Despite the end of the global Coronavirus Disease 2019 (COVID-19) pandemic, the risk factors for COVID-19 severity continue to be a pivotal area of research. Specifically, studying the impact of the genomic diversity of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) on COVID-19 severity is crucial for predicting severe outcomes. Therefore, this study aimed to investigate the impact of the SARS-CoV-2 genome sequence, genotype, patient age, gender, and vaccination status on the severity of COVID-19, and to develop accurate and robust prediction models.
View Article and Find Full Text PDFThe recycling of food waste (FW) through anaerobic fermentation into lactic acid (LA), with two isomers L-LA and D-LA, aligns with the principles of a bio-based circular economy. However, FW fermentation is often limited by competing pathways, acidification inhibition, and trace metals deficiency. This study investigates the introduction of landfill leachate, containing buffering agents (ammonia) and trace metals, into FW fermentation.
View Article and Find Full Text PDFBackground: The problem of maternal mental health is a priority issue of global concern. Dyadic coping refers to the co-managing and making decisions between two parties in response to a joint stressful event. At present, china has limited focus on dyadic coping for pregnant women during pregnancy.
View Article and Find Full Text PDFThe international engineering education community has reached a consensus regarding the need to enhance engineering students' awareness of and capability to provide sustainable services in their future careers. Based on a modified college impact model, this study analyzed the impacts of curricular emphasis, curricular instruction, and sustainability-related career self-efficacy on the sustainability-related career expectations of engineering students and investigated the moderating effects of gender on the relationships among the research variables. The results show that both curricular emphasis and curricular instruction have direct positive effects on the sustainability-related career expectations of engineering students; sustainability-related career self-efficacy plays a partial mediating role in this process; and gender significantly moderates the influence of curricular emphasis and curricular instruction on sustainability-related career expectations.
View Article and Find Full Text PDFA full-quantum approach is used to study the quantum nonlinear properties of a compound Michelson-Sagnac interferometer optomechanical system. By deriving the effective Hamiltonian, we find that the reduced system exhibits a Kerr nonlinear term with a complex coefficient, entirely induced by the dissipative and dispersive couplings. Unexpectedly, the nonlinearities resulting from the dissipative coupling possess non-Hermitian Hamiltonian-like properties preserving the quantum nature of the dispersive coupling beyond the traditional system dissipation.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
June 2024
The discovery of high thermal stability, broad-band near-infrared (NIR) fluorescent phosphors holds significant potential in applications such as non-destructive testing, promoting plant growth, and night vision devices. In this study, a novel broad-band NIR phosphors LiMgZrO (LMZ): 1.0 %Cr, y%Yb were synthesized via a high-temperature solid-state reaction method, with the optimal doping concentration found to be y = 1.
View Article and Find Full Text PDFBMC Public Health
December 2023
Background: Tobacco smoke is associated with several diseases, and identified as the second leading risk factor for death from any cause worldwide. The relationship of tobacco smoke to mortality or premature death is not yet available from contemporary cohorts after 2010 in China. This study aimed to investigate the smoking behavior and the relationship of tobacco smoke to mortality and premature death among a nationally representative cohort starting from 2011 in China.
View Article and Find Full Text PDFThe linear photogalvanic effect (LPGE) is investigated by using the non-equilibrium Green's function (NEGF) technique combined with density functional theory (DFT) in monolayer NaMgSn. We consider the cases of three different central regions, which are pure NaMgSn, Na-vacancy, and Pb-substituted. It is found that both pure and defective NaMgSn monolayers induce photoresponse under linearly polarized light.
View Article and Find Full Text PDFLinear photogalvanic effects in monolayer WSe with defects are investigated by non-equilibrium Green's function technique combined with density functional theory. Monolayer WSe generates photoresponse in the absence of external bias voltage, showing potential applications in low-power consumption photoelectronic devices. Our results show that the photocurrent changes in perfect sine form with the polarization angle.
View Article and Find Full Text PDFNanomaterials (Basel)
August 2022
Nanocrystalline tungsten bronze is an excellent near-infrared absorbing material, which has a good potential application in the field of transparent heat shielding materials on windows of automobiles or buildings, but it exhibits serious instability in the actual environment, which hinders its further application. In this paper, we coated the CsWO nanoparticles with TiO to prepare core-shell structured CsWO@TiO, and its crystal structure and optical properties were studied. The results show that the surface of CsWO nanoparticles is coated with a layer of TiO particles with the size of several nanometers, and the shell thickness can be adjusted by the amount of Ti source.
View Article and Find Full Text PDFCercidiphyllum japonicum is a deciduous tree belonging to the genus Cercidiphyllum of the family Cercidiphyllaceae (Li et al., 2008). Fossil records indicated that this tree was once distributed throughout the Northern hemisphere during the tertiary period, whereas it is now only found in Japan and China as a consequence of quaternary glaciation.
View Article and Find Full Text PDFGenome-wide association study (GWAS) of six forage traits using whole-genome sequencing data generated from 301 ramie accessions found that traits were continuously distributed; the maximum variant coefficient was fresh weight per clump (FWPC) (2019) and individual plant height (IPH) (2019) minimum. Correlation analysis demonstrated that 2019 and 2020 results were similar; all traits were correlated. GWAS analysis demonstrated that six traits exhibited consistent and precise association signals.
