检索结果-南通市图书馆

Open Journal of Air Pollution 2017年第4期6卷 149-164页

作者： Jorge Herrera Murillo josé Félix Rojas Marín Víctor hugo Beita guerrero josé Chinchilla Salazar Environmental Analysis Laboratory Environmental Sciences School National University Heredia Costa Rica

The surface flux emissions for volatile organic compounds (VOC’s) (alcohols and aromatic species), priority carbonyls and greenhouse gases, were measured in three different final disposal sites for urban solid waste located in the metropolitan area of Costa Rica, between July and October 2014. The emissions fluxes were determined using the static sampling chamber technique coupled to two different adsorption tubes: active charcoal (Supelco, ORBO 32) to capture BTEX and alcohols;and 2,4-DNPH coated silica gel (SKC, 226-119) for carbonyls. As for the VOCs, the BTEX, Alcohols, and Carbonyls total fluxes were in the range of 3 to 258, 1 to 318 and 0.4 to 8.5 mg/(m2día), respectively. The magnitudes per site were in the following order La Carpio > El Huaso > Rio Azul. Ethanol and BTEX presented a high correlation in all the cases because possibly they are sharing the same sources or formation mechanisms. The emission fluxes spatial distributions among the sites were very variable and dependent on the location of the active cells and their age. Only La Carpio showed a more homogeneous distribution due to its middle age.

关键词： GHG Volatile Organic Compounds Costa Rica Landfills Surface Emission Fluxes

Brassinosteroids and Plant Responses to Heavy Metal Stress. An Overview

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Metal 2013年第2期3卷 34-41页

作者： Miriam Núnez Vázquez Yanelis Reyes guerrero Lisbel martínez González Walfredo Torres de la Noval Department of Plant Physiology and Biochemistry National Institute of Agricultural SciencesSan Joséde las LajasCuba

Soil contamination with heavy metals has become a world-wide problem, leading to the loss in agricultural productivity. Plants have a remarkable ability to take up and accumulate heavy metals from their external environment and it is well known that high levels of heavy metals affect different physiological and metabolic processes. Brassinosteroids are considered as the sixth class of plant hormones and they are essential for plant growth and development. These compounds are able of inducing abiotic stress tolerance in plants. In this paper, information about brassinosteroids and plant responses to heavy metal stress is reviewed.

关键词： Heavy Metal Stress Brassinosteroids Tolerance

Glycoprotein biomarkers for the detection of pancreatic ductal adenocarcinoma

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 Gastroenterology 2018年第24期24卷 2537-2554页

作者： Esther Llop Pedro E guerrero AdriàDuran Sílvia Barrabés Anna Massaguer María joséFerri Maite Albiol-Quer Rafael de Llorens Rosa Peracaula Department of Biology Biochemistry and Molecular Biology UnitUniversity of GironaGirona 17003Spain Biomedical Research Institute of Girona(IdIBGi).Parc Hospitalari martíi Julià-Edifici M2 Salt 17190Spain Clinic Laboratory University Hospital Dr Josep TruetaGirona 17007Spain Department of Surgery Hepato-biliary and Pancreatic Surgery UnitUniversity Hospital Dr Josep TruetaGirona 17007Spain

Pancreatic cancer(Pa C) shows a clear tendency to increase in the next years and therefore represents an important health and social challenge. Currently, there is an important need to find biomarkers for PaC early detection because the existing ones are not useful for that purpose. Recent studies have indicated that there is a large window of time for PaC early detection, which opens the possibility to find early biomarkers that could greatly improve the dismal prognosis of this tumor. The present manuscript reviews the state of the art of the existing PaC biomarkers. It focuses on the anomalous glycosylation process and its role in PaC. Glycan structures of glycoconjugates such as glycoproteins are modified in tumors and these modifications can be detected in biological fluids of the cancer patients. Several studies have found serum glycoproteins with altered glycan chains in PaC patients, but they have not shown enough specificity for PaC. To find more specific cancer glycoproteins we propose to analyze the glycan moieties of a battery of glycoproteins that have been reported to increase in PaC tissues and that can also be found in serum. The combination of these new candidate glycoproteins with their aberrant glycosylation together with the existing biomarkers could result in a panel, which would expect to give better results as a new tool for early diagnosis of PaC and to monitor the disease.

