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中国鳍虾虎鱼属(鲈形目:虾虎鱼科)一新纪录种

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广东海洋大学学报 2018年第2期38卷 1-6页

作者：黄承勤廖健张顺龙水生王中铎郭昱嵩广东海洋大学水产学院//南海水产经济动物增养殖广东普通高校重点实验室广东湛江524088

【目的】描述分布在广东省雷州半岛鳍虾虎鱼属的一中国新纪录种湖栖鳍虾虎鱼(Gobiopterus lacustris)。【方法】用体视显微镜对样品进行拍照,用cell Sens Standard软件测量样本各形态学测量指标;依据线粒体Cytb基因以邻接法构建鳍虾虎... 详细信息

【目的】描述分布在广东省雷州半岛鳍虾虎鱼属的一中国新纪录种湖栖鳍虾虎鱼(Gobiopterus lacustris)。【方法】用体视显微镜对样品进行拍照,用cell Sens Standard软件测量样本各形态学测量指标;依据线粒体Cytb基因以邻接法构建鳍虾虎鱼属系统发育树。【结果】该虾虎鱼半透明、无色或淡黄色等体色特征与大鳞鳍虾虎鱼(***)最为相似,与后者明显区别的特征为:从第2背鳍和臀鳍起点处的鳞片向前凸出,呈"<"状(vs.第1排纵列鳞排列整齐,呈"\");雄鱼上颌具犬齿9对,下颌后半部有小犬齿8对(vs.雄鱼上颌具犬齿11对,下颌后半部有小犬齿9对);纵列鳞19~21(vs.17~19),横列鳞5(vs.5~6);胸鳍条13(vs.14),尾鳍主鳍条13(vs.14);鳍上有斑点(vs各鳍均无斑纹)。鳍虾虎鱼属4个物种间的系统发育树表明,新纪录种与湄公河鳍虾虎鱼(***)亲缘关系最近,与半饰鳍虾虎鱼(***)亲缘关系最远。【结论】雷州半岛分布的鳍虾虎鱼的形态参数及Cytb分子结果均显示其为中国新纪录种。

关键词：湖栖鳍虾虎鱼新纪录雷州半岛 Cytb基因

Variation of carbon partitioning in newly expanded maize leaves and plant adaptive growth under extended darkness

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Journal of Integrative Agriculture 2021年第9期20卷 2360-2371页

作者： LIANG Xiao-gui SHEN Si GAO Zhen zhang Li ZHAO Xue ZHOU shun-li College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193P.R.China School of Agricultural Sciences Jiangxi Agricultural UniversityNanchang 330045P.R.China Scientific Observation and Experimental Station of Crop High Efficient Use of Water in Wuqiao Ministry of Agriculture and Rural AffairsWuqiao 061802P.R.China Innovation Center of Agricultural Technology for Lowland Plain of Hebei Wuqiao 061802P.R.China

Plants must maintain a balance between their carbon(C)supply and utilization during the day–night cycle for continuous growth since C starvation often causes irreversible damage to crop *** is not well known how C fixation and allocation in the leaves of crops such as maize adapt to sudden environmental ***,to quantify primary C fixation and partitioning in photosynthetic maize leaves under extended darkness and to relate these factors to plant growth,maize seedlings were subjected to extended darkness(ED)for three successive days at the 6 th leaf fully expanded stage(V6).ED reduced plant growth and leaf chlorophyll levels but not the rate of net CO_2 *** a result of the reduction in photoassimilates,the accumulation of starch and total soluble carbohydrates(TSC)in mature leaves also decreased under ***,the percentage of the daily C fixation reserved in mature leaves *** transient C pools were largely composed of TSC and were mainly used for consumption by increased nocturnal respiration rather than for *** the days went on,both the amount of C accumulated and the percentage of the daily fixed C that was reserved in leaves decreased,which could be largely accounted for by the attenuated starch synthesis in all *** activities of ADPglucose pyrophosphorylase and soluble starch synthase decreased significantly over ***,this study concluded that both starch and TSC are involved in the coordination of the C supply and plant growth under a sudden C shortage but that they may be involved in different *** the ratio of reserved C to daily fixed C increased to maintain blade function under acute C starvation,both the amount and the proportion of C reserved in mature leaves decreased as plant growth continued in order to meet the growth demands of the plant.

关键词： maize starch total soluble carbohydrates carbon allocation extended darkness ongoing growth

Silazyl-Lithiums: A kind of new Initiators for the Anionic Non- equilibrium Ring-opening Polymerization of Octamethylcyclotetrasiloxane (D_4)

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Chinese Chemical Letters 2002年第12期13卷 1174-1177页

作者： shun Xing SU Zhi Jie zhang Zhi Min ZHENG Ze Min XIE State Key Laboratory of Engineering Plastics Center for Molecular ScienceInstitute of Chemistrythe Chinese Academy of SciencesBeijing 100080

The initiation reactions in the anionic non-equilibrium polymerization of octamethy- lcyclotetrasiloxane (D4) initiated by silazyllithiums were investigated. It was found that the structure of the substituents on the... 详细信息

关键词： Anionic non-equilibrium polymerization polysiloxane silazyl-lithiums.

