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科技译丛（长沙） 1994年第3期 5-14页

作者：黄明谦 del.,ma

Wheat genotypic variability in grain yield and carbon isotope discrimination under Mediterranean conditions assessed by spectral reflectance

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Journal of Integrative Plant Biology 2014年第5期56卷 470-479页

作者： Gustavo A. Lobos Iván matus Alejandra Rodriguez Sebastián Romero-Bravo José Luis Araus Alejandro del Pozo Plant Breeding and Phenomic Center Faculty of Agricultural Sciences University of Talca CRI-Quilamapu Agricultural Research Institute Plant Physiology Department Faculty of Biology University of Barcelona

A collection of 368 advanced lines and cultivars of spring wheat（Triticum aestivum L.） from Chile, Uruguay, and CIMMYT（Centro Internacional de Mejoramiento de maíz y Trigo）, with good agronomic characteristics were evaluated under the Mediterranean conditions of central Chile. Three different water regimes were assayed： severe water stress（SWS, rain fed）, mild water stress（MWS; one irrigation around booting）, and full irrigation（FI; four irrigations： at tillering,flag leaf appearance, heading, and middle grain filling）. Traits evaluated were grain yield（GY）, agronomical yield components,days from sowing to heading, carbon isotope discrimination（△^13C） in kernels, and canopy spectral reflectance. Correlation analyses were performed for 70 spectral reflectance indices（SRI） and the other traits evaluated in the three trials. GY and △^13C were the traits best correlated with SRI, particularly when these indices were measured during grain filling. However,only GY could be predicted using a single regression, with ResearchNormalized Difference Moisture Index（NDMI2： 2,200; 1,100）having the best fit to the data for the three trials. For △^13C, only individual regressions could be forecast under FI（r^2： 0.25–0.37）and MWS（r^2： 0.45–0.59） but not under SWS（r^2： 0.03–0.09）.NIR‐based SRI proved to be better predictors than those that combine visible and NIR wavelengths.

关键词： Breeding drought dry matter index normalized difference moisture index vegetative index water index

Sexual Attitudes among College Students: An Approach in Mexico

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Open Journal of Obstetrics and Gynecology 2015年第7期5卷 400-405页

作者： Aurora Montanez-Frausto Aliciaálvarez Aguirre Georgina Olvera-Villanueva ma.Teresa Hernández Ramos Nereyda Hernández Nava ma.del Rocio Rocha-Rdz Department of Nursing and Midwifery Health Sciences DivisionCampus LeónUniversity of GuanajuatoGuanajuatoMexico Nursing Department Campus Health Sciences and EngineeringUniversity of GuanajuatoGuanajuatoMexico School of Nursing Autonomous University of QueretaroSantiago de QuerétaroMexico Department of Nursing Academic Coordination Altiplano RegionAutonomous University of San Luis PotosiSan Luis PotosiMexico Department of Nursing Multidisciplinary Academic Unit Central ZoneAutonomous University of San Luis PotosiSan Luis PotosiMexico

Objective: To develop a predictive model for HIV/AIDS in the sexual behavior of university students from a public university in the state of Guanajuato. Methodology: Correlational study involved 294 university students from 18 to 19 years of age by stratified random sampling. The instruments used were: attitudes, subjective norms, self-efficacy and intentions for HIV/AIDS and sexual behavior. Descriptive statistics, normality test of Kolmogorov-Smirnov test, Spearman correlation and logistic regression was used. Results: In describing sexual behavior of young students at the beginning of sexual life is observed that 61.9% of them have had sexual life, with higher per- centage in men. Of the 182 university students who reported first sexual intercourse used a contraceptive method 138 and 135 specifically used a condom the first time they had sex. The variables that have the ability to predict the sex drive at the start of sexual life, are the attitudes and perceived behavioral control (X2 = 39,638, df = 4, p < 0.000), reporting a 12.6% of explained variance. Conclusions: In general, university students today are perceived as vulnerable to sexual behavior and have safe sex, which leads us to think that protect not get HIV/AIDS and unwanted pregnancies.

