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Transdiagnostic considerations of mental health for the post-COVID era:Lessons from the first surge of the pandemic
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作者 Sari Goldstein ferber Gal Shoval +5 位作者 Rodolfo Rossi Viviana Trezza Giorgio Di Lorenzo Gil Zalsman Aron Weller J John Mann 《World Journal of Clinical Cases》 SCIE 2023年第4期809-820,共12页
BACKGROUND The Coronavirus disease 19(COVID-19)-related psychiatric burden partly results from prolonged social stress world-wide.Studies have examined the psychiatric impact of COVID-19 on Diagnostic and Statistical ... BACKGROUND The Coronavirus disease 19(COVID-19)-related psychiatric burden partly results from prolonged social stress world-wide.Studies have examined the psychiatric impact of COVID-19 on Diagnostic and Statistical Manual of Mental Disorders,Fifth Edition(DSM 5)and International Classification of Diseases 11th Revision(ICD-11)categories,implicating multiple diagnoses,complicating clinical management.AIM To verify whether COVID-19-related psychopathology spans multiple DSM-5 and ICD-11 diagnoses,but not in a random pattern.Consequently,empirical analysis of the multiple associated symptoms will better describe COVID-19-related psychopathology.METHODS We conducted a bi-national study during the first surge of the pandemic:an Italian sample(n=21217,studied March-April 2020);and three representative longitudinal samples from Israel(n=1276,1189,and 1432 respectively,studied May-July 2020).Data in Italy were collected by a national internet-based survey with an initially approached sample of about one million persons and in Israel by the Israeli Central Bureau of Statistics using probability-based national representative sampling.Data analysis focused on the frequency and patterns of reported multiple mental health symptoms.RESULTS Combinations with all symptoms were more prevalent than combinations with fewer symptoms,with no majorities-minorities differences in both countries,demonstrating the generalizability of the transdiagnostic pattern of mental health issues in both nations.A history of previous mental disorder(Italian study)and an increase in symptom prevalence over time(Israel study)were associated with an increased number of symptoms.Conclusions:Based on finding correlated symptom diversity spanning conventional diagnostic categories,we suggest that the pattern of mental health issues associated with the COVID-19 pandemic is transdiagnostic.CONCLUSION The findings have implications for improving prevention and treatment of COVID-19 related psychopathology and for post-pandemic times in conditions resulting 展开更多
关键词 Post-COVID-19 Diagnosis Stress Mental disorders Transdiagnosis Reactive psychiatric disorders
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A data directory to facilitate investigations on worldwide wildlife trafficking
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作者 Meredith L.Gore Rowan Hilend +5 位作者 Jonathan OPrell Emily Griffin John R.Macdonald Burcu B.Keskin Aaron ferber Bistra Dilkina 《Big Earth Data》 EI CSCD 2023年第2期338-348,共11页
Wildlife trafficking is a global phenomenon posing many negative impacts on socio-environmental systems.Scientific exploration of wildlife trafficking trends and the impact of interventions is significantly encumbered... Wildlife trafficking is a global phenomenon posing many negative impacts on socio-environmental systems.Scientific exploration of wildlife trafficking trends and the impact of interventions is significantly encumbered by a suite of data reuse challenges.We describe a novel,open-access data directory on wildlife trafficking and a corresponding visualization tool that can be used to identify data for multiple purposes,such as exploring wildlife trafficking hotspots and convergence points with other crime,discovering key drivers or deterrents of wildlife trafficking,and uncovering structural patterns.Keyword searches,expert elicitation,and peer-reviewed publications were used to search for extant sources used by industry and non-profit organizations,as well as those leveraged to publish academic research articles.The open-access data directory is designed to be a living document and searchable according to multiple measures.The directory can be instrumental in the data-driven analysis of unsustainable illegal wildlife trade,supply chain structure via link prediction models,the value of demand and supply reduction initiatives via multi-item knapsack problems,or trafficking behavior and transportation choices via network interdiction problems. 展开更多
关键词 Illegal wildlife trade supply chain operations management interdiction CONSERVATION
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Measurement of the integrated luminosity of the Phase 2 data of the Belle Ⅱ experiment 被引量:2
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作者 F.Abudinén I.Adachi +133 位作者 P.Ahlburg H.Aihara N.Akopov A.Aloisio F.Ameli L.Andricek N.Anh Ky D.M.Asner H.Atmacan T.Aushev V.Aushev T.Aziz K.Azmi V.Babu S.Baehr S.Bahinipati A.M.Bakich P.Bambade Sw.Banerjee S.Bansal V.Bansal M.Barrett J.Baudot A.Beaulieu J.Becker P.K.Behera J.V.Bennett E.Bernieri F.U.Bernlochner M.Bertemes M.Bessner S.Bettarini V.Bhardwaj F.Bianchi T.Bilka S.Bilokin D.Biswas G.Bonvicini A.Bozek M.Bračko P.Branchini N.Braun T.E.Browder A.Budano S.Bussino M.Campajola L.Cao G.Casarosa C.Cecchi D.Červenkov M.-C.Chang P.Chang R.Cheaib V.Chekelian Y.Q.Chen Y.-T.Chen B.G.Cheon K.Chilikin H.-E.Cho K.Cho S.Cho S.-K.Choi S.Choudhury D.Cinabro L.Corona L.M.Cremaldi S.Cunliffe T.Czank F.Dattola E.De La Cruz-Burelo G.De Nardo M.De Nuccio G.De Pietro R.de Sangro M.Destefanis S.Dey A.De Yta-Hernandez F.Di Capua S.Di Carlo J.Dingfelder Z.Doležal I.Domínguez Jiménez T.V.Dong K.Dort S.Dubey S.Duell S.Eidelman M.Eliachevitch T.ferber D.Ferlewicz G.Finocchiaro S.Fiore A.Fodor F.Forti A.Frey B.G.Fulsom M.Gabriel E.Ganiev M.Garcia-Hernandez R.Garg A.Garmash V.Gaur A.Gaz U.Gebauer A.Gellrich J.Gemmler T.Geßler R.Giordano A.Giri B.Gobbo R.Godang P.Goldenzweig B.Golob P.Gomis P.Grace W.Gradl E.Graziani D.Greenwald C.Hadjivasiliou S.Halder K.Hara T.Hara O.Hartbrich K.Hayasaka H.Hayashii C.Hearty M.T.Hedges I.Heredia de la Cruz M.Hernández Villanueva A.Hershenhorn T.Higuchi E.C.Hill H.Hirata M.Hoek 《Chinese Physics C》 SCIE CAS CSCD 2020年第2期1-12,共12页
From April to July 2018,a data sample at the peak energy of the T(4 S) resonance was collected with the Belle Ⅱ detector at the SuperKEKB electron-positron collider.This is the first data sample of the Belle Ⅱ exper... From April to July 2018,a data sample at the peak energy of the T(4 S) resonance was collected with the Belle Ⅱ detector at the SuperKEKB electron-positron collider.This is the first data sample of the Belle Ⅱ experiment.Using Bhabha and digamma events,we measure the integrated luminosity of the data sample to be(496.3±0.3±3.0) pb-1,where the first uncertainty is statistical and the second is systematic.This work provides a basis for future luminosity measurements at Belle Ⅱ. 展开更多
关键词 LUMINOSITY Bhabha digamma Belle II
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Does COVID-19 related symptomatology indicate a transdiagnostic neuropsychiatric disorder?-Multidisciplinary implications
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作者 Sari Goldstein ferber Gal Shoval +1 位作者 Gil Zalsman Aron Weller 《World Journal of Psychiatry》 SCIE 2022年第8期1004-1015,共12页
The clinical presentation that emerges from the extensive coronavirus disease 2019(COVID-19)mental health literature suggests high correlations among many conventional psychiatric diagnoses.Arguments against the use o... The clinical presentation that emerges from the extensive coronavirus disease 2019(COVID-19)mental health literature suggests high correlations among many conventional psychiatric diagnoses.Arguments against the use of multiple comorbidities for a single patient have been published long before the pandemic.Concurrently,diagnostic recommendations for use of transdiagnostic considerations for improved treatment have been also published in recent years.In this review,we pose the