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Search Results: 1 - 10 of 1302 matches for " Ismael RODEA-PALOMARES "
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POLYCYCLIC AROMATIC HYDROCARBONS IN SOILS FROM A BRICK MANUFACTURING LOCATION IN CENTRAL MEXICO
Ana Lilia BARRáN-BERDóN,Virgilio GARCíA GONZáLEZ,Gustavo PEDRAZA ABOYTES,Ismael RODEA-PALOMARES
Revista internacional de contaminación ambiental , 2012,
Abstract: Los hidrocarburos aromáticos policíclicos (HAP) están ampliamente distribuidos en el ambiente y su origen puede ser natural o antrópico. La mayoría de los HAP ambientales son productos de la combustión incompleta o pirólisis de combustibles fósiles y pueden ser introducidos al suelo vía depositación atmosférica. Los HAP son importantes para la salud pública y el ambiente debido a sus posibles efectos carcinogénicos y mutagénicos y a su influencia da ina en los organismos del suelo y las plantas. En este estudio se analizaron los niveles y composición de 13 HAP de 46 muestras de suelo de San Nicolás, una comunidad manufacturera de ladrillos en el centro de México. Las concentraciones totales de HAP estuvieron entre 7 y 1384 ng/g con un promedio de 220 ng/g. El HAP más abundante fue el naftaleno (Nap), seguido por el fluoreno (Fl), el criseno (Chr), el benzo[a]antraceno (BaA) y el dibenzo[a,h]antraceno (DahA). Al comparar los niveles de HAP en el suelo con las normas mexicanas y estadounidenses, se encontró que alrededor de 52 y 76 % de los suelos de San Nicolás tiene niveles más altos que los considerados normales o no peligrosos para uso residencial con base en cualquiera de las dos normas mencionadas. Más aún, las concentraciones equivalentes de benzo[a]pireno (BaPeq) en los suelos de San Nicolás fueron más altas que las máximas aceptables establecidas por Canadá en 40 a 60 % de los suelos. De especial preocupación son las concentraciones de DaH y BaP, dos HAP con un elevado potencial carcinogénico. Todos estos factores implican un riesgo potencial de cáncer para la población expuesta de San Nicolás.
Literatura y poder: una interpretación en clave simbólica de Los girasoles ciegos
José Palomares
Impossibilia : Revista Internacional de Estudios Literarios , 2012,
Abstract: This article aims to provide a symbolic reading of Los girasoles ciegos (2004) through twoconcepts: light and darkness. This paper deals with the meaning of the title, and it comments thedisposition in the narrative structure of the novel, and the value of duality in every chapter of AlbertoMéndez’s work (1941-2004).
Composición modal de las arenas de la Cuenca del Guadalquivir: evaluación de su procedencia
Palomares, M.
Estudios Geologicos , 1990, DOI: 10.3989/egeol.90465-6467
Abstract: The sedimentation of the Guadalquivir neogene basin between Córdoba and Sevilla towns gave place to a thick marly succession which included several sandstone units: Arenas Basales, Arenas de Ubeda, Arenas del Guadalquivir, Arenas de Ecija, Arenas de Cuesta el Espino (all of them of upper Tortonian age), Arenas de Guadarcázar, Calcarenitas de Carmona (both of Messinian age) and pliocene sands. Arenas Basales have a lithic composition, showing high percentages of metamorphic rock fragments, and derived from metamorphic complexes of the paleozoic Macizo Hespérico located in the N of the basin. Arenas del Guadalquivir and Arenas de Ecija are litharenites and sublitharenites; their rock fragments are mainly carbonatic and derived from neogene sandy formations that cropped out in the N because of the progressive reduction of the basin. Arenas de Ecija derived from the betic mantles that were emplaced in the S of the basin at that time. Arenas Basales and Arenas del Guadalquivir are plataform deposits and Arenas de Ecija are sediments in subsea fans. Finally, Arenas de Guadarcázar and the pliocene sands are quartzarenites and sublitharenites and derived from the underlying sandy formations. The high compositional and textural maturity of Arenas de Guadarcázar was due to the reworking of these sands in a beach environment. The succession reflects an initial stage with first cycle contributions of metamorphic rocks from a stable craton and a later stage in which the source area is formed of sedimentary rocks related to a recycled orogen. In the eastern part of the basin Arenas del Guadalquivir and Arenas de Ecija are litharenites whilst the Arenas de Cuesta el Espino are sublitharenites; the former derived from a recycled orogen, and the latter from a continental block or a stable craton. The compositional evolution of the sands in this side of the basin could indicate a basin edge zone. La sedimentación de la cuenca neógena del Guadalquivir entre las provincias de Córdoba y Sevilla está formada por una potente sucesión margosa en la que se intercalan varias unidades arenosas que, de base a techo, se denominan: Arenas Basales, Arenas de Ubeda, Arenas del Guadalquivir, Arenas de Ecija, Arenas de Cuesta el Espino (todas ellas de edad Tortoniense superior), Arenas de Guadarcázar, Calcarenitas de Carmona (de edad Messiniense) y arenas pliocenas. Arenas Basales tienen una composición lítica, con alto porcentaje en fragmentos de roca metamórficos, y proceden de los complejos metamórficos del Macizo Hespérico paleozoico situado al N de la cuenca. Arenas del Guadalquivir
Double-Chooz Neutrino Experiment
C. Palomares
Physics , 2009,
Abstract: The Double Chooz experiment will use the electron antineutrinos produced by the Chooz nuclear power station to search for a non-vanishing value of the Theta_13 neutrino mixing angle. Double Chooz will be the first of a new generation of neutrino experiments using identical detectors at different distances from the neutrino source to reduce the systematic errors due to the uncertainties on the neutrino flux and to the detector acceptance. The far detector is expected to be operative by the beginning of 2010. Installation of the near detector will occur in 2010.
