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Resumo Introdução A periodontite é uma doença infecto-inflamatória, resultante da disbiose microbiana e resposta do hospedeiro, que leva à destruição dos tecidos de suporte dentário, inclusive das fibras colágenas periodontais, podendo culminar na perda elemento dental. Objetivo Avaliar o comportamento periodontais durante a progressão experimental induzida em ratos. Material método Doze ratos ...
Background: Toxic effect of alcohol and nicotine on the other organs of body has been proven to some extent. Effects of oral alcohol and subcutaneous nicotine co-administration on spermatogenesis in rat are the aim of this study. Materials and Methods: Thirty healthy Spauge-Dawley male rats (average weight 160-210 g) were randomly divided to 3 groups (n=10). The animals in the first group recei...
objective: the objective of this study was to investigate the invitro fluoride release of four new self-adhesive resin cements; set (sdi, australia), breeze (pentron, usa), embrace wetbond (pulpdent, usa), g-cem (gc, japan) and to assess the bonding performance of these self-adhesive resin cements for bonding of orthodontic brackets. materials and methods: for fluoride release experiment, six ...
Hitherto, phospho-rus oxonitride (PON) could not be obtained in the form of single crystals and only powder diffraction experiments were feasible for structure studies. In the present work we have synthesized two polymorphs of phospho-rus oxonitride, cristobalite-type (cri-PON) and coesite-type (coe-PON), in the form of single crystals and reinvestigated their crystal structures by means of in ...
the aim of the current study was to investigate the relationship among efl learners learning style preferences, use of language learning strategies, and autonomy. a total of 148 male and female learners, between the ages of 18 and 30, majoring in english literature and english translation at islamic azad university, central tehran were randomly selected. a package of three questionnaires was ad...
on this project we try to calculated power of hydrogen on dycarbonil compound in different ways ; the first way is shoster way , for sain power of hydrogen notice the different power between central conforms on it and main conform that’s didn’t have hydrogen joint . or in other way different of energy between open and close form. second way, is average way? this is for way that studied conf...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Received for publication 24 January 1969. INTRODUCTION The severity of the clinical manifestations of the different abnormal hemoglobins is varied. Many of these mutant proteins produce no discernible effect on the patient, while some cause a mild compensated hemolysis, and others are associated with severe hemolytic disease (1). The detection of an abnormal hemoglobin in many patients presenti...
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