question of whether a transdiagnostic mental health disease,including psychiatric and neuropsychiatric symptomology,has emerged since the onset of the pandemic.There are many attempts to identify a syndrome related to the pandemic,but none of the validated scales is able to capture the entire psychiatric and neuropsychiatric clinical presentation in infected and non-infected individuals.These scales also only marginally touch the issue of etiology and prevalence.We suggest a working hypothesis termed Complex Stress Reaction Syndrome(CSRS)representing a global psychiatric reaction to the pandemic situation in the general population(Type A)and a neuropsychiatric reaction in infected individuals(Type B)which relates to neurocognitive and psychiatric features which are part(excluding systemic and metabolic dysfunctions)of the syndrome termed in the literature as long COVID.We base our propositions on multidisciplinary scientific data regarding mental health during the global pandemic situation and the effects of viral infection reviewed from Google Scholar and PubMed between February 1,2022 and March 10,2022.Search inclusion criteria were“mental health”,“COVID-19”and“Long COVID”,English language and human studies only.We suggest that this more comprehensive way of understanding COVID-19 complex mental health reactions may promote better prevention and treatment and serve to guide implementation of recommended administrative regulations that were recently published by the World Psychiatric Association.This review may serve as a call f 展开更多
关键词 Mental health SYMPTOMS COMORBIDITY Long COVID Fatigue TRANSDIAGNOSTIC
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BelleⅡ上缪子成对产生过程中电荷不对称性精确测量的展望(英文)
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作者 ferber T. SHWARTZ B. 《中国科学技术大学学报》 CAS CSCD 北大核心 2016年第6期476-480,共5页
由于光子和Z玻色子在领头阶即已存在干涉,导致电子-正电子在淹没产生缪子对的过程中前后不对称.超级B工厂对这个不对称值(AFB)的精确测量会严格限制新物理学效应.即使在B工厂运行在10 GeV质心能量,测得AFB≈0.01.我们也期待BelleⅡ实验... 由于光子和Z玻色子在领头阶即已存在干涉,导致电子-正电子在淹没产生缪子对的过程中前后不对称.超级B工厂对这个不对称值(AFB)的精确测量会严格限制新物理学效应.即使在B工厂运行在10 GeV质心能量,测得AFB≈0.01.我们也期待BelleⅡ实验巨大统计量的高精度结果.本文简要描述了研究前景以及要得到精确结果面临的困难. 展开更多
关键词 正负电子对撞机 缪子对产生 前后不对称性 探测器 蒙特卡洛模拟
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Wine's Benefit Knows No Color
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作者 Dan ferber 褚洪涛 《当代外语研究》 2006年第11期11-12,共2页
在保护心血管方面,红葡萄酒一般被认为要比将葡萄去皮酿造的白葡萄酒要好。最近,科学家以老鼠为试验对象,在老鼠的日常饮食中分别加入葡萄皮,葡萄果肉,或者糖水,连续喂养30天,之后进行模拟老鼠心脏病发作的实验。研究发现,喂食葡萄皮和... 在保护心血管方面,红葡萄酒一般被认为要比将葡萄去皮酿造的白葡萄酒要好。最近,科学家以老鼠为试验对象,在老鼠的日常饮食中分别加入葡萄皮,葡萄果肉,或者糖水,连续喂养30天,之后进行模拟老鼠心脏病发作的实验。研究发现,喂食葡萄皮和葡萄果肉的老鼠,心脏肌肉在心脏病发作时大约会损害20%,不过喂食糖水的老鼠心脏肌肉细胞损害的程度大约为35%。他们得出结论认为,不论葡萄皮或葡萄果肉对保护心脏细胞都有益处。然而,关于葡萄果肉是如何保护心脏的,则尚无定论。 展开更多
关键词 葡萄果肉 葡萄皮 心脏病发作 保护 心脏血管 糖水 红葡萄酒 肌肉细胞 白葡萄酒 心血管
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用于3D DMO的一种滤波、延迟和扩展技术
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作者 R. -G. ferber 邵瑛 《石油物探译丛》 1992年第6期39-50,共12页
倾角时差的计算需要沿着震源-接收器轴线扩展每一个输入道的振幅,再将结果叠加为一个3D零偏移距数据体。从计算时间上考虑,DMO算子的偏移距一旅行时(x—t)域积分过程是非常有效的,但是有算子假频化的缺点。利用时间轴对数变换迫使DMO算... 倾角时差的计算需要沿着震源-接收器轴线扩展每一个输入道的振幅,再将结果叠加为一个3D零偏移距数据体。从计算时间上考虑,DMO算子的偏移距一旅行时(x—t)域积分过程是非常有效的,但是有算子假频化的缺点。利用时间轴对数变换迫使DMO算子为时间不变量的对数展开法,能够避免频率-波数(f-k)域中直接积分过程产生的算子假频化。本文将提出一种在x—logt域中用f-k法的去假频滤波器代替对数展开DMO校正的新技术。按照惯例,在f-k域中设计并应用了表示DMO算子的2D滤波器。新技术使用了一个用于单道输入/多道输出模式的2D褶积滤波器,每个单输入道必须通过几个ID滤波器才能产生该道的全部DMO响应。所得到的记录道能够在3D数据体内直接叠加。单道滤波器是采用一种将2D问题简化为ID问题的滤波器设计技术设计的,这些滤波器能被分解为代表DMO算子运动学和动力学特性的一个单纯的时间延迟和一个低通滤波器。低通滤波器避免了任何易发生的算子假频化。不同类型的低通滤波器可用来获得DMO算子的不同AVO特征。 展开更多
关键词 DMO法 校正 滤波 延迟 扩展
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分娩疼痛变化影响产妇的后期处理
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作者 ferber S.G. Granot M. +1 位作者 Zimmer E.Z. 朱国栋 《世界核心医学期刊文摘(妇产科学分册)》 2005年第7期14-15,共2页
