检索结果-南通市图书馆

Journal of Integrative Plant Biology 2011年第1期53卷 14-24页

作者： Chunyan Gong Tang Li Qi Li longfeng yan Tai Wang Research Center forMolecular &-Deveiopmental Biology Key Laboratory of Photosynthesis & Environmental Molecular Physiology Institute of Botany. the Chinese Academy of Sciences and National Center for Plant Gene Research Beijing 100093 China Graduate School of the Chinese Academy of Sciences. Beiiina 100049 China

Rad21 and its meiotic counterpart Rec8, the key components of the cohesin complex, are essential for sister chromatid cohesion and chromosome segregation in mitosis and meiosis, respectively. In contrast to yeast and vertebrates, which have only two RAD211REC8 genes, the rice genome encodes four Rad21/Rec8 proteins. Here, we report on the cloning and characterization of OsRAD21-2 from rice （Oryza sativa L.）. Phylogenetic analysis of the full-length amino acids showed that OsRad21-2 was grouped into the plant-specific Rad21 subfamily. Semi-quantitative reverse transcription-polymerase chain reaction revealed OsRAD21-2 preferentially expressed in premeiotic flowers. Further RNA in situ hybridization analysis and promoter：：β-glucuronidase staining indicated that OsRAD21-2 was mainly expressed in actively dividing tissues including premeiotic stamen, stem intercalary meristem, leaf meristem, and root pericycle. Ectopic expression of OsRAD21.2 in fission yeast resulted in cell growth delay and morphological abnormality. Flow cytometric analysis revealed that the *** cells were arrested in G2 phase. Our results suggest that OsRad21-2 functions in regulation of cell division and growth.

关键词： Genomes Meristems Growth Hybridization Rice Cells Lymphocytes Yeasts

土壤调理剂与叶面钾肥配合施用对烟叶产质的影响

在线全文

学校读者我要写书评

暂无评论

中国农学通报 2024年第12期40卷 33-37页

作者：沈毅闫鼎蔡宪杰倪霞李德文未启立左伟标夏文凯桂龙凤赵声春刘振宁罗启鹏上海烟草集团有限公司上海200082 云南省烟草公司昭通市公司云南昭通657000 云南省微生物发酵工程研究中心有限公司昆明650217 华环国际烟草有限公司安徽滁州233121

本研究旨在评估酸性土壤调理剂与叶面钾肥配合施用对烤烟(Nicotiana tabacum L.)农艺性状、产量和品质的影响。通过田间试验,分析了单独使用酸性土壤调理剂以及与不同类型钾肥(硫酸钾、磷酸二氢钾和硫酸钾镁)喷施相结合的效果。结果表明... 详细信息

本研究旨在评估酸性土壤调理剂与叶面钾肥配合施用对烤烟(Nicotiana tabacum L.)农艺性状、产量和品质的影响。通过田间试验,分析了单独使用酸性土壤调理剂以及与不同类型钾肥(硫酸钾、磷酸二氢钾和硫酸钾镁)喷施相结合的效果。结果表明,酸性土壤调理剂能显著改善烟株的农艺性状并提升产量。在施用土壤调理剂的基础上,叶面喷施钾肥进一步促进了烟叶的早衰和落黄,提高了上中等烟叶的比例,其中以硫酸钾和磷酸二氢钾处理的效果最为明显。就烟叶品质而言,硫酸钾喷施显著改善了烟叶的外观质量;而磷酸二氢钾处理则在化学成分协调性方面表现更佳。此外,硫酸钾镁喷施显著增加了烟叶中的总糖和还原糖含量。钾含量分析显示,C3F等级烟叶的钾含量得到显著提升,而B2F等级的提升幅度较小。综上所述,酸性土壤调理剂与叶面钾肥的合理配合施用能够有效提高烟叶的产量和品质,为烤烟生产提供了重要的肥料管理策略。

