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系外地球科学卫星(ET)将通过采用空间大视场超高精度测光这一关键技术在国际上率先突破生命起源中的系外地球存在及其演化这一重大前沿科学问题. ET卫星将在日地拉格朗日L2点晕(Halo)轨道部署由6台广角凌星望远镜和1台微引力透镜望远镜构成的空间天文台, 结合凌星法和微引力透镜法, 利用空间超大视场和超高精度的光学测光观测, 首次发现富有重要意义、被广泛关注的系外地球, 并确定其发生率, 对目前了解甚少的类地行星和流浪行星进行国际上第一次大规模的种群普查, 首次发现流浪地球, 并确定其发生率, 揭示类地行星和流浪行星起源, 为地外生命探寻提供候选者和新方向. ET卫星的观测结果、统计研究以及和对理论的检验将回答系外地球在宇宙中有多普遍, 类地行星是如何形成和演化的, 流浪行星又是如何起源的这些亟待解决的前沿科学问题. 对ET卫星发现的系外地球样本的后随观测, 将精确测量其质量、密度和大气成分, 有助于深入分析宜居性特征. 此外, 对ET新发现的大量各种系外行星样本的研究, 以及对理论的检验将推动这些种类的行星形成和演化规律的更深入认识, ET的大量高精度、高频次和长基线测光数据将推动星震学、银河系考古学、时域天文学、双星和双星黑洞等领域的研究.

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. 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 Acta Prataculturae Sinica is the property of Acta Prataculturae Sinica 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 Liaoning Technical University (Natural Science Edition) / Liaoning Gongcheng Jishu Daxue Xuebao (Ziran Kexue Ban) is the property of Journal of Liaoning Technical University (Natural 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 Coal Science & Technology (0253-2336) is the property of Coal 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 Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering 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.)

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Copyright of Experimental Technology & Management is the property of Experimental Technology & 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.)

Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics 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.)

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Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research 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 investigate the population distribution of non-alcoholic fatty liver disease before and after renaming and the association between the types of metabolic risk factors (MRF) for metabolic dysfunction-associated steatotic liver disease (MASLD) and advanced liver fibrosis. Methods This study was conducted among 515 patients who were admitted to The Affiliated Hospital of Xuzhou Medical University and Wuxi Fifth People’s Hospital from January 2019 to January 2022 and had hepatocyte steatosis ≥5% by liver biopsy. Among these patients, 2 patients did not meet the diagnostic criteria for nonalcoholic fatty liver disease (NAFLD) and metabolic associated fatty liver disease (MAFLD), respectively, and were classified as steatotic liver disease (SLD) with other specific causes, and the other 513 patients were divided into MASLD group with 275 patients, comorbid group with 216 patients (MASLD comorbid with other liver diseases), and cryptogenic SLD group with 22 patients. The above groups were compared in terms of clinical features, laboratory markers, and advanced liver fibrosis. The MASLD patients with different types of MRF were compared in terms of clinical features, laboratory markers, and advanced liver fibrosis, and the risk factors for advanced liver fibrosis in patients with MASLD were analyzed. The Kruskal-Wallis H test was used for comparison of continuous data with skewed distribution between multiple groups and further comparison between two groups； the chi-square test was used for comparison of categorical data between multiple groups, and Bonferroni correction was used for further comparison between two groups. The logistic regression analysis was used to identify the risk factors for liver fibrosis. Results Among the 515 patients with SLD, 297 patients (57.7%) met the diagnostic criteria for NAFLD, among whom 22 were classified as cryptogenic SLD and 275 met the diagnostic criteria for MASLD, and 467 (90.7%) were diagnosed with MAFLD. There were significant differences between the three groups in sex, body mass index (BMI), gamma-glutamyl transpeptidase, triglyceride, cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, fasting plasma glucose, NAFLD fibrosis score (NFS), fibrosis-4 (FIB-4), and F3-4 (all P<0.05). Compared with the MASLD group and the cryptogenic SLD group, the comorbid group had the highest proportion of patients with advanced liver fibrosis (P<0.001) . With the increase in the type of MRF, the patients tended to have an older age, a significantly higher proportion of female patients, a higher possibility of hypertension and diabetes, and higher levels of metabolic parameters including BMI, blood lipids, and blood glucose (all P<0.05) . With the increase in the types of MRF in MASLD patients, they tended to have significantly higher noninvasive fibrosis scores (NFS and FIB-4) and a significantly higher proportion of patients with advanced liver fibrosis (P<0.05). The multivariate logistic regression analysis showed that age ≥50 years (odds ratio [OR] =2.622, 95% confidence interval [CI] : 1.091—6.300, P=0.031) and the increase in the type of MRF (OR=1.876, 95%CI: 1.194—2.947, P=0.006) were independent risk factors for MASLD with severe liver fibrosis. Conclusion The new definition of MASLD is based on the positive identification of MRF, and the reclassified population of MASLD is smaller than that of MAFLD, with little difference from that of NAFLD. In addition, age ≥50 years and the increase in the type of MRF are independent risk factors for MASLD with advanced liver fibrosis. [ABSTRACT FROM AUTHOR]

