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Bayesian network is currently one of the most effective theoretical models in the field of uncertain knowledge expression and inference. Before utilizing Bayesian networks for analysis and inference, it is first necessary to obtain their network models through structural and parametric learning, and structure learning is the basis for parameter learning. Aiming at the existing firefly algorithm that does not conform to biological rules as well as learning the Bayesian network structure that has low efficiency and is easy to fall into local optimization, MGM-FA (firefly algorithm based on mutual information and gender mechanism) was designed. Firstly, the Bayesian network skeleton graph was obtained by calculating the mutual information of nodes, and the MGM-FA algorithm was driven to generate the initial population based on the skeleton graph. Secondly, a personalized Bayesian network population updating strategy based on the gender mechanism was introduced to safeguard the diversity of the Bayesian network individuals. Lastly, the local optimizer and perturbation operator were introduced to enhance the algorithm's ability of optimality seeking. Simulation experiments were carried out on standard networks of different sizes respectively, and the accuracy and efficiency of the algorithm are improved compared with existing algorithms of the same type. [ABSTRACT FROM AUTHOR]

By using conventional observational data and NCEP reanalysis data, the present study analyzed the temporal and spatial distribution characteristics of 66 warm-sector rainstorm (WR) cases in southern Hunan province from March to September between 2012 and 2021. These cases were categorized into three distinct types based on synoptic situation: warm sector in front of cold front (CF) type, southerly wind (SW) type, and warm shear (WS) type. Synoptic conceptual models were established for each type, and the physical parameters leading to these storms were explored. The results show that: (1) The annual variability of WRs in southern Hunan exhibited an undulating upward trend, with daily peaks occurring between 19:00 and 22:00. The storms were most extensive in May, most frequent in June with the highest maximum daily rainfall, and more localized from July to September. (2) The SW type was the most frequent with the highest maximum daily rainfall, followed by the WS type, while the CF type was the least common, with each type peaking in different months: April to June for the CF type, May to August for the SW type, and June to July for the WS type. (3) The diurnal variation of short-duration strong rainfall (hourly rainfall≥20 mm) of the CF type and the WS type was intense, while that of the SW type was slightly gentle. (4) The high-frequency area for WRs was closely related to the terrain distribution of the Nanling Mountains, Luoxiao Mountains, and Yangming Mountains; the Dongjiang Lake also contributed to increased precipitation. The CF type was more likely to occur at trumpet-shaped topography in the southwest; the WS type was concentrated on the windward slope of the Nanling Mountains and near different underlying surfaces, while the SW type's occurrence was more dispersed. (5) The main influencing systems included upper-level troughs, low-level and ultra-low-level jet streams, surface inverted troughs, and convergence lines. Moreover, the 200 hPa divergence zone, the 850 hPa warm high ridge, the significantly humid region, and the topographic effect contributed to increased precipitation. (6) The jet streams at 700 hPa, 850 hPa, and 925 hPa played important roles in the water vapor transport of the CF type, the WS type, and the SW type rainstorms, respectively. (7) The average values of physical parameters before WRs were as follows: specific humidity of 850 hPa≥13 g·kg-1, CAPE≥1 100 J ·kg-1, K-index≥37 °C, Showalter index≤-1.5, temperature difference between 850 hPa and 500 hPa ≥23 °C, lifting condensation level between 0.6 and 0.9 km, 0 °C isotherm height between 4.9 and 5.1 km, and 0-6 km vertical wind shear between 10 m·s-1 and 16 m·s-1. [ABSTRACT FROM AUTHOR]

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Copyright of Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences 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.)

Copyright of Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences 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.)

To further explore the wheat salt-tolerant germplasm and apply it to molecular breeding, provide the basis for molecular assisted selection for the efficient utilization of molecular breeding, in this study, phenotypic identification of 57 wheat micro-core germplasms was conducted by the salt injury index(SI) using salt-tolerant variety Hanxuan 10 and salt-sensitive variety Chinese Spring as the controls. Simultaneously, the tested germplasms were marked with 24 reported salt-tolerancerelated molecular markers. The results showed that SI of the tested germplasms displayed a normal distribution after stress by 250 mmol/L of NaCl solution, and the number of germplasms showing high sensitive, sensitive, medium tolerant, tolerant, and high tolerant were 5, 21, 24, 6, and 1, respectively. Among the germplasms, 7 varieties with excellent salt tolerance(SI＜ 40.00%) were Daimanghongmai, Huangguaxian, Banjiemang, Xiaoyan 6, Xingyi 4, Atlas 66, and Heshangmai. The salt tolerance grade of Daimanghongmai, Huangguaxian, and Banjiemang was obviously higher than that of the control Hanxuan 10 (SI=30.00%), especially Daimanghongmai was a high-tolerant germplasm(SI=14.24%). Marker analysis results showed that Xcfd9 had 3 genotypes a, b, and c among the tested germplasm, and their corresponding average SI was 49.59% (medium tolerant), 57.06%(medium tolerant), and 64.74%(sensitive), respectively, showing a significant difference, which indicated that Xcfd9 was closely related to salt tolerance of the tested germplasms, and the a- or b-genotype existed in all of the 7 salt-tolerant germplasms screened in this study. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Laser Biology / Acta Laser Biology Sinica is the property of Acta Laser Biology 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 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.)

收缩型平滑肌细胞标志蛋白平滑肌22 alpha (SM22α)是一种重要的细胞骨架相关蛋白,进化上高度保守,在维持血管稳态中起关键作用。近年研究发现,SM22α表达异常与肿瘤的分化状态密切相关,其不仅作为一种肌动蛋白相关蛋白,还作为信号分子在肿瘤细胞侵袭、转移、细胞增殖、凋亡、细胞外基质降解、自噬和耐药等过程中发挥作用。 [ABSTRACT FROM AUTHOR]

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 Environmental Science & Technology (10036504) is the property of Editorial Board of Environmental 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.)

In order to improve the application frequency of large-scale instruments, make the resources reasonabe and effective, give full play to the role of large-scale instruments in teaching and research, resource sharing of large-scale instruments is the inevitable developing trend of testing center. The work had been done by "985" instrumental analysis center in resource sharing construction is introduced from three aspects: establishment of the operating mechanism, intelligent management system construction and the improvement of professional quality of the experimental technical personnel. Meanwhile, the role of resource sharing of large-scale instrument in teaching and research of School of Chemical Engineering also is discussed. [ABSTRACT FROM AUTHOR]

Copyright of Bulletin of Botanical Research is the property of Bulletin of Botanical Research 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.)

In order to meet the request of "Accreditation Criteria for the Competence of Testing and Calibration Laboratories", traceability plan making is necessary. In order to standardize the work of traceability plan making and laboratory equipment management, this paper discusses the scope and requirement of laboratory equipment traceability plan making. Besides, a new method, which is the close-loop management of traceability plan implement, is proposed. In the paper, the comprehensive application of software Office makes the laboratory close-loop management easier. In the way of standardized plan making and the close-loop management, the statistic data of can be collected for equipment management, the effectiveness of laboratory equipment management can be promoted, and the work of traceability rolling plan making can be enlightened. This method gains good application effect in laboratory management. [ABSTRACT FROM AUTHOR]

In order to study the seismic behavior and repairing capacity of CFRP reinforced engineered cementitious composite (ECC) columns, six engineered cementitious composite columns reinforced with carbon fiber reinforced plastic bars (CFRP-ECC columns) were designed. Three of the specimens without strengthening were control specimens. The other three specimens were pre-damaged and then strengthened with CFRP sheets. Taking the axial compression ratio and shear span-depth ratio as parameters, this paper presented studies on the seismic behavior of specimens under reversed cyclic load. The failure patterns, hysteretic curve, skeleton curve, stiffness degradation, ductility, comprehensive performance index and energy dissipation capacity of specimens were further studied. The results indicate that CFRP-ECC columns show obvious multiple-cracking behaviors and excellent deformation capacity. After the test is completed, the specimens still have good integrity, and all specimens show the characteristics of flexural failure mode. With the increase of axial compression ratio, the horizontal ultimate load of specimens and the area of hysteresis curve increase. With the increase of shear span-depth ratio, the ultimate horizontal displacement increases, but the horizontal ultimate load of specimens decreases. The accumulated hysteretic energy of the strengthened specimens is 2.0 - 4.2 times higher than that of the unstrengthened specimens. The strengthened specimens still have great energy dissipation ability, indicating that the CFRP-ECC columns have good recoverability and using CFRP sheets to strengthen such columns is effective and feasible. [ABSTRACT FROM AUTHOR]