Resultados de búsqueda - (peso OR (presente OR (compcppcppcppcppcppcppdcppcpppeso OR compcppcppcppcppcppcppdcppcpppeso)))
Materias dentro de su búsqueda.
Materias dentro de su búsqueda.
- 57
- México 32
- Mexico 27
- Nuevo León 24
- Educación 23
- educación 21
- Innovación 19
- derechos humanos 19
- innovación 18
- redes sociales 18
- Competitividad 17
- human rights 17
- communication 16
- comunicación 16
- estudiantes 16
- COVID-19 15
- I23 15
- Covid-19 14
- I21 14
- M12 14
- Monterrey 14
- género 14
- Historia 13
- M54 13
- Calidad 12
- Educación Superior 12
- Emprendimiento 12
- Estudiantes 12
- democracia 12
- Latin America 11
-
7901
Nuclear magnetic resonance spectroscopy data of isolated compounds from Acacia farnesiana (L) Willd fruits and two esterified derivatives
Publicado 2019“…In the present article we describe the spectroscopic data of 1 H and 13C Nuclear Magnetic Resonance of 11 compounds including: Nine natural products from the hexanic-chloroformic and methanolic extracts of Acacia farnesiana fruit and two esterified derivatives (22E-stimasta5,22-dien- 3β-acetyl and methyl 3,4,5-triacetyloxybenzoate). …”
Enlace del recurso
Artículo -
7902
Análisis de polimorfismos genéticos en taekwondoínes de alto rendimiento relacionados al desempeño deportivo y su asociación a lesiones
“…Existen variaciones por las cuales un grupo de individuos puede desarrollar habilidades diferentes al resto de sus compañeros, el desempeño deportivo se basa en un proceso multifactorial en el que participa e influye el componente genético asociado a diversos factores, dentro de los cuales se encuentran las variantes alélicas predeterminados por los polimorfismos de un solo nucleótido (SNPs), son mutaciones en el material genético presentes en al menos 1% de la población, el cual puede ser una ventaja o desventaja según sus alelos y su respuesta al ambiente del ejercicio.…”
Enlace del recurso
Artículo -
7903
Dataset of the adapted COVID stress scales for healthcare professionals of the northeast region of Mexico
Publicado 2021“…The dataset presented examines the levels of stress persisting in healthcare professionals of the Northeast region of Mexico. …”
Enlace del recurso
Artículo -
7904
High-temperature oxidation of superalloy C-263 of rings for aircraft engines
Publicado 2018“…The present investigation was conducted to study the oxidation kinetics of nickel-based superalloy 263, used in the manufacture of rings for aircraft engines. …”
Enlace del recurso
Sección de libro. -
7905
Business success factors within business incubators, validation of the research tool (Factores de éxito empresarial dentro de las incubadoras de empresas, validación de la herramie...
Publicado 2021“…Therefore, the theoretical justification of these factors and the construction and validation of the instrument are presented. A questionnaire of 51 questions was made and to test its reliability it was applied to 30 study subjects. …”
Enlace del recurso
Artículo -
7906
Insights into the structure of MoS2/WS2 nanomaterial catalysts as revealed by aberration corrected STEM
Publicado 2012“…As part of the 2nd Joint Congress of the Portuguese and Spanish Microscopy Societies the present work reports about the different types of MoS2/WS2 nanomaterials which have been investigated by using aberration corrected STEM namely: (1) MoS2 nanotubes (2) MoS2 hexagonal nanoplates, (3) rippled or helical MoS2 nanowires, (4) Co-doped MoS2/WS2 nanowires and (5) fullerene-like WS2 nanoparticles…”
Enlace del recurso
Artículo -
7907
Sigmoid fixation associated with rectopexy using a laparoscopic approach could prevent relapse of rectal prolapse in pediatric patients with spinal dysraphia
Publicado 2008“…Patients with spinal dysraphia frequently have already been treated by sclerotherapy or other surgical techniques, but unsuccessfully. Methods: We present 2 patients, who underwent laparoscopic rectopexy, with spinal dysraphia and complete rectal prolapse relapse after conservative treatment. …”
Enlace del recurso
Artículo -
7908
Caracterización del yacimiento de hierro Sol y Luna, distrito minero de Concepción del Oro, Zacatecas
Publicado 2017“…Ca, Al and Mn for iron deposits yield a skarn type. The garnets present compositions of the andradite-grossular series, typical for iron skarns. …”
Enlace del recurso
Tesis -
7909
Caracterización del yacimiento de hierro Sol y Luna, distrito minero de Concepción del Oro, Zacatecas
Publicado 2017“…Ca, Al and Mn for iron deposits yield a skarn type. The garnets present compositions of the andradite-grossular series, typical for iron skarns. …”
Enlace del recurso
Tesis -
7910
Avances Sobre la Ecología Microbiana del Tracto Digestivo de la Tilapia y Sus Potenciales Implicaciones
Publicado 2019“…De estos estudios se concluye que algunos de losmicroorganismos presentes en la flora intestinal de la tilapia tienen un amplio potencial para ser utilizados comoprobióticos en este organismo.…”
