as the main element of economy, human being has requirements the main one of which is the need for food security and healthy nutrition. unfortunately, in the iranian society there are two groups of people who do not enjoy food security. these groups include people who either do not have the financial means to provide healthy and nutritious food or those who, despite having the financial means, ...

purpose: considering the important role of rural women in food security, the main purpose of this study is to study the rural women's empowerment in improving household food security. method: the research data was collected through questionnaires filled out by rural married women in divandareh county. based on random sampling, 213 of them were selected. the validity of questionnaire was confirm...

This paper studies the impact of an unfunded social security system on the distribution of bequests in a framework where savings are due both by life cycle and by random altruistic motivations. We show that the impact of social security on the distribution of bequests depends crucially on the importance of the bequest motive in explaining savings behavior. If the bequest motive is strong, then ...

We introduce bundle-free triangulations, that are free of large collection of triangles overlapping a circle empty of vertices. We prove that bundle-free Steiner triangulations can be used as an approximate solution for the minimum weight Steiner triangulation problem. We present new algorithms, implementations and experimental study for computing minimum weight Steiner triangulations.

While a lot has changed in Internet security in the last 10 years, a lot has stayed the same – such as the use of alphanumeric passwords. Passwords remain the dominant means of authentication on the Internet, even in the face of significant problems related to password forgetting and theft. In fact, despite large numbers of proposed alternatives, we must remember more passwords than ever before...