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Mostrando ítems 761-780 de 1604
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Prolegómenos a la filosofía: lecciones para acúsmaticos
(BarranquillaSede Norte, 2020-08-04)textos y tuve en mi escritorio la Biblia, Platón, Agustín, Kant, Feuerbach, Marx, Engels, Nietzsche, Kaustky, Hainchelin, Sartre, Reich y otros. Sin embargo, luego de consultarlos a saltos y zancadas, como diría Montaigne, ...
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Acrylic Bone Cements Modified with Graphene Oxide: Mechanical, Physical, and Antibacterial Properties
(BarranquillaSede Norte, 2020-08-07)Bacterial infections are a common complication after total joint replacements (TJRs), the treatment of which is usually based on the application of antibiotic-loaded cements; however, owing to the increase in ...
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Effect of the Gallium and Vanadium on the Dibenzothiophene Hydrodesulfurization and Naphthalene Hydrogenation Activities Using Sulfided NiMo-V2O5/Al2O3-Ga2O3
(BarranquillaQuímicaSede Norte, 2020-08-07)The effect of Ga and V as support-modifier and promoter of NiMoV/Al2O3-Ga2O3 catalyst on hydrogenation (HYD) and hydrodesulfurization (HDS) activities was studied. The catalysts were characterized by elemental analysis, ...
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FT-NIR spectroscopy and RP-HPLC combined with multivariate analysis reveals differences in plant cell suspension cultures of Thevetia peruviana treated with salicylic acid and methyl jasmonate
(BarranquillaSede Norte, 2020-08-10)Plant cell suspension culture of T. peruviana is a feasible biotechnological platform for the production of secondary metabolites with anti-proliferative/cytotoxic activity, as phenolic compounds (PC); however, different ...
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Effect of the Geometric Profile of Top Ring on the Tribological Characteristics of a Low-Displacement Diesel Engine
(BarranquillaIngeniería MecánicaSede Norte, 2020-08-11)The present study aims to analyze the influence of the geometric profile of the compression ring on the tribological properties of the lubricant. Additionally, the influence of the rotation speed and the engine load on ...
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Exergetic analysis of a dual-fuel engine, PEM electrolyzer and thermoelectric generator integrated system
(BarranquillaIngeniería MecánicaSede Norte, 2020-08-12)In this research, the implementation of an integrated system composed of a dual-fuel engine (Diesel-Hydrogen), a PEM electrolyzer and a thermoelectric generator is envisioned. In order to know the optimal operating ...
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Unveiling the age and origin of biogenic aggregates produced by earthworm species with their NIRS fingerprint in a subalpine meadow of Central Pyrenees
(BarranquillaSede Norte, 2020-08-12)In this study the near-infrared reflectance (NIR) spectra signals (750–2,500 nm) of soil samples was compared with the NIR signals of the biogenic aggregates produced in the lab by three earthworm species, i.e., Aporrectodea ...
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Reduction of Postharvest Quality Loss and Microbiological Decay of Tomato “Chonto” (Solanum lycopersicum L.) Using Chitosan-E Essential Oil-Based Edible Coatings under Low-Temperature Storage
(BarranquillaIngeniería AgroindustrialSede Norte, 2020-08-13)The tomato (Solanum lycopersicum L.) is one of the many essential vegetables around the world due to its nutritive content and attractive flavor. However, its short shelf-life and postharvest losses affect its marketing. ...
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Factores de gestión del conocimiento en entidad pública del sector de tránsito y transporte
(BarranquillaSede Norte, 2020-08-23)Desde una visión sistémica, la gestión del conocimiento afecta al proceso de toma de decisiones en las organizaciones que, en un entorno globalizado, deben plantear estrategias que posibiliten el incremento de la ...
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Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy
(BarranquillaSede Norte, 2020-08-24)Cu-Be alloys are considered high strength alloys when containing 0.2% to 2% of Be per weight, 0.2% to 2.7% of Co per weight, and up to 2.2% of Ni per weight, since they can present an elastic limit higher than 1380 MPa ...
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Legitimación de la violencia en parejas heterosexuales desde el género como una de las estructuras de práctica social
(BarranquillaSede Norte, 2020-08-25)Este artículo tuvo como objetivo develar las representaciones sociales de mujeres víctimas, agresores y prestatarios/as de servicios legitimadoras de violencia de pareja desde la estructura de género y práctica social ...
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Evaluation of Photovoltaic Energy Projects using the Real Options Valuation
(BarranquillaSede Norte, 2020-08-30)The purpose of the article is to analyze from a current perspective how Real Options Valuation facilitate the evaluation of projects for the adoption of photovoltaic energy in countries such as Colombia. A mixed descriptive ...
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New records of eight species of ground beetles (Coleoptera, Carabidae) from Colombia
(BarranquillaBiologíaSede Norte, 2020-09-01)We report new records of eight species of ground beetles (Coleoptera, Carabidae) from Colombia originated from recent field trips and from museum specimens: Amblygnathus suturalis Putzeys, 1845 (Atlántico), Bembidion ...
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Innovación en las micro, pequeñas y medianas empresas familiares del sector manufacturero del Atlántico-Colombia*
(BarranquillaSede Norte, 2020-09-01)Las micro, pequeñas y medianas empresas manufactureras se enfrentan cada día a un panorama altamente competitivo en el cual la innovación constituye un factor esencial hacia la consolidación de sus planes en el mercado, ...
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Financial Evaluation of Photovoltaic Energy Projects in Colombia
(BarranquillaSede Norte, 2020-09-01)The use of renewable sources, especially photovoltaics, has become a viable alternative as a supply of this vital element without destroying the environmental environment. In this sense, the main objective of the study ...
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La formación de licenciados para una educación de calidad
(BarranquillaSede Norte, 2020-09-10)El Sistema de Educación Superior en Colombia se encuentra regulado por la Ley 30/92. Sin embargo, en el país la historia de la formación de licenciados se relaciona con los proyectos políticos y educativos que buscan ...
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Visiones de mundo del poemario Rostro en la soledad de Héctor Rojas Herazo
(BarranquillaSede Norte, 2020-09-13)La civilización occidental, cuyos pilares son la cultura griega con sus mitos y su filosofía, en la expansión del mundo cristiano, ha influido siempre, como eje de referencia o reminiscencia en las artes. En el poemario ...
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Cristología: doctrina de la persona y obra de Cristo
(BarranquillaSede Norte, 2020-09-17)La cristología es la doctrina que estudia la persona y obra de Cristo. Se ocupa de temas como su deidad, atributos, estados y oficios, además de la obra de redención, propiciación, reconciliación y salvación que llevó a ...
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Factors Shaping efl Preservice Teachers’ Identity Configuration
(BarranquillaSede Norte, 2020-09-17)Preservice efl teachers face many challenges when developing their practicum. Such an experience shapes their identity and influences the teaching and learning processes. This descriptive case study is about preservice ...
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Osseointegration of Antimicrobial Acrylic Bone Cements Modified with Graphene Oxide and Chitosan
(BarranquillaSede Norte, 2020-09-18)Acrylic bone cement (ABC) is one of the most used materials in orthopedic surgery, mainly for the fixation of orthopedic implants to the bone. However, ABCs usually present lack of biological activity and osseointegration ...