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Search Results: 1 - 10 of 607416 matches for " Jesús Espasandín López "
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Devolviendo el balón a la cancha: Diálogos con Walter Mignolo
Iglesias Turrión,Pablo; Espasandín López,Jesús; Errejón Galván,I?igo;
Tabula Rasa , 2008,
Abstract: this article originated with discussions maintained with walter d. mignolo during the summer course titled “decolonial thought and the surge of indigenous peoples as new political subjects in latin america,” held at el escorial between the 24th and 28th of july, 2006. our primary objective is to continue the debate, organizing and systematizing large part of the arguments that opposed walter’s thesis, to try to present a group of questions and arguments around the notion of epistemic turn. second objective is to provide elements that can be used to create a liberating theoretical cartography that allows articulating and relating the fights and processes of collective action of the attacked subaltern subjectivities in different areas of the planet by the dynamics of domination and exploitation of capitalist modernity, as well as overcoming the euro-centric defects of a large part of the emancipating thought traditions of classic anti-systemic movements. in third place, we ask ourselves the question with which professor heriberto cairo opened the course: it is possible to decolonize europe? we will thus inquire about the possibility of a communication interface between the movements in latin america and europe, and about the radiation of indigenous political cultures outside of their range of immediate insertion.
El regreso de Túpac Katari1. Bolivia y los procesos de transformación global del capitalismo
Errejón Galván,I?igo; Espasandín López,Jesús; Iglesias Turrión,Pablo;
Tabula Rasa , 2007,
Abstract: the electoral victory in 2005 of the socialist movement headed by eva morales had a worldwide significance. in this article, we will hold that the political events in bolivia over recent years have to be interpreted as more than a mere change in the country’s political elite. what is happening in bolivia is, in our judgment, the institutional crystallization of a set of processes that converged with the start of a cycle of anti-neo-liberal fights that initiated in the year 2000. the origins and effects of that "rebel cycle" transcend the country scale, even though it represents its most visible space of materialization. in first place, using the perspective of wallerstein’s world-system, we present an explanation of the historical tendencies of transformation of geopolitical power distribution and the integration dynamics of capitalism. we pay special attention to the effects of systemic reordering of neo-liberal globalization since the 1970s. in second place, we examine the effects of neo-liberalism on the geopolitical situation of bolivia and its determining influence on the emergence of indigenous political identities, as well as the crisis of political protagonism of the bolivian miner proletarians, within the framework of impugnation processes of coloniality. in third place, we analyze some aspects of the influence of these elements (global systemic dynamics and transformation of class structures) on the constitutional process currently open in bolivia. we describe the interactions between the political actors that intervene in the constitutional process, paying special attention to the role of social movements.
El regreso de Túpac Katari. Bolivia y los procesos de transformación global del capitalismo
I?igo Errejón Galván,Jesús Espasandín López,Pablo Iglesias Turrión
Tabula Rasa , 2007,
Abstract: La victoria electoral en diciembre de 2005 del Movimiento al socialismo encabezado por Evo Morales tuvo una significación mundial. En este artículo defenderemos que los acontecimientos políticos bolivianos de los últimos tiempos deben ser interpretados como algo más que un mero recambio en las elites políticas del país. Lo que está ocurriendo en Bolivia es, a nuestro juicio, la cristalización institucional de un conjunto de procesos que convergieron en la apertura de un ciclo de luchas anti-neoliberales iniciado en el a o 2000. Los orígenes y efectos de este ciclo rebelde trascienden la escala estatal aún cuando ésta represente su espacio de materialización más visible. Een primer lugar, usando la perspectiva del sistema-mundo de Wallerstein, llevaremos a cabo una explicación de las tendencias históricas de transformación en la distribución geopolítica del poder y en las dinámicas de integración del