检索结果-南通市图书馆

Surgical and nutritional interventions for endometrial receptivity:A case report and review of literature

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2022年第33期10卷 12295-12304页

作者： Dinorah Hernández-Melchor Cecilia palafox-Gómez Ivan Madrazo Ginna Ortiz America Padilla-Viveros Esther López-Bayghen Science Technology and Society ProgramCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalMéxico City 07360CDMXMéxico Clinical Research Instituto Regenera SCMéxico City 05320CDMXMéxico Departamento de Toxicología Centro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalMéxico City 07360CDMXMéxico Investigación Clínica Instituto de Infertilidad y Genética México SCINGENESMéxico City 05320CDMXMéxico Departamento de Toxicología Centro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalMexico City 07360CDMXMéxico

BACKGROUnD Polycystic ovary syndrome(PCOS)is an endocrine disease that combines metabolic,reproductive,and psychological *** disorders and impaired endometrial receptivity in PCOS can cause *** resistance(IR)is a pathological state of inadequate response to insulin that affects reproduction in PCOS,as damage caused by IR at the endometrial level becomes an obstacle for embryo *** IR resulted in spontaneous pregnancies in PCOS patients,indicating that metabolic corrections improve endometrial *** stem-cell treatment has also corrected endometrial quality and lead to pregnancies in patients with Asherman’s *** propose a combination of nutritional intervention with the surgical placement of stem cells to improve endometrial quality to achieve pregnancy in a PCOS patient undergoing in vitro fertilization(IVF)*** SUMMARY After two failed IVF cycles,a metabolic intervention,consisting of a ketogenic diet with daily consumption of 50 g of carbohydrates(CH),was indicated until *** Syndrome was assessed using the Harmonizing Definition(3 of 5 pathologies:Central obesity,hypertension,hyperglycemia,hypertriglyceridemia,and dyslipidemia),and the Homeostatic Model Assessment of IR(HOMA-IR)was used to measure the level of *** IR improved,endometrial quality ***,two day 5-thawed embryos(euploid,donated oocyte–partner's sperm)failed to implant,suggesting endometrial quality improvement was ***,transmyometrial implantation of mesenchymal stem cells from the stromal vascular fraction of adipose tissue was performed to enrich the endometrial stem cell *** endometrial mean thickness for embryo transfer(6.9 mm)was achieved three months after stem cell treatment and continuous dietary control of *** euploid-day 5-thawed embryos(donated oocyte–partner's sperm)were transferred,and embryo implantation was confirmed on day 14 byβ-hCG s

关键词： Polycystic ovarian syndrome Insulin resistance nutritional intervention Endometrial quality Stem cell treatment Case report

Reproductive performance of the Mesa silverside(Chirostoma jordani Woolman,1894)under natural and controlled photoperiods

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

BIOCELL 2012年第3期36卷 105-111页

作者： JOSÉLUIS ARREDOnDO-FIGUEROA LAURA GEORGInA nÚÑEZ-GARCÍA PALOMA ADRIAnA HEREDIA-GUZMÁn JESÚS T.POnCE-palafox Posta Zootécnica Departamento de ZootecniaCentro de Ciencias AgropecuariasUniversidad Autónoma de AguascalientesJesús MaríaAguascalientesMéxico Planta Experimental de Producción Acuícola Departamento de HidrobiologíaCBSUniversidad Autónoma Metropolitana IztapalapaMéxicoD.F Facultad de Estudios Superiores Iztacala Universidad Nacional Autónoma de MéxicoEstado de MéxicoMéxico Centro de Innovación y Transferencia Tecnológica CEnITT Posgrado CBAPEscuela Nacional de Ingeniería PesqueraUniversidad Autónoma de NayaritTepicNayaritMéxico

Chirostoma jordani is a native annual species inhabiting lacustrine waters of the Central Mexico *** is widely distributed and is currently facing high environmental *** experi-ments were performed to study the reproductive performance of this *** of the experiments were conducted in 270-L indoor recirculation *** males and one female at the first stage of reproduction were included in each test.A photoperiod of 14 light hours and 10 dark hours was *** a fifth experiment,10 females and 15 males were kept in an outdoor 3,000-L recirculation tank under natural *** number of spawns,fertilised eggs and 30-day-old juveniles were counted and the survival rate was *** results indicated significant differences(Pn *** spawn numbers and greater egg production were observed under controlled photoperiod,and higher numbers of juveniles and a higher survival rate were observed under natural *** trials exhibited different patterns of egg produc-tion during the *** egg production in the natural-photoperiod trials followed a polynomial curve *** contrast,the trials under the controlled photoperiod showed an irregular pattern of increases and decreases in egg production.

关键词： breeding Atherinopsidae eggs juveniles survival rate

Mechanical response to axial strain in WS2 nanotubes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Progress in natural Science:Materials International 2021年第6期31卷 898-903页

作者： S.Mejía-Rosales S.A.Sandoval-Salazar A.Soria-Sánchez J.D.Vázquez-palafox Centro de Investigación en Ciencias Físico-Matemáticas (CICFIM) Facultad de Ciencias Físico-Matemáticas Universidad Autónoma de Nuevo León Facultad de Ciencias Físico-Matem aticas Universidad Aut onoma de Nuevo León Facultad de Ciencias Físico-Matemáticas Universidad Autónoma de Nuevo León

In order to take advantage of inorganic nanotubes for their use with pragmatic purposes, characterization of their mechanical properties becomes a relevant issue. In the present study, a series of results on the mechanical properties of WS2nanotubes of several diameters and two main lattice orientations was obtained by the implementation of molecular dynamics simulations using an interatomic potential of the Stillinger-Weber kind. A Young’s modulus for nanotubes of H polytype close to 170 GPa was obtained in accordance with experimental results, and of ≈ 130 GPa for nanotubes of the T polytype, with almost no dependance on the diameter of the nanotube. The tensile strength was as large as 20 GPa(H armchair nanotubes, close to the value obtained in experiments), and the strain at the point of rupture reached values close to 0.24. The effect of several kinds of defects on the mechanical properties was investigated, and the results showed that when the defects consisted in the absence of a whole WS2unit, the tensile strength and point of rupture dropped considerably, and the fracture became more brittle than in pristine nanotubes. The dependence of the mechanical properties on temperature was also investigated.

关键词： Tungsten disulfide nanotubes Young's modulus Stillinger-weber Molecular dynamics

Early muscle reinnervation by means of end-to-side neurorrhaphy in an experimental model

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Plastic and Aesthetic Research 2017年第2期4卷 18-23页

作者： AraceIi Pérez RafaeI Reynoso Rosa MRomero AngéIica GonzáIez Jorge Ochoa DuIce HGutiérrez damián PaIafox Department of Plastic Surgery General Hospital“Dr.Manuel Gea Gonzalez”Mexico City14080Mexico Department of Morphology of Cell and Tissue National Pediatric InstituteMexico City14080Mexico Department of Plastic Surgery Hospital AngelesMexico City14080Mexico Department of Health Sciences Technological University of MexicoMexico City14080Mexico.

Aim:The aim of the study was to provide early muscular reinnervation to avoid muscle atrophy and functional loss in an experimental ***:Fifty rats were divided into five *** group 0(control group)only nerve dissection was *** peroneal nerve section was performed in the remaining *** end-to-end neurorrhaphy(EEn)was made in group *** group 2,an end-to-side neurorrhaphy(ESn)was performed from the tibial nerve to the peroneal *** group 3,a direct EEn,plus an ESn,were used as a nerve graft as a bridge from the donor nerve(tibial);all nerve coaptations were performed through an epineural *** group 4,only a neurotomy was made without any type of ***:neural diameters were similar in groups 0,1,and 3(38±1μm,31±6μm,32±3μm).neural fibers in group 3 had an 18%increase in the number of axons(Pn compared to group *** 2(28±1μm)and group 4(19±3μm)had diminished diameters with a lower index of muscle *** in group 4 presented with'clawed'lower extremities and had difficulty with *** graft diameters was similar in groups 2 and 3(33±4μm,31±3μm),but axon density was significantly higher in group 3(53±6μm,39±8μm)(Pn density was 36%higher when the combination of EEn and ESn with a neural graft through an epineural window was ***:This study revealed that the combination of EEn and ESn repairs with the addition of a neural graft provides a lower index of muscle fiber destruction,and can be a reliable method for reconstruction in high neural injuries.

关键词： nerve transfer neurorrhaphy muscle reinnervation nerve repair

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

蝴蝶中“假触角”的“假头”翅模式

Current Zoology 2015年第4期61卷 758-764页

作者： Tania G. LOPEZ-palafox Armando LUIS-MARTInEZ Carlos CORDERO Posgrado en Ciencias Biologicas Instituto de Ecologia Universidad Nacional Autonoma de Mexico Distrito Federal 04510 Mexico Museo de Zoologia Departamento de Biologia Evolutiva Facultad de Ciencias Universidad Nacional Autonoma de Mexico Distrito Federal 04510 Mexico Departamento de Ecologia Evolutiva Instituto de Ecologia Universidad Nacional Autonoma de M6xico Distrito Federal 04510 Mexico

在灰蝶科蝴蝶的种类很多，和后翅颜色图案的形态，加上一定的行为，表明一个假头的存在（FH）在栖息个人后结束。这是由FH有序适应逃避捕食者的视觉导向。FH的常见成分的尾巴，大概类似于天线，和典型的后翅来回沿矢状面运动（HWM）而... 详细信息

在灰蝶科蝴蝶的种类很多，和后翅颜色图案的形态，加上一定的行为，表明一个假头的存在（FH）在栖息个人后结束。这是由FH有序适应逃避捕食者的视觉导向。FH的常见成分的尾巴，大概类似于天线，和典型的后翅来回沿矢状面运动（HWM）而栖显然移动尾巴的一种方式，触角的运动进行模拟。让33个人从18种灰蝶一个毛绒的食虫鸟，我们测试的两个替代假说关于HWM。第一个假设认为，当蝴蝶在近距离观察，HWM的扭曲的假头从而降低其欺骗效果的形状，因此，选择将有利于那些停止移动翅膀当捕食者是关闭的；假设二说HWM的频率增加，提高其偏当蝴蝶效应在近距离面对捕食者。我们的研究结果倾向于支持的第二个假设因为蝴蝶半开始将其后翅或增加率的影响当暴露于鸟类；然而，有相当比例的蝴蝶（30%）停止移动后的翅膀或预计从第一个假设HWM率降低。我们的观察也表明，在杰出的HWM率存在差异，论证了生产”的后翼尾生动”运动的替代方式的存在（“假天线”）在[当前生态61没有影响（4）：758-764，2015 ]。

关键词：蝴蝶效应触角捕食者近距离灰蝶科后翅移动运动

Evaluation of Growth Performance of a Genetically Characterized F1 Rainbow Trout,Oncorhynchus mykiss in a Recirculating Aquaculture System

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agricultural Sciences 2017年第7期8卷 716-728页

作者： Jose Luis Arredondo-Figueroa nayeli Ismene Armendáriz-Sáenz Laura Georgina núnez-García Jesús Trinidad Ponce-palafox Irene De Los Angeles Barriga-Sosa Posta Zootécnica Departamento de ZootecniaCentro de Ciencias AgropecuariasUniversidad Autónoma de AguascalientesJesús MaríaMéxico Planta experimental de Producción Acuícola Departamento de HidrobiologíaDivisión de Ciencias Biológicas y de la SaludUniversidad Autónoma Metropolitana IztapalapaIztapalapaMéxico Escuela nacional de Ingeniería Pesquera Unidad de Bioingeniería CosteraUniversidad Autónoma de NayaritSan BlasMéxico

The growth performance of a selected F1 rainbow trout genetically characterized as polymorphic with locus Omy207UoG (nA = 13, PIC = 0.891, HE = 0.9003) was evaluated in a recirculating aquaculture system (RAS). A set of 157 rainbow trout of 37.8 g of mean body weight and 14.6 cm mean total length per tank, were introduced in each of six fish tank of 5 m3 connected to a recirculating aquaculture system (RAS). The trout was rearing during 317 days. Growth performance indicators and water quality were evaluated during the experiment. The genetically selected F1 rainbow trout showed a tendency towards homogeneity in growth performance along the culture period, reaching a mean total weight of 552.2 g. The length-weight relationship indicated an isometric growth (>3.0). This study presents the basis to establish a long-term marker-assisted selection program for rainbow trout culture in a subtropical region.

关键词： Rainbow Trout Oncorhynchus mykiss Genetically Characterized Growth Performance Water Quality

Microwave Design and Performance of PTB 10 V Circuits for the Programmable Josephson Voltage Standard

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Condensed Matter Physics 2014年第3期4卷 107-122页

作者： Franz Müller Thomas J. Scheller Jinni Lee Ralf Behr Luis palafox Marco Schubert Johannes Kohlmann Physikalisch-Technische Bundesanstalt (PTB) Braunschweig Germany

At Physikalisch-Technische Bundesanstalt (PTB), superconducting 10 V circuits for the programmable Josephson voltage standard (PJVS) are routinely manufactured on the basis of nbxSi1-x barrier junctions. This paper describes in detail the basic design principles for an operating frequency of 70 GHz. It starts with single junctions, discusses their insertion into microstriplines and closes with the whole microwave circuit containing 69,632 nbxSi1-x barrier junctions arranged over 128 microstriplines connected in parallel. The microwave attenuation of this junction type is a key parameter for the 10 V design and we report its experimental determination. Special attention has been devoted to subarrays with just a few Josephson junctions in one of the outermost striplines. The arrangement of these subarrays determines the optimum performance of the complete 10 V series array. The high performance of programmable 10 V circuits fabricated at PTB is characterized by measured operating margins in all subarrays of more than 1 mA centered at the same dc bias current. The observed modulation of the current margins, when changing the frequency around 70 GHz, is explained by microwave reflections caused by the rf waveguide inside the cryoprobe. We determine the current margins in dependence of the output power of a microwave synthesizer and show that 60 mW is sufficient to achieve current margins larger than 1 mA.

关键词： Josephson Voltage Standard Programmable Josephson Voltage Standard (PJVS) SnS Josephson Junction nbxSi1-x Josephson Junction

Performance of Brooders,Fry and Growth of the nile Tilapia(Oreochromis niloticus)Cultured in an Experimental Recirculating Aquaculture System

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agricultural Sciences 2015年第9期6卷 1014-1022页

作者： Jose Luis Arredondo-Figueroa Laura Georgina nunez-García Jesus T.Ponce-palafox Irene de Los Angeles Barriga-Sosa Unidad Acuícola Departamento de ZootecniaUniversidad Autonoma de AguascalientesAguascalientesMéxico Planta Experimental de Produccion Acuicola Division de Ciencias Biológicas y de la SaludDepartamento de HidrobiologíaUniversidad Autónoma Metropolitana IztapalapaMéxicoD.F.México Centro de Innovación y Transferencia Tecnológica CEnITT Posgrado CBAPEscuela Nacional de Ingeniería PesqueraUniversidad Autónoma de NayaritTepicMéxico

We present results of a long-term study aimed to optimize nile tilapia O. niloticus production in a recirculating aquaculture system (RAS) in México City. Three experiments were evaluated: 1) fry production;2) production of masculinized fries;and 3) assessment of growth under three different densities (10, 30 and 75 fish/m3). The broodstock produced on average 2400 ± 600 fry every 15 days during six months, with a total production of 28,800 ± 2000. One hundred percent males were produced in 274-L raceways in an eight-week period. The obtained results in fish production in the RAS system indicated variations related to density. A daily growth rate of 3.6 g/day was registered with a density of 10 fish/m3, 0.9 g/day in 30 fish/m3 and 0.4 g/day in 75 fish/m3. This information could be useful for production purposes in this type of systems.

关键词： Tilapia Oreochromis niloticus Intensive Culture Sex Reversal Growth Densities

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

普拉亚维瓦可持续精品树屋酒店

国际纺织品流行趋势 2017年第6期 92-97页

作者： Kimshasa Baldwin Leonardo palafox 高红苑圆 Deture Culsign Architecture+Interiors The Cubic Studio

坐标：墨西哥,格雷罗州,胡鲁初加住在树屋里自然元素在这里随机的组合,从世俗禁锢中挣脱出来。看风吹,吹到天空夜幕悄然降临,吹到天空繁星点点。墨西哥,一望无垠的沙漠中仙人掌和龙舌兰肆意生长,掩着神秘面纱的玛雅文化中,也有堪称奇迹... 详细信息

坐标：墨西哥,格雷罗州,胡鲁初加住在树屋里自然元素在这里随机的组合,从世俗禁锢中挣脱出来。看风吹,吹到天空夜幕悄然降临,吹到天空繁星点点。墨西哥,一望无垠的沙漠中仙人掌和龙舌兰肆意生长,掩着神秘面纱的玛雅文化中,也有堪称奇迹的金字塔存在。这里处处散发着浓郁的地方风情,令人好奇、神往。在墨西哥格雷罗州胡鲁初加,你可以住在原始风格的竹筒房中,面朝大海,看日升日落,轻松惬意,放松身心。

关键词：格雷罗玛雅文化普拉亚胡鲁繁星点点自然元素龙舌兰酒店仙人掌竹筒