A formação docente no dispositivo pedagógico

The pedagogic device is constituted as a network of relationships that can be established between heterogeneous elements such as discourses, institutions, laws, administrative measures, scientific statements, philosophical propositions, ie, the said and unsaid. This paper aims to present an analysis on the theme "teacher training" from the perspective of the French philosopher Michel Foucault and his concept of the device. We performed the analysis of texts of the Patio magazine specializing in education.

La costituzione della polis pedagogica. Soggetto e oggetto nella costruzione del sapere.

La ricerca muove dall’ipotesi che le incalzanti riforme introdotte nella scuola italiana a partire dalla fine degli anni novanta non abbiano cambiato il dispositivo pedagogico della scuola tradizionale. Si è quindi andati alla ricerca nella “cassetta degli attrezzi” di Michel Foucault e di Célestin Freinet degli strumenti concettuali e pratici utili al cambiamento del dispositivo pedagogico L’esperienza politico- pedagogica del Lycée expérimental de Saint-Nazaire (Loire-Atlantique) è presentata come esempio di cambiamento possibile.

Registro de lectura : Dispositivo pedagógico que acompaña trayectorias formativas universitarias

El siguiente trabajo se enmarca en la línea de investigación sobre formación docente en Educación Física, desarrollada en el Centro Regional Universitario Bariloche de la Universidad Nacional del Comahue (CRUB-UNCo). Los proyectos que la integran, a partir del incremento sostenido del número de estudiantes que abandonan la carrera durante los dos primeros años, procuran interrogar las prácticas pedagógicas universitarias en ese campo, desentrañar sus modos particulares de producción y analizar su impacto en la constitución de los trayectos formativos de los y las estudiantes. En las indagaciones hallamos indicios de un trabajo docente sistemático para mejorar las condiciones de la enseñanza y del aprendizaje e identificamos dispositivos pedagógicos institucionales y áulicos a modo de andamiaje de las trayectorias estudiantiles y modos de recepción a los y las ingresantes. En esta oportunidad describimos y analizamos uno de estos dispositivos, denominado "registro de lectura", generado en la cátedra Pedagogía del 1º año del Profesorado en Educación Física del mencionado centro universitario. Dicho instrumento forma parte de una serie de prácticas pedagógicas deliberadamente planificadas en relación con el ingreso, la permanencia y el egreso del nivel superior, que pretende habilitar mejores escenarios para el desarrollo de los procesos educativos. El dispositivo, construido a modo de andamiaje de las prácticas lectoras de los y las estudiantes, pretende contribuir a la promoción de trayectorias formativas democráticas y procura dar lugar a nuevas explicaciones en tanto anclajes para la transformación y para la construcción de nuevos conocimientos así como lograr mejores intervenciones pedagógicas

Registro de lectura : Dispositivo pedagógico que acompaña trayectorias formativas universitarias

El siguiente trabajo se enmarca en la línea de investigación sobre formación docente en Educación Física, desarrollada en el Centro Regional Universitario Bariloche de la Universidad Nacional del Comahue (CRUB-UNCo). Los proyectos que la integran, a partir del incremento sostenido del número de estudiantes que abandonan la carrera durante los dos primeros años, procuran interrogar las prácticas pedagógicas universitarias en ese campo, desentrañar sus modos particulares de producción y analizar su impacto en la constitución de los trayectos formativos de los y las estudiantes. En las indagaciones hallamos indicios de un trabajo docente sistemático para mejorar las condiciones de la enseñanza y del aprendizaje e identificamos dispositivos pedagógicos institucionales y áulicos a modo de andamiaje de las trayectorias estudiantiles y modos de recepción a los y las ingresantes. En esta oportunidad describimos y analizamos uno de estos dispositivos, denominado "registro de lectura", generado en la cátedra Pedagogía del 1º año del Profesorado en Educación Física del mencionado centro universitario. Dicho instrumento forma parte de una serie de prácticas pedagógicas deliberadamente planificadas en relación con el ingreso, la permanencia y el egreso del nivel superior, que pretende habilitar mejores escenarios para el desarrollo de los procesos educativos. El dispositivo, construido a modo de andamiaje de las prácticas lectoras de los y las estudiantes, pretende contribuir a la promoción de trayectorias formativas democráticas y procura dar lugar a nuevas explicaciones en tanto anclajes para la transformación y para la construcción de nuevos conocimientos así como lograr mejores intervenciones pedagógicas

