150 research outputs found
Vom ‚kalten Terroristen’ zum Friedenskaiser? Über die Wende im politischen Wirken von Octavian zu Augustus
The political carreer of Rome’s first princeps poses the
question how the merciless combatant Octavian could become, after
his victory in the civil war, Augustus, the bringer of peace. From the
beginning, and also during the fight for power, Octavian had an
overarching goal in mind, which can be explained by his descent, his
close relationship to Caesar and his roots in the Roman tradition, all of
which were formative infl uences on his personality. Therefore, res publica restituta has to be conceptualised as an act of historical reception which connected the new order with the republic and in which the person of the monarch and his achievement became one and the same thing. It is the historical tragedy of his political work that he could not avoid becoming guilty in acting out his vision.Die politische Laufbahn des ersten römischen
Kaisers wirft die Frage auf, wie aus dem seine Gegner erbarmungslos
vernichtenden Bürgerkriegskämpfer Octavian nach seinem Sieg der
maßstabsetzende Friedensherrscher Augustus werden konnte. Im Kampf
um die Macht hatte Octavian jedoch von Beginn an ein weitergehendes
Ziel vor Augen, das sich aus seiner Herkunft, seiner Nähe zu Caesar
und seiner Verwurzelung in der römischen Tradition erklären lässt
und von dem seine Person geprägt war. Res publica restituta ist als Akt
historischer Rezeption aufzufassen, der die neue Ordnung mit der der
Republik verband und in dem Person und Werk des Monarchen zur
Einheit wurden. Dass er dafür einen Weg gehen musste, auf dem er
nicht vermeiden konnte, Schuld auf sich zu laden, macht die historische
Tragik seines politischen Wirkens aus
Associação dos fatores fÃsicos, psiquiátricos e socioeconômicos e os escores do WHOQOL-Bref
The aim of this study is to investigate the impact of psychiatric morbidity, depression, cognitive deficit, number of self-reported illnesses and socio-demographic variables on the WHOQOL-Bref domain scores. WHOQOL-Bref domain scores are substantially affected by psychiatric morbidity and income. Depression, the number of self-reported illnesses and the female gender also explain the variability of other domains to a lesser extent.O objetivo deste estudo é o de investigar o impacto da morbidade psiquiátrica, depressão, comprometimento cognitivo, número de doenças autorreferidas e variáveis sociodemográficas nos escores do WHOQOL-Bref. Os escores dos domÃnios do WHOQOL-Bref estão associados à morbidade psiquiátrica e renda. A depressão, o número de doenças autorreferidas e o sexo feminino também explicam a variabilidade nos outros domÃnios, porém em menor grau.Conselho Nacional de Desenvolvimento CientÃfico e Tecnológico (CNPq)Universidade Federal de São Paulo (UNIFESP) Departamento de PsiquiatriaCentro Universitário HermÃnio OmettoUNIFESP, Depto. de PsiquiatriaSciEL
Bruit des oscillateurs et des résonateurs à quartz
Un des problèmes qui se posent au concepteur des oscillateurs à quartz de haute stabilité est le bruit propre des résonateurs. Nous effectuons tout d'abord une brève description des principaux mécanismes susceptibles d'affecter la stabilité des oscillateurs et des résonateurs à quartz. Ensuite sont explicitées les grandeurs mises en jeu dans la métrologie des fréquences : la densité spectrale de bruit de phase dans le domaine spectral et la variance d'Allan dans le domaine temporel. Enfin nous présentons l'instrumentation utilisée et développée pour la mesure du bruit des oscillateurs en général et des résonateurs en particulier
Manifestaciones orales en pacientes sometidos a terapia con yodo radioactivo administrado por via oral, como tratamiento para el cáncer diferenciado de tiroides en el Centro Nacional de Radioterapia Nora Astorga de la ciudad de Managua durante el segundo semestre del año 2016
La leucemia linfoblástica aguda, se caracteriza por la proliferación desordenada de células inmaduras (linfoblastos) que provienen de la célula madre. El flujo y pH salival son elementos importantes en la prevención de caries y se ven afectados en los niños con LLA, quienes reciben quimioterapia; convirtiéndolos en un grupo vulnerable.
Objetivo: El objetivo de este estudio fue relacionar la variación del flujo y pH salival en niños y adolescentes con LLA, como factor de riesgo a caries dental.
Material y método: Se examinaron 40 niños, se dividieron en dos grupos, un grupo caso (niños con LLA) y un grupo control (niños sanos) cada uno de 20 niños respectivamente, se realizó un examen clÃnico y recolección de flujo salival para su posterior medición de volumen y pH salival.