关键词：酸性土壤调理剂叶面钾肥烤烟农艺性状烟叶品质

Effects of Different Chemical Fertilizer Reduction Techniques on Flue-cured Tobacco Production

在线全文

学校读者我要写书评

暂无评论

Agricultural Biotechnology 2023年第6期12卷 48-51,61页

作者： longfeng GUI Lei XIA Jing yanG Wei yan Yu ZHOU Yuzhong ZHOU Haohan GONG Mengsheng ZHANG Yeming FU Xianyi ZENG Xia NI Zhaotong Company Yunnan Provincial Tobacco CompanyZhaotong 657000China

[Objectives]This study was conducted to find out the most suitable special formula fertilizer for flue-cured tobacco production in tobacco-growing areas of Zhaotong City,so as to provide a basis for scientific fertilization and reduced application of inorganic fertilizers with improved efficiency in tobacco production in Zhaotong City.[Methods]Different formulas of special base fertilizer and special topdressing for tobacco were designed by optimizing and adjusting the application amounts and proportions of nitrogen,phosphorus,potassium and medium trace elements in fertilizer formulas,and the formulas of special base fertilizer and special topdressing for flue-cured tobacco production were selected through a field plot experiment.[Results]The combination of special base fertilizer and special topdressing was conducive to the early growth and rapid growth of tobacco plants under the condition of reduced fertilizer application,and the treatment using organic-inorganic compound fertilizer as the special base fertilizer was the most obvious,with an average growth period of two days *** with conventional fertilization,the yield,output value,average price,proportion of superior tobacco and proportion of medium and superior tobacco increased in the organic-inorganic compound fertilizer treatment,with the yield increasing by 5.96%,the output value increasing by 17.08%,the average price increasing by 10.49%,the proportion of superior tobacco increasing by 4.63%,and the proportion of medium and superior tobacco increasing by 2.44%.It was concluded from indexes including growth period,agronomic traits,disease incidence and economic traits,the fertilization mode of organic-inorganic compound fertilizer with the addition of trace elements(boron,magnesium and zinc)applied as the base fertilizer and nitrogen and potassium topdressing was most efficient and economic.[Conclusions]This study provides a basis for scientific fertilization and reduced application of inorg

关键词： Fertilizer Flue-cured tobacco production Soil nutrient Economic character Quality of flue-cured tobacco Zhaotong

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国共产党历史自信生成的三重逻辑

重庆邮电大学学报（社会科学版） 2023年第4期35卷 22-31页

作者：张艳杨龙奉重庆第二师范学院党政办公室重庆400065 重庆第二师范学院马克思主义学院重庆400065

坚定历史自信是走好新的赶考之路的动力源泉。中国共产党历史自信的生成有着深刻的历史逻辑、理论逻辑和现实逻辑。从历史逻辑看,历史自信是大历史观和正确党史观的内在要求,历史自信根植于五千多年中华优秀文明的深厚沃土,镜鉴于苏共... 详细信息

坚定历史自信是走好新的赶考之路的动力源泉。中国共产党历史自信的生成有着深刻的历史逻辑、理论逻辑和现实逻辑。从历史逻辑看,历史自信是大历史观和正确党史观的内在要求,历史自信根植于五千多年中华优秀文明的深厚沃土,镜鉴于苏共历史虚无主义的深刻教训,内蕴于党百年奋斗中“四次伟大飞跃”的历史成就。从理论逻辑看,历史自信发轫于唯物史观的理论遵循。唯物史观对人类社会发展规律的深刻揭示和“人民至上”的根本立场赋予中国共产党人真理自信与价值自信,夯实了党坚定历史自信的理论根基和思想前提;历史自信赓续于中共党史观的百年演进,中国共产党始终将历史自信贯穿于百年奋斗实践,并且注重涵养自信的党史观,培塑出自信的政党品质和精神境界;历史自信提升于“两个结合”的理论创造,马克思主义中国化的理论成果和“两个结合”的实践过程,更加巩固了党的历史自信。从现实逻辑看,历史自信的生成蕴含着现实基础与现实需要的辩证逻辑,“两大奇迹”时代成就的国内国际价值意义为历史自信提供了现实依据和理解维度,历史自信既是应对世界百年未有之大变局、实现中华民族伟大复兴历史任务的迫切需要,又是建设长期执政的马克思主义政党的题中之义。

