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Time development of surface enhanced Raman intensities of the adsorbed pyrazine molecules on the silver electrode as the applied voltage varies
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作者 WU,Guo-Zhen HUANG,Yi Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080 《Chinese Journal of Chemistry》 SCIE CAS CSCD 1993年第5期395-400,共8页
In this work,the time development of surface enhanced Raman intensities of the vibrational modes involving the ring skeleton and the C—H motions of the pyrazine molecule as the applied voltage on the silver electrode... In this work,the time development of surface enhanced Raman intensities of the vibrational modes involving the ring skeleton and the C—H motions of the pyrazine molecule as the applied voltage on the silver electrode is shifted between -0.2 V and -0.5 V (vs.saturated calomel electrode)is reported.The observation shows that there are two processes of enhancement involved during this shift of applied voltage.One is vibrational mode dependent while the other is not.The detailed behavior of these two processes of enhancement is discussed along with the retarded response of the Helmholtz double layer structure to the change of the applied voltage on the electrode. 展开更多
关键词 time development of surface enhanced Raman intensities of the adsorbed pyrazine molecules on the silver electrode as the applied voltage varies SERS
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Is it time to rethink the Alzheimer's disease drug development strategy by targeting its silent phase?
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作者 Benoit Souchet Mickael Audrain +3 位作者 Baptiste Billoir Laurent Lecanu Satoru Tada Jérome Braudeau 《Neural Regeneration Research》 SCIE CAS CSCD 2018年第2期224-225,共2页
Alzheimer's disease (AD) is the most frequent cause of dementia in the western world. In clinical terms, AD is characterized by progres- sive cognitive decline that usually begins with memory impairment. As the dis... Alzheimer's disease (AD) is the most frequent cause of dementia in the western world. In clinical terms, AD is characterized by progres- sive cognitive decline that usually begins with memory impairment. As the disease progresses, AD inevitably affects all intellectual functions including executive functions, leading to complete dependence for basic activities of daily life and premature death. 展开更多
关键词 AD Is it time to rethink the Alzheimer’s disease drug development strategy by targeting its silent phase
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The Development of Arbitration Cause Should be Marched Forward With Times
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作者 YU Xiao song 《China's Foreign Trade》 2001年第12期4-4,共1页