关键词： Pancreatic cancer Aberrant glycosylation Glycoproteins Biomarkers Diagnosis

Behavior of Surface Sediment from the joséAntonio Alzate Dam in Mexico as a Deposit of Heavy Metals

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Protection 2018年第10期9卷 1049-1065页

作者： Icela Dagmar Barceló-Quintal hugo Eduardo Solís-Correa Julisa García-Albortante Magdalena García-martínez Luis Jesús Osornio-Berthet Area of Chemistry and Physical Chemistry Environmental Division of Basic Sciences and Engineering University Autonomous Metropolitan—Azcapotzalco Mexico City Mexico

The problem of contamination of Lerma River in the State of Mexico, México, has been studied in an integral way, since it is one of the rivers of importance due to its geographical situation in the country. josé Antonio Dam is the main receiving body of this river that is being contaminated by, industrial wastewater, of which about 70% is inorganic, as well as discharges municipal and agricultural, driving a lot of material in suspension. This dam acts as a regulator of avenues and its water is used for agricultural irrigation and its sediments are used as sludge to improve agricultural soil in the surroundings. One of the studies that have been carried out is to determine the geochemical distribution of heavy metals in the sediments of this dam, as well as its adsorptive capacity towards different metals. It has been observed that these sediments acts as metal contaminants sequester. Knowing the composition and morphology of these sediments can provide information to understand the mobility of different heavy metals it contains, and potential health risk, which can finally lead to the establishment of purification capacity of this sludge.

关键词： Lerma River josé Antonio Alzate Dam Sediment Heavy Metal

Upper Blepharoplasty Scar and Patient Satisfaction Evaluation in a Plastic Surgery Center in Mexico

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Biosciences and Medicines 2020年第6期8卷 77-88页

作者： Victor hugo Avalos Gómez Jaime Aron García Espinoza josé Carlos martínez López Carlos Illich Navarro Delgadillo Blanca Yadira Arámbula Sánchez Alejandro Costa Dulche Cuahutemoc Márquez Espriella Esteban Israel Campos Serna Division of Plastic and Reconstructive Surgery Hospital Central Sur de Alta Especialidad de Petróleos Mexicanos Mexico City Mexico

Background: Eyes are one of the most important facial features, their appearance being associated with state of mind, age and beauty. Therefore, upper blepharoplasty is one of the most common procedures performed in plastic surgery. Standardized tools allow for measurement of outcomes through patient satisfaction and surgeon experience. Objectives: Our objective was to measure the satisfaction index and scar quality of patients who underwent upper blepharoplasty using the Patient-reported Outcome Measure Questionnaire (PROM-Q) and Patient and Observer Scar Assessment Scale (POSAS). Methods: A retrospective review of patients that underwent upper blepharoplasty in our institution was performed. We included those with a preoperative anthropometric analysis, standardized incision markings (developed in our center), same operative technique and a 3-month postoperative evaluation with PROM-Q and POSAS. The sample for this study consists of 67 patients, all of them operated between January 1 2019 and June 30 2019 at the Department of Plastic Surgery, South Central High Specialty Hospital, Pemex, Mexico City, Mexico. Results: A total of 67 patients were included, 73% female and 27% male. The most frequent indication for surgery was functional visual symptoms. The index of PROM-Q at 3 months demonstrated an increased satisfaction above 90%, and the evaluation with POSAS reported an almost imperceptible scar. Conclusion: Evaluating outcomes with objective tools provides data useful to improve the surgical protocols of patients subjecting to aesthetic procedures.

关键词： Upper Blepharoplasty Satisfaction Index PROM-Q Quality of Life Scar

Alternancy Study on Rambutan(Nephelium lappaceum L.)Tree in Mexico

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Plant Sciences 2017年第1期8卷 40-52页

作者： Rubén Joo-Pérez Carlos hugo Avenda?o-Arrazate Alfredo Sandoval-Esquivez Saúl Espinoza-Zaragoza Moisés Alonso-Báez josé Luís Moreno-martínez Rafael Ariza-Flores Carlos Raúl Morales-Nieto Faculty of Agricultural Sciences Autonomous University of ChiapasHuehuetanMexico National Forestry Crops and Livestock Research Institute(INIFAP)Experimental Station Rosario IzapaTuxtla ChicoMexico Autonomous University of Chiapas HuehuetanMexico INIFAP Experimental Station IgualaGuereroMexico Autonomous University of Chihuahua ChihuahuaMexico

Rambutan growing in the state of Chiapas has brought about a demand for new plantations;however, this species has several biotic and abiotic factors that limit its production. These factors include phytosanitary problems, deficient agronomical handling, and production alternancy. Because of this, the objective of the present study was to evaluate the effect of the application of agronomical practices such as pruning, ringing, water stress, and their interaction on the rambutan alternancy. The experiment was carried out in the “La Chinita” commercial orchard located on KM. 4.5 the Huehuetan Station, municipality of Huehuetan, Chiapas, Mexico. We used 48 rambutan trees in production with an age of 14 years. Two production cycles were evaluated. The experiment was established under a divided plot experimental design in random complete blocks with a factorial arrangement and six replicates;each tree being a replicate. The study factors were: water stress, pruning, girdling, irrigation (control), and their combinations, resulting in eight treatments. The evaluation was done during flowering, fruit set, and harvest. In flowering, the treatments with permanent irrigation in both evaluated cycles (2010-2011 and 2011-2012) manifested a production alternancy behavior, with an average 36.4% flowering in the first evaluation cycle and increased to 82.1% in the second cycle. The treatments with water stress kept a proportional flowering during the first and second cycles of 97.9% and 95.3%, respectively. The water stress influenced the bunch weight (PR) variable fruit set with bigger fruits and higher bunch weight than the irrigated treatments. In production, pruning and girdling together with water deficit had no alternancy in both production cycles.

