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Heterosis effect for larval performance of fall armyworm interstrain hybrids

Insect Science 2024年第4期31卷 1296-1312页

作者： Laijiao Lan nicolas nègre DGImI University of MontpellierINRAEMontpellierFrance

Spodoptera frugiperda,also k.own as fall armyworm(FAW),is an invasive crop pest that can feed on a variety of host plants,posing a serious threat to food *** are two sympatric strains of FAW that are morphologically identical but described with different food preferences:the“rice strain”(SfR)and the“corn strain”(SfC).A few genetic loci exist to identify these two *** and Z-chromosome-link.d haplotypes are the most used,but the biggest part of the genome displays little polymorphism between strains that could explain their adaptation to different *** have previously observed consistent transcription differences between the strains in both laboratory and natural ***,we wonder if there are effects from host-strain-associated loci,maternally or paternally inherited,on FAW performance that could explain the divergence between the two FAW *** test this hypothesis,we first produced two F1 hybrid generations(SfR♀×SfC♂,SfC♀×SfR♂).These reciprocal hybrids should be heterozygous for all chromosomes except for the maternally inherited mitochondrial and sexual W *** evaluate whether plant preference is determined by these genetic loci,we cultivated the two hybrids and the two parental strains in triplicate on an artificial diet and recorded several phenotypic traits such as weight over time,survival rate,emerging rate,developmental time,and sex ***,the same performance experiment was carried out on corn ***,on the artificial diet,the two hybrid genotypes were both more performant than the two parental strains in terms of survival rate,pupal emerging rate,and developmental time,whereas they were intermediate to the inbred parental strains in pupal *** the corn plant diet,both hybrid genotypes outperformed the two parental strains in larval *** these asymmetrical results revealed that mitochondrial or sex-link.d haplotypes alone cannot explain the performance differences

关键词： fall armyworm Haldane's rule heterosis hybrid performance mitochondria

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Characterization of Glycerol-Extractable Organic matter from Etna Soils of Different Ages

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Pedosphere 2010年第1期20卷 120-128页

作者： A. BAGLIERI A. IOPPOLO m. ngre C. ABBATE m. GEnnARI Dipartimento di scienze Agronomiche Agrochimiche e delle Produzioni Animali Sezione di Scienze Agrochimiche Universitàdi Catania Dipartimento di Valorizzazione e protezione delle Risorse Agroforestali Settore Chimica Agraria Universitàdi Torino

We characterized humic acids （HAs） and glycerol-extractable organic fractions （GEOFs） extracted from four Andisols, tak.n from comparable soil-climate conditions on the east side of mount Etna. The soils were formed on old lava （about 9000 years ago）, old tephra （about 8 700 years ago）, recent lava （about 2 600 years ago） and recent tephra （about 3600 years ago）. A part of the organic matter of the soils, deprived of HAs and fulvic acids （FAs）, was isolated by glycerol extraction. The GEOF can not be extracted with alk.line solutions, probably because it is closely bound to the mineral component of the soil. The characterization of the extracted organic fraction was carried out using elementary and functional group analysis and Fourier transform infrared （FT-IR） spectroscopy. About 20 extractions were necessary to extract the HA and FA from the older soils and about 10 extractions to extract them from the younger soils. Data showed that the CEOFs had a greater ash content and a smaller n content, as well as a greater presence of aliphatic compounds and carboxylic groups as compared to the HA extracted from the same soil. The GEOFs extracted from younger soils also had a lower yield, ash and COOH-group content, and were more aliphatic than the GEOF extracted from older soils. Finally, the GEOFs were more closely bound to the amorphous component of the soil （＇short-range＇ minerals） and consequently less subject to biodegradation.

关键词： Andisol Fourier transform infrared spectra humic substances

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Family physicians’ perception on environmental influences in promoting physical activity in their obese patients

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Open Journal of Preventive medicine 2012年第4期2卷 423-428页

作者： Samuel n. Forjuoh Chanam Lee Suojin Wang Yan Hong marcia G. ory Department of Family & Community medicine Scott & White Healthcare College of Medicine Texas A&M Health Science Center Temple USA Department of Health Promotion & Community Health Sciences School of Rural Public Health Texas A&M Health Science Center College Station USA Department of Landscape Architecture & Urban Planning College of Architecture Texas A&M University College Station USA Department of Statistics College of Science Texas A&M University College Station USA

Although many obese patients do not engage in adequate physical activity (PA), little is k.own about whether physicians discuss environmental barriers in promoting PA. We conducted this study to describe physicians’ views about discussing environmental barriers in promoting PA with obese patients and determine whether counseling varies by years of practice. We conducted an online survey of family physicians practicing in 17 clinics in Central Texas. We performed descriptive analysis on barriers to PA, counseling on meeting PA recommendation, and written prescription for exercise and bivariate analysis by years of practice. Statistical significance was set at p ns invited, 57 (59.4%) completed the survey. majority reported their obese patients brought up the environment as a barrier to walk.ng (89.3%) or PA (91.2%). majority (80.7%) also reported ask.ng about environmental barriers to walk.ng, with 84.2% giving specific examples to overcome these barriers. While 96.5% reported advising their obese patients about meeting the PA recommendation, only 26.3% reported giving them a written prescription for exercise. These did not vary significantly by years of practice. Physicians felt having more time with their patients and k.owing specific strategies to overcome environmental barriers, safe places in patients’ neighborhoods, and what environmental factors influence PA may help discuss environmental issues with their obese patients. Physicians want and counsel their obese patients to be physically active, but do not generally give prescriptions for exercise irrespective of years of practice. They also want tools to enhance their abilities to better assist these patients.

关键词： Barriers to Physical Activity Environmental Barriers Obesity Physical Activity Physician Counseling Physician Practices Walk.ng

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用传递矩阵法简化计算弯管应力

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固体力学学报 1990年第1期11卷 72-79页

作者：任文敏 H. ory 清华大学西德亚琛工业大学

1.引言弯管是管道系统中必不可少的构件.Batlin、v. k.′rma′n、Axelrad、ory、Wilczck.都对弯管进行过研究(图1,[7]).张维、夏子辉得到壳体理论精度下的更为一般的解答.本文在文献[6]的基础上考虑了内压影响,可计算弯管内(除两端外)... 详细信息

1.引言弯管是管道系统中必不可少的构件.Batlin、v. k.′rma′n、Axelrad、ory、Wilczck.都对弯管进行过研究(图1,[7]).张维、夏子辉得到壳体理论精度下的更为一般的解答.本文在文献[6]的基础上考虑了内压影响,可计算弯管内(除两端外)的应力分布,并与实验进行了比较.这儿给出的公式可直接用于管道系统计算。

关键词：弯管半弯理论传递矩阵法

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使用水块混合层模式模拟上层海洋的季节变化

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热带海洋 1994年第4期13卷 1-8页

作者：徐永福 gre.,JSA 中国科学院大气物理研究所大气边界层物理和大气化学国家重点实验室

使用块体混合层模式对一个固定海洋观测站所测的上层海洋之物理特性进行了模拟，结果发现了难以重复观测到的许多物理特征。文章提出了水块混合层模式，着重模拟了扩展湾流体系（ＥＧＳＳ）中的一个水块，在它被海流从佛罗里达海峡（２... 详细信息

使用块体混合层模式对一个固定海洋观测站所测的上层海洋之物理特性进行了模拟，结果发现了难以重复观测到的许多物理特征。文章提出了水块混合层模式，着重模拟了扩展湾流体系（ＥＧＳＳ）中的一个水块，在它被海流从佛罗里达海峡（２４°Ｎ，８０°Ｗ）带到挪威海（６８°Ｎ，１０°Ｅ）的过程中，其物理特性（其中包括温度、盐度、混合层深度和夹卷速度）随时间的变化。模拟结果较好地再现了所观测的物理特性的演化。

关键词：混合层模式水块海洋季节变化

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Corrosion and mechanical properties of a novel biomedical Wn43magnesium alloy prepared by spark.plasma sintering

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Journal of magnesium and Alloys 2021年第3期9卷 853-865页

作者： michal k.apek.mária Zemk.vá Adam gres Eva Jablonsk. Frantisek.Luk.c Robert k.ál Jan Bohlen Peter minárik Charles University Faculty of Mathematics and PhysicsKe Karlovu 512116 PragueCzech Republic nuclear Physics Institute of CAS Řež13025068ŘežCzech Republic University of Chemistry and Technology Department of Biochemistry and MicrobiologyTechnická5Prague16628 PragueCzech Republic Institute of Plasma Physics of CAS Za Slovankou 318200 PragueCzech Republic Helmholtz-Zentrum Geesthacht Magnesium Innovation Centre(MagIC)D21502 GeesthachtGermany

Alloying of mg with rare-earth(RE)elements proved to be beneficial for their in-vitro and in-vivo *** this work.a novel Wn43(mg-4 wt%Y-3 wt%nd)alloy with a well-defined composition was prepared,where,unlik. in the commercial WE43 alloy,the possibly harmful RE mischmetal was substituted by less toxic nd.A modern spark.plasma sintering(SPS)technique was used to effectively produce Wn43 samples from atomized *** temperatures of 400℃-550℃ and holding times of 3 or 10 min were used and wellcompacted final materials were successfully *** was shown that a superior combination of corrosion and mechanical properties was attained in the samples sintered at 500℃ and 550℃,while the effect of sintering time was rather *** performance of this material was exceptional within the group of mg alloys prepared by powder metallurgy and comparable with conventionally prepared ***,it was shown that a great variety of mechanical and corrosion characteristics can be obtained by altering the SPS parameters so as to fulfill case-specific requirements typical of biomedical ***,the novel Wn43 alloy prepared by SPS seems to be a particularly suitable material for biomedical use.

