georgia is a country with a human development index (hdi) score of 0.733. significant deterioration in socio-economic conditions in the 1990s caused serious health problems in the population including oral health. since then, there has not been an epidemiological survey of dental diseases among the adult population in georgia.the pathfinder survey- cluster- stratified method derived by who was ...

The microstructure of an in-situ reinforced silicon nitride, gas pressure sintered with La2O3, Y2O3, and SrO additives and then heat treated, is examined with X-ray diffraction, SEM, and high-resolution TEM. Two crystalline rare-earth apatite phases, La5Si3O12N and Y5Si3O12N, are identified at the grain pockets and at the two-grain boundaries. The thickness of the crystalline phases at the two-...

Evidences of highly localized methane fluxes are reported from the Arctic shelf, hot spots of methane emissions in thermokarst lakes, and are believed to evolve to features like Yamal crater on land. The origin of large methane outbursts is problematic. Here we show, that the biogenic methane (δ13C ≤ −71h) which formed before and during soil freezing is presently held in the permafrost. Field a...

MOTIVATION A variety of pocket detection algorithms are now freely or commercially available to the scientific community for the analysis of static protein structures. However, since proteins are dynamic entities, enhancing the capabilities of these programs for the straightforward detection and characterization of cavities taking into account protein conformational ensembles should be valuable...

In this study, we experimentally investigate large-scale vortex structures, fuel-air mixing and reaction processes, which occur in a partially premixed swirl-stabilized ethylene/air flame laboratory-scale gas turbine model combustor. Time-resolved stereo-PIV, OH-PLIF, acetone/PAH-PLIF systems with repetition rate of 10 kHz are used to the behavior at 3 bar pressure an equivalence ratio Φ=1.2. F...

The dynami~ cha~:-acteristics of scroll compresso~: operation have been demonstrated and analyzed in a number of papers over the past decade. This paper discusses the modeling methods used to describe the scroll ~ompressor discharge dynamics. Nume~:ous models are required to accurately represent this complex dynamic p~:-ocess. These include the differential mass continuity and polytropic compre...

OBJECTIVES The aim of the study was to investigate the clearance of PVP-iodine applied as a gel or solution in periodontal pockets. METHODS Teeth of 12 subjects with at least eight periodontal pockets of ≥5 mm probing depth were isolated with a rubber dam to allow contamination-free access to the pockets. In each subject, three pockets were filled with PVP-iodine gel (10%) and three with PVP-...

OBJECTIVE To assess the relationship between periodontal treatment needs by elderly Brazilians and contextual as well as individual variables. METHODS A cross-sectional study was carried out to assess the need for clinical periodontal treatment, based on National Oral Health Survey (SB Brasil 2010) data on the presence of dental calculus, shallow (3-5 mm) and deep (≥ 6 mm) periodontal pockets...

OBJECTIVES The aim of the study was to investigate the clearance of PVP-iodine applied as a gel or solution in periodontal pockets. METHODS Teeth of 12 subjects with at least eight periodontal pockets of �5 mm probing depth were isolated with a rubber dam to allow contamination-free access to the pockets. In each subject, three pockets were filled with PVP-iodine gel (10%) and three with PVPiod...

The intrinsic ability of protein structures to exhibit the geometric and sequence properties required for ligand binding without evolutionary selection is shown by the coincidence of the properties of pockets in native, single domain proteins with those in computationally generated, compact homopolypeptide, artificial (ART) structures. The library of native pockets is covered by a remarkably sm...