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Copyright of Revista Interamericana de Investigación, Educación y Pedagogía - RIIEP is the property of Universidad Santo Tomas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study investigates the temporal dynamics of autochthonous dog breed recognition in the Balearic Islands, revealing a complex interplay of relationships across various stages. The analysis, depicted through a heatmap and correlation matrix, highlights the significance of early breed recognition by showing strong negative correlations with subsequent stages, shaping the trajectory for standardized breed preservation. Associations evolve as central players, exhibiting positive correlations in their temporal dynamics and contributing significantly to the sustainability of the island ecosystem. Notably, the study identifies nuanced connections between the temporal sequence of association development and the subsequent achievements of autonomic and national official recognitions. The findings provide valuable insights into the intricate patterns governing breed preservation, offering a comprehensive roadmap for informed conservation strategies and contributing to broader efforts in biodiversity conservation and cultural heritage stewardship unique to the Balearic Islands. [ABSTRACT FROM AUTHOR]

This study seeks to evaluate the relationships within the studbook registries of endangered autochthonous canine breeds in the Balearic Islands. Employing Pearson's Product Moment Correlations and operating within the legal framework of Royal Decree 558/2001 aligned with EU standards for recognizing purebred dog breeders in Spain, patterns within the studbook were unveiled. Notably, the female Fundational Registry census displayed robust positive correlations, highlighting the significance of a solid foundational basis, particularly in females, for effective breed consolidation. Conversely, negative correlations with auxiliary registries suggest a diminished role when the foundational basis is strong. The analysis further reveals robust intra-gender relationships and strong correlations with total censuses, indicating systematic registration approaches. Surprisingly, females in the Birth Auxiliary Registry lack correlations, suggesting potential independence and underscoring the pivotal role of female censuses in breed consolidation. In conclusion, this correlation analysis offers valuable insights into studbook dynamics, emphasizing the importance of a robust foundational basis, especially concerning female censuses, in the successful evolution of endangered dog populations into standardized breeds. These findings provide guidance for studbook management and warrant additional exploration into specific registry categories, with a cautionary note that while correlation identifies associations, discerning causation necessitates nuanced interpretation and domain-specific knowledge. [ABSTRACT FROM AUTHOR]

In this study, we assessed the relationship between tubers quality of three varieties (INIAP Libertad, INIAP Josefina and Diacol Capiro) of Ecuador highland early of potato and two formulations of edaphic fertilizer sources. Leaf chlorophyll content (LCC) was evaluated with Chlorophyll Meter SPAD-502Plus. Samples were taken at different heights in three phenological stages: vegetative grow, flowering-formation of tubers and ripening-thickening. Several responses were found in the three potato varieties. Correlation between SPAD value and weight of tubers (W), dry matter (DM), specific gravity (SG) and good chips (GC) were significantly correlated with potato leaves chlorophyll content. For Libertad variety and formulation (KNO3 + NH4H2PO4 + KCl), at vegetative grow in upper strata of plant, the optimal mathematic function for SPAD value andW, DM, SG and GC were: y = 0.262x9.460 (R2 = 0.9938), y = 42.948 e0;01x (R2 = 0.5240), y = 100;13x0;05 (R2 = 0.3277) and y = 100;36x1;41 (R2 = 0.8681); at plant flowering-formation of tuber stage, the optimal function models were: y = 10;57 x1;06 (R2 = 0.8553), y = 28.789 e0;0024 (R2 = 0.9103), y = 100;07 x0;02 (R2 = 0.7543) and y = 0.468x + 64.361 (R2 = 0.9935); at plant ripening-thickening, the optimal function models were: y = 0.664 e0;02x (R2 = 0.7924), y = 29.370 e0;003x (R2 = 0.9572), y = 100;07 x0;02 (R2 = 0.8247) and y = 0.576x + 62.675 (R2 = 0.9690), respectively. Our results showed that the use of SPAD-520PLUS proved to be a rapid method for the determination of LCC, being an effective tool for estimating potato tuber quality. [ABSTRACT FROM AUTHOR]

