The class of regular languages is not identi able from positive data in Gold's language learning model. Many attempts have been made to de ne interesting classes that are learnable in this model, preferably with the associated learner having certain advantageous properties. Heinz '09 presents a set of language classes called String Extension (Learning) Classes, and shows it to have several desi...

Among the professional skills necessary in training of nursing students, there is that associated with working health services. In this context training, participation university extension programs increases learning possibilities and allows approximation theoretical-practical experience, providing activities for benefit community. The objective article to report experiences project “Innovative...

The forty-year history of agricultural production co-operatives in Iran shows that this type of exploitation system has faced with many challenges during this period. First, despite the help and support by the government, the co-operative sector has not been able to play a major role in the development of the country, and its share has not exceeded 3% of the development program. The Purpose of ...

agricultural extension workers’ service has been placed as the central pattern of agricultural transformation in general and smallholder farmers in particular. due largely to this commensurately known trend, identifying factors that determine farmers’ access to extension workers’ service and the effect of the service on crop yield was found to be imperative. cross sectional data was collected t...

Rangelands renewable resources play a very important role in ecosystem regulating, preserving plant genetic reservoirs, water cycle as well as providing large parts of forage requirements. These resources were considered to be a basis for sustainable development and also a basic platform for various economic activities. During the recent years in Iran, these valuable sources were subjected to s...

This paper aims to study the role of women in agricultural promotion and its effect on rural development. Research method in this study was based on a survey and the required information was collected through questionnaire from a sample of women especially rural women. The data were analyzed using Logit model. The results showed that women had a major role in farming including producion, conser...