Search Results - "David Contreras"

Principles of early human development and germ cell program from conserved model systems by Kobayashi, Toshihiro, Zhang, Haixin, Tang, Walfred W. C., Irie, Naoko, Withey, Sarah, Klisch, Doris, Sybirna, Anastasiya, Dietmann, Sabine, Contreras, David A., Webb, Robert, Allegrucci, Cinzia, Alberio, Ramiro, Surani, M. Azim

“…The authors trace the emergence of porcine primordial germ cells and develop in vitro models of primordial germ cell development from human and monkey…”
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The Reactivity and Reaction Pathway of Fenton Reactions Driven by Substituted 1,2-Dihydroxybenzenes by Salgado, Pablo, Melin, Victoria, Durán, Yasna, Mansilla, Héctor, Contreras, David

“…Fenton systems are interesting alternatives to advanced oxidation processes (AOPs) applied in soil or water remediation. 1,2-Dihydroxybenzenes (1,2-DHBs) are…”
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Optimal Machine Learning and Signal Processing Synergies for Low-Resource GNSS Interference Classification by van der Merwe, Johannes Rossouw, Franco, David Contreras, Feigl, Tobias, Rugamer, Alexander

“…Interference signals degrade the performance of a global navigation satellite system receiver. Classification of these interference signals allows better…”
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Selective oxidation of cyclohexane to cyclohexanol by BiOI under visible light: Role of the ratio (1 1 0)/(0 0 1) facet by Contreras, David, Melin, Victoria, Márquez, Katherine, Pérez-González, Gabriel, Mansilla, Héctor D., Pecchi, Gina, Henríquez, Adolfo

“…[Display omitted] •BiOI photocatalysts were synthesized at different pH values and characterized.•Cyclohexane oxofunctionalization was performed under visible…”
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Prospects for increasing the utilization of cattle embryo transfer by small‐scale milk and meat producers in tropical regions by Contreras, David A., Galina, Carlos S., Chenoweth, Peter

“…Contents Small community cattle farmers in the tropics are facing challenges to deliver quality products whilst under pressure to increase milk and beef yields…”
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Polysiloxanes as polymer matrices in biomedical engineering: their interesting properties as the reason for the use in medical sciences by González Calderón, José Amir, Contreras López, David, Pérez, Elías, Vallejo Montesinos, Javier

“…Polysiloxanes have been found to be the most important and commercial family of synthetic inorganic polymers. The unique structure of the siloxane bond…”
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Selective oxofunctionalization of cyclohexane over titanium dioxide–based and bismuth oxyhalide (BiOX, X=Cl−, Br−, I−) photocatalysts by visible light irradiation by Henríquez, Adolfo, Mansilla, Héctor D., Martínez-de la Cruz, Azael Martínez, Freer, Juanita, Contreras, David

“…[Display omitted] •TiO2 and BiOX photocatalysts were synthesized and characterized.•Cyclohexane oxofunctionalization was performed under visible light.•Bismuth…”
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Overview of toxic cyanobacteria and cyanotoxins in Ibero-American freshwaters: Challenges for risk management and opportunities for removal by advanced technologies by Munoz, Macarena, Cirés, Samuel, de Pedro, Zahara M., Colina, José Ángel, Velásquez-Figueroa, Yineth, Carmona-Jiménez, Javier, Caro-Borrero, Angela, Salazar, Anthony, Santa María Fuster, Mónica-Cecilia, Contreras, David, Perona, Elvira, Quesada, Antonio, Casas, Jose A.

“…The increasing occurrence of cyanobacterial blooms worldwide represents an important threat for both the environment and public health. In this context, the…”
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Reward Rate Optimization in Two-Alternative Decision Making: Empirical Tests of Theoretical Predictions by Simen, Patrick, Contreras, David, Buck, Cara, Hu, Peter, Holmes, Philip, Cohen, Jonathan D

“…The drift-diffusion model (DDM) implements an optimal decision procedure for stationary, 2-alternative forced-choice tasks. The height of a decision threshold…”
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Kinetic Investigations of Quaternization Reactions of Poly[2‐(dimethylamino)ethyl methacrylate] with Diverse Alkyl Halides by De Jesús‐Téllez, Marco A., Sánchez‐Cerrillo, Dulce M., Quintana‐Owen, Patricia, Schubert, Ulrich S., Contreras‐López, David, Guerrero‐Sánchez, Carlos

“…Kinetic investigations of the quaternization reactions of poly[2‐(dimethylamino)ethyl methacrylate] (PDMAEMA) with alkyl halides (1‐iodobutane, 1‐iodoheptane,…”
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Discovering innovation opportunities based on SECI model: reconfiguring knowledge dynamics of the agricultural artisan production of agave-mezcal, using emerging technologies by Flores Torres, Columba Lisset, Olvera-Vargas, Luis Alberto, Sánchez Gómez, Julia, Contreras-Medina, David Israel

“…Purpose Following the recommendation of the food and agriculture organization of the United Nations in agricultural innovation, for taking advantage of…”
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Influence of RE (Pr3+, Er3+, Nd3+) doping on structural, vibrational and enhanced persistent photocatalytic properties of ZnO nanostructures by Pandiyarajan, T., Mangalaraja, R.V., Karthikeyan, B., Udayabhaskar, R., Contreras, David, Sepulveda-Guzman, Selene, Gracia-Pinilla, M.A.