Registro de lectura : Dispositivo pedagógico que acompaña trayectorias formativas universitarias

El siguiente trabajo se enmarca en la línea de investigación sobre formación docente en Educación Física, desarrollada en el Centro Regional Universitario Bariloche de la Universidad Nacional del Comahue (CRUB-UNCo). Los proyectos que la integran, a partir del incremento sostenido del número de estudiantes que abandonan la carrera durante los dos primeros años, procuran interrogar las prácticas pedagógicas universitarias en ese campo, desentrañar sus modos particulares de producción y analizar su impacto en la constitución de los trayectos formativos de los y las estudiantes. En las indagaciones hallamos indicios de un trabajo docente sistemático para mejorar las condiciones de la enseñanza y del aprendizaje e identificamos dispositivos pedagógicos institucionales y áulicos a modo de andamiaje de las trayectorias estudiantiles y modos de recepción a los y las ingresantes. En esta oportunidad describimos y analizamos uno de estos dispositivos, denominado "registro de lectura", generado en la cátedra Pedagogía del 1º año del Profesorado en Educación Física del mencionado centro universitario. Dicho instrumento forma parte de una serie de prácticas pedagógicas deliberadamente planificadas en relación con el ingreso, la permanencia y el egreso del nivel superior, que pretende habilitar mejores escenarios para el desarrollo de los procesos educativos. El dispositivo, construido a modo de andamiaje de las prácticas lectoras de los y las estudiantes, pretende contribuir a la promoción de trayectorias formativas democráticas y procura dar lugar a nuevas explicaciones en tanto anclajes para la transformación y para la construcción de nuevos conocimientos así como lograr mejores intervenciones pedagógicas

Mastication Movements And Sleep Quality Of Patients With Myofascial Pain: Occlusal Device Therapy Improvements.

Patients with myofascial pain experience impaired mastication, which might also interfere with their sleep quality. The purpose of this study was to evaluate the jaw motion and sleep quality of patients with myofascial pain and the impact of a stabilization device therapy on both parameters. Fifty women diagnosed with myofascial pain by the Research Diagnostic Criteria were enrolled. Pain levels (visual analog scale), jaw movements (kinesiography), and sleep quality (Epworth Sleepiness Scale; Pittsburgh Sleep Quality Index) were evaluated before (control) and after stabilization device use. Range of motion (maximum opening, right and left excursions, and protrusion) and masticatory movements during Optosil mastication (opening, closing, and total cycle time; opening and closing angles; and maximum velocity) also were evaluated. Repeated-measures analysis of variance in a generalized linear mixed models procedure was used for statistical analysis (α=.05). At baseline, participants with myofascial pain showed a reduced range of jaw motion and poorer sleep quality. Treatment with a stabilization device reduced pain (P<.001) and increased both mouth opening (P<.001) and anteroposterior movement (P=.01). Also, after treatment, the maximum opening (P<.001) and closing (P=.04) velocities during mastication increased, and improvements in sleep scores for the Pittsburgh Sleep Quality Index (P<.001) and Epworth Sleepiness Scale (P=.04) were found. Myofascial pain impairs jaw motion and quality of sleep; the reduction of pain after the use of a stabilization device improves the range of motion and sleep parameters.

Weight Variation In Users Of Depot-medroxyprogesterone Acetate, The Levonorgestrel-releasing Intrauterine System And A Copper Intrauterine Device For Up To Ten Years Of Use.

Data on record regarding weight variation in depot-medroxyprogesterone acetate (DMPA) and levonorgestrel-releasing intrauterine system (LNG-IUS) users are controversial. To date, no studies have yet evaluated weight variation in DMPA and LNG-IUS users in up to ten years of use compared to non-hormonal contraceptive users. A retrospective study analysed weight variations in 2138 women using uninterruptedly DMPA (150 mg intramuscularly, three-monthly; n = 714), the LNG-IUS (n = 701) or a copper-intrauterine device (Cu-IUD; n = 723). At the end of the first year of use, there was a mean weight increase of 1.3 kg, 0.7 kg and 0.2 kg among the DMPA-, LNG-IUS- and Cu-IUD users, respectively, compared to weight at baseline (p < 0.0001). After ten years of use, the mean weight had risen by 6.6 kg, 4.0 and 4.9 kg among the DMPA-, LNG-IUS- and Cu-IUD users, respectively. DMPA-users had gained more weight than LNG-IUS- (p = 0.0197) and than Cu-IUD users (p = 0.0294), with the latter two groups not differing significantly from each other in this respect (p = 0.5532). Users of hormonal and non-hormonal contraceptive methods gained a significant amount of weight over the years. DMPA users gained more weight over the treatment period of up to ten years than women fitted with either a LNG-IUS or a Cu-IUD.

