Programación fetal, estrés toxico intrauterino y consecuencias en el producto: Fetal programmig, intrauterine toxic stress and consequences on the product

Dos décadas atrás Baker dio el concepto de Programación Fetal (PF), donde asociaba el ambiente prenatal y el desarrollo del feto. En consecuencia, la PF representaría “la inducción de las respuestas fetales debido al entorno uterino” que condicionará cambios funcionales y estructurales en el propio feto, con repercusión a corto y largo plazo. En consecuencia, si el ambiente prenatal es adverso en el desarrollo, tendremos posiblemente patologías en la vida extra uterina. Las evidencias señalan, que procesos implicados en el desarrollo de diversas funciones de los sistemas orgánicos complejos, se iniciarían mucho antes del nacimiento y conformarían problemáticas de salud a futuro

Balance and Postural Control Assess in Elite Ice Skaters

Análisis de curvas de fuerza muscular en patinadores de élite contando con el apoyo de sistemas de soporte a la decisión y técnicas de descubrimiento de conocimiento

The use of biostimulants in high-density olive growing: Quality and production

[EN] Due to the increase of high-density holdings, especially of olive trees, the nutritional requirements of the plants are higher per unit area, which implies that a greater contribution of fertilizers to the soil is needed. Opting for fertilizers of inorganic origin will produce an increase in the pollution of the soil. In the face of this possible soil contamination, our aim is to analyze the effect of biostimulants as an alternative to chemical fertilizers, to steadily produce and maintain high quality standards during the life of the crop. Our objective is using more environmentally friendly products in order to satisfy one of the most important demands from both consumers and the authorities. In this study, we carried out five different treatments in addition to a control treatment with a supply of NPK, from inorganic products, which are used to control fertilization with a solution obtained from seaweed extracts. These treatments were applied in two crop cycles for two of the most important varieties in the current olive tree growing scenario: Arbequina and Koroneiki. This study was developed in the farm Pozohondo, which is located in a crop zone by the Palancia river (Castellón, Valencia, Spain), in the southeast of the Iberian Peninsula, where the olive trees were established in a high-density system with a planting framework of 4 x 1.5 m. We ensured an exhaustive control of the nutritional needs of the holding by using a fertigation system. We could notice differences in the productions of each applied treatment, avoiding any possible biases through the additional control of 100 randomly selected olives from each of the samples. There is an improvement in the set of physical characteristics of the olives with the treatment that provides amino acids and extra potassium based on amni acids. We analyzed the quality of the olive oil obtained from the production of each treatment by measuring the fatty acids, tocopherols and polyphenols contents. We also carried out an organoleptic tasting analysis following the rules of the International Olive Committee (IOC). We observed an improvement with regard to the rest of treatments in the pomological parameters of the olives when applying the potassium and amino acid biostimulant, while the quality of the oils was not affected by the type of fertilization applied in each treatment.This work was funded by Project AICO/2017/047. Development of methods of quantification of riparian vegetation biomass for the management of channels of the Comunitat Valenciana. Dirección General de Universidades. Generalitat Valenciana (Spain).Hernández-Hernández, GJ.; Salazar Hernández, DM.; Martínez-Tomé, J.; López-Cortés, I. (2019). The use of biostimulants in high-density olive growing: Quality and production. Asian Journal of Advances in Agricultural Research. 10(4):1-11. https://doi.org/10.9734/AJAAR/2019/v10i430034S11110

One-dimensional relativistic dissipative system with constant force and its quantization

For a relativistic particle under a constant force and a linear velocity dissipation force, a constant of motion is found. Problems are shown for getting the Hamiltoninan of this system. Thus, the quantization of this system is carried out through the constant of motion and using the quantization of the velocity variable. The dissipative relativistic quantum bouncer is outlined within this quantization approach.Comment: 11 pages, no figure

Educació física especial: actitud i formació dels docents a primària

Aquest article analitza la situació actual del professorat de l'Educació Física de Primària a la ciutat de Barcelona davant l'atenció a la diversitat. La investigació se centra en l'anàlisi de l'actitud i el desenvolupament professional com a elements vitals i interelacionats entre si per a l'èxit de l'atenció a la diversitat. És un estudi socioeducatiu sobre la situació (actitud i formació) del professat respecte als alumnes amb necessitats educatives especials. La recopilació de les dades es realitza a partir de l'administració d'un qüestionari entre una mostra de professorat d'Educació Física. Els autors constaten en l'estudi la positiva i generalitzada resposta del professorat d'Educació Física cap a la integració, les limitacions pedagògiques del professorat, les dificultats del professorat per dur a terme adequacions curriculars individuals, la formació per atendre la diversitat sembla inadequada i sembla que hauria de centrar-se en aspectes més metodològics i en el coneixement de les diverses necessitats educatives especials

Anomalous Roughening in Experiments of Interfaces in Hele-Shaw Flows with Strong Quenched Disorder

We report experimental evidences of anomalous kinetic roughening in the stable displacement of an oil-air interface in a Hele-Shaw cell with strong quenched disorder. The disorder consists on a random modulation of the gap spacing transverse to the growth direction (tracks). We have performed experiments varying average interface velocity and gap spacing, and measured the scaling exponents. We have obtained beta=0.50, beta*=0.25, alpha=1.0, alpha_l=0.5, and z=2. When there is no fluid injection, the interface is driven solely by capillary forces, and a higher value of beta around beta=0.65 is measured. The presence of multiscaling and the particular morphology of the interfaces, characterized by high slopes that follow a L\'evy distribution, confirms the existence of anomalous scaling. From a detailed study of the motion of the oil--air interface we show that the anomaly is a consequence of different local velocities over tracks plus the coupling in the motion between neighboring tracks. The anomaly disappears at high interface velocities, weak capillary forces, or when the disorder is not sufficiently persistent in the growth direction. We have also observed the absence of scaling when the disorder is very strong or when a regular modulation of the gap spacing is introduced.Comment: 14 pages, 17 figure