scientists are interested in find out “how to use living resources without damaging the ecosystem at the same time?” from nineteen century because the living resources are limited. thus, the harvested rate is used as the control parameters. moreover, the study of harvested population dynamics is more realistic.    in the present paper, some predator-prey models in which two ecologically interac...

television viewing (tv) is associated with an in-creased risk of type 2 diabetes, cardiovascular dis-eases, and all-cause mortality (1). in particular, ex-cessive tv viewing was found to be more preva-lent among older adults aged over 55 years than among younger age groups (2). moreover, it has been emphasized the importance of identifying at-risk populations with excessive tv viewing time and ...

Accurate localization of people in indoor and domestic environments is one of the key requirements for ambient assisted living (AAL) systems. This chapter describes how the received signal strength (RSS) measurements collected by a network of static radio transceivers can be used to localize people without requiring them to wear or carry any radio device. We describe a technique named radio tom...

Ambient Assisted Living systems (AAL) must fulfill several challenging requirements as, for instance, the ability to render their services at a quality level that is high enough to enable an independent living. This requires a sound understanding of the current situation of the users, their environment, and, the availability of required resources. Further, AAL systems need the ability to adapt ...

methodsusing time series data of national level (1967 to 2012 years), we explored the association between total fertility rate, gdp per capita, number of physician per 1000 populations, female labor force participation rate, percentage of people living in rural regions and mean years schooling for each people with infant mortality rate of iran. these data were obtained from central bank of isla...

The development of interactive technology is often based on the assumption of need to reduce the physical action and cognitive load of the user. However, recent conceptualizations, supported by research in various fields of science, emphasize human physical action in cognitive processes and knowledge formation. In fact, physical and closely related imaginary movement can be seen as the quintess...

We consider the following decision problems: PROOFNET : Given a multiplicative linear logic (MLL) proof structure, is it a proof net? ESSNET : Given an essential net (of an intuitionistic MLL sequent), is it correct? In this paper we show that linear-time algorithms for ESSNET can be obtained by constructing the dominator tree of the input essential net. As a corollary, by showing that PROOFNET...

There are more than 11 million elderly Americans living alone. They belong to a latent risk population that will have emergency situations on a frequent basis. Thus, latent risk populations require constant monitoring. There are many current devices that assist the elderly, but they are not real-time, accessible, or particularly effective. We present a design of novel technology for healthy ind...