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Climate,female traits and population features as drivers of breeding timing in Mediterranean red deer populations

Integrative Zoology 2017年第5期12卷 396-408页

作者： marta PELÁez Alfonso san MIGUEL Carlos RODRÍGUez-VIGAL Ramón PEREA Department of natural Systems and Resources Technical University of MadridMadridSpain national Parks Autonomous Agency MadridSpain Department of Biology Stanford UniversityStanfordCaliforniaUSA

Understanding the factors that lead to variation in the timing of breeding in widespread species such as red deer(Cervus elaphus)is crucial to predict possible responses of wild populations to different climate ***,we sought to further understand the causes of inter-annual variation in the reproduction timing of female deer in Mediterranean *** integrative approach was used to identify the relative importance of individual,population and climate traits in the date of conception of free-ranging deer,based on a dataset of 829 hinds culled during 12 *** found that a population trait,density,was the most important factor explaining the variation in conception dates,with greater densities causing later conception *** mass was the second in importance,with heavier females conceiving earlier than lighter *** equally important was the spring real bioclimatic index,a measure of plant productivity,causing later conception dates in the least productive springs(drier and hotter).Another climatic component,the end of summer drought,showed that the sooner the autumn arrives(greater rainfalls and cooler temperatures)the earlier the conception ***,age class was found to be a minor factor in determining conception *** older females(≥10 years old)conceived significantly later,suggesting reproductive *** study highlights not only the importance of population and individual traits but also the influence of climatic parameters on the deer reproductive cycle in Mediterranean environments,giving valuable insight into how reproductive phenology may respond to seasonality and global climate changes.

关键词： density-dependence mating short-day breeder summer drought ungulates

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足式机器人SLIP模型向上跳跃台阶的运动控制

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控制理论与应用 2024年第4期41卷 631-637页

作者：肖乐伞红军孙海杰陈久朋昆明理工大学机电工程学院云南昆明650500 云南省先进装备智能制造技术重点实验室云南昆明650500

由于存在地势起伏,台阶对足式机器人运动稳定性会带来较大挑战.弹簧负载倒立摆模型(SLIP)作为研究足式机器人的优良模板,能否完成向上跳跃台阶的动作与其腿部摆角,起跳位置和跳跃高度都有密切的关系.由于调整模型腿部摆角规律容易引发... 详细信息

由于存在地势起伏,台阶对足式机器人运动稳定性会带来较大挑战.弹簧负载倒立摆模型(SLIP)作为研究足式机器人的优良模板,能否完成向上跳跃台阶的动作与其腿部摆角,起跳位置和跳跃高度都有密切的关系.由于调整模型腿部摆角规律容易引发运动失效,故本文在算法中引入虚拟弹簧腿,根据虚拟弹簧腿的运行规律确定合理起跳位置,根据起跳位置来控制系统跳跃高度进而完成跳跃台阶的动作.最后利用仿真软件进行多组仿真,结果表明本文算法对起跳区间划分合理,对起跳高度控制精准,能够实现SLIP模型跳跃台阶前后的稳定运动.

关键词：足式机器人运动控制 SLIP模型台阶地形能量补充

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科技金融政策对城市碳排放绩效的影响效应研究——基于“科技与金融结合试点”的准自然实验

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软科学 2024年第3期38卷 37-43页

作者：江三良贾芳芳安徽大学经济学院合肥230601

基于2006—2019年282个地级市面板数据,将“科技与金融结合试点”视为一项准自然实验,构建双重差分模型评估科技金融政策对碳排放绩效的影响及作用机制。研究表明:第一,科技与金融结合试点政策能够显著提升城市碳排放绩效,且经过多种稳... 详细信息

基于2006—2019年282个地级市面板数据,将“科技与金融结合试点”视为一项准自然实验,构建双重差分模型评估科技金融政策对碳排放绩效的影响及作用机制。研究表明:第一,科技与金融结合试点政策能够显著提升城市碳排放绩效,且经过多种稳健性检验之后,这一结论依旧成立。第二,机制分析表明,试点政策能够通过推动经济发展、集聚科技人才以及促进绿色创新三条路径推动碳排放绩效的提升。第三,试点政策对城市碳排放绩效的作用差异与城市等级、资源禀赋及金融发展水平有关,对于等级较高、金融发展水平较高、非资源型的城市,试点政策对碳排放绩效的提升效果更加显著。

