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绿茶粉对产蛋后期皖南三黄鸡生产性能、屠宰性能和血液生化指标的影响

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家禽科学 2024年第5期46卷 7-13页

作者：李三军李俊营戚仁荣马瑞钰刘伟万意詹凯安徽省农业科学院畜牧兽医研究所/畜禽产品安全工程安徽省重点实验室安徽合肥230031

本试验旨在探究夏秋茶绿茶粉对产蛋后期皖南三黄鸡产蛋性能、屠宰性能和血液生化指标的影响。将健康状况良好、体重相近的108只62周龄皖南三黄鸡母鸡随机分为对照组(GTP 0)、GTP 0.5组、GTP 1.0组和GTP 1.5组,每组3个重复,每个重复9只... 详细信息

本试验旨在探究夏秋茶绿茶粉对产蛋后期皖南三黄鸡产蛋性能、屠宰性能和血液生化指标的影响。将健康状况良好、体重相近的108只62周龄皖南三黄鸡母鸡随机分为对照组(GTP 0)、GTP 0.5组、GTP 1.0组和GTP 1.5组,每组3个重复,每个重复9只。对照组饲喂玉米-豆粕型基础日粮,GTP 0.5组、GTP 1.0组和GTP 1.5组分别饲喂含0.5%、1.0%和1.5%绿茶粉的基础日粮。试验期8周。结果显示:与对照组相比,试验组产蛋率显著降低(P<0.05);GTP 1.0组平均蛋重显著高于对照组(P<0.05),GTP 0.5组和GTP 1.5组平均蛋重和日采食量均低于对照组,而料蛋比则高于对照组(P<0.05);试验组腹脂率随着GTP添加量增加呈降低趋势,其中GTP 1.5组腹脂率显著低于对照组(P<0.05);GTP 0.5组血液总胆固醇(T-CH)含量显著低于对照组(P<0.05);GTP 0.5组血液丙二醛(MDA)含量显著低于对照组(P<0.05),而超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)含量则显著高于对照组(P<0.05)。综上所述,在本试验条件下,添加绿茶粉可以改善产蛋后期皖南三黄鸡的血液生化指标和降低腹脂率,但同时也降低了产蛋性能。

关键词：皖南三黄鸡绿茶粉产蛋性能屠宰性能生化指标

北方平原地区烟草农机农艺融合发展思考——以平顶山市烟叶产区为例

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农业工程 2024年第6期14卷 15-19页

作者：李俊营张迪阴广宇李怡函张富生刘建军杨立权河南省烟草公司平顶山市公司河南平顶山467000 平顶山学院河南省超声技术应用工程研究中心河南平顶山467000

近年来我国农机装备水平显著提高,机械已成为农业生产的主力军。以规模化种植、机械化作业、集约化经营、专业化分工和信息化管理为主要特征的现代烟草农业建设水平持续提升,而烟叶生产全程机械化应用与大农业相比仍有差距,不能有效满... 详细信息

近年来我国农机装备水平显著提高,机械已成为农业生产的主力军。以规模化种植、机械化作业、集约化经营、专业化分工和信息化管理为主要特征的现代烟草农业建设水平持续提升,而烟叶生产全程机械化应用与大农业相比仍有差距,不能有效满足降劳减工的需求。针对河南省平顶山市烟叶产区烟叶种植机械发展现状及影响因素进行了分析与思考,提出了推进北方平原地区烟草农机农艺融合发展对策。

关键词：烟叶种植机械农机农艺融合北方平原烟区农业机械化

Observation of robust anisotropy in WS_(2)/BP heterostructures

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Nano Research 2024年第7期17卷 6749-6756页

作者： Xinran li Xing Xie Biao Wu junying Chen Shaofei li Jun He Zongwen liu Jian-Tao Wang Yanping liu Institute of Quantum Physics School of PhysicsCentral South University932 South Lushan RoadChangsha 410083China State Key Laboratory of Precision Manufacturing for Extreme Service Performance Central South University932 South Lushan RoadChangsha 410083China School of Chemical and Biomolecular Engineering The University of SydneyNSW 2006Australia The University of Sydney Nano Institute The University of SydneyNSW 2006Australia Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Songshan Lake Materials Laboratory Dongguan 523808China Shenzhen Research Institute of Central South University Shenzhen 518000China