关键词： HIV/AIDS Youth Sexual Behavior Attitudes Intentions Subjective Norms

Natural and Anthropogenic Influence in Water Quality:The Case of Linares City,NE Mexico

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Journal of Water Resource and Protection 2013年第11期5卷 1066-1075页

作者： Liliana Lizarraga-Mendiola Jose Navar Alberto Blanco-Pinon ma.del Refugio Gonzalez-Sandoval Hector De-Leon-Gomez Area Academica de Ingenieria Universidad Autonoma del Estado de Hidalgo.Mineral de la ReformaHidalgoMexico Centro Interdisciplinario de Investigacion para el Desarrollo Integral Regional Instituto Politecnico Nacional.DurangoDurangoMexico Area Academica de Ciencias de la Tierra y materiales Universidad Autonoma del Estado de Hidalgo.Mineral de la ReformaHidalgoMexico Instituto de Ingenieria Civil Universidad Autonoma de Nuevo LeonMonterreyNuevo LeonMexico

The aim of this research paper was to identify whether the water quality had been influenced either by the natural environment or by anthropogenic activities or both in the municipality of Linares, the second largest city of the State of Nuevo Leon, NE Mexico. The superficial water (Pablillo River) and the groundwater quality (from a fractured and a porous aquifers hydraulically interconnected) were determined by comparing their chemical composition with maximum permissible limits for water consumption and irrigation use. A hydrogeochemical modeling was performed to identify the distribution of aqueous species responsible for the presence of some dissolved or precipitated mineral species, as well as an identification of geochemical factors responsible of superficial and groundwater quality. A canonical correspondence analysis was allowed to determine if the natural environment and/or anthropogenic activities were responsible for water quality. The parameters analysed in both aquifers, as well as in the Pablillo River, were total solids, suspended solids, nitrate, and chloride;barium and mercury were present in both aquifers. As a natural influence, the predominant mineral species are as following: under-saturated anhydrite (porous aquifer), over-saturated aragonite, calcite, dolomite, and gypsum (both aquifers and Pablillo River), barite and whiterite (only in fractured aquifer). The geochemical factors responsible for natural contamination were rock dominance (fractured aquifer), and evaporation dominance (porous aquifer, Pablillo River). On the other hand, anthropogenic activities such as changes in soil use and the presence of point (old municipal landfill, pig farms, barite deposit), and diffuse (agricultural areas, septic tanks and latrines) pollution sources had influence in the presence of contaminants such as total and fecal coliforms, nitrates, chlorides, mercury and barium. Several control and remediation strategies should be taken into account to prevent

关键词： Fractured Aquifer Pablillo River Pollution Sources Porous Aquifer Water Quality

Development of a core set of SNP markers for the identifi cation of upland cotton cultivars in China

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Journal of Integrative Agriculture 2016年第5期15卷 954-962页

作者： KUANG Meng WEI Shou-jun WANG Yan-qin ZHOU Da-yun ma Lei FANG Dan YANG Wei-hua ma Zhi-ying Hebei Research Base for State Key Laboratory of Cotton Biology/College of Agronomy Hebei Agricultural University Institute of Cotton Research Chinese Academy of Agriculture Sciences

Considering the advantages of single nucleotide polymorphisms（SNP） in genotyping and variety identification, the first set public SNP markers at Cotton marker Database（http：//***/） were validated and screened across standard varieties of cotton distinctness, uniformity and stability（DUS） test, aiming to obtain an appropriate set of core SNP markers suitable for upland cotton cultivars in China. A total of 399 out of 1 005 SNPs from 270 loci including 170 insertions-deletions（In dels） were evaluated for their polymorphisms among 30 standard varieties using Sanger sequencing. As a result, 147 loci were sequenced successfully, 377 SNPs and 49 In dels markers were obtained. Among the 377 SNP markers, 333 markers（88.3%） were polymorphic between Gossypium hirsutum and G. barbadense, while 164 markers（43.5%） were polymorphic within upland cotton. As for In del markers, the polymorphic rate is relatively lower than that of SNP both between species and within species. The homozygous DNA locus ratio of 121 SNPs was higher than 86.2% while that of other 43 SNPs was less than 70%. Only 64 SNPs displayed completely homozygous genotypes among all of the detected upland cotton varieties with 100% homozygous DNA locus ratio. At last, a set of 23 pairs of core SNPs were achieved in view of avoidance of linkage, with polymorphism information content（PIC） values varying from 0.21 to 0.38 with an average of 0.28. Genotype characteristics and genetic diversity were analyzed based on the set of core markers, while 40 pairs of core simple-sequence repeats（SSR） primers comprised of 10 sets of four multiplex PCR combinations were also used for analysis based on fluorescence detection system. Comparison results indicated that the genetic diversity level was almost equal, while various varieties were significantly different from each other. Genetic relationship revealed by SSR markers is related to geographic source to a certain extent. Meanwhile clustering results analyzed b

关键词： upland cotton core SNP DUS genotyping

1例常染色体隐性遗传脊髓小脑共济失调1型的临床特点及基因分析

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中风与神经疾病杂志 2024年第8期41卷 753-756页