关键词： Nephelium lappaceum L. Water Stress Pruning Girdling Irrigation

Could Grasshoppers Be a Nutritive Meal?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Dendritic cell deficiencies persist seven months after SARS-CoV-2 infection

Food and Nutrition Sciences 2012年第2期

作者： Julieta Ramos-Elorduy Blásquez josé Manuel Pino Moreno Víctor hugo martínez Camacho

来源：评论

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2021年第9期18卷 2128-2139页

作者： Alberto Pérez-Gómez Joana Vitallé Carmen Gasca-Capote Alicia Gutierrez-Valencia María Trujillo-Rodriguez Ana Serna-Gallego Esperanza Muñoz-Muela María de los Reyes Jiménez-Leon Mohamed Rafii-El-Idrissi Benhnia Inmaculada Rivas-Jeremias Cesar Sotomayor Cristina Roca-Oporto Nuria Espinosa Carmen Infante-Domínguez Juan Carlos Crespo-Rivas Alberto Fernández-Villar Alexandre Pérez-González Luis Fernando López-Cortés Eva Poveda Ezequiel Ruiz-Mateos joséMiguel Cisneros Sonsoles Salto-Alejandre Judith Berastegui-Cabrera Pedro Camacho-martínez Carmen Infante-Domínguez marta Carretero-Ledesma Juan Carlos Crespo-Rivas Eduardo Márquez joséManuel Lomas Claudio Bueno Rosario Amaya joséAntonio Lepe Jerónimo Pachón Elisa Cordero Javier Sánchez-Céspedes Manuela Aguilar-Guisado Almudena Aguilera Clara Aguilera Teresa Aldabo-Pallas Verónica Alfaro-Lara Cristina Amodeo Javier Ampuero María Dolores Avilés Maribel Asensio Bosco Barón-Franco Lydia Barrera-Pulido Rafael Bellido-Alba Máximo Bernabeu-Wittel Candela Caballero-Eraso Macarena Cabrera Enrique Calderón Jesús Carbajal-guerrero Manuela Cid-Cumplido Yael Corcia-Palomo Juan Delgado Antonio Domínguez-Petit Alejandro Deniz Reginal Dusseck-Brutus Ana Escoresca-Ortega Fátima Espinosa Nuria Espinosa Michelle Espinoza Carmen Ferrándiz-Millón marta Ferrer Teresa Ferrer Ignacio Gallego-Texeira Rosa Gámez-Mancera Emilio García Horacio García-Delgado Manuel García-Gutiérrez María Luisa Gascón-Castillo Aurora González-Estrada Demetrio González Carmen Gómez-González Rocío González-León Carmen Grande-Cabrerizo Sonia Gutiérrez Carlos Hernández-Quiles Inmaculada Concepción Herrera-Melero marta Herrero-Romero Luis Jara Carlos Jiménez-Juan Silvia Jiménez-Jorge Mercedes Jiménez-Sánchez Julia Lanseros-Tenllado Carmina López Isabel López Álvaro López-Barrios Luis F.López-Cortés Rafael Luque-Márquez Daniel Macías-García Guillermo martín-Gutiérrez Luis martín-Villén joséMolina Aurora Morillo María Dolores Navarro-Amuedo Dolores Nieto-martín Francisco Ortega María Paniagua-García Amelia Peña-Rodríguez E Clinical Unit of Infectious Diseases Microbiology and Preventive MedicineInstitute of Biomedicine of Seville(IBiS)Virgen del Rocío University HospitalCSICUniversity of SevilleSevilleSpain Department of Medical Biochemistry Molecular Biologyand ImmunologySchool of MedicineUniversity of SevilleSevilleSpain Pneumology Service Galicia Sur Health Research Instituto(IIS Galicia Sur)SERGAS-UVigoVigoSpain Infectious Diseases Unit Department of Internal MedicineComplexo HospitalarioUniversitario de VigoIIS Galicia SurSERGAS-UVigoVigoSpain Group of Virology and Pathogenesis Galicia Sur Health Research Institute(IIS Galicia Sur)-Complexo Hospitalario Universitario de VigoSERGAS-UVigoVigoSpain Unit of Infectious Diseases Microbiologyand Preventive MedicineVirgen del Rocío University HospitalSevilleSpain Institute of Biomedicine of Seville(IBiS) Virgen del Rocío University Hospital/CSIC/University of SevilleSevilleSpain Medico-Surgical Unit of Respiratory Diseases Virgen del Rocío University HospitalSevilleSpain Unit of Emergencies Virgen del Rocío University HospitalSevilleSpain Intensive Care Unit Virgen del Rocío University HospitalSevilleSpain Department of Medicine University of SevilleSevilleSpain Cardiology and Cardiovascular Surgery Unit Virgen del Rocío University HospitalSevilleSpain Rheumatology Unit Virgen del Rocío University HospitalSevilleSpain Internal Medicine Unit Virgen del Rocío University HospitalSevilleSpain Digestive and Hepatobiliary Unit Virgen del Rocío University HospitalSevilleSpain Neurology and Clinical Neurophysiology Unit Virgen del Rocío University HospitalSevilleSpain Endocrinology and Nutrition Unit Virgen del Rocío University HospitalSevilleSpain Urology and Nephrology Unit Virgen del Rocío University HospitalSevilleSpain Unit of Clinical Investigation and Clinical Trials Virgen del Rocío University HospitalSevilleSpain

