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Individualised evaluation based on pathophysiology for moyamoya vasculopathy:application in surgical revascularisation

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Stroke & Vascular Neurology 2024年第3期9卷 268-278,I0241-I0246页

作者： xin Zhang Yu Lei Jiabin Su Chao Gao Yanjiang li Rui Feng Ding Xia peng Gao Yuxiang Gu Ying Mao Department of Neurosurgery Huashan Hospital Fudan UniversityShanghaiChina Department of Radiology Huashan Hospital Fudan UniversityShanghaiChina

Background Although bypass surgery is an effective treatment for moyamoya vasculopathy(MMV),the incidence of postoperative complications is still *** study aims to introduce a novel evaluating system based on individualised pathophysiology of MMV,and to assess its clinical *** This multicentre,prospective study enrolled adult patients with MMV from huashan Hospital,Fudan University and National Center for Neurological Disorders,China between March 2021 and February *** neuroimages containing structural and functional information were used to evaluate personalised disease severity and fused to localise the surgical field,avoid invalid regions and propose alternative recipient *** recipient artery was further selected intraoperatively by assessing regional haemodynamic and electrophysiological *** preanastomosis and postanastomosis data were compared with assist with the postoperative *** who received such tailored revascularisations were included in the novel group and the others were included in the traditional *** 30-day surgical outcomes and intermediate long-term follow-up were *** Totally 375 patients(145 patients in the novel group and 230 patients in the traditional group)were *** overall complication rate was significantly lower in the novel group(p˂0.001).In detail,both the rates of postoperative infarction(p=0.009)and hyperperfusion syndrome(p=0.010)were significantly *** functional outcomes trended to be more favourable in the novel group,though not significantly(p=0.260).Notably,the proportion of good functional status was higher in the novel group(p=0.009).Interestingly,the preoperative statuses of perfusion and metabolism around the bypass area were significantly correlated with the occurrence of postoperative complications(P˂0.0001).Conclusions This novel evaluating system helps to identify appropriate surgical field and recipient arteries during b

关键词： surgical bypass metabolism

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Wafer-scale carbon-based CMOS PDK compatible with siliconbased VLSI design flow

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Nano Research 2024年第8期17卷 7557-7566页

作者： Minghui Yin Haitao Xu Yunxia You Ningfei Gao Weihua Zhang Hongwei liu huanhuan zhou Chen Wang lian-Mao peng Zhiqiang li Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China State Key Lab of Fabrication Technologies for Integrated Circuits Beijing 100029China Beijing hua Tan Yuan xin Electronics Technology Co. Ltd.Beijing 101399China Institute of Carbon-based Thin Film Electronics Peking UniversityShanxi 030012China Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics School of ElectronicsPeking UniversityBeijing 100871China

Carbon nanotube field-effect transistors(CNTFETs)are increasingly recognized as a viable option for creating high-performance,low-power,and densely integrated circuits(ICs).Advancements in carbon-based electronics,encompassing materials and device technology,have enabled the fabrication of circuits with over 1000 gates,marking carbon-based integrated circuit design as a burgeoning field of research.A critical challenge in the realm of carbon-based very-large-scale integration(VLSI)is the lack of suitable automated design methodologies and infrastructure *** this study,we present the development of a waferscale 3μm carbon-based complementary metal-oxide-semiconductor(CMOS)process design kit(PDK)(3μm-CNTFETs-PDK)compatible with silicon-based Electronic Design Automation(EDA)tools and VLSI circuit design *** proposed 3μm-CNTFETs-PDK features a contacted gate pitch(CGP)of 21μm,a gate density of 128 gates/mm^(2),and a transistor density of 554 transistors/mm^(2),with an intrinsic gate delay around 134 *** of the 3μm-CNTFETs-PDK was achieved through the successful design and tape-out of 153 standard cells and 333-stage ring oscillator *** the carbon-based PDK and a silicon-based design platform,we successfully implemented a complete 64-bit static random-access memory(SRAM)circuit system for the first time,which exhibited timing,power,and area characteristics of clock@10 kHz,122.1μW,3795μm×2810μ*** research confirms that carbon-based IC design can be compatible with existing EDA tools and silicon-based VLSI design flow,thereby laying the groundwork for future carbon-based VLSI advancements.