Two-dimensional(2D)anisotropic materials have garnered significant attention in the realm of anisotropic optoelectronic devices due to their remarkable electrical,optical,thermal,and mechanical *** extensive research has delved into the optical and electrical characteristics of these materials,there remains a need for further exploration to identify novel materials and structures capable of fulfilling device requirements under various ***,we employ heterojunction interface engineering with black phosphorus(BP)to disrupt the C_(3) rotational symmetry of monolayer WS_(2).The resulting WS_(2)/BP heterostructure exhibits pronounced anisotropy in exciton emissions,with a measured anisotropic ratio of 1.84 for neutral *** a comprehensive analysis of magnetic-field-dependent and temperature-evolution photoluminescence spectra,we discern varying trends in the polarization ratio,notably observing a substantial anisotropy ratio of 1.94 at a temperature of 1.6 K and a magnetic field of 9 *** dynamic behavior is attributed to the susceptibility of the WS_(2)/BP heterostructure interface strain to fluctuations in magnetic fields and *** findings provide valuable insights into the design of anisotropic optoelectronic devices capable of adaptation to a range of magnetic fields and temperatures,thereby advancing the frontier of material-driven device engineering.

关键词： two-dimensional materials in-plane anisotropy black phosphorus heterojunctions optoelectronic devices photoluminescence spectra

不同钾肥对水肥一体化下烤烟碳氮代谢与钾吸收的影响

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陕西农业科学 2024年第8期70卷 85-90页

作者：王明鑫邓兆龙孔嘉欣金维环李俊营郭红祥河南省烟草公司平顶山市公司河南平顶山467002 河南农业大学生命科学学院河南郑州450002

为解决平顶山烟区烤烟钾含量偏低的问题,以烤烟品种中烟100为材料,基于水肥一体化栽培管理,研究了不同钾肥对烤烟碳氮代谢与钾吸收的影响。结果表明:配合水肥一体化四次追施自制钾肥,以及施用缓释钾肥和生物钾肥都能提高烟株光合能力与... 详细信息

为解决平顶山烟区烤烟钾含量偏低的问题,以烤烟品种中烟100为材料,基于水肥一体化栽培管理,研究了不同钾肥对烤烟碳氮代谢与钾吸收的影响。结果表明:配合水肥一体化四次追施自制钾肥,以及施用缓释钾肥和生物钾肥都能提高烟株光合能力与碳氮代谢水平,促进烟株生长发育,促进效应依次是缓释钾肥>生物钾肥>自制钾肥。施用不同种类钾肥能够提高烟株体内SOD等保护酶的活性,增强烤烟抗性,这种促进效应的基本顺序是生物钾肥>缓释钾肥>自制钾肥。钾代谢相关基因表达分析表明,这三种钾肥的合理使用能够有效促进钾的吸收与转运、减少钾的外排,进而增加烟株中钾的储存。配合水肥一体化四次追施自制钾肥和施用缓释钾肥两个处理对中上部烟叶钾含量有明显的提升作用。

关键词：烤烟钾肥碳氮代谢钾吸收钾含量

Calcium-fortified fresh milk ameliorates postmenopausal osteoporosis via regulation of bone metabolism and gut microbiota in ovariectomized rats

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Food Science and Human Wellness 2024年第3期13卷 1258-1270页

作者： Qishan Wang Bin liu Xianping li junying Zhao Zongshen Zhang Weicang Qiao Xinyue Wei lijun Chen School of Bioengineering Dalian Polytechnic UniversityDalian 116034China National Engineering Research Center of Dairy Health for Maternal and Child Beijing Sanyuan Foods Co.Ltd.Beijing 100163China Beijing Engineering Research Center of Dairy Beijing Sanyuan Foods Co.Ltd.Beijing 100163China

The aging of the global population has made postmenopausal osteoporosis prevention essential;however,pharmacological treatments are ***,we evaluate the effect of calcium-fortified fresh milk(FM)in ameliorating postmenopausal osteoporosis in a rat model established using bilateral *** 3 months of FM(containing vitamin D,and casein phosphopeptides,1000 mg Ca/100 g)or control milk(110 mg Ca/100 g milk)supplementation,bone changes were assessed using dual-energy X-ray absorptiometry,microcomputed tomography,and bone biomechanical *** results revealed that FM can regulate bone metabolism and gut microbiota composition,which act on bone metabolism through pathways associated with steroid hormone biosynthesis,relaxin signaling,serotonergic synapse,and unsaturated fatty acid ***,FM administration significantly increased bone mineral content and density in the lumbar spine and femur,as well as femoral compressive strength,while improving femoral trabecular bone parameters and ***,we found that the effects may be due to increased levels of estrogen,bone formation marker osteocalcin,and procollagen typeⅠN-propeptide,and decreased expression of the bone resorption marker C-telopiptide and tartrate-resistant acid phosphatase ***,the findings suggest that FM is a potential alternative therapeutic option for ameliorating postmenopausal osteoporosis.