Objective: The purpose of this study was to evaluate the impact of labor pain intensity and labor pain catastrophizing on maternity blues and postpartum social functioning. Study design: Pain intensity and pain catast... Objective: The purpose of this study was to evaluate the impact of labor pain intensity and labor pain catastrophizing on maternity blues and postpartum social functioning. Study design: Pain intensity and pain catastrophizing were assessed in 89 women in active labor before the administration of analgesia. Both these measures were assessed again retrospectively 2 days after delivery in 82 women who had a spontaneous vaginal delivery. Women also filled out the Edinburgh Postnatal Depression Scale. Six weeks later women completed the social functioning domain of the short form SF36 health survey. Results: Pain catastrophizing during labor significantly predicted both maternity blues (P =. 001) and postpartum social functioning (P =. 001) when being controlled for maternal age and education, parity, type of analgesia, and labor pain intensity. Low level of education and younger age also contributed to the prediction of maternity blues and social functioning. Conclusion: Labor pain catastrophizing rather than labor pain intensity predicts postpartum maternal adjustments. 展开更多
关键词 分娩疼痛 产程活跃期 社会功能 疼痛强度 阴道自然分娩 产后抑郁 功能部分 产后处理 回顾性评价 测评量表
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Not one thing at a time:When concomitant multiple stressors produce a transdiagnostic clinical picture
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作者 Sari Goldstein ferber Gal Shoval +1 位作者 Aron Weller Gil Zalsman 《World Journal of Psychiatry》 SCIE 2023年第7期402-408,共7页
A condition of exposure to multiple stressors resulting in a mixed clinical picture spanning conventional categories without meeting any of them in full,encompasses a risk for a list of comorbidities preventing approp... A condition of exposure to multiple stressors resulting in a mixed clinical picture spanning conventional categories without meeting any of them in full,encompasses a risk for a list of comorbidities preventing appropriate prevention and treatment.New transformative transdiagnostic approaches suggest changes spanning conventional categories.They base their systems of classification on biomarkers as well as on brain structural and functional dysregulation as associated with behavioral and emotional symptoms.These new approaches received critiques for not being specific enough and for suggesting a few biomarkers for psychopathology as a whole.Therefore,they put the value of differential diagnosis at risk of avoiding appropriate derived prevention and treatment.Multiplicity of stressors has been considered mostly during and following catastrophes,without considering the resulting mixed clinical picture and life event concomitant stressors.We herewith suggest a new category within the conventional classification systems:The Complex Stress Reaction Syndrome,for a condition of multiplicity of stressors,which showed a mixed clinical picture for daily life in the post coronavirus disease 2019 era,in the general population.We argue that this condition may be relevant to daily,regular life,across the lifespan,and beyond conditions of catastrophes.We further argue that this condition may worsen without professional care and it may develop into a severe mental health disorder,more costly to health systems and the suffering individuals.Means for derived prevention and treatment are discussed. 展开更多
关键词 TRANSDIAGNOSTIC Multiple stressors Clinical picture PREVENTION Treatment Interpersonal psychotherapy Cognitive behavioral therapy
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International study of the Complex Stress Reaction Syndrome:Implications for transdiagnostic clinical practice
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作者 Sari Goldstein ferber Aron Weller +15 位作者 Adele M Hayes Tracy D Vannorsdall Yaroup Ajlouni Mo'nes Qudah Gil Zalsman Gal Shoval Tommaso Benedetto Jannini Racquel Fiedler Lily X Chen Danielle R Shayani Elin Kachuki Dory Dana Stolowicz-Melman Connor Evans Megan Trow Giorgio Di Lorenzo Rodolfo Rossi 《World Journal of Psychiatry》 SCIE 2023年第10期803-815,共13页
