conclusions the study findings highlight the importance of the mental aspect of fatigue in this working group. these results have possible implications for workers’ health and well-being and for the design of shift work systems, for industrial workers. background shift work is a well-recognized occupational health hazard in both industrialized and industrially developing countries. prolonged wo...

We give a polynomial time algorithm for computing the Igusa local zeta function Z(s, f) attached to a polynomial f(x) ∈ Z[x], in one variable, with splitting field Q, and a prime number p. We also propose a new class of linear feedback shift registers based on the computation of Igusa’s local zeta function.

A dynamic memory is a storage medium constituted by an array of cells and an interconnection network between them. It is characterized by the constant circulation of the stored data. The objective is to design the interconnection network in order to have small access times and a simple memory control. Several interconnection schemes have been proposed in the literature. This paper presents a qu...

Delft In this paper the problem of finding the absolutely shortest (possibly nonlinear) feedback shift register, which can generate a given sequence with characters from some arbitrary finite alphabet, is considered. To this end, a new complexity measure is defined, called the maximum order complexity. A new theory of the nonlinear feedback shift register is developed, concerning elementary com...

this text is a real-time description of an emergency medicine resident’s shift in an overcrowded emergency department (ed), tehran, iran.

the mössbauer spectra of nanoferrite materials such as ni0.25mn0.75fe2o4, co0.5mn0.5fe2o4 and ni0.4co0.6fe2o4 have been reported and the above materials were prepared by sol-gel combustion method using metal nitrates as source material and polyvinyl alcohol(pva) as agglomeration reducing agent. as the structural, thermal and magnetic properties (vsm) of the above ferrites have been published al...