关键词：历史自信唯物史观党史观长期执政

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

湿陷性黄土地区明渠陡槽加墩消能工优化试验

长江科学院院报 2024年第5期41卷 95-102页

作者：刘伯承李广宁韩延成刘永德孙双科济南大学水利与环境学院济南250022 中国水利水电科学研究院北京100038 庆阳陇沣海绵城市建设管理运营有限责任公司甘肃庆阳745000

明渠陡槽加墩是一种高效消能工布置方式,在特定条件下具有很高的技术竞争优势,但目前国内相关研究甚少。针对甘肃庆阳小崆峒沟雨水下塬排放工程的明渠陡槽加墩段进行了1∶30大比尺水工模型试验研究,试验发现初步方案沿程水流流态不稳定... 详细信息

明渠陡槽加墩是一种高效消能工布置方式,在特定条件下具有很高的技术竞争优势,但目前国内相关研究甚少。针对甘肃庆阳小崆峒沟雨水下塬排放工程的明渠陡槽加墩段进行了1∶30大比尺水工模型试验研究,试验发现初步方案沿程水流流态不稳定,存在向外泼溅溢出现象,危及黄土边坡的结构稳定。为此对初步方案进行了优化研究,试验发现,通过缩短消能墩排距,可以显著减小水面波动,使沿程水深分布均匀,流速降低,沿程不再出现水流向外泼溅溢出现象。消能墩排距由H/i缩短至0.5H/i后,在最大设计流量工况下,水面波动减小72.5%,平均流速降低40.1%,总消能率由87.9%提高至94.6%。

关键词：湿陷性黄土地区明渠陡槽加墩模型试验消能效果水面波动

维普期刊数据库博看期刊

临床一线抗病毒药物对慢性乙型肝炎治疗结局的影响

在线全文

学校读者我要写书评

暂无评论

中华肝脏病杂志 2017年第7期25卷 485-489页

作者：赵龙凤王艳山西医科大学第一医院感染病科太原030001

慢性乙型肝炎是一种进展性疾病，治疗不及时就有可能发展为肝硬化、肝癌甚至肝功能衰竭。抗病毒治疗是延缓慢性乙型肝炎的疾病进展的重要手段，通过长期抑制HBVDNA复制，可减轻肝细胞炎性坏死及肝纤维化，延缓和减少肝功能衰竭、肝硬化... 详细信息

慢性乙型肝炎是一种进展性疾病，治疗不及时就有可能发展为肝硬化、肝癌甚至肝功能衰竭。抗病毒治疗是延缓慢性乙型肝炎的疾病进展的重要手段，通过长期抑制HBVDNA复制，可减轻肝细胞炎性坏死及肝纤维化，延缓和减少肝功能衰竭、肝硬化失代偿、肝细胞癌及其他并发症的发生，从而改善生活质量和延长生存时间。本文从目前全球正在使用的恩替卡韦、替诺福韦酯等一线抗病毒药物的临床研究数据出发，阐述了抗病毒治疗对于慢性乙型肝炎患者治疗结局的影响。

关键词：肝炎乙型慢性干扰素类治疗结局抗病毒药核苷(酸) 类似物

肺癌与过表达microRNAs关系的研究(英文)