El presente artículo se realizó para analizar y cuantificar la relación entre las ramas de la economía colombiana y el impacto energético en el desarrollo del PIB en Colombia. Los datos históricos de las actividades financieras del país, el análisis de correlación y una discusión de resultados se utilizaron como metodología; Los objetivos se basaban en analizar el Producto Interno Bruto de Colombia y cada una de las categorías económicas o ramas de la economía colombiana para analizar el impacto de esta variable en el crecimiento de cada una de estas. El actual trabajo integra un enfoque mixto, desde el análisis cualitativo se realiza un análisis fundamental del comportamiento del Producto Interno Bruto (PIB) de Colombia y; desde el enfoque cuantitativo, se busca realizar un análisis correlacional la data del PIB vs el crecimiento de cada una de las ramas de la economía colombiana, para medir el impacto. De igual manera, el estudio presenta un alcance exploratorio y correlacional debido a que inicialmente se realizó la consulta de fuentes bibliográficas, se busca explorar el comportamiento del Producto Interno Bruto (PIB) de Colombia y su análisis fundamental. La metodología implementada considera un total de cuatro fases: (i) Análisis del crecimiento económico de Colombia; (ii) Panorama económico por ramas de actividades; (iii) Análisis de correlación del Sector Minero Energético en cada Rama de la economía e; (iv) Influencia del sector de energía en el PIB del país. Los grupos que comprenden actividades del sector energético que afectan el crecimiento económico fueron las ramas de suministro de petróleo y minería, manufactura y energía. Los resultados mostraron que en Colombia, la actividad comercial es la categoría más interrelacionada con el índice del PIB, tiene una relación del 94.90%; seguido por los servicios de transporte que mostraron una correlación del 94.25%. En cuanto al sector energético, la rama de Manufactura tuvo una relación de 84.10% con el PIB; Las actividades de suministro de energía mostraron el 74,23% de la relación, y el petróleo y la minería tuvieron una conexión menor del 25,14% con el PIB. Se pudo comprobar que el Producto Interno Bruto (PIB) esta correlacionado e impacta en las categorías económicas (ramas) al modelamiento del consumo energético nacional y sumado a la integración de variables independientes que describan su comportamiento se genera una herramienta de análisis del sector. Así mismo se pudo evidenciar el índice de correlación del crecimiento económico de Colombia y el tipo de impacto en cada una de las ramas. Las conclusiones corroboraron la hipótesis de que la correlación permite identificar tendencias del comportamiento del consumo energético del país. Queda como trabajo futuro proyectar el impacto de las variables diferentes al factor macroeconómico e instrumentos de validación de escenarios.

La presente investigación tiene como finalidad determinar los indicadores del confort que tienen relación con el desempeño académico de los estudiantes universitarios. Para lograr esto, se inició aplicando el cuestionario desarrollado por Gento y Vivas (2003) que constaba de 94 preguntas cerradas bajo una escala Likert compuesta por 5 niveles de satisfacción con respecto a las condiciones de confort de la Institución, distribuidas en 6 dimensiones, a través de un muestreo aleatorio estratificado, aplicado a una muestra conformada por 336 estudiantes de la Facultad de Ingeniería de la Universidad del Zulia, por lo que se puede decir que el presente estudio es de tipo correlacional, transeccional y de campo. Luego de aplicar el cuestionario, se procedió a realizar los análisis estadísticos respectivos, iniciando por las pruebas de normalidad para determinar las pruebas específicas a aplicar para estudiar las correlaciones planteadas por dimensión y para cada uno de los indicadores. Posteriormente se realizaron los análisis respectivos, encontrando finalmente 17 correlaciones significativas de las 94 preguntas de las que constaba el cuestionario, y con éste resultado se pudo construir un diagrama de Ishikawa que describe el comportamiento y las relaciones de las variables en estudio para los estudiantes de la facultad de Ingeniería de La Universidad del Zulia al momento de la medición, notándose que las dimensiones que evidenciaron un mayor número de correlaciones significativas eran las del Proceso de Enseñanza – Aprendizaje y Relaciones Personales.

Within the framework of knowledge management, it is necessary to develop intellectual capital, for which variables such as communities of practice must be considered, given their importance for the development of organizations. The research results presented in this article are intended to establish the state of development of communities of practice related to intellectual capital in SMEs in the tourism sector of the Department of Caldas, Colombia, for which it was used a descriptive and correlational analysis with an evaluation model adapted to specific communities, it was possible to evaluate 87% of the SMEs. The main findings show the consolidation of communities of practice of SMEs operators in the tourism sector in the department of Caldas, and highlight the leadership and teamwork of these. [ABSTRACT FROM AUTHOR]

La presente investigación cuantitativa analiza la relación existente entre las variables de conciencia ambiental y empatía en docentes en formación. La muestra está compuesta por 150 estudiantes de último año de tres carreras de pedagogía, quienes cursaban sus titulaciones en dos universidades chilenas. Los participantes cumplimentaron dos instrumentos de autoinforme, cuyos resultados revelaron que no existe una relación significativa entre ambas variables, aunque —por sí solas— evidencian que los maestros en formación poseen niveles intermedios y altos de empatía y conciencia ambiental. Estos hallazgos permiten orientar futuras investigaciones respecto de ambos temas, considerando el papel que tiene la formación inicial docente en la educación sobre el cuidado del medio ambiente y la empatía hacia él.

The objective of this article is to design a proposal to strengthen research training in the Business Administration program of the Universidad de la Amazonia, Colombia. The research is descriptive and propositional. A sample of 389 students was determined by simple random sampling. The study used correlation analysis and the elaboration of a SWOT (Weaknesses, Opportunities, Strengths, Threats) matrix. The results indicate that for 70% of the students, research is a complex process and mentally unrelated to their professional training. It concludes with: the proposal of awareness-raising activities aimed at students, the identification of course units that include applied research, the promotion of participation in research groups and hotbeds, an increase in academic credits in the curriculum as support for the degree option and the restructuring of the research lines of the program. [ABSTRACT FROM AUTHOR]

Copyright of Revista Telos is the property of Revista Telos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

El objetivo de este artículo es diseñar una propuesta para fortalecer la formación investigativa en el programa Administración de Empresas de la Universidad de la Amazonia, Colombia. La investigación es de tipo descriptivo y propositivo. Se determinó una muestra de 389 estudiantes por muestreo aleatorio simple. El estudio empleó análisis de correlación y la elaboración de una matriz DOFA (Debilidades, Oportunidades, Fortalezas, Amenazas). Los resultados indican que para el 70% de los estudiantes, la investigación es un proceso complejo y mentalmente desvinculado de su formación profesional. Se concluye con: la propuesta de actividades de sensibilización orientadas a los estudiantes, la identificación de unidades de curso que incluyan investigación aplicada, el fomento hacia la participación en grupos y semilleros de investigación, aumento de créditos académicos en la malla curricular como apoyo a la opción de grado y la restructuración de las líneas de investigación del programa.

Antecedentes: Aedes spp. y la dinámica del virus del dengue está altamente influenciada por factores ambientales. Una relación detallada entre el clima y la enfermedad en los períodos inter e intra-epidémicos podrían beneficiar la vigilancia del dengue para optimizar la preparación y las políticas adecuadas de control de vectores. Métodos: se analizaron los informes de casos de dengue y las variables climáticas en Santo Domingo, República Dominicana, para determinar la correlación del período 2012-2018 y los diferentes tiempos de retraso. Se llevó a cabo un análisis de regresión de dichas variables para comprender mejor las relaciones entre las tasas de incidencia del dengue y los cambios climáticos. Resultados: durante los brotes epidémicos, la temperatura (r = 0.73, p

