OBJECTIVES The purpose of this study was to investigate the difference in optical appearance of the soft tissues labial to dental implants and to analyze the effects of titanium implant neck colors transmitted through the marginal mucosa. MATERIALS AND METHODS Fourteen patients with 15 Straumann single implant replacements in the maxillary anterior region were recruited. Color measurements of...

The aim of this study was to investigate relationships between soil properties and plant species to determine the most effective factors separating vegetation communities in Rineh rangeland. Three stratifying variables were selected including slop, aspect and elevation. The study area was partitioned by combining these classes to generate homogenous units. 1m2 quadrates were located at sampling...

This paper presents an experimental study on the catalytic methane combustion (CMC) in plate-type microreactors with wall-coated Pt/γ-Al2O3 catalyst. Firstly, influence of different operational conditions and coating properties CMC straight parallel-channel microreactor has been investigated. A specific catalyst loading 57.6 g m−2 was found to yield highest conversion over 3.5 wt% Pt/γ-Al2O3. h...

Cement-based materials are fundamental resources used to in construction. The increase in requests for and consumption of cement products, especially in Iran, indicates that more cement plants should be equipped. This study developed a geographical information system using pairwise comparison based on grey numbers to identify potential sites in which to set up cement plants. A group of five exp...

The study comparatively assessed the impacts of farm activities on the abundance and diversity of soil arthropods and soil physico-chemical parameters of the Practical Year Training Programme (PYTP) farmlands, University of Ibadan, South Western Nigeria. Soil arthropods were collected from September, 2010 to February, 2011 in five sampling sites of PYTP farmlands using Berlese Tullgren Extracti...

background : the most part of iran become malaria-free region and fall in prevention of re-introduction stage. these regions however are struggling with imported of malaria cases where malaria vectors exist. therefore, understanding the situation of mosquito vectors is crucial. this study was carried out to find out the present situation of malaria vectors and malaria transmission potential in ...

ectoparasites of various species of rodents were examined from sarepole zehab, kermanshah province iran during 2005. this city is bordered with iraq. a total of 139 rodents included 6 species of hosts were captured during all different seasons and examined for ectoparasites using live trap. the area of study was mainly plateu (70%) and mountanous. the hosts including: microtus socialis, mus mus...