It’s a golden season of harvest during which it was a fine autumn weather with the pale clouds and a light breeze blowing in September in Beijing. The China International Economic and Trade Arbitration Commission and... It’s a golden season of harvest during which it was a fine autumn weather with the pale clouds and a light breeze blowing in September in Beijing. The China International Economic and Trade Arbitration Commission and China Maritime Arbitration Commission held a forum of arbitrators on 26 to 28 September 2001s dealing with arbitrate work in a beautiful landscape place, Kuan Gou, a suburb in Beijing. Mr. Yu Xiaosong, the Chair- man of China Council for Promotion of International Trade/China Chamber of International Commerce, China Intemational Economic and Trade Arbitration Commission and China Maritime Arbitration Commission, gave a talk at the forum stressed that the development of arbitration cause in China should be marched with ticccccccccmes and adapted to the fast development in the situations both of home and abroad. Mr. Yu Xaosong’s talk put forward a kind of principles for the development of the arbitration cause in China, a part of which, we publish part of it here as a reference for the arbitrate circle colleagues. 展开更多
关键词 The development of Arbitration Cause Should be Marched Forward With times more WTO APEC
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Time-Frequency and Nonlinear Analysis of Tidal Data Observed on the Kuroshio Path
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作者 Kenta Kirimoto 《International Journal of Modern Nonlinear Theory and Application》 2016年第4期147-159,共13页
The tidal data of Kushimoto and Uragami on flow path of Kuroshio from 2004 to 2005 are investigated and discussed by time-frequency methods and nonlinear methods in this paper. These analyzing methods based on mathema... The tidal data of Kushimoto and Uragami on flow path of Kuroshio from 2004 to 2005 are investigated and discussed by time-frequency methods and nonlinear methods in this paper. These analyzing methods based on mathematical science show us new findings about the tidal motion observed on Kuroshio flow path. On the time-frequency analysis, 12 hours component and 24 hours component swing during the period of 350 hours and 320 hours respectively. However, any remarkable differences or changes depending on Kuroshio flow path weren’t seen on the result of time-frequency analysis. On the nonlinear analysis, a periodical structure has seen on the mutual information of tidal difference data, while Kuroshio flow is stable. In addition, the mutual information showed a characteristic of randomness and irregularity, while Kuroshio flow is unstable. The important results brought us a new finding such as classification of tidal motion regardless of the flow path of Kuroshio. 展开更多
关键词 Wavelet Transform Lorenz’s Plot Mutual Information time development PERIODICITY IRREGULARITY Classification
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基于时序InSAR技术的中贵天然气管道天水市段沿线滑坡隐患识别与形变分析 被引量:2
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作者 方迎潮 王小松 +5 位作者 蒋毅 顿佳伟 冯文凯 刘威 丁治文 张洋铭 《科学技术与工程》 北大核心 2024年第4期1357-1369,共13页
中贵天然气管道天水市段沿线地处黄土高原,地貌类型多样、构造活跃、复杂地质条件下发育多种具有隐蔽性和潜伏性的地质灾害,其中滑坡灾害对中贵天然气管道的安全危害极大,因此,对中贵天然气管道天水段沿线滑坡隐患进行有效识别与分析具... 中贵天然气管道天水市段沿线地处黄土高原,地貌类型多样、构造活跃、复杂地质条件下发育多种具有隐蔽性和潜伏性的地质灾害,其中滑坡灾害对中贵天然气管道的安全危害极大,因此,对中贵天然气管道天水段沿线滑坡隐患进行有效识别与分析具有重要意义。采用Sentinel-1A升降轨卫星数据,基于时序合成孔径雷达干涉测量(synthetic aperture radar interferometry,InSAR)对中贵天然气天水段沿线滑坡隐患进行了解译识别、现场复核、发育特征与典型滑坡形变分析。研究区共识别17处滑坡隐患点,现场复核最终确定13处,其余4处为人类工程活动区,其中常沟村和磨峪沟村滑坡形变受降雨影响。统计发现研究区管道沿线滑坡多发生在坡度40°~50°,高差400~600 m,东北坡向和距管道100~150 m范围内,且岩土体强度较低,地层以第四系全新统冲洪积层(Q_(4)^(a1+p1))为主。结果表明:联合升降轨的时序InSAR技术可以有效识别管道沿线滑坡隐患,为油气管线的安全运营及今后油气管道选线提供重要的科学依据和参考。 展开更多
关键词 中贵天然气管道天水市段 时序合成孔径雷达干涉测量(InSAR) 滑坡隐患识别 发育特征
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父母应对社会化如何影响儿童青少年适应:基于长时与实时时间轴的视角
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作者 何婷 胡惠南 +3 位作者 乔璐 杨靓靓 李明英 蔺秀云 《心理科学进展》 CSCD 北大核心 2024年第8期1342-1353,共12页
父母应对社会化是指父母向儿童青少年提供认知、情感和行为策略以应对压力的过程。实证研究从长时程发展时间轴、具体情境下的实时时间轴及不同时间轴的结合等角度探讨父母应对社会化的作用,揭示了父母应对社会化对于儿童青少年适应的... 父母应对社会化是指父母向儿童青少年提供认知、情感和行为策略以应对压力的过程。实证研究从长时程发展时间轴、具体情境下的实时时间轴及不同时间轴的结合等角度探讨父母应对社会化的作用,揭示了父母应对社会化对于儿童青少年适应的独特效应。对于其中的心理机制,应对社会化过程理论模型探讨了儿童青少年应对过程在父母应对社会化与儿童青少年适应之间的中介作用,教养×压力放大和差异效应模型考察了应对社会化作用过程的边界条件。本研究将此两种模型进行整合,并基于动态系统视角提出应对社会化动态过程理论模型,从长时程发展时间轴和具体情境下的实时时间轴两个层面、儿童个体和亲子二元两个水平完善父母应对社会化对儿童青少年适应的作用机制。未来研究可进一步考察父母应对社会化作用效果的普遍性,深化探索父母应对社会化影响儿童青少年适应的机制,为父母应对社会化在家庭教育与临床干预领域的应用与推广提供科学依据。 展开更多
关键词 父母应对社会化 儿童青少年适应 应对社会化动态过程理论模型 长时程发展时间轴 具体情境 下实时时间轴
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应用time-lapse技术探讨7~10细胞D3优质胚胎的发育潜能 被引量:2
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作者 张京业 刘辉 +3 位作者 李梅 王苗苗 陶文荣 吴克良 《现代妇产科进展》 CSCD 北大核心 2016年第11期825-829,共5页
目的:探讨人体外受精-胚胎移植(IVF-ET)中第3天细胞数目为7、8、9、10优质胚胎的发育潜能。方法:选取2014年11月至2015年10月于山东大学附属生殖医院行IVF-ET患者的D3(授精后第三天)胚胎,利用time-lapse(延时摄像)技术分析7~10... 目的:探讨人体外受精-胚胎移植(IVF-ET)中第3天细胞数目为7、8、9、10优质胚胎的发育潜能。方法:选取2014年11月至2015年10月于山东大学附属生殖医院行IVF-ET患者的D3(授精后第三天)胚胎,利用time-lapse(延时摄像)技术分析7~10细胞优质胚胎的早期分裂行为,进而探讨胚胎早期分裂行为对囊胚形成率和临床结局的影响。结果:(1)四种细胞数胚胎早期的分裂行为不同:大多数8细胞胚胎为发育正常(NB)的胚胎;9细胞和10细胞中发生直接分裂(DC,一种异常分裂)的胚胎比例高于发育正常胚胎;所有7细胞胚胎均存在异常分裂,其中主要为逆分裂(RC,一种异常分裂)和同步分裂延迟(t8-t5,S3,胚胎由5细胞分裂为8细胞的时间)。(2)与NB相比,每一种异常分裂(DC,RC,S3)的发生均不同程度降低了胚胎的发育潜能。(3)四种细胞数胚胎的发育结局显示,8细胞胚胎有最高的囊胚形成率和胚胎着床率,其次为9细胞和10细胞胚胎,7细胞胚胎的囊胚形成率和着床率最低。结论:7、8、9、10四种细胞数胚胎早期发育过程中异常分裂的类型和所占比重不同,最终导致其发育潜能的差异。8细胞胚胎的发育潜能最高,其次为9细胞和10细胞胚胎,7细胞胚胎发育潜能最低。 展开更多
关键词 time-LAPSE 早期分裂行为 发育潜能
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A Process-Based Model for Simulating Phasic Developmentand Phenology in Rice 被引量:3
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作者 MENG Ya-li, CAO Wei-xing, ZHOU Zhi-guo and LIU Xin-wei(Nanjing Agricultural University/Key Laboratory of Crop Growth Regulation, Ministry of Agriculture, Nanjing 210095 , P.R. China) 《Agricultural Sciences in China》 CAS CSCD 2003年第11期1277-1284,共8页
A simulation model for phasic and phenological development of rice was developed using the scale of physiological development time, based on the ecophysiological development processes. The interaction of daily thermal... A simulation model for phasic and phenological development of rice was developed using the scale of physiological development time, based on the ecophysiological development processes. The interaction of daily thermal effectiveness, photoperiod effectiveness and intrinsic earliness(before heading), and basic filling duration factor(after heading)determined the daily physiological effectiveness, which accumulated to get physiological development time. The Beta and quadratic functions were used to describe daily thermal and photoperiod effectiveness, respectively. Five specific genetic parameters were added to adjust the genotypic differences in rice development so that all different varieties could reach the same physiological development time at a given development stage. The stages of seedling emergence, panicle initiation, heading, and maturity were validated using sowing dates under different ecological environments, with the RMSE of 1. 47, 5. 10, 4.58 and 3.37 days, respectively. The results showed that the model was not only explanatory and systematic but also accurate and applicable. 展开更多
关键词 RICE Phasic development PHENOLOGY Physiological development time Simulation model PREDICTION
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Abruptly developed large esotropia after full time occlusion therapy in anisometropic amblyopia
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作者 Huijae Lee Ungsoo Samuel Kim 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2012年第5期650-651,共2页
Dear Sir,I am Dr. Huijae Lee, from the Seoul Ire Eye Clinic,Seoul, Korea. I write to present a case report of esotropia after occlusion therapy.Amblyopia can be caused by
关键词 time Abruptly developed large esotropia after full time occlusion therapy in anisometropic amblyopia
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Quantitative division of succession and spatial patterns among different stand developmental stages in Changbai Mountains 被引量:1
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作者 GONG Zhi-wen KANG Xin-gang GU Li 《Journal of Mountain Science》 SCIE CSCD 2019年第9期2063-2078,共16页
Broadleaf-Korean pine forests exhibit high species richness and distinctive species composition, which are currently becoming more dominant among natural forests in Changbai Mountains of northeastern China. Understand... Broadleaf-Korean pine forests exhibit high species richness and distinctive species composition, which are currently becoming more dominant among natural forests in Changbai Mountains of northeastern China. Understanding the ecological process of restored vegetation is quite important for ecosystem reconstruction. Distinguishing stand development stages and analyzing the dynamic spatial patterns could provide insights into significant community coexistence mechanisms. In the present study, eight permanent study areas were established according to the substituting space for time method in Changbai Mountains of north-eastern China. The optimal division method was used to quantify the successional series into different stand development stages, and the point pattern analysis method(L(r) function) was used to analyse the dynamic changes in spatial patterns and interspecific associations. Our results suggested