The aim of this research is the critical analysis of the social representation of schistosomiasis in an endemic area in the State of Espírito Santo, Brazil. The results are presented in three papers in order to allow for an in-depth explanation of the interrelationship and conditionings related to the ways in which the population perceive schistosomiasis. This paper approaches the representatio...

Selection of an appropriate sample size is one of the most important aspects of any quality inspection. Th e right sample size enables making valid conclusions about the quality of the product with minimum necessary resources. Th e choice of sample size and the probability of Type II error (ß) are closely connected. Th e purpose of this paper is to examine how usage of a statistical power analy...

We introduce a deterministