Global Disk Oscillation Modes in Cataclysmic Variables and Other Newtonian Accretors

Diskoseismology, the theoretical study of small adiabatic hydrodynamical global perturbations of geometrically thin, optically thick accretion disks around black holes (and other compact objects), is a potentially powerful probe of the gravitational field. For instance, the frequencies of the normal mode oscillations can be used to determine the elusive angular momentum parameter of the black hole. The general formalism developed by diskoseismologists for relativistic systems can be readily applied to the Newtonian case of cataclysmic variables (CVs). Some of these systems (e.g., the dwarf nova SS Cygni) show rapid oscillations in the UV with periods of tens of seconds and high coherence. In this paper, we assess the possibility that these dwarf nova oscillations (DNOs) are diskoseismic modes. Besides its importance in investigating the physical origin of DNOs, the present work could help us to answer the following question. To what extent are the similarities in the oscillation phenomenology of CVs and X-ray binaries (XRBs) indicative of a common physical mechanism?Comment: 1 figur

Removing redundancy for attribute implications in data with grades

Reasoning with if-then rules –in particular, with those taking from of implications between conjunctions of attributes– is crucial in many disciplines ranging from theoretical computer science to applications. One of the most important problems regarding the rules is to remove redundancies in order to obtain equivalent implicational sets with lower size.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

On the Perturbations of Viscous Rotating Newtonian Fluids

The perturbations of weakly-viscous, barotropic, non-self-gravitating, Newtonian rotating fluids are analyzed via a single partial differential equation. The results are then used to find an expression for the viscosity-induced normal-mode complex eigenfrequency shift, with respect to the case of adiabatic perturbations. However, the effects of viscosity are assumed to have been incorporated in the unperturbed (equilibrium) model. This paper is an extension of the normal-mode formalism developed by Ipser & Lindblom for adiabatic pulsations of purely-rotating perfect fluids. The formulas derived are readily applicable to the perturbations of thin and thick accretion disks. We provide explicit expressions for thin disks, employing results from previous relativistic analyses of adiabatic normal modes of oscillation. In this case, we find that viscosity causes the fundamental p- and g- modes to grow while the fundamental c-mode could have either sign of the damping rate.Comment: Accepted for publication by The Astrophysical Journal. 11 pages, no figure

Thermorresponsive magnetic nanoparticles as target drug delivery for cancer treatment

In this research, temperature sensitive microgels with magnetic core for controlled release of 5-fluoruracil was synthesized. Magnetic nanoparticles (Fe3O4) were prepared by coprecipitation method and the surface was functionalized by acrylic acid. Polymer poly(N-isopropylacrylamide) (PNIPAM) were grown by free radical polymerization in presence of cross-liker and initiator. The size of the polymer was manipulated by changing the mole percent of the crosslinker and evaluated for their morphology (TEM), particle size, zeta potential, loading efficiency, drug content and drug release. Furthermore, microgels were tagged with FITC, a fluorochrome which could be applied for cell imaging. Cytotoxicity studies revealed that the microgels were not toxic. These complex nanoparticles (Fe3O4/pNIPAM/FITC/5-Fu) appear to be a great promise to be used in controlled drug delivery and tumor targeting.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Synthesis of New Analogues of the Bengamides to encapsulate in magnetic nanoparticles

The development and identification of new antitumoral has become a research area of great interest and maximum priority due to secondary effects of current antitumoral and the appearance of tumours resistant to these agents. Marine sponges corresponding to the Jaspidae family have proved to be a prolific source of bioactive natural products. Among these, the Bengamides have showed an important biological profile, including antitumor, antibiotic and anthelmintic properties. Due to the interest of theses natural products, we describe a study directed towards the total synthesis of this class of compounds. Then we encapsulate Bengamides in temperature sensitive microgels with a magnetic core. Magnetic nanoparticles (Fe3O 4) were prepared by coprecipitation method and the surface was functionalized by acrylic acid. Polymer poly(N-isopropylacrylamide) (PNIPAM) were grown by free radical polymerization in presence of cross-liker and initiator.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

La huella hidrológica de la Agricultura española

La huella hidrológica de una persona, colectivo o país se define como el total de agua usada para producir los bienes y servicios consumidos por esa persona, colectivo o país. El principal objetivo de este estudio es realizar una estimación de la huella hidrológica de la agricultura en España. El trabajo distingue entre el consumo de agua azul y de agua verde con el fin de obtener unas cifras que reflejen la importancia de cada uso en la producción agrícola. Los resultados muestran que la huella hidrológica de España se sitúa en unos 1.150 m3 de agua per cápita y año, siendo el volumen anual total cercano a los 48.000 hm3. Más de la mitad de los recursos hídricos usados para satisfacer la demanda de los bienes y servicios consumidos en España procede de otros países. La agricultura es responsable de algo más del 80% de la huella hidrológica, siendo los cereales y los cultivos industriales los grupos de cultivos con mayor peso. El aumento de la huella hidrológica de la agricultura en los años analizados se debe en buena parte a la expansión del sector ganadero español. A pesar de que en España el 80% de la superficie agraria útil está en régimen de secano, el consumo de agua azul en la agricultura es mayor que el de agua verde

Propuesta de intervención en Educación Física para trabajar el bloque de contenido de salud en la última década

Observar los resultados de los programas de intervención en Educación Física orientada a la Salud con el objetivo de ver su influencia en los adolescentes y el poder que ejercen sobre ellos para seguir con los buenos hábitos adquiridos de forma responsable en el tiempo. Se revisaron artículos originales sólo en español publicados en las bases de datos de Csic-Issoc, Scopus, Sportdiscus, Eric, Pubmed, Dialnet y en revistas digitales tales como Apunts, Investigacion en la Escuela, Revista Profesorado, Cuaderno de Pedagogia, Habilidad Motriz, motricidad, Nutricion Hospitalaria y Revista Española de Pedagogia desde enero de 2001 a diciembre de 2011. Se analizaron un total de 10 artículos que cumplieron con los criterios de inclusión para esta revisión. Todos cuasi experimentales y llevados a cabo en España.Observe the results of the intervention programs in Physical Education oriented to Health in order to see their influence on adolescents and the power they exercise over them to continue with the good habits acquired in a responsible manner over time. We reviewed original articles only in Spanish published in the databases of Csic-Issoc, Scopus, Sportdiscus, Eric, Pubmed, Dialnet and in digital journals such as Apunts, Research at School, Faculty Journal, Pedagogy Notebook, Motor Skill, motor, Hospital Nutrition and Spanish Journal of Pedagogy from January 2001 to December 2011. A total of 10 articles that met the inclusion criteria for this review were analyzed. All quasi-experimental and carried out in Spain

Effectiveness of a muticomponent workout program integrated in an evidence based multimodal program in hyperfrail elderly patients: POWERAGING randomized clinical trial protocol

BackgroundShort-term and mid-term comparison of the efficacy of a multimodal program that incorporates a therapeutic workout program, medication review, diet adjustment and health education, in comparison to the standard medical practice in the improvement of the neuromuscular and physiological condition. Furthermore, it is intended to analyse the maintenance of these effects in a long-term follow-up (12months) from the onset of the intervention.MethodsA randomized clinical trial of elderly frail patients drawn from the Clinical Management Unit Tiro de Pichon, Health District of Malaga, will be included in the study (after meeting the inclusion / exclusion criteria) will be randomized in two groups: a control group that will undergo an intervention consistent of medication review + diet adjustment + health education (regular workout recommendations within a complete advice on healthy lifestyles) and an experimental group whose intervention will consist of a multimodal treatment: therapeutic workout program+ medication review+ diet adjustment + health education. The sociodemographic, clinical and tracing variables will be reflected at the beginning of the study. In addition, the follow-up variables will be gathered at the second and sixth months after the beginning of the treatment and at the third and sixth months after the treatment (follow-up). The follow-up variables that will be measured are: body mass index, general health condition, fatigue, frailty, motor control, attention- concentration- memory, motor memory, spatial orientation, grip strength, balance (static, semi-dynamic), gait speed and metabolomics.A descriptive analysis of the sociodemographic variables of the participants will be conducted. One-Factor ANOVA will be used for the Within-Subject analysis and as for the Between-Subject analysis, the outcome variables between both the groups in each moment of the data collection will be compared.DiscussionA multimodal program that incorporates a therapeutic workout program, medication review, diet adjustment and health education may be effective treatment to reduce the functional decline in elderly. The results of the study will provide information on the possible strengths and benefits in multimodal program in elderly.Trial registrationClinicalTrials.gov NCT02772952 registered May 201

A broadband polarization splitter directional coupler based on tilted subwavelengh grating metamaterials

Tilted subwavelength gratings (SWG) allows anisotropy tailorable metamaterials with applications in polarization management. Based on this concept, here we experimentally demonstrate a broadband directional-couplerbased polarization beam splitter with sub-decibel insertion loss in a 100 nm bandwidth.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech