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Effect of the thin cell layer technique in the induction of somatic embryos in Pinus patula Schl. et Cham

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journal of Forestry Research 2019年第4期30卷 1535-1539页

作者： Marco A.Ramirez-Mosqueda Lourdes G.Iglesias-Andreu Arturo A.Armas-Silva Esmeralda j.Cruz-Gutierrez jose F.de la Torre-Sanchez Otto R.leyva-Ovalle Carlos M.Galan-Paez Instituto de Biotecnologfa y Ecologfa Aplicada(INBIOTECA) Universidad Veracruzana.Av.de las Culturas Veracruzanas No.101Campus para la Culturalas Artes y el DeporteCol.Emiliano ZapataC.P.91090 XalapaVeracruzMexico Centro Nacional de Recursos Geneticos-INIFAP Boulevard de la Biodiversidad No.400 Rancho las CrucesC.P.47600 Tepatitlan de MorelosJaliscoMexico Facultad de Ciencias Bioldgicas y Agropecuarias Region Cordoba-Orizaba Universidad VeracruzanaC.P.94945 Amatlan de los ReyesVeracruzMexico

Pinus patula is a species commonly used for reforestation in ***,efficient methods for the mass production seedlings are *** particularly by somatic embryogenesis provides an option for the rapid multiplication of high-quality,genetically improved *** study induces somatic embryogenesis in this species using the thin cell layer(TCL)*** sources of explants(complete immature embryos;lTCL segments from immature embryos)were *** efficiency of TCL from longitudinal sections[lTCL]and transverse[tTCL]was *** results show using thin cell layers from immature embryos cultivated in 16 light/8 dark hours achieves induction of somatic embryos.A higher percentage of embryogenic callus was obtained when tTCL segments were used as an explant *** results produced somatic embryos from tTCL segments of an immature embryo without germinating the seed,making the process more time *** addition,this technique can be used to generate somatic embryogenesis in forest species that have low germination rates.

关键词： Pinus patula Somatic embryos Micropropagation Thin cell layer Maturation

Effect of the sintering technique on the ferroelectric and d33 piezoelectric coefficients of Bi0.5(Na0.84K0.16)0.5TiO3 ceramic

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journal of Advanced Ceramics 2019年第2期8卷 278-288页

作者： G.HERNANDEZ-CUEVAS j.R.leyva MENDozA P.E.GARCíA-CASILLAS C.A.RODRíGUEZ GONZáLEZ j.F.HERNANDEZ-PAZ G.HERRERA-PéREZ L.FUENTES-COBAS S.DíAZ DE LA TORRE O.RAYMOND-HERRERA H.CAMACHO-MONTES Instituto de Ingeniería y Tecnología Universidad Autónoma de Ciudad JuárezAv.Del Charro 450 Norte Cd.JuárezChihuahua32310México Centro de Investigación en Materiales Avanzados Miguel de Cervantes 120Chihuahua 31109ChihuahuaMéxico Centro de Investigación e Innovación Tecnológica Instituto Politécnico NacionalCerrada de Cecati s/nAzcapotzalcoSanta Catarina02250Ciudad de MéxicoMéxico Centro de Nanociencias y Nanotecnología Universidad Nacional Autónoma de MéxicoKm.107 Carretera Tijuana-EnsenadaAP.14Ensenada 22860Baja CaliforniaMéxico

In the search of lead-free piezoelectric materials,ceramic processing techniques offer potential tools to increase the piezoelectric and ferroelectric properties in addition to new chemical *** of pure BNKT16(Bi0.5(Na0.84K0.16)0.5TiO3)phase were synthesized by sol–gel method with a low crystallization temperature(750℃).Ceramic samples were sintered by pressureless sintering(PLS),sinter-forging(SF),and spark plasma sintering(SPS)***,morphological,and chemical characterizations were performed by XRD,Raman,EDS,and *** samples by PLS and SF exhibit rod-like grains associated to bismuth *** highest remanent polarization(11.05μC/cm2),coercive field(26.2 kV/mm),and piezoelectric coefficient(165 pC/N)were obtained for SF *** piezoresponse force microscopy(PFM)analysis shows that the crystallites at the nanoscale exhibit piezoelectric phenomenon and the highest piezoelectric response is reported for PLS *** presence of the rhombohedral phase,the increase in grain and crystallite size,and the oriented rod-like inclusions favoring the crystallographic texture are facts that enhance the piezoelectric coefficient for BNKT16 piezoceramics.