关键词： magnesium Biocompatibility Powder Sintering Corrosion Rare earth element

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Impact of HIV on the health-related quality of life in youth with perinatally acquired HIV

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World Journal of Pediatrics 2019年第5期15卷 492-498页

作者： Isabel Cuéllar-Flores Talís Saínz Carlos Velo maría Isabel González-Tomé Cristina García-navarro Caroclina Fernández-mcphee Sara Guillén JoséTomás Ramos Pilar miralles Rafae Rubio JoséIgnacio Bernardino Luis Prieto Pablo Rojo Santiago Jiménez de ory maria Luisa navarro CoRiSpe(FARO and neuroCoRISpeS projects,RITIP-Traslational Research network.in Pediatric Infectious Diseases) Pediatric Department Hospital Clínico San CarlosMadridSpain Infectious Diseases Service Paed DepartmentHospital La PazMadridSpain La Paz Research Institute(IdiPAZ) MadridSpain Infectious Diseases Service Paed DepartmentHospital 12 de OctubreMadridSpain Infectious Diseases Service Paed DepartmentH.Gregorio MaranónMadridSpain Paed Department Hospital de GetafeMadridSpain Infectious Diseases Service H.Gregorio MaranónMadridSpain HIV Service Hospital 12 de OctubreMadridSpain Infectious Diseases Service Hospital La PazMadridSpain Instituto de Investigación Sanitaria Hospital gregorio maranón(IiSGm) MadridSpain Universidad Complutense de madrid MadridSpain Translational Research network.in Pediatric Infectious Diseases(RITIP) MadridSpain 不详

Back.round Studies investigating health-related quality of life(HRQoL)in youth with perinatally acquired HIV(PHIV+)are *** study aimed to compare HRQoL of PHIV+to sociodemographic-matched youth not living with HIV(HIV-),Spanish general youth population,and to explore associations between sociodemographic variables,drug consumption,and *** PHIV+youth were randomly selected from CoRISpe database(Cohort of the Spanish Pediatric HIV network..HRQoL was evaluated by *** Thirty-nine PHIV+youth(mean age:23.36 years,SD=3.83)and thirty-nine HIV-youth(mean age:22.97 years,SD=3.80)participated in this ***+obtained lower scores in SF-12 physical health subscale(PCS)than HIV-(P=0.001)and Spanish general youth population(P=0.006).PHIV+had lower scores on the mental health subscale(mCS)than the Spanish general youth population(Pned better scores than those were not at ***+youth who had used cocaine and cannabis had lower scores in mCS(P=0.002).Conclusions There is a need for HRQoL management in the associated medical follow-up.

关键词： Drug consumption Health-related quality of life mental health Perinatally acquired HIV youth

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意大利(13区) Italik

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城市环境设计 2017年第1期 366-369页

作者： ory Associés L35建筑事务所

场地信息:预期功能:创新型商铺和服务。地址:d’Italie街2号(13区)所有权人:巴黎市政府地块面积:540m2使用面积:公共区域限高:37m获奖团队:项目运营:Hammerson SAS开发商:Autres Attitudes Urbaines项目支持:Lafi、greenaffair、Bet、Da... 详细信息

关键词：意大利广场建筑 Italik 项目运营地块面积所有权人巴黎市经济学家社会科学家开发商

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美国传染病学医师代表团学术报告

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广东医学 1984年第3期 46-47页

作者： greenman,Smith ,Edwin m ory mD,彭文伟美国迈阿密市佛罗里达州大学医学院美国德州休斯顿百礼医学院传染病科中山医学院传染病科主任、内科副教授主任内科教授

一、美国病毒性肝炎的概况和预防greenman 美国的病毒性肝炎的类型和中国相同也分为甲型、乙型及非甲非乙型三种,美国每年的报告病例约10万例,年发病率约为1‰。(一) 甲型肝炎:通常呈散在性发病,有时亦可通过食物及水造成爆发流行,暴发... 详细信息

一、美国病毒性肝炎的概况和预防greenman 美国的病毒性肝炎的类型和中国相同也分为甲型、乙型及非甲非乙型三种,美国每年的报告病例约10万例,年发病率约为1‰。(一) 甲型肝炎:通常呈散在性发病,有时亦可通过食物及水造成爆发流行,暴发型肝炎发生率约为总病例数的1‰。病愈后无病毒携带现象,一般不转为慢性。

关键词：医院内感染男性同性恋未明热金葡菌非甲非乙型肝炎病毒性肝炎乙肝疫苗脓肿炎症菌血症病毒携带正常菌群美国美利坚合众国北美洲

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造山二辉橄榄岩中的微量元素揭示了上地幔的复杂历史

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地球与环境 1984年第3期 38-44页

作者： m.Loubet C.J.Allègre 王建斌诸大建青海工农学院地质系青海工农学院地质系

造山二辉橄榄岩型岩体(也叫做高温橄榄岩)被认为代表了由于大的构造运动而机械侵位于大陆壳的上地幔碎块。这些岩体通常沿山脉内大洋物质和地壳物质发生过相互作用的大断层系出露。因此这些岩体非常有意义,因为它们与嵌在高度

关键词：辉岩熔体电器构件部分熔融超基性岩橄榄岩

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