Artículos científicos: Envíos recientes
Mostrando ítems 101-120 de 288
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Cross-entangling electronic and nuclear spins of distant nitrogen-vacancy centers in noisy environments by means of quantum microwave radiation
(American Physical Society, 2018)Nitrogen-vacancy (NV) defect centers in diamond are strong candidates to generate entangled states in solid-state environments even at room temperature. Quantum correlations in spatially separated NV systems, for distances ... -
Study of professional and working profiles of the systems engineer in Colombia
(IEEE Computer Society, 2016)This article details the opportunities for training of the system engineer, according to Colombian requirements demands. This work was done through the characterization of employment [1] and professional profiles [2], this ... -
Energetic and economic analysis of ethanol, xylitol and lignin production using oil palm empty fruit bunches from a Brazilian factory
(Elsevier Ltd, 2018)The oil palm empty fruit bunches (OPEFB) are the largest solid residues generated in the oil palm processing. At present, OPEFB is considered one of the most important lignocellulosic materials for producing chemicals and ... -
Techno-economic analysis of downstream processes in itaconic acid production from fermentation broth
(Elsevier Ltd, 2019)Itaconic acid is a biomolecule with potential application in various products, substituting feedstocks within the petrochemical industry. Simulations of different downstream trains were done to compare the method currently ... -
Production and welfare of trout in a recirculation system versus conventional aeration
(Fundacion CIPAV, 2016)To evaluate two hydraulic detention times in a recirculation aquaculture system (RAS) versus the conventional aeration and their effect on productive variables (weight gain, final stocking density, and specific growth rate) ... -
A comparative between CRISP-DM and SEMMA through the construction of a MODIS repository for studies of land use and cover change
(ASTES Publishers, 2017)Among the most popular methodologies for development of data mining projects are CRISP-DM and SEMMA, This research paper explains the reason why it was decided to compare them from a specific case study. Therefore, this ... -
Elderly functionality and its associated factors in a rural context of Colombia: a structural equations model
(Emerald Publishing, 2024)Purpose: The purpose of this study was to determine the factors associated with functionality, a clinical criterion that could predict frailty in the elderly people in a rural context. Design/methodology/approach: This ... -
Soil morphological properties related to Páramo ecosystems in Nariño, Southern Colombia
(Mexican Society of Soil Science, 2018)Franklin Delano Roosevelt (1882-1945) stated: “A nation that destroys its soils destroys itself.” How can we get the soil closer to society so that this sentence does not become reality? One alternative is to develop ... -
Evaluation of the effectiveness of a training program for knowledge in hypertensive patients
(Editorial Ciencias Medicas, 2018)Objective: To evaluate the effectiveness of a training program of knowledge for hypertensive patients. Method: This was a quasi-experimental and interventional study of before and after without control group, in which was ... -
Constraint percolation on hyperbolic lattices
(American Physical Society, 2017)Hyperbolic lattices interpolate between finite-dimensional lattices and Bethe lattices, and they are interesting in their own right, with ordinary percolation exhibiting not one but two phase transitions. We study four ... -
Random walks with long-range steps generated by functions of Laplacian matrices
(Institute of Physics Publishing, 2018)In this paper, we explore different Markovian random walk strategies on networks with transition probabilities between nodes defined in terms of functions of the Laplacian matrix. We generalize random walk strategies with ... -
Perceptions about their own old age from the perspective of a group of epidemiologists in training
(Universidad Nacional de Colombia, 2017)Objective Exploring, from the perspective of a group of epidemiologists in training, the perceptions about their own old age. Material and Methods Exploratory, qualita tive-descriptive study, in which ethnographic tools ... -
Multi-labeler classification using kernel representations and mixture of classifiers
(Springer Verlag, 2017)This work introduces a multi-labeler kernel novel approach for data classification learning from multiple labelers. The learning process is done by training support-vector machine classifiers using the set of labelers (one ... -
Deforming objects via exponential homotopy: A first approach
(Institute of Electrical and Electronics Engineers Inc., 2015)This work presents a novel alternative to conventional linear homotopy with suboptimal settings for applications on object deformation. Proposed approach extends the linear mapping to exponential representations that ... -
Strengthening competencies for building software, through a community of practice
(Springer Verlag, 2017)The present work describes the use of a virtual community of practice for the strengthening of capacities for software development, the study was carried out with students of informatics and related areas of higher education ... -
Consumption of antibiotics measured from sales in drugstores in Santiago de Cali, Colombia
(Editorial Ciencias Medicas, 2016)Introduction : antibiotics are drugs used in inpatient and outpatient care: however, the latter type of patients is the one more likely to irrationally use these drugs. Objective : to determine the total consumption of a ... -
Global database on large magnitude explosive volcanic eruptions (LaMEVE)
(SpringerOpen, 2012)To facilitate the assessment of hazards and risk from volcanoes, we have created a comprehensive global database of Quaternary Large Magnitude Explosive Volcanic Eruptions (LaMEVE). This forms part of the larger Volcanic ... -
Probabilistic model of dengue
(Natural Sciences Publishing, 2018)The article presents the stochastic modeling of a particular dynamic of dengue cases for a constant population with an initial number of susceptible and infected members, a time-dependent force of infection and a ... -
Remember to Freud
(Group Psychology Campus Univalle - GEPU, 2014)This text is the result of a theoretical exercise, in order to account for the contributions of Sigmund Freud to understand the psyche. As such, and as Lacan had announced at the time, his writing and intentionality is the ... -
Potentiation of the Antimicrobial Effect of Oxytetracycline Combined with Cinnamon, Clove, Oregano, and Red Thyme Essential Oils against MDR Salmonella enterica Strains
(Multidisciplinary Digital Publishing Institute (MDPI), 2024)Tetracyclines have a high resistance percentage in Salmonella spp. of both human and animal origin. Essential oils, such as cinnamon (Cinnamomum zeylanicum), clove (Eugenia caryophyllata), oregano (Origanum vulgare), and ...
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