检索结果-南通市图书馆

Species diversity of thrips (Thysanoptera) in selected avocado orchards from Mexico based on morphology and molecular data

引用

Journal of Integrative Agriculture 2018年第11期17卷 2509-2517页

作者： Daniel Bravo-Perez Ma. Teresa Santillbn-Galicia Roberto M. Johansen-Naime Hector Gonzalez-Hernandez Obdulia L. Segura-Leon Daniel L, ochoa-martinez Stephanie Guzman-Valencia Posgrado en Fitosanidad-Entomologia y Acarologia Colegio de Postgraduados Km 36.5 Carretera Mexico-Texcoco Montecillo Texcoco Estado de Mexico 56230 Mexico Instituto de Biologia de la Universidad Nacional Autonoma de Mexico (IBUNAM) Circuito exterior s/n Ciudad Universitaria Coyoacan Ciudad de Mexico 04510 Mexico Posgrado en Fitosanidad-Fitopatologia Colegio de Postgraduados Km 36.5 Carretera Mexico-Texcoco Montecillo Texcoco Estado de Mexico 56230 Mexico

Avocado is one of the most important crops in the world, and Mexico is the largest producer of this fruit. Several insect pests affect its production, and thrips are amongst the most important. A key step in the design of control methods is accurate species identification. Despite this, formal reports on species diversity of thrips in Mexico are very scarce. Morphological identification can sometimes be time-consuming and inconclusive. Therefore, we explored the species diversity of thrips in Mexican avocado orchards （Michoacan state） based on partial sequences of the mitochondrial gene cytochrome oxidase subunit I （COl）. Forty-four specimens were analysed, which represented approximately 8% of all individuals collected from five localities distributed in three Municipalities. All specimens were analysed using the COl marker, and specimens within the genera Frankliniella were also analysed using a marker within the D2 domain of the 28S （28SD2） nuclear ribosomal DNA. Molecular identifications were confirmed using morphological taxonomy. Overall, six genera were found （Neohydatothrips, Scirtothrips, Frankliniella, Arorathrips, Caliothrips and Leptothrips）. AII genera contained only one species, except Frankliniella, for which there were six species. Data from the two molecular markers suggest the existence of cryptic species within Mexican F. occidentalis populations.

关键词： molecular taxonomy morphological identification cytochrome oxidase subunit I 28S nuclear ribosomal DNA.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Product decomposition strategy for optimization of supply chain planning

引用

Frontiers of Engineering Management 2018年第4期5卷 466-478页

作者： Braulio BRUNAUD Maria Paz ochoa Ignacio E.GROSSMANN Department of Chemical Engineering Carnegie Mellon University

Optimization of large-scale supply chain planning models requires the application of decomposition strategies to reduce the computational expense. Two major options are to use either spatial or temporal Lagrangean decomposition. In this paper, to further reduce the computational expense a novel decomposition scheme by products is presented. The decomposition is based on a reformulation of knapsack constraints in the problem. The new approach allows for simultaneous decomposition by products and by time periods, enabling the generation of a large number of subproblems, that can be solved by using parallel computing. The case study shows that the proposed product decomposition exhibits similar performance as the temporal decomposition, and that selecting different orders of products and aggregating the linking constraints can improve the efficiency of the algorithm.

关键词： supply chain planning Lagrangean decomposition mixed-integer programming

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Qualitative Perspective of Audit Materiality： Empirical Evidence in Mexico and Colombia

引用

Chinese Business Review 2012年第10期11卷 864-872页

作者： Sergio Ivan Ramirez Cacho martin Alvarez ochoa Maricela Ramirez University of Colima Manzanillo Mexico University of Boyaca Tunja Colombia

Our contribution analyzes the process of convergence with the International Standards of Audit （ISAs）, particularly those that regulate the concept of materiality in Mexico and Colombia. Between other results, across a survey, it is demonstrated why the effective use of the factors that emerge of his qualitative slope can favor the quality of the financial information that publish the audited companies, the usefulness and the comprehensibility of the report of opinion. In general, the reliability, transparency, and relevancy of the financial statements will meet potentially favored with the strict application of these major and better normative instruments.