BACKGROUND The debate regarding diagnostic classification systems in psychiatry(categorial vs dimensional systems)has essential implications for the diagnosis,prevention and treatment of stress reactions.We previously... BACKGROUND The debate regarding diagnostic classification systems in psychiatry(categorial vs dimensional systems)has essential implications for the diagnosis,prevention and treatment of stress reactions.We previously found a unique pattern of stress reaction in a study executed during the coronavirus disease 2019 pandemic using large representative samples in two countries,and termed it the Complex Stress Reaction Syndrome(CSRS).AIM To investigate CSRS,Type A(psychiatric symptoms,spanning anxiety,depression,stress symptoms,and posttraumatic stress disorder(PTSD)),with or without long-coronavirus disease(COVID)residuals(CSRS,Type B,neuropsychiatric symptoms spanning cognitive deficits and fatigue,excluding systemic symptoms).Our two-tailed hypothesis was that CSRS is a condition related to an unrecognized type of stress reaction in daily life in the general population(Type A)or that it is related to the severe acute respiratory syndrome coronavirus 2 infection and its long-COVID residuals(Type B).METHODS 977 individuals in four continents(North America,Europe,Australia and the Middle East)completed the online study questionnaire in six languages using the Qualtrics platform.The study was managed by six teams in six countries that promoted the study on social media.The questionnaire assessed anxiety,depression,stress symptoms and PTSD(CSRS,Type A),cognitive deficits and fatigue(CSRS,Type B).The data were analyzed using Proportion Analyses,Multivariate Analysis of Co-Variance(MANCOVA),linear regression analyses and validated clinical cutoff points.RESULTS The results of the Proportion Analyses showed that the prevalence of 4 symptoms spanning anxiety,depression,stress symptoms,and PTSD was significantly higher than the most prevalent combinations of fewer symptoms across 4 continents,age groups,and gender.This supports the transdiagnostic argument embedded in the CSRS(Type A).The same pattern of results was found in infected/recovered individuals.The prevalence of the 4 psychiatric symptoms combination was signific 展开更多
关键词 TRANSDIAGNOSTIC Complex Stress Reaction Syndrome Stress reactivity Affective disorders Debate in psychiatry
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Free-surface velocity measurements of opaque materials in laser-driven shock-wave experiments using photonic Doppler velocimetry 被引量:2
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作者 N.Nissim E.Greenberg +7 位作者 M.Werdiger Y.Horowitz L.Bakshi Y.ferber B.Glam A.Fedotov-Gefen L.Perelmutter S.Eliezer 《Matter and Radiation at Extremes》 SCIE CAS CSCD 2021年第4期43-50,共8页
We present a novel photonic Doppler velocimetry(PDV)design for laser-driven shock-wave experiments.This PDV design is intended to provide the capability of measuring the free-surface velocity of shocked opaque materia... We present a novel photonic Doppler velocimetry(PDV)design for laser-driven shock-wave experiments.This PDV design is intended to provide the capability of measuring the free-surface velocity of shocked opaque materials in the terapascal range.We present measurements of the free-surface velocity of gold for as long as∼2 ns from the shock breakout,at pressures of up to∼7 Mbar and a free-surface velocity of 7.3 km/s with an error of∼1.5%.Such laboratory pressure conditions are achieved predominantly at high-intensity laser facilities where the only velocity diagnostic is usually line-imaging velocity interferometry for any reflector.However,that diagnostic is limited by the lower dynamic range of the streak camera(at a temporal resolution relevant to laser shock experiments)to measure the free-surface velocity of opaque materials up to pressures of only∼1 Mbar.We expect the proposed PDV design to allow the free-surface velocity of opaque materials to be measured at much higher pressures. 展开更多
关键词 shock wave INTERFEROMETRY
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Classification of higher- and lower-mileage runners based on running kinematics 被引量:1