New methodology to assess activity status of occlusal caries in primary teeth using laser fluorescence device

An in vivo study was conducted to verify the ability of laser fluorescence (LF) to assess the activity status of occlusal caries in primary teeth, using different air-drying times. Occlusal sites (707) were examined using LF (DIAGNOdent) after air-drying for 3 s and 15 s, and the difference between readings (DIF15 s-3 s) was calculated. For concurrent validation of LF, visual criteria-Nyvad (NY) and Lesion Activity Assessment associated with the International Caries Detection and Assessment System (LAA-ICDAS)-were the reference standards for lesion activity. Histological exam using a pH-indicator dye (0.1% methyl red) was performed in 46 exfoliated/extracted teeth for criterion validation. LF readings and DIF15 s-3 s were compared using Kruskall-Wallis and Mann-Whitney tests. Receiver operating characteristic analyses were performed and validity parameters calculated, considering the caries activity assessment. Using NY, active lesions (3 s: 30.0 +/- 29.3; 15 s: 34.2 +/- 30.6) presented higher LF readings than inactive lesions (3 s: 17.0 +/- 16.3; 15 s: 19.2 +/- 17.3; p <0.05), different from LAA-ICDAS. Active cavitated caries resulted in higher LF readings (3 s: 50.3 +/- 3.5; 15 s: 54.7 +/- 30.2) than inactive cavitated caries (3 s: 19.9 +/- 16.3; 15 s: 22.8 +/- 16.8). Therefore, LF can distinguish cavitated active and inactive lesions classified by NY, but not by LAA-ICDAS; however, this difference might be related to the visual system rather than to LF. The air-drying time could be an alternative to improve the caries activity assessment; however, longer air-drying time is suggested to be tested subsequently. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3463007]

Mn-doped cubic BN as an atomiclike memory device: A density functional study

We investigate the electronic properties of Mn(B) substitutional doping in cubic boron nitride (BN), for different charge states, using density functional theory (DFT) calculations. We show that the neutral Mn has a nonmagnetic ground state (S=0). Upon charge injection, it is unambiguously shown that the Mn(B)(-) has a high-spin configuration with a strong, localized magnetic moment of 5 mu(Bohr). We developed a simple model, parameterized by the DFT results, that allows us to interpret the rules played by the crystal-field and exchange-correlation splitting in the magnetization process.

Organic molecule assembled between carbon nanotubes: A highly efficient switch device

We report a highly efficient switch built from an organic molecule assembled between single-wall carbon nanotube electrodes. We theoretically show that changes in the distance between the electrodes alter the molecular conformation within the gap, affecting in a dramatic way the electronic and charge transport properties, with an on/off ratio larger than 300. This opens up the perspective of combining molecular electronics with carbon nanotubes, bringing great possibilities for the design of nanodevices.

A sampling device to quantify offspring release of sessile marine invertebrates

Quantifying the rate of propagule release is of most importance to estimate reproductive output of natural populations, but simple methods to obtain such data are seldom reported. We designed and tested an inexpensive apparatus capable of reliably measure the release of gametes, eggs or larvae of sessile marine invertebrates in vertical walls. A population of the acom barnacle Chthamalus bisinuatus was sampled with this trap over 68d to obtain a time series of naupliar release. An apparent semilunar trend is shown, indicating the effectiveness of this sampling method.

