oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 17 )

2018 ( 36 )

2017 ( 24 )

2016 ( 46 )

Custom range...

Search Results: 1 - 10 of 26510 matches for " González-Weil "
All listed articles are free for downloading (OA Articles)
Page 1 /26510
Display every page Item
La indagación científica como enfoque pedagógico: estudio sobre las prácticas innovadoras de docentes de ciencia en EM (Región de Valparaíso) Aproxima o à Indaga o Científica como Enfoque Pedagógico: Estudo sobre as práticas inovadoras de docentes de ciências, em aulas de educa o média/secundária, na Regi o de Valparaíso, Chile Approach to inquiry as orientation to science teaching: a study abo
Corina González-Weil,Mónica Cortéz,Paulina Bravo,Yasnina Ibaceta
Estudios Pedagógicos (Valdivia) , 2012,
Abstract: El presente trabajo refiere los resultados de un estudio cualitativo cuyo objetivo fue describir y comprender las prácticas de seis docentes de ciencia en Educación Secundaria que han logrado transformar su ense anza, aproximándose a un enfoque indagatorio. El enfoque metodológico empleado fue Grounded Theory, el cual se aplicó a la observación de 54 horas (cr.) de clase. El estudio aporta con información descriptiva y comprensiva sobre las características de las prácticas observadas, así como las condiciones que las permiten y las consecuencias que conllevan. Se finaliza discutiendo el impacto que este estudio tiene sobre la formación inicial y continua de docentes de ciencia de Educación Secundaria. O presente trabalho mostra os resultados de um estudo qualitativo, cuja finalidade é descrever e compreender as práticas de ensino de seis professores de ciências secundários, que vieram a transformar seus métodos de ensino, aproximando-os de uma técnica de questionamento, indaga o. O método usado foi o Grounded Theory, aplicado à observa o de 54 horas de aulas (cr.). Esta pesquisa contribui com informa o descritiva e detalhada sobre características das práticas observadas, assim como as circunstancias que as permitiram e suas conseqüências. Finalmente, nós discutimos as implica es que este estudo tem na forma o inicial e contínua de professores de ciências de nível médio/secundário. This research refers the results of a qualitative study which purpose was to describe and understand the teaching practices of six secondary science teachers who have transformed their teaching practice by applying an inquiry approach. The method used was Grounded Theory applied to the observation of 54 class hours (cr.). This research contributes with descriptive and comprehensive information about characteristics of the observed practices, as well as the conditions that allow them and their consequences. Finally, we discuss the implications that this study has on pre-service and in-service secondary science teacher education.
La indagación científica como enfoque pedagógico: estudio sobre las prácticas innovadoras de docentes de ciencia en EM (Región de Valparaíso)
González-Weil,Corina; Cortéz,Mónica; Bravo,Paulina; Ibaceta,Yasnina; Cuevas,Karen; Qui?ones,Paola; Maturana,Joyce; Abarca,Alejandro;
Estudios pedagógicos (Valdivia) , 2012, DOI: 10.4067/S0718-07052012000200006
Abstract: this research refers the results of a qualitative study which purpose was to describe and understand the teaching practices of six secondary science teachers who have transformed their teaching practice by applying an inquiry approach. the method used was grounded theory applied to the observation of 54 class hours (cr.). this research contributes with descriptive and comprehensive information about characteristics of the observed practices, as well as the conditions that allow them and their consequences. finally, we discuss the implications that this study has on pre-service and in-service secondary science teacher education.
LA EDUCACION CIENTIFICA COMO APOYO A LA MOVILIDAD SOCIAL: DESAFIOS EN TORNO AL ROL DEL PROFESOR SECUNDARIO EN LA IMPLEMENTACION DE LA INDAGACION CIENTIFICA COMO ENFOQUE PEDAGOGICO Scientific education as a support of social mobility
Corina González Weil,María Teresa Martínez Larraín,Carolina Martínez Galaz,Karen Cuevas Solís
Estudios Pedagógicos (Valdivia) , 2009,
Abstract: La educación es uno de los principales factores que promueven la movilidad social, siendo la educación secundaria clave, tanto para el desarrollo de procesos cognitivos superiores como para la definición del destino de los individuos, una vez que egresan del sistema escolar. La educación científica, mediante la generación de competencia científica, puede colaborar fuertemente en este desarrollo. A nivel tanto internacional como nacional se promueve el uso de la indagación científica como un enfoque pedagógico efectivo en el desarrollo de estas competencias, especialmente bajo contextos de alta vulnerabilidad. El presente trabajo expone algunos rasgos claves que debiera tener el profesor para implementar este enfoque. Finalmente se reflexiona acerca del rol de las universidades formadoras de profesores en el logro de este desafío. Education is one of the main factors that promote social mobility. Secondary education is important for the development of upper cognitive processes as for the destiny of the individuals, once they graduate of the school system. Scientific education, by means of the generation of scientific competence, can collaborate strongly in this development. At international and national level, the use of scientific inquiry is promoted as an effective pedagogical focus in the development of these competences, especially, at contexts of high vulnerability. The present work exposes some key features that teachers should have to implement this pedagogical focus. Finally, the role of science secondary teacher education is discussed.
LA EDUCACION CIENTIFICA COMO APOYO A LA MOVILIDAD SOCIAL: DESAFIOS EN TORNO AL ROL DEL PROFESOR SECUNDARIO EN LA IMPLEMENTACION DE LA INDAGACION CIENTIFICA COMO ENFOQUE PEDAGOGICO
González Weil,Corina; Martínez Larraín,María Teresa; Martínez Galaz,Carolina; Cuevas Solís,Karen; Mu?oz Concha,Liber;
Estudios pedagógicos (Valdivia) , 2009, DOI: 10.4067/S0718-07052009000100004
Abstract: education is one of the main factors that promote social mobility. secondary education is important for the development of upper cognitive processes as for the destiny of the individuals, once they graduate of the school system. scientific education, by means of the generation of scientific competence, can collaborate strongly in this development. at international and national level, the use of scientific inquiry is promoted as an effective pedagogical focus in the development of these competences, especially, at contexts of high vulnerability. the present work exposes some key features that teachers should have to implement this pedagogical focus. finally, the role of science secondary teacher education is discussed.
Glioblastoma Multiforme-Treating a Deadly Tumor with Both Strands of RNA.
Weil
PLOS Medicine , 2005,
Abstract:
Some New Questions about the Seasonal Decrease of the Ozone Layer  [PDF]
Jaime González Velasco
Green and Sustainable Chemistry (GSC) , 2012, DOI: 10.4236/gsc.2012.23016
Abstract: The depletion-recovery cycle of the ozone layer is explained on the basis of the magnetic properties of oxygen, ozone, nitrogen oxides and chlorine combinations, which upon interaction with the Earth’s magnetic field, give rise to gaseous fluxes polar- and equatorial-wards.
What Does “Noise Pollution” Mean?  [PDF]
Alice Elizabeth González
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.54037
Abstract:

