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A global invasion by the thrip,Frankliniella occidentalis:Current virus vector status and its management

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Insect Science 2020年第4期27卷 626-645页

作者： Zhen He Jing-Fei Guo Stuart RReitz zhong-ren lei Sheng-Yong Wu State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijingChina School of Horticulture and Plant Protection Yangzhou UniversityYangzhouJiangsu ProvinceChina Malheur Experiment Station Oregon State UniversityOntarioORUSA

Western flower thrip,Frankliniella occidentalis(Pergande),is among the most economically important agricultural pests globally,attacking a wide range of vegetable and horticultural *** addition to causing extensive crop damage,the species is notorious for vectoring destructive plant viruses,mainly belonging to the genera Orthotospovirus,*** and *** infected by orthotospoviruses,thrips can remain virulent throughout their lifespan and continue transmitting viruses to host plants when and wherever they *** irruptive viral outbreaks in crops will permanently disrupt functional integrated pest management systems,and typically require a remedial treatment involving insecticides,contributing to further development of insecticide *** mitigate against this continuing cycle,the most effective management is early and comprehensive surveillance of the pest species and recognition of plant viruses in the *** review provides information on the pest status of ***,discusses the current global status of the viruses vectored by this thrip species,examines the mechanisms involved in transmitting virus-induced diseases by thrips,and reviews different management strategies,highlighting the potential management tactics developed for various cropping *** early surveillance and the utilization of potential methods for control of both F occidentalis and viruses are proposed.

关键词： global distribution integrated pest management invasion thrips viruses transmission

Abamectin resistance in strains of vegetable leafminer, Liriomyza sativae （Diptera： Agromyzidae） is linked to elevated glutathione S-transferase activity

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Insect Science 2015年第2期22卷 243-250页

作者： Qing-Bo Wei zhong-ren lei Ralf Nauen Du-Cheng Cai Yu-Lin Gao State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of AgriculturalSciences Beijing Hainan University Haikou 570228 China Bayer CropScience RD-SMR Pest Control Biology 40789 MonheimGermany

Abamectin resistance was selected in the vegetable leafminer, Liriomyza sativae （Blanchard）（Diptera： Agromyzidae） under laboratory conditions, and cross- resistance patterns and possible resistance mechanisms in the abamectin-resistant strains （AL-R, AF-R） were investigated. Compared with the susceptible strain （SS）, strain AL-R displayed 39-fold resistance to abamectin after 20 selection cycles during 25 generations, and strain AF-R exhibited 59-fold resistance to abamectin after 16 selection cycles during 22 generations. No cross-resistance to cyromazine was found in both abamectin-resistant strains. However, we failed to select for cyromazine resistance in L. sativae under laboratory conditions by conducting 17 selection cycles during 22 generations. However, moderate levels of cross-resistance to abamectin （6-9 fold） were observed in strains which received cyromazine treatments. Biochemical analysis showed that glutathione S-transferase （GST） activity in both abamectin-resistant strains （AL-R, AF-R） was significantly higher than in the susceptible strain （SS）, suggesting metabolically driven resistance to abamectinin L. sativae. Recommendations of mixtures or rotation of cyromazine and abamectin should be considered carefully, as consecutive cyromazine treatments may select for low-level cross-resistance to abamectin.

关键词： abamectin cyromazine GST insecticide resistance Liriomyza sativae

Human-induced pluripotent stem cell-derived neural stem cell exosomes improve blood-brain barrier function after intracerebral hemorrhage by activating astrocytes via PI3K/AKT/MCP-1 axis

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Neural Regeneration Research 2025年第2期20卷 518-532页

作者： Conglin Wang Fangyuan Cheng Zhaoli Han Bo Yan Pan Liao Zhenyu Yin Xintong Ge Dai Li Rongrong zhong Qiang Liu Fanglian Chen Ping lei Department of Geriatrics Tianjin Medical University General HospitalTianjinChina School of Medicine Nankai UniversityTianjinChina Tianjin Neurological Institute TianjinChina

Cerebral edema caused by blood-brain barrier injury after intracerebral hemorrhage is an important factor leading to poor ***-induced pluripotent stem cell-derived neural stem cell exosomes(hiPSC-NSC-Exos)have shown potential for brain injury repair in central nervous system *** this study,we explored the impact of hiPSC-NSC-Exos on blood-brain barrier preservation and the underlying *** results indicated that intranasal delivery of hiPSC-NSC-Exos mitigated neurological deficits,enhanced blood-brain barrier integrity,and reduced leukocyte infiltration in a mouse model of intracerebral ***,hiPSC-NSC-Exos decreased immune cell infiltration,activated astrocytes,and decreased the secretion of inflammatory cytokines like monocyte chemoattractant protein-1,macrophage inflammatory protein-1α,and tumor necrosis factor-αpost-intracerebral hemorrhage,thereby improving the inflammatory *** sequencing indicated that hiPSC-NSC-Exo activated the PI3K/AKT signaling pathway in astrocytes and decreased monocyte chemoattractant protein-1 secretion,thereby improving blood-brain barrier *** with the PI3K/AKT inhibitor LY294002 or the monocyte chemoattractant protein-1 neutralizing agent C1142 abolished these *** summary,our findings suggest that hiPSC-NSC-Exos maintains blood-brain barrier integrity,in part by downregulating monocyte chemoattractant protein-1 secretion through activation of the PI3K/AKT signaling pathway in astrocytes.