关键词：科技金融政策碳排放绩效双重差分法准自然实验

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Review of the treatment of liver hydatid cysts

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World Journal of Gastroenterology 2015年第1期21卷 124-131页

作者： Concepción Gomez i Gavara Rafael López-Andújar Tatiana Belda Ibáez José M Ramia ngel ngel Moya Herraiz Francisco Orbis Castellanos Eugenia Pareja Ibars fernando san Juan Rodríguez Hepatobiliopancreatic Surgery and Transplantation Unit La Fe University Hospital46026 ValenciaSpain Digestive Surgery Virgen de los Lirios HospitalAlcoy03804 ValenciaSpain General Hospital Guadalajara Hepatobiliopancreatic Surgery Unit19002 GuadalajaraSpain

A review was carried out in Medline,LILACS and the Cochrane *** database search strategy included the following terms: "hydatid cyst","liver","management","meta-analysis" and "randomized controlled trial".no language limits were used in the literature *** latest electronic search date was the 7th of January *** and exclusion criteria: all relevant studies on the assessment of therapeutic methods for hydatid cysts of the liver were considered for *** from editorials,letters to publishers,low quality review articles and studies done on animals were excluded from ***,well-structured abstracts from relevant articles were selected and accepted for *** forms were designed for data extraction; two investigators entered the data on patient demographics,methodology,recurrence of HC,mean cyst size and number of cysts per *** hundred and fourteen articles were identified using the previously described search *** applying the inclusion and exclusion criteria detailed above,57 articles were selected for final analysis: one meta-analysis,9 randomized clinical trials,5 non-randomized comparative prospective studies,7 non-comparative prospective studies,and 34 retrospective studies(12 comparative and 22 noncomparative).Our results indicate that antihelminthic treatment alone is not the ideal treatment for liver hydatid *** studies in the literature support the effectiveness of radical treatment compared with conservative *** surgery with omentoplasty is effective in preventing postoperative complications.A laparoscopic approach is safe in some *** drainage with albendazole therapy is a safe and effective alternative treatment for hydatid cysts of the *** surgery with preand post-operative administration of albendazole is the best treatment option for liver hydatid cysts due to low recurrence and complication rates.

关键词： Hydatid Liver Cyst Echinococcosis PAIR Cystectomy

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Control of disability glare by means of electrochromic filtering glasses:A pilot study

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Journal of Innovative Optical Health Sciences 2017年第1期10卷 11-20页

作者： Rosa Maria Coco-martín Ruben Cuadrado-Asensio Ceesar Vega-Colado Ricardo Vergaz Jose M.sanchez-Pena Ana Viñuales Sergi Peris Pau Artús M.Begona Coco-martín IOBA Universidad de ValladolidValladolidSpain GDAF-UC3M Grupo de Displays y Aplicaciones Fotonicas Department de Tecnologia Electronica Universidad Carlos III de MadridSpain IK4-CIDETEC Parque Tecnologico de San Sebastian GuipuzcoaSpain Indo Optical Group Departamento I+D SantCugat del Valles BarcelonaSpain GIDFYS European University Miguel de Cervantes(UEMC)Department of HealthSciencesSpain

Purpose:To evaluate the potential clinical usability of a new prototype of ophthalmic blue light filters developed by using electrochromic technology in pseudophakic patients complaining of ***:A prototype of electrochromic device was developed,with a specific frame that enclosed an electronic driver that allowed personalizing its function for each patient.A pro-spective,observational case series study was performed to test *** patients who had un-dergone cataract surgery with clear intraocular lenses and complaining of glare were included in the *** outcome measures were the results obtained in the satisfaction questionnaire that was delivered to ***,visual acuity,contrast sensitivity,and reading ability data were evaluated with and without the prototype under diferent lighting conditions and different modes of the prototype after a complete month of *** transmittance was also ***:Visual acuity,contrast sensitivity and reading function did not change significantly with prototype *** main activity for which the prototype was used was *** one patient found that the dimming level was *** patients reported variable discomfort when passing tunnels,not sufficiently clear indoors,or put on and remove *** lenses slightly decreased their transmittance at the end of the ***:Glasses based on elect rochromic technology may be acceptable for outdoor/indoor use and for distance-near *** studies with larger samples must be conducted to confirm the clinical usability of these glasses.