that:(1) The stand development process was divided into five stages: the first three stages were poplar-birch secondary forests in different stages of recovery, the fourth stage was thespruce-fir mixed forest, and the last stage was the primary broadleaf-Korean pine forest;(2) The spatial pattern showed an aggregated distribution at a small scale and changed to a random distribution as the scale increased in poplar-birch secondary forests, but the spatial pattern appeared to be randomly distributed in spruce-fir mixed forest and broadleafKorean pine forest;(3) The interspecific associations between pioneer species and climax species changed from negative to positive among the different stand stages, and environmental resources were shared among these species. Interspecific differences in shade tolerance among the tree species were key determinants of forest dynamics and structure. Our study is vital to the understanding of the forest development;thus, the spatial change features should receive greater attention when forest management is being planned and restoration strategies are being developed for the Changbai Mountains. 展开更多
关键词 Dynamic spatial patterns INTERSPECIFIC association Optimal DIVISION method STAND developmentAL STAGES Space for time substitution
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A pilot study, a specially designed pillow may prevent developmental plagiocephaly by reducing pressure from the infant head 被引量:1
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作者 Anna Ohman 《Health》 2013年第6期32-37,共6页
Developmental plagiocephaly (DP) has been an increasing problem since the successful “back to sleep campaign”. The referrals for DP have increased by >400% during the years 2004 to 2008. Many infants spend less t... Developmental plagiocephaly (DP) has been an increasing problem since the successful “back to sleep campaign”. The referrals for DP have increased by >400% during the years 2004 to 2008. Many infants spend less time in the prone position nowadays and some of the risk factors for DP are as follows: less than 3 times per day for the tummy time, torticollis and slow achievement of motor milestones. There is a need for better information to the parents but also for other strategies to prevent DP. The aim of this study was to investigate the effect of a special pillow and thus to reduce pressure on the infant head. Method: infants aged zero to two months were included in the study. They were randomized to either intervention group or control group. Head shape was investigated on two occasions, on the second occasion motor development, mobility and muscle function of the neck were also investigated. The parents were asked about tummy time and sleep position. All infants were investigated by the same physical therapist, blinded to group belonging. Result: seven infants had CVAI >3.5 on the last assessment, five of these had not used any method to reduce pressure. Fishers exact test showed a tendency where infants with reduced pressure on the head had less DP (P 0.08). Paired t