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Search Results: 1 - 10 of 5196 matches for " Eugenia Alejandra; Cravero "
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Relationships among agronomic traits and seed yield in pea
Espósito,María Andrea; Martin,Eugenia Alejandra; Cravero,Vanina Pamela; Liberatti,David; López Anido,Fernando Sebastián; Cointry,Enrique Luis;
BAG. Journal of basic and applied genetics , 2009,
Abstract: the evaluation of selection criteria using correlation coefficients, multiple regression and path analysis was carried out for a period of two years on forty pea genotypes. the correlation analysis revealed that grain yield had genotypic relationships with numbers of pods, seeds per plot, length of the internodes and plant height in 2007 and also with grain diameter, length and width of leaflets and number of nodes at the first pod in 2008. the highest positive direct effects in 2007 were length of the internodes (0.68), seeds per plot (0.38) and numbers of pods (0.26). length leaflets exhibited a negative direct effect (-0.46). the highest positive indirect contribution of plant height mediated by length of the internodes was 0.50. the highest negative indirect contribution was pod length via length of the internodes (-0.35). in 2008, the highest positive direct effects were seeds per plot (0.67), width leaflets (0.33) and numbers of pods (0.25). length leaflets presented the highest negative direct effect (-0.34). the indirect effects were observed via seeds per plot, length and width leaflets; therefore numbers of pods and seeds per plot can be used for indirect selection. the parameter estimated showed that number of pods and seeds, and pod length determined the yield during 2007 and number of pod and seeds, and grain diameter during 2008. the r2 values for both models were 0.60 and 0.89 respectively. the number of pod and seeds per plot were the main components of seed yield, having the maximum direct effects on this trait. these results might be used as selection criteria in order to increase the selection efficiency in pea breeding programs.
EL USO DE UN PARADIGMA EMANCIPADOR PARA LA TEORíA FEMINISTA POSESTRUCTURALISTA EN LA INVESTIGACIóN DE ENFERMERíA: SUS IMPLICANCIAS Y DESAFíOS
Urra,Eugenia; Jana,Alejandra;
Ciencia y enfermería , 2010, DOI: 10.4067/S0717-95532010000300003
Abstract: by merging poststructuralist and feminist theories a new paradigmatic methodology for using in nursing researcher is proposed. from this merger, poststructuralist feminist theory has developed participatory methodologies in which women’s experiences are visible, encouraging emancipation for social change. south american nursing can beneft from this proposition, however, some limitations and challenges must be considered in its use in nursing research.
EL USO DE UN PARADIGMA EMANCIPADOR PARA LA TEORíA FEMINISTA POSESTRUCTURALISTA EN LA INVESTIGACIóN DE ENFERMERíA: SUS IMPLICANCIAS Y DESAFíOS USING AN EMANCIPATORY PARADIGM FOR FEMINIST POSTRUCTURALIST THEORY IN NURSING RESEARCH: IMPLICATIONS AND CHALLENGES
Eugenia Urra,Alejandra Jana
Ciencia y Enfermería : Revista Iberoamericana de Investigacíon , 2010,
Abstract: Las teorías feministas y el posestructuralismo se han unido en una propuesta paradigmática que puede ser usada en la investigación en enfermería. La teoría feminista posestructuralista ha desarrollado una metodología participativa en la cual las experiencias de las mujeres son visibilizadas con énfasis en su emancipación para un cambio social. La enfermería sudamericana puede beneficiarse de esta propuesta, sin embargo debe considerar sus limitaciones y desafíos de su uso en la investigación de enfermería. By merging poststructuralist and feminist theories a new paradigmatic methodology for using in nursing researcher is proposed. From this merger, poststructuralist feminist theory has developed participatory methodologies in which women’s experiences are visible, encouraging emancipation for social change. South American Nursing can beneft from this proposition, however, some limitations and challenges must be considered in its use in nursing research.
