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The structural stability,mechanical and electronic properties of three types of Re-doped Os B4 were studied by the Vienna Ab initio Simulation Package (VASP) .The Os element in the P42/nmc phase Os B4 was substituted by the Re element,and the structural model of the Os1-xRexB4 (x=0,0.0625,0.125,0.25) solid solution systems were constructed.The results show that the lattice constant and volume of Os1-xRexB4increase slightly with the increase of Re content,and the structural distortion occurs when x is higher than 0.25;The structures and thermodynamics of the Os1-xRexB4 (x=0,0.0625,0.125) are stable;The density of states mainly comes from the 5d electrons of Os and the 2s and 2p electrons of B,and the 5d orbital electrons of Re atoms also contribute to the valence band and conduction band,with the increase of its content,the peak provided also increases;the strong covalent interaction of B-B and B-Os bonds are the main reason for their higher bulk moduli and shear moduli.As the concentration of Re element increases,the conductivity and ductility of the structure increase to a certain extent. [ABSTRACT FROM AUTHOR]

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Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chinese Mass Spectrometry Society is the property of Journal of Chinese Mass Spectrometry Society and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Mine Automation is the property of Industry & Mine Automation Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Jilin University (Science Edition) / Jilin Daxue Xuebao (Lixue Ban) is the property of Zhongguo Xue shu qi Kan (Guang Pan Ban) Dian zi Za zhi She and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Plant wax ester synthase catalyzes the synthesis of wax esters from long-chain alcohols and fatty acids, and plays very important roles in plant wax synthesis and some resistances to drought, pathogenic bacteria, ultraviolet radiation, cold and insect invasion and other environmental stresses; cadmium (Cd) is one of the toxic heavy metals with the highest content in environment, and seriously threatens plant growth, development, quality, yield, and plant food safety. In order to explore the Cd stress expressions of wax ester synthase genes in Rehmannia glutinosa, we identified its wax ester synthase genes from its full-length transcriptome sequencing data, analyzed both physiochemical properties, phytogenetic trees and conserved domains with bioinformatics methods, and tissue expressions and Cd stress expressions using qRT-PCR. The results were as follows: (1) Two wax ester synthase genes, named as RgOATWSD1 and RgOATWSD2, were identified, whose coding proteins were unstable hydrophobic proteins with amino acid lengths of 463 aa and 473 aa, isoelectric points of 8.86 and 9.34 and molecular weights of 51.31 kD and 52.49 kD, respectively. (2) Both proteins contained a conserved acyl＿WS＿DGAT domain and DUF1298 superfamily, in which the former accounted for 92.65% to 94.50% of the amino acid sequence. (3) Both proteins were located in the endoplasmic reticulum and both secondary structures were mainly composed of random coil and α-helix; RgOATWSD2 was not transmembrane protein but RgOATWSD1. (4) Both were differentially expressed in the roots, stems and leaves of R. glutinosa plants. (5) Both expressions were highly responsive to Cd stress, but both expression change trends were different under Cd stress. This study identifies two wax ester synthase genes in response to Cd stress, and lays a foundation for further research on Cd stress expression and other functions of RgOATWSD. [ABSTRACT FROM AUTHOR]

Using carboxymethyl cellulose sodium and polyethylene glycol as raw materials, a porous network structure was formed through cross-linking and gel, and a pH responsive gel membrane was prepared. The sample obtained antibacterial properties by soaked in tannic acid solution, and the microstructure, swelling properties, in vitro drug release, antioxidant properties, and antibacterial properties of the antibacterial membrane were characterized. The results show that the prepared antibacterial membrane has a good porous structure. The carboxyl group on carboxymethyl cellulose sodium endows the antibacterial membrane with certain pH responsiveness, which makes it exhibit anisotropic swelling and drug release in vitro at different pH values. After drug loading, the antioxidant capacity of the sample increases to 91.33%, and the antibacterial rate against Escherichia coli and Staphylococcus aureus reaches more than 9()%. This antibacterial film has great application prospects in drug sustained-release dressings and other fields. [ABSTRACT FROM AUTHOR]

Copyright of Pearl River is the property of Pearl River Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Hebei University of Science & Technology is the property of Hebei University of Science & Technology, Journal of Hebei University of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Using Huapi Kumquat as the research object, nano-selenium and sodium selenite as selenium sources, the effects of surface spraying selenium fertilizer on chlorophyll content and fruit yield, soluble solids, vitamin C, reducing sugar, total soluble sugar, malondialdehyde content, and glutathione peroxidase activity in plant leaves were analyzed. The results showed that, compared with CK, the selenium contents in pulp, peel and leaf of Huapi Kumquat were increased by 230.6% and 118.5%,253.8% and 79.8%,616.3% and 185.0%,respectively, after spraying nano-selenium and sodium selenite on leaf surface. The activities of GPx in flesh, peel and leaves were significantly higher than those in CK treatment. MDA content in flesh, peel and leaves decreased significantly. Foliar spraying nano-selenium had better effect on fruit growth and fruit quality formation than sodium selenite. [ABSTRACT FROM AUTHOR]