关键词： lead-free piezoelectrics sol–gel pressureless sintering (PLS) sinter-forging (SF) spark plasma sintering(SPS) piezoresponse

Molecular isolation and identification of Mycobacterium avium *** in Didelphis virginiana from Hidalgo,Mexico

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Asian Pacific journal of Tropical Medicine 2020年第3期13卷 131-136页

作者： Nallely Rivero-Perez juan Ocampo-López Benjamín Valladares-Carranza Fabián R.Gómez de Anda Francisco j.Pena jiménez Victor M.Martínez juárez Armando Peláez Acero jose I.Olave leyva Deyanira Ojeda-Ramírez Adrian Zaragoza-Bastida Area Académica de Medicina Veterinaria y Zootecnia Instituto de Ciencias AgropecuariaUniversidad Autónoma del Estado de HidalgoAv.Universidad Km 1Ex-Hda.de AquetzalpaC.P.43600 TulancingoHidalgoMéxico Centro de Investigación y Estudios Avanzados en Salud Animal Facultad de Medicina Veterinaria y ZootecniaUniversidad Autónoma del Estado de MéxicoKm 15.5 Carretera Panamericana Toluca-AtlacomulcoC.P.50200 TolucaEstado de MéxicoMéxico Centro Universitario del Sur/División de Ciencias de la Salud/Departamento de Ciencias Clínicas/Hospital Veterinario CUSUR Universidad de Guadalajara Av.Enrique Arreola Silva No.883colonia centro C.P.49000Ciudad GuzmánJaliscoMéxico

Objective:To isolate and identify the exact species of the genus Mycobacterium from Didelphis(D.)virginiana,and the direct implications of this bacterium to public health and veterinary ***:Thirty-one *** were captured and necropsied in Hidalgo,*** samples were collected to culture mycobacteria present and examine individual specimens’*** identification was obtained through the application of amplification and sequencing of 16S rDNA ***:Three strains were isolated and identified as Mycobacterium(M.)avium *** by utilizing *** complexspecific *** lesions were observed in the subpleural zone(granuloma gradeⅡ)and bronchial(granuloma gradeⅠ)of the lungs of *** with positive ***:Three strains of *** ***,from lung tissue samples of *** were *** subspecies of *** has important implications in public health and veterinary medicine.

关键词： Didelphis virginiana Mycobacterium avium complex Mycobacterium avium subsp.hominissuis Public health

成骨不全:长期氨羟二磷酸二钠静脉注射疗法对人体测量学、骨骼和无机物代谢的影响

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世界核心医学期刊文摘（儿科学分册） 2006年第8期2卷 15-16页

作者： Vallo A. Rodriguez-leyva F Rodrguez Soriano j. 张振(译) 不详 -ACTA PAEDIATR. INT. j. PAEDIATR. 2006 95/3 (332-339)

Background:Administration of bisphosphonates represents a beneficial therapy in children and adolescents with severe osteogenesis imperfecta(OI)because it significantly reduces the annual rate of bone ***:To evaluate the anthropometric,skeletal and mineral metabolic effects of long-term intravenous pamidronate therapy in ***:Ten patients,aged 5 mo to 25 y,with OI received cyclical intravenous *** yearly dose of pamidronate was approximately 9 mg/kg/d at all *** of treatment varied from a minimum of 2 y to a maximum of 5 ***,bone mass and mineral metabolic parameters were studied at baseline and repeated every year *** mass was assessed by calculation of bone mineral apparent density(L2-L4 BMAD).This represents the first study on the changes in size-adjusted measures of bone mass observed with such ***:While on therapy,all children and adolescents grew normally but did not experience any manifest catch-up growth.A significant decrease in the incidence of bone fractures was *** seven patients with severe forms,L2-L4 BMAD increased by 80%after the first 2 y of therapy but tended to stabilize or even decrease over the following years despite maintenance of therapy.A significant inverse correlation could be established between urinary Ca excretion and L2-L4 BMAD(r =-0.30,p < 0.05).Conclusion:Our results confirm that cyclical pamidronate infusions reduce the incidence of bone fractures and allow normal *** improvement in bone mass initially observed after the first 2 y of therapy is not always sustained over the following years despite maintenance of therapy.

关键词：静脉注射疗法二磷酸二钠人体测量学成骨不全代谢参数无机物骨骼静脉注射治疗氨骨折发生率

PREVENTION项目:对岩石圈-大气层-电离层耦合模型的监测与检验——墨西哥综合地球物理观象台

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国际地震动态 2005年第11期26卷 71-75页

作者： S. A. Pulinets A. leyva Contreras V. Kostoglodov H. Perezde Tejada j. Urratia-Fucugauchi 张素琴 H.PerezdeTejada!j.Urratia-Fucugauchi

近几年来,为了解释在预测地震区的近地表、大气层和电离层等不同层面观测到的电磁和等离子体现象的物理机制,人们建立了许多不同的物理模型。由于缺少充足的试验数据,所有模型都是基于一定的假设得到的。为了建立完善的模型,必须用到在... 详细信息

近几年来,为了解释在预测地震区的近地表、大气层和电离层等不同层面观测到的电磁和等离子体现象的物理机制,人们建立了许多不同的物理模型。由于缺少充足的试验数据,所有模型都是基于一定的假设得到的。为了建立完善的模型,必须用到在不同地点、不同时间、不同类型的地震中搜集来的数据。PREVENTION项目(PREcur-sors ofVolcano Eruptions and Notable Tremors IntegralObservatioN,火山喷发和显著震动的前兆的全面观测)试图在墨西哥地震活动最频繁、潜在危险最严重的地区之一Guer-rero州建立综合地球物理观象台,从地面到空中进行多层面的观测,以期获得同时发生的多参数数据来对现存的地震-电离层耦合模型进行直接检验。第二个试验场将建立在Popocatepetl火山附近,来研究火山活动和电离层效应之间的关系。本文展示了综合地球物理观象台的含义和内容。

关键词：综合地球物理电离层效应耦合模型观象台墨西哥大气层检验项目岩石圈监测

Measurements of dihadron correlations relative to the event plane in Au+Au collisions at√^(S)NN=200 GeV

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Chinese Physics C 2021年第4期45卷 198-241页

作者： H.Agakishiev M.M.Aggarwal Z.Ahammed A.V.Alakhverdyants I.Alekseev j.Alford B.D.Anderson C.D.Anson D.Arkhipkin G.S.Averichev j.Balewski D.R.Beavis N.K.Behera R.Bellwied M.j.Betancourt R.R.Betts A.Bhasin A.K.Bhat H.Bichsel j.Bieleik j.Bielcikova B.Biritz L.C.Bland W.Borowski j.Bouchet E.Braidot A.V.Brandin A.Bridgeman S.G.Brovko E.Bruna S.Bueltmann I.Bunzarov T.P.Burton X.Z.Cai H.Caines M.Calderon de la Barca Sanchez D.Cebra R.Cendejas M.C.Cervantes Z.Chajecki P.Chaloupka S.Chattopadhyay H.F.Chen j.H.Chen j.Y.Chen L.Chen j.Cheng M.Cherney A.Chikanian K.E.Choi W.Christie P.Chung M.j.M.Codrington R.Corliss j.G.Cramer H.j.Crawford S.Dash A.Davila leyva L.C.De Silvat R.R.Debbe T.G.Dedovich A.A.Derevschikov R.Derradi de Souza L.Didenko P.Djawotho S.M.Dogra X.Dong j.L.Drachenberg j.E.Draper j.C.Dunlop L.G Efimov M.Elnim j.Engelage G Eppley M.Estienne L.Eun O.Evdokimov R.Fatemi j.Fedorisin A.Feng R.G.Fersch P.Filip E.Finch V.Fine Y.Fisyak C.A.Gagliardi D.R.Gangadharan A.Geromitsos F.Geurts P.Ghosh Y.N.Gorbunov A.Gordon O.Grebenyuk D.Grosnick S.M.Guertin A.Gupta W.Guryn B.Haag O.Hajkova A.Hamed L-X.Han j.W.Harris j.P.Hays-Wehle M.Heinz S.Heppelmann A.Hirsch E.Hjort G.W.Hoffmann D.j.Hofiman B.Huang H.Z.Huang T.j.Humanic L.Huo G.Igo P.jacobs W.W.jacobs C.jena F.jin j.joseph E.G.judd S.Kabana K.Kang j.Kapitan K.Kauder H.Ke D.Keane A.Kechechyan D.Kettler D.P.Kikola j.Kiryluk A.Kisiel V.Kizka A.G.Knospe D.D.Koetke T.Kollegger j.Konzer I.Koralt L.Koroleva W.Korsch L.Kotchenda V.Kouchpil P.Kravtsov K.Krueger M.Krus L.Kumar P.Kurnadi M.A.C.Lamont j.M.Landgraf S.LaPointe j.Lauret A.Lebedev R.Lednicky j.H.Lee W.Leight M.j.LeVine C.Lil L.Li N.Li W.Li X.Li X.Li Y.Li Z.M.Li M.A.Lisa F.Liu H.Liu j.Liu T.Ljubicic W.j.Llope R.S.Longacre W.A.Love Y.Lu E.V.Lukashov X.Luo G.L.Ma Y.G.Mai D.P.Mahapatra R.Majka O.I.Mall L.K.Mangotra R.Manweiler S.Margetis C.Markert H.Masui H.S.Matis Yu.A.Matulenko D.MeDonald T.S.McShane A.Meschanin R.Milner N.G.Minaev S.Mioduszewski A.Mischke M.K.Mitrovski B.Mohanty M.M.Mondal B.Morozov D.A.Morozov M.G.munhoz M Argonne National Laboratory Argonnellinois 60439USA Brookhaven National Laboratory UptonNew York 11973USA University of Califomia BerkeleyCaliformnia 94720USA University of California DavisCalifornia 95616USA University of Califormnia Los AngelesCalifomia 90095USA Universidade Estadual de Campinas Sao PauloBrazil University of Illinois at Chicago ChicagoIlinois 60607USA Creighton University OmahaNebraska 68178USA Czech Technical University in Prague FNSPEPrague11519Czech Republic Nuclear Physics Institute AS CR 25068 Rez/PragueCzech Republic University of Frankfurt FrankfurtGermany Institute of Physics Bhubaneswar 751005India Indian Institute of Technology MumbaiIndia Indiana University BloomingtonIndiana 47408USA Alikhanov Instiute for Theoretical and Experimental Physics MoscowRussia University of jammu Jammu 180001India joint Institute for Nuclear Research Dubna141980Russia Kent State University KentOhio 44242USA University of Kentucky LexingtonKentucky40506-0055USA Institute of Modern Physics LanzhouChina Lawrence Berkeley National Laboratory BerkeleyCalifornia 94720USA Massachusetts Institute of Technology CambridgeMA 02139-4307USA Mx-Planck-Institut fir Physik MunichGermany Michigan State University East LansingMichigan 48824USA Moscow Engineering Physics Institute Moscow Russia NIKHEF and Utrecht University AmsterdamThe Netherlands Ohio State University ColumbusOhio 43210USA Old Dominion University NorfolkVA23529USA Panjab University Chandigarh 160014India PennsyIvania State University University ParkPennsylvania 16802USA Institute of High Energy Physics ProtvinoRussia Purdue University West LafayetteIndiana 47907USA Pusan National University PusanRepublic of Korea University of Rajasthan Jaipur 302004India Rice University HoustonTexas 77251USA Universidade de Sao Paulo Sao PauloBrazil University of Science&Technology of China Hefei 230026.China Shandong University JinanShandong 250100China Shanghai Institute of Applied Physics Shanghai 201800Chi

