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  1. 281
  2. 282

    Estimación de los niveles ambientales de formaldehido en clínicas de odontopediatría. por Villarreal González, Adela Andrea

    “…Conclusions The results showed there were formaldehyde concentrations in the air of the clinics, enough to generate irritations in eyes and skin, higher concentrations were also observed in the clinics where the ventilation was zero and they performed a poor management of it.…”
    Enlace del recurso
    Tesis
  3. 283

    Non-random distribution of biocrust in a natural arid environment in the northern mexican plateau por Gutiérrez, M., Pando Moreno, Marisela, Jurado, Enrique, González Rodríguez, Humberto, Marmolejo Monsiváis, José Guadalupe, Mendoza, D.

    Publicado 2018
    “…Mosses had lower cover in the open area where the highest solar radiation was recorded. Lichens and cyanobacteria distribution appeared to be related to soil moisture. …”
    Enlace del recurso
    Artículo
  4. 284

    In Vitro Study of Antiamoebic Activity of Methanol Extracts of Argemone mexicana on Trophozoites of Entamoeba histolytica HM1-IMSS por Elizondo Luévano, Joel Horacio, Castro Ríos, Rocío, Sánchez García, Eduardo, Hernández García, Magda Elizabeth, Vargas Villarreal, Javier, Rodríguez Luis, Osvelia Esmeralda, Chávez Montes, Abelardo

    Publicado 2018
    “…Amoebiasis, a parasitic infection caused by Entamoeba histolytica (E. histolytica), is considered endemic in Mexico, where Argemone mexicana (A. mexicana) has been used in traditional medicine to treat intestinal parasitic diseases. ,e objective of this work was to evaluate the potential biological activity of A. mexicana on E. histolytica. …”
    Enlace del recurso
    Artículo
  5. 285

    Cálculo de asentamientos diferenciales en la interfase suelo-roca, del edificio de ingeniería petrolera de la Facultad de Ciencias de la Tierra, Linares, Nuevo León por Ramírez Ligonio, Manuel Jesús

    Publicado 2017
    “…The analysis was developed by the Finite Element method using the software called ABAQUS®, where the Soil-Rock phases can be simulated with elastics and geometries properties, and the same time the applied forces can be modified in the way that is needed. …”
    Enlace del recurso
    Tesis
  6. 286

    Synthesis and physicochemical characterization of photo crosslinked hydrogels of alginate/gelatin and a-tocopherol nanocapsules for their potential use as biomaterials por Palacios Santos, José Ernesto

    Publicado 2019
    “…Also, 13 nanocapsule formulations were made and analyzed employing the nanoprecipitation technique, where it was observed that by modifying the concentrations of the solvents, smaller diameters of the nanocapsules were obtain and using different extraction methods, its encapsulation efficiency and antioxidant activity were improved…”
    Enlace del recurso
    Tesis
  7. 287

    Subjective experience and visual attention to a historic building: A real-world eye-tracking study por De la Fuente Suárez, Luis Alfonso

    Publicado 2020
    “…Results suggest that the participants observed the different architectural elements for a time that was neither influenced by the route used to explore the building nor the point where that route was initiated. The architectural elements identified as examples of high-quality architecture and perceived as aesthetically pleasing by the participants during the itinerary were observed for longer times…”
    Enlace del recurso
    Artículo
  8. 288

    Corrosion Behavior of Galvanized Steel Embedded in Concrete Exposed to Soil Type MH Contaminated With Chlorides por Baltazar Zamora, Miguel Ángel, Mendoza Rangel, José Manuel, Croche, René, Gaona Tiburcio, Citlalli, López, Luis, Olguín, Francisco, Almeraya Calderón, Facundo

    Publicado 2019
    “….% NaCl as aggressive agent by weight of soil, the exposure time was 260 days where, the results show that when the presence of NaCl in the soil was increased to 2 and 3% the levels of corrosion are from high to very high in all concretes, presenting a little better performance the concretes reinforced with galvanized steel and a small benefit could be identified or related to the properties of a denser and less impermeable matrix that presented the concrete mix made with cement CPC 30R RS.…”
    Enlace del recurso
    Artículo
  9. 289

    Omega fatty acids production in an isolated native Chlorella sp. from northeast Mexico with improved growth using urine as nutritive medium por Canino Gómez, Jessica Cossette, Limón Rodríguez, Benjamín, Rivas García, Pasiano, Escamilla Alvarado, Carlos, Morones Ramírez, José Rubén, Alcalá Rodríguez, Mónica María

    Publicado 2020
    “…An improvement was also observed in the production of fatty acids and proteins, where the cultivation of Chlorella sp. with the urine medium (MOB) showed an average production (%) of 17.22% saturated fatty acids (SUFA’s), 22.03% of monounsaturated fatty acids (MUFA’s) and 60.73% of polyunsaturated fatty acids (PUFA’s), demonstrated also in the high concentrations of mainly linoleic and linoleic fatty acids in the microalgae. …”
    Enlace del recurso
    Artículo
  10. 290
  11. 291

    Breeding biology of Eared Quetzals in the Sierra Madre Occidental, Mexico por González Rojas, José Ignacio, Cruz Nieto, Javier, Ruvalcaba Ortega, Irene, Cruz Nieto, Miguel A.