关键词： carbon nanotube field-effect transistors(CNTFETs) complementary metal-oxide-semiconductor(CMOS) process design kit(PDK) wafer-scale very-large-scale integration(VLSI)

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自适应双坐标系的差分进化算法求解混合变量优化问题

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计算机学报 2024年第9期47卷 2116-2140页

作者：周新宇黄君洪彭虎王晖王峰江西师范大学计算机信息工程学院南昌330022 吉林大学计算机科学与技术学院长春130012 九江学院计算机与大数据科学学院江西九江332005 南昌工程学院信息工程学院南昌330022 武汉大学计算机学院武汉430072

如何设计求解混合变量优化问题(Mixed-variable Optimization Problems,MVOPs)的相关算法,是计算机算法设计与分析领域中的一个重要研究方向.该问题的求解难点在于需同时优化连续型和离散型决策变量,目前进化算法(Evolutionary Algorith... 详细信息

如何设计求解混合变量优化问题(Mixed-variable Optimization Problems,MVOPs)的相关算法,是计算机算法设计与分析领域中的一个重要研究方向.该问题的求解难点在于需同时优化连续型和离散型决策变量,目前进化算法(Evolutionary Algorithms,EAs)是求解该问题的一种有效手段.然而,现有的相关EAs忽略了问题变量之间的相关性,导致算法性能还存在一定不足.为此,本文从变量相关性角度出发,提出了一种自适应双坐标系的差分进化算法来求解MVOPs.首先,利用种群的协方差矩阵信息来构建特征坐标系,实现在特征坐标系下执行算法的相关操作,以松弛连续变量与离散变量之间的相关性;其次,为避免种群多样性丢失,仍保留了原坐标系,并设计了一种自适应策略来应用特征坐标系和原坐标系,以发挥双坐标系的优势;最后,为提高离散变量的优化效果,专门设计了一种基于离散变量相关性的局部搜索策略,以增强算法的整体性能.为验证本文方法性能,在一套包含28个测试函数的通用测试集上进行了大量实验,与5种求解MVOPs的知名EAs进行了对比,结果表明本文方法有更好性能.此外,在一个实际MVOP上,即焊接梁设计问题,本文方法能取得目前已知最好解.本文方法为计算机算法设计和分析领域的相关工作提供了新的思路.

关键词：混合变量差分进化变量相关性特征坐标系双坐标系

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Filamentous morphology engineering of bacteria by iron metabolism modulation through MagR expression

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Synthetic and Systems Biotechnology 2024年第3期9卷 522-530页

作者： Mengke Wei Chenyang Han Xiujuan zhou Tianyang Tong Jing Zhang xinmiao Ji peng Zhang Yanqi Zhang Yan liu xin Zhang Tiantian Cai Can Xie Institutes of Physical Science and Information Technology Anhui UniversityHefeiAnhui230039China High Magnetic Field Laboratory Hefei Institutes of Physical ScienceChinese Academy of SciencesScience IslandHefeiAnhui230031China Science Island Branch of Graduate School University of Science and Technology of ChinaHefeiAnhui230036China Department of Anatomy Anhui Medical UniversityHefeiAnhui230032China Institute of Quantum Sensing Zhejiang UniversityHangzhouZhejiang310027China

The morphology is the consequence of evolution and *** coli is rod-shaped bacillus with regular dimension of about 1.5μm long and 0.5μm *** shape-related genes have been identified and used in morphology engineering of this ***,little is known about if specific metabolism and metal irons could modulate bacteria *** in this study,we discovered filamentous shape change of *** cells overexpressing pigeon MagR,a putative magnetoreceptor and extremely conserved iron-sulfur *** transcriptomic analysis strongly suggested that the iron metabolism change and iron accumulation due to the overproduction of MagR was the key to the morphological *** model was further validated,and filamentous morphological change was also achieved by supplement *** cells with iron in culture medium or by increase the iron uptake genes such as entB and *** study extended our understanding of morphology regulation of bacteria,and may also serves as a prototype of morphology engineering by modulating the iron metabolism.