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作者 Christian A.Clermont Angkoon Phinyomark +1 位作者 Sean T.Osis Reed ferber 《Journal of Sport and Health Science》 SCIE 2019年第3期249-257,共9页
Background: Running-related overuse injuries can result from the combination of extrinsic(e.g., running mileage) and intrinsic risk factors(e.g.,biomechanics and gender), but the relationship between these factors is ... Background: Running-related overuse injuries can result from the combination of extrinsic(e.g., running mileage) and intrinsic risk factors(e.g.,biomechanics and gender), but the relationship between these factors is not folly understood. Therefore, the first purpose of this study was to determine whether we could classify higher-and lower-mileage runners according to differences in lower extremity kinematics during the stance and swing phases of running gait. I he second purpose was to subgroup the runners by gender and determine whether we could classify higherand lower-mileage runners in male and female subgroups.Methods: Participants were allocated to the "higher-mileage" group(≥32 km/week; n= 41(30 females)) or to the "lower-mileage" group(≤25 km;n= 40(29 females)). Three-dimensional kinematic data were collected during 60 s of treadmill running at a self-selected speed(2.61 ± 0.23 m/s).A support vector machine classifier identified kinematic differences between higher-and lower-mileage groups based on principal component scores.Results: Higher-and lower-mileage runners(both genders) could be separated with 92.59% classification accuracy. When subgrouping by gender,higher-and lower-mileage female runners could be separated with 89.83% classification accuracy, and higher-and lower-mileage male runners could be separated with 100% classification accuracy.Conclusion: These results demonstrate there are distinct kinematic differences between subgroups related to both mileage and gender, and that these factors need to be considered in future research. 展开更多
关键词 BIOMECHANICS Clinical BIOMECHANICS Gait ANALYSIS KINEMATICS Motion analysis:Running MILEAGE Running SUBGROUPS
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Field Trials of CpGV Virus Isolates Overcoming Resistance to CpGV-M
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作者 M. Berling J. -B. Rey +5 位作者 S. -J. Ondet Y. Tallot O. Soubabère A. Bonhomme B. Sauphanor M. Lopez-ferber 《Virologica Sinica》 SCIE CAS CSCD 2009年第5期470-477,共8页
The Cydia pomonella granulovirus (CpGV) has been used for many years as biological agent for codling moth control in apple orchards. Resistance to the Mexican strain of CpGV was detected in orchards in Germany, France... The Cydia pomonella granulovirus (CpGV) has been used for many years as biological agent for codling moth control in apple orchards. Resistance to the Mexican strain of CpGV was detected in orchards in Germany, France and Italy. A laboratory insect colony was started from insects collected in a French resistant orchard. It was named RGV. Various virus isolates were identified as active against this resistant insect colony. Field tests were carried out in 2007 to test if the two virus isolates CpGV-I12 and NPP-R1 were effective in the field. Although these virus isolates were not able to reduce insect caused fruit damages, they significantly reduced the overwintering insect populations. NPP-R1 was subjected to eight passages on RGV larvae (NPP-R1.8) that improved its biological activity on RGV larvae. 2008 field trials were set up to test this improved virus strain, compared to CpGV-I12 and Madex plus active on RGV. These tests confirmed the ability to control both in susceptible and resistant insect populations. 展开更多
关键词 Cydia pomonella Codling moth Biological control Genotype selection Field trials
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快乐的朋友
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作者 Jeannie J.ferber 文文 《海外英语》 2007年第1期66-68,共3页
  [1]弗拉基米尔极有可能天生爱笑.在逐渐了解他数年后,我得知他不仅慷慨大笑,而且一点也不担心你可能会拿走比你应该得到的更多东西而他或许会吃亏.的确,他经常会没有明显原因而大声笑起来,给人留下印象的是他的笑声,而非他本人.当...   [1]弗拉基米尔极有可能天生爱笑.在逐渐了解他数年后,我得知他不仅慷慨大笑,而且一点也不担心你可能会拿走比你应该得到的更多东西而他或许会吃亏.的确,他经常会没有明显原因而大声笑起来,给人留下印象的是他的笑声,而非他本人.当他在喝一碗汤的过程中、站着排队或在汽车站的时候,他都有可能会大声笑起来.…… 展开更多
