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Search Results: 1 - 10 of 17648 matches for " Ruiz Campos "
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Padr es Setoriais de Inova o na Indústria Brasileira
Bruno Campos,Ana Urraca Ruiz
Revista Brasileira de Inova??o , 2009,
Abstract: The article aims investigate features of the technical change in Brazilian industry. Theliterature related to sectoral patterns of innovation is utilized as theoretical framework, whereashierarchical and non-hierarchical clustering analyses are used as methodological resource.Utilizing the Industrial Survey of Technological Innovation (PINTEC 2000) of the BrazilianGeography and Statistics Institute (IBGE) will be analyzed five features of the industrialtechnological innovation: the innovative sources, the knowledge and learning processes, thetechnological trajectories, the innovative outputs, and the market structure/performance.The results show that intersectoral diversity cannot be neglected to understand the innovativeperformance of Brazilian industry. Although some specificities, the innovative conduct ofBrazilian industrial sectors are coherent with the international literature.
Territorio y nuevas ruralidades: un recorrido teórico sobre las transformaciones de la relación campo-ciudad
RUIZ RIVERA,NAXHELLI; DELGADO CAMPOS,JAVIER;
EURE (Santiago) , 2008, DOI: 10.4067/S0250-71612008000200005
Abstract: several disciplines have discussed the formal characteristics of rural spaces, as well as the appropriate concepts for studying their reconfiguration. this essay focuses on reviewing the approaches to analyze contemporary ruralities and groups them infour categories: a) the sociological-analytical approaches, which refer to political, social and cultural processes that emerge as a result of globalization b) the sociological-normative approaches, which intend to understand the causes of social change in order to propose plans that genérate transformation in territories and for the rural people lifestyles c) the spatial approaches, which explore the emergence and linkages among cities of several sizes and their hinterlands andd) the neo-marxist approaches, which study theproduction relationships and their effects on the transformation of rural forms. the contents and theoretical assumptions of these proposals are analyzed to show the underlying different meanings ofrurality and to distinguish different perspectives and methods used by each approach.
Territorio y nuevas ruralidades: un recorrido teórico sobre las transformaciones de la relación campo-ciudad
NAXHELLI RUIZ RIVERA,JAVIER DELGADO CAMPOS
EURE (Santiago) , 2008,
Abstract: En varias disciplinas se presenta una discusión sobre las características formales de los nuevos espacios rurales, y de las categorías analíticas pertinentes para estudiar su reconfiguración. En este ensayo se revisan las diversas perspectivas de estudio de la ruralidad contemporánea y los vínculos rural urbanos, agrupadas en cuatro categorías: a) enfoques sociológicos analíticos de procesos emergentes en la globalización; b) enfoques sociológicos normativos que buscan entender las causas de los cambios socioeconómicos para proponer intervenciones que impulsen esas transformaciones en los territorios rurales; c) enfoques espaciales que abordan el surgimiento y vínculos entre ciudades de distinto tama o y su entorno; y d) enfoques neomarxistas que analizan las formas de producción y sus repercusiones en lo rural. Estas propuestas son analizadas para mostrar las formas de problematizar la(s) ruralidad(es), y diferenciar enfoques y métodos para aproximarse a ellas. Several disciplines have discussed the formal characteristics of rural spaces, as well as the appropriate concepts for studying their reconfiguration. This essay focuses on reviewing the approaches to analyze contemporary ruralities and groups them infour categories: a) the sociological-analytical approaches, which refer to political, social and cultural processes that emerge as a result of globalization b) the sociological-normative approaches, which intend to understand the causes of social change in order to propose plans that genérate transformation in territories and for the rural people lifestyles c) the spatial approaches, which explore the emergence and linkages among cities of several sizes and their hinterlands andd) the neo-marxist approaches, which study theproduction relationships and their effects on the transformation of rural forms. The contents and theoretical assumptions of these proposals are analyzed to show the underlying different meanings ofrurality and to distinguish different perspectives and methods used by each approach.
La interculturalidad en la práctica médica del doctor Albert Schweitzer
Campos-Navarro, Roberto;Ruiz-Llanos, Adriana;
Gaceta médica de México , 2004,
Abstract: albert schweitzer (1875-1965) was a young and promising german who at age 29 decided to undertake the profession of medical doctor at the university of strassburg after finishing a career in musical studies in paris (1899) and obtaining in berlin a doctoral degree in philosophy and theology. surprisingly, albert schweitzer, despite his comfortable life in europe, decided in 1913 to practice his medical career in a remote and small equatorial african country. he devoted nearly 50 years of his life caring for the black population at lamaberene, where he built a hospital. in this paper, we attempt to develop some theoretical aspects related with interculturality in the medical practice of dr. albert schweitzer. we begin by considering certain sociocultural variables in hospitals that give care to patients with cultural characteristics that are substantially different from those of the health care personnel who organize, administer, and execute medical functions.
Genética poblacional de cobayas de Colombia, Cavia spp. (Rodentia: Caviidae) con marcadores moleculares RAPD
Aníbal Campos,Héctor; Ruiz-García,Manuel;
Revista de Biología Tropical , 2008,
Abstract: population genetics of colombian guinea pigs, cavia spp. (rodentia: caviidae) with rapd molecular markers. the genus cavia occurs in south america, mainly in grasslands.. we collected blood samples from 97 individuals in six field populations and analyzed them with rapd molecular markers. one wild type (c. anolaimae) was differentiated from the domestic form (c. porcellus), in agreement with other authors who used morphological, osteological and karyotipic results. genetic diversity was considerable in both species, but higher in c. porcellus. the levels of genetic heterogeneity were also higher among the populations of c. porcellus (fst = 0.254) than among the populations of c. anolaimae (fst = 0.118). these significant levels of genetic heterogeneity, and the low levels of gene flow, were consistent with a complex domestication process for cavia porcellus. rev. biol. trop. 56 (3): 1481-1501. epub 2008 september 30.
Genética poblacional de cobayas de Colombia, Cavia spp. (Rodentia: Caviidae) con marcadores moleculares RAPD
Héctor Aníbal Campos,Manuel Ruiz-García
Revista de Biología Tropical , 2008,
Abstract: En el presente estudio, mostramos los primeros resultados moleculares de formas colombianas de Cavia. Claramente, la población silvestre de C. anolaimae fue genéticamente diferenciada de la forma doméstica, C. porcellus, tal como ha sido demostrado por otros autores utilizando resultados morfométricos, osteológicos y cariotípicos. Ambas especies mostraron un considerable nivel de diversidad genética, aunque el segundo taxon mostró niveles mayores de esta diversidad. Los niveles de heterogeneidad genética también fueron mayores entre las poblaciones de C. porcellus (F ST = 0.254) que entre las poblaciones de C. anolaimae (F ST = 0.118). Esos niveles significativos de heterogeneidad genética, y los consiguientes bajos niveles de flujo génico, fueron discutidos comparativamente con los resultados por otros autores analizando otros marcadores moleculares (citocromo-b mitocondrial). Los resultados aquí mostrados son coherentes con un complejo proceso de domesticación en Cavia porcellus. Population genetics of Colombian Guinea Pigs, Cavia spp. (Rodentia: Caviidae) with RAPD molecular markers. The genus Cavia occurs in South America, mainly in grasslands.. We collected blood samples from 97 individuals in six field populations and analyzed them with RAPD molecular markers. One wild type (C. anolaimae) was differentiated from the domestic form (C. porcellus), in agreement with other authors who used morphological, osteological and karyotipic results. Genetic diversity was considerable in both species, but higher in C. porcellus. The levels of genetic heterogeneity were also higher among the populations of C. porcellus (F ST = 0.254) than among the populations of C. anolaimae (F ST = 0.118). These significant levels of genetic heterogeneity, and the low levels of gene flow, were consistent with a complex domestication process for Cavia porcellus. Rev. Biol. Trop. 56 (3): 1481-1501. Epub 2008 September 30.
Strategy for subduing prey in the predatory behavior of Crotalus durissus collilineatus Amaral, 1926, in captivity
Letícia Ruiz Sueiro,Vera Lucia de Campos Brites
Biotemas , 2006,
Abstract: Studies of the predatory behavior of six specimens of hatchlings from the same clutch of Crotalus durissus collilineatus, born and raised in captivity, were conducted. The animal focal technique (observing the snakes through a glass visor) was used in studying the snakes in order to minimize stress. The snakes were fed mice sequentially and were observed until they no longer sought the prey. Different capture strategies were adopted by this subspecies after the first occasion on which prey was caught. Percentages of the total number of capture strategies observed indicate that 20% (n = 4) made use of seizure, and 80% (n = 16) made use of poisoning, as a mean of subduing prey. The strategy of seizing prey manifested itself on the third or fourth occasion that prey was offered and appeared to be linked to the small size of the prey. It was observed that in 95% (n = 20) of the cases, ingestion began with the cranium of the prey. Regardless of the body part that was ingested first by the serpent, all serpents displayed adjustment behavior of the cranium/head and the jaws (“yawning”).
Encapsulation of Phaseolus lunatus Protein Hydrolysate with Angiotensin-Converting Enzyme Inhibitory Activity
Jorge Carlos Ruiz Ruiz,Maira Rubí Segura Campos,David Abram Betancur Ancona,Luis Antonio Chel Guerrero
ISRN Biotechnology , 2013, DOI: 10.5402/2013/341974
Abstract: The objective of recent research has been to seek alternative therapeutic treatments; for this reason, the use of protein hydrolysates from diverse sources has been studied. A way to guarantee that these treatments reach the site of action is through protection with covers, such as microcapsules. Therefore, proteins from the legume Phaseolus lunatus were hydrolyzed and encapsulated with a blend of Delonix regia carboxymethylated gum/sodium alginate (50?:?50?w/w). Hydrolysis release conditions in a simulated gastrointestinal system were obtained using CaCl2 concentrations as the main factor, indicating that lower CaCl2 concentrations lead to an increased hydrolysis release. Beads obtained with 1.0?mM of CaCl2 exhibited a better hydrolysate release rate under intestinal simulated conditions and the proteins maintained an IC50 of 2.9?mg/mL. Capsules obtained with the blend of Delonix regia carboxymethylated gum/sodium alginate would be used for the controlled delivery of hydrolysates with potential use as nutraceutical or therapeutic agents. 1. Introduction Enzymatic hydrolysis of food proteins has produced various biologically active peptides with immunostimulating, opioid, antithrombotic, anticariogenic, and bactericidal or angiotensin-converting enzyme (ACE) inhibitory functions and has been the focus of recent research [1]. The renin angiotensin system plays an important role in blood pressure and in cardiac and vascular functions. Renin produces decapeptide angiotensin I from angiotensinogen. ACE catalyzes the formation of angiotensin II by cleaving the dipeptide from the C-terminal of angiotensin I in the vascular wall [2]. ACE inhibitors have been prescribed for hypertensive patients worldwide, and many clinical application data have demonstrated that ACE inhibitors significantly reduce the morbidity and mortality of patients with myocardial infarction or heart failure [3]. Thus, ACE inhibitors may induce skin rashes, angioneurotic edema, diarrhea, cough, and dizziness [4]. Because hypertensive patients often need life-long medical treatment, interest has been focused on the isolation and identification of ACE-inhibitors which may be obtained from new and varied sources like foods [5]. Legumes are widely consumed in south-eastern Mexico as a major dietary protein source in both human and animal diets. Phaseolus lunatus L. is distributed throughout Latin America, the southern United States, Canada, and many other regions worldwide. It is a reasonably drought-tolerant legume with reported yields as high as 1500?kg/ha and is known to be an efficient
Probabilistic tractography of the posterior subthalamic area in Parkinson’s disease patients  [PDF]
M. G. García-Gomar, Luis Concha, S. Alcauter, J. Soto Abraham, J. D. Carrillo-Ruiz, G. Castro Farfan, Francisco Velasco Campos
Journal of Biomedical Science and Engineering (JBiSE) , 2013, DOI: 10.4236/jbise.2013.63A048
Abstract:

Deep brain stimulation (DBS) is a non-pharmacological treatment for Parkinson’s disease (PD), and its efficacy depends largely on which anatomical structure (target) is stimulated. The subthalamic nucleus (STN) is one of the most commonly used targets, but stimulation of new targets within the posterior sub-thalamic area (PSA), comprising a group of white matter fibers known as prelemniscal radiations (Raprl), as well as the caudal zonaincerta nucleus (Zic), have proven to be superior at improving certain clinical symptoms. Despite their clinical usefulness, their anatomical connectivity has not been completely described in humans. We performed constrained spherical deconvolution of the signal in diffusion-weighted images and subsequent tractography as a means to non-invasively define the connectivity of the Raprl and Zic in a group of five patients with PD. Further, we used track-density imaging, a novel method to improve the spatial resolution of the acquired images, in order to visualize the small subregions that comprise the PSA with a voxel resolution of 0.2 × 0.2 × 0.2 mm3. Both Raprl and Zic demonstrated high probability of connectivity with the dorsal brainstem, cerebellum, subcortical nuclei (globus pallidum ventral, lateral thalamic nuclei), and cortical areas (orbitofrontal cortex, primary and supplementary motor cortex areas). The connectivity patterns were re-producible between patients and were discretely organized as the tracts entered/exited the PSA, depending on their end points. These findings indicate that the PSA is part of the neuronal circuitry controlling movement, and the precise characterization of its connectivity will aid in our understanding of the net-works involved in PD and how they can be modulated with DBS in order to alleviate symptoms.

New specimens and records of chondrichthyan fishes (Vertebrata: Chondrichthyes) off the Mexican Pacific coast Nuevos ejemplares y nuevos registros de peces cartilaginosos (Vertebrata: Chondrichthyes) de la costa del Pacífico mexicano
Gorgonio Ruiz-Campos,José Luis Castro-Aguirre,Eduardo F. Balart,Lucía Campos-Dávila
Revista mexicana de biodiversidad , 2010,
Abstract: New specimens and new records of occurrence for 10 species of chondrichthyan (elasmobranch and chimaeroid) fishes previously unknown or little documented for the continental shelf of the Mexican Pacific are reported. This contribution provides the first record of Centroscyllium nigrum, Isurus paucus, and Bathyraja trachura for the Mexican Pacific, as well as new specimens of Hydrolagus colliei, Hexanchus griseus, Echinorhinus cookei, Pseudocarcharias kamoharai, and Raja velezi for the western coast of the Baja California Peninsula, including the intermediate record within the known distribution range for Apristurus kampae, and the southernmost record for Raja inornata. Se reportan nuevos ejemplares y nuevos registros de concurrencia para 10 especies de elasmobranquios previamente desconocidos o con muy poca documentación en aguas del Pacífico mexicano. Esta contribución ofrece el primer registro de Centroscyllium nigrum, Isurus paucus, y Bathyraja trachura en el Pacífico mexicano; así como nuevos ejemplares de Hydrolagus colliei, Hexanchus griseus, Echinorhinus cookei, Pseudocarcharias kamoharai y Raja velezi en la costa occidental de la península de Baja California, con la inclusión del registro intermedio en el ámbito de distribución conocida para Apristurus kampae, y el registro más meridional para Raja inornata.
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