To effectively prevent heavy metal pollution in water sources in tourist attractions, clarify the degree of control of heavy metal pollution sources, and improve the accuracy of tracing results, a GIS-based remote sensing method of heavy metal pollution in tourist attractions is proposed. Using GIS spatial analysis method, the DEM elevation data monitored by remote sensing is obtained, the watershed geographic information is compiled, and the GPS obtains the longitude and latitude coordinates to locate the source of heavy metal pollution. The plug-in application framework is designed, and the watershed geographic information and plug-in application framework are integrated to build the pollution tracing platform. According to the mixing direction of pollutants after entering the water source, the migration and diffusion coordinate system of heavy metal pollution in the water source is established. The spatial-temporal distribution function model of heavy metal pollutants in water sources is constructed through the migration, transformation, and concentration of heavy metal pollutants in water sources. The tracing results of heavy metal pollution in water sources of scenic spots are obtained. The results showed that the order of variation coefficient of heavy metal pollution elements was Cr > Cd > Cu > Ni > Zn > Pb. The spatial distribution of heavy metal pollution elements was extremely uneven. There was a certain positive correlation between Ni and Cr, and the correlation coefficient of Cu and Zn was 0.78. The positive correlation was very significant, and the homology was very strong. Moreover, the identification result of the proposed method is very close to the real value, which can accurately trace the source of heavy metal pollution in the water source of tourist attractions, with small tracing error and high accuracy of tracing result evaluation. [ABSTRACT FROM AUTHOR]

The organization of combined voluntary goal directed movements of hands has remained a serious scientific problem with a pronounced applicable nature. Insufficiency of a procedural framework and clear quantitative and qualitative criteria causes gaps and difficulties in professional selection, the effectiveness diagnosis of work-out session in sports and rehabilitation within remedial treatment. The aim of the investigation is to study the adjustment and co-adjustment of the effector apparatus elements, which are the basis of bimanual coordination, in the groups of male and female trial subjects. In the following study, based on informed consent in accordance with the ethics committee requirements, 75 subjects (39 men and 36 women) at the age of 18-20 took part. F-wave and M-response parameters registration was carried out by means of NMA-4-01 "NEUROMIAN" neuromyoanalyzer (Taganrog, Russia) according to the standard method. It has been established that the nerve centers responsible for the work of homonymous muscles in the right and left forearms, innervating synergists and antagonists, are to a certain extent in the initial adjustment and co-adjustment according to the level of activity, which determines not only the moment of the excitement onset, but also the speed of its irradiation. The revealed manifestations of adjustment and co-adjustment have pronounced sex differences. Proceeding from the fact that female trial subjects have a lower level of bimanual movements if compared with men, it can be assumed that the revealed features of correlational relationships determine, to a certain extent, coordination abilities of men and women. [ABSTRACT FROM AUTHOR]

El cambio climático tiene importantes implicaciones de salud pública, las cuales se incrementan en la malaria. En zonas donde nunca antes se había identificado las diferentes especies de Plasmodium se convirtió en realidad. Por consiguiente, la comprensión de la relación entre esta enfermedad y el clima se ha convertido en una prioridad de salud global. En este estudio extrajimos los casos reportados de malaria y los informes climáticos de bases de datos de información pública entre 2012 y 2018. Mediante análisis de regresión confrontamos los casos de malaria semanales con promedios climáticos de semana de retraso. Durante los períodos inter-epidémicos la humedad relativa (b = .1101, p

Copyright of Revista Espacios is the property of Talleres de Impresos Oma and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study analyses factors that influence teachers' decision to use or rule out flipped learning as a methodology; specifically, the scope of the subject, the educational stage, the type of institution and the level of continuing education. The research is based on a nonexperimental and quantitative descriptive and correlational design. A validated, ad hoc questionnaire was used as a measuring instrument in a sample of 642 teachers from various educational institutions in Spain. The results reflect that the use of flipped learning as a didactic methodology is very rare, mainly due to teachers' lack of knowledge about how the methodology works and the scarcity of techno-pedagogical resources where they teach. Flipped learning is primarily used for teaching topics related to language and mathematics in secondary and higher education, particularly in private and state-funded private schools with respect to public ones. Likewise, specific training in flipped learning was found to be a determining factor for the applicability of the methodology, regardless of the level of training in other active methodologies. [ABSTRACT FROM AUTHOR]