Noise features different characteristics that make it different from every other “classic” pollutant. Noise is invisible; it does not smell; it disappears when the source is turned off and leaves no traces in the environment. In addition, when people perceive something wrong about their hearing capacity, it is often long time after the beginning of noise exposure. This fact contributes to strengthening the misconception that noise is not harmful to human health or, at least, efforts and funds aim preferably at controling and decreasing the emission of other pollutants. Adding to this, most people tend to consider that noise is the price to pay for accessing to the amenities of the Technological Era and it is indivisible and inevitably linked to them. Last but not least, noise pollution could adversely affect ecosystems and ecological services. Then, how is it possible to convince the decision makers that noise pollution is one of the major current environmental problems? The aim of this paper is to discuss step by step the applicability of noise of a “pollution” definition, as a way to ease the understanding that lowering environmental noise levels should be prioritized: because it will lead to a healthier and better society.

Some Ideas about the Thermal Equilibrium in the Biosphere and the Entropy Variation Ascribed to Changes in the Radiations Wavelengths  [PDF]
Jaime González Velasco
Open Journal of Physical Chemistry (OJPC) , 2015, DOI: 10.4236/ojpc.2015.54011
Abstract: An explanation is given for the thermal equilibrium in the biosphere, which is based in the equality between the thermal energy received from the sun and the thermal energy reemitted from the atmosphere to the space. In order to understand the origin of the energy that gives rise to the processes and phenomena taking place in the biosphere, it is necessary to take into account the free energy represented by the product of temperature times the change in entropy, T△S, whose magnitude can be attributed to the variation experimented by the wavelengths (or, consequently, the frequencies) of the radiations composing the radiation spectrum received from the sun compared with the radiation spectrum reemitted from the biosphere into the space. A simple discussion allows to predict that the entropy increase driving the processes is connected with a spontaneous conversion of high frequency radiations (with lower “content” of entropy) in radiations of lower frequencies (with higher “content” of entropy). A consequence of this is that high frequency radiations would correspond to more ordered states and, therefore, to less probable states than those corresponding to radiations of lower frequencies.
Modeling of the Water Table Level Response Due to Extraordinary Precipitation Events: The Case of the Guadalupe Valley Aquifer  [PDF]
Javier González Ramírez, Rogelio Vázquez González
International Journal of Geosciences (IJG) , 2013, DOI: 10.4236/ijg.2013.46088
Abstract:

A two-dimensional algorithm for underground water flow simulation was modified and adapted to the geohydrologic conditions of the Guadalupe valley located in the state of Baja California in northern México. In order to solve the numerical model using the balance equation, the central finite differences with spatial and temporal constant increments method were used. Such model considers a heterogeneous and transient unconfined aquifer. Modeling and calibration processes are presented using the data of water table levels provided by the water level data loggers installed in a monitoring network and precipitation data from climatic stations of both seasons: 2009-2010 and 2010-2011. It was possible to locate, correlate and model specific rainfall-recharge events with the aim of obtaining an estimation of how these events are directly reflected on the water table level of the aquifer and how it reacts against simulated extraordinary events.

Thermodynamic and Dynamic of Chromium Biosorption by Pectic and Lignocellulocic Biowastes  [PDF]
Luis Sala, Juan González
Journal of Water Resource and Protection (JWARP) , 2010, DOI: 10.4236/jwarp.2010.210106
Abstract: Orange peel (OP) and rice husk (RH) were tested as low-cost biosorbents for Cr(III) removal from aqueous solutions. Dynamics of the biosorption process indicated that intraparticle mass transfer represents the rate-limiting step in the system that attained equilibrium at 120 min. While the OP sorbent material was capable of taking up 39.11 mg Cr(III)/g at the optimum pH 4.4, RH immobilized 3.20 mg Cr(III)/g at the optimum pH 3.0. The fitting of different sorption isotherms models resulted in the best fit with the Langmuir isotherm model. The mean free energy of the metal sorption process was in the range of 8-16 kJ/M. Abiotic Cr(VI) reduction was observed at various contact times and Cr-laden biomass was characterized by XPS, XAFS and EPR spectroscopy. These instrumental analyses confirmed that Cr(VI) removed from the solution was reduced and bound to the biomass as Cr(III). Results indicated that OP and RH materials are efficient biosorbents for eliminating Chromium from aqueous solutions.
Page 1 /26510
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.