作者：杨丽马子珊马伯年罗嘉嘉张维杨智峰任紫晗兰甜甜陈桂生宁夏医科大学第一临床医学院宁夏银川750004 宁夏医科大学总医院神经内科宁夏银川750004 宁夏颅脑疾病重点实验室宁夏银川750004

本研究对1例因SETX基因突变引起常染色体隐性遗传脊髓小脑共济失调1型(SCAR1)的患者进行了临床表型分析及基因检测。通过病史采集、神经系统查体、影像学检查、神经电生理检查及基因学分析,发现该患者9号染色体上的SETX基因存在复合杂... 详细信息

本研究对1例因SETX基因突变引起常染色体隐性遗传脊髓小脑共济失调1型(SCAR1)的患者进行了临床表型分析及基因检测。通过病史采集、神经系统查体、影像学检查、神经电生理检查及基因学分析,发现该患者9号染色体上的SETX基因存在复合杂合突变:c.5812C>T(p.Q1938X)和c.501_508del,这些突变位点分别位于第14外显子和第6外显子,且此前尚未在文献中报道。本研究首次发现这两个突变可引起SCAR1,为进一步理解SETX基因在SCAR1中的致病机制提供了新的线索,并可能为未来类似病例的诊断和治疗提供参考。

关键词：常染色体隐性脊髓小脑共济失调1型共济失调伴眼动失用2型 AOA2 SETX 复合杂合突变

Identification of major Locus Bph35 Resistance to Brown Planthopper in Rice

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Rice science 2020年第3期27卷 237-245页

作者： ZHANG Yuexiong QIN Gang ma Qianqian WEI Minyi YANG Xinghai ma Zengfeng LIANG Haifu LIU Chi LI Zhenjing LIU Fang HUANG Dahui LI Rongbai College of Agriculture and State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources Guangxi UniversityNanning 530007China Rice Research Institute Guangxi Academy of Agricultural SciencesNanning 530007China

An introgression line RBPH660,derived from wild rice Oryza rufipogon,showed stable resistance to brown planthopper(BPH).Segregation analysis indicated BPH resistance of RBPH660 was controlled by multiple genes/*** using the bulked segregant analysis(BSA)-seq method,two genomic regions harboring QTLs resistance to BPH were identified from 1.20 to 16.70 Mb on chromosome 4 and from 10.20 to 12.60 Mb on chromosome 9 in RBPH660,respectively.A major resistance locus,designated as Bph35 accounting for 51.27%of the phenotypic variation with a LOD score of 42.51,was mapped to the candidate region of chromosome 4 between In del(insertion-deletion)markers PSM16 and R4 *** fine mapping of Bph35,one simple sequence repeat and three newly developed In del markers were used to screen the ***,the Bph35 locus was delimited in the region from 6.28 to 6.93 Mb and there were 18 predicted protein-encoding genes with a total of 114 non-synonymous single nucleotide polymorphism(SNP)variant sites between the resistant and susceptible *** of these genes,Os04 g0193950,encoding a putative NB-ARC(nucleotidebinding adaptor shared by APAF-1,R proteins and CED-4)and LRR(leucine-rich repeat)domain protein with nine non-synonymous SNP substitutions in its coding sequence regions,might be the candidate gene for *** findings would facilitate the map-based cloning of the Bph35 gene and development of resistant varieties against BPH in rice.

关键词： rice brown planthopper Bph35 bulked segregant analysis(BSA)-seq method gene mapping

Diagnostic Performance of Serial bedside Capillary Lactate, Hemoglobin, and Shock Index for Severe Postpartum

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Advances in Reproductive Sciences 2021年第4期9卷 189-198页

作者： Roberto Arturo Castillo-Reyther Idelia Natalie Plata-Alcocer Salvador De la maza-Labastida Venance Basil Kway ma. del Pilar Fonseca-Leal Department of Obstetrics and Gynecology Hospital Central Dr. Ignacio Morones Prieto San Luis Potosi Mexico Research and Clinical Postgraduate Department of the Faculty of Medicine Universidad Autonoma de San Luis Potosi Mexico

