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Population genetic variation and historical dynamics of the natural enemy insect Propylea japonica(Coleoptera: Coccinellidae) in China

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Journal of Integrative Agriculture 2023年第8期22卷 2456-2469页

作者： WANG Meng-qi ZHAGN Hong-rui xi Yu-qiang WANG Gao-ping ZHAO Man ZHANG Li-juan GUO xian-ru Department of Entomology College of Plant ProtectionHenan Agricultural UniversityZhengzhou 450002P.R.China College of Plant Protection Yunnan Agricultural UniversityKunming 650201P.R.China Suifenhe Bureau of Agriculture and Rural Affairs Suifenhe 157300P.R.China Henan International Laboratory for Green Pest Control/College of Plant Protection Henan Agricultural UniversityZhengzhou 450002P.R.China

Propylea japonica(Coleoptera:Coccinellidae)is a natural enemy insect with a wide range of predation in Chinese mainland and is commonly used in pest ***,its genetic pattern(i.e.,genetic variation,genetic structure,and historical population dynamics)is still unclear,impeding the development of biological control of insect *** genetic research has the potential to optimize strategies at different stages of the biological control *** study used 23 nuclear microsatellite sites and mitochondrial COI genes to investigate the population genetics of Propylea japonica based on 462 specimens collected from 30 sampling sites in *** microsatellite dataset showed a moderate level of genetic diversity,but the mitochondrial genes showed a high level of genetic *** from the Yellow River basin were more genetically diverse than those in the Yangtze River *** japonica has not yet formed a significant genealogical structure in China,but there was a population structure signal to some extent,which may be caused by frequent gene flow between *** species has experienced population expansion after a bottleneck,potentially thanks to the tri-trophic plant–insect–natural enemy *** of population genetics is of importance in using predators to control *** study complements existing knowledge of an important natural predator in agroecosystems through estimating its genetic diversity and population differentiation and speculating about historical dynamics.

关键词： demographic history genetic differentiation genetic diversity population expansion microsatellite mitochondrial Col

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旅游地形象感知偏差测评模型研究

旅游学刊 2009年第1期24卷 29-32页

作者：姚长宏陈田刘家明首都师范大学资源环境与旅游学院北京100048 中国科学院地理科学与资源研究所北京100101

旅游地形象是旅游地开发建设的重要内容之一,形象塑造是提高其市场影响力和市场竞争力的重要基础;因缺乏全真信息支撑,市场对旅游地形象的感知普遍存在偏差。本文根据形象主体及感知内容系统构建感知偏差测评层次模型,包含3个层次9个指... 详细信息

旅游地形象是旅游地开发建设的重要内容之一,形象塑造是提高其市场影响力和市场竞争力的重要基础;因缺乏全真信息支撑,市场对旅游地形象的感知普遍存在偏差。本文根据形象主体及感知内容系统构建感知偏差测评层次模型,包含3个层次9个指标,其中模型权重由专家打分确定,基础数据源于市场调查结果,主要采用离差和法分析不同主体对不同感知内容的偏差程度。通过十堰旅游目的地验证,最终偏差指数测评结果为0.626,偏差较大,其中主体对自然环境感知偏差最小,对社会环境感知偏差最大;旅游介体对十堰形象感知偏差最小,本地居民感知偏差最大。

关键词：旅游目的地旅游形象感知偏差层次分析法

利用近红外光谱技术快速测定白鲢鱼糜中的水分含量

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食品工业科技 2008年第2期29卷 282-284页

作者：黄艳王锡昌邓德文上海水产大学食品学院上海200090 瑞士步琪有限公司上海办事处上海200030

利用近红外光谱技术测定白鲢鱼糜中的水分含量。光谱通过标准正态变量转换法的处理后经过偏最小二乘法建立模型,并且以定标集预测误差、验证集预测误差及其相关系数作为评判模型好坏。结果发现,定标集预测误差和验证集预测误差分别为0.... 详细信息

利用近红外光谱技术测定白鲢鱼糜中的水分含量。光谱通过标准正态变量转换法的处理后经过偏最小二乘法建立模型,并且以定标集预测误差、验证集预测误差及其相关系数作为评判模型好坏。结果发现,定标集预测误差和验证集预测误差分别为0.392和0.485,定标集和验证集的相关系数都高于0.98。研究发现,近红外光谱技术能快速测定鱼糜中水分含量,且用于实际生产中水分的控制是可行的。

关键词：鱼糜近红外光谱水分

In-beam gamma rays of CSNS Back-n characterized by black resonance filter

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Nuclear Science and Techniques 2024年第10期35卷 149-160页

作者： Jin-Cheng Wang Jie Ren Wei jiang xi-Chao Ruan Ying-Yi Liu Hao-Lan Yang Kuo-Zhi Xu xin-Yi Pan Qi Sun Jie Bao Han-xiong Huang Hao-Fan Bai jiang-Bo Bai Ping Cao Qi-Ping Chen Yong-Hao Chen Wen-Hao Duan An-Chuan Fan Rui-Rui Fan chang-Qing Feng Min-Hao Gu chang-Cai Han Zi-Jie Han Guo-Zhu He Yong-Cheng He Yang Hong Yi-Wei Hu Zhi-Jie jiang Ling Kang chang-Lin Lan Bo Li Feng Li Qiang Li xiao Li Yang Li Jie Liu Rong Liu Shu-Bin Liu Yi-Na Liu Guang-Yuan Luan chang-Jun Ning Yi-jia Qiu Wen-Kai Ren Zhi-Zhou Ren Zhao-Hui Song Kang Sun Zhi-xin Tan Jing-Yu Tang Sheng-Da Tang Li-jiao Wang Peng-Cheng Wang Zhao-Hui Wang Zhong-Wei Wen xiao-Guang Wu Xuan Wu Ze-Peng Wu Cong xia Li-Kun xie Han Yi Tao Yu Yong-Ji Yu Guo-Hui Zhang Hang-chang Zhang Qi-Wei Zhang xian-Peng Zhang Yu-Liang Zhang Zhi-Yong Zhang Mao-Yuan Zhao Zhi-Hao Zhou Ke-Jun Zhu Chong Zou Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Institute of Modern Physics Fudan UniversityShanghai 200433China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230026China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China USTC Archaeometry Lab University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Northwest Institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China Institute of Advanced Technology University of Science and Technology of ChinaHefei 230027China

The back-streaming white-neutron beamline(Back-n)of the China Spallation Neutron Source is an essential neutronresearch platform built for the study of nuclear data,neutron physics,and neutron *** types of cross-sectional neutron-reaction measurements have been performed at Back-n since early *** measurements have shown that a significant number of gamma rays can be transmitted to the experimental stations of Back-n along with the neutron *** gamma rays,commonly referred to as in-beam gamma rays,can induce a non-negligible experimental background in neutron-reaction *** the characteristics of in-beam gamma rays is important for understanding the experimental ***,measuring in-beam gamma rays is challenging because most gamma-ray detectors are sensitive to neutrons;thus,discriminating between neutron-induced signals and those from in-beam gamma rays is *** this study,we propose the use of the black resonance filter method and a CeBr_(3) scintillation detector to measure the characteristics of the in-beam gamma rays of *** types of black resonance filters,^(181)Ta,^(59)Co,^(nat)Ag,and^(nat)Cd,were used in this *** time-of-flight(TOF)technique was used to select the detector signals remaining in the absorption region of the TOF spectra,which were mainly induced by in-beam gamma *** energy distribution and flux of the in-beam gamma rays of Back-n were determined by analyzing the deposited energy spectra of the CeBr_(3) scintillation detector and using Monte Carlo *** on the results of this study,the background contributions from in-beam gamma rays in neutron-reaction measurements at Back-n can be reasonably evaluated,which is beneficial for enhancing both the experimental methodology and data analysis.

关键词： In-beam gamma rays Back-n CeBr_(3)scintillator Black filter resonance technique

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北京市社会福利机构护士职业倦怠调查

中国心理卫生杂志 2009年第2期23卷 150-151页

作者：苏英彭嘉琳郑日昌北京大学医学部医学心理教研室北京100083 北京师范大学心理学院北京100875 北京市社会福利管理处北京100029

护士的心理健康状况直接关系到医疗卫生服务的质量。护士一旦出现职业倦怠,就会对自身、团体、服务对象产生明显影响。本文调查北京市福利院护士的职业倦怠现状。[第一段]

关键词：职业倦怠社会福利护士横断面调查

基于水声学探测的两个广东鲂产卵群体繁殖生态的差异性

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生态学报 2009年第4期29卷 1756-1762页

作者：谭细畅李新辉林建志周东华高翔李嘉敏中国水产科学研究院珠江水产研究所广州510380 广东省渔政总队肇庆支队肇庆526000

2006年4～5月利用SimradEY60型分束回声探测仪对珠江西江江段罗旁及青皮塘广东鲂产卵场中的繁殖群体进行水声学探测。在人工标定及渔获物统计的基础上,对广东鲂的回声信号进行了判别。结果表明:广东鲂在两个产卵场都有明显的聚群行为,... 详细信息

2006年4～5月利用SimradEY60型分束回声探测仪对珠江西江江段罗旁及青皮塘广东鲂产卵场中的繁殖群体进行水声学探测。在人工标定及渔获物统计的基础上,对广东鲂的回声信号进行了判别。结果表明:广东鲂在两个产卵场都有明显的聚群行为,但在罗旁产卵场的聚群规模明显比青皮塘产卵场的大,频次更多。两个产卵场中广东鲂的繁殖生态行为存在明显差异,在青皮塘江段洄游的速度(均值0.24m/s)也低于罗旁的(均值0.61m/s);另外,在两个产卵场广东鲂的数量动态变化上存在差异。产卵场生境的差异性是导致广东鲂繁殖生态行为差异的主要原因,维护产卵场生境特征对保护广东鲂种群具重要意义。

关键词：广东鲂产卵群体繁殖生态水声学探测

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论戴维·洛奇天主教小说反讽叙事的悖逆形态

临沂大学学报 2017年第1期39卷 73-83页

作者：孙希佳南京理工大学外国语学院江苏南京210094 解放军国际关系学院二系江苏南京210000

在戴维·洛奇的天主教小说中,反讽叙事的悖逆形态有四种表现形式:言语反讽、文体反讽、戏仿和互文性。作者借用此种方式再现了后现代英国社会由信仰危机引发的个体焦虑,凸显了洛奇对宗教问题的反思和批判,表达了作者在文本中建构融合了... 详细信息

在戴维·洛奇的天主教小说中,反讽叙事的悖逆形态有四种表现形式:言语反讽、文体反讽、戏仿和互文性。作者借用此种方式再现了后现代英国社会由信仰危机引发的个体焦虑,凸显了洛奇对宗教问题的反思和批判,表达了作者在文本中建构融合了世俗人文主义思想宗教观的尝试。

关键词：反讽叙事悖逆戴维·洛奇天主教小说

Intravitreal Aflibercept for Macular Edema Secondary to Branch Retinal Vein Occlusion in Chinese Patients

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Eye Science 2015年第2期30卷 63-66,69页

作者： jia-Kang Wang Tzu-Lun Huang Pei-Yuan Su Pei-Yao chang Ying-Yu Tseng Department of Ophthalmology Far Eastern Memorial Hospital Department of Medicine National Yang Ming University Department of Healthcare Administration and Department of Nursing Oriental Institute of Technology Department of Medicine National Taiwan University Institute of Medical Sciences Tzu Chi University Department of Medicine Fu Jen Catholic University Department of Medicine China Medical UniversityTaichung City Taiwan China

Purpose: To investigate the short-term efficacy and safety of intravitreal aflibercept in a case series of patients from Taiwan, China, with macular edema secondary to branch retinal vein occlusion(BRVO).Methods: A total of 32 patients with macular edema associated with BRVO,.without prior macular laser or other intervention, were enrolled consecutively from September 2013 to February 2015..The cases received single 2 mg injections of intravitreal aflibercept..Primary outcome measures included changes in central foveal thickness.(CFT;.1 mm increments by spectral-domain optic coherence tomography).and best corrected visual acuity.(BCVA),.determined at 1,.2,.and 3months after the injection. Complications after injections were recorded. The changes in CFT and BCVA were compared with Wilcoxon sign-rank ***:.The CFT was significantly reduced and the BCVA was significantly improved at 1, 2, and 3 months after injection(all P < 0.05). Tomography findings revealed no recurrence within 3 months. No systemic thromboembolic events,elevated intraocular pressure, retinal detachment, or infectious endophthalmitis occurred following ***:.Single intravitreal aflibercept may be useful in treating macular edema associated with BRVO within 3months. No adverse systemic or ocular effects were found in this case series.

关键词：注射治疗玻璃体视网膜黄斑水肿阻塞患者静脉

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图形处理器上内存数据库索引T-树的研究

华南理工大学学报（自然科学版） 2013年第3期41卷 22-28页

作者：刘勇奚建清黄东平贾连印苗德成华南理工大学计算机科学与工程学院广东广州510006

为进一步提高内存数据库索引结构T-树的操作性能,提出一种基于图形处理器的T-树无锁并行计算方案.该方案通过分析平衡树结构的父子节点间的关系,在图形处理器平台上实现使用m个线程并行创建具有m个节点的T-树索引,从而以最大并行度的方... 详细信息

为进一步提高内存数据库索引结构T-树的操作性能,提出一种基于图形处理器的T-树无锁并行计算方案.该方案通过分析平衡树结构的父子节点间的关系,在图形处理器平台上实现使用m个线程并行创建具有m个节点的T-树索引,从而以最大并行度的方式构建T-树.为验证方案的正确性,提出以堆栈的方式在图形处理器上遍历T-树的算法,对各平台上构建T-树的方案进行性能分析,并通过页锁定内存的方式提高CPU和GPU间的数据传输速率.通过对多个处理器平台上的实验结果的对比发现,提出的方案在并行构建T-树和T-树的批量节点插入上相比于传统CPU平台方案分别获得12倍和8倍以上的加速比.

关键词：图形处理器 T-树内存数据库索引结构并行构建批量节点插入