Enlace del recurso
Artículo -
7911
In vitro characterization of the antiviral activity of fucoidan from Cladosiphon okamuranus against Newcastle Disease Virus
Publicado 2012“…Fucoidan is a sulfated polysaccharide present in the cell wall matrix of brown algae that has been demonstrated to inhibit certain enveloped viruses with low toxicity. …”
Enlace del recurso
Artículo -
7912
Wear resistance of thermal spray WC-Co-VC nanostructured coatings
Publicado 2016“…Additionally, VC was added to the bimodal mixture and it presented the best characteristics. The combination of VC additions and a bimodal WC particle size distribution in the WC-Co coatings proved successful in increasing their mechanical properties, which permitted the coatings processed in this work to show better mechanical properties than those reported in the literature for coatings having exclusively a bimodal WC particles size distribution or those only doped with VC additions. …”
Enlace del recurso
Sección de libro. -
7913
Comparative study of Ni-W/CeO2, Ni-W/y-Al2O3 and Ni-W/HT catalysts for H2 production by steam reforming of bioethanol
Publicado 2011“…Nickel content was varied from 10, 15 and 30% with 1% W. The catalyst that presented the highest catalytic activity and selectivity to hydrogen was 10% Ni-W/HT. …”
Enlace del recurso
Artículo -
7914
Identificación de TNF-α E IL-4 mediante IHC en granulomas de conejos infectados naturalmente con encephalitozoon cuniculi.
Publicado 2016“…Este trabajo se enfocó en la detección de la presencia de las citocinas, TNF-α e IL-4, en los granulomas presentes en cerebro y riñón de conejos positivos, por medio de la técnica inmunohistoquímica y su comparación en animales inmunosuprimidos mediante Dexametasona. …”
Enlace del recurso
Tesis -
7915
Failure analysis of the fasten system of wheels used in mining pickup trucks
Publicado 2017“…The reasons that promote the development of this kind of failure are presented and discussed in this investigation. © 2017 The Authors. …”
Enlace del recurso
Artículo -
7916
Electrochemical Evaluation of a Stainless Steel as Reinforcement in Sustainable Concrete Exposed to Chlorides
Publicado 2016“…For this research three concrete mixtures were produced, the first concrete was made with 100 % cement CPC 30R, the second mixture was considered sustainable concrete because using 80 % of cement CPC 30R and 20 % of silica fume and the third mixture was elaborated with 80 % of cement CPC 30R and 20 % of fly ash, these mixtures were designed according to the method ACI 211.1, in the specimens were embedded bars of AISI 304 stainless steel and AISI 1018 steel, the specimens were exposed in a solution at 3.5 % of NaCl, simulating a marine environment, for to evaluate the corrosion resistance were used electrochemical techniques of Half-Cell Potential, standard ASTM C-876-09 and the Linear Polarization Resistance, standard ASTM G59, results Ecorr and Icorr after 180 days of exposure show that, the best performance was presented concrete specimens produced with 20 % silica fume and reinforced with AISI 304 stainless steel, with corrosion potential (Ecorr) indicating a 10 % probability of corrosion and Icorr values that indicate a passivity level of corrosion.…”
Enlace del recurso
Artículo -
7917
Angiosarcoma of the nasal cavity: a case report
Publicado 2009“…Since 1977, only 16 cases have been reported. We present a 33-year-old male with spontaneous epistaxis that was refractory to cauterization. …”
Enlace del recurso
Artículo -
7918
US Natural Gas Market Classification Using Pooled Regression
Publicado 2014“…Econometric studies about natural gas emerged as an important area of study since natural gas may now be sold and traded in a number of stock markets, each one responding to potentially different behavioral drives. In this work, we present a method to differentiate sets of time series based on a regression model relating price, consumption, supply, and other factors. …”
Enlace del recurso
Artículo -
7919
Developing a mixed reality assistance system based on projection mapping technology for manual operations at assembly workstations.
Publicado 2016“…In this scenario, virtual and augmented realities can offer significant advantages to support the human operator in manual operations. This research work presents the development of a mixed (virtual and augmented) reality assistance system that permits real-time support in manual operations. …”
Enlace del recurso
Tesis -
7920
Recent Advances in Synthesis and Properties of Hybrid Halide Perovskites for Photovoltaics
Publicado 2018“…Concerning the above facts, a simple low-cost model called ‘‘dispersed photovoltaic cells’’ is presented. Keywords Perovskites Solar cells Organic–inorganic perovskites Synthetic routes Fluorescence…”
Enlace del recurso
Artículo