3,426 research outputs found
Thin film instability with thermal noise
We study the effects of stochastic thermal fluctuations on the instability of
the free surface of a flat liquid film upon a solid substrate. These
fluctuations are represented as a standard Brownian motion that can be added to
the deterministic equation for the film thickness within the lubrication
approximation. Here, we consider that while the noise term is white in time, it
is coloured in space. This allows for the introduction of a finite correlation
length in the description of the randomized intermolecular interaction.
Together with the expected spatial periodicity of the flow, we find a
dimensionless parameter, , that accounts for the relative importance of
the spatial correlation. We perform here the linear stability analysis (LSA) of
the film under the influence of both terms, and find the corresponding power
spectra for the amplitudes of the normal modes of the instability. We compare
this theoretical result with the numerical simulations of the complete
non-linear problem, and find a good agreement for early times. For late times,
we find that the stochastic LSA predictions on the dominant wavelength remains
basically valid. We also use the theoretical spectra to fit experimental data
from a nanometric melted copper film, and find the corresponding times of the
evolution as well as the values of the parameter,
El delito de detenciones ilegales practicadas por funcionarios públicos y autoridades = Crime of illegal detentions practiced by public officials and authorities
La libertad personal es uno de los bienes más preciados del individuo, un derecho fundamental que será inherente a la dignidad de todo ser humano. Las detenciones suponen la privación de libertad de una persona, siendo una de las formas más limitativas a este derecho.
El Código Penal español contiene dos preceptos, los artículos 167 y 530, que regulan situaciones en las que autoridad o funcionario público privan a un particular del derecho a la libertad ambulatoria consagrado en el art. 17 de la Constitución Española.
La existencia de estos dos preceptos va a dar lugar a multitud de controversias que la doctrina junto a la jurisprudencia ha ido solventando con el paso de los años. Fruto de ello surge este trabajo, el cual se va a dedicar a resolver y analizar los problemas generados a la hora de aplicar estos preceptos, junto al estudio de la protección que el derecho internacional ha venido dando a este bien jurídico
Intervención en un caso de TEL desde el uso del metalenguaje
En diversas ocasiones, y por factores de distinta índole, el lenguaje y la capacidad de comunicación que presentan los niños se encuentra limitada. Es el Trastorno Específico del Lenguaje (TEL), uno de esos condicionantes, una patología del lenguaje muy heterogénea y con multitud de dificultades lingüísticas asociadas. Tomando conciencia de la necesidad que supone atender los trastornos del lenguaje para el desarrollo personal y social de alumnado, en el presente TFG se plantea una intervención en un caso de TEL desde el uso del Metalenguaje, lenguaje que se emplea para describir y hablar de la propia lengua, y cuya implantación en la intervención supone grandes beneficios para la mejora del desarrollo lingüístico del alumno. Tras una fundamentación teórica previa, se diseña la propuesta de intervención mencionada, en la que se recogen todos aquellos aspectos y procesos necesarios para que su desarrollo sea óptimo, entre los que destacan la metodología y las actividades propuestas, elementos con un componente lúdico y activo.Sometimes, and due to different kinds of factors, the language and communication capacity that children present is limited. It is the Specific Language Disorder (SLI), that is one of those determining factors, a very heterogeneous language pathology and with a multitude of associated linguistic difficulties. Aware of the need to address language disorders for the personal and social development of students, in this final degree work an intervention is proposed in a case of SLI from the use of Metalanguage, a language used to describe and talk about the own language, and whose implementation in the intervention entails great benefits for the improvement of the student's linguistic development. After a previous theoretical foundation, the mentioned intervention proposal is designed, in which all those aspects and processes necessary for its optimal development are collected, among which the methodology and the proposed activities stand out, elements with a playful and active component.Departamento de PsicologíaGrado en Educación Primari
El cuento ilustrado como recurso para el desarrollo de la creatividad
En mi trabajo fin de grado presento una propuesta en la que trabajar la creatividad a partir de la elaboración de un cuento. Tomando como referencia las teorías de varios autores relevantes tanto en el tema de la creatividad como en el del cuento así como en el tema del dibujo presento una propuesta para realizar en un aula de 3 años. Partiendo de la premisa de que todo ser humano posee una creatividad innata, pretendo comprobar como brota la creatividad de los niños de primer nivel de educación infantil ofreciéndoles actividades lúdicas y motivadoras.In my work end of grade presented a proposal in which work the creativity from the
elaboration of a story. With reference to the theories of various relevant authors on the
subject of creativity, the story and the theme of the drawing, I present a proposal to
carry out in a classroom of 3 years. Starting from the premise that every human being
has an innate creativity, I intend to check how arises the creativity of children in first
level of education providing fun and motivating activitiesGrado en Educación Infanti
Functional disorders in non-culprit coronary arteries and their implications in patients with acute myocardial infarction