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Copyright of Chemical Engineering (China) / Huaxue Gongcheng is the property of Hualu Engineering Science & Technology Co Ltd. 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 Feed Research is the property of Editorial Board of Feed Research 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.)

Resolution is one of the most important methods for the preparation of optically active compounds. Classic physical resolution via crystallization assisted by chiral resolution reagents can usually provide one compound with highly optical purity. As an important asymmetric synthetic technology, kinetic resolution has become a powerful tool for the construction of multifunctional enantioenriched molecules and has been widely used in the synthesis of drugs and natural products. Therefore, we designed a kinetic resolution experiment based on alkene E→Z isomerization catalyzed by a photoexcited chiral copper complex. This experiment involves substrate synthesis, separation and purification, photocatalytic reaction, kinetic resolution curve drawing and condition verification. Many experimental skills are concerned in this experiment, including column chromatography separation, (preparative) thin layer chromatography (TLC), gas chromatography (GC) and chiral high-performance liquid chromatography (HPLC), which can not only exercise students' comprehensive experimental skills, but also let students feel the advantages of kinetic resolution, photocatalysis and excited transition metal catalysis technologies. The experiment is designed reasonably with strong operability and high safety. It lasts 24 hours in total, including three one-day individual experiments. It is very suitable for the courses of organic chemistry experiment or comprehensive chemistry experiment. [ABSTRACT FROM AUTHOR]

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 Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering 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 Geodesy & Geodynamics (1671-5942) is the property of Editorial Board Journal of Geodesy & Geodynamics 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 Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao is the property of Editorial Department of Drainage & Irrigation Machinery 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.)

Copyright of Plateau Meteorology is the property of Plateau Meteorology 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.)

目的 探讨基于小规模限制性在线课程(SPOC)的改良版对分课堂在护理临床教学中的应用 效果。方法 选取某三级甲等医院心内科2022年7-11月入科的90名护理学生(护生)作为对照组, 2022年 12月至2023年4月入科的84名护生作为观察组。观察组采用基于 SPOC的改良版对分课堂教学, 对照组采 用传统教学。比较教学前后2组护生的理论、技能考核成绩、问题解决能力和教学满意度。结果 观察组理论 考核成绩、技能考核成绩、问题解决能力得分均高于对照组, 观察组对教学模式、教学安排、教学效果三方面的 满意度高于对照组, 差异均有统计学意义(P<0.05)。结论 应用基于SPOC的改良版对分课堂教学模式, 可 以有效提高护生的问题解决能力, 提高学习效果和教学满意度。 [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research 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 Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute of 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 Journal of Aeronautical Materials is the property of Editorial Board of Journal of Aeronautical Materials 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 Science Technology & Engineering is the property of Chinese Society of Technology Economics 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 Engineering Geology / Gongcheng Dizhi Xuebao is the property of Journal of Engineering Geology 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 Southeast University / Dongnan Daxue Xuebao is the property of Journal of Southeast University 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 Journal of Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao is the property of Editorial Department of Drainage & Irrigation Machinery 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.)

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.)

Maximum likelihood estimation and Bayesian analysis are exploited to study the quantum phase estimation in a twin-Fock state input Mach-Zehnder (M-Z) interferometer. After the theoretical and numerical calculation of particle-number difference measurement and parity measurement at the output of M-Z interferometer, the Bayesian analysis combined with particle-number difference measurement is found to be the best scheme for the optimal phase estimation, and the precision attains the quantum measurement limit given by quantum Cramer-Rao Lower Bound in full phase space. Meanwhile, the number of sample needed in Bayesian analysis is less than Maximum likelihood estimation. In the study of parity measurement, Bayesian analysis is found unsuitable for phase estimation, but Maximum likelihood estimation is good. With the Monte Carlo simulation of the specific phase estimation, the theoretical result is verified, i.e., the precision of phase estimation will change with the change of estimated θ0. Compared with the result of particle-number difference measurement, we further confirm the superiority of the particle-number difference measurement. [ABSTRACT FROM AUTHOR]