test showed significant decrease in CVAI for the infants who had had reduced pressure on the head (P 0.01). Among these infants the CVAI was zero for 47% in the last assessment. For the infants who had not had a reduction of pressure on the head, there was no indication of a decrease of CVAI (P 0.45), and only 12% of these infants had a CVAI that was zero in the last assessment. Conclusion: this pilot study shows that a specially designed pillow may prevent DP in young infants. However, a larger sample is needed to confirm or disprove this. The study is planned to go on until there are 200 participants. 展开更多
关键词 developmentAL PLAGIOCEPHALY INFANT Pillow MOTOR development Tummy time
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时差成像系统对胚胎培养效果的探讨 被引量:2
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作者 于婉莹 苏兴 +3 位作者 崔静 曾彬 郭婉茹 韩宝生 《联勤军事医学》 CAS 2023年第1期29-32,共4页
目的比较时差成像(time-lapse imaging,TLI)技术与体外受精-胚胎移植(in vitro fertilization and embryo transfer,IVF-ET)传统培养方法二者的培养效果,探讨TLI技术能否为胚胎发育及评估提供更有利的条件,从而改善妊娠结局。方法选取... 目的比较时差成像(time-lapse imaging,TLI)技术与体外受精-胚胎移植(in vitro fertilization and embryo transfer,IVF-ET)传统培养方法二者的培养效果,探讨TLI技术能否为胚胎发育及评估提供更有利的条件,从而改善妊娠结局。方法选取作者医院2022-01~03月行IVF-ET患者57例,为验证TLI系统的有效性及可行性,将每位患者的成熟卵子随机等分纳入TLI培养组(T1组)和传统体外培养组(C1组)。比较两组成熟卵子的2PN受精率、可移植胚胎率、优质胚胎率、囊胚形成率、优质囊胚率有无差别。随后收集2022-03~05月完全行TLI培养78个移植周期(T2组)及同时期传统体外培养146个移植周期(C2组)患者的资料,比较两组患者的胚胎指标及妊娠结局。结果T1组与C1组成熟卵子的2PN受精率、可移植胚胎率、优质胚胎率、囊胚形成率、优质囊胚率差异无统计学意义(P>0.05)。T2组与C2组患者各胚胎指标差异无统计学差异(P>0.05),但T2组患者的种植率、临床妊娠率显著高于C2组(P均<0.05),早期流产率显著低于C2组(P均<0.05)。结论TLI系统培养效果稳定,可将胚胎发育形态学与动力学相结合,选择发育潜能最优的胚胎进行移植,有效改善临床妊娠结局。 展开更多
关键词 时差成像 传统体外培养 胚胎发育潜能 妊娠结局
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A Specially Designed Pillow Can Decrease Developmental Plagiocephaly in Young Infants
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作者 Anna Ö hman 《Health》 2014年第11期1092-1098,共7页
Developmental plagiocephaly (DP) has been an increasing problem since the successful “back to sleep campaign”. The referrals for DP have increased by more than 400% during the years 2004 to 2008. Many infants spend ... Developmental plagiocephaly (DP) has been an increasing problem since the successful “back to sleep campaign”. The referrals for DP have increased by more than 400% during the years 2004 to 2008. Many infants spend less time in the prone position nowadays and some of the risk factors for DP are: tummy time less than 3 times per day, torticollis and slow achievement of motor milestones. Improved information for the parents is needed but also other strategies to prevent DP. This study is a continuum of an earlier pilot study;the aim was to investigate the effect of a pillow, designed to reduce pressure on the infant head. Method: Infants aged zero to two months were included in the study. They were randomized to either intervention group or control group. Head shape was investigated on two occasions, on the second occasion motor development, mobility and muscle function of the neck were also investigated. The parents were asked about tummy time and sleep position. All infants were investigated by the same physical therapist, blinded to group belonging. Result: Fishers exact test showed that it was more common with decreased CVAI among infants in the intervention group (P 0.001). Paired t test showed significant decrease in CVAI for the intervention group (P 0.002), but not for the control group (P 0.96). Conclusion: This study shows that a specially designed pillow can decrease DP in young infants. 