Autoestima como variable psicosocial predictora de la actividad física en personas mayores

Suplemento de artículos seleccionados con revisión del Congreso Andaluz de Psicología de la Actividad Física y el Deporte (13 : 2011 : Sevilla). Editores : José Carlos Caracuel ; Rocío Bohórquez.The purpose of this study was to investigate the relationship between self-esteem expressed by people over 65 years of age and taking part in physical activity. Self-concept and self-esteem are psychologically fundamental components of quality of life in adulthood and well-being. Selfesteem has been proposed as an area of intervention to improve the quality of life in the senior population. The sample was composed of more than 184 people, 92 of whom took part in physical activity on a regular basis and another 92, who developed sedentary lifestyles. The results of the Rosenberg Self-Esteem Questionnaire applied to the sample showed different levels of self-esteem between seniors who are physically active and those who are not, with self-esteem being significantly higher in active seniors. Studies with similar objectives demonstrate and support the verification of the hypothesis that establishes a positive relationship between self-esteem and participation in physical activity

Preliminary results of a Exploratory Fishing targeting deep-water species off Uruguay

A Pilot Action of Exploratory Fishing was carried out in the second half of 2001 by two Spanish bottom-longline commercial fishing vessels within the Uruguayan Economic Exclusive Zone (EEZ) targeting deep-water species. Trap fishing gears were also utilised as another alternative fishing gears.The main objective of the exploratory survey was to improve the knowledge of the distribution and the population structure of the species target of the survey: Groupers (Epinephelus spp.), Kingclip (Genypterus blacodes), Brazilian sandperch (Pinguipes spp.) and other accompanying species. Some preliminary results of this exploratory survey are shown in this current work. Fishery and biological data were collected by scientific observers on board of the two vessels which took part in the exploratory fishing. The collected data were date, time, position, depth, SST, SBT, weather condition, catches, discards, length distributions, sex, maturity, stomach fullness… among others. Length distributions, sex ratio and maturity stage of the most abundant species in the catch are also shown. Catch, effort and CPUE by area, gear and depth strata were analysed. Regarding bottom longline gear, the most abundant species were Dogfish shark (Squalus sp), Wreckfish (Polyprion americanus), Tope shark (Galeorhinus galeus) and Argentine hake (Merluccius hubbsi) in waters shallower than 200 m depth. Regarding Traps fishing gears, the most abundant species were crabs (Family Geryonidae) and Argentine conger (Conger orbignyanus)

Roman mining works and gold ore deposits in the San Pedro de Olleros sector (El Bierzo, León)

[Abstract] The gold mining in the Bierzo Region, NW Spain had great importance, not only in the well known Las Médulas site, but also in the north sector of El Bierzo Basin, (San Pedro de Olleros Valle de Finolledo). This work have recognised the roman exploitation sites, differentiating the fertile facies within the tertiary sequences. Although no data about ages have still found, an approach to the tectonosedimentary evolutive history is carried out, taking into account the geometry and characteristics of the deposits[Abstract] The gold mining in the Bierzo Region, NW Spain had great importance, not only in the well known Las Médulas site, but also in the north sector of El Bierzo Basin, (San Pedro de Olleros -Valle de Finolledo). This work have recognised the roman exploitation sites, differentiating the fertile facies within the tertiary sequences. Although no data about ages have still found, an approach to the tectonosedimentary evolutive history is carried out, taking into account the geometry and characteristics of the deposit

Trends in the pattern of discarding in the hake (Merluccius hubbsi and Merluccius australis) fishery in the SW Atlantic.

This paper presents results from the EC Study Project 99/016 “Data collection for stock assessment of two hakes (Merluccius hubbsi and M. australis) in international and Falkland waters of the SW Atlantic”. Historical fishery and biological data series available from IEO (1988 onwards) were used to describe and quantify patterns and spatio-temporal changes in catches and discards in the hake fishery. Data were collected by scientific observers on board Spanish fishing vessels operating in the study area. Data collected on fishing activity included effort, catches and discards of target and non-target species on a haul-by-haul basis. Biological information (size, sex, maturity, etc) on target species was recorded on a daily basis, while biological data on non-target species was recorded periodically. The “discards ratio” was calculated by each haul, defined as the total weight of fish discarded divided by the total catch weight. The most important by-catch species are hoki or whiptailed hake (Macruronus magellanicus), red cod (Salilota australis), southern blue whiting (Micromesistius australis), Patagonian toothfish (Dissostichus eleginoides) and kingclip (Genypterus blacodes). Discards included both target and non-target species. The most commonly discarded species were Patagonotothen spp. (almost 100% of the catch is discarded), whiptailed hake (Macruronus magellanicus) (25% discarded), southern blue whiting (12%) and red cod (6%). These percentages vary with area, year and fishing season. The four target species (Merluccius hubbsi, Merluccius australis, Illex argentinus and Loligo gahi) have discard ratios below 5%. In recent years discard ratios for all species except Patagonotothen spp. have fallen below 15%

Monolayer arrangement of fatty hydroxystearic acids on graphite: Influence of hydroxyl groups