Objective: To assess the diagnostic capacity of bedside capillary lactate (CLact), capillary Haemoglobin (CHb), and shock index (SI) for severe postpartum haemorrhage (SPPH > 2000 ml) at diagnosis, 15 minutes and 30 minutes later. Method: A cohort study was carried out in a reference hospital in San Luis Potosi, Mexico from February 2020 to March 2021, and included sixty women in vaginal labor or c-section who presented PPH (≥500 ml in labor or ≥1000 ml in c-section) measured by the gravimetric method. CLact, SI, and CHb concentrations were analyzed at diagnosis of PPH, 15 minutes, and 30 minutes. Patients who presented total blood loss of >2000 ml were considered SPPH. A T-test or Wilcox test was performed to compare the groups of non-severe and severe. Sensitivity, specificity, and performance were calculated by A Receiver Operating Curve. Results: A CLact measurement at 30 minutes was significantly different between the non-severe and severe groups (4.0 + 1.9 vs 4.8 + 1.15 P-value 0.001, with an optimal cut point of 4.3 mmol/dl at AUC 0.75, sensitivity 0.85, and specificity of 0.62. With a cut-point of 1.17, an AUC of 0.76, sensitivity of 0.43, and specificity of 0.98, SI at diagnosis was significantly different between the non-severe and severe groups (0.70 + 0.20 vs. 0.90 + 0.38 P-value 0.0228). Conclusion: SI is an early sign of SPPH;CLact can significantly identify SPPH after 30 minutes.

关键词： Capillary Haemoglobin Lactate Obstetric Haemorrhage Shock Index

Trehalose and Sucrose Osmolytes Accumulated by Algae as Potential Raw material for Bioethanol

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Natural Resources 2011年第3期2卷 173-179页

作者： ma.del Pilar Bremauntz Luis G.Torres-Bustillos Rosa-Olivia Canizares-Villanueva Enrique Duran-Paramo Luis Fernández-Linares Laboratory of Bioprocesses Department of BioprocessesUnidad Profesional Interdisciplinaria de Biotecnologia UPIBI-Instituto Politecnico NacionalMexico CityMexico Departamento de Biotecnologia y Bioingenieria Centro de Investigacion y de Estudios Avanzados-IPNMexico CityMexico

Currently, obtaining sustainable fuels, such as biodiesel and bioethanol, from cheap and renewable materials is a challenge. In recent years, a new approach being developed consists of producing, sugars from algae by photosynthesis. Sugar accumulation can be increased under osmotic stress (osmoregulation). The aim of this study is to show the pro-duction of sugars from algae, isolated from natural sources, and the effect of osmotic stress on fermentable sugars ac-cumulation. Strain isolation, production of sugars from each alga and the effect of osmotic stress on growth and sugar production are described. Twelve algal strains were isolated, showing growths between 0.6 and 1.8 g of biomass dry weight /L, all with production of intracellular and extracellular sugars. The strain identified as Chlorella sp. showed an increase in sugar production from 23.64 to 421 mg of sugars/g of biomass dry weight after 24 h of osmotic stress with 0.4 M NaCl. Sucrose and trehalose, both fermentable sugars, were the compatible osmolytes accumulated in response to the osmotic stress. The isolated strains are potential producers of fermentable sugars, using the photosynthetic pathway and osmotic stress.

关键词： Algae Biofuels Osmoregulators Carbohydrates Bioethanol

A Revised Checklist of Amphibians and Reptiles in Camiguin Sur,Misamis Oriental,Mindaanao,Philippines

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Asian Herpetological Research 2020年第1期11卷 28-43页

作者： Russell Evan L·VENTURINA Ynigo Luis C·del PRADO Rhim Ayyah C·KAMIR marlon N·BALMORES Arvin C·DIESMOS Department of Biology College of ScienceDe La Salle UniversityTaft AvenueManila The Graduate School University of Santo TomasEsparaManila Mindanao State Uniersity-ligan Institute of Technology Iligan CityMindanao Herpetology Section Zoology DivisionNational Museum of Natural HistoryPhilippines

The Philippines is listed as one of the world's megadiverse countries despite its small ***,it is also on the list of global biodiversity conservation *** the threat of extinction at an all-time high,better understa nding of the archipelago's biodiversity will provide invalua ble baseline information for proper conservation *** we provide an upda ted checklist on the herpetological biodiversity of Ca miguin Sur,Misa mis Oriental,Minda nao,*** surveys and specimen collection from the municipality of mambajao resulted in a total of 28 species(13 anurans,11 lizards,and four snakes)-all well represented by voucher *** data provides seven additional species records,upda ting the island's total amphibian and reptile species count to 57,with about half Philippine *** in the new records are three invasive alien species of amphibians:The Cane Toad Rhinella marina,the Greenhouse Frog Eleutherodatylus planirstris,and the Asiatic Painted Narrowmouth Toad Kaloula pulchra.

关键词： Camiguin Sur amphibians and reptiles biodiversity Conservation