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Search Results: 1 - 10 of 230061 matches for " Ana Nallely Cer n-Ortiz "
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EFFECT OF DENSITY AND NUTRITIONAL QUALITY OF DIET ON SURVIVAL AND GROWTH OF LION S-PAW Lyropecten (Nodipecten) subnodosus SPAT.
Ana Nallely Cer n-Ortiz,Beatriz Cordero,Cecilia Flores-Vergara,Patricia Ascencio-Padilla
Journal of Fisheries International , 2012,
Abstract: The effect of the density and nutritional quality of the diet on the growth and survival of the organism had been evaluated in different species of Mollusk. In bivalve low growth and survival had been registered in high densities of culture and poorer nutritional quality of the diet. The scallop Lyropecten (Nodipecten) subnodosus is an organism with a high commercial value. However, in this species few researches had been performed to evaluate the effect of the density and nutritional quality of the diet on the growth and survival, principally in stages of larvae and spat. The objective in this study was to evaluate the effect of the survival and nutritional quality of the diet on the growth and survival of L. (N.) subnodosus spat. In this study, the results of growth and survival obtained to show significant differences between densities and nutritional quality of the diet. The major results of length, total dry weight, organic content and survival were obtained in the organism cultured in the lowest density and fed with the mixture diet M1 (Pavlova lutheri and Chaetoceros calcitrans). The mixture diet M1 registered the higher content of protein, carbohydrates and polyunsaturated fatty acids. These components had been essential to the growth and survival of the spat stage, due to its high requirements of protein and fatty acids used for the somatic growth. For this reason the high growth and survival were registered in the organism cultured in the lowest density and fed with high protein content and adequate percentages of the polyunsaturated fatty acids (M1).
La norma obligatoria e inderogable de reconocer y garantizar los derechos humanos es exigible al poder constituyente
Marín-Ortiz,Iris;
Estudios Socio-Jurídicos , 2010,
Abstract: this paper argues the existence of limits to the constituent power in moments of constitutional break. this is derived from the current development of international law according to which constitutional contemporary states agree upon the basic rules of the charter of the united nations, the universal declaration of human rights and the mandatory ius cogens rules. those limits are obligatory, even to the constituent power. this paper deals with the challenges for the enforceability of the rule that establishes the obligations of preserving a regime that respects human rights, taking into account the theories about monism, dualism, and reticularidad. in the last part, the research proposes some enforceability alternatives.
La norma obligatoria e inderogable de reconocer y garantizar los derechos humanos es exigible al poder constituyente
Iris Marín-Ortiz
Estudios Socio-Jurídicos , 2010,
Abstract: El trabajo plantea la existencia de límites al poder constituyente en momentos de ruptura constitucional derivados del desarrollo actual del derecho internacional, según el cual los Estados constitucionales contemporáneos se afilian a postulados básicos de la Carta de las Naciones Unidas, la Declaración Universal de Derechos Humanos y las normas imperativas de ius cogens. Esos límites se traducen en la norma inderogable de establecer un régimen respetuoso de los derechos humanos, oponibles incluso al constituyente primario. Además, se abordan los retos para la exigibilidad de la norma que establece la obligación de mantener un régimen respetuoso de los derechos humanos, a partir del monismo, del dualismo y de la reticularidad. En la parte final se proponen algunas posibilidades de exigibilidad.
Repercusión de la cirugía filtrante sobre la perimetría automática Influence of filtering surgery on automated perimetry
MV Antón-Ortiz
Archivos de la Sociedad Espa?ola de Oftalmología , 2004,
Abstract:
Internal Test Sets Studies in a Group of Antimalarials
J. V. De Julián-Ortiz,E. Besalú
International Journal of Molecular Sciences , 2006, DOI: 10.3390/i8200456
Abstract: Topological indices have been applied to build QSAR models for a set of 20 an-timalarial cyclic peroxy cetals. In order to evaluate the reliability of the proposed linearmodels leave-n-out and Internal Test Sets (ITS) approaches have been considered. The pro-posed procedure resulted in a robust and consensued prediction equation and here it isshown why it is superior to the employed standard cross-validation algorithms involvingmultilinear regression models.
Un nuevo Eleutherodactylus (Anura, Leptodactylidae) de la Cordillera de Mérida, Andes de Venezuela
Barrio-Amorós, C. L.,Chacón-Ortiz, A.
Graellsia , 2004,
Abstract: A new frog of the genus Eleutherodactylus is described from the Cordillera de Mérida, Venezuelan Andes. The species is distinguished from others by its moderate size, first finger equal or shorter than second, basal webbing on toes, and dominant colour immaculate brown or with a few spots. The species is compared with the groups unistrigatus and conspicillatus, but not assigned to either of them. A distribution map and a sonogram (of the song) are presented. Comments about current knowledge of frogs of the genus Eleutherodactylus in Venezuela are provided. Se describe una nueva rana del género Eleutherodactylus de la Cordillera de Mérida, Andes de Venezuela. La especie se distingue del resto de congéneres por su tama o moderado, primer dedo de la mano igual o más corto que el segundo, palmeadura pedal basal, y color dominante marrón uniforme o con pocas manchas. Se compara la especie con los grupos unistrigatus y conspicillatus, pero no se asigna a ninguno de ellos. Se presenta un mapa de distribución y un sonograma del canto. Se comenta brevemente sobre el conocimiento actual de las ranas del género Eleutherodactylus en Venezuela.
