Formação de educadores populares : análise da experiência educativa de creches comunitárias vinculadas a Associação de Educadores Populares de Porto Alegre AEPPA
- Graciete Maria de Oliveira
A dissertação tem como objeto de estudo a formação de educadores populares. Através da perspectiva qualitativa e o método de estudo de caso, investigou-se a práxis de educadores populares de creches comunitárias vinculadas a Associação de Educadores Populares de Porto Alegre - AEPPA, contextualizando a trajetória histórica de creches, analisando a formação e a práxis de educadores desta instituição e verificando sua contribuição Teo-pedagógica. Tem como foco central a reflexão sobre a significação e ressignificação da práxis de educadores populares após a formação continuada proposta pela AEPPA. O texto está estruturado em três capítulos. No primeiro capítulo foi evidenciado que...
Identification of differentially expressed genes in NASH-related cirrhosis
- Marcia Saldanha Kubrusly
A doença hepática gordurosa não alcoólica (DHGNA) compreende um amplo espectro morfológico de doenças com potencial de progressão em pacientes sem história de etilismo. Pode evoluir para esteatohepatite não alcoólica (EHNA), fibrose, cirrose e carcinoma hepatocelular. Com intuito de investigar as diferenças genéticas entre tecido hepático normal e cirrose secundária a EHNA, utilizamos microarranjos de oligonucleotídeos (CodeLink Uniset Human Whole Genome Bioarray System GE Healthcare - Bio-Sciences, Chalfont St. Giles, UK) para caracterizar os perfis de expressão nas duas condições. Analisamos 3 amostras de cirrose secundária a EHNA e 3 amostras de fígado normal provenientes de doadores durante o transplante...
Las Bulas de Rodrigo de Borja y los orígenes de la imprenta española
- Reyes Gómez , Fermín de los
El artículo parte del hallazgo en el archivo de la Catedral de Segovia de varios ejemplares de la Bula de Rodrigo de Borja. Se extiende en la historia bibliográfica de la Bula de Borja y de los cinco ejemplares impresos y los dos manuscritos conservados. Aporta datos para situar las bulas en su contexto, en relación con los primeros testimonios de la imprenta en España. Pone de manifiesto la existencia de dos ediciones de dicha bula, una para la vida, y otra para difuntos, novedosa en su versión impresa. Sitúa su impresión en el año 1473 y apunta la posible...
La imprenta mejicana en la biblioteca de Francisco Guerra
- Reyes Gómez, Fermín de los
La biblioteca de Francisco Guerra de la Biblioteca Histórica de la Universidad Complutense incluye una colección relativa a Méjico, con impresos de los siglos XVI al XIX. Los más significativos, en calidad y cantidad, corresponden a la imprenta mejicana de los siglos XVI al XVIII.
Los contenidos son variados, destacando tres bloques: el científico, el histórico y el religioso. En general, presentan un buen estado de conservación y en alguno se muestran rastros de como fue adquirido.
Las encuadernaciones de las obras de Cervantes en la Biblioteca Histórica de la UCM
- Carpallo Bautista, Antonio
Estudio de las encuadernaciones artísticas realizadas en los siglos XVIII, XIX y principios del XX de las obras de Cervantes que con motivo del IV centenario de la publicación del Quijote se mostraron en la exposición "Don Quijote en el Campus: Tesoros Complutenses celebrada en el primer semestre de 2005" en la Biblioteca Histórica de la universidad Complutense de Madrid y que pertenecen a la colección de dicha institución
Altitud y riesgo neurológico: alpinistas europeos versus sherpas del Himalaya
- Garrido Marín, Eduardo
La exposición humana a grandes altitudes puede provocar diversos grados de deterioro funcional y orgánico, presentando el sistema nervioso una gran sensibilidad frente a cambios en la presión parcial de oxígeno.
Mediante una historia clínica especialmente confeccionada, exploración física neurológica y resonancia magnética (RMI) craneal se estudió a varios grupos de alpinistas de élite que hubieran escalado por encima de los 7.000 m. de altitud en utilizar equipos de oxígeno en una ocasión como mínimo. Éstos fueron comparados (en diferentes fases de estudio) contra ellos mismos, con un grupo de nativos del Himalaya de la etnia Sherpa que poseían un historial...
Why do large breast cancers still present in a population offered screening?
- Kricker, Anne; Newman, Beth M.; Gertig, Dorota M.; Goumas, Chris; Armes, Jane; Armstrong, Bruce K.