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Femtosecond laser-induced damage threshold in snow micro-structured targets
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作者 O.Shavit Y.ferber +4 位作者 J.Papeer E.Schleifer M.Botton A.Zigler Z.Henis 《High Power Laser Science and Engineering》 SCIE CAS CSCD 2018年第1期38-43,共6页
Enhanced acceleration of protons to high energy by relatively modest high power ultra-short laser pulses, interacting with snow micro-structured targets was recently proposed. A notably increased proton energy was att... Enhanced acceleration of protons to high energy by relatively modest high power ultra-short laser pulses, interacting with snow micro-structured targets was recently proposed. A notably increased proton energy was attributed to a combination of several mechanisms such as localized enhancement of the laser field intensity near the tip of 1 μm size whisker and increase in the hot electron concentration near the tip. Moreover, the use of mass-limited target prevents undesirable spread of absorbed laser energy out of the interaction zone. With increasing laser intensity a Coulomb explosion of the positively charged whisker will occur. All these mechanisms are functions of the local density profile and strongly depend on the laser pre-pulse structure. To clarify the effect of the pre-pulse on the state of the snow micro-structured target at the time of interaction with the main pulse, we measured the optical damage threshold(ODT) of the snow targets. ODT of 0.4 J/cm^2 was measured by irradiating snow micro-structured targets with 50 fs duration pulses of Ti:Sapphire laser. 展开更多
关键词 high intensity laser ion acceleration optical damage threshold
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多炮检距偏移与速度分析
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作者 R.-G.ferber 路艳 《国外油气勘探》 北大核心 1995年第2期223-230,共8页
叠加速度最佳地表示了共中心点道集正常时差曲线的特性,而偏移速度则表示零炮检距剖面和共中心点道集的绕射曲线特性。对于水平层状介质来说,由于其法向射线与成像射线一致,所以这两种速度是相同的。在倾斜地下构造的情况下,叠加速度取... 叠加速度最佳地表示了共中心点道集正常时差曲线的特性,而偏移速度则表示零炮检距剖面和共中心点道集的绕射曲线特性。对于水平层状介质来说,由于其法向射线与成像射线一致,所以这两种速度是相同的。在倾斜地下构造的情况下,叠加速度取决于反射面的倾角,并与法向射线有关,但是反射点的横向分散(模糊性)与倾角有关。经倾角时差校正后,叠加速度降低了,而反射点分散现象消失,射线聚焦于共反射点上。对于均匀介质来说,倾角时差校正与实际速度无关,并且可在速度分析之前用作多炮检距的倾角时差校正。多炮检距偏移是一种叠前时间偏移技术,它给出酷似高次叠加、面元中心调整的共中心点道集的数据集。该方法不受速度制约,并可偏移具有任意采集观测系统的任何二维或三维数据集。所产生的道集可采用诸如解释多速度函数叠加的传统方法分析正常时差速度。无论怎样,这些叠加均与多速度函数时间偏移相同,导出的速度即偏移速度。 展开更多
关键词 速度分析 叠前偏移 地震勘探 炮检距
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Entry into Midgut Epithelial Cells is a Key Step in the Selection of Genotypes in a Nucleopolyhedrovirus
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作者 Gabriel Clavijo Trevor Williams +2 位作者 Delia Muoz Miguel López-ferber Primitivo Caballero 《Virologica Sinica》 SCIE CAS CSCD 2009年第4期350-358,共9页
An isolate of the Spodoptera frugiperda multiple nucleopolyhedrovirus comprises a stable proportion of deletion genotypes (e.g., SfNIC-C), that lack pifl and pif2 rendering them noninfectious per os, and that surviv... An isolate of the Spodoptera frugiperda multiple nucleopolyhedrovirus comprises a stable proportion of deletion genotypes (e.g., SfNIC-C), that lack pifl and pif2 rendering them noninfectious per os, and that survive by complementation with a complete genotype (SfNIC-B) in coinfected cells. To determine whether selection for particular ratios of complete and deletion genotypes occurs mainly during the establishment of the primary infection in insect midgut cells or during subsequent systemic infection, we examined genotype frequencies in insects that fed on OBs comprising different co-occluded mixtures of genotypes. Dramatic changes in genotype frequencies were observed between the OB inoculum and budded virus (BV) samples taken from larvae inoculated with OBs comprising 10% SfNIC-B + 90% SfNIC-C indicating that a marked reduction of SfNIC-C genotype had occurred in the insect midgut due to the immediate elimination of all OBs that originated from cells that had been infected only by SfNIC-C. In contrast, immediate changes were not observed in OBs