关键词： AKT astrocyte blood-brain barrier cerebral edema exosomes human-induced pluripotent stem cells intracerebral hemorrhage neural stem cells neuroinflammation PI3K

Preparation and applications of calcium ferrite as a functional material:A review

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 292-310页

作者： Xiuli Han Bowen Duan lei Liu Shilong Fang Weiwei Wang College of Mining Engineering North China University of Science and TechnologyTangshan 063210China Collaborative Innovation Center of Green Development and Ecological Restoration of Mineral Resources of Hebei Province Tangshan 063210China Key Laboratory of Mining Development and Security Technology of Hebei Province Tangshan 063210China

Calcium ferrite(CF)is recognized as a potential green and efficient functional material because of its advantages of magnetism,electrochemistry,catalysis,and biocompatibility in the fields of materials chemistry,environmental engineering,and ***-fore,the obtained research results need to be systematically summarized,and new perspectives on CF and its composite materials need to be *** on the presented studies of CF and its composite materials,the types and structures of the crystal are *** addition,the current application technologies and theoretical mechanisms with various properties in different fields are ***,the various preparation methods of CF and its composite materials are elaborated in *** importantly,the advantages and disadvantages of the synthesis methods of CF and its composite materials are discussed,and the existing problems and emerging challenges in practical production are ***,the key future research directions of CF and its composite materials have been prospected from the potential application technologies to provide references for its synthesis and efficient utilization.

关键词： calcium ferrite mineral functional materials preparation application perspectives

前路微创联合后路病灶清除内固定治疗腰椎结核伴腰大肌脓肿的临床效果分析

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中国医药 2018年第5期13卷 738-740页

作者：许勇官众彭兴国任磊赵宇青海大学附属医院脊柱外科西宁810000

目的探讨前路微创联合后路病灶清除内固定治疗腰椎结核伴腰大肌脓肿的临床效果。方法选取2015年1月至2017年8月青海大学附属医院收治的腰椎结核伴腰大肌脓肿患者25例。所有患者采用前路3～4 cm的小切口微创清除脓肿、引流,再经后路半椎... 详细信息

目的探讨前路微创联合后路病灶清除内固定治疗腰椎结核伴腰大肌脓肿的临床效果。方法选取2015年1月至2017年8月青海大学附属医院收治的腰椎结核伴腰大肌脓肿患者25例。所有患者采用前路3～4 cm的小切口微创清除脓肿、引流,再经后路半椎关节病灶清除、矫形、自体骨植骨内固定。手术前后均给予标准化抗结核治疗,随访患者临床症状、实验室指标及影像学检查情况。结果所有患者随访时间9～38个月,平均(18±3)个月;术后Cobb角0°～13°,平均(5.7±2.6)°,末次随访Cobb角2°～18°,平均(8.8±4.2)°,后凸角度平均丢失(4.6±1.3)°;末次随访时神经功能明显改善,Frankel分级D级3例,E级22例;植骨于随访6～12个月后获得融合,所有患者均未出现结核复发。结论前路微创取髂骨并清除腰大肌脓肿加后路半椎关节病灶清除、矫形、植骨内固定的创伤小,手术时间短,出血少,是一种腰椎结核伴腰大肌脓肿的理想手术方式。

关键词：脊柱结核腰大肌脓肿微创植骨融合内固定

Numerical simulation of EMS position on flow, solidification and inclusion capture in slab continuous casting

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Journal of Iron and Steel Research International 2022年第11期29卷 1807-1822页

作者： Hai-biao Lu Yun-bo zhong zhong-ming ren Wei-li ren Chang-gui Cheng Zuo-sheng lei State Key Laboratory of Advanced Special Steel and Shanghai Key Laboratory of Advanced Ferrometallurgy Shanghai UniversityShanghai 200444China The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan 430081HubeiChina

Electromagnetic stirring(EMS)is a well-known and widely used technology for controlling the fluid flow in continuous casting mold,and therein the selection of stirrer position is closely related to final *** investigate the effect of stirrer position on initial solidification and inclusion capturing,a mathematical model coupling with electromagnetic field,turbulence flow,solidification,and inclusion movement was *** comparing the magnetic flux density,flow field and solidified shell thickness with measured data,the reliability of the mathematical model was *** uniform index has been introduced to judge the uniformity of solidified shell,and the washing effects of EMS on the numbers and distribution of captured inclusions were *** results show that a diagonal jet flow toward the mold wide face has generated when EMS is applied,and upper EMS position can effectively improve the uniformity of temperature and the solidified shell within the ***,due to the washing effect of EMS,the number of inclusions inside the solidified shell decreases,and the distribution of captured inclusions along the mold width changes *** the stirrer position,the uniform index decreases firstly and then increases,and the probability of inclusion capture by solidified shell ***,the upper stirrer position is suggested,with which the uniformity of solidified shell and cleanliness of slab are rational.