Rates of large breast cancers should decrease in a population that is offered mammography screening, but women continue to present with them. We sought an explanation in a population-based epidemiological study of 1,459 women diagnosed with invasive breast cancer in 2002-2003 in Australia; breast cancers were 2 cm in 766 women (53%) and 11-1.9 cm in a comparison group (693, 47%). We interviewed the women about their personal, mammogram and breast histories in the years before diagnosis and collected biological characteristics of tumors and mammogram dates from medical records. The strongest correlate of breast cancer size at diagnosis was the...
Magical Realism and Writing Place: A Novel and Exegesis
- Guest, Dorothy Glenda
The aim of this thesis is to interrogate, in the exegesis, and amplify, in the creative work, the conjunctions of literary magical realism and writing place. The exegesis is presented in four chapters that examine some aspects of magical realism, with the main focus on the Latin American strand that has as a main influence Alejo Carpentiers concept of lo real maravilloso americano (the marvellous place of America). The accompanying novel, Siddon Rock, takes the concept of mythology- and place-centred magical realism and places it in the Australian landscape of a small country town just after world war 2.
High voltage transmission microscopy of Surveyor 3 camera shrouds
- Fisher, R. M.; Thomas, L. E.; Duff, W. R.; Radcliffe, S. V.
The internal structure of painted and unpainted aluminum alloy sheet samples from the TV camera shrouds were examined by high-voltage transmission electron microscopy. No clear-cut evidence of radiation damage effects was observed. Noticeable differences in microstructures between the upper visor and the sides and bottom of the lower shroud suggest different thermal histories, and the maximum temperatures due to solar heating are estimated to be between 164 and 319 C. Some correlation between microstructures and maximum estimated temperature is noted. It is felt that the apparent temperature rise due to solar heating will not affect the structural integrity of spacecraft...
A Treatment of Measurements of Heptane Droplet Combustion Aboard MSL-1
- Marchese, A. J.; Ackerman, M. D.; Crouch, R. K.; Williams, F. A.; Dryer, F. L.; Voss, J. E.; Colantonio, R. O.; Linteris, G. T.; Nayagam, V.; Haggard, J. B.
Results of measurements on the burning of free n-heptane droplets (that is, droplets without fiber supports) performed in Spacelab during the flights of the first Microgravity Science Laboratory (MSL-1) are presented. The droplet combustion occurred in oxidizing atmospheres which were at an ambient temperature within a few degrees of 300 K. A total of 34 droplets were burned in helium-oxygen atmospheres having oxygen mole fractions ranging from 20 to 50 percent, at pressures from 0.25 to 1.00 bar. In addition, four droplets were burned in air at 1.00 bar, bringing the total number of droplets for which combustion data were...
Blast from bursting frangible pressure spheres
- Esparza, E. D.; Baker, W. E.
Laboratory experiments conducted to obtain incident overpressure data from frangible spheres pressurized with two different gases and a vapor are described. Glass spheres under internal pressure were purposely burst to obtain time histories of overpressure using side-on pressure transducers. A scaling law for pressure spheres bursting in free-air is derived and presented. This law is simplified and used to obtain a functional relationship for the non-dimensional blast parameters. Peak overpressure, arrival and duration times, and impulse data are presented for different initial conditions and blast source energies. These dimensionless data are also compared, wherever possible, with results of theoretical calculations...
Effect of individual blade control on noise radiation
- Blaas, Achim; Niesl, G.; Jacklin, Stephen A.; Swanson, S. M.; Kube, R.
In a joint research program of NASA Ames Research Center, ZF Luftfahrttechnik, the German Aerospace Research Establishment (DLR), and EUROCOPTER Deutschland, a wind tunnel test was performed to evaluate the effects of Individual Blade Control (IBC) on rotor noise. This test was conducted in the 40x80 ft wind tunnel at NASA Ames Research Center, utilizing a full scale MBB-BO 105 four-bladed rotor system. Three microphones were installed for determination of the radiated noise, two of them on a moveable traverse below the advancing blade side and one in a fixed location below the retreating side. Acoustic results are presented for...
Tutorial on Solar Energetic-Particle Events
- vonRosenvinge, Tycho T.
Particles from the Sun at energies above approx. 1 MeV/nucleon have been studied in space for over 35 years. There have been major advances in instrumentation for studying elemental and isotopic composition, kinetic energy, charge states, time intensity histories, and anisotropies of energetic particles. There have also been extensive improvements in the observations of solar phenomena, including radio bursts, Coronal Mass Ejections (CMEs), and solar photons from soft X-ray to gamma-ray energies. Despite these advances, there is a lack of agreement as to the acceleration processes responsible for the particles seen in space shortly after the solar event. In particular,...
