Resultados de búsqueda - "collecting"

  1. 621
  2. 622

    Seroprevalencia al virus adipogénico Adenovirus-36 y su asociación con la obesidad y la concentración sérica de colesterol en adultos del noreste de México: estudio piloto por Romo Tello, Susana

    Publicado 2018
    “…Nutritional status was evaluated using anthropometric measures (weight, height, waist and hip circumferences), indexes associated with obesity were calculated and % body fat was measured by dual X-ray absorptiometry (Lunar iDxa). Blood samples were collected, the serum was stored at -80 ° C, until its use to determine the seropositivity of antibodies against Ad-36 by immunoenzymatic method (ELISA) and cholesterol serum was evaluated by cholesterol oxidaseperoxidase method. …”
    Enlace del recurso
    Tesis
  3. 623

    Efecto antioxidante y citoprotector de extractos de plantas con actividad antimicrobiana por Pérez Narváez, Oscar Alberto

    Publicado 2018
    “…In the present study, antimicrobial, antioxidant and cytoprotective properties were evaluated in plants collected in municipality of Santiago, Nuevo León, Mexico; obtaining the leaf, stem and root (if any) ethanol extracts of A. xalapensis, M. malacophylla and T. cubense against strains of nosocomial importance such as S. aureus, P. aeruginosa and S. maltophilia; the greatest antimicrobial activity against S. aureus were the A. xalapensis stem and leaf extracts, MBC of 2.6 ± 0.3 mg/mL and 2.9 ± 0.5 mg/mL respectively, and the highest antioxidant activity by the methods of DPPH (1,112.1 ± 70.6 µmol ET/g 1,206.6 ± 68.6 µmol ET/g respectively) and ABTS•+ (1,864.0 ± 135.6 µmol ET/g 1750.7 ± 110.1 µmol ET/g respectively). …”
    Enlace del recurso
    Tesis
  4. 624

    Sistemática y distribución geográfica de la familia Capitellidae Grube, 1862 (Annelida: Polychaeta) del noroeste de México por García Garza, María Elena

    Publicado 2008
    “…The main object of the study was to analyze the taxonomical status of the capitélidos of the northeast of Mexico, conducting a taxonomical review of describe species of the zone, examining type material and a diverse variety of none type material from different national and international collections, describing and re-describing with detail every specie, creating identification keys, and emphasizing the geographical distribution of each specie. …”
    Enlace del recurso
    Tesis
  5. 625
  6. 626
  7. 627

    Estimación de la densidad poblacional de oso negro (Ursus americanus) en el Parque Nacional Cumbres de Monterrey, a través del análisis de ADN. por Fimbres Macías, Juan Pablo

    Publicado 2017
    “…A total of 39 samples were collected and processed at the Wildlife Genetics International laboratory (Nelson, BC, Canada) for individual genotyping. …”
    Enlace del recurso
    Tesis
  8. 628
  9. 629

    Seroprevalencia al virus adipogénico Adenovirus-36 y su asociación con la obesidad y la concentración sérica de colesterol en adultos del noreste de México: estudio piloto por Romo Tello, Susana

    Publicado 2018
    “…Nutritional status was evaluated using anthropometric measures (weight, height, waist and hip circumferences), indexes associated with obesity were calculated and % body fat was measured by dual X-ray absorptiometry (Lunar iDxa). Blood samples were collected, the serum was stored at -80 ° C, until its use to determine the seropositivity of antibodies against Ad-36 by immunoenzymatic method (ELISA) and cholesterol serum was evaluated by cholesterol oxidaseperoxidase method. …”
    Enlace del recurso
    Tesis
  10. 630

    Efecto antioxidante y citoprotector de extractos de plantas con actividad antimicrobiana por Pérez Narváez, Oscar Alberto

    Publicado 2018
    “…In the present study, antimicrobial, antioxidant and cytoprotective properties were evaluated in plants collected in municipality of Santiago, Nuevo León, Mexico; obtaining the leaf, stem and root (if any) ethanol extracts of A. xalapensis, M. malacophylla and T. cubense against strains of nosocomial importance such as S. aureus, P. aeruginosa and S. maltophilia; the greatest antimicrobial activity against S. aureus were the A. xalapensis stem and leaf extracts, MBC of 2.6 ± 0.3 mg/mL and 2.9 ± 0.5 mg/mL respectively, and the highest antioxidant activity by the methods of DPPH (1,112.1 ± 70.6 µmol ET/g 1,206.6 ± 68.6 µmol ET/g respectively) and ABTS•+ (1,864.0 ± 135.6 µmol ET/g 1750.7 ± 110.1 µmol ET/g respectively). …”
    Enlace del recurso
    Tesis
  11. 631