    Publicado 2008
    “…However, fewer potential predators, such as snakes and mammals, are present in the Sierra Madre than in tropical zones where most trogon species occur. In addition, antipredator behaviors, including nestlings with calls resembling a snake and nests with an unpleasant odor, may contribute to the high nesting success. …”
    Enlace del recurso
    Artículo
  12. 292

    Economic assessment of the environmental services of PNA Cerro Mohinora, Guadalupe y Calvo, Chihuahua por García García, Samuel A., Alanís Rodríguez, Eduardo, Aguirre Calderón, Óscar A., Yerena Yamallel, José I., CUÉLLAR-RODRÍGUEZ, Luis G., Alejandro Collantes Chávez, Alejandro, Rascón Solano, Joel

    Publicado 2023
    “…The objective was to determine the willingness to pay (WTP) by the visitors through the Contingent Valuation Method (CVM) in order to conserve the environmental services (SA) provided by the area and to know their perception of the current state of the Hill. 210 surveys were carried out to simulate a hypothetical market, where they asked what is the maximum amount they would be willing to pay to preserve and/or improve the SA of the PNA. …”
    Enlace del recurso
    Artículo
  13. 293

    Effects of wetting and drying cycles on the germination of nine species of the Chihuahuan Desert por Contreras Quiroz, Mariana del Rocío, Pando Moreno, Marisela, Flores, Joel, Jurado, Enrique

    Publicado 2016
    “…Plants from drylands have developed strategies to germinate even in places where available humidity is sporadic with large periods of drought. …”
    Enlace del recurso
    Artículo
  14. 294

    Cosmological perturbation theory in f(Q,T) gravity por Nájera, Antonio, Fajardo, Amanda

    Publicado 2022
    “…By considering an ansatz of f(Q, T) = f1(Q)+f2(T), which has been broadly studied in the literature and the coincident gauge where the connection vanishes, we got equations consistent with f(Q) gravity when fT = 0. …”
    Enlace del recurso
    Artículo
  15. 295

    Estimación de los niveles ambientales de formaldehido en clínicas de odontopediatría. por Villarreal González, Adela Andrea

    “…Conclusions The results showed there were formaldehyde concentrations in the air of the clinics, enough to generate irritations in eyes and skin, higher concentrations were also observed in the clinics where the ventilation was zero and they performed a poor management of it.…”
    Enlace del recurso
    Tesis
  16. 296

    Cálculo de asentamientos diferenciales en la interfase suelo-roca, del edificio de ingeniería petrolera de la Facultad de Ciencias de la Tierra, Linares, Nuevo León por Ramírez Ligonio, Manuel Jesús

    Publicado 2017
    “…The analysis was developed by the Finite Element method using the software called ABAQUS®, where the Soil-Rock phases can be simulated with elastics and geometries properties, and the same time the applied forces can be modified in the way that is needed. …”
    Enlace del recurso
    Tesis
  17. 297

    Synthesis and physicochemical characterization of photo crosslinked hydrogels of alginate/gelatin and a-tocopherol nanocapsules for their potential use as biomaterials por Palacios Santos, José Ernesto

    Publicado 2019
    “…Also, 13 nanocapsule formulations were made and analyzed employing the nanoprecipitation technique, where it was observed that by modifying the concentrations of the solvents, smaller diameters of the nanocapsules were obtain and using different extraction methods, its encapsulation efficiency and antioxidant activity were improved…”
    Enlace del recurso
    Tesis
  18. 298
  19. 299
  20. 300

    Efficient removal of lead(II) ions in water using functionalized poly(styrene) oligomers por Sánchez Anguiano , Maria G., Oliva de Dios, Mauricio L., Chan Navarro, Rodrigo, Elizondo Martínez, Perla, Rosa M., García López , María Concepción

    Publicado 2023
    “…Adsorption process of Pb(II) was optimized using the 2*' fractional factorial design with replicates at the central point supplemented with the central composite design where the percentage adsorption was chosen as the response variable. …”
    Enlace del recurso
    Artículo

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