Capitalismo. Prestaremos particular atención a los efectos de reordenación sistémica de la globalización neoliberal desde los a os 70. segundo lugar, examinaremos los efectos del Neoliberalismo en la situación geopolítica de Bolivia y su influencia determinante en la emergencia de las identidades políticas indígenas, así como en la crisis de protagonismo político del proletariado minero boliviano, en el marco de procesos de impugnación de la colonialidad . Een tercer lugar, analizaremos algunos aspectos de la influencia de los elementos anteriores dinámicas sistémicas globales y transformación de la estructura de clases en el proceso constituyente actualmente abierto en Bolivia. Intentaremos describir las interacciones entre los actores políticos que intervienen en el proceso constituyente prestando especial atención al papel de los movimientos sociales
Devolviendo el balón a la cancha. Diálogos con Walter Mignolo
Pablo Iglesias Turrión,Jesús Espasandín López,I?igo Errejón Galván
Tabula Rasa , 2008,
Abstract: El presente artículo tiene su origen en las discusiones mantenidas con Walter Dd. Mignolo en el curso de verano "El pensamiento descolonial y el surgimiento de los indígenas como nuevo sujeto político en América Latina", celebrado en Escorial entre el 24 y el 28 de Julio de 2006. Nuestro primer objetivo es continuar el debate ordenando y sistematizando buena parte de los argumentos que se opusieron a las tesis de Walter para tratar de presentar un conjunto de cuestiones y argumentos frente a la noción de giro epistémico. Nuestro segundo objetivo es aportar elementos para la elaboración de una cartografía teórica liberadora que permita articular y relacionar las luchas y procesos de acción colectiva de las subjetividades subalternas agredidas en diferentes áreas del planeta por las dinámicas de dominación y explotación de la modernidad capitalista, así como superar los defectos euro-céntricos de buena parte de las tradiciones de pensamiento emancipador de los movimientos antisistémicos clásicos. En tercer lugar, nos plantearemos la pregunta con la que el profesor Heriberto Cairo inauguraba el curso: Es posible descolonializar Europa? Indagaremos así sobre la posibilidad de una interfaz comunicadora entre los movimientos de América Latina y Europa y sobre la irradiación de las culturas políticas indígenas fuera de su ámbito de inserción inmediata.
Application of Nejayote as a Foliar and Edaphic Fertiliser to Native Blue Maize (Zea mays L.) Crops  [PDF]
Victoria Téllez, Jesús F. López, Agustín Aragón, Teresa Zayas
American Journal of Plant Sciences (AJPS) , 2016, DOI: 10.4236/ajps.2016.715196
Abstract: Raw and treated “nejayote” were assessed as foliar and edaphic fertilisers for native blue maize (Zea mays L.) crops in the municipality of Amozoc de Mota, Puebla, Mexico, during the 2015 agricultural cycle. Treated nejayote refers to raw nejayote subjected to a coagulation-flocculation process. Two states of nejayote were established (raw and treated nejayote) with different physicochemical properties. Foliar bio-fertilisers were prepared from raw and treated nejayote and mixed with organic matter (OM) to promote a fermentation process. The foliar treatments used were: BNC5, BNC15, BNC30 (raw nejayote-based bio-fertiliser at 5%, 15%, and 30%), BNCQ5, and NCQ30 (nejayote treated by chemical coagulation at 5% and 30%), with BT as a control (traditional bio-fertiliser). The edaphic treatments used were: NC50, NC75, and NC100 (raw nejayote at 50%, 75%, 100%), with AP as a control (drinking water), thus giving rise to 10 treatments in terms of content of raw or treated nejayote. Foliar and edaphic field treatments applied to native blue maize crops were statistically assessed using the following response variables: plant height, stem diameter, number of leaves, and grain yield. The experiment was laid out in a randomised complete block design (RCBD) with five replications of each treatment. The results obtained showed, that foliar or edaphic application at the different stages of development did not produce statistically significant differences, at P ≤ 0.05, in terms of response variables. The most significant effects occurred at the early stage of plant development and were mainly reflected in the stem diameter with foliar treatment NCQ30 and in the number of leaves with foliar treatment BNC5. At the final stage of crop development, the highest yield (0.639 ± 0.121 t·ha-1) was obtained with treatment BNC5, which produced a statistically significant difference (b) in relation to the rest of the foliar and edaphic treatments (Tukey P ≤ 0.05).
TiO2 Films Synthesis over Polypropylene by Sol-Gel Assisted with Hydrothermal Treatment for the Photocatalytic Propane Degradation  [PDF]
Vanessa Guzmán-Velderrain, Yudith Ortega López, Jesús Salinas Gutiérrez, Alejandro López Ortiz, Virginia H. Collins-Martínez
Green and Sustainable Chemistry (GSC) , 2014, DOI: 10.4236/gsc.2014.43017
Abstract:
The present investigation shows experimental results obtained with TiO2 thin films synthesized by the sol-gel method assisted with hydrothermal treatment over polypropylene, using the dip coating technique. Obtained coatings were characterized through SEM, XRD, UV-Vis and the photo- catalytic activity was monitored by GC. According to results, the hydrothermal treatment facilitates the crystallization of the TiO2 anatase phase, which is present in all synthesized films. Crystal size formed from precursor solutions (estimated by the Scherrer’s equation) depends on the time and temperature of the hydrothermal treatment, wherein solution exposed to a higher temperature treatment of 150C for 1.5 h (H150/1.5) exhibited a larger crystal size compared to those synthesized at 80C for 1.5 h and 3 h (H80/1.5 and H80/3). Sample H150/1.5 over polypropylene resulted in a uniform and crack free coating. This behavior was attributed to the precursor solution being denser than those synthesized at 80C. Additionally, the photocatalytic activity of the coatings was evaluated through the degradation of propane. Coating H150/1.5 reached 100% conversion after 3 h of UV light irradiation.
Minimal strong digraphs
Jesús García-López,Carlos Marijuán
Mathematics , 2010,
Abstract: We introduce adequate concepts of expansion of a digraph to obtain a sequential construction of minimal strong digraphs. We characterize the class of minimal strong digraphs whose expansion preserves the property of minimality. We prove that every minimal strong digraph of order $n\geq 2$ is the expansion of a minimal strong digraph of order $n-1$ and we give sequentially generative procedures for the constructive characterization of the classes of minimal strong digraphs. Finally we describe algorithms to compute unlabeled minimal strong digraphs and their isospectral classes.
Bounded geometry and leaves
Jesús A. álvarez López,Ramón Barral Lijó
Mathematics , 2015,
Abstract: The main theorem states that any complete connected Riemannian manifold of bounded geometry can be isometrically realized as a leaf with trivial holonomy in a compact Riemannian foliated space.
Situational Diagnosis of the Social Sphere of Elders Living in Retirement Homes  [PDF]
Verónica Benavides Pando, Martha Ornelas Contreras, Jesús Enrique Peinado Pérez, Juan Cristóbal Barrón Luján, Lepoldo Refugio López Baca
Advances in Aging Research (AAR) , 2015, DOI: 10.4236/aar.2015.42006
Abstract: A situational diagnosis of the social sphere of elder permanent residents at retirement homes in Chihuahua City was created with the aid of the Social Resource Scale instrument. From the 51 participants, there were 30 female and 21 male elders. The results and conclusions of the present study highlight two major needs: a systematic assessment of permanent residents in retirement homes and the implementation of a physical activation program. The proposed physical activation program must focus on both, the recovery of motor independence and the increase of socialization activities which allows members of the retired community to improve their daily routine performance and lessens the work load on their caretakers.
Bright Red Luminescence and Structural Properties of Eu3+ Ion Doped ZnO by Solution Combustion Technique  [PDF]
Sebastián López-Romero, María Jesús Quiroz-Jiménez, Manuel Hipólito García, Alfredo Aguilar-Castillo
World Journal of Condensed Matter Physics (WJCMP) , 2014, DOI: 10.4236/wjcmp.2014.44024
Abstract: Pure, and Europium ion doped Zinc oxide nanocrystals (ZnO:Eu3+) were synthesized by a solution combustion technique. The X-ray diffraction patterns (XRD) reveals the existence of the Eu2O3 phase. From the results of both, X-ray diffraction and photoluminescence spectra (PL) reveal that Eu3+ ions successfully substitute for Zn2+ ions in the ZnO lattice, moreover, when the amount of doped Europium was varied, this changes are showed in changes in the luminescence intensity. The PL is broad and a set of colors was emitted which originates from ZnO and the intra 4f transitions of Eu3+ ions. The existence of the Zn-O, Eu3+-O and O1s bonding energies were confirmed by X-ray photoelectron spectroscopy (XPS) technique. The samples morphology was registered by a scanning electron microscopy (SEM) technique, and reveals that Europium ions are present on the surface of the ZnO nanocrystals.
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