关键词： qualitative perspective materiality financial statements audit materiality International Federation ofAccountants (IFAC)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A mass-customizable dermal patch with discrete colorimetric indicators for personalized sweat rate quantification

引用

Microsystems & Nanoengineering 2019年第1期5卷 406-417页

作者： Vaibhav Jain Manuel ochoa Hongjie Jiang Rahim Rahimi Babak Ziaie School of Mechanical Engineering Purdue UniversityWest LafayetteIN 47907USA School of Electrical and Computer Engineering Purdue UniversityWest LafayetteIN 47907USA Birck Nanotechnology Center Purdue UniversityWest LafayetteIN 47907USA

In this paper,we present a disposable,colorimetric,user-friendly and mass-customizable dermal patch for chronological collection and discrete real-time in situ measurement of sweat secretion over a small area of *** patch consists of a laminated filter paper patterned into radially arranged channels/fingers with water-activated dyes at their *** channels are filled during perspiration,their tips change color once fully saturated,providing easily identifiable levels of water loss which in turn can be mapped to personal dehydration *** patch can be manufactured at low cost in a variety of sizes to allow hydration monitoring for individuals participating in activities under different conditions(intensity,temperature,humidity,etc.).Furthermore,we describe an analytical model that enables mass customization of such a flexible wearable system accommodating a broad range of sweat rates and volumes to generate patch designs that are personalized to an individual’s sweat rate,desired time of usage,and the temporal resolution of the required *** a proof-of-concept demonstration,we characterized laser-fabricated patches that cover(7 cm×5 cm)area of skin having various wicking materials,thicknesses(180–540μm),and pore sizes(3–11μm).Tests were conducted at various flow rates simulating different sweating intensities in the range of 1.5–15 mg/cm^(2)/*** results for the case of a half-marathon runner targeting 90 min of usage and sweating at a rate of 1.5 mg/cm2/min indicated measurement accuracy of 98.3%when the patch is completely filled.

关键词： patch sizes filled

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Evaluation of antimycobacterium activity of the essential oils of cumin (Cuminum cyminum), clove (Eugenia caryophyllata), cinnamon (Cinnamomum verum), laurel (Laurus nobilis) and anis (Pimpinella anisum) against Mycobacterium tuberculosis

引用

Advances in Biological Chemistry 2013年第5期3卷 480-484页

作者： Andrade-ochoa Sergio Chacón-Vargas Fabiola Nevarez-Moorillon Guadalupe Rivera-Chavira Blanca Hernández-ochoa León Facultad de Ciencias Químicas Universidad Autónoma de Chihuahua Campus Universitario #2 Chihuahua México

In this study Essential oils were used with cumin, cloves, cinnamon, laurel and anis to determine Minimum Inhibitory Concentration (MIC) against Mycobacterium tuberculosis strains. The MICs were determined on M. tuberculosis H37Rv sensitive to all five firstline antituberculosis drugs (streptomycin, isoniazid, rifampicin, ethambutol and pirazinamide), two H37-Rv (CH-8 and CH-15) isoniazid-resistant, two H37Rv (CH-07 and CH-09) rifampicin-resistant, two H37Rv (CH-03 and CH-06) streptomycin-resistant, and two H37Rv (CH-09 and CH-10) ethambutol-resistant using the microplate alamar blue assay. The results obtained showed that the cumin and cinnamon essential oils showed a MIC of 12.5 μg/ml against reference strain H37Rv. The five essential oils used in this study were effective against the isoniazid-resistant variant of H37RV with MIC values in the range 12.5-100 μg/ml, the most potent being the cumin and cin-namon (MIC = 12.5). Similar results were obtained against rifampicin-resistant variant of H37RV with MIC values in the range 12.5-100 μg/ml;the most active ones?in this case were the essential oils of cumin and cloves. The essential oils of anis and laurel were active with MIC value to 100 μg/ml. Clove, cumin, and cinnamon essential oils were active against all strains utilized in this study, with MIC values in the range 6.25 μg/ml to 25 μg/ml.

关键词： Antimycobacterial Activity Essential Oils Monoterpenoids Mycobacterium tuberculosis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Arachidyl amido cholanoic acid improves liver glucose and lipid homeostasis in nonalcoholic steatohepatitis via AMPK and mTOR regulation