View Article and Find Full Text PDFBackground: Considering the lack of valid and reliable food frequency questionnaires (FFQs) for nutritional epidemiological studies in China, it is necessary to develop an effective one for assessing nutrient intake among preschool children. The aim of this study was to evaluate the validity and reliability of newly developed FFQs for assessing food and nutrient intakes among preschool children in Northwest China.
Methods: Semiquantitative 67-item FFQs were developed and validated.
Environ Sci Pollut Res Int
May 2022
The overconsumption of natural resources and the production of waste are causing severe degradation of our environment. Generic technologies (GTs) of eco-friendly materials could alleviate environmental pollution, solve resource and environment-related conflicts, and promote society's sustainable development. The identification of GTs is the first step towards GT innovation and establishing a supply of eco-friendly materials; thus, how to accurately identify GTs is an important challenge for governments and enterprises.
View Article and Find Full Text PDFThis work was aimed at establishing an effective approach for in vitro propagation of Maxim, a medicinal and ornamental plant mainly found in eastern Xizang, in the western Sichuan region of China. We report an optimum response in the proliferation of axillary shoots from nodal segment explants (10.2 shoots/explant) on MS medium containing 3.
View Article and Find Full Text PDFThe NaWO nanoparticles with different were synthesized by a solvothermal method and the absorption behavior in visible and near-infrared light (NIR) region was studied. Well-crystallized nanoparticles with sizes of several tens of nanometers were confirmed by XRD, SEM and TEM methods. The absorption valley in visible region shifted from 555 nm to 514 nm and the corresponding absorption peak in NIR region shifted from 1733 nm to 1498 nm with the increasing x.
View Article and Find Full Text PDFInt J Environ Res Public Health
February 2021
Ethnic minority college students in China are Chinese students who migrate from ethnic minority-dominant areas to Han-dominant areas to attend college. Acculturative stress would lead to maladjustments for ethnic minority college students in China, such as low levels of life satisfaction. To help improve the life satisfaction of these students, this study adopted resilience theory to explore the beneficial effects of hope and social support and their influencing mechanisms.
View Article and Find Full Text PDFThe piezoelectric optomechanical devices supply a promising experimental platform to realize the coherent and effective control and measurement of optical circuits working in Terahertz (THz) frequencies via superconducting electron devices typically working in Radio (MHz) frequencies. However, quantum fluctuations are unavoidable when the size of mechanical oscillators enter into the nanoscale. The consequences of the noisy environment are still challenging due to the lack of analytical tools.
View Article and Find Full Text PDFInt J Environ Res Public Health
December 2020
This study explored how maternal and infant illness correlated with the risk of postpartum depression in the Chinese Qinba Mountains region. In total, 131 villages comprising 435 families with infants (≤6 months old) were randomly sampled. We collected data on maternal and infant illnesses and maternal health knowledge level.
View Article and Find Full Text PDFTo study the improvement of the entrepreneurial performance of start-ups and achieve an organic combination of entrepreneurship education and entrepreneurial performance, the entrepreneurial group of college students was taken as the springboard to discuss the entrepreneurial performance of start-ups initiated by college students. First, through questionnaire design and scale selection, the results of the questionnaire survey and the reliability and validity of the scale tool were tested. Second, the variable of college students' entrepreneurial self-efficacy based on psychological factor analysis was introduced.
View Article and Find Full Text PDFBased on examination of herbarium specimens (including types) and living plants, as well as analysis of protologues and distributions, , P. nubicola subsp. occidentalis, and P.
View Article and Find Full Text PDFRecently, high-energy density cells containing nickel-rich cathodes and silicon-based anodes have become a practical solution for increasing the driving range of electric vehicles. However, their long-term durability and storage performance is comparatively poor because of the unstable cathode-electrolyte-interphase (CEI) of the high-reactivity cathode and the continuous solid-electrolyte-interphase (SEI) growth. In this work, we study several electrolyte systems consisting of various additives, such as S-containing (1,3,2-dioxathiolane 2,2-dioxide (DTD), DTD + prop-1-ene-1,3-sultone (PES), methylene methanedisulfonate (MMDS)) and Si-containing (tris(trimethylsilyl) phosphate (TTSP) and tris(trimethylsilyl) borate (TMSB)) compounds, in comparison to the baseline electrolyte (BL = 1.
View Article and Find Full Text PDFBiochem Biophys Res Commun
September 2019
WRKY transcription factors are key regulators in regulating abiotic or biotic stress response in Arabidopsis. Previous studies showed that WRKY30 expression was induced by oxidative stress treatment, fungal elicitor, SA and ABA. However, functions of WRKY30 on viral defense are not well studied.
View Article and Find Full Text PDFBackground: The redundancy of genomic resources, including transcript and molecular markers, and their uncertain position in the genome have dramatically hindered the study of traits in ramie, an important natural fiber crop.
Results: We obtained a high-quality transcriptome consisting of 30,591 non-redundant transcripts using single-molecule long-read sequencing and proposed it as a universal ramie transcriptome. Additionally, 55,882 single nucleotide polymorphisms (SNPs) were identified and a high-density genetic map was developed.