El presente estudio tuvo como objetivo examinar las propiedades psicométricas del Vividness of Visual Imagery Questionnaire (VVIQ) en una muestra de 614 universitarios españoles entre 21 y 39 años. El análisis factorial exploratorio (AFE) arrojó un modelo del VVIQ compuesto por 12 ítems estructurados en 4 factores —Imágenes Espaciales en Movimiento (IEM), Imágenes Familiares (IIFF), Recuerdo de Objetos Detallados (ROD), Capacidad Creativa de Imágenes (CCI)—, que explicaron respectivamente el 12.99 %, 13.53 %, 12.97 % y 12.70 % del total de la varianza. Este modelo fue corroborado a través de un análisis factorial confirmatorio (AFC), con el cual se obtuvieron adecuados índices de ajuste de los datos e índices de fiabilidad aceptables para el total de la escala (α = .82) y los cuatro factores (α = .72-.82). La escala mostró correlaciones positivas y significativas entre las preocupaciones perfeccionistas y los factores IEM y ROD. Se aporta una escala de medida actualizada para medir la vivacidad de imágenes mentales, así como un nuevo conocimiento científico en relación con el perfeccionismo.

El objetivo de este estudio se centra en analizar los factores que inciden en el profesorado para utilizar o descartar el aprendizaje invertido (en inglés, flipped learning) como metodología, tales como el ámbito de la asignatura, la etapa educativa, el tipo de centro y el nivel de formación continua. La investigación se basa en un diseño no experimental y cuantitativo de tipo descriptivo y correlacional. Se ha empleado un cuestionario ad hoc validado como instrumento de medida sobre una muestra de 642 enseñantes de diversos centros docentes de España. Los resultados reflejan que el empleo del aprendizaje invertido como metodología didáctica es muy infrecuente, siendo las causas principales para ello el desconocimiento por parte del profesorado sobre cómo funciona la metodología y la falta de recursos técnico-pedagógicos existente en el centro donde imparte docencia. Su uso mayoritario se focaliza en las materias relacionadas con los ámbitos de la filología y las matemáticas, dentro de la educación secundaria y superior, y con especial protagonismo de los centros privados y concertados respecto a los públicos. Asimismo, la formación específica en aprendizaje invertido resulta ser un factor determinante para la aplicabilidad de dicho procedimiento, independientemente del nivel de conocimiento de otras metodologías activas.

Copyright of Revista Espacios is the property of Talleres de Impresos Oma and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Avances en PsicologÍa Latinoamericana is the property of Colegio Mayor de Nuestra Senora del Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Nowadays, study of the conditions of families with mentally retarded children, especially their mothers, is of great interest to researchers. Therefore, the present study aimed to investigate the Effectiveness of Brain Exercise Training and Intensive Short-Term Dynamic Psychotherapy (ISDTP) on Emotional Self-Awareness of Mothers with Children with Mentally Retarded Children in Ahvaz in the spring 2020. The statistical population of the study included all mothers of mentally retarded children in Ahvaz who were selected by available sampling method of 45 mothers and were divided into three groups of 15 (two experimental groups and one control group) by lot. The research design was experimental with pre-test and post-test with control group. The instruments used were Grant et al. (2002) Emotional Self-Awareness Questionnaire, which were completed in two stages before the intervention and at the end of the intervention . The results of the study using multivariate analysis of covariance and Bephroni post hoc test showed that the groups of brain exercise training and short-term dynamic psychotherapy in comparison with the control group are effective in increasing the emotional self-awareness of mothers of mentally retarded children. The results also showed that both methods are effective in increasing emotional self-awareness. [ABSTRACT FROM AUTHOR]

The article presents the analysis of social and psychological component indicators of academic employees in the structure of higher education institution (university) image. As a part of comprehensive study we determined the internal structure of a higher education institution image according the results of factor and correlation analysis which includes five factors: professional, social-psychological, motivational, emotional-volitional and individual-psychological. This approach gave a possibility to characterize the peculiarities of each factor, published in scientific articles, influence on the image of the university. Some of the factors have been stydied previously and we could find scientific publications on these issues. At the same time the results of the social and psychological component research have not been published yet but have a significant scientific interest since they characterize a sample of 285 representatives of the rectorate, dean's offices, heads of departments and academic staff of the university. We found out that each category of respondents has its own peculiarities regarding the level of satisfaction with quality of life, subjective satisfaction or not satisfaction with social or personal recognition, material and social security, level of personal authority. We were able to find the dominant type of university employees’ attitude towards people in interaction: authoritarianism, egoism, aggression, suspicion, subordination, dependence, friendliness and altruism. The results of this study can be used for individual diagnosis and appropriate correction of each category of the respondents to have a positive impact on the image of the university. [ABSTRACT FROM AUTHOR]