关键词： Slab continuous casting EMS position Flow Heat transfer Uniform index Solidified shell Inclusion capture

Multifractal analysis of surface EMG signals for assessing muscle fatigue during static contractions

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第6期8卷 910-915页

作者： WANG Gang ren Xiao-mei LI lei WANG Zhi-zhong Department of Biomedical Engineering Shanghai Jiao Tong University Shanghai 200240 China

This study is aimed at assessing muscle fatigue during a static contraction using multifractal analysis and found that the surface electromyographic （SEMG） signals characterized multiffactality during a static contraction. By applying the method of direct determination ofthef（a） singularity spectrum, the area of the multifractal spectrum of the SEMG signals was computed. The results showed that the spectrum area significantly increased during muscle fatigue. Therefore the area could be used as an assessor of muscle fatigue. Compared with the median frequency （MDF）--the most popular indicator of muscle fatigue, the spectrum area presented here showed higher sensitivity during a static contraction. So the singularity spectrum area is considered to be a more effective indicator than the MDF for estimating muscle fatigue.

关键词： Muscle fatigue Surface electromyographic (SEMG) signals Multifractal Static contraction

Fluorinated poly(p-triphenylene isatin) anion exchange membranes based on hydrophilic hydroxyl side chain modulation for fuel cells

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Journal of Energy Chemistry 2025年第1期100卷 702-709页

作者： Yiman Gu Yanchao Zhang Zhanyu Li Yijia lei Baozeng Sun Xiaoyu Yu Zhe Wang College of Chemistry and Life Science Changchun University of Technology College of Chemical Engineering Changchun University of Technology School of Materials Science and Engineering Changchun University of Technology Key Laboratory of Advanced Functional Polymer Membrane Materials of Jilin Province

The development of alkaline fuel cells is moving forward at an accelerated pace,and the application of ether-free bonded polymers to anion exchange membranes （AEMs） has been widely ***,the question of the“trade-off”between AEM ionic conductivity and dimensional stability remains *** strategy of inducing microphase separation to improve the performance of AEM has attracted much attention recently,but the design of optimal molecular structures is still being ***,this work introduced different ratios of 3-bromo-1,1,1-trifluoroacetone （x=40,50,and 60） into the main chain of poly（p-terphenylene isatin）.Because fluorinated groups have excellent hydrophobicity,hydrophilic hydroxyl-containing side chains are introduced to jointly adjust the formation of phase separation *** results show that PTI-PTF50-NOH AEM with the appropriate fluorinated group ratio has the best ionic conductivity and alkali stability under the combined effect of *** has an ionic conductivity of 133.83 mS cm-1at 80°*** addition,the OH-conductivity remains at 89%of the initial value at 80°C and 3 M KOH for 1056 h of *** cell polarization curve based on PTI-PTF50-NOH shows a power density of 734.76 mW cm-2at a current density of 1807.7 mA cm-2.

关键词： Anion exchange membranes Poly(p-terphenylene isatin) Hydrophilic-hydrophobic phase separation Fluorinated group

Thrips: Pests of Concern to China and the United States

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Agricultural Sciences in China 2011年第6期10卷 867-892页

作者： Smart R Reitz GAO Yu-lin lei zhong-ren Center for Medical Agricultural and Veterinary Entomology Agricultural Research Service United States Department of Agriculture Tallahassee FL 32308 USA State Key Laboratory of Plant Disease and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100193 P.R.China

Thrips are among the most important agricultural pests globally because of the damage inflicted by their oviposition, feeding, and ability to transmit plant viruses. Because of their invasiveness, a number of pest species are common to both China and the United States and present significant challenges to growers of a wide range of crops in both countries. Among the pest thrips common to both countries are four of the major global thrips pests, Frankliniella occidentalis （Pergande）, Scirtothrips dorsalis Hood, Thrips palmi Karny, and Thrips tabaci Lindeman. This review addresses characteristics that enable thrips to be such damaging pests and how biological attributes of thrips create challenges for their management. Despite these challenges, a number of successful management tactics have been developed for various cropping systems. We discuss some of these tactics that have been developed, including the use of cultural controls, biological controls, and judicious use of insecticides that do not disrupt overall pest management programs. The exchange of this type of information will help to facilitate management of pest thrips, especially in regions where species have recently invaded. A prime example is F. occidentalis, the western flower thrips, which is native to the United States, but has recently invaded China. Therefore, management tactics developed in the United States can be adapted to China. Because further success in management of thrips requires a thorough understanding of thrips ecology, we discuss areas of future research and emphasize the importance of collaboration among different countries to enhance our overall understanding of the biology and ecology of thrips and to improve management programs for these widespread pests.

关键词： Frankliniella Scirtothrips Thrips Tospovirus behavioral ecology pest status integrated pest management