the efficient detection of charged biomolecules by biosensor with appropriate semiconducting nanomaterials and with optimum device geometry has caught tremendous research interest in the present decade. here, the performance of various label-free electronic biosensors to detect bio-molecules is investigated by simulation technique. silicon nanowire sensor, nanosphere sensor and double gate fiel...

in order to evaluate the different photoperiod and temperature sensitive pre-flowering phases in two cumin landraces a raciprocal transfer experiment from photoperiod 8 h to 16 h and vice versa under two different day/ night temperatures 20/10 and 30/20 ˚c was conducted. two model including ellis and adams were used to analyse the data and to quantify the duration of different developmental pha...

objective: shigellosis is one of the most common causes of morbidity and mortality in children with diarrhea in developing countries. it is essential to assess the antibiotic resistance patterns of these bacteria. ipah gene is one of the virulence factors which can be used for detection of shigella spp. materials and methods: total of 100 isolates of shigella were collected from different prov...

background and objectives:infection of pleural fluid is a common disease and because of antibiotic administration, the microbiology of this fluid has changed. the aim of this study was to determine the common bacteria and suitable antibiotics for treatment in pleural effusion (pe). materials and methods: in this cross sectional study, 1210 samples with exudative features were cultured for poss...

introduction amblyopia is a leading cause of visual impairment in both childhood and adult populations. our aim in this study was to assess the epidemiological characteristics of the amblyopia screening program in iran. materials and methods a cross-sectional study was done on a randomly selected sample of 4,636 iranian children who were referred to screening program in 2013 were participated i...

sensitivity analysis might be considered as one of inevitable steps in modelling since it would help to determine the behaviour of model, which was developed for further application. sensitivity analysis was not paid much attention in studies that have been conducted for modelling the relationship between stream water quality and land cover except machine learning techniques such as artificial ...

background in 1996, donovan and colleagues represented a scoring system for better prediction of hirschsprung disease (hd). objectives our objective was to devise another scoring system that uses a checklist of radiologic and clinical signs to determine the probability of hd in suspicious patients. patients and methods in a diagnostic accuracy study, 55 children with clinical manifestations of ...

in endemic area the most challenging problem for brucellosis is to find a reliable diagnostic method. in this case-control study, we investigated the accuracy of elisa test for diagnosis of human brucellosis and determined the optimal cut-off value for elisa results in iran. the laboratory diagnosis of brucellosis was performed by blood isolation of brucella organism with a bactec 9240 system a...

objectives: this study aimed to assess the effect of voxel size and object location in the field of view (fov) on diagnostic accuracy of cone beam computed tomography (cbct) for detection of simulated bone defects. materials and methods: in this in vitro study, bone defects were drilled in four sections of a dry human mandible. bone blocks were fixed on a platform parallel to the horizontal pla...

this study was undertaken to determine the antibiotic sensitivity of 686 strains of hemolytic streptococci isolated at the school of public health, divi­sion of streptococcal studies, to five antibiotics in vitro. all of the strains were sensitive to penicillin, erythromycin, chloramphenicol and ampicillin. 27 (4%) of the strains, were resistant to tetracyclin. the clinical implications of this...