conventional agriculture systems of production often lead to environmental degradation, economic problems and even social conflict. the efficacy of agriculture systems conducive to the economic, environmental and social sustainability of farming operations has been demonstrated, yet the adoption of sustainable agricultural practices is not widespread. this study evaluates the barriers of sustai...

background: universities are the most important setting for science production and organizing academic research is one of the most effective strategies in society development. this research was performed to determine the research barriers from the viewpoint of isfahan university of medical sciences faculty members. methods: this descriptive study was conducted in 2008.faculty members on isfahan...

objectives: cerebral palsy is the most common type of permanent movement and posture disorder in children leading to activity limitations. children's participation is influenced by their functional ability, skills, interests, and environmental factors. the objective of the study was to describe parent perception of environmental barriers to participation of children with cerebral palsy. me...

background: iran is one of the countries with considerable road traffic injuries.  pre-hospital interventions have an important role in preventing mortalities and disabilities caused by traffic accidents.the present study aimed to explore the barriers of pre-hospital care in traffic injuries in tehran, iran. methods: a qualitative content analysis approach was conducted based on 21 semi-structu...

underwater acoustic wireless sensor network (uawsn) use acoustic signalsto transmit data. acoustic signals in underwater environment have high bit errorrate, long propagation delay and limited bandwidth. another constraint in uwasnis energy. due to these constraints, design of energy and bandwidth efficient andpropagation delay aware mac protocol is a great challenge in uwasn.underwater sensor ...

background:  physical activity is a complex behavior. to designing the effective intervention, qualitative researches may be allowed for greater understanding of the reasons behind the adolescences’ physical activity‑related behaviors’. methods: using the grounded theory approach, including semi‑structured focus group discussions  (fgds) and in‑depth interviews, we conducted a quantitative stud...

introduction: teaching is one of the main components in educational planning which is a key factor in conducting educational plans. despite the importance of good teaching, the outcomes are far from ideal. the present qualitative study aimed to investigate effective teaching in higher education in iran based on the experiences of best professors in the country and the best local professors of i...

introduction: the integration of behavioral and social sciences (bss) into the curriculum of medical students in order to equip them with the necessary knowledge, skills and attitudes is an essential issue, emphasized in many researches. our aim is to investigate the barriers to integrate bss into the general medicine curriculum as well as the recommended strategies to overcome such barriers th...

context this literature review mostly emphasizes on the challenges and barriers for acceptance and implementation of electronic health records (ehrs) in developing countries. although the willingness of developing countries for acceptance and implementation of ehrs is rising, they will face some challenges and barriers which can slow down their progress due to the multidisciplinary and complexi...

The results of numerical modeling of sonic crystals with resonant array elements are reported. The investigated resonant elements include plain slotted cylinders as well as their various combinations, in particular, Russian doll or Matryoshka configurations. The acoustic band structure and transmission characteristics of such systems have been computed with the use of finite element methods. Th...