reaction and proton exchange membrane water electrolysis is summarized and prospected. The balancing between the activity and stability of Ru‐based materials is the key goal. The relevant regulatory strategies and enhanced mechanisms in proton exchange membrane are discussed well.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
The ternary cobalt-nickel-iron phosphide nanocubes (P-Co
0.9
Ni
0.9
Fe
1.2
NCs) with high intrinsic activity, conductivity, defect concentration and optimized ratio have been realized through a ...facile phosphorization treatment using ternary cobalt-nickel-iron nanocubes of Prussian blue analogs (PBA) as a precursor. The scanning electron microscopy and transmission electron microscopy results show that the P-Co
0.9
Ni
0.9
Fe
1.2
NCs maintain a cubic structure with a rough surface, implying the rich surface defects as exposed active sites. The thermal phosphorization of the ternary PBA precursor not only provids carbon doping but also leads to the
in situ
construction of surface defects on the NCs. The carbon doping from the PBA precursor lowers the charge transfer resistance and optimizes the electronic transformation. The synergistic effect among the ternary metal ions and rich defects contributes to the enhanced electrocatalytic performance. The P-Co
0.9
Ni
0.9
Fe
1.2
NCs achieve low overpotentials of −200.7 and 273.1 mV at a current density of 10 mA cm
−2
for the hydrogen evolution reaction and the oxygen evolution reaction, respectively. The potential of overall water splitting reaches 1.52 V at a current density of 10 mA cm
−2
. The long-term stability of the electrocatalysts was also evaluated. This work provides a facile method to design efficient transition-metal-based bifunctional electrocatalysts for overall water splitting.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
PurposeThe study aims to investigate the relationships between green intellectual capital, green human resource management (HRM), and sustainability.Design/methodology/approachThe research is based ...on information gathered from 112 large Malaysian manufacturing companies.FindingsThe study findings revealed that green human capital and green relational capital positively influence green HRM. In addition, green HRM positively related to social, environmental and economic performance. Besides, green HRM positively mediates the relationships between green human capital and economic, social and environmental performance. Finally, green relational capital improves sustainability (economic, environmental, and social performance) mediated by green HRM.Originality/valueThe current study contributes to the literature by examining green IC (green human capital, green structural capital, and green relational capital) as an independent variable and green HRM as a mediating variable for sustainability (economic, environmental, and social performance). The findings and recommended for the managers of large manufacturing firms and practitioners to invest in green IC to achieve sustainability through green HRM.
Abnormal epigenetic regulation has been implicated in oncogenesis. We report here the identification of somatic mutations by exome sequencing in acute monocytic leukemia, the M5 subtype of acute ...myeloid leukemia (AML-M5). We discovered mutations in DNMT3A (encoding DNA methyltransferase 3A) in 23 of 112 (20.5%) cases. The DNMT3A mutants showed reduced enzymatic activity or aberrant affinity to histone H3 in vitro. Notably, there were alterations of DNA methylation patterns and/or gene expression profiles (such as HOXB genes) in samples with DNMT3A mutations as compared with those without such changes. Leukemias with DNMT3A mutations constituted a group of poor prognosis with elderly disease onset and of promonocytic as well as monocytic predominance among AML-M5 individuals. Screening other leukemia subtypes showed Arg882 alterations in 13.6% of acute myelomonocytic leukemia (AML-M4) cases. Our work suggests a contribution of aberrant DNA methyltransferase activity to the pathogenesis of acute monocytic leukemia and provides a useful new biomarker for relevant cases.
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DOBA, IJS, IZUM, KILJ, NUK, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK
As the cost-effective and nontoxic alternative for hydrogen evolution reaction (HER), Co9S8 has attracted much attention. This paper explores the regulation of Zn doping impacted the unique ...nanostructure and electrocatalytic performance on Co9S8. Herein, utilizing copper foam (CF) as substrate, a series of different nanostructure of (Zn-)Co9S8@CF has been synthesized by accurately varying the ratio of Zn2+ to Co2+. Compared with aggregated pure Co9S8 and other different ratios contrast samples, Zn–Co9S8@CF-(1-1) with a zinc to cobalt ratio of 1 possesses highly dispersity which can be attributed to the novel nano-neuron network structure. The electrochemical measurements for HER demonstrate that Zn–Co9S8@CF-(1-1) not only reveals superior activity with small overpotentials to achieve a current density of 10 mA cm−2 in acidic (278 mV) and alkaline (273 mV) media, but also exhibits long-time durability in the solution with a wide range of pH. The excellent performance of Zn–Co9S8@CF-(1-1) can be attributed to the unique reticular structure which can facilitate exposure of numerous active sites and favorable long-term stability. The substrate of three-dimensional CF can provide the remarkable conductivity. This work provides a precise and effective approach to regulate three-dimensional nanostructure of Zn-doped electrocatalysts for HER.
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•Zn–Co9S8 on copper foam (CF) with a nano-neuron network structure is synthesized.•The ratios of Zn2+ to Co2+ can affect the structure of Zn–Co9S8@CF.•Zn–Co9S8@CF exhibits excellent activity and long-time durability with a wide range of pH.•Zn doping is a promising method for construct the novel structure of electrocatalysts.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
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