引用

World Journal of Gastroenterology 2020年第34期26卷 5101-5117页

作者： David Fernández-Ramos Fernando Lopitz-Otsoa Laura Delacruz-Villar Jon Bilbao martina Pagano Laura Mosca Maider Bizkarguenaga Marina Serrano-Macia Mikel Azkargorta marta Iruarrizaga-Lejarreta Jesús Sot Darya Tsvirkun Sebastiaan martijn van Liempd Felix M Goni Cristina Alonso María Luz martínez-Chantar Felix Elortza Liat Hayardeny Shelly C Lu JoséM Mato Precision Medicine and Metabolism Laboratory Centro de Investigación Cooperativa en Biociencias(CIC bioGUNE)Derio 48160BizkaiaSpain CIBERehd-Centro de Investigación Biomédica en Red de enfermedades hepáticas y digestivas Madrid 28029Spain Department of Precision Medicine University of Campania"Luigi Vanvitelli"Naples 80138Italy Liver Disease Laboratory Centro de Investigación Cooperativa en Biociencias(CIC bioGUNE)Derio 48160Spain Proteomics Platform Centro de Investigación Cooperativa en Biociencias(CIC bioGUNE)Derio 48160Spain OWL Metabolomics Derio 48160Spain Instituto Biofisika(UPV/EHU CSIC)Leioa 48940SpainDepartamento de Bioquímica y Biología MolecularUniversidad del País VascoLeioa 48940Spain Pre-clinical and Chemistry Manufacturing and ControlsGalmed PharmaceuticalsTel Aviv 6578317Israel Metabolomics Platform Centro de Investigación Cooperativa en Biociencias(CIC bioGUNE)Derio 48160Spain Division of Digestive and Liver Diseases Cedars-Sinai Medical CenterLos AngelesCA 90048United States

BACKGROUND Arachidyl amido cholanoic acid(Aramchol)is a potent downregulator of hepatic stearoyl-CoA desaturase 1(SCD1)protein expression that reduces liver triglycerides and fibrosis in animal models of *** a phase IIb clinical trial in patients with nonalcoholic steatohepatitis(NASH),52 wk of treatment with Aramchol reduced blood levels of glycated hemoglobin A1c,an indicator of glycemic *** To assess lipid and glucose metabolism in mouse hepatocytes and in a NASH mouse model[induced with a 0.1%methionine and choline deficient diet(0.1MCD)]after treatment with *** Isolated primary mouse hepatocytes were incubated with 20μmol/L Aramchol or vehicle for 48 ***,analyses were performed including Western blot,proteomics by mass spectrometry,and fluxomic analysis with 13C-uniformly labeled *** the in vivo part of the study,male C57BL/6J mice were randomly fed a control or 0.1MCD for 4 wk and received 1 or 5 mg/kg/d Aramchol or vehicle by intragastric gavage for the last 2 *** metabolomics were assessed using ultra-high-performance liquid chromatography-time of flight-MS for the determination of glucose metabolism-related *** Combination of proteomics and Western blot analyses showed increased AMPK activity while the activity of nutrient sensor mTORC1 was decreased by Aramchol in *** translated into changes in the content of their downstream targets including proteins involved in fatty acid(FA)synthesis and oxidation[PACCα/β(S79),SCD1,CPT1A/B,HADHA,and HADHB],oxidative phosphorylation(NDUFA9,NDUFB11,NDUFS1,NDUFV1,ETFDH,and UQCRC2),tricarboxylic acid(TCA)cycle(MDH2,SUCLA2,and SUCLG2),and ribosome(P-p70S6K[T389]and P-S6[S235/S236]).Flux experiments with 13Cuniformely labeled glucose showed that TCA cycle cataplerosis was reduced by Aramchol in hepatocytes,as indicated by the increase in the number of rounds that malate remained in the TCA ***,liver metabolomic analysis showed

关键词： Nonalcoholic fatty liver disease Steatohepatitis Methionine and choline deficient diet Tricarboxylic acid cycle Hemoglobin A1c Stearoyl-CoA desaturase 1

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effects of western juniper(Juniperus occidentalis)control on ecosystem nitrogen stocks in central Oregon,USA

引用

Journal of Plant Ecology 2021年第6期14卷 1073-1089页

作者： Mohamed A.B.Abdallah Ricardo Mata-González Jay S.Noller Carlos G.ochoa Department of Animal and Rangeland Sciences Oregon State UniversityCorvallisOR 97331USA Department of Crop and Soil Science Oregon State UniversityCorvallisOR 97331USA