Dihadron azimuthal correlations containing a high transverse momentum(pr)trigger particle are sensit-ive to the properties of the nuclear medium created at RHIC through the strong interactions occurring between the traversing parton and the medium,*** measurements revealed a strong modification to di-hadron azimuthal correlations in Au+Au collisions with respect to ptp and d+Au *** modification in-creases with the collision centrality,suggesting a path-length or energy density dependence to the je-quenching *** paper reports STAR measurements of dihadron azimuthal correlations in mid-central(20%-60%)Au+Au collisions at√^(S)NN=200 GeV as a function of the trigger particle's azimuthal angle relative to the event plane,Ф_(s)=|Ф_(t)-ψ_(Ep)|.The azimuthal correlation is studied as a function of both the trigger and associated particle *** subtractions of the combinatorial background and anisotropic flow,assuming Zero Yield At Minimum(ZYAM),are *** correlation results are first discussed with subtraction of the even harmonic(elliptic and quadrangu-lar)flow *** away-side correlation is strongly modifed,and the modification varies withФ_(s),with a double-peak structure for out-of-plane trigger *** near-side ridge(long range pseudo-rapidity△_(η)correla-tion)appears to drop with increasingФ_(s)while the jet-like component remains approximately *** correla-tion functions are further studied with the subtraction of odd harmonic triangular flow background arising from *** is found that the triangular flow,while responsible for the majority of the amplitudes,is not sufficient to explain theφs-dependence of the ridge or the away-side double-peak *** dropping ridge withФ_(s)could be attributed to aФ_(s)-dependent lliptie anisotropy;however,the physics mechanism of the ridge remains an open *** with aФ_(s)-dependent elliptic flow,the away-side correlation structure

关键词： relativistic heavy ion collisions dihadron correlations jet-medium interactions anisotropic flow background event plane