关键词： Morphology regulation Iron accumulation Filamentous bacteria MagR overexpression

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Electroacupuncture Promotes Angiogenesis in Mice with Cerebral Ischemia by Inhibiting miR-7

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Chinese Journal of Integrative Medicine 2024年第6期30卷 543-550页

作者： YU Qian Shu Shi JU xin-yao peng Wei REN Xue-qi SI Shu-han SONG Shi-zhen XIE Xue-yun FANG Bang-jiang zhou Shuang School of Acupuncture-Moxibustion and Tuina Shanghai University of Traditional Chinese MedicineShanghai201203China College of Basic Medicine Shanghai University of Traditional Chinese MedicineShanghai201203China Department of Emergency Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai200032China

Objective To observe the angiogenesis effect of electroacupuncture(EA)at Shuigou acupoint(GV 26)in the treatment of cerebral ischemia,and explore the value of miRNA-7(miR-7)in *** First,48 mice were randomly divided into sham operation,middle cerebral artery occlusion(MCao)model,and EA treatment *** 9 mice were divided into carrier control group,miR-7 knockout group and miR-7 overexpression group(n=3 each group).Finally,20 mice were divided into model and carrier control group,model and miR-7 knockout group,EA treatment and carrier control group and EA treatment and miR-7 overexpression group,with 3–6 mice in each *** MCao model was established in the MCao and EA *** deficit score and 2,3,5-triphenyltetrazolium chloride(TTC)staining were used to evaluate the severity of cerebral ***-eosin staining was used to describe basic pathological *** was used to quantify cerebral microvessel ***-time PCR and Western blot were used to detect the expression of miR-7 and its downstream target genes Krüppel-like factor 4/vascular endothelial growth factor(KLF4/VEGF)and angiopoietin-2(ANG-2)in the ischemic cerebral *** After EA,neurological deficit scores and infarction volumes decreased,and the density of cerebral microvessels *** the MCao group,miR-7 expression was higher than that in the sham group(Pao group(Pao mice likely by inhibiting the expression of miR-7 and relieving inhibition of downstream target genes KLF4/VEG

关键词： electroacupuncture cerebral ischemia miRNA-7 angiogenesis Shuigou(GV 26) acupuncture points

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Highly Thermally Conductive and Structurally Ultra‑Stable Graphitic Films with Seamless Heterointerfaces for Extreme Thermal Management

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Nano-Micro Letters 2024年第3期16卷 383-397页

作者： Peijuan Zhang Yuanyuan Hao Hang Shi Jiahao Lu Yingjun liu xin Ming Ya Wang Wenzhang Fang Yuxing Xia Yance Chen peng li Ziqiu Wang Qingyun Su Weidong Lv Ji zhou Ying Zhang Haiwen Lai Weiwei Gao Zhen Xu Chao Gao MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringKey Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang ProvinceZhejiang University38 Zheda RoadHangzhou 310027People’s Republic of China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan 030032People’s Republic of China Beijing Spacecrafts Manufacturing Co. LtdBeijing Friendship Road 104Haidian DistrictBeijing 100094People’s Republic of China Beijing Institute of Space Mechanics and Electricity Beijing Friendship Road 104Haidian DistrictBeijing 100094People’s Republic of China China Academy of Aerospace Aerodynamics Beijing 100074People’s Republic of China Hangzhou Gaoxi Technol Co. LtdHangzhou 311113People’s Republic of China International Research Center for X Polymers International CampusZhejiang UniversityHaining 314400People’s Republic of China

