abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...

This paper focuses on the role of uncertainty about the number of surviving children. The survey discusses the effects of declining mortality rates on fertility, education and economic growth. The construction of the paper is an OLG model in which individuals make choices about fertility decision over their lifetimes subject to uncertainty about the immortality. The simulation of model using ac...

Objectives Over the past few decades, Iran has faced rapid demographic changes, including a sharp decline in birth rates and increased life expectancy. This has led to an increase in the average age of the population and an increase in the percentage of the elderly people which is called “the phenomena of aging”. The occurrence of this phenomenon in Iran is rapidly increasing, and therefore the...

1.1 introduction “i see translation as the attempt to produce a text so transparent that it does not seem to be translated. a good translation is like a pane of glass. you only notice that it’s there when there are little imperfections- scratches, bubbles. ideally, there shouldn’t be any. it should never call attention to itself.” “norman shapiro” (venuti, 1995:1) edward fitzgerald is the br...

Background and Aims: Population aging is one of the most important economic, social and health challenges of the twenty-first century. The increasing rate of aging in the population will increase the risk of households being confronted with catastrophic health expenditure (CHE). The purpose of this study was to determine the effect of aging on households' CHE in Iran. Materials and Methods: Th...

introduction acetic acid bacteria are large group of obligate aerobic gram negative bacteria with the ability to oxidize ethanol to acetic acid (1). they are widely distributed in natural habitats and classified in family acetobacteraceae. members of this family are useful in industrial production of vinegar(2). acetic acid bacteria (aab) can use substrates as glucose, ethanol, lactate or glyc...