Results 11 to 20 of about 634 (204)

Dataset on technological alliances by using joint patents in the biotechnology industry

Data in Brief, 2020
The data in this article includes biotechnological joint patents as a proxy of technological alliances. Joint patents are not directly found in public or commercial databases.
Hugo E. Martínez Ardila, Luis C. Gómez Flórez, Juan F. Guarín Castro   +2 more
doaj   +1 more source

Predictibilidad de los retornos en el mercado de Colombia e hipótesis de mercado adaptativo

Estudios Gerenciales, 2015
Los mercados eficientes son aquellos en los cuales no es posible predecir los retornos de sus activos. No obstante, la hipótesis de mercado adaptativo afirma que la eficiencia no es una característica estática de los mercados, sino que varía en el tiempo
Katherine Julieth Sierra Suárez, Juan Benjamín Duarte Duarte, Victor Alfonso Rueda Ortíz   +2 more
doaj   +1 more source

Estrategia de inversión optimizando la relación rentabilidad-riesgo: evidencia en el mercado accionario colombiano

Estudios Gerenciales, 2015
Este trabajo evalúa y contrasta la rentabilidad observada del portafolio de mercado respecto a la que se obtendría mediante un modelo de optimización que maximiza el ratio de Sharpe, usando retornos diarios del mercado bursátil colombiano. A partir de lo
Orlando E. Contreras, Roberto Stein Bronfman, Carlos E. Vecino Arenas   +2 more
doaj   +1 more source

Taxonomic identification and diversity of effective soil microorganisms: towards a better understanding of this microbiome

Agronomía Colombiana, 2022
Soil microorganisms found in agricultural residues and the so-called efficient microorganisms (EM) are attractive for their potential applications and benefits in the bioremediation of complex ecosystems. However, the knowledge about Who is doing what?,
Annerys Carabeo, Janet Jiménez, Zuleiqui Gil, Deborah Henderson, Paul Adams, Alexander Calero-Hurtado   +5 more
doaj   +1 more source

From Flow to Function: Using Different Static Mixers to Fabricate Microarchitected Materials Via Chaotic Printing

Advanced Science, EarlyView.
Complex microarchitectures emerge from simple flow‐driven transformations as static mixers iteratively reorient and split material domains. Coupled with diverse deposition strategies, chaotic printing provides an accessible platform for fabricating architected materials that support biologically and chemically relevant processes. ABSTRACT Nature builds
Edna Johana Bolívar‐Monsalve, Carlos Fernando Ceballos‐González, Diego Alonso Quevedo‐Moreno, Irving Isaí Rendón‐Moreno, Ariel Cantoral‐Sánchez, Héctor Ambriz‐González, Mario Moisés Alvarez, Grissel Trujillo‐de Santiago   +7 more
wiley   +1 more source

Valoración de la calidad del servicio turístico de Cartagena de Indias, Colombia

Panorama Económico, 2019
Cartagena de Indias (Colombia) se ha mantenido como la tercera ciudad del país donde convergen la mayor proporción de turistas nacionales, presentando, además, un creciente aumento en las llegadas de turistas internacionales. Para continuar con esta ruta
Juan Carlos Vergara Schmalbach, María Carolina Cortez Cantero, María Fernanda Martínez Correa   +2 more
doaj   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

Biological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón, José A. Sánchez‐Zapata, Travis L. DeVault, Wayne M. Getz, Zebensui Morales‐Reyes, Daniel Redondo‐Gómez, Lara Naves‐Alegre, Solange A. Batista‐Nunes, Esther Sebastián‐González, Juan M. Pérez‐García, Kelly A. Waters, Thijs van Overveld, Craig Smith, Nuria Selva, Thomas A. Schlacher, Graeme Ruxton, Jesús Rodríguez, Martina‐M. Quaggiotto, Paula L. Perrig, Norman Owen‐Smith, Thomas M. Newsome, Isabel Navas, Yoshihiro Nakashima, Ana Mateos, Carlos Martínez‐Carrasco, Daniel Martín‐Vega, Berta Martín‐López, Antoni Margalida, Sergio A. Lambertucci, Adam Kane, Kevin Healy, Akane Hashizume, Antonio J. García‐Fernández, José A. Donázar, M. Eric Benbow, James C. Beasley, Philip S. Barton, Kathleen A. Alexander, Eneko Arrondo   +38 more
wiley   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal, Martha Eugenia Albores Velasco, René O. Vargas, Rubén Mil‐Martínez   +3 more
wiley   +1 more source

Aglomeración, encadenamientos industriales y cambios en la localización manufacturera en México

Economía, Sociedad y Territorio, 2007
En el periodo de 1980 a 2003 la industria manufacturera en México experimentó un proceso de dispersión que resultó en una mayor concentración industrial en el país, siendo los estados de la Frontera Norte y los estados alrededor de la Ciudad de México y ...
JORGE EDUARDO MENDOZA-COTA, JORGE ALBERTO PÉREZ-CRUZ   +1 more
doaj   +3 more sources

One century of teaching, research, and innovation in chemical engineering in Mexico: The role of chemical engineering in the background and future of polymer science and industrial production in Mexico

The Canadian Journal of Chemical Engineering, EarlyView.
Timeline of key academic milestones and individuals that shaped chemical engineering at FQ‐UNAM and in Mexico. Abstract One hundred years after the beginning of the teaching of Chemical Engineering in Mexico, which started in 1925 in the former National School of Chemical Sciences, currently Faculty of Chemistry (FQ) at National Autonomous University ...
Patricia Pérez‐Salinas, Alberto Rosas‐Aburto, Eduardo Vivaldo‐Lima   +2 more
wiley   +1 more source