阿魏酸钠对大鼠胸主动脉的非内皮依赖性血管舒张作用

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中国现代医生 2012年第25期50卷 21-22,24页

作者：何志鹏吴琪章顺安唐延甜胡泽史佩剑宁波市北仑区人民医院心内科浙江宁波315800

目的研究阿魏酸钠对离体大鼠胸主动脉的影响。方法以等长张力的形式记录鼠主动脉及去内皮鼠主动脉对去氧肾上腺素和高钾的反应,以及阿魏酸钠对鼠主动脉及去内皮鼠主动脉的舒张作用。结果阿魏酸钠(0.1～30 mmol/L)能使预先用浓度为(2.73... 详细信息

目的研究阿魏酸钠对离体大鼠胸主动脉的影响。方法以等长张力的形式记录鼠主动脉及去内皮鼠主动脉对去氧肾上腺素和高钾的反应,以及阿魏酸钠对鼠主动脉及去内皮鼠主动脉的舒张作用。结果阿魏酸钠(0.1～30 mmol/L)能使预先用浓度为(2.73±0.02)的去氧肾上腺素和浓度为(2.57±0.06)的高钾预收缩的离体主动脉环舒张(P<0.05);机械去除内皮后,阿魏酸钠对主动脉环的舒张效应没有明显改变。结论阿魏酸钠是一种非内皮依赖性的血管平滑肌细胞松弛剂。

关键词：阿魏酸钠主动脉血管舒张

胰腺癌组织中COX-2、VEGF-C表达和淋巴管密度

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中华胰腺病杂志 2008年第2期8卷 108-110页

作者：孙学国赵清喜田字彬张翠萍张顺李玉军孔心涓青岛大学医学院山东266003

目的检测胰腺癌及癌旁组织中COX-2、VEGF—C的表达与淋巴管密度（LVD），探讨它们之间的关系。方法应用组织芯片技术和免疫组化方法检测40例胰腺癌及相应癌旁组织和12例远处正常胰腺组织中COX-2、VEGF-C的表达及LVD，分析它们之间的关... 详细信息

目的检测胰腺癌及癌旁组织中COX-2、VEGF—C的表达与淋巴管密度（LVD），探讨它们之间的关系。方法应用组织芯片技术和免疫组化方法检测40例胰腺癌及相应癌旁组织和12例远处正常胰腺组织中COX-2、VEGF-C的表达及LVD，分析它们之间的关系，以及与临床病理指标的关系。结果胰腺癌组织COX－2、VEGF—C表达阳性率分别为70．0％（28／40）和67．5％（27／40），显著高于癌旁组织的42．5％（17／40）和35．0％（14／40，P〈0．01），也显著高于正常胰腺的8．3％（1／12）和25．0％（3／12）。癌、癌旁及正常胰腺的LVD分别为4．75±2．77、15．20±4．70和1．67±1．15，以癌旁组织最高（P〈0．01）。癌组织COX．2表达与肿瘤分化程度、淋巴结转移相关；VEGF．C的表达与淋巴结转移相关。癌旁组织LVD与肿瘤分化程度、淋巴结转移有关，并与癌组织COX-2、VEGF-C表达存在一定相关性。结论胰腺癌新生淋巴管主要存在于癌旁，淋巴管的形成可能有COX-2及VEGF—C的参与。

关键词：胰腺肿瘤环氧化酶-2 血管内皮生长因子C 血管内皮生长因子受体3 淋巴管生成淋巴管密度

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怀化秤锤树群落结构特征分析

湖南林业科技 2024年第2期51卷 70-75页

作者：季鑫佘海平陈良芳周芳芝袁春张凌宏路瑜王晓玲张顺谌静芳怀化市林业科学研究所湖南怀化418000 怀化市鹤城区林业局湖南怀化418000

以怀化秤锤树野生群落为研究对象,采用样方调查的方法,调查和分析该群落中乔木层、灌木层、草本层的物种组成,以及群落结构和植物分布区类型。结果表明:该群落中共有植物37科51属56种,其中乔木层有植物6科6属6种,灌木层有植物18科24属27... 详细信息

以怀化秤锤树野生群落为研究对象,采用样方调查的方法,调查和分析该群落中乔木层、灌木层、草本层的物种组成,以及群落结构和植物分布区类型。结果表明:该群落中共有植物37科51属56种,其中乔木层有植物6科6属6种,灌木层有植物18科24属27种,草本层有植物19科21属23种。从重要值上看,该群落乔木层中刨花润楠、怀化秤锤树、枫香树和灌木层中中南鱼藤、威灵仙、臭牡丹以及草本层中夏天无、石蒜、野菊等的重要值较大。从植物分布区类型上看,该群落中的种子植物以世界广布和泛热带(热带广布)的属为主。怀化秤锤树种群规模小、分布范围狭窄,自然更新较为困难,建议加强对怀化秤锤树的保护力度。