“…[Display omitted] •RE (Pr, Er and Nd) doped ZnO was efficiently synthesized via wet chemical route.•Morphological transition from spherical to flower like…”
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Sediment provenance signal of the discontinuous retroarc topography in the northern Andes during the Early Cretaceous by León, Santiago, Jiménez‐Rodríguez, Sebastián, Piraquive, Alejandro, Florez‐Amaya, Sandra, Muñoz‐Rocha, Jimmy, Peña‐Urueña, Mary Luz, Bonilla, Amed, Lince, Ingrid Facio, Contreras‐Fayad, David, Jiménez, Carolina

“…Abstract A large dataset of detrital zircon U–Pb ages ( N  = 5940) of Aptian‐Albian strata of the Colombian‐Ecuadorian retroarc region suggests that these…”
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A Typology of Martial Arts Scholar–Practitioners: Types, Transitions, and Tensions in Capoeira by Islas, David S. Contreras, Jennings, George

“…Martial arts are concerned with continuous technical practice and refinement over a lifetime, while scholarship is ordinarily undertaken by active learners and…”
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Catalytic Selective Oxidation of β-O-4 Bond in Phenethoxybenzene as a Lignin Model Using (TBA)5[PMo10V2O40] Nanocatalyst: Optimization of Operational Conditions by Díaz, Juan, Pizzio, Luis R., Pecchi, Gina, Campos, Cristian H., Azócar, Laura, Briones, Rodrigo, Romero, Romina, Troncoso, Eduardo, Méndez-Rivas, Camila, Melín, Victoria, Murillo-Sierra, Juan C., Contreras, David

“…The catalytic oxidation of phenethoxybenzene as a lignin model compound with a β-O-4 bond was conducted using the Keggin-type polyoxometalate nanocatalyst…”
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Iron Overload Is Associated With Oxidative Stress and Nutritional Immunity During Viral Infection in Fish by Tarifeño-Saldivia, Estefanía, Aguilar, Andrea, Contreras, David, Mercado, Luis, Morales-Lange, Byron, Márquez, Katherine, Henríquez, Adolfo, Riquelme-Vidal, Camila, Boltana, Sebastian

“…Iron is a trace element, essential to support life due to its inherent ability to exchange electrons with a variety of molecules. The use of iron as a cofactor…”
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Surface modification of titanium dioxide by Pawar, Tushar Janardan, Contreras López, David, Olivares Romero, José Luis, Vallejo Montesinos, Javier

“…Titanium dioxide (TiO 2 ) is one of the most widely used metal dioxides for applications such as semiconductors, photocatalysts, pigments, pharmaceutical…”
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Combined use of novel chitosan-grafted N-hydroxyethyl acrylamide polyurethane and human dermal fibroblasts as a construct for in vitro-engineered skin by González-Torres, Maykel, Elizalde-Cárdenas, Alejandro, Leyva-Gómez, Gerardo, González-Mendoza, Oswaldo, Lima, Enrique, Núñez-Tapia, Israel, Abad-Contreras, David Eduardo, Luisa Del Prado-Audelo, María, Pichardo-Bahena, Raúl, Carlos-Martínez, Alberto, Ribas-Aparicio, Rosa María

“…A rich plethora of information about grafted chitosan (CS) for medical use has been reported. The capability of CS-grafted poly(N-hydroxyethyl acrylamide)…”
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Improvement in the physicochemical properties of titanium dioxide by surface modification with 1H-1-carboxylate of isopropyl-imidazole and 3-aminopropyltrimethoxysilane: case study—as a filler in polylactic acid composites by González Calderón, José Amir, Austria Gutiérrez, Adrián, Sanchez, Gregorio, Peña Juárez, Mariana Gisela, Contreras López, David, Pérez, Elías, Vallejo Montesinos, Javier

“…This work presents the surface functionalization of titanium dioxide nanoparticles with 1H-1-carboxylate of isopropyl-imidazole and…”
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Elemental geochemistry of the Upper Cretaceous reservoir and surrounding formations applied in geosteering of horizontal wells, Lebăda Field – Western Black Sea by Prundeanu, Ionuţ Mihai, Chelariu, Ciprian, Contreras Perez, David Rafael

“…The precise landing and steering of horizontal wells using conventional mudlogging and Logging While Drilling (LWD) data is a particular challenge for the…”
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