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Search Results: 1 - 10 of 240552 matches for " Rodríguez Cárdenas "
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Scale of Teaching Strategies for Collaborative Learning: Design, Validation and Evaluation of Its Psychometric Properties in High School Education  [PDF]
Magaly Cárdenas Rodríguez, Luz Marina Méndez Hinojosa, César Alejandro Ortiz Páez
Psychology (PSYCH) , 2019, DOI: 10.4236/psych.2019.102019
Abstract: Most of the educational programs worldwide have focused on the diverse competences of the students, but in all of them, collaborative learning plays an important role. It is likely that many institutions are unaware of the teaching strategies that can produce collaborative learning in the classroom. Therefore, the present study aimed to design and evaluate the psychometric properties of a scale that examined the frequency of use of teaching strategies that led to collaborative learning in students. Nine subscales were designed, each one measuring a different strategy, these were evaluated by expert judgment and subsequently, they were applied to a sample of 200 high school teachers. Based on the data obtained, it is possible to provide evidence, through exploratory factor analysis and Cronbach’s alpha, of the instrument’s validity and reliability.
Cardenalización del índice de marginación: una metodología para evaluar la eficiencia del gasto ejercido en el Ramo 33
Cárdenas Rodríguez, óscar Javier;
EconoQuantum , 2010,
Abstract: the deprivation index developed by the national population council is an ordinal measure indicating the degree of exclusion from the enjoyment of economic development experienced by regions (states, municipalities and towns). this indicator is widely used, among other things, to target programs to combat poverty. however, due to the methodology used in its construction, the index can not be used to evaluate the effectiveness of some government programs aimed at reducing the social gap. in this paper a methodology for the "cardenalización" of the index is proposed. it transforms the original index into a cardinal measure in such a way that it can be employed to quantify the improvements and setbacks in the level of welfare of different areas of the country. additionally, the technique is applied to evaluate the effects of ramo 33 transfers in changes of marginalization at the state level.
Utilización del modelo de esquemas cognitivos de base (SCB) para la confirmación del núcleo de una representación social: Análisis del movimiento antiglobalización
Cárdenas, Manuel;Rodríguez, Roberto;
Psicologia & Sociedade , 2006, DOI: 10.1590/S0102-71822006000300016
Abstract: in this paper we used a method for the corroboration of the central core of a social representation based on an adaptation of the model of basic cognitive schemes. we have worked on the data from a previous study on social representation of the anti-globalization movement. this research seeks to determine if the most relevant quantitative elements are, simultaneously, those of greater connectivity (qualitative relevance). it also seeks to analyze the type of connections established between these central elements (on the base of the five families of schemes specified by the theory of scb and its corresponding connectors) and the concepts associated to these stimuli.
Regla Fiscal para Determinar el Monto del Subsidio Estatal a la Universidad de Guanajuato Regla Fiscal para Determinar el Monto del Subsidio Estatal a la Universidad de Guanajuato
Oscar Javier Cárdenas Rodríguez
Acta Universitaria , 2012,
Abstract: En este trabajo se propone una contribución especial y una regla fiscal para que el gobierno estatal determine, ex ante, el monto de subsidio ordinario que ha de otorgar cada ejercicio fiscal a la Universidad de Guanajuato. La ventaja de este mecanismo es la eliminación de la negociación presupuestal que se realiza a o con a o entre la Universidad, el Gobierno Estatal y el Congreso Local. An additional tax and a fiscal rule is proposed, in this paper, so that the Local Government determines, ex ante, the ordinary public subsidy it should give each fiscal year to the Universidad de Guanajuato. The advantage of this mechanism is the elimination of the budget negotiation that takes place yearly between the Universidad, the Local Government and the State Congress.
Medidas de Bienestar: De lo General a lo Particular Medidas de Bienestar: De lo General a lo Particular
Oscar Javier Cárdenas Rodríguez
Acta Universitaria , 2012,
Abstract: En este artículo se analizan medidas de bienestar. Se inicia por el producto interno bruto como un indicador a nivel nacional y, al tiempo que éste se analiza, se explican algunas medidas alternativas a nivel agregado, como el PIB ecológico y el índice de desarrollo humano. Después se analizan algunas medidas de carácter microeconómico, como la distribución del ingreso, medidas de pobreza y marginación. Este análisis concluye indicando que la mejor medida de bienestar depende del objetivo específi co que se busque analizar, ya que ninguna medida puede dar respuesta a todas las preguntas relacionadas bienestar. This paper analyzes ways of measuring well-being. The study begins with the gross domestic product (GDP) as a measurement of well-being at the national level. It also discusses alternative ways of measuring well-being at the level of aggregates, such as the ecological GDP and the index of human development (HDI). Moreover, some measurements of the microeconomic type, such as income distribution, poverty, and marginalization are analyzed. This research study states that the best indicator of welfare depends on a given specific objective. This is because none of the ways of measuring well-being is able to provide a definite answer to all the questions related to the welfare of a society.
