278 research outputs found

    Analysis of procedures for the creation of words in the early stages of mother tongue acquisition. Action and research experience with students of Early Childhood Education Degree

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    Presentamos una experiencia de investigación–acción realizada con el alumnado que cursa el título de Grado en Educación Infantil a los que, aprovechando el periodo de practicum en los centros escolares donde se realiza una observación del lenguaje del alumnado de tres, cuatro y cinco años, les hemos propuesto la recogida de todas aquellas palabras que no se ajustan a la norma del léxico de la lengua castellana. Posteriormente realizaron un análisis y categorización de las palabras construidas y una reflexión que les permitirá en el futuro entender a su alumnado y aplicar lo aprendido en esta experiencia cuando se conviertan en responsables de una clase. Finalmente y tal como se expresa en los objetivos con la realización del estudio de las producciones lingüísticas se pone de manifiesto la relación de la teoría y la práctica y con ello adquieren las competencias expresadas en el título relacionadas con saber y saber hacer.We are presenting an action and research experience with students of Early Chilhood Education Degree. Taking advantage of the practicum period in schools— when language of children aged 3, 4 and 5 years old are observed, we have proposed to the future teachers to collect all the words that do not conform the standard vocabulary of the Spanish language. Subsequently, we proposed them to carry out an analysis and categorization of the constructed words and then a reflection that will allow them in the future to understand their students and put into practice what they have learnt in this experience. Finally, as it is indicated in the aims, along with the performance of this study of the linguistic produccions, it is manifested the correlation between theory and practice, acquiring the abilities expressed in the title, related to skills and know-how (savoir faire) and ability to learn (savoir apprendre).peerReviewe

    Effects of laying month and length of the storage period on hatchability of ostrich (Struthio camelus) eggs

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    The effects of laying month and length of the storage period on hatchability of ostrich (Struthio camelus) eggs were studied. A total of 1,740 hatching eggs gathered between April and May from a farm located in the province of Córdoba, Southern Spain, were stored at 17-18.5C and 30% RH for periods varying from 1 to 28 days, and subsequently incubated at 36.4C and 22% RH. It was found that egg weight increased as the laying season progressed, with the eggs laid in April showing lower weights than the eggs laid from May to August (P<0.05). There was also a seasonal effect on hatchability (P<0.001), that peaked in May. It was found an effect of the length of storage period on hatchability (P<0.001). Storage of ostrich eggs up to 12 d did not affect subsequent hatchability under profitable conditions, although a significant decline in hatchability occurred when the eggs were stored for longer periods. This finding has practical implications for successful hatchery management because allows prolonged storage of eggs, while being gathered sufficient-sized batches to be incubated and shipment of long shelf-life hatching eggs at ostrich farms, while maintaining optimum hatchability until further incubation. © 2014 Friends Science Publisher

    Quantitative analysis of parent-of-origin effect in reproductive and morphological selection criteria in the Pura Raza Española horse

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    It is generally assumed that parents make a genetically equal contribution to their offspring, but this assumption might not always hold. This is because the expression of a gene can be blocked by methylation during gametogenesis, and the degree of methylation can depend on the origin of the parental gene (imprinting) or by preferential management associated with genetic merit. The first consequences of this for quantitative genetics is that the mean phenotypes of reciprocal heterozygotes need no longer be the same, as would be expected according to Mendelian heritage. We analysed three mare reproductive traits (reproductive efficiency, age at first foaling and foaling number) and three morphological traits (height at withers, thoracic circumference, and scapula‐ischial length) in the Pura Raza Española (PRE) horse population, which possesses a deep and reliable pedigree, making it a perfect breed for analysing the quantitative effect of parent‐of‐origin. The number of animals analysed ranged from 44,038 to 144,191, all of them with both parents known. The model comparison between a model without parent‐of‐origin effects and three different models with parent‐of‐origin effects revealed that both maternal and paternal gametic effects influence all the analysed traits. The maternal gametic effect had a higher influence on most traits, accounting for between 3% and 11% of the total phenotypic variance, while the paternal gametic effect accounted for a higher proportion of variance in one trait, age at first foaling (4%). As expected, the Pearson's correlations between additive breeding values of models that consider parent‐of‐origin and that do not consider parent‐of‐origin were very high; however, the percentage of coincident animals slightly decreases when comparing animals with the highest estimated breeding values. Ultimately, this work demonstrates that parent‐of‐origin effects exist in horse gene transmission from a quantitative point of view. Additionally, including an estimate of the parent‐of‐origin effect within the PRE horse breeding program could be a great tool for a better parent's selection and that could be of interest for breeders, as this value will determine whether the animals acquire genetic categories and are much more highly valued

    ANALÍTICAS EN LA CALIDAD DE LA GESTIÓN DEL POSTGRADO

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    The graduate as a higher education training goes through moments of interest in its study for its academic rigor and for its management. The overcrowding of the graduate in recent decades has led to inefficient management of this level of training. The objective of this research is to measure how the use of analytics in the graduate management contributes to their management quality. The quality of graduate management was assessed in the retention and titling rates as indicators of results of this level of training. A qualitative and quantitative mixed research was developed using scientific methods. Analytics were used in the management graduate of an Ecuadorian institution and the result was an increase in retention and titling rates as part of student satisfaction.El postgrado como formación de educación superior atraviesa momentos de interés en su estudio no solo por el rigor académico que amerita sino por su gestión. La masificación del postgrado en las últimas décadas ha originado una ineficiente gestión de este nivel de formación. El objetivo de esta investigación es medir cómo la utilización de analíticas en la dirección y manejo del postgrado contribuye en su calidad de gestión. Se evaluó la calidad de la gestión del postgrado en las tasas de retención y titulación como indicadores de resultado en este nivel de formación. Se desarrolló una investigación mixta cuali y cuantitativa utilizando métodos científicos. Se utilizó las analíticas en la gestión del postgrado de una institución ecuatoriana y el resultado fue el incremento de las tasas de retención y titulación como parte de la satisfacción de los estudiantes

    Genetic Structure Analysis of the Pura Raza Español Horse Population through Partial Inbreeding Coefficient Estimation

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    The aim of this work was to analyze genetic parameters such as the inbreeding coe cient (F), relatedness coe cient (AR) and partial inbreeding coe cient (Fij) of the whole PRE population, and the ancestors which account for 50% of the total genetic variability of the current population, from genealogical information. The average F of the whole PRE population (328,706 animals) has decreased from 8.45% to 7.51% in the least 20 years. The Fij was estimated for the whole PRE population, resulting in a database of 58,772,533 records containing one record for each Fij that each animal receives from a certain common ancestor (CA). A total of 10,244 CAs contributed to the Fij with an average of 5370 descendants, with each descendant having an average of 170 CAs. Over the generations, the number of CAs has increased, while the proportion of Fij by each one has decreased. In addition, the contributions of the more influential ancestors have changed. The increased census, the limited use of artificial insemination and our increased knowledge about inbreeding depression and the animals’ breeding values allow breeders to select horses more for their functionality and conformation than for their pedigree reputation, which is the cause of all these changes
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