Resultados: En el grupo caso se registró un porcentaje de piezas cariadas de 15.89%, el 65% se cepillan los dientes 3 veces al dÃa; en el grupo control se registró un porcentaje de 16.25% de piezas cariadas; el 70% se cepillan los dientes 3 veces al dÃa. Ningún grupo utiliza auxiliares de higiene oral y en ambos la experiencia de caries se categoriza como leve.
Conclusión: El flujo y pH salival no son factores de riesgo estadÃsticamente significativos para la presencia de caries en niños con LLA.
Recomendaciones: Creación de clÃnica odontológica para atención integral; realizar programas de prevención y charlas a padres, niños y personal de trabajo de la casa albergue, asà como fomentar nuevas investigaciones.
Palabras claves: Flujo Salival, pH, LLA, Caries Denta
Volume Dependence in Handel's Model of Quartz Crystal Resonator Noise
International audienceAlthough criticized by many, Handel's quantum model for 1/f noise remains the only model giving a quantitative estimation of the level of intrinsic 1/f noise in quartz crystal resonators that is compatible with the best experimental results. In this paper, we reconsider the volume dependence in this model. We first argue that an acoustic volume, representing the volume in which the vibration energy is trapped, should be used instead of the geometrical volume between the electrodes. Then, we show that because there is an implicit dependence of the quality factor of the resonator with its thickness, the net effect of Handel's formula is not an increase of noise proportionally to the thickness of the resonator, as could be naïvely expected, but a net decrease when thickness increases. Finally, we show that a plot of Q4Sy versus the acoustic volume, instead of the usual Sy plot, could be useful to compare the quality of acoustic resonators having very different resonance frequencies
Titanium oxynitride thin films sputter deposited by the reactive gas pulsing process
International audienc
Advanced bridge instrument for the measurement of the phase noise and of the short-term frequency stability of ultra-stable quartz resonators
High-stability quartz oscillators are needed in a number of space applications. A short-term stability of parts in 10^{-14} [Allan deviation σy(τ) ] is sometimes required, for integration time τ of approximately 1-10 s. The Centre National d'Etudes Spatiales (CNES) and the FEMTO-ST Institute (formerly LPMO and LCEP), have been collaborating for many years in this domain, aiming at measuring and at understanding the oscillator noise. The highest stability has been observed on 5 MHz and 10 MHz bulk acoustic-wave resonators. Yet this stability is still not sufficient, or the the manufacturing method is not reproducible. Recently, the analysis of a few premium-stability oscillators has demonstrated that the oscillator frequency instability is due to the fluctuation of the resonator natural frequency, rather than to the noise of the sustaining amplifier via the Leeson effect. It is therefore natural to give attention to the measurement of the resonator fluctuations
A Program to Analyse the Origin of Noise in Ultra- Stable Quartz Crystal Resonators
International audienceIn the mid 90s the quartz crystal oscillator attained a stability in the upper 10–14 (flicker floor of the Allan deviation σy(τ), which occurs at τ =1..10 s). As a matter of fact, the highest stability was obtained with bulk-acoustic-wave quartz crystal resonators at 5 MHz and at 10 MHz. Since, the research for higher stability seems to be at a standstill, while space applications are more and more demanding. Recently, the analysis of a few premium-stability oscillators has shown that the oscillator frequency instability is due to the fluctuation of the resonator natural frequency, rather than to the noise of the sustaining amplifier via the Leeson effect. It is therefore natural to give attention to the measurement of the resonator fluctuations. The Centre National d'Etudes Spatiales (CNES) and FEMTO-ST Institute have started a research program on the origin of noise in 5 MHz and 10 MHz quartz crystal resonators. Several European manufacturers of high-stability resonators and oscillators participate. This article reports on the present status and on the future plans of this program. The first part consists in the analysis of the sensitivity of selected resonators to various externally-controlled parameters, like temperature, drive power, load impedance, series capacitance. The second part, planned, consists of listing the possible causes of noise, and of modeling their effects on frequency stability. Tests and measurements are mainly performed on an advanced phase noise measurement system, recently set up for this program. Of course, this program is a unique opportunity to test various batches of 5 MHz and 10 MHz resonators provided by the industrial partners
Maison Curutchet
Nota que trata sobre las impresiones recibidas por el arquitecto y su hija en la visita realizada en el año 2002, a la paradigmática casa platense.Facultad de Arquitectura y Urbanism
Maison Curutchet
Nota que trata sobre las impresiones recibidas por el arquitecto y su hija en la visita realizada en el año 2002, a la paradigmática casa platense.Facultad de Arquitectura y Urbanism
- …