Approximately 30-50% of patients with ST-segment elevation acute myocardial infarction have multivessel disease. The physiology of the non-culprit artery (NCA) is complex and represents a challenge to physicians as, while these plaques are presumably stable, clinical data show that they frequently lead to major adverse cardiovascular events. In addition the presence of microvascular and endothelial dysfunction may have prognostic implications and interfere with current physiological indices for stenosis severity assessment. In this review we aim to summarize current methods to study the microcirculation, discuss the evidence available regarding the endothelium and the microvascular compartment of the NCA; the best strategies to perform a complete revascularization based on proven ischemia; real limitations associated to hyperemic stenosis indices; and the potential role of novel resting-indices in this specific acute context
The Tutorial Action Program as complement of the educational action in the European Higher Education Area, EHEA
El presente trabajo se inserta dentro del estudio de los cambios introducidos como
consecuencia del nuevo Espacio Europeo de Educación Superior (EEES). En concreto, se analiza
el papel del Programa de Acción Tutorial desde la perspectiva de profesores y alumnos. Para
ello, se ha tomado la experiencia del Programa profesor-tutor de la Escuela Universitaria de
Estudios Empresariales de la Universidad de Oviedo y se han estudiado las características de los
profesores participantes en dicho Programa, así como la valoración que han hecho los
estudiantes del mismo a través de una encuesta. Los resultados obtenidos revelan la necesidad
de introducir cambios para facilitar la transformación de la actual labor docente en un modelo
que incorpore las funciones formativas-educativas. Por último, se realizan una serie de
propuestas para que las tutorías académicas sean gratificantes para el profesor y explotadas al
máximo por los alumnos.This paper is inserted into the study of changes resulting from the new European Higher
Education Area (EHEA). In particular, it is focused on the role of the Tutorial Action Program from
the perspective of teachers and students. For the purposes of this work, the experience of the
Program lecturer - tutor of the Escuela de Estudios Empresariales of the University of Oviedo is
considered. The characteristics of the lecturers participating in this Program, as well as the
valuation that the students have done of it through a survey, are studied. The obtained results
reveal the need to introduce changes to facilitate the transformation of the current teaching in a
model that incorporates training and educational functions. Finally, we make some proposals for
academic tutoring to be rewarding for the teacher and fully exploited by the students
Effects of slowed gastrointestinal motility on levodopa pharmacokinetics
P. 67-72Autonomic disorders are often seen in Parkinson's disease, with disturbances of the gastrointestinal tract
occurring most frequently. These disorders, mainly a delay in gastric emptying and slowed gastrointestinal
motility, can modify the pharmacokinetics and effectiveness of drugs used to treat Parkinson's disease and
administered orally. In this study, we evaluated in a rabbit model the pharmacokinetics of levodopa
(administered with carbidopa) in the context of gastrointestinal motility slowed by the administration of an
anticholinergic drug. Levodopa+carbidopa (20:5 mg/kg) and the anticholinergic biperiden (100 μg/kg)
were orally administered to rabbits over one of two time periods (7 or 14 days) to verify the stabilization of
levodopa concentrations. The values of the area under the curve (AUC) and Cmax were higher on the final day
of treatment with an increase in AUC of 25% on day 7 and 33.4% on day 14; for Cmax, the increase was 15% on
day 7 and 12.8% on day 14. The values of AUC and Cmax were lower than those obtained when levodopa
was administered to rabbits with normal gastrointestinal motility. The values obtained for Cmin (baseline
sample obtained before administration) also increased with treatment duration (24% and 47.4% on days 7
and 14, respectively). These values were higher than those obtained in the absence of anticholinergic
administration. We conclude that, under our experimental conditions of slowed gastrointestinal motility,
levodopa absorption diminishes, and final concentrations and Cmin are higher than under conditions of
normal motility.S
Comparative Assessment of the Mineral Content of a Latin American Raw Sausage Made by Traditional or Non-Traditional Processes
Eligibility for and outcome of treatment of latent tuberculosis infection in a cohorte of HIV-infected people in Spain
Taxonomic composition and ecological characteristics of the endemic flora of the lower Duero Basin (Iberian Peninsula)
The taxonomical composition and an analysis of four ecological characteristics
of the 46 endemic species occurring in the lower Duero Basin (CW
Iberian Peninsula) have been made. A comparative analysis of the results
reveals that this endemic flora does not comply with the general patterns previously
observed in other floras. Predominant life forms are hemicryptophytes
(43%) and chamaephytes (22%). As far seed-dispersal is concerned, 54% of the
endemic species lack any noteworthy adaptative feature. 89% of the endemic
species are pollinated by animals (mostly by insects) and only 1 species is dioecious.
Following binary classification of the above characteristics have been
used to plot statistically significant associations.La composition taxonomique et une analyse de quatre caracteristiques
ecologiques des 46 especes endemiques rencontrees dans le bassin inferieur
du Duero (CW de Ia Peninsula lberique) ont ete realisees. Une analyse
comparative des resultats montre que cette !lore endemique ne correspond pas
aux schemas generaux observes precedemment dans d'autres flares. Les
formes biologiques predominantes son! les Mmicryptophytes (43%) et les chamephytes
(22%). En ce qui conceme le mode de dispersion des diaspores, 54%
des especes endemiques son! depourvues de tout aspect adaptatif particulier.
89% des especes endemiques son! pollinisees par des animaux (essentiellement
des insectes) et une seule espece est dioique. En se basant sur une classification
binaire, les caracteristiques precedentes ont eta utilisees pour
representer graphiquement les associations statistiquement significatives.We would like to thank Dr. Tyteca for the translation of the French texts. This research was
supported by a grant from Castilla y Leon Autonomous Government (SA 037/02)info:eu-repo/semantics/publishedVersio
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