EVALUACIóN DE CALIDAD DE VIDA EN PACIENTES CON CáNCER: UNA REVISIóN
Juan Domingo Martín-Ortiz,María José Sánchez Pérez,Juan Carlos Sierra
Revista Colombiana de Psicología , 2005,
Abstract: Esta revisión recoge las principales escalas de evaluación de calidad de vida en pacientes de cáncer. Se sigue una estructura marcada por dos clasificaciones independientes: la primera distingue entre índices globales y particulares, en función de que los resultados se describan en forma de un único índice o a través de un perfil de índices, y la segunda distingue entre enfoques particulares y generales, en función de que se analicen las características de una enfermedad en concreto, o bien se opte por contemplar las enfermedades en general. A partir de esta estructura se han incluido los índices globales y particulares relacionados con la enfermedad del cáncer. Aunque los instrumentos de evaluación recogidos gozan, en general, de buenos valores de fiabilidad y poseen una validez comprobada, se pueden subrayar cuatro como los más utilizados en el ámbito internacional y por haber sido aplicados a una mayor variedad de tipos de cáncer: EORTC QLQC30, Rotterdam Symptom Check List (RSCL), Cancer Rehabilitation Evaluation System (CARES) y Functional Assessment of Cancer Therapy (FACT).
FACTORIAL ANALYSES OF THE VOCATIONAL APTITUDES AND SELF-INTERESTS SCALE
JUAN DOMINGO MARTíN-ORTIZ,VIRGILIO ORTEGA LEYVA,JUAN CARLOS SIERRA
Universitas Psychologica , 2002,
Abstract: Eysenck’s proposal of an organizational hierarchy for attitudes (the existence of a fourth level ofabstraction in which the simple attitude elements are grouped) can be applied to the field of vocationalinterests. In order to verify the existence of this relationship, the results obtained from the administration ofthe Subjective Scale of Vocational Interests and Attitudes (ESIAV) to a sample of 162 university students wereused. The 22 vocational areas proportioned by the ESIAV were examined by means of a main componentfactorial analysis, obtaining the following five components: Science, Organizational management, Creativeexpression, Community Service, and Spacial Calculus. The vocational interest structuring in high attitudecomponents is therefore supported.
Morphometric analysis of equid cheek teeth using a digital image processor: a case study of the Pleistocene Cedazo local fauna equids, Mexico
Barrón-Ortiz, Christian Raúl;de la Riva-Hernández, Gilfredo;Barrón-Corvera, Raúl;
Revista mexicana de ciencias geológicas , 2008,
Abstract: the occlusal pattern of the cheek teeth has traditionally been one of the most widely used features to determinate equid species. nevertheless, its large ontogenetic variation and subjective assessment of characters has diminished its reliability. for this reason, many workers have reduced emphasis on the cheek teeth in identifying equid species and have turned their attention to other skeletal elements. we re-emphasize the analysis of the oclusal pattern to determine the number of equid species present in the cedazo local fauna, aguascalientes, mexico. in contrast to previous studies, we only analyzed cheek teeth with an equivalent stage of wear and developed a computer program that integrates a digital image processor to analyze the occlusal pattern and also to take measurements of different features of the occlusal surface. selecting teeth with an equivalent stage of wear reduced the usable sample size significantly. for this reason, the analysis concentrated on the third upper premolars (p3), because they represent the largest sample size. specimens of equus caballus, e. asinus and hybrids were also included to serve as controls. principal components and canonical discriminant functions analyses were performed. the extant species were positively discriminated. moreover, these analyses suggest the presence of two distinct p3 morphotypes for the fossil sample studied, which indicate the possible occurrence of at least two separate equid species for the cedazo local fauna. however, it is prudent to collect more material and evaluate these results with a larger sample size and using the remaining tooth positions. the computer program developed in this study serves as a useful tool for analyzing the occlusal pattern of equid cheek teeth.
Evolución de las características de las arcadas dentarias en dos grupos de edad
Paulino,Vera Susana; Paredes-Gallardo,Vanessa; Gandía-Franco,José Luis; Cibrián-Ortiz de Anda,Rosa María;
RCOE , 2005, DOI: 10.4321/S1138-123X2005000100004
Abstract: introduction: dimensional characteristics of dental arches between two groups of age, adolescents and adults, are compared to analyze the variations associated with age, sex and influence of orthodontic treatment. material and methods: two samples of 88 pairs of stone models from adolescents (average age, 14.05 years) and 65 from adults (average age, 22.15 years) were selected. after cast scanning, a digital program was used to measure dental mesiodistal diameters, intercanine and intermolar widths, arch lengths and lower dental crowding. for the statistic analysis the samples of each age group were divided by sex and by the fact of having been treated or not with orthodontics. results: the values of the mesiodistal diameters in males were greater than in females, and greater in adolescents than in adults, especially in females. the intercanine distance decreased with age in females and the maxillary intermolar distance decreased in untreated females, while the mandibular one increased in males. both arch lengths decreased in both sexes, mainly in the untreated individuals. there is an increase of the anteroinferior dental crowding with age in both sexes in the treated group. conclusions: the loss of dental material with age associated to a greater decrease of arch length could be another factor in the later crowding. also the mesial displacement of the teeth to a narrower part of the arch could explain the decrease in the intercanine and intermolar widths.
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