Kinetic description of avalanching systems

Avalanching systems are treated analytically using the renormalization group (in the self-organized-criticality regime) or mean-field approximation, respectively. The latter describes the state in terms of the mean number of active and passive sites, without addressing the inhomogeneity in their distribution. This paper goes one step further by proposing a kinetic description of avalanching systems making use of the distribution function for clusters of active sites. We illustrate application of the kinetic formalism to a model proposed for the description of the avalanching processes in the reconnecting current sheet of the Earth magnetosphere.Comment: 9 page

El complejo karstico-yesifero subterráneo "Pedro Fernández" (Estremera, provincia de Madrid)

[Resumen] Se han analizado los factores originales de este morfosistema kárstico subterraneo, detallan do los procesos responsables de su génesis, así como la morfolmgía interior. Diferenciando los tipos de galerias y su evolución. Al mismo tiempo, se aportan determinadas consideraciones acerca de la sedimentación interior de la cavidad, su tipología e interpretación de su significado[Resumé] On a analysé les facteurs qui ont originé ce morphosysthéme karstique souterrain, en detallant le procesus responsable de leur genére, ainsi que leur morphilogie intérieure. En distinguant les types de galeries et leur évolution. Eu méme temps, on apporte certaines considerations données á propos de la sédimentation, sa typologie et interprétation de sa signification

Real-time diffuse optical tomography using reduced-order light propagation models based on a priori anatomical and functional information

This paper proposes a new fast 3D image reconstruction algorithm for Diffuse Optical Tomography using reduced order polynomial mappings from the space of optical tissue parameters into the space of flux measurements at the detector locations. The polynomial mappings are constructed through an iterative estimation process involving structure detection, parameter estimation and cross-validation using data generated by simulating a diffusion approximation of the radiative transfer equation incorporating a priori anatomical and functional information provided by MR scans and prior psychological evidence. Numerical simulation studies demonstrate that reconstructed images are remarkably similar in quality as those obtained using the standard approach, but obtained at a fraction of the time

Theoretical Reflection about Socio-Educatives Aspects of Techno-Scientific Leisure

En el presente texto se hace un análisis y evaluación de la sociología del ocio tecnocientífico. Se desarrolla una caracterización del ocio para, posteriormente, hacer un estudio socio-hermenéutica de su impacto a nivel socio-educativo.This text provides an analysis and assessment of sociology of techno-scientific leisure. It develops a characterization of leisure, and then it makes a socio-hermeneutical impact to socio-educative level

An Implementation of a Renesas H8/300 Microprocessor with a Cycle-Level Timing Extension

We describe an implementation of the Renesas H8/300 16-bit processor in VHDL suitable for synthesis on an FPGA. We extended the ISA slightly to accomodate cycle-accurate timers accessible from the instruction set, designed to provide more precise real-time control. We describe the architecture of our implementation in detail, describe our testing strategy, and finally show how to built a cross compilation toolchain under Linux

Executive summary of the joint position paper on renal denervation of the Cardiovascular and Interventional Radiological Society of Europe (CIRSE) and the European Society of Hypertension (ESH)

No abstract available

Four New Delta Scuti Pulsators from a Variability Survey of 131 Stars

In a photometric variability survey of 131 stars with B < 14 mag, we have found four new Delta Scuti stars. We were sensitive to oscillation amplitudes as low as a few mmag. The detection rate of short-period (P < 0.1 d) pulsating variable stars, which may be relevant for planned large variability surveys such as GAIA, POI, and even the LSST, was therefore 3%. All four new variable stars have low pulsation amplitude (tens of mmag), and one has a very short period (0.0198 d). This star is one of the fastest known Delta Scuti pulsators. The short period of this variable star makes it observationally tractable, and it may therefore be a particularly good candidate for asteroseismological studies. All four new variable stars will add to the cadre of low-amplitude and relatively short-period Delta Scuti stars that are potentially useful for learning about the structure of stars on or near the main sequence, slightly more massive than the Sun.Comment: To appear in the June 2002 issue of PASP, 9 pages, 6 figure

The associations of immigrants: integration and funding

As associações de imigrantes desempenham um papel fundamental na recepção e integração dos imigrantes. Esta associação surge da necessidade de conhecer, diferenciar e representar. Este artigo analisa os diferentes tipos de organizações de imigrantes e de apoio a imigrantes, enfatizando a relação entre eles e as autoridades. A forte submissão das associações ao financiamento público e a dificuldade ou facilidade de acesso ao circuito subvencional são cruciais no desenvolvimento da sua própria gestão e sobrevivência das organizações. Por último, apresentamos um caso real em que se analisa o nível de reconhecimento e limites para a concessão de auxílios ou subsídios. Os resultados obtidos permitem concluir que a dependência é condição estrutural dessas entidades e tornou-se parte integrante do seu funcionamento. Immigrant associations play a fundamental role in the reception and integration of immigrants. This association arises because of the need to meet, to differentiate and represent. This paper analyzes the different types of organizations to support immigrants and migrants, stressing the relationship between them and public authorities. The strong submission to public funding and the difficulty or ease of access subsidies are crucial elements in developing their own management and survival. Finally, we present a real case study which allows the assessment of the level of recognition and limits for grants and subsidies. These results lead to the conclusion that the dependence is a structural condition of these institutions and has become an integral part of its operation

A social constructed human beeing : a (bio)technological approach

As a social construction, (bio)technology1 should not be studied out of the social field. From a Social Imaginaries approach, (bio)technology can be considered as a contemporary social magma formed by biological, technical, psychological, sociological and axiological factors. Orbiting around the the cyborg metaphor, in this article we intend to build a multidisciplinary approach of this polycontextureComo una construcción social, la (bio)tecnología no debe ser estudiada fuera del campo social. Desde una perspectiva analítica sobre los imaginarios sociales, la (bio)tecnología puede ser considerada como un magma social formado por factores biológicos, técnicos, psicológicos, sociológicos y axiológicos. Orbitando alrededor de la metáfora del cyborg, en este artículo nos proponemos construir un enfoque multidisciplinar de esta polycontextura

Report of the International Society of Hypertension (ISH) Hypertension Teaching Seminar organized by the ISH Africa Regional Advisory Group: Maputo, Mozambique, 2016

The International Society of Hypertension (ISH), in fulfilment of its mission of promoting hypertension control and prevention and also of advancing knowledge globally, organizes hypertension teaching seminars or ‘summer schools’ worldwide through the ISH Regional Advisory Groups. In Africa, seven of such seminars have been organized. This is a report of the eighth seminar held in Maputo, Mozambique, April, 2016. The seminar was attended by over 65 participants from 11 African countries. The Faculty consisted of 11 international hypertension experts. The eighth African hypertension seminar was a great success as confirmed by a pre- and post-test questionnaire