Search results for "Rite"
showing 10 items of 2726 documents
Household water source and the risk of childhood brain tumours: results of the SEARCH International Brain Tumor Study.
2004
Background The period in utero is a time of increased vulnerability. Offspring of pregnant women exposed to carcinogenic substances in drinking water may be more likely to develop cancer. We examined whether household water source and the presence of nitrates or nitrites in residential water were associated with increased risks of childhood brain tumours (CBT). Methods We used data from a multicentre, case-control study with maternal information on residential water source, and nitrate/nitrite levels of tap water measured by dipstick. Subjects included 836 CBT cases and 1485 controls from five countries. Results The risks of CBT associated with reliance on well water (versus public water) d…
Ethnography on tourist spaces
2017
Tourism-related research, despite the great number of books and studies, seems to face one of its worst epistemological crises. At some extent, scholars have serious difficulties to define what tourism means. Though anthropology was the discipline more prone to tourism, as it is, a rite of passage, the current state of indiscipline claimed by Tribe, de Escalona and Korstanje as well as the autonomy of an international academy is more oriented to marketing than to science, are some of the problems tourism research faces today (Tribe, 1997, 2010; Korstanje, 2010; de Escalona, 2015). In this difficult context, Nogues Pedregal provides readers with a masterful ethnography which serves to interp…
Gender and the gynecological examination: women's identities in doctors' narratives.
2007
The authors explore the constructions of gender in male doctors' narratives of gynecological examinations. Focusing on the ways in which gender identities are constructed in the stories of the medical encounter, they argue, first, that gender is more flexible during the visit with a gynecologist than has been suggested. Gendered identities are assumed and put aside as the interaction progresses, with its final stage—the pelvic examination—being constructed with gender removed. Second, they argue that undressing is invested with a special status during the examination. It is a gendered rite of passage between the two different ungendered subject positions of the doctor and the patient. They …
Computer vision-based approach for rite decryption in old societies
2015
International audience; This paper presents an approach to determine the spatial arrangement of bones of horses in an excavation site and perform the 3D reconstruction of the scene. The relative 3D positioning of the bones was computed exploiting the information in images acquired at different levels, and used to relocate provided 3D models of the bones. A novel semi-supervised approach was proposed to generate dense point clouds of the bones from sparse features. The point clouds were later matched with the given models using Iterative Closest Point (ICP).
Homo ludens - homo viator : le jongleur au coeur des échanges culturels au Moyen Age
2002
International audience
Etude expérimentale de la lamination des stromatolithes à Rivularia haematites en climat tempéré: édification des lamines micritiques
1997
The lamination of Rivularia haematites stromatolites (D.C.) Agardh was studied experimentally for 7 years. Micritic laminae are found to form in three stages: biological formation of dark laminae during the wet season, microsparitic calcification of these laminae in the form of clearly individualized polycrystalline aggregates and, finally, micritization of the latter by bacterial action. These three stages develop over 2 to 3 years. The occurrence of transverse, longitudinal and circular microfibrils in the outer sheath is thought to explain the nucleation and the three-dimensional structure of the microsparitic crystals of the dark laminae and of the polycrystalline aggregates.
The cremation structures of the Roman Empire: anthracological data versus historical sources
2011
ISSN: : 0210-3729; International audience; During the excavation of the Roman necropolis site Richeaume (Bouches-du-Rhone, Provence, France), cremation primary structures have been identified. A specific protocol consisting in collecting the entire sediment for sampling charred funeral remains on a grid of 20 to 40 cm, was systematically experimented and put into practice. The first anthracological results offer a reading of both qualitative and quantitative spatial residues of the cremation (including the discovery of the ignition lock, and technical aspects revealing a specific choice adapted to the practice of cremation). This reading led to interpret anthracological results in a technic…
The Efficacy of an Experimental Single Solution versus Alternate Use of Multiple Irrigants on Root Dentin Microhardness
2013
The objective of this work was to use fnite element analysis to compare the effect of forces coming to bear on abutments 4.1 or 5.0 mm in diameter connThis study was carried-out to evaluate and compare the efficacy of various irrigants when used singly or in combination on the microhardness of root canal dentin. Study Design: A total of 50 root-halves were randomly divided into 5 groups immediately after the initial baseline microhardness measurements and treated with: Group-1; 7.5%Ethylenediaminetetraaceticacid (EDTA)+ 2.5%sodium hypochlorite (NaOCl), Group-2; 7.5%ethyleneglycol-bis[b-aminoethylether]-N, N,N0,N0-tetraaceticacid (EGTA)+ 2.5%NaOCl, Group-3; 7.5%trans1,2diaminocyclohexane NNN…
Effectiveness of different disinfection techniques of the root canal in the elimination of a multi-species biofilm.
2019
Background The purpose of the study was to evaluate the effectiveness of different root canal disinfection techniques in the elimination of a multi-species biofilm from inside the root canal. Material and methods Fifty mandibular first premolars were used in the present study, standardized to 11mm of root length, and instrumented with a reciprocation system Reciproc, (VDW GmbH, Munich, Germany) to a #50. Longitudinally sectioned halves of the roots were obtained and washed with NaOCl 4%, EDTA 17% and 5% sodium thiosulfate, and sterilized by autoclaving for 15 minutes at 121°C. A multi-species biofilm broth was developed with three strains of bacteria under laboratory conditions: Enterococcu…
Evaluation of antibacterial efficacy of Chitosan, Chlorhexidine, Propolis and Sodium hypochlorite on Enterococcus faecalis biofilm : an in vitro study
2017
Background Long term successful root canal treatment requires effective debridement and disinfection of root canal system. Persistent periradicular lesions are usually associated with Enterococccus faecalis. Prompt research for natural alternatives for irrigation is mainly due to the constant increase in antibiotic resistant strains and side effects caused by synthetic drugs. Sodium hypochlorite; the gold standard for irrigation has many disadvantages. Therefore, the present study was aimed to explore newer irrigants probably be as more effective and at the same time would be less irritating to the tissues than NaOCl. Material and methods Ninety extracted human mandibular premolars were bio…