在线全文

学校读者我要写书评

暂无评论

The Chinese-German Journal of Clinical Oncology 2013年第9期12卷 443-447页

作者： longfeng Xu Zhiping Wu yan Chen Rui Feng Chun Hou Fan yang Qishun Zhu Key Laboratory for Animal Genetic Diversity and Evolution of High Education in Yunnan Province Yunnan University Cancer Institute The Thirrd Affiliated Hospital of Kunming Medical University The Fifth High School of Guandu District Department of Base Medicine Yunnan Chinese Traditional Medical College

MicroRNAs(miRNAs),which contains approximately 22 nt,belong to a small endogenous,non-coding regulatory single-stranded RNA *** are posttranscriptional regulators of gene expression and highly conserved in *** researches show that miRNAs involved in many processes,including tumor formation,cell proliferation and apoptosis and proliferation and metastasis of cancer *** that,the relationship between miRNAs and lung cancer is one of the most focal areas for the researchers,because the abnormal expressions of miRNAs were significantly associated with the occurrence and development of lung *** expression level of different miRNAs in lung cancer cells exist differences,compared with normal lung tissue cells,there are two classes of expression:over-expression level and low expression *** this review,we focused on studying the mechanism of overexpression miRNAs in lung cancer.

关键词： microRNA 肺癌细胞过度表达 miRNA 小分子RNA 细胞增殖基因表达进化过程

Clinical characteristics and risk factors of 27 liver failure patients complicated by invasive fungal infections

在线全文

学校读者我要写书评

暂无评论

Health 2011年第1期3卷 39-42页

作者： longfeng Jiang Jun Li Yaping Han Yuan Liu Youde yan Nian Chen Li Dong Donghui Zhou Ruiyun Wang 不详

To investigate the clinical feature, risk factors and outcome of treatment in patients with liver failure complicated by invasive fungal infections. Retro-spective analysis of the clinical data and related factors of 27 patients with liver failure com-plicated by invasive fungal infections was per-formed. These patients were admitted from January 2007 to August 2009 in our department. Among them, Candida albicans accounted for 17cases (54.84%), albicans tropicals for 4 cases (12.90%). Fungal infection in respiratory tract and alimentary tract accounted for 58.06% and 11% respectively. 81.25% of them had fever fluctuating from 37.4oC to 40oC. 81.25% had elevated white blood cell counts .All had the usage of broad-spectrum of antibiotics, whereas some of them used corticosteroids and had invasive medical manipulation for the treatment. Most patients deteriorated after invasive fungal infections. 21 cases accepted with the treatment of antifungal drugs and mortality rate was 63.00%. It was found that the invasive fungal infection possibility of patients with liver failure significantly increased. To prevent the occurrence of invasive fungal infection, promptly early treatment of liver failure, proper use of antibiotics, cautious use or disuse of corticosteroids, reduction of invasive medical manipulation should be well done. Early detection and treatment of fungal infection are vital to decrease in mortality rate.

关键词： Fungus Diseases Immunity Liver Failure Clinical Feature Aspergillus

Clinical characteristics and risk factors of 27 liver failure patients complicated by invasive fungal infections

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

2015—2021年CHINET临床分离枸橼酸杆菌属细菌耐药性变迁

Health 2011年第1期 39-42页

作者： longfeng Jiang Jun Li Yaping Han Yuan Liu Youde yan Nian Chen Li Dong Donghui Zhou Ruiyun Wang