comprising mixtures of 50% SfNIC-B + 50% SfNIC-C or those comprising 10% SfNIC-B + 90% SfNIC-C as most of the OBs in these mixtures originated from cells that had been infected by both genotypes. Subsequent changes in genotypic frequencies during five days of systemic infection were fairly small in magnitude for all genotypic mixtures. We conclude that the prevalence of defective genotypes in the SfNIC population is likely determined by a balance between host selection against OBs produced in cells infected by SfNIC-C alone and within-host selection for fast-replicating deletion genotypes. The strength of intra-host selection is likely modulated by changes in MOI during the infection period. 展开更多
关键词 Nucleopolyhedrovirus Defective genotypes Infection SELECTION
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与癌症治疗副作用抗衡的新疗法 被引量:1
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作者 Dan ferber 李伟 《世界科学》 2000年第1期32-32,共1页
几十年来,内科医生一直用化疗和放疗方法治疗癌症,而这些方法的副作用也一直困扰着人们。因为这些疗法在杀伤肿瘤细胞的同时也损伤了健康组织,病人会出现贫血、感染、呕吐、腹泻和其他症状。现在,由于一种强效肿瘤抑制基因的发现,... 几十年来,内科医生一直用化疗和放疗方法治疗癌症,而这些方法的副作用也一直困扰着人们。因为这些疗法在杀伤肿瘤细胞的同时也损伤了健康组织,病人会出现贫血、感染、呕吐、腹泻和其他症状。现在,由于一种强效肿瘤抑制基因的发现,研究人员发现了一种降低副作用的方法。 展开更多
关键词 癌症 治疗 副作用 化学疗法
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一个高选择性的强效口服醛固酮合成酶(CYP11B2)抑制剂的临床研究
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作者 Bogman K Schwab D +8 位作者 Delporte ML Palermo G Amrein K Mohr S De Vera Mudry MC Brown MJ ferber P 赵狄 练桂丽 《中华高血压杂志》 CAS CSCD 北大核心 2016年第12期1199-1199,共1页
原发性醛固酮增多症是难治性高血压的一个常见原因。醛固酮合成酶(aldosterone synthase,AS,由CYP11B2基因编码)在肾上腺合成醛固酮。AS与负责皮质醇生成的11β-羟化酶(由CYP11B1基因编码)有93%同源性。此同源性阻碍了原发性醛固酮... 原发性醛固酮增多症是难治性高血压的一个常见原因。醛固酮合成酶(aldosterone synthase,AS,由CYP11B2基因编码)在肾上腺合成醛固酮。AS与负责皮质醇生成的11β-羟化酶(由CYP11B1基因编码)有93%同源性。此同源性阻碍了原发性醛固酮增多症的新治疗药物(可选择性抑制醛固酮但不影响皮质醇生成)的研发。 展开更多
关键词 醛固酮合成酶 临床研究 高选择性 原发性醛固酮增多症 抑制剂 CYP11B2 口服 难治性高血压
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Lynch综合征患者hMLH1和hMSH2基因数量变化的特征
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作者 Baudhuin L.M. ferber M.J. +2 位作者 Winters J.L. S.N. Thibodeau 陈云茹 《世界核心医学期刊文摘(胃肠病学分册)》 2006年第2期35-35,共1页
Background & Aims: A significant proportion of Lynch syndrome cases are believed to be due to large genomic alterations in the mismatch repair genes hMLH1 and hMSH2. However, previous studies have not adequately i... Background & Aims: A significant proportion of Lynch syndrome cases are believed to be due to large genomic alterations in the mismatch repair genes hMLH1 and hMSH2. However, previous studies have not adequately identified the frequency and scope of such mutations, and routine clinical Lynch syndrome testing often does not include analysis for these mutations. Our aim was to characterize hMLH1 and hMSH2 genomic rearrangements in a large population of suspected Lynch syndrome patients. Methods: A total of 365 samples from probands referred for genetic testing for Lynch syndrome were analyzed for the presence of large genomic alterations in hMLH1 or hMSH2 by using a combination of techniques. Samples with a deletion in exons 1- 6 in hMSH2 were further characterized by polymerase chain reaction to establish the presence of the hMSH2 American founder deletion. Results: An hMLH1 or hMSH2 mutation was identified in 153 cases, and, of these, 12 of 67 (17.9% ) and 39 of 86 (45.3% ) had a large genomic alteration in hMLH1 and hMSH2, respectively. Overall, 6 different hMLH1 and 12 different hMSH2 deletions/ duplications, including 10 novel mutations, were identified. Analysis of the hMSH2 exon 1- 6 deletion samples showed that 13 of 18 (72.2% ) had the American founder deletion. Conclusions: These data show a high frequency and diverse spectrum of large genomic alterations in hMLH1 and hMSH2 in suspected Lynch syndrome patients. Thus, a comprehensive mutation identification strategy that includes the ability to detect large genomic rearrangements is imperative for the clinical genetic identification of Lynch syndrome patients and families. 展开更多
关键词 LYNCH HMLH1 HMSH2 基因数量 先证者 错配修复基因 标本分析 聚合酶链反应 基因重排
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