Search results for "Bt"
showing 10 items of 1498 documents
In vitro study of the apical microleakage with resilon root canal filling using different final endodontic irrigants
2015
Background: Endodontic microleakage or microfiltration refers to the percolation of fluids and micro-organisms at the interface of the obturation material and the walls of the root canal system. The aim of this in vitro study was to compare apical microfiltration of Resilon root canal filling by employing three dif ferent final irrigant solutions. Material and Methods: 128 single-rooted teeth were employed. The crowns were sectioned horizontally at the cemento-enamel junction and instrumented with 5.25% sodium hypochlorite (NaOCl) and 17% EDTA gel to obtain an instrumented 040 apical caliber. An intermediate irrigation was performed with distilled water. The roots were then randomly assigne…
Sealing ability of five different retrograde filling materials.
1996
The sealing ability of Amalgam, Harvard-Cement, Diaket, gold-leaf, and Ketac-Endo as retrofilling materials was investigated. Paper cones were fixed with Harvard-Cement in the instrumented roots of 100 extracted human incisors. Apicectomy was performed and a 2-mm-deep retrograde cavity was prepared. Teeth were assigned to five groups (n = 20); each group received a different filling material. Surfaces of the roots were isolated with nail polish. Teeth, were stored in 1% methylene blue dye for 72 h. Roots were sectioned, and the depth of dye penetration was evaluated through a stereomicroscope. Retrofills with Ketac-Endo showed significantly less leakage compared with amalgam. There was no s…
Influence of the Madden-Julian Oscillation on Southern African summer rainfall
2007
Rain-causing mechanisms over Southern Africa (south of 15˚S) involve both tropical and temperate dynamics. Most studies focused on the synoptical timescale, while the intraseasonal (20-120 days) variability has more been neglected to date. This study aims at determining whether the dominant mode of intraseasonal variability in the Tropics, namely the Madden-Julian Oscillation (MJO), has a significant impact on Southern African rainfall and associated atmospheric dynamics. The examination of outgoing longwave radiation (OLR) over Southern Africa shows indeed significant intraseasonal fluctuations at the 30-60 day timescale, i.e. in the pe- riods that are typically reminiscent of the MJO. In ord…
Determinants of Sub-Sovereign Government Ratings In Europe
2017
The aim of this paper is to identify the determinantsof the rating assigned to sub-sovereignentities in Germany, Austria, Belgium, France,Italy and Spain, using a total of 92 territorial entitiesfor the 1989-2012 period. Multinomial orderedprobit estimation models were estimatedfor each specifi cation and agency.We conclude that the country’s rating is oneof the most important determinants of regionalgovernment’s ratings with a positive infl uence(as expected), and that the country debt/GDPratio is a stronger determinant for regions thantheir own indebtedness with a negative sign.Other relevant variables are population growthrate, unemployment rate, elderly people weight,regional public exp…
Accessibilità e contronarrazione al Sole Luna Doc Festival. Sottotitolare le storie dei documentari
2021
This work is placed in the context of studies on the accessibility of audiovisual products in the realm of independent cinema, with its ability to provide access to social, cultural, historical and political truths, and also in the context of studies on audiovisual translation as an instrument providing access to audiences with specific and general disabilities, and to audiences with normal hearing. Against the backdrop of documentary festivals and, in particular, within the framework of the Sole Luna Doc Film Festival, scrutiny is placed on interlingual subtitling (also for the deaf and hard of hearing) as the most frequently used and disseminated practice. The three dominant languages are…
Eiropas Savienības Tiesas un tās judikatūras ietekme Eiropas Ekonomikas zonu
2016
Eiropas Ekonomikas zonas līguma virsmērķis ir homogēna normu piemērošana visā Eiropas Ekonomikas zonā, tādējādi stiprinot ekonomiskās un tirdzniecības attiecības starp valstīm. Eiropas Savienībā šo vienveidību nodrošina Eiropas Savienības Tiesa, tomēr ņemot vērā, ka vairums EEZ līguma normu ir ES normu reprodukcija, un EST savā atzinumā 1/91 ir norādījusi, ka pastāv fundamentālas atšķirības starp Savienības tiesību sistēmu un EEZ, ir svarīgi saprast, kā ES normas darbojas EEZ EBTA valstīs, un kādas ir atšķirības no ES, kas arī ir šī darba mērķis. Lai atbildētu uz šiem jautājumiem, darbā uzsvars tiks likts uz EEZ normu galvenā piemērotāja – EBTA Tiesas – atziņām, un salīdzinātas ar EST judik…
Surface debris of canal walls after post space preparation in endodontically treated teeth: A scanning electron microscopic study
2004
Abstract Purpose To evaluate surface cleanliness of root canal walls along post space after endodontic treatment using 2 different irrigant regimens, obturation techniques, and post space preparation for adhesive bonding. Study design Forty teeth, divided into 4 groups, were instrumented, using Ni-Ti rotary files, irrigated with NaOCl or NaOCl + EDTA and obturated with cold lateral condensation (CLC) or warm vertical condensation (WVC) of gutta-percha. After post space preparation, etching, and washing procedure, canal walls were observed using a scanning electron microscope (SEM). Amount of debris, smear layer, sealer/gutta-percha remnants, and visibility of open tubules were rated. Result…
‘Ordinary’ and ‘diverse’ families : A case study of family discourses by Finnish early childhood education and care administrators
2021
The increased family diversity is a major global trend. Although family configurations are also diverse in contemporary Finland, it has been argued that Finnish family policies and institutional understanding of family life continues to focus on the heteronormative two-parent family with a native Finnish background. To address this issue, we analysed Finnish family discourses through qualitative interviews with early childhood education and care administrators (n = 47), applying a discourse analytic framework. Our results suggest that families are discussed through two divergent but interwoven discourses, i.e. the discourse of ordinary families and that of diverse families. The former focus…
Shape and size in phytoplankton ecology: do they matter?
2007
This paper summarises the outcomes of the 14th Workshop of the International Association of Phytoplankton Taxonomy and Ecology (IAP). The authors mostly addressed their contributions on the following topics: morphological and morpho-functional descriptors of phytoplankton, size and shape structure of phytoplankton related to different kinds of environmental variables and the role of morphological and physiological plasticity of phytoplankton in maintaining the (apparently) same populations under different environmental conditions. Case studies from different kinds of aquatic environments (deep and shallow lakes, reservoirs with different age, purpose and trophic state, floodplain wetlands m…
Species Composition and Structure of Beetle Associations in Caves of the Częstochowa Upland, Poland
2023
This paper presents the study’s results on beetles (Insecta: Coleoptera) inhabiting caves in the Częstochowa Upland, southern Poland. During two years of research, 2084 specimens, representing 105 species from 19 beetle families, were collected. The obtained results indicate that many beetle species choose to inhabit caves despite lacking specific adaptations for living in such environments. The cave entrance zone is the most attractive place for surface species to inhabit because its climatic conditions are more stable than outside the cave, some sunlight is present, and the availability of organic matter is high. In the deeper parts of the studied caves, the number of occurring species ra…