Previous studies have indicated that long-chain linear carboxylic acids form commensurate packed crystalline monolayers on graphite even at temperatures above their melting point. This study examines the effect on the monolayer formation and structure of adding one or more secondary hydroxyl, functional groups to the stearic acid skeleton (namely, 12-hydroxystearic and 9,10-dihydroxystearic acid). Moreover, a comparative study of the monolayer formation on recompressed and monocrystalline graphite has been performed through X-ray diffraction (XRD) and Scanning Tunneling Microscopy (STM), respectively. The Differential Scanning Calorimetry (DSC) and XRD data were used to confirm the formation of solid monolayers and XRD data have provided a detailed structural analysis of the monolayers in good correspondence with obtained STM images. DSC and XRD have demonstrated that, in stearic acid and 12-hydroxystearic acid adsorbed onto graphite, the monolayer melted at a higher temperature than the bulk form of the carboxylic acid. However, no difference was observed between the melting point of the monolayer and the bulk form for 9,10-dihydroxystearic acid adsorbed onto graphite. STM results indicated that all acids on the surface have a rectangular p2 monolayer structure, whose lattice parameters were uniaxially commensurate on the a-axis. This structure does not correlate with the initial structure of the pure compounds after dissolving, but it is conditioned to favor a) hydrogen bond formation between the carboxylic groups and b) formation of hydrogen bonds between secondary hydroxyl groups, if spatially permissible. Therefore, the presence of hydroxyl functional groups affects the secondary structure and behavior of stearic acid in the monolayer.Dirección General de Investigación Científica y Técnica CTQ 2010-14874, CTQ 2011-2429

Trust Context, Learning and Innovation: A Biomimetic Metaphor

El presente estudio lleva a cabo un trabajo exploratorio sobre las interacciones entre los elementos que intervienen en los procesos de innovación de las organizaciones. Inspirado de la perspectiva de la filosofía natural, el estudio consiste en un ejercicio de comparación de los procesos de aprendizaje e innovación con los cultivos celulares para la diferenciación celular en el campo de la biomedicina. Así, se hace necesario establecer ambientes organizacionales que contengan los nutrientes adecuados para que las variables antecedentes del proceso innovador (como son la actitud de colaboración y la orientación al aprendizaje) desencadenen dicho proceso. Los cultivos para la diferenciación celular son la referencia biomimética. A partir de ellos, se han producido importantes innovaciones en biomedicina, como la medicina regenerativa. Se hace hincapié en la necesidad de desarrollar nuevos sistemas inmunológicos en las organizaciones para contrarrestar el efecto negativo sobre el cultivo de la innovación de determinadas prácticas de dirección no deseadas. Elementos perversos que con frecuencia se dan en la práctica, como el mobbing y, lo que es peor, el bossing, y otros agentes patógenos como la falta de comunicación, el antagonismo innecesario, los clanes, los reinos de Taifas, la falta de objetivos unificadores y la descoordinación, se evidencian como objetos de tratamiento preferente desde la perspectiva de un sistema de dirección natural moderno. A partir de un estudio realizado en 150 empresas de uso intensivo del conocimiento, se demuestra el modelo propuesto, en el que un clima de confianza se revela como el medio más adecuado para producir la innovación, a partir de la interacción entre las actitudes colaborativas y la orientación al aprendizajeThis paper performs an exploratory study where we analyze interactions among several firm’s elements impacting on organizational innovation. Inspired on natural philosophy view, our study illustrates learning and innovation processes as the cell cultivations used in the cell differentiation processes at the biomedicine field. Hence, it is necessary to create organizational contexts in which adequate nutrients exist such as the collaborative attitude and learning orientation which trigger the innovation process. The cultivations for cell differentiation are, right now, the biomimetic reference. Important innovations have been produced from them both in the biomedicine field and the regenerative medicine field. We focus on the need to develop new immunologic systems for organizations, counteracting the negative effect of several management practices on the innovation cultivation. Perverse regular elements in practice, such as mobbing and (the worse) bossing and other pathogenic agents such as poor communication, unnecessary antagonism, clans and local kingdoms are special treatment elements under a modern natural management system. We study 150 knowledge intensive firms, supporting our model hypotheses. Thus, trust context is the more adequate way to create innovation, through interactions between collaborative attitudes and learning orientation

Maternal Fructose Intake Induces Insulin Resistance and Oxidative Stress in Male, but Not Female, Offspring

Objective. Fructose intake from added sugars correlates with the epidemic rise in metabolic syndrome and cardiovascular diseases. However, consumption of beverages containing fructose is allowed during gestation. Recently, we found that an intake of fructose (10% wt/vol) throughout gestation produces an impaired fetal leptin signalling. Therefore, we have investigated whether maternal fructose intake produces subsequent changes in their progeny. Methods. Blood samples from fed and 24 h fasted female and male 90-day-old rats born from fructose-fed, glucose-fed, or control mothers were used. Results. After fasting, HOMA-IR and ISI (estimates of insulin sensitivity) were worse in male descendents from fructose-fed mothers in comparison to the other two groups, and these findings were also accompanied by a higher leptinemia. Interestingly, plasma AOPP and uricemia (oxidative stress markers) were augmented in male rats from fructose-fed mothers compared to the animals from control or glucose-fed mothers. In contrast, female rats did not show any differences in leptinemia between the three groups. Further, insulin sensitivity was significantly improved in fasted female rats from carbohydrate-fed mothers. In addition, plasma AOPP levels tended to be diminished in female rats from carbohydrate-fed mothers. Conclusion. Maternal fructose intake induces insulin resistance, hyperleptinemia, and plasma oxidative stress in male, but not female, progeny

Primeros resultados del proyecto para la evaluación preliminar de la merluza en determinadas zonas de la Plataforma Patagónica

Entre el 1 de enero de 2000 y el 31 de diciembre de 2001 se desarrolló el proyecto financiado por la DG PESCA de la UE titulado “Recogida de datos para la evaluación preliminar de los stocks de merluza en aguas de la Plataforma Patagónica”, en el que entre otros participantes estuvieron el Instituto Español de Oceanografía (IEO) y la Asociación Nacional de Armadores de Buques Congeladores de Pesca de Merluza (ANAMER). En este artículo se pretende exponer brevemente algunos de los principales resultados del proyectoDG PESCA CEPreprint0,000