Morphological variation of reproductive structures of the Solanaceae in the Yanachaga- Chemillén National Park (Peru). This study analyzes the presence and variation of floral features in species of the Solanaceae family in three localities of the Yanachaga-Chemillén National Park (Perú) during the rainy season from Feb--Mar of 2009. The morphometric data collection of the flowers and fruits of 280 individuals, belonging to 47 species, collected in the towns of Paujil (400 m), Tunqui (1900 m) and San Daniel (2400 m) was analyzed. The quantitative data was analyzed using Spearman's simple correlation, while for the qualitative data, a descriptive statistical analysis was performed. The analysis of the quantitative data indicates that there are statistically significant variation in the size of certain flower structures, which have a moderate negative correlation with their altitudinal distribution, these variables are the length of the corolla tube (p = 0.000358) and the style (p = 0.00060). Within the qualitative data it was observed that the color of the flowers presents a variation according to the altitude, where the white color has a greater predominance in the Tunqui and San Daniel localities located at 1900 m and 2400 m respectively, while the yellow flowers are more common in Paujil at 450 m. Additionally, it was found that the greatest diversity of species and the greatest variability of the reproductive characters analyzed were registered at 2400 m of altitude. Variations and predominance of reproductive characteristics could be related to the different types of pollinators for species in this family. [ABSTRACT FROM AUTHOR]

Copyright of Revista Electrónica Interuniversitaria De Formación del Profesorado is the property of Asociacion Universitaria de Formacion del Profesorado (AUFOP) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Espacios is the property of Talleres de Impresos Oma and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Learning computer programming is a skill hard to achieve in college students. One of the current approaches to dealing with this difficulty is to introduce Visual Programming Languages such as Scratch in the initial courses. The goal is to soften the learning curve and focus the student on acquiring algorithmic and computational thinking. However, there is evidence that the motivation of more prepared students may be affected since they usually expect more professional environments to work with. One recent alternative to solve this dilemma is CARAMBA, a Web platform that involves an exercise recommendation system along with Scratch. In this way, students can build their learning paths according to their interests and level of knowledge. Although the success of CARAMBA is remarkable, some questions related to its impact still remain to be answered. In this sense, the present investigation aims to analyze the correlation existing between two important variables: the level of utilization of CARAMBA and the improvement rate on a computer programming course. The results obtained from an Ecuadorian university show a positive, significant correlation between these two variables, which is an additional evidence of the benefits of CARAMBA. [ABSTRACT FROM AUTHOR]

The present study aimed to evaluate structure and digestibility of dry-cured ham in relation to different cooking temperatures (70, 100 and 120°C), and further assess the relationship between structure and digestibility. The secondary structure analysis showed that the content of α-helix decreased from 55.03% to 20.61%, accompanied by an increase in the content of β-sheet and random coil from the raw to 120°C. The digestibility showed that proteolysis rate of myofibrillar proteins by pepsin and trypsin & α-chymotrypsin (digestive enzymes) significantly increased to 0.62 and 0.51 at 100°C, compared with the raw. Odour and taste were susceptible to cooking temperature, and 100°C enhanced odour and taste attributes of ham. The changes of protein conformation were closely related to the digestibility. Correlation analysis further demonstrated that activities of digestive enzymes for proteins were negatively correlated with α-helical and β-sheet, and positively correlated with β-turn and random coil. [ABSTRACT FROM AUTHOR]

Learning computer programming is a skill hard to achieve in college students. One of the current approaches to dealing with this difficulty is to introduce Visual Programming Languages such as Scratch in the initial courses. The goal is to soften the learning curve and focus the student on acquiring algorithmic and computational thinking. However, there is evidence that the motivation of more prepared students may be affected since they usually expect more professional environments to work with. One recent alternative to solve this dilemma is CARAMBA, a Web platform that involves an exercise recommendation system along with Scratch. In this way, students can build their learning paths according to their interests and level of knowledge. Although the success of CARAMBA is remarkable, some questions related to its impact still remain to be answered. In this sense, the present investigation aims to analyze the correlation existing between two important variables: the level of utilization of CARAMBA and the improvement rate on a computer programming course. The results obtained from an Ecuadorian university show a positive, significant correlation between these two variables, which is an additional evidence of the benefits of CARAMBA. [ABSTRACT FROM AUTHOR]

Se analizó el rendimiento de grano, aptitud galletitera y algunos factores físicos y físico-quí- micos que afectan la calidad de la harina integral en 22 genotipos de triticales. Los parámetros PSI, IRAAy SRC de los cuatro solventes (agua, carbonato de sodio, láctico y sacarosa) resultaron superiores a los valores publicados para harinas blancas. Los factores analizados no estuvieron asociados al factor galletita y los dos primeros componentes principales no pudieron explicar la variabilidad total del ensayo. Si bien el cultivar Cananea resultó el más apto en calidad galletitera y en productividad, se detectaron dos líneas experimentales de triticales potencialmente aptas para la elaboración de este tipo de producto.

The statistical multivariate analysis of Likert response scales, given their widespread use, is a controversial issue in the scientific community, mainly from the specification of the problem of measurement. This work aims to study various conditions of these ordinal scales affect the calculation of the product-moment and tetrachoric-polychoric correlation coefficients. For this purpose, a simulation study was applied in which 90 databases with 10 items each were generated. In the estimation of the databases, the following variables were controlled: number of response categories, symmetrical or asymmetric distributions of data, sample size and level of relationship between items. Thus, 90 matrices (10x10) were obtained which included the difference between the product-moment and tetrachoric-polychoric correlations. The graphical and variance analysis show how the product-moment correlation coefficient significantly underestimates the relationship between variables mainly when the number of response categories of the ordinal scale is small and the relationship between the variables is large. On the other hand, the statistical estimation of both coefficients is very similar when the starting relationship between pairs of variables is small and/or when the number of response options of the variables is greater than 5. The study concludes by making a recommendation to the applied researcher on the most appropriate correlation coefficient depending on the type of data available. Finally, the results are discussed from the previous studies, which reach some similar conclusions. [ABSTRACT FROM AUTHOR]

This study contains an empirical investigation about the existence or otherwise of a relationship between the students number in schools and the educational performance in mathematics. Do schools with larger numbers of students achieve better results? To answer this question, we used data of the SARESP, grouped according to the regions of the state of São Paulo, to perform a correlation analysis between the number of students per school, who participated in the evaluation, and the average in mathematics achieved. The correlation coefficients were calculated and interpreted considering information referring to the years 2008 and 2013. From the scatter plots and correlation coefficients, computed using software R, associated to the number of student that participated of the evaluation in 2008 and 2013 and performance in mathematics, it was possible identify that are regions of the State in which schools with higher quantities of students performed better. On the other hand, in other regions the correlation coefficient explained a weak relation for such variable. Thus, the same assertion cannot be maintained for all regions in the two years considered in this research. The presence of regional characteristics and other variables associated with the number of students per school and educational performance can play a significant role in the investigation by all association between both variables. [ABSTRACT FROM AUTHOR]