Highly thermally conductive graphitic film(GF)materials have become a competitive solution for the thermal management of high-power electronic ***,their catastrophic structural failure under extreme alternating thermal/cold shock poses a significant challenge to reliability and ***,we present the first investigation into the structural failure mechanism of GF during cyclic liquid nitrogen shocks(LNS),which reveals a bubbling process characterized by“permeation-diffusion-deformation”*** overcome this long-standing structural weakness,a novel metal-nanoarmor strategy is proposed to construct a Cu-modified graphitic film(GF@Cu)with seamless *** well-designed interface ensures superior structural stability for GF@Cu after hundreds of LNS cycles from 77 to 300 ***,GF@Cu maintains high thermal conductivity up to 1088 W m^(−1)K^(−1)with degradation of less than 5%even after 150 LNS cycles,superior to that of pure GF(50%degradation).Our work not only offers an opportunity to improve the robustness of graphitic films by the rational structural design but also facilitates the applications of thermally conductive carbon-based materials for future extreme thermal management in complex aerospace electronics.

关键词： Highly thermally conductive Structurally ultra-stable Graphitic film Extreme thermal management liquid nitrogen bubbling

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Genome assembly of autotetraploid Actinidia arguta highlights adaptive evolution and enables dissection of important economic traits

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Plant Communications 2024年第6期5卷 173-192页

作者： Xue-Mei Lu Xiao-Fen Yu Guo-Qiang li Ming-Hao Qu huan Wang Chuang liu Yu-Ping Man Xiao-Han Jiang Mu-Zi li Jian Wang Qi-Qi Chen Rui Lei Cheng-Cheng Zhao Yun-Qiu zhou Zheng-Wang Jiang Zuo-zhou li Shang Zheng Chang Dong Bai-lin Wang Yan-Xiang Sun hui-Qin Zhang Jie-Wei li Quan-hui Mo Ying Zhang xin Lou Hai-Xu peng Ya-Ting Yi He-xin Wang Xiu-Jun Zhang Yi-Bo Wang Dan Wang li li Qiong Zhang Wen-Xia Wang Yongbo liu Lei Gao Jin-hu Wu Yan-Chang Wang CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubeiChina Key Laboratory of Western China’s Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhouGansuChina College of life Sciences University of Chinese Academy of SciencesBeijingChina Wuhan Frasergen Bioinformatics Co. LtdWuhanHubeiChina Institute of Soil and Fertilizer Anhui Academy of Agricultural SciencesHefeiChina College of Agricultural Sciences Xichang UniversityXichangSichuanChina Department of Horticulture Heilongjiang Academy of Agricultural SciencesHarbinHeilongjiangChina College of life Sciences Langfang Normal UniversityLangfangHebeiChina Institute of Horticulture Zhejiang Academy of Agricultural SciencesHangzhouZhejiangChina Guangxi Institute of Botany Chinese Academy of SciencesGuilinGuangxiChina Xi’an Botanical Garden of Shaanxi Province Institute of Botany of Shaanxi ProvinceXi’anShaanxiChina Institute of Modern Agricultural Research Dalian UniversityDalianLiaoningChina Bioinformatics Center College of Plant Science and TechnologyBeijing University of AgricultureBeijingChina College of Agriculture Eastern Liaoning UniversityDandongLiaoningChina Dalian Institute of Chemical Physics Chinese Academy of SciencesDalianLiaoningChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijingChina hubei Hongshan Laboratory WuhanHubeiChina The New Zealand Institute for Plant and Food Research limited AucklandNew Zealand

Actinidia arguta,the most widely distributed Actinidia species and the second cultivated species in the genus,can be distinguished from the currently cultivated Actinidia chinensis on the basis of its small and smooth fruit,rapid softening,and excellent cold *** evolution of tetraploid Actinidia species and the genetic basis of their important agronomic traits are still ***,we generated a chromosome-scale genome assembly of an autotetraploid male *** *** genome assembly was 2.77 Gb in length with a contig N50 of 9.97 Mb and was anchored onto 116 *** and clustering of 101 geographically representative accessions showed that they could be divided into two geographic groups,Southern and Northern,which first diverged 12.9 million years *** underwent two prominent expansions and one demographic bottleneck from the midPleistocene climate transition to the late *** genomics studies using paleoclimate data enabled us to discern the evolution of the species’adaptation to different historical *** genes(AaCEL1,AaPME1,and AaDOF1)related to flesh softening were identified by multi-omics analysis,and their ability to accelerate flesh softening was verified through transient expression assays.A set of genes that characteristically regulate sexual dimorphism located on the sex chromosome(Chr3)or autosomal chromosomes showed biased expression during stamen or carpel *** chromosome-level assembly of the autotetraploid *** genome and the genes related to important agronomic traits will facilitate future functional genomics research and improvement of ***.

