A mobile ad-hoc network (MANET), a set of wirelessly connected sensor nodes, is a dynamic system that executes hop-by-hop routing independently with no external help of any infrastructure. Proper selection of cluster heads can increase the life time of the Ad-hoc network by decreasing the energy consumption. Although different methods have been successfully proposed by researchers to tackle...

Introduction: Asthma and obesity are among diseases that cause several problems and impair quality of life.  The concurrence of these diseases, changes in the respiratory physiology, changes associated with obesity and limited activity associated with asthma may cause an interaction between the two conditions. Materials and Methods: We studied the epidemiologic characteristics of all recentl...

this study aims to investigate the quality of life (qol) of tehran university of medical sciences' (tums) medical students at different educational levels and specify the most important factors related to this quality. a sample of 242 medical students was selected randomly, given their number in three educational levels (basic sciences, physiopathology-stager and intern). the qol was measured b...

A prospective study of 65 patients with perforated typhoid enteritis managed operatively over a 3 year period at a university hospital is presented. There were 45 males and 20 females with ages ranging from 5 to 15 years. Presenting symptoms were fever, abdominal pain, vomiting and either diarrhoea or constipation. All the patients were subjected to surgery and 56 (86%) underwent two-layer bowe...

A mobile ad-hoc network (MANET), a set of wirelessly connected sensor nodes, is a dynamic system that executes hop-by-hop routing independently with no external help of any infrastructure. Proper selection of cluster heads can increase the life time of the Ad-hoc network by decreasing the energy consumption. Although different methods have been successfully proposed by researchers to tackle...

Background and Aim: One of the most basic and important condition and goals in providing health services is to prevent harm to the patient and endanger his safety as a result of providing health services .safety is reduction of the risk of unnecessary injury to a minimum acceptable level compared to other treatments or failure to seek treatment. Safe nursing care has 4 dimensions including nurs...

background: studies have shown that nurses are under considerable job stress, which can lead to health disorders and failure in duties. stressors of nursing have been studied in some of quantitative studies; however, a few investigators have studied the nurses’ life experiences in this regard. the current qualitative research aimed to understand the nurses’ experiences and perceptions of job-re...

background: assessment of quality of life can promote health services. the purpose of this study was evaluation of health related quality of life in lower limbs amputee veterans of iran. methods: in the present cross sectional study, we compared 38 lower limbs amputee veterans with 50 normal healthy subjects with sf36 questioner in face-to-face interview. results: amputees had significantly low...