关键词： Optical filters electro-optical devices technical visual aids electronic control.

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二维Janus LuClI的铁谷特性研究

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原子与分子物理学报 2025年第2期42卷 165-174页

作者：朱靖欣郭三栋西安邮电大学电子工程学院

铁谷材料由于其固有的铁磁性质，可以产生自发谷极化，从而实现谷自由度的操纵.不同的谷极化状态为铁谷材料在信息传递领域的应用提供了可能性.在本文的工作中，采用了可靠的第一性原理计算方法，证明了Janus单层LuClI的动力学、力学和... 详细信息

铁谷材料由于其固有的铁磁性质，可以产生自发谷极化，从而实现谷自由度的操纵.不同的谷极化状态为铁谷材料在信息传递领域的应用提供了可能性.在本文的工作中，采用了可靠的第一性原理计算方法，证明了Janus单层LuClI的动力学、力学和热力学稳定性.发现Janus单层LuClI是一种有潜力的铁谷材料，它有着50.927 meV的谷劈裂.当Lu原子磁矩方向(平面外)发生颠倒时，可以实现谷极化翻转.还计算了Janus单层LuClI在布里渊区中的Berry曲率分布，主要集中在-K和K谷，可以实现反常谷霍尔效应.当电子关联强度比较小时，Janus单层LuClI的易磁化轴将指向面内，从而失去自发谷极化.尽管如此，利用应变调控可以使磁化方向从面内转向面外，从而产生谷极化.此外，Janus单层LuClI同时具有面内和面外压电响应，计算得到的面内压电应变系数d11大于大部分已有二维材料的计算值，而面外压电系数d31非常小.这为通过压电效应调控谷载流子提供了可能性.

关键词：铁谷材料压电第一性原理计算

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Comparison of a Standard Dose with a Low Dose of Levobupivacaine in Spinal Anesthesia for Caesarean Section

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Open Journal of Anesthesiology 2014年第12期4卷 318-323页

作者： Ana Sofía Del Castillo Sardi Alejandro Olivadía Eva san.martín Children Hospital Panama City Panama

Obstetric anesthesia carries great responsibilities because there are two patients, the mother and the fetus. The purpose of the present study is to compare two doses of Levobupivacaine for spinal anesthesia at elective cesarean section, to determine the best dose that can give mother and fetal hemodynamic stability and a fast anesthesia recovery after the surgery. Method: We conducted a prospective randomized comparative study in 56 patients undergoing cesarean section with spinal dose of Levobupivacaine 6 mg (22 patients) and 10 mg (34 patients), both groups combined with 25 μg of fentanyl. The two doses of local anesthetic were compared with regard to sensory and motor blockade, the need for supplementation epidural, the severity of hypotension and other complications. Result: The 6 mg of levobupivacaine group presents no difference in the incidence of hypotension, bradycardia, nauseas or vomiting compared with the 10 mg of levobupivacaine group, but presents higher incidence of supplementary analgesia and lower mother satisfaction. Conclusions: The combination of 6 mg of levobupivacaine with 25 μg of fentanyl on spinal anesthesia can be an option for short time cesarean section, buy doesn’t present a superior profile in side effects over the 10 mg of levobupivacaine with 25 μg of fentanyl combination with worst maternal satisfaction.

关键词： Levobupivacaine Spinal Anesthesia Cesarean Section

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K6型单层球面网壳整体交互耦合屈曲行为

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同济大学学报（自然科学版） 2024年第4期52卷 557-566页

作者：毋凯冬张业成伞冰冰罗永峰河海大学土木与交通学院江苏南京210098 同济大学土木工程学院上海200092

采用有限元数值模拟,基于K6型单层球面网壳的屈曲与后屈曲性态,提出整体屈曲的判别准则,并首次从变形特征角度分析两种整体屈曲模态交互耦合的发生机理及对屈曲承载力的削弱效应。研究结果表明,K6型单层球面网壳的稳定性易受整体交互耦... 详细信息