Aims In the Oregon of USA,the control of western juniper(Juniperus occidentalis)is an accepted rangeland management practice to restore sagebrush steppe habitats of importance to wildlife and *** effects of juniper cutting on ecosystem nitrogen,however,have not been well addressed although woody plant control has important implications for local watershed management and regional nitrogen *** We quantified ecosystem nitrogen stocks in two adjacent watersheds,comprised of a treated watershed(most juniper removed)and an untreated watershed(juniper not removed).Thirteen years after juniper removal,we measured aboveground nitrogen stocks for juniper trees,shrubs,grasses and litter in both *** also measured belowground nitrogen stocks(roots and soil)in both watersheds at two soil depths(0–25 and 25–50 cm).Important Findings Aboveground nitrogen stocks were 6.9 times greater in the untreated than in the treated watershed considering the much larger aboveground ***,root nitrogen stocks were 3.1 times greater in the treated one due to the gain of understory root biomass associated with juniper *** nitrogen stocks at both 0–25 and 25–50 cm depths were not affected by juniper ***,total ecosystem nitrogen stocks did not differ between the treated(9536 kg N ha−1)and untreated(9456 kg N ha−1)*** greatest ecosystem nitrogen accumulation(at least 95%total ecosystem nitrogen)resided belowground(soil 0–50 cm and roots)in both *** study provides evidence that the benefits of juniper removal can be attained without significantly affecting the capacity of ecosystem nitrogen storage.

关键词： aboveground nitrogen stock belowground nitrogen stock ecosystem nitrogen Juniperus occidentalis soil nitrogen woody plant encroachment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Wear Evaluation of Copper-Nickel-Aluminum Alloys under Extreme Conditions

引用

Journal of Minerals and Materials Characterization and Engineering 2023年第1期11卷 16-26页

作者： Rene Guardian Isai Rosales-Cadena Constancio Diaz-Reyes Juan Antonio Ruiz-ochoa Center for Research in Engineering and Applied Sciences Autonomous University of State of Morelos Cuernavaca Mexico Faculty of Sciences of the Enginery and Technology UABC Tijuana Mexico

Cu-Ni-Al alloys at different concentrations were obtained using a high frequency induction melting unit, keeping a balance in the nominal compositions. Light alloys are important to be used in industrial applications. Aluminum additions result in a positive hardness increment of the ternary alloys in comparison with the binary Cu-Ni alloys. Generalized wear mechanisms of the alloys with low aluminum content are basically type abrasive, while samples with 5 and 10 at.% Al present an oxidative-adhesive wear mechanism. Wear results have indicated that aluminum addition affects positively the wear resistance, mainly in samples with high aluminum content product of the creation during the test of different oxides corresponding to the elements present in the alloys.

关键词： Copper Nickel Alloys Hardness Mechanical Properties Heat Treatment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effects of a 3-month vigorous physical activity intervention on eating behaviors and body composition in overweight and obese boys and girls

引用

Journal of Sport and Health Science 2019年第2期8卷 170-176页

作者： María martín-García Luis M.Alegre Beatriz Garcia-Cuartero Eleanor J.Bryant Bernard Gutin Ignacio Ara GENUD Toledo Research Group Universidad de Castilla-La Mancha Endocrinology and Diabetes Unit Department of Pediatrics Hospital Severo Ochoa Division of Psychology University of Bradford Georgia Prevention Institute Department of Pediatrics Georgia Health Sciences University

Purpose: This study aims to analyze the effects of a 3-month vigorous physical activity(VPA) intervention on eating behavior and body composition in overweight and obese children and ***: Forty-seven participants(7–16 years) took part in the study: 28 were assigned to the intervention group(IG)(10 boys and 18 girls) and19 in a control group(CG)(8 boys and 11 girls). Body composition(dual-energy X-ray absorptiometry), anthropometrics(body mass, height, and body mass index(BMI)), and eating behavior traits(Three-Factor Eating Questionnaire-R21 C) were determined before and after the VPA ***: A decrease in the percentage of body fat and BMI(-2.8% and-1.8%, respectively), and an increase in most lean mass variables were found in the IG(all p ≤ 0.05). In relation to the eating behavior traits, IG subjects showed a 14% reduction in the Emotional Eating score(p = 0.04),while Cognitive Restraint score did not change after the VPA intervention. The baseline factors of the questionnaire predicted changes in body mass and fat mass variables only in the ***: A 3-month VPA intervention influenced eating behaviors of overweight or obese young, especially the Emotional Eating factor, in the presence of favorable body composition changes.

关键词： Appetite Children Exercise Obesity TFEQ-R21 Young

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Stratification Analysis of Certain Nakayama Algebras

引用

Advances in Pure Mathematics 2015年第14期5卷 850-855页

作者： José Fidel Hernández Advíncula Rafael Francisco ochoa de la Cruz Department of Mathematics Havana University Havana Cuba

Our purpose in these notes is to present a result for a specific Nakayama Algebra. In essence, it affirms that for any order of simple modules, the cyclic Nakayama Algebras with relations (i.e. ) are not standardly st... 详细信息

关键词： Standardly Stratified Cyclical Nakayama Algebras Infinite Projective Dimension

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：