Severe Acute Respiratory Syndrome Coronavirus(SARS-CoV)-2 infection induces an exacerbated inflammation driven by innate immunity *** cells(DCs)play a key role in the defense against viral infections,for instance plasmacytoid DCs(pDCs),have the capacity to produce vast amounts of interferon-alpha(IFN-α).In COVID-19 there is a deficit in DC numbers and IFN-αproduction,which has been associated with disease *** this work,we described that in addition to the DC deficiency,several DC activation and homing markers were altered in acute COVID-19 patients,which were associated with multiple inflammatory ***,previously hospitalized and nonhospitalized patients remained with decreased numbers of CD1c+myeloid DCs and pDCs seven months after SARS-CoV-2 ***,the expression of DC markers such as CD86 and CD4 were only restored in previously nonhospitalized patients,while no restoration of integrinβ7 and indoleamine 2,3-dyoxigenase(IDO)levels were *** findings contribute to a better understanding of the immunological sequelae of COVID-19.

关键词： SARS-CoV-2 COVID-19 Dendritic cell Long-COVID

Formation of MEVEZUG Pure Ovino Reproducers in Tierra Caliente guerrero,Mexico

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Science and Engineering(A) 2020年第6期9卷 246-254页

作者： Esteban Julián Mireles martínez Adiel Catalán Robles Areli Hernández Rodríguez joséAlonso Galeana Isidro Gutiérrez Segura MaTrinidad Valencia Almazan Rosendo Cuicas Huerta Facultad de Medicina Veterinaria y Zootecnia Universidad Autónoma de GuerreroCd.Altamirano 40660México Instituto de Ciencia Animal(ICA) San Joséde las Lajas 32700 MayabequeCuba

The objective of the present work was to obtain pure ovine *** 2010 work began with the sheep herd of the Faculty of Veterinary Medicine and Animal Science of the Universidad Autónoma de guerrero,located in the municipality of Pungarabato,guerrero State,Mé*** faculty is 250 meters above sea *** climate of the region is warm subhumid,with average temperature between 24 and 30°C,but in the heat season maximum temperatures up to 46°down in the *** rainfall regimen is 800-1,200 mm of rainfall per *** production of sheep in Mexico is characterized mainly by creole animals and crosses are made with pure breeds imported from several European countries and ***,there is a need to form local breeds adapted to the climatic conditions and production systems of *** sheep herd initially had 100 animal of hair,with 70 sheep with their lambs and a *** animals had phenotype Pelibuey,Black Belly,Doper and *** of May 2010,consanguineous crosses were *** this period the parameters were registered:date and type of birth,weight and sex of the *** on BW(Birth Weight)of males and females were analyzed by ANOVA(Analysis of Variance)and multiple comparison test was used for the comparison of means(Duncan,1955),with a significance level of P<*** first reproducer was brown tobacco and had antlers,and the females had different *** to the present time,there are twenty studs with their respective descendants,and year 2019 the herd has 100 animals light brown and tobacco with their lambs(30),and a *** sheep are of medium size with 45 and 60 kg of average weight in females and male,*** of a total of 326 females and 335 males born,with an average weight of 2.62 kg at birth and a proliferative index of 1.41,20 MEVEZUG males were selected to be used as reproducers in 20 herds distributed in different sheep production units of the state of *** the crosses

关键词： MEVEZUG pure ovine reproducers