关键词： Dairy products Calcium Vitamin D Bone turnover markers Gut microbiota Postmenopausal osteoporosis

气流上升式密集烤房温湿度场分布及其对烟叶质量的影响

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烟草科技 2024年第3期57卷 43-55页

作者：陈祖销李俊营藏照阳张红杰过伟民孟杨刘剑君张富生周汉平王爱国徐嫱张艳玲中国烟草总公司郑州烟草研究院郑州450001 河南省烟草公司平顶山市公司河南省平顶山市467002 河南中烟工业有限责任公司黄金叶生产制造中心郑州450016 河南工业大学粮油食品学院郑州450001 河南省烟草公司郑州市450018

为明确烟叶烘烤过程烤房的温湿度场分布差异及其对烟叶质量的影响,通过在烤房内均匀放置温湿度传感器采集烘烤过程的环境温湿度数据,从垂直和水平角度分析气流上升式烤房的温湿度分布规律,并研究了烤房不同区位烟叶的烘烤质量差异。结... 详细信息

为明确烟叶烘烤过程烤房的温湿度场分布差异及其对烟叶质量的影响,通过在烤房内均匀放置温湿度传感器采集烘烤过程的环境温湿度数据,从垂直和水平角度分析气流上升式烤房的温湿度分布规律,并研究了烤房不同区位烟叶的烘烤质量差异。结果表明:(1)烤房垂直和水平方向的温湿度均存在显著差异,变黄前期至变黄中期差异较小,变黄后期至定色前期差异增大,定色中期至干筋后期差异减小,且烤房垂直方向的温湿度差异大于水平方向。(2)对烤房烘烤过程的温湿度时序数据进行聚类分析,可将烤房18个区位较好地分为3类,即高温低湿区域、中温中湿区域和低温高湿区域。(3)在鲜烟素质一致的条件下,烤后烟叶样品烘烤损失、上等烟比例、主要化学成分和外观评价得分整体上均没有显著性差异。(4)总糖、还原糖和淀粉含量在垂直方向有上层中端>后端的趋势,两糖比值分布规律与之相反;垂直方向下层烟叶存在颜色纯正度、柔软度和油润感得分较高的趋势,水平方向中端烟叶存在颜色纯正度、光泽度、柔软度和油润感得分较高的趋势。基于烤房温湿度分布规律研究,有助于为烤房合理分类装烟和烘烤工艺仿真提供数据支撑。

关键词：密集烤房烟叶烘烤温度相对湿度分布规律烟叶质量

Unveiling optical anisotropy in disrupted symmetry WSe_(2)/SiP heterostructures

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Nano Research 2024年第9期17卷 8585-8591页

作者： Biqi Hu Xing Xie Xinyu Ouyang junying Chen Shaofei li Jun He Zongwen liu Jian-Tao Wang Yanping liu Institute of Quantum Physics School of PhysicsCentral South University932 South Lushan RoadChangsha 410083China State Key Laboratory of Precision Manufacturing for Extreme Service Performance Central South University932 South Lushan RoadChangsha 410083China School of Chemical and Biomolecular Engineering The University of SydneyNSW 2006Australia The University of Sydney Nano Institute The University of SydneyNSW 2006Australia Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Songshan Lake Materials Laboratory Dongguan 523808China Shenzhen Research Institute of Central South University Shenzhen 518000China

Two-dimensional(2D)transition metal dichalcogenides(TMDs)have garnered considerable attention for their promising applications in sensors and optoelectronic devices,owing to their exceptional optical,electronic,and optoelectronic ***,the inherent high symmetry of TMD lattices imposes limitations on their functional ***,we present a strategy to disrupt the C_(3)rotational symmetry of monolayer WSe_(2)by fabricating a heterostructure incorporating WSe_(2)and SiP *** comprehensive experimental investigations and first-principle calculations,we elucidate that in the WSe_(2)/SiP heterostructure,excitons-both neutral and charged-emanating from WSe_(2)exhibit pronounced anisotropy,which remains robust against temperature ***,we observe an anisotropic ratio reaching up to 1.5,indicating a substantial degree of ***,we demonstrate the tunability of exciton anisotropy through the application of a magnetic field,resulting in a significant reduction in the anisotropic ratio with increasing field strength,from 1.57 to ***,the change in heterojunction anisotropy ratio reaches 24.8%as the magnetic field *** findings elucidate that the perturbation of the C_(3)rotational symmetry of the WSe_(2)monolayer arises from a non-uniform charge density distribution within the layer,exhibiting mirror *** results underscore the potential of heterostructure engineering in tailoring the properties of isotropic materials and provide a promising avenue for advancing the application of anisotropic devices across various fields.