关键词： kiwiberry dioecism adaptive evolution paleoclimate GEA rapid softening

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Crohn’s disease as the intestinal manifestation of pan-lymphatic dysfunction:An exploratory proposal based on basic and clinical data

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World Journal of Gastroenterology 2024年第1期30卷 34-49页

作者： Yu-Wei zhou Yue Ren Miao-Miao Lu ling-ling Xu Wei-xin Cheng Meng-Meng Zhang lin-Ping Ding Dong Chen Jian-Guo Gao Juan Du Ci-liang Jin Chun-Xiao Chen Yun-Fei li Tao Cheng peng-Lei Jiang Yi-Da Yang peng-Xu Qian peng-Fei Xu Xi Jin Department of Gastroenterology The First Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310003Zhejiang ProvinceChina Department of Gastroenterology The Second Hospital of JiaxingJiaxing 314000Zhejiang ProvinceChina Endoscopy Center Children’s Hospital of Zhejiang University School of MedicineHangzhou 310003Zhejiang ProvinceChina Department of Gastroenterology The Second People’s Hospital of Yuhang DistrictHangzhou 310000Zhejiang ProvinceChina Department of Gastroenterology Hangzhou Shangcheng District People’s HospitalHangzhou 310003Zhejiang ProvinceChina Department of Colorectal Surgery The First Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310003Zhejiang ProvinceChina Department of Gastroenterology The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000Zhejiang ProvinceChina Women’s Hospital and Institute of Genetics Zhejiang University School of MedicineHangzhou 310000Zhejiang ProvinceChina Center of Stem Cell and Regenerative Medicine and Bone Marrow Transplantation CenterThe First Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310003Zhejiang ProvinceChina Department of Infectious Disease The First Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310003Zhejiang ProvinceChina

Crohn’s disease(CD)is caused by immune,environmental,and genetic *** can involve the entire gastrointestinal tract,and although its prevalence is rapidly increasing its etiology remains *** biological and small-molecule drugs have advanced the treatment of CD;however,a considerable proportion of patients are non-responsive to all known *** achieve a breakthrough in this field,innovations that could guide the further development of effective therapies are of utmost *** this review,we first propose the innovative concept of pan-lymphatic dysfunction for the general distribution of lymphatic dysfunction in various diseases,and suggest that CD is the intestinal manifestation of pan-lymphatic dysfunction based on basic and clinical preliminary *** supporting evidence is fully summarized,including the existence of lymphatic system dysfunction,recognition of the inside-out model,disorders of immune cells,changes in cell plasticity,partial overlap of the underlying mechanisms,and common gut-derived fatty and bile acid *** benefit of this novel concept is that it proposes adopting the zebrafish model for studying intestinal diseases,especially CD,as this model is good at presenting and mimicking lymphatic *** importantly,the ensuing focus on improving lymphatic function may lead to novel and promising therapeutic strategies for CD.

关键词： Inflammatory bowel disease Crohn’s disease Lymphatic system Inside-out model Immune cells Zebrafish

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Achievements and challenges of primate conservation in China

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Zoological Research(Diversity and Conservation) 2024年第1期1卷 66-74页