El lavado de activos culposo o imprudente y sus implicaciones en el sector financiero
Juan Pablo Rodríguez Cárdenas
Contexto , 2004,
The Zhou’s Method for Solving the Euler Equidimensional Equation  [PDF]
Pedro Pablo Cárdenas Alzate, Jhon Jairo León Salazar, Carlos Alberto Rodríguez Varela
Applied Mathematics (AM) , 2016, DOI: 10.4236/am.2016.717172
Abstract: In this work, we apply the Zhou’s method [1] or differential transformation method (DTM) for solving the Euler equidimensional equation. The Zhou’s method may be considered as alternative and efficient for finding the approximate solutions of initial values problems. We prove superiority of this method by applying them on the some Euler type equation, in this case of order 2 and 3 [2]. The power series solution of the reduced equation transforms into an approximate implicit solution of the original equations. The results agreed with the exact solution obtained via transformation to a constant coefficient equation.
Geometrical Evaluation of Cervical Cells. Fractal and Euclidean Diagnostic Methodology of Clinical Application  [PDF]
Javier Rodríguez Velásquez, Miguel Sánchez Cárdenas, Freddy Andrés Barrios Arroyave, Yolanda Soracipa Mu?oz
Journal of Biosciences and Medicines (JBM) , 2018, DOI: 10.4236/jbm.2018.63009
Abstract: Background: The concomitant use of fractal and Euclidian measurements has led to the development of new methodologies of cell evaluation, including a diagnosis of cervical cells that set up differences between normality and various degrees of lesion, to carcinoma. Aim: To confirm the diagnostic capacity of the methodology based on fractal and Euclidian geometry for the mathematical diagnosis through a blind study of normal cells and with different types of lesion, as atypia of undetermined significance (ASCUS), low grade squamous intra-epithelial lesion (LGSIL) and high grade squamous intra-epithelial lesion (HGSIL). Methods: 100 cells of Papanicolaou tests were analyzed and divided into 4 groups according to conventional parameters: 25 normal, 25 ASCUS, 25 LGSIL and 25 HGSIL. By means of the Box-counting Fractal Space, we calculated the fractal dimension and occupying spaces of the border and surface in pixels of the cell nucleus and cytoplasm. The diagnostic parameters of the previously developed methodology were applied and compared with the conventional diagnosis, setting up sensibility, specificity, negative likelihood ratio and Kappa coefficient. Results: The values of the occupation of the border and surface of the cell nucleus and cytoplasm were consistent with the values found by the diagnostic methodology previously found. The subtraction of the nucleus and cytoplasm frontiers presented values between: 189 and 482 for normality; 159 and 432 for ASCUS; 126 to 401 for LGSIL and 39 to 122 for HGSIL. A sensitivity and specificity of 100%, and a Kappa coefficient of 1 were obtained. Conclusions: The capacity of the methodology to diagnose quantitatively the different stages in the evolution of the cervical cells observed in Papanicolaou tests was confirmed, from normality to HGSIL.
Métodos alternativos en la conservación de Trichoderma harzianum Rifai
Rodríguez Batista,Dayamí; Gato Cárdenas,Yohana;
Fitosanidad , 2010,
Abstract: conservation of trichoderma harzianum rifai a-34 strain, used in mass production, was evaluated stored in silica gel, distilled water and under mineral oil. viability, morphological characters and antagonist capacity had been evaluated for one year. samples conserved in sterile distilled water and under mineral oil showed no differences from the original culture stored in potato dextrose agar at 40 c, while those conserved in silica gel were viable for three months only.
Da?os en germoplasma de cebada (Hordeum vulgare Lin.) producidos por Rhyzoperta dominica FABRICIUS
Cárdenas,Regla M; Ortiz,R; Rodríguez,Odile;
Cultivos Tropicales , 2009,
Abstract: quantitative damages caused by stored pests are vitally important to seeds destined for investigation, since there are generally very small amounts. the study was carried out in seeds from 96 syrian barley lines preserved for six months at 15 + 2oc, with the objective of knowing this sort of losses provoked by rhyzoperta dominica f.; thus, weight reduction (g) was considered, 1000-grain weight (pmg) was determined, the number of adult insects in 1000 grains (namg) was estimated and attack index (ia) was also calculated. results showed that 12 lines were damaged by r. dominica, with an average weight (g) loss of 18 %; the lines studied showed a low pmg (32.38 g), whereas the estimated namg was of 31.25 and ia of 3.17 %.
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