La eutrofización es una de las problemáticas ambientales más importantes de lagos y embalses. El embalse Río Tercero (Argentina) se encuentra afectado por diversas actividades antrópicas que impactan negativamente sobre el recurso. A la hora de generar un programa de monitoreo de los sistemas acuáticos, una de las consideraciones más importante es poder definir las variables más significativas. El análisis multivariado se presenta como una herramienta alternativa. El objetivo de este trabajo fue determinar la calidad del agua y estado trófico del embalse Río Tercero, con el fin de generar bases para una adecuada gestión de los recursos hídricos. Se realizaron campañas de muestreos durante los años 2003 a 2006 donde se midieron parámetros de calidad del agua. Se determino el estado trófico del reservorio. Se realizó un análisis multivariado, generando una matriz de correlación y un análisis de componentes principales (ACP). El embalse experimentó un deterioro en su calidad, pasando desde un estado de mesotrófico a eutrófico. Se demostró que existe correlación positiva entre la clorofila- a y las variables fósforo total (r = 0.83), oxigeno disuelto (r = 0.51) y temperatura (r = 0.43). El ACP explicó el 65,6% de la variabilidad total de los datos. El análisis multivariado estableció que las variables más significativas para explicar la variabilidad en el reservorio fueron clorofila-a, fósforo total y temperatura, lo que demuestra que los florecimientos algales deberían ocurrir en las estaciones primavera-verano. Los resultados obtenidos permiten generar un programa preliminar de monitoreo y gestión extrapolable a otros recursos acuáticos.Eutrophication is one of the most important environmental problems in lakes and reservoirs. Río Tercero reservoir (Argentina) is affected by various human activities that impact negatively on the system. When generating a monitoring program of aquatic systems, one of the most important considerations is to define the most significant variables. Multivariate analysis was presented as an alternative tool. The aim of this study was to determine water quality and trophic status in Río Tercero reservoir, in order to generate an adequate basis for management of water resources. Sampling campaigns were conducted during the years 2003 to 2006. Water quality parameters were measured. We determined the trophic status of the reservoir. Multivariate analysis was performed, generating a correlation matrix and a principal component analysis (PCA). The reservoir experienced a deterioration in water quality, from mesotrophic to eutrophic state. It was shown that there is positive correlation between chlorophyll-a and total phosphorus (r = 0.83), dissolved oxygen (r = 0.51) and temperature (r = 0.43). The PCA explained the 65.6% of the total variability of the data. Multivariate analysis established that the most significant variables were chlorophyll-a, total phosphorus and temperature, demonstrating that algal blooms should occur in spring and summer seasons. The results obtained allow to generate a preliminary program of monitoring and management applied to other aquatic resources.

El objetivo de este trabajo fue analizar las principales variables asociadas a la resistencia poscosecha del tomate Cherry (tomate tipo cereza (Solanum lycopersicum var. cerasiforme), y con base en ello, orientar la selección de materiales para programas de mejoramiento. Se utilizó un diseño experimental en bloques completos aleatorizados, con tres repeticiones y 10 frutos por parcela. Para el análisis de los datos se adoptó un diagrama causal ilustrativo, considerando la resistencia poscosecha como variable básica, y las siguientes variables explicativas: peso medio de los frutos, diámetro de la cicatriz del pedúnculo, grosor del mesocarpio, contenido de sólidos solubles y pH. Se realizaron análisis de varianza, correlaciones genotípicas y multicolinealidad; y desdoblamiento de las correlaciones genotípicas por medio de análisis de ruta (portugués: "análise de trilha"). Considerando separadamente los caracteres estudiados, el grosor del mesocarpio y el peso medio de los frutos son los que contribuyen en una mayor medida a explicar las variaciones en la resistencia poscosecha del tomate Cherry. Es posible obtener ganancias en resistencia poscosecha por medio de selección indirecta vía grosor del mesocarpio. Esta ganancia será mayor si entre los frutos de mayor grosor del mesocarpio se seleccionan los que presentan menor peso.

Introduction: Executive functions define the set of cognitive abilities to anticipate and set goals, scheming and the ability to carry them out efficiently. Objective: To approach the knowledge of the relationship between executive functions and the grapheme-phoneme decoding. Methods: In this empirical study, has conducted study that a nonexperimental methodology or ex post facto adheres. The methodology used in this study is correlational, as it is studied and analyzed the relation between executive functions and processes of graphemephoneme decoding. Results: Thirty elementary school students have taken part in this study. They are 6-7 years old. Two instruments were applied to assess the executive functions and the process of decoding graphemephoneme. The analysis of correlation show that there is an association between man and women in some of the executive functions, like the control of time, planning, flexibility and the beginning of the task, related to the codification grapheme-phoneme processes. Conclusion: Executive functions are important in the development of the child from early age, which impact in later life and at the level of acquisition of reading, basic for the access to the curriculum. [ABSTRACT FROM AUTHOR]