    Sistemática y distribución geográfica de la familia Capitellidae Grube, 1862 (Annelida: Polychaeta) del noroeste de México por García Garza, María Elena

    Publicado 2008
    “…The main object of the study was to analyze the taxonomical status of the capitélidos of the northeast of Mexico, conducting a taxonomical review of describe species of the zone, examining type material and a diverse variety of none type material from different national and international collections, describing and re-describing with detail every specie, creating identification keys, and emphasizing the geographical distribution of each specie. …”
    Enlace del recurso
    Tesis
  12. 632
  13. 633

    INCREMENTO DEL RIESGO DE PADECER CARIES DENTAL POR CONSUMO DE HIDRATOS DE CARBONO CON ALTO POTENCIAL CARIOGÉNICO por Cázares Monrea, Lilibeth Celina, Ramos Peña, Esteban G., Tijerina González, Liliana Z.

    Publicado 2009
    “…To ascertain the risk of dental caries in students of secondary located in Guadalupe, Nuevo Leon, Mexico, according to cariogenic factors studied, was carried out a transversal epidemiological study, descriptive and analytical. Data collection was conducted through a food frequency questionnaire and oral inspection to each student. …”
    Enlace del recurso
    Artículo
  14. 634
  15. 635
  16. 636

    Estudio mineralógico y geoquímico de los procesos de interacción roca – suelo – vegetación en el transecto Linares – La Ascención, Nuevo León. por Platas Castillo, Eliazar

    Publicado 2016
    “…Additionally, the root of an oak specimen developed above the soil profile has been collected. Traditional soil tests (texture, color, pH, electrical conductivity, %organic matter, %gypsum and %carbonates) have been applied to all soil samples. …”
    Enlace del recurso
    Tesis
  17. 637
  18. 638

    Incremento en el control de la formación de placa empleando clorhexidina incorporada en nanopartículas poliméricas: estudio clínico y microbiológico. por González Hinojosa, Fátima del Rosario

    Publicado 2018
    “…Plaque re-growth was assessed with Plaque index (Turesky-GilmoreGlickman and O'Leary), Gingival index (Löe and Silness) at 0, 4 and 24 h, also supragingival plaque samples were collected from buccal surfaces of 16/26 at 4 and 24 h for microbiological study (CFU). …”
    Enlace del recurso
    Tesis
  19. 639

    Evaluación de la calidad del agua de tres ríos de la subcuenca del “Río Limón” en el estado de Nuevo León por Ríos Saucedo, Julio César

    Publicado 2005
    “…Results showed that bacteria (total and fecal) exceeded set standards (NOM-127-SSA1994) for all samples collected. However none chamical constituent exceeded set standards but concentrations of several constituents (pH, CE, Ca2+, Mg2+ Na1 + CO3 - HCO3 Cl- , SO42-) varied according to time, river and location. …”
    Enlace del recurso
    Tesis
  20. 640

    Spatio-temporal variations of macro and trace mineral contents in six native plants consumed by ruminants at northeastern Mexico = Variación en espacio y tiempo del contenido de m... por Ramírez Lozano, Roque Gonzalo, González Rodríguez, Humberto, Gómez Meza, Marco Vinicio, Cantú Silva, Israel, Uvalle Sauceda, José Isidro

    Publicado 2010
    “…During two consecutive years the Ca, K, Mg, Na, P, Cu, Fe, Mn and Zn contents were determined, seasonally, in foliar tissue of native trees (T) and shrubs (S) from northeastern Mexico such as Acacia rigidula (S), Bumelia celastrina (T), Croton cortesianus (S), Karwinskia humboldtiana (S), Leucophyllum frutescens (S) and Prosopis laevigata (T). Collections were carried out from August 2004 to May 2006 in a subtropical and semiarid region of the State of Nuevo Leon, Mexico at three county (Los Ramones, China and Linares) sites, which are grouped under a similar climatic pattern. …”
    Enlace del recurso
    Artículo

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