Response of Productive and Morphovegetative Traits of Globe Artichoke (Cynara cardunculus var. scolymus) to Mass Selection and Estimation of their Heritability Respuesta de Rasgos Productivos y Morfovegetativos de Alcachofa (Cynara cardunculus var. scolymus) a Selección Masal y Estimación de su Heredabilidad
Eugenia Martin,Vanina Cravero,David Liberatti,Andrea Espósito
Chilean Journal of Agricultural Research , 2010,
Abstract: There have been few reports on genetic parameters or artificial selection for growth traits in globe artichoke (Cynara cardunculus var. scolymus), the study of the effect of one cycle of mass selection and realized heritability estimates would be valuable for planning breeding strategies in this species. A C0 segregating population was formed from the cross of two contrasting seed-grown cultivars, Imperial Star and Estrella del Sur FCA. Selected plants for productive traits were intercrossed to produce a C1 population. The C1 population along with the C0 population, both parents and the F1 were evaluated obtaining the response to selection and estimating realized heritability. Mass selection for increased yield and precocity was particularly successful, where for the first trait realized heritability reached 0.71 and 0.60 for the second one. For most traits, the observed values for realized heritability in the experiment (0.75, 0.61 and 0.52 for weight of the main head, marketable yield and length of the main head, respectively) indicate that a substantial part of the observed phenotypic variance is of additive nature. Therefore, in general, selection for these traits in seed-grown globe artichoke populations will be effective. Existe a nivel mundial poca información sobre parámetros genéticos o de selección artificial para caracteres relacionados a la producción en el cultivo de alcachofa, por lo que el estudio de los efectos de un ciclo de selección masal y estimaciones de la heredabilidad sería útil para la planificación de estrategias de mejoramiento en esta especie. Las estimaciones de la importancia relativa de la variación genética y de la heredabilidad son fundamentales en la toma de decisiones en todas las etapas de los programas de mejoramiento. Una población segregante (C0) se formó de la hibridación de dos cultivares contrastantes multiplicados por semillas ‘Imperial Star’ y‘Estrella del Sur FCA’. Se evaluaron caracteres productivos y las plantas seleccionadas se hibridaron para conformar el ciclo C1. Esta población, junto con el C0, los progenitores, y la F1 se evaluaron para la obtención de la respuesta a la selección y la estimación de heredabilidad. La selección masal para incrementar el rendimiento y la precocidad fue parcialmente exitosa obteniéndose para el primer carácter un valor de heredabilidad estimada de 0,71 y un valor de 0,60 para el segundo. Para la mayoría de las características los valores observados para la heredabilidad (0,75; 0,61y 0,52 para peso del capítulo principal, rendimiento de mercado y altura del capítulo princi
Uso de marcadores morfológicos, bioquímicos y moleculares SRAP para diferenciar variedades de Cynara cardunculus L. (Asteraceae)
Espósito,María Andrea; Martin,Eugenia; Cravero,Vanina P; Cointry,Enrique L;
Revista de la Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo , 2011,
Abstract: in the cynara cardunculus l. primary complex we can find a globe artichoke: cynara cardunculus var. scolymus and other botanical varieties such as c. cardunculus var. altilis (cultivated cardoon) and c. cardunculus var. sylvestris (wild artichoke). traditionally, they varieties were grouped according to morphological and biochemical traits and more recently, based on molecular markers. the aim of the present paper was to compare the use of morphological, biochemical and molecular markers to distinguish botanical varieties of cynara cardunculus. three accessions of var. scolymus, two accessions of var. altilis and two accessions of var. sylvestris were used. different morphological variables, electrophoresis seed protein patterns by sds-page and srap markers were evaluated. the three kinds of markers grouped all materials in two clusters: one of them included the globe artichoke and the other the cardoons. sds-page is a valid technique for botanical varieties identification but the morphological and molecular data were more effective at discriminating botanical varieties and accessions within the scolymus group.