作者： Bao-Guo li He Zhang Ming li Xue-Long Jiang peng-Fei Fan Jiang zhou Song-Tao Guo Xiao-Guang Qi Jin-hua li Ji-Qi Lu Dong-Po Xia liang-Wei Cui Zuo-Fu Xiang Qi-Hai zhou Zhi-Pang huang Cheng-Ming huang Wen Xiao hui-Jian hu Zhi-xin zhou Ming-Yong Chen Da-Yong li peng-Lai Fan Yin Yang Ru-liang Pan Shaanxi Key Laboratory for Animal Conservation College of Life SciencesNorthwest UniversityXi’anShaanxi 710069China Jiangxi Provincial Key Laboratory of Conservation Biology College of ForestryJiangxi Agricultural UniversityNanchangJiangxi 330045China Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650201China School of life Sciences Sun Yat-sen UniversityGuangzhouGuangdong 510275China School of Karst Science Guizhou Normal UniversityGuiyangGuizhou 550025China International Collaborative Research Center for huangshan Biodiversity and Tibetan Macaque Behavioral Ecology Anhui UniversityHefeiAnhui 230601China Institute of Biodiversity and Ecology Zhengzhou UniversityZhengzhouHenan 450001China Key Laboratory for Conserving Wildlife with Small Populations in Yunnan Southwest Forestry UniversityKunmingYunnan 650224China College of life Sciences and Technology Central South University of Forestry and TechnologyChangshaHunan 410004China Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Ministry of Education) Guangxi Normal UniversityGuilinGuangxi 541004China International Centre of Biodiversity and Primate Conservation Centre Dali UniversityDaliYunnan 671003China Guangdong Key Laboratory of Animal Conservation and Resource Utilization Institute of ZoologyGuangdong Academy of SciencesGuangzhouGuangdong 510663China School of life Sciences Yunnan UniversityKunmingYunnan 650500China Key Laboratory of Southwest China Wildlife Resources Conservation(Ministry of Education) China West Normal UniversityNanchongSichuan 637001China Institute of International Rivers and Eco-security Yunnan UniversityKunmingYunnan 650500China School of human Sciences The University of Western AustraliaPerthWA 6009Australia

The dual impact of climate change and human activities has precipitated a sharp decline in primate biodiversity *** is home to the most diverse primate species in the Northern hemisphere,which face severe ecological threats due to the expansion of modern agriculture,extensive exploitation and consumption of natural resources,and excessive land development during its transition from an agricultural to a modern *** response,China has implemented various ecological conservation measures,including habitat restoration and *** efforts have made substantial strides in biodiversity conservation,with certain regions witnessing an increase in primate *** the current study,we conducted a systematic review of historical documents and field research data related to Chinese primates,evaluating the endangered status of primate species in *** improvements in the habitats of most primate species and some population growth,many species still face severe threats,including declining and small *** such as the Myanmar snub-nosed monkey(Rhinopithecus strykeri),eastern black crested gibbon(Nomascus nasutus),and Hainan gibbon(***)remain particularly vulnerable due to their limited distribution ranges and extremely small *** scientific data,fragmented information,and not enough studies in conservation biology further compound the ***,there is a notable lack of detailed population monitoring data for species such as the Bengal slow loris(Nycticebus bengalensis),pygmy slow loris(***),Indochinese gray langur(Trachypithecus crepusculus),Shortridge’s langur(***),and capped langur(***),which hinders the development of practical and targeted conservation management ***,for national biodiversity conservation,there is an urgent need for specialized primate surveys,enhancing habitat protection and restoration,and increasing focus on cross-border conse

关键词： Primates Biodiversity Habitat fragmentation Habitat restoration Conservation strategies

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Boson star superradiance

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Science China(Physics,Mechanics & Astronomy) 2024年第6期67卷 69-78页

作者： He-Yu Gao Paul M.Saffin Yi-Jie Wang Qi-xin Xie Shuang-Yong zhou School of Physical Sciences University of Science and Technology of ChinaHefei 230026China School of Physics and Astronomy University of NottinghamUniversity ParkNottingham NG72RDUK Interdisciplinary Center for Theoretical Study University of Science and Technology of ChinaHefei 230026China peng huanwu Center for Fundamental Theory Hefei 230026China

Recently,it has been realized that in some systems internal space rotation can induce energy amplification for scattered waves,similar to rotation in real *** particularly,it has been shown that energy extraction is possible for a Q-ball,a stationary non-topological soliton that is coherently rotating in its field *** this paper,we generalize the analysis to the case of boson stars,and show that the same energy extraction mechanism still works for boson stars.

关键词： superradiance boson star field space rotation

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