A coherent study of tuning properties of resonantcap IMPATT oscillator at Ka-band has been carried out by mechanical and electronic means. It is experimentally observed that output power of IMPATT oscillator passes through a maximum, with an optimum combination of cap diameter and cap height. An empirical relation is obtained between cap diameter and wavelength of the optimised resonant cap osc...

We have studied the effect of the 5' cap structure on the splicing of precursor mRNAs containing three exons and two introns within a single molecule in a HeLa nuclear extract. When a precursor mRNA was capped, the upstream intron was spliced out more efficiently than the downstream intron. The differential splicing reactions of the two introns are not due to differences in the intrinsic effici...

background self-inflicted burn injuries carry considerable mortality and morbidity among otherwise fit young individuals. this study assessed the epidemiologic pattern and outcome of these injuries in a burn care facility in pakistan. methods the study was carried out at pakistan institute of medical sciences (pims) burn care centre in islamabad over a period of 2 years. it included all adult p...

OBJECTIVE In the USA, a group of low-risk patients with community-acquired pneumonia (CAP) with a low risk of mortality were identified and it was suggested that they may be treated as outpatients to save costs. We evaluated the outcome of these low-risk CAP patients that were hospitalized in our local setting, and gauged the number of such patients in order to estimate the potential cost-savin...

BACKGROUND Publication of scientific research papers is important for professionals working in academic medical centres. Quantitative measures of scientific output determine status and prestige, and serve to rank universities as well as individuals. The pressure to generate maximum scientific output is high, and quantitative aspects may tend to dominate over qualitative ones. How this pressure ...

BACKGROUND Metallo-β-lactamase (MBL)-producing Pseudomonas aeruginosa is a significant pathogen in burn patients. OBJECTIVES The aim of this study was to determine the prevalence of carbapenem-resistant P. aeruginosa isolates, including those resistant to imipenemase (IMP), in a burn unit in Isfahan, Iran. PATIENTS AND METHODS One hundred and fifty P. aeruginosa isolates from burn patients ...

BACKGROUND AND OBJECTIVES Antibiotic resistance of Pseudomonas aeruginosa remains a major problem in burn patients. The main objective of this study was to determine the antibiotic resistance pattern and frequency of class 1 integrons among P. aeruginosa strains isolated from patients with burn wound infections in a new Burn Centre in Guilan, Iran. MATERIALS AND METHODS The bacterial isolates...

objective(s): the aim of the present study is to determine the effect of chloramphenicol (cap) on rat liver and small intestine. effect of phenobarbital (pb) on cap toxicity was also investigated.   materials and methods:   rats were received cap at doses of 0, 200, 400 and 600 mg/kg. another group was pretreated with 80 mg/kg pb 30 min prior to administration of various doses of cap. the exper...

BACKGROUND Pseudomonas aeruginosa remains a leading cause of severe wound infection and mortality in burn patients. OBJECTIVES The current study aimed to determine the prevalence of Ambler class A and D β-lactamases among P. aeruginosa isolated from infected burn injuries in Tehran, Iran. PATIENTS AND METHODS Bacteriological samples were taken from burn patients with clinical symptoms of bu...