Response of Productive and Morphovegetative Traits of Globe Artichoke (Cynara cardunculus var. scolymus) to Mass Selection and Estimation of their Heritability
Martin,Eugenia; Cravero,Vanina; Liberatti,David; Espósito,Andrea; López Anido,Fernando; Cointry,Enrique;
Chilean journal of agricultural research , 2010, DOI: 10.4067/S0718-58392010000200002
Abstract: there have been few reports on genetic parameters or artificial selection for growth traits in globe artichoke (cynara cardunculus var. scolymus), the study of the effect of one cycle of mass selection and realized heritability estimates would be valuable for planning breeding strategies in this species. a c0 segregating population was formed from the cross of two contrasting seed-grown cultivars, imperial star and estrella del sur fca. selected plants for productive traits were intercrossed to produce a c1 population. the c1 population along with the c0 population, both parents and the f1 were evaluated obtaining the response to selection and estimating realized heritability. mass selection for increased yield and precocity was particularly successful, where for the first trait realized heritability reached 0.71 and 0.60 for the second one. for most traits, the observed values for realized heritability in the experiment (0.75, 0.61 and 0.52 for weight of the main head, marketable yield and length of the main head, respectively) indicate that a substantial part of the observed phenotypic variance is of additive nature. therefore, in general, selection for these traits in seed-grown globe artichoke populations will be effective.
Identification of markers linked to agronomic traits in globe artichoke
Eugenia Martin,Vanina Cravero,Andrea Espósito,Fernando López Anido
Australian Journal of Crop Science , 2008,
Abstract: Color head and precocity of production are two important agronomic traits in globe artichoke which determine the acceptance of the product in the market. 118 F2 plants were analyzed for two agronomic traits, color head and precocity of production. Bulked Segregant Analysis (BSA) and Sequence-related amplified polymorphism (SRAP) were used to detect molecular markers linked to the traits. Ten plants with the same trait were used to constitute the bulks, which were screened with seven SRAP pair primers. We detected one band/marker that may be linked to the green color head and one band/marker that may be associated with precocity in head production. The results obtained show that the BSA and SRAP analyses are useful to identify molecular markers associated with agronomic traits. The identified markers will potentially be used in molecular marker aided-selection (MAS) for breeding programs in globe artichoke
Multidimensional Design Paradigms for Data Warehouses: A Systematic Mapping Study  [PDF]
Ania Cravero, Samuel Sepúlveda
Journal of Software Engineering and Applications (JSEA) , 2014, DOI: 10.4236/jsea.2014.71006
Abstract:

Data warehouses (DW) must integrate information from the different areas and sources of an organization in order to extract knowledge relevant to decision-making. The DW development is not an easy task, which is why various design approaches have been put forward. These approaches can be classified in three different paradigms according to the origin of the information requirements: supply-driven, demand-driven, and hybrids of these. This article compares the methodologies for the multidimensional design of DW through a systematic mapping as research methodology. The study is presented for each paradigm, the main characteristics of the methodologies, their notations and problem areas exhibited in each one of them. The results indicate that there is no follow-up to the complete process of implementing a DW in either an academic or industrial environment; however, there is also no evidence that the attempt is made to address the design and development of a DW by applying and comparing different methodologies existing in the field.

ALGUNOS ASPECTOS ESENCIALES DEL PENSAMIENTO DE JEAN WATSON Y SU TEORíA DE CUIDADOS TRANSPERSONALES
Urra M,Eugenia; Jana A,Alejandra; García V,Marcela;
Ciencia y enfermería , 2011, DOI: 10.4067/S0717-95532011000300002
Abstract: a display of jean watson's thoughts, based on the understanding of her philosophy and theory of transpersonal care is undertaken. on one hand, the analysis is centered in her philosophical assumptions which are based on existentialism and levinas theories. on the other hand, the analysis is centered on the ten factors of caring defined on her theory. beside that this article described the benefits of applying her theory in different contextual nursing situations. the authors make reference to the meaning and transcendence of each one of her ten factors for nursing, and the improvement opportunities coming from their implementation on the way that nurses provide care today as well as on their own personal leaves.
Diatomeas potencialmente nocivas del Golfo San Matías (Argentina)
Sunesen,Inés; Bárcena,Alejandra; Sar,Eugenia A;
Revista de biología marina y oceanografía , 2009, DOI: 10.4067/S0718-19572009000100007
Abstract: abstract diatoms responsible for harmful events in other geographic areas, found in the coastal waters of the san matías gulf (río negro province, argentina), were studied. materials were collected in two sampling stations related to natural banks and cultures of bivalves: las grutas and piedras coloradas. two potentially toxigenic taxa and 18 harmful non toxigenic taxa were found. despite that some of these taxa were occasionally abundant in the plankton of the area, none of them caused evident discolorations or detectable harmful effects during the study period.
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