关键词：怀化秤锤树物种组成群落结构分布区类型

The effect of Ti and Zr content on the structure,mechanics and energy-release characteristics of Ti—Zr—Ta alloys

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Defence Technology（防务技术） 2024年第1期31卷 343-350页

作者： Jia-yu Meng Jing-zhi He Bin zhang Jin Chen shun Li Dun Niu Yu Tang Xi’an Modern Chemistry Research Institute Xi'an710065China College of Aerospace Science and Engineering National University of Defense TechnologyChangsha410073China

Energetic structural materials(ESMs)are a new type of structural materials with bearing and damage *** this work the microstructure,mechanical properties and energy release characteristics of multi-element Ti-Zr-Ta alloys with good casting performance were *** microstructure of the Ti_(x)ZrTa alloys gradually change from BCC+HCP to single BCC structure with the increase of *** the Ti_(2)Zr_(y)Ta alloys was still uniform and single BCC structure with the increase of *** evolution of microstructure and composition then greatly affect the mechanical properties and energy-release characteristics of Ti-Zr-Ta *** synergistic effect of dual phase structure increases the fracture strain of Ti_(x)ZrTa(x=0.2,0.5)with the Ti content decreases,while the fracture strain of Ti_(x)ZrTa(x=2.0,3.0,4.0)gradually increase with the Ti content increases caused by the annihilation of the obstacles for dislocation *** as Zr content increases,the fracture strain of Ti_(2)Zr_(y)Ta alloys decrease,then the oxidation reaction rate and fragmentation degree gradually *** higher oxidation rate and the lager exposed oxidation area jointly leads the higher releasing energy efficiency of Ti_(x)ZrTa alloys with low Ti content and Ti_(2)Zr_(y)Ta alloys with high Zr content.

关键词： Energetic structural materials Ti-Zr-Ta Multi-element alloy Energy release characteristics

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住院精神分裂症患者疗效的影响因素对照研究

实用预防医学 2006年第4期13卷 868-870页

作者：邱友胜张春玲张文顺秦性好方亚明高欢广东深圳市康宁医院广东深圳518020

目的探讨住院精神分裂症患者疗效的影响因素。方法将203例精神分裂症患者按临床疗效分组,临床痊愈和显著好转者132例为显效组,临床好转和无效者71例为对照组,采用自编《住院精神分裂症患者一般情况调查表》进行回顾性统计、分析。结果... 详细信息

目的探讨住院精神分裂症患者疗效的影响因素。方法将203例精神分裂症患者按临床疗效分组,临床痊愈和显著好转者132例为显效组,临床好转和无效者71例为对照组,采用自编《住院精神分裂症患者一般情况调查表》进行回顾性统计、分析。结果住院患者中女性、低技术工人、阴性症状突出者、病前无诱因的疗效较差(P<0.05)。其疗效与住院天数、总住院费用成正相关,与日均费用成负相关(P<0.01)。结论精神分裂症药物治疗应充分、足程,临床应重视对女性、低技术工人的治疗观察,并加强精神疾病知识健康教育,同时健全社会保障体系以提高住院精神分裂症患者的疗效。

关键词：精神分裂症临床疗效对照研究

Wolbachia enhances expression of NICYP4CE1 in Nilaparvata lugens in response to imidacloprid stress

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Insect Science 2021年第2期28卷 355-362页

作者： Tingwei Cai Yunhua zhang Yu Liu Xiaoqian Deng shun He Jianhong Li Hu Wan Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhanChina

The brown planthopper,Nilaparvata lugens,is one of the main insect pests of *** *** gene NICYP4CE1 encodes cytochrome P450 monooxygenase(P450),which is a key enzyme in the metabolism of the insecticide *** research has suggested that the expression of NICYP4CEI is induced by imidacloprid stress,but the effect of bacterial symbionts on its expression has not been *** results of this study show that exposure to subtoxic imidacloprid changed the structure of the bacterial symbiont community in ***,the total bacterial content increased but the bacterial species diversity significantly *** accounted for the largest proportion of bacteria in ***;its abundance significantly increased after subtoxic imidacloprid *** transcript level of NICYP4CEI was significantly increased by imidacloprid,but this effect was significantly weakened after Wolbachia was cleared with *** result suggests that Wolbachia enhances the expression of N1CYP4CE1 to promote the detoxification metabolic response to imidacloprid *** the effect of bacterial symbionts on gene expression in the host provides a new perspective on interactions between insecticides and their target insect pests,and highlights that subtoxic imidacloprid exposure may raise the risk of insecticide resistance by altering the structure of bacterial symbiont communities.

关键词： host-microbe interaction imidacloprid NICYP4CE1 P450 Wolbachia