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Donghua University (Natural Science Edition) is the property of Journal of Donghua University (Natural Science) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chemical Engineering of Oil & Gas / Shi You Yu Tian Ran Qi Hua Gong is the property of PetroChina Southwest Oil & Gas Field Company and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Applied Entomology is the property of Chinese Journal of Applied Entomology, Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To survey the psychological reaction status and influencing factors of the nurses in a class 3A hospital of Chengdu under the normalized prevention and control of COVID-19 epidemic to provide a theoretical basis for the related department of the hospital formulating the interventional strategy. Methods The cluster sampling methods was used to select 1 079 nurses in a class 3A Women and Children Specialized Hospital of Chengdu City as the study subjects under trending to normalized prevention and control after the outbreak of the novel coronavirus infection from May to June 2021.The self-made general data qestionnaire, Generalized Anxiety Disorder（GAD-7) scale and Maslach Burnout Inventory (MBI) were used to conduct the questionnaire survey, and the SPSS25.0 statistical soft was used for conducting the data analysis. Results Among 1 079 nurses, 304 nurses（28.2%） had the GAD-7 score ≥5 points, which was correlated with the education background, working years, professional and technical posts, working post during the epidemic, awareness of the impact of COVID-19 on work and social and family support, and the differences were statistically significant（P＜0.05）.In the work burnout scale, the subjects with meddle and high levels in the emotion burnout sense, work apathy sense and work non-achievement sense accounted for 40.7%（439/1 079）,33.3%（359/1 079） and 65.7%（709/1 079） respectively. Different professional and technical positions, work position and social and family support during the epidemic had the influence on the level of emotional burnout, different professional and technical posts, work positions during epidemic had the influence on the work apathy sense, different the educational backgrounds and profesional and technical posts and work posts during epidemic had the influence on the work non-achievement sense, and the differences were statistically significant（P＜0.05）.The nurses in the first line epidemic prevention posts had significant work burnout sense. Conclusion The nurses had a certain degree of anxiety and work burnout sense from COVID-19 epidemic outbreak to the normalized prevention and control, which needs to give the psychological support and better prevention and control strategies. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Hebei University of Science & Technology is the property of Hebei University of Science & Technology, Journal of Hebei University of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Yellow River is the property of Editorial Board of Yellow River and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A new decamolybdate (NH4)4 (CN3 H6)4 [ Mo10 (O2) 12°22 J* 6H2O was synthesized by aqueous solution method, and characterized by IR spectroscopy, TG, single crystal X-ray diffraction and elemental analysis・ The anions [ Mo10 (O2) 12O22 ]8 exhibit a centrosymmetric structure and the symmetric unit [MO5O11 (O2) 64, [NH4] + and [ CN3H6] + cations are free around the polyanions ・ TG analysis showed that the anion has good thermal stability・ Electrospray mass spectrometry indicated that the compound was unstable in the liquid phase, the fragment ion [Mo4O13]2 (BPI = 100%) with the largest abundance was the most stable and likely the main active species in catalyzing oxidation reactions・ The oxidation reaction of phenyl methyl sulfide was studied using the compound as the catalyst, and the results showed that it was selectively oxidized to methyl phenyl sulfone, the optimal reaction conditions were found as follows: catalyst 180 mg, hydrogen peroxide 5 mL, reaction time 5 h, the yield of methyl phenyl sulfone reached 84. 28%, which indicated the compound has efficient catalytic activity and selectivity for the oxidation of phenyl methyl sulfide. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Modern Laboratory Medicine is the property of Journal of Modern Laboratory Medicine Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Guilin University of Technology is the property of Journal of Guilin University of Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The purpose of the experiment was to study the effect of dietary supplementation with different doses of coated trace elements and plant essential oils on the growth performance, meat quality, organ index and antioxidant capacity of AA broilers. The experiment selected 540 healthy 1-day-old AA male broilers with similar body weight and randomly divided them into six groups: Control group (basal diet + 1 g/kg common powdered sulfate), group 1, group 2 and group 3 (basal diet + 0.25, 0.30, 0.35 g/kg coated trace elements respectively), group 4 and group 5 (basal diet + 0.30 g/kg coated trace elements + 0.15, 0.20 g/kg plant essential oils, respectively). The results showed that compared with the control group, the death rate of each test group was decreased, the average daily gain of the four groups in the test was significantly increased (P<0.05), and the feed-to-gain ratio was significantly decreased (P<0.05). The water loss rate of group 3, group 4 and group 5 was significantly lower than that of control group, group 1, group 2 (P<0.05). At 42 d of age, compared with the control group, the activity of SOD in group 3, group 4 and group 5 was significantly increased (P<0.05), the content of MDA was significantly decreased (P<0.05), and T-AOC was significantly increased (P<0.05). The study indicates that the addition of coated trace elements and plant essential oils to the diet can significantly improve the growth performance and meat quality of AA broilers, reduce the ratio of consumption to weight gain, and improve the antioxidant properties of feeds, and the combination of 0.30 g/kg of coated trace elements and 0.15 g/kg of plant essential oil additives is the best. [ABSTRACT FROM AUTHOR]

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Synthetic Crystals is the property of Journal of Synthetic Crystals Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Geological Hazard & Control is the property of China Institute of Geological Environmental Monitoring (CIGEM) Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Bearing is the property of Bearing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Engineering Management / Gongcheng Guanli Xuebao is the property of Journal of Engineering Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Explains the nature, hazards and control requirements of benzopyrene, summarizes the treatment technologies（adsorption, heat treatment, chemical and biological degradation） of benzopyrene in drilling wastes that have been studied and applied at home and abroad in recent years. These processing techniques were compared and analyzed. Finally, the future research direction of benzopyrene treatment in drilling waste is summarized and prospected. [ABSTRACT FROM AUTHOR]