Developing and implementing an open and non-proprietary device description for FOUNDATION fieldbus based on software standards

Support for interoperability and interchangeability of software components which are part of a fieldbus automation system relies on the definition of open architectures, most of them involving proprietary technologies. Concurrently, standard, open and non-proprietary technologies, such as XML, SOAP, Web Services and the like, have greatly evolved and been diffused in the computing area. This article presents a FOUNDATION fieldbus (TM) device description technology named Open-EDD, based on XML and other related technologies (XLST, DOM using Xerces implementation, OO, XMIL Schema), proposing an open and nonproprietary alternative to the EDD (Electronic Device Description). This initial proposal includes defining Open-EDDML as the programming language of the technology in the FOUNDATION fieldbus (TM) protocol, implementing a compiler and a parser, and finally, integrating and testing the new technology using field devices and a commercial fieldbus configurator. This study attests that this new technology is feasible and can be applied to other configurators or HMI applications used in fieldbus automation systems. (c) 2008 Elsevier B.V. All rights reserved.

Electro-optically sensitive diamond-like carbon thin films deposited by reactive magnetron sputtering for electronic device applications

The goal of this work is to study and relate electrical and optical properties of diamond-like carbon (DLC) thin films for applications in electronic devices. DLC films were deposited in a reactive RF magnetron sputtering system on p-type silicon and glass substrates. The target was a 99.9999% pure, 6 in. diameter graphite plate and methane was used as processing gas. Eight DLC films were produced for each substrate, varying deposition time, the reactor pressure between 5 mTorr and 10 mTorr while the RF power was applied at 13.56 MHz and varied between 100, 150, 200 and 250W. After deposition, the films were analyzed by I-V and C-V measurements (Cheng et al. (2004) [1]) in order to determine the electric resistivity, photo-current response and dielectric constant, optical transmittance, used to find the optical gap by the Tauc method; and by photoluminescence analysis to determine the photoemission and confirm the optical band gap. These characteristics are compared and the influence of the deposition parameters is discussed. (C) 2011 Published by Elsevier B.V.

Development and fabrication of an optimized thermo-electro-optic device using a Mach-Zehnder interferometer

The development and fabrication of a thermo-electro-optic sensor using a Mach-Zehnder interferometer and a resistive micro-heater placed in one of the device`s arms is presented. The Mach-Zehnder structure was fabricated on a single crystal silicon substrate using silicon oxynitride and amorphous hydrogenated silicon carbide films to form an anti-resonant reflective optical waveguide. The materials were deposited by Plasma enhanced chemical vapor deposition technique at low temperatures (similar to 320 degrees C). To optimize the heat transfer and increase the device response with current variation, part of the Mach-Zehnder sensor arm was suspended through front-side bulk micromachining of the silicon substrate in a KOH solution. With the temperature variation caused by the micro-heater, the refractive index of the core layer of the optical waveguide changes due to the thermo-optic effect. Since this variation occurs only in one of the Mach-Zehnder`s arm, a phase difference between the arms is produced, leading to electromagnetic interference. In this way, the current applied to the micro-resistor can control the device output optical power. Further, reactive ion etching technique was used in this work to define the device`s geometry, and a study of SF6 based etching rates on different composition of silicon oxynitride films is also presented. (C) 2007 Elsevier B.V. All rights reserved.

Single Axis Controlled Hybrid Magnetic Bearing for Left Ventricular Assist Device: Hybrid Core and Closed Magnetic Circuit

In previous studies, we presented main strategies for suspending the rotor of a mixed-flow type (centrifugal and axial) ventricular assist device (VAD), originally presented by the Institute Dante Pazzanese of Cardiology (IDPC), Brazil. Magnetic suspension is achieved by the use of a magnetic bearing architecture in which the active control is executed in only one degree of freedom, in the axial direction of the rotor. Remaining degrees of freedom, excepting the rotation, are restricted only by the attraction force between pairs of permanent magnets. This study is part of a joint project in development by IDPC and Escola Politecnica of Sao Paulo University, Brazil. This article shows advances in that project, presenting two promising solutions for magnetic bearings. One solution uses hybrid cores as electromagnetic actuators, that is, cores that combine iron and permanent magnets. The other solution uses actuators, also of hybrid type, but with the magnetic circuit closed by an iron core. After preliminary analysis, a pump prototype has been developed for each solution and has been tested. For each prototype, a brushless DC motor has been developed as the rotor driver. Each solution was evaluated by in vitro experiments and guidelines are extracted for future improvements. Tests have shown good results and demonstrated that one solution is not isolated from the other. One complements the other for the development of a single-axis-controlled, hybrid-type magnetic bearing for a mixed-flow type VAD.