来源：评论

学校读者我要写书评

暂无评论

中国感染与化疗杂志 2024年第2期24卷 190-197页

作者：李可可魏莲花杨洋胡付品朱德妹徐英春张小江张朝霞季萍谢轶康梅王传清王爱敏徐元宏黄颖孙自镛陈中举倪语星孙景勇褚云卓田素飞胡志东李金俞云松林洁单斌杜艳郭素芳张泓王春胡云建艾效曼卓超苏丹虹郭大文赵金英喻华黄湘宁刘文恩李艳明金炎邵春红徐雪松鄢超王山梅楚亚菲张利侠马娟周树平周艳朱镭孟晋华董方吕志勇胡芳芳沈瀚周万青贾伟李刚吴劲松卢月梅李继红段金菊康建邦马晓波郑燕萍郭如意朱焱陈运生孟青王世富胡雪飞沈继录汪瑞忠房华俞碧霞赵勇龚萍温开镇张贻荣刘江山廖龙凤顾洪芹姜琳贺雯薛顺虹冯佼岳春雷甘肃省人民医院检验科兰州730000 复旦大学附属华山医院北京协和医院新疆医科大学第一附属医院四川大学华西医院复旦大学附属儿科医院安徽医科大学第一附属医院华中科技大学同济医学院附属同济医院上海交通大学医学院附属瑞金医院中国医科大学附属第一医院天津医科大学总医院浙江大学医学院附属邵逸夫医院昆明医科大学第一附属医院内蒙古医科大学附属医院上海交通大学附属儿童医院北京医院广州医科大学附属第一医院哈尔滨医科大学附属第一医院四川省人民医院中南大学湘雅医院山东省立医院吉林大学中日联谊医院河南省人民医院陕西省人民医院江西省儿童医院山西省儿童医院首都医科大学附属北京儿童医院贵州省人民医院南京大学医学院附属鼓楼医院宁夏医科大学总医院深圳市人民医院河北医科大学第二医院山西医科大学第二医院厦门大学附属第一医院福建省泉州市第一医院深圳市儿童医院山东大学齐鲁儿童医院南昌大学第一附属医院安徽医科大学第四附属医院上海市浦东新区人民医院浙江省宁波市镇海龙赛医院湖北省秭归县人民医院福建省晋江市医院甘肃省金昌市中西医结合医院江西省赣县区人民医院山东省广饶县人民医院河南省辉县市人民医院辽宁省营口市经济技术开发区中心医院青海省互助县人民医院四川省邻水县人民医院吉林省九台区人民医院

目的了解2015—2021年CHINET中国细菌耐药监测网成员单位临床分离枸橼酸杆菌属的分布特点及其耐药性变迁情况。方法按照CHINET统一技术方案,采用纸片扩散法或自动化仪器法进行药敏试验,按CLSI 2021年版标准判读药敏结果,采用WHONET 5.6... 详细信息

目的了解2015—2021年CHINET中国细菌耐药监测网成员单位临床分离枸橼酸杆菌属的分布特点及其耐药性变迁情况。方法按照CHINET统一技术方案,采用纸片扩散法或自动化仪器法进行药敏试验,按CLSI 2021年版标准判读药敏结果,采用WHONET 5.6软件进行数据分析。结果2015—2021年共分离出枸橼酸杆菌属细菌12855株,其中弗劳地枸橼酸杆菌7925株,占61.65%,克氏枸橼酸杆菌2589株,占20.14%。7年间枸橼酸杆菌属细菌在全部细菌和肠杆菌目细菌中的检出占比呈上升趋势,2015年分别占0.76%和1.76%,2021年分别占0.94%和2.09%。科室来源主要为外科病房(32.33%±5.42%),其次为内科病房(26.92%±3.70%)。标本来源主要分离自尿液(34.15%±1.01%)及呼吸道(22.23%±2.09%)。2015—2021年枸橼酸杆菌属对氨苄西林耐药率有所升高,对其他抗菌药物耐药率均呈下降趋势;对亚胺培南和美罗培南耐药率分别从9.5%和8.3%下降到5.5%和5.8%,对环丙沙星、替加环素以及多黏菌素耐药率波动幅度较小;在所有枸橼酸杆菌属细菌中,弗劳地枸橼酸杆菌对各类抗菌药物耐药率最高。结论枸橼酸杆菌对多数临床常用抗菌药物耐药率呈下降趋势,应继续加强抗菌药物合理应用管理及细菌耐药监测,以遏制细菌耐药率回升。

关键词：细菌耐药性监测枸橼酸杆菌属细菌抗菌药物