采用有限元数值模拟,基于K6型单层球面网壳的屈曲与后屈曲性态,提出整体屈曲的判别准则,并首次从变形特征角度分析两种整体屈曲模态交互耦合的发生机理及对屈曲承载力的削弱效应。研究结果表明,K6型单层球面网壳的稳定性易受整体交互耦合屈曲影响,且可导致屈曲极限承载力的显著削弱及不稳定后屈曲;其变形模式从屈曲阶段的最低阶整体屈曲模态主导,演化为初始后屈曲阶段的整体交互耦合屈曲模态主导,及最终的次低阶整体屈曲模态主导,是交互耦合屈曲产生的原因;缺陷幅值也会影响整体交互耦合屈曲对K6型单层球面网壳屈曲极限性能的主导作用。

关键词：空间结构网壳结构有限元模拟耦合屈曲非线性稳定

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Modeling of potential habitat suitability of Hippocamelus bisulcus: effectiveness of a protected areas network in Southern Patagonia

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Ecological Processes 2017年第1期6卷 296-309页

作者： Yamina Micaela Rosas Pablo LPeri Alejandro Huertas Herrera Hernán Pastore Guillermo martínez Pastur Laboratorio de Recursos Agroforestales Centro Austral de Investigaciones Científicas(CONICET)Houssay 200Ushuaia 9410Tierra del FuegoArgentina UnPA-InTA-COnICET.CC 332 Río Gallegos 9400Santa CruzArgentina Delegación Regional Patagonia norte Administración de Parques NacionalesVicealmirante O’Connor 1188San Carlos de Bariloche 8400Río NegroArgentina

Introduction:Huemul(Hippocamelus bisulcus Molina)is the most threatened flag species of Southern Patagonia,where conservation efforts were not effective to avoid the retraction of its distribution *** quality modeling can assist to design better management strategies for regional conservation *** objective was to elaborate one habitat suitability map for huemul,defining the environmental characteristics at landscape level,and determining the distribution of the suitable habitat inside the current natural reserve ***:We used a database of 453 records and explored 40 potential explanatory variables(climate,topographic,and landscape variables including human-related ones)to develop one habitat suitability map using the Environmental niche Factor Analysis(EnFA)for santa Cruz province(Argentina).We combined the outputs in a GIS project using different shapes,including the current natural reserve ***:We defined the potential habitat for huemul,where forest edges and ecotone zones(e.g.,mainly alpine environments)were the most important environmental variables,as well as some forest types(e.g.,nothofagus pumilio).Habitat losses were found in the extreme potential distribution areas(northern and southern areas),probably related to the increasing ranch *** current natural reserve network maintains approximately half of the huemul potential habitat in santa Cruz province,where national Parks presented the similar conservation importance than the Provincial natural ***:Habitat suitability model for huemul can be used as a decision support system for new management strategies at different landscape levels to improve the current conservation efforts.

关键词： nothofagus forests EnFA Habitat loss Conservation Species requirements

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融合深度特征的无人机影像SfM重建

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测绘学报 2024年第2期53卷 321-331页

作者：姜三刘凯李清泉江万寿中国地质大学(武汉)计算机学院湖北武汉430074 人工智能与数字经济广东省实验室(深圳) 广东深圳518060 武汉大学测绘遥感信息工程国家重点实验室湖北武汉430079

可靠特征匹配是无人机影像运动恢复结构(SfM)的重要环节。近年来,深度学习被用于特征提取和匹配,在基准数据集表现优于SIFT等手工特征。但是,公开模型往往采用互联网照片进行训练和测试,鲜有用于无人机影像SfM三维重建的性能评价。利用... 详细信息

可靠特征匹配是无人机影像运动恢复结构(SfM)的重要环节。近年来,深度学习被用于特征提取和匹配,在基准数据集表现优于SIFT等手工特征。但是,公开模型往往采用互联网照片进行训练和测试,鲜有用于无人机影像SfM三维重建的性能评价。利用多组不同特点的无人机数据集,本文对比分析手工特征和深度学习特征在无人机影像特征匹配和SfM三维重建的综合性能。试验结果表明,利用公开的预训练模型,结合手工特征的高精度定位和深度学习的特征描述能力,可实现更准确和完整的特征匹配,并在SfM三维重建中取得与SIFT等手工特征相当,甚至更优的性能。

关键词：摄影测量三维重建运动恢复结构深度特征卷积神经网络

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