The Burst and Transient Source Experiment (BATSE) Earth Occultation Catalog of Low-Energy Gamma-Ray Sources
- Connaughton, V.; Sahi, M.; Peterson, B.; Wilson, C. A.; McCollough, M. L.; Harmon, B. A.; Fishman, G. J.; Finger, M. H.; Paciesas, W. S.; Henze, W.
The Burst and Transient Source Experiment (BATSE), aboard the Compton Gamma Ray Observatory (CGRO), provided a record of the low-energy gamma-ray sky (approx. 20-1000 keV) between 1991 April and 2000 May (9.1 yr). BATSE monitored the high-energy sky using the Earth occultation technique (EOT) for point sources whose emission extended for times on the order of the CGRO orbital period (approx. 92 min) or greater. Using the EOT to extract flux information, a catalog of sources using data from the BATSE Large Area Detectors has been prepared. The first part of the catalog consists of results from the all-sky monitoring...
- Thomas, P.; Veverka, J.; Dermott, S.
Satellites smaller than Mimas (r = 195 km) are distinguished by irregular overall shapes and by rough limb topography. Material properties and impact cratering dominate the shaping of these objects. Long fragmentation histories can produce a variety of internal structures, but so far there is no direct evidence that any small satellite is an equilibrium ellipsoid made up of noncohesive gravitationally bound rubble. One many bodies that orbit close to their primary the tidal and rotational components of surface gravity strongly affect the directions of local g and thereby affect the redistribution of regolith by mass wasting. Downslope movement of...
Speculative histories of the Uranian satellite system
- Peale, S. J.
The hypothetical histories presently considered for the Uranian satellite system are very sensitive to the assumed satellite masses, within the errors of their determinations, as well as to the Uranian tidal effective dissipation function. A determination is made of the resonances that could have been encountered in these histories, and of the orbital eccentricity constraints that would have led to certain capture. It is found that if the mass of Miranda were of the upper extreme value, it would have been locked in a long-term 2/1 orbital resonance with Ariel to form a Laplacelike, three-body resonance that encompassed Umbriel.
Particle track measurements in lunar regolith breccias
- Blanford, G. E.
Particle track measurements have been reported for 25 (5 percent) of the regolith breccias in the collection; they have been reported for 16 breccias (30 percent) in the reference suite. The most frequently reported measurement for these 25 breccias is the maximum surface exposure age of the compacted rock (48 percent of the published breccia measurements). Information on the nature of the precompaction regolith is given for 9 rocks (36 percent) and on the nature of the compaction event for 6 rocks (24 percent). Most of the breccias appear to have simple post-compaction surface exposure histories (89 percent). From the...
The Martian highland paterae: Evidence for explosive volcanism on Mars
- Crown, David A.; Greeley, Ronald
The Martian surface exhibits numerous volcanic landforms displaying great diversity in size, age, and morphology. Most research regarding Martian volcanology has centered around effusive basaltic volcanism, including analyses of individual lava flows, extensive lava plains, and large shield volcanoes. These studies were hindered by a lack of definitive morphologic criteria for the remote identification of ash deposits. Knowledge of the abundances, ages, and geologic settings of explosive volcanic deposits on Mars is essential to a comprehensive understanding of the evolution of the Martian surface, with implications for the evolution of the lithosphere and atmosphere as well as the histories of...
Altitude and seasonal characteristics of aerosol backscatter at thermal infrared wavelengths using lidar observations from coastal California
- Menzies, Robert T.; Ancellet, Gerard M.; Tratt, David M.; Wurtele, Morton G.; Wright, Jeffrey C.
A calibrated CO2 lidar has been used to measure boundary layer aerosol backscatter and vertical profiles of tropospheric and lower stratospheric aerosol backscatter over a 1984-1987 time period from a site in Pasadena, California. The lidar data have been taken at two wavelengths, 9.25 and 10.6 microns. Data are presented which show altitude, seasonal, and trend characteristics of backscatter for various air mass histories. Results of trajectory studies indicate the influence of convective activity and other factors on the backscatter profiles.
Reionization and its imprint of the cosmic microwave background
- Dodelson, Scott; Jubas, Jay M.
Early reionization changes the pattern of anisotropies expected in the cosmic microwave backgrond. To explore these changes, we derive from first principles the equations governing anisotropies, focusing on the interactions of photons with electrons. Vishniac (1987) claimed that second-order terms can be large in a reionized universe, so we derive equations correct to second order in the perturbations. There are many more second-order terms than were considered by Vishniac. To understand the basic physics involved, we present a simple analytic approximation to the first-order equation. Then, turning to the second order equation, we show that the Vishniac term is indeed...