Heroes’ Dilemma and Believers’ Dilemma  [PDF]
Ismael Tabu?ar Fortunado
Open Journal of Philosophy (OJPP) , 2016, DOI: 10.4236/ojpp.2016.63024
Abstract: Based on our knowledge, understanding, and wisdom, we choose. We sometimes cannot choose both, two or more and nothing. We either believe what we choose or not because of our intentions. Heroes’ dilemma and Believers’ dilemma are about two choices that both have negative results when chosen, but the person may choose the one better than the other based on his character. The author gave twelve examples, eight examples for heroes’ dilemma and four examples for believers’ dilemma. The choice is the good. Heroes’ dilemma requires an act of heroism and believers’ dilemma requires an act of courage. Actions analyses and textual analyses are observed.
Radiator Vibration Fatigue Analysis  [PDF]
Toure Ismael, Buyun Sheng
Journal of Electronics Cooling and Thermal Control (JECTC) , 2017, DOI: 10.4236/jectc.2017.71002
Abstract: This paper is the second step of our work. The first step presents a set of parametric studies performed on automotive radiators by designing different heat exchanger models. The analysis focuses on the cooling performance for automobile radiator by changing several dimensions of the radiator fin phase (P2.5, P2.4, P2.3, P2.2, and P2.1) as well as the importance of coolant flow lay-out on the radiator global performance [1]. The second step consists on the study of the vibration fatigue of the sample with the best heat dissipation performance we design (radiator P2.1). We use Hyper Mesh to proceed with the finite element model. Frequency response analysis is solved by using MSC. Nastran (MSC. MD. Nastran. v2010.1.3-MAGNiTUDE), fatigue durability ana-lysis by using MSC Fatigue. In this experiment, the frequency response of the unit load (the unit load is 1 g) is analyzed. Based on the analysis of the frequency response of the unit load, the fatigue life of the radiator is analyzed by the PSD (power spectral density) curve and the S-N curve. From our experiments results, we observe that the radiator we design meets the international requirements of fatigue vibration under automobile normal working condition.
The Egyptian Web Logs as an Information Resource with a Special Indication to Library and Librarian's Blogs
Shayma' Ismael Abbas Ismael
Cybrarians Journal , 2007,
Abstract: An article is discussing The Egyptian Web Logs ,library blogs and librarian's blogs at the world wide web as one of information electronic sources so this article is answering on some questions. what is conception of blogs?, What is historic development and origin of blogs?, What are reasons to fame and spread blogs between internet employees ?, what is blogging software to create blog?, what is directory and search engine of blogs?, what is characteristics of successful blogs? and concentrates on Egyptian weblogs, what is the most famous Egyptian blogs in the world wide web ? and refer to relationship between the Egyptian weblogs and policy. and special indication to blogs in library and information science which include library blogs and librarian's blogs. this article also is answering on some questions about library blogs and librarian's blogs. what is meaning of library blogs and librarian's blogs? what is purposes and aims of library blogs and librarian's blogs? what is directory of library blogs and librarian's blogs? Are there sorts of library blogs and librarian's blogs? and What are examples of library blogs and librarian's blogs available at the world wide?. to give overview about this electronic source at all its parts.
La arquitectura como propaganda: Una mirada histórica de la arquitectura espa?ola
Portales,Ana; Palomares,Maite;
ARQ (Santiago) , 2012, DOI: 10.4067/S0717-69962012000100011
Abstract: the recent history of spain shows how architectural images were powerful and convincing ideological tools: representation is a proper vehicle to disseminate ideas.
Acondicionamiento de la vivienda en áreas urbanas del norte de México
Palomares León, Humberto;
Frontera norte , 2008,
Abstract: the housing has acquired importance in the world's agendas on urban development. this article proposes a review on the conditions that space of human living offers, central for the development. the housing's conditions in urban areas (from 15 thousand inhabitants and up) of the north of the country are observed regarding the past three decades. it is relevant to observe this phenomenon regarding of the states north of mexico's economic performance, which have shown positive changes in economic growth since the half of the last century. a norm's evaluation of the housing's conditions is made by using data of the samples of the census of population and house of 1990 and 2000.
La arquitectura como propaganda: Una mirada histórica de la arquitectura espa ola Architecture as Propaganda: A Look at the History of Spanish Architecture
Ana Portales,Maite Palomares
ARQ , 2012,
Abstract: Esta revisión de un periodo reciente de la historia de la arquitectura espa ola da cuenta de la elocuencia y poder de las imágenes de arquitectura como promotoras ideológicas y de los alcances de la representación como vehículo de transmisión de ideas. The recent history of Spain shows how architectural images were powerful and convincing ideological tools: representation is a proper vehicle to disseminate ideas.
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