this is an observational case series study on penetrating trauma admissions in three teaching hospitals in tehran from 1996 to 1997. in order to describe the epidemiology and determine the ways of improving treatment of penetrating injuries, we selected 410 patients with penetrating injuries and injury severity scores (iss) of more than 7 (the maximum iss is 75) out of 3580 trauma patients, hos...

context celiac disease (cd) is defined as a permanent intolerance to ingested gluten. the intolerance to gluten results in immune-mediated damage of small intestine mucosa manifested by villous atrophy and crypt hyperplasia. these abnormalities resolve with initiationa gluten-free diet. evidence acquisition pubmed, ovid, and google were searched for full text articles published between 1963 and...

inhalation of fungal spores is shown to participate in the development of allergic rhinitis symptoms. in this study, relation between presence of alternaria in the human nasal cavity and allergic rhinitis is assessed. in a case-control study, 58 allergic rhinitis patients were compared with a well-matched control group of fifty healthy volunteers for sensitization to alternaria (by skin prick t...

conclusions it seems that considering the clinical examination of patients before sa focusing on lumbar spinous process status, presence of lumbar deformity, calculation of bmi and radiological signs of lumbar vertebrae can be helpful in predicting sa difficulty. results hundred and one patients were enrolled. of these patients, 50 (49.5%) underwent sa by the first attempt of the first space, i...

it seems that endometriosis plays an important role in female factor infertility but a clear causal relationship has yet to be established. this case-control study was conducted to determine and compare the frequency and severity of endometriosis in 100 infertile women and 120 fertile multi-para women as control group. descriptive statistics, student t test and chi square test were used in anal...

in this study, we evaluated the relationship between rhinosinusitis to the severity of asthma in asthmatic patients. this cross-sectional study was conducted on 90 patients with asthma referring to imam khomeini hospital in ardabil city. asthma control stepping method was used for staging of asthma severity. patients' clinical signs and paraclinical findings were individually evaluated and comp...

we investigated the association between serum 25(oh) d levels and depressive symptoms in patients with major depressive disorder (mdd).eighty-five adults, 44 drug free patients with mdd and 41 apparently healthy controls, participated in the study. the hamilton depression rating scale was used to assess severity of major depression. mental health of the controls was assessed according to dsm-iv...

A class of trust-region methods for large scale bound-constrained systems of nonlinear equations is presented. The methods in this class follow the so called affine-scaling approach and can efficiently handle large scale problems. At each iteration, a suitably scaled region around the current approximate solution is defined and, within such a region, the norm of the linear model of F is trusted...