In this cross-sectional study, 932 school boys and 927 school girls,6-10 years old of Khorramabad, Lorestan were selected randomly by proportionate multi-stage cluster sampling method. All students underwent clinical examination for presence of Goiter with the method and criteria recommended by world health organization ( WHO). Age specific prevalence rates of Goiter in boys 6 through 10 yea...

Deep Neural Networks are generally trained using iterative gradient updates. Magnitudes of gradients are affected by many factors, including choice of activation functions and initialization. More importantly, gradient magnitudes can greatly differ across layers, with some layers receiving much smaller gradients than others. causing some layers to train slower than others and therefore slowing ...

There are many distributed systems which use a leader in their logic. When such systems need to be fault tolerant and the current leader suffers a technical problem, it is necesary to apply a special algorithm in order to choose a new leader. In this paper I present a new fault tolerant algorithm which elects a new leader based on a random roulette wheel selection.

A new probabilistic methodology for transmission expansion planning (TEP) that does not require a priori specification of new/additional transmission capacities and uses the concept of social welfare has been proposed. Two new concepts have been introduced in this paper: (i) roulette wheel methodology has been used to calculate the capacity of new transmission lines and (ii) load flow analysis ...

This paper presents a new selection method for Genetic Algorithms based upon the concepts of the Evolutionary Game Theory, enabling individuals to compete for available resources. Hence they have the possibility to alter their adaptability and as an effect, assume an influential role on the generation of offspring. The results of some simulations of this technique are presented and compared wit...

The term “physical development and land use” was primarily raised in the Western countries so that governments could monitor the way the land is used and to maintain property rights. However, with rapid growth of urbanization and development of urban and regional planning the dimensions and the contents of the concept have expanded day by day. The central and practical core of urban planning is...

As an economy experiences high growth rates, some sections of the population enjoy a more than proportionate rise in income. This leads to an increased allocation of resources towards the production of luxury goods. Since the production of luxury goods often requiresmore resources than the production of necessary goods, itmay reduce not only the production of necessary goods, but also total pro...

We propose novel adaptive filtering algorithms based on the mean-fourth error objective while providing further improvements on the convergence performance through proportionate update. We exploit the sparsity of the system in the mean-fourth error framework through the proportionate normalized least mean fourth (PNLMF) algorithm. In order to broaden the applicability of the PNLMF algorithm to ...