Search results for " table"

A Monte Carlo investigation of the dosimetric characteristics of the CSM11 137Cs source from CIS

2000

The purpose of this study is to calculate basic dosimetry data for a CSM11 low dose rate 137Cs source in water. This source is widely used in afterloadable dome cylinders designed to homogeneously irradiate the vaginal cuff alone or additional areas of the vagina in hysterectomized patients. In this study, the Monte Carlo simulation code GEANT, incorporating in detail source geometry, is used to investigate the dosimetric characteristics of the source. The calculated data were analyzed using a fitting procedure that is described in detail. Absolute dose rate distributions in water were calculated around this source and are presented as conventional 2D Cartesian lookup tables (classically al…

Dosimetric characteristics of the CDC-type miniature cylindrical 137Cs brachytherapy sources

2002

The low dose rate CDC-type miniature cylindrical 137 Cs sources are available, with one or three active beads, for use in source trains in automatic and manual afterloading systems for gynecological brachytherapy. Absolute dose rate distributions in water have been calculated around these sources using the Monte CarloGEANT3 code and they are presented as conventional two-dimensional Cartesian lookup tables. The AAPM Task Group 43 formalism for dose calculation has been also applied. The dose rate constant obtained for the one bead source is Λ=1.113±0.003 cGyh −1 U −1 , and the value for the three bead source is Λ=1.103±0.003 cGyh −1 U −1 . Finally, for the treatment planning systems based o…

<i>Amblyseius fennicus</i> sp. n. (Acarina, Gamasina: Phytoseiidae) from Finland, with a key to the <i>A. americanus</i> group

2012

A new species is described belonging to the Amblyseius (s. str.) americanus group (Denmark & Muma, 1989). It was collected regularly from trunks of old trees in Finland. A key is given including the known species of the A. americanus group.

L’intégration des technologies numériques à l’École : discours et pratiques en tension : étude d’une expérimentation « tablettes » en collège

2019

This thesis focuses on educational policies in favor of digital technologies and on levers of action implemented to encourage students and teachers to use these technologies in school. The ethnographic study took place from July 2013 to October 2015 and was conducted in a college engaged in tablet experimentation for digital education (TED). The research focuses on the processes of appropriation of a mobile technology designed to be educational and aimed at developing innovative and enriched new instrumented practices. The experiment study is centered around the device concept. To analyze the actual or expected effects of the use of a socio-technical object in an educational context and the…

Spatial characterization of leachate plume using electrical resistivity tomography in a landfill composed of old and new cells (Belfort, France)

2016

International audience; Located near Belfort (France), the Etueffont landfill was in operation from 1976 to 2002 for the disposal and storage of domestic waste produced by 47,650 inhabitants. The site is comprised of the original landfill site called the old landfill (OL), in operation from 1976 to 1999, and a newer section known as the new cell (NC) which operated from 1999 to 2002. The objective of this study is to determine, using electrical resistivity tomography (ERT), the extent of the leachate plume from the OL and to monitor the efficiency of the liner of the NC. The entire Etueffont site was crisscrossed with 21 electrical profile lines which were traced in summer between 2009 and …

Gas chromatography-mass spectrometry study of polycyclic aromatic hydrocarbons in grass and milk from urban and rural farms

2000

Polycyclic aromatic hydrocarbon (PAH) levels were studied in grass and milk sampled at two farms, one located in a non-contaminated, rural area, and another located in a urban area close to PAH sources such as highways, busy roads, fuel-powered trains and a steel plant. PAH concentration were measured by gas chromatography coupled to mass spectrometry (GC-MS) using internal deuterated standards. In grasses, unexpectedly, although the sum of PAH concentrations was only slightly higher at the urban farm (83.1 ± 16.1 ng g−1) than the rural farm (51.8 ± 10.6 ng g−1), this difference was not observed for all PAH members. This absence of a striking difference of PAH levels between urban and rura…

1991

L'etude viscosimetrique, potentiometrique et conductimetrique montre que le copolymere forme un complexe de stœchiometrie 2:1 avec le chlorure de palmityltrimethylammonium. Avec le laurylsuslfate de sodium, il y a d'abord formation d'un complexe de composition 2:1 puis par addition supplementaire du surfactant, formation d'un complexe 1:1

The relationship between bipolar disorder and alcoholism: a controlled family study.

1995

SYNOPSISBipolar disorder and alcoholism are familial disorders. The familial–genetic relationship between both is controversial and has received insufficient study. This study explores whether bipolar disorder and alcoholism share familial risk factors, and whether the co-occurrence of lifetime diagnosis of bipolar disorder and alcoholism is familial. We report on first-degree relatives of 146 consecutively admitted patients with either bipolar disorder or/and alcoholism; relatives of the patients (in total 728 relatives directly interviewed) were compared with first-degree relatives of 109 general population probands (320 relatives directly interviewed). Overlap between the familial compon…

Modelling a real situation with tablets: the ball experiment

2015

[EN] In this study we present an experience carried out in an 11th grade class. We use a teaching model designed to work the concepts of family of functions and parameter through the modelling. This model has the characteristic that the data are obtained by students in classroom using tablets and it includes elements that allow them to manage the modelling process. The analysis of the results revealed that the realization of a previous qualitative analysis of the phenomenon studied and the students’ knowledge about the families of functions and the meaning of the parameters are key elements in the management and control of the entire process. Besides, we obtained information about the stude…

In vitro models for the prediction of in vivo performance of oral dosage forms: Recent progress from partnership through the IMI OrBiTo collaboration

2019

The availability of in vitro tools that are constructed on the basis of a detailed knowledge of key aspects of gastrointestinal (GI) physiology and their impact on formulation performance and subsequent drug release behaviour is fundamental to the success and efficiency of oral drug product development. Over the last six years, the development and optimization of improved, biorelevant in vitro tools has been a cornerstone of the IMI OrBiTo (Oral Biopharmaceutics Tools) project. By bringing together key industry and academic partners, and by linking tool development and optimization to human studies to understand behaviour at the formulation/GI tract interface, the collaboration has enabled …