关键词： symmetry breaking heterostructure engineering anisotropy optical spectroscopy

烤烟漂浮育苗隐性感染烟苗危害损失研究和防治药剂筛选

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植物医学 2024年第3期3卷 61-71页

作者：何晓冰王颢杰李俊营常栋周硕野孟颢光蒋士君崔江宽河南省烟草公司平顶山市公司河南平顶山467000 河南农业大学植物保护学院郑州450046 河南省烟草专卖局(公司) 郑州450018

近年来,黄淮烟区烤烟漂浮育苗隐性感染问题日趋严重且难以预防,严重影响了大田烟株的健康,筛选有效的植物生长调节剂防治隐性感染烟苗,对提升烤烟抗病抗逆性具有重要意义.本研究采用3种植物生长调节剂(安必神、田佰利、阿泰灵)及不同浓... 详细信息

近年来,黄淮烟区烤烟漂浮育苗隐性感染问题日趋严重且难以预防,严重影响了大田烟株的健康,筛选有效的植物生长调节剂防治隐性感染烟苗,对提升烤烟抗病抗逆性具有重要意义.本研究采用3种植物生长调节剂(安必神、田佰利、阿泰灵)及不同浓度的次氯酸钠(1000倍液、2000倍液、4000倍液)进行单剂和复配处理,针对不同等级的隐性感染烟苗进行注射灌根,以清水处理和0级烟苗为双重对照,14 d后统计不同处理对隐性感染烟苗农艺性状、根活力和MDA摩尔质量的影响.结果显示,植物生长调节剂处理对隐性感染1级和2级烟苗防效显著.次氯酸钠2000倍液与阿泰灵复配处理,相比于清水对照,能明显提升1级和2级烟苗的根长、侧根数、最大叶面积、叶绿素含量、根活力,分别提升了76.36%,57.94%,17.18%,55.67%,41.29%和32.14%,77.18%,54.67%,25.89%,28.47%;MDA摩尔质量分别降低了31.93%和37.20%;同时将1级和2级烟苗根活力提升至0级烟苗的102.91%和79.92%,而3级和4级烟苗则仅提升至0级烟苗的65.85%和36.88%.由结果可知,次氯酸钠2000倍液与阿泰灵复配处理可快速提升隐性感染1级和2级烟苗根系活力,增强烟苗抗病抗逆性,虽然对隐性感染3级和4级烟苗的防治效果较差,仍推荐选用次氯酸钠2000倍液和阿泰灵复配处理防治隐性感染烟苗.

关键词：漂浮育苗隐性感染烟苗抗病抗逆性阿泰灵

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PML–LRIF1 interactions form a novel link between promyelocytic leukemia bodies and centromeres

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Journal of Molecular Cell Biology 2023年第6期15卷 68-71页

作者： junying li Xiao Yuan Fengrui Yang Jun Cao Chunyue Wang Saima Akram Peng Zou Felix Aikhionbare Xuejun li Yong Chen liangyu Zhang Chuanhai Fu Zhikai Wang Xing liu Xuebiao Yao MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230027China Anhui Key Laboratory for Cellular Dynamics and Chemical Biology Hefei National Research Center for Interdisciplinary Sciences at the MicroscaleHefei 230027China Keck Center for Organoid Plasticity AtlantaGA 30310USA Peking-Tsinghua Center for life Sciences Peking UniversityBeĳing 100871China Department of Gastroenterology Anhui University of Chinese MedicineHefei 230038China Department of Hepatobiliary Surgery Xĳing HospitalFourth Military Medical UniversityXi’an 710033China

Dear Editor,Promyelocytic leukemia(PML)is the scaffold protein that organizes PML bod-ies,which are nuclear membraneless organelles involved in various biologi-cal processes,including tumor suppres-sion and antiviral responses(Ugge et al.,2022).Early electron microscopic analy-ses revealed contacts between the sur-face of PML bodies and chromatin struc-ture(Corpet et al.,2020).In fact,sev-eral chromatin and cell cycle regulators,such as TIP60,P300,and heterochro-matin protein 1(HP1),are localized in PML bodies in interphase cells(Corpet et al.,2020).

关键词： P300 leukemia