展开更多
关键词 developmentAL PLAGIOCEPHALY INFANT Pillow MOTOR development Tummy time
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露狄恩蚜小蜂的鉴定以及个体发育和繁殖特性
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作者 宁晓雪 满孝明 +2 位作者 刘万学 耿慧 杨念婉 《中国生物防治学报》 CSCD 北大核心 2023年第3期731-739,共9页
露狄恩蚜小蜂Encarsia lutea(Masi)是烟粉虱Bemisia tabaci的优势寄生蜂之一。本研究基于形态学特征以及分子标记COI和28S对河北田间采集的寄生蜂进行了鉴定,确认为露狄恩蚜小蜂。明确该蜂的生殖方式为孤雌产雄、两性产雌;寄主关系为雌... 露狄恩蚜小蜂Encarsia lutea(Masi)是烟粉虱Bemisia tabaci的优势寄生蜂之一。本研究基于形态学特征以及分子标记COI和28S对河北田间采集的寄生蜂进行了鉴定,确认为露狄恩蚜小蜂。明确该蜂的生殖方式为孤雌产雄、两性产雌;寄主关系为雌雄蜂异律发育,是兼性自复寄生蜂,雌性卵和幼期寄生于初级寄主,即烟粉虱若虫,雄性卵和幼期寄生于次级寄主,即烟粉虱若虫体内的本种或异种寄生蜂幼虫。在温度26℃、相对湿度65%、光周期14L:10D的室内条件下开展了该蜂的个体发育和繁殖特性试验,结果表明雌、雄蜂卵-幼虫、预蛹-蛹以及成虫前期的发育历期分别为8.4 d、6.8 d、15.1 d和6.9 d、8.0 d、14.9 d;雌蜂的平均寿命为15.0 d,单次交配后雌蜂的平均繁殖量为50.0粒,性比严重偏雄,雄占比87.4%。上述相关结果可为研究异律复寄生蜂生物防治效益提供参考,并为该蜂的后续应用提供理论依据。 展开更多
关键词 露狄恩蚜小蜂 物种鉴定 发育历期 产卵量 后代性比
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土壤类型及含水量对花蓟马蛹期发育及羽化的影响
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作者 潘润东 李培征 +3 位作者 韩冬银 符悦冠 詹灿烂 李磊 《中国农学通报》 2023年第30期138-143,共6页
基于花蓟马Frankliniella intonsa(Trybom)偏好土壤内化蛹的习性,研究不同土壤及含水量对花蓟马化蛹及羽化的影响,以期为花蓟马蛹控制技术提供重要依据。采集黏土、壤土和沙土3种土壤并在105℃条件下烘干,在3种土壤中添加纯水至其含水... 基于花蓟马Frankliniella intonsa(Trybom)偏好土壤内化蛹的习性,研究不同土壤及含水量对花蓟马化蛹及羽化的影响,以期为花蓟马蛹控制技术提供重要依据。采集黏土、壤土和沙土3种土壤并在105℃条件下烘干,在3种土壤中添加纯水至其含水量达到3.00%、5.00%、10.00%、15.00%、20.00%和25.00%,随后将花蓟马老熟2龄若虫引入不同类型及含水量的土壤,观察其化蛹与羽化。土壤类型及含水量均显著影响了花蓟马的羽化,且2种因素之间交互作用显著(P<0.05)。在所有供试土壤中,随着土壤含水量的增加,花蓟马羽化率表现出先升高后降低的趋势。其中,花蓟马在含水量为10.00%沙土中羽化率最高,可达77.50%;在黏土中,当土壤含水量为15.00%时,花蓟马羽化率最高达63.33%;而在壤土中,当土壤含水量为15.00%和20.00%时,花蓟马的羽化率最高,分别为50.00%和47.50%。此外,研究发现花蓟马的羽化高峰在15.00%含水量的沙土中出现在第4天,而在其他含水量沙土以及所有含水量的黏土和壤土中其羽化高峰为第3天。土壤类型与含水量共同制约着花蓟马的化蛹及羽化,田间可以通过控制土壤湿度来干预花蓟马的化蛹及羽化。 展开更多
关键词 花蓟马 土壤类型 土壤含水量 羽化率 发育历期
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农业生产性服务与农户消费——基于江苏省1065份调查数据的实证分析 被引量:3
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作者 吉星 张红霄 王杰 《世界农业》 2023年第4期84-97,共14页
扩大农村内需是构建新发展格局、增强中国经济发展韧性的题中之义。本文在理论分析农业生产性服务对农户消费影响的基础上,利用2020年对江苏省26个区县1065个农户的微观调查数据,使用两阶段最小二乘法(2SLS)、近似外生工具变量法、工具... 扩大农村内需是构建新发展格局、增强中国经济发展韧性的题中之义。本文在理论分析农业生产性服务对农户消费影响的基础上,利用2020年对江苏省26个区县1065个农户的微观调查数据,使用两阶段最小二乘法(2SLS)、近似外生工具变量法、工具变量分位数回归(IVQR)等计量手段,证实农业生产性服务能显著提升农户消费水平。具体而言,农户购买农业生产性服务的环节数每增加1个,将产生3.2%的人均消费支出增长,其中收获服务和喷洒农药服务的消费效应最明显。基于消费分位数的回归结果表明,农业生产性服务促进低消费禀赋农户增加消费的作用更大。进一步分析发现,农业生产性服务主要促进了农户发展型消费支出。机制分析证明,农业生产性服务通过收入增长、丰富社会网络、闲暇时间配置的中间路径发挥消费效应。研究发现有助于理解农业生产性服务与农户消费之间的内在机制,能够为提升农村消费水平目标下推广农业生产性服务提供启示。 展开更多
关键词 农业生产性服务 农户消费 发展型消费 社会网络 闲暇时间
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院校发展型支持对博士生心理困难的缓解效应研究——以“因劳致郁”现象为例
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作者 郭仕豪 《终身教育研究》 2023年第6期28-35,共8页
博士生的学习时间投入是培养质量的基本条件,然而可能出现“因劳致郁”现象,博士生陷入心理困难,院校有必要通过发展型支持予以缓解。基于全球博士生调查数据,本研究将心理支持、职业与学术支持作为发展型支持,另将经济支持作为保障型支... 博士生的学习时间投入是培养质量的基本条件,然而可能出现“因劳致郁”现象,博士生陷入心理困难,院校有必要通过发展型支持予以缓解。基于全球博士生调查数据,本研究将心理支持、职业与学术支持作为发展型支持,另将经济支持作为保障型支持,以比较发展型支持对缓解博士生心理健康问题的有效性。分析发现:经济、心理、职业、学术四类支持存在群体异质性,发展型支持的水平高于保障型支持;每种支持措施均能独立缓解博士生心理困难,但对于“因劳致郁”现象,仅有发展型支持可以有效缓解,而保障型支持则无法有效缓解。培养单位与导师有必要以风险管理为思路,加强对博士生的发展型支持,同时优化保障型支持,拓展其解决即时性困难的功能。 展开更多
关键词 博士生 时间投入 心理健康 发展型支持 保障型支持
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发展性照顾护理在重症监护室中应用对早产儿睡眠时间、住院时间的影响分析
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作者 赖雅云 黄玉婷 王彩霞 《世界睡眠医学杂志》 2023年第2期315-317,共3页
目的:分析研究早产儿予以发展性照顾护理的应用价值。方法:选取2018年12月至2021年12月泉州市妇幼保健院儿童医院收治的早产儿100例作为研究对象,按照随机数字表法分为对照组和观察组,每组50例。对照组予以常规护理,观察组采取发展性照... 目的:分析研究早产儿予以发展性照顾护理的应用价值。方法:选取2018年12月至2021年12月泉州市妇幼保健院儿童医院收治的早产儿100例作为研究对象,按照随机数字表法分为对照组和观察组,每组50例。对照组予以常规护理,观察组采取发展性照顾护理,比较2组各项指标(家属满意度评估值、睡眠质量测评值、体格发育指标测评值、智能发育指标测评值、并发症发生率评估值)。结果:观察组家属满意度占比高于对照组,差异有统计学意义(P<0.05)。观察组睡眠质量测评值高于对照组,差异有统计学意义(P<0.05)。干预前,体格发育指标测评值差异无统计学意义(P>0.05);干预后观察组高于对照组,差异有统计学意义(P<0.05)。干预前,智能发育指标测评值差异无统计学意义(P>0.05);干预后观察组高于对照组,差异有统计学意义(P<0.05)。观察组并发症发生率占比低于对照组,差异有统计学意义(P<0.05)。结论:在早产儿护理期间通过予以发展性照顾护理具有降低并发症发生率、促进智能发育及体格发育的效果,且睡眠时间明显延长,住院时间缩短,家属对护理工作表示满意,很大程度上提高了护理水平。 展开更多
关键词 重症监护室 发展性照顾护理 睡眠时间 并发症 家属满意度
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人工智能软件在儿童发育相关疾病骨龄评估中的临床应用
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作者 邓成清 孙安林 +2 位作者 唐宇轩 张萍 唐爱群 《中华养生保健》 2023年第22期54-57,共4页
目的探讨与分析人工智能软件在儿童发育相关疾病骨龄评估中的临床应用价值。方法选取2020年5月—2022年12月在江苏省盐城市射阳县人民医院诊治的84例发育相关疾病儿童作为研究对象,患儿都给予左手数字化X线检查,采用杭州深睿博联科技有... 目的探讨与分析人工智能软件在儿童发育相关疾病骨龄评估中的临床应用价值。方法选取2020年5月—2022年12月在江苏省盐城市射阳县人民医院诊治的84例发育相关疾病儿童作为研究对象,患儿都给予左手数字化X线检查,采用杭州深睿博联科技有限公司人工智能影像分析软件对数字化X线摄片进行骨龄评估,同时也由影像科住院医师与影像科主任医师进行阅片,以影像科主任医师的判断结果作为金标准,判定评估价值。结果人工智能阅片时间显著少于住院医师阅片与金标准阅片,差异有统计学意义(P<0.05)。住院医师阅片与金标准阅片时间比较,差异无统计学意义(P>0.05)。人工智能阅片误差与金标准阅片比较,差异无统计学意义(P>0.05),住院医师阅片误差与金标准阅片比较,差异无统计学意义(P<0.05)。住院医师阅片、人工智能阅片、金标准阅片准确率分别为88.10%、97.62%、98.81%,人工智能阅片、金标准阅片的准确率显著高于住院医师阅片,差异有统计学意义(P<0.05)。人工智能阅片、金标准阅片的准确率比较,差异无统计学意义(P>0.05)。结论人工智能软件在儿童发育相关疾病骨龄评估中的临床应用能缩短阅片时间,提高对于骨龄判定的准确性,缩小阅片的误差。 展开更多
关键词 人工智能软件 儿童发育相关疾病 骨龄 阅片时间 准确性 误差
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发展性照顾护理在早产儿中的应用效果
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作者 范文燕 《中国民康医学》 2023年第3期172-175,共4页
目的:观察发展性照顾护理在早产儿中的应用效果。方法:选取2019年8月至2020年9月于该院出生的86例早产儿进行前瞻性研究,按照随机数字表法将其分为对照组和观察组各43例。对照组给予常规护理,观察组给予发展性照顾护理,比较两组护理前... 目的:观察发展性照顾护理在早产儿中的应用效果。方法:选取2019年8月至2020年9月于该院出生的86例早产儿进行前瞻性研究,按照随机数字表法将其分为对照组和观察组各43例。对照组给予常规护理,观察组给予发展性照顾护理,比较两组护理前后体格发育指标水平、免疫指标[免疫球蛋白G(IgG)、IgA]水平、睡眠时间、进奶量及不良发育结局(认知障碍、神经系统发育落后、支气管肺发育不良)。结果:出生后14、30 d,观察组头围、身长及体质量增长值均高于对照组,差异有统计学意义(P<0.05);出生后30 d,两组IgG、IgA水平均高于出生时,且观察组高于对照组,差异有统计学意义(P<0.05);观察组睡眠时间长于对照组,进奶量多于对照组,差异均有统计学意义(P<0.05);观察组不良发育结局发生率为18.60%(8/43),低于对照组的39.53%(17/43),差异有统计学意义(P<0.05)。结论:发展性照顾护理应用于早产儿可促进体格发育,提高免疫球蛋白水平和进奶量,延长睡眠时间,降低不良发育结局发生率,效果优于常规护理。 展开更多
关键词 早产儿 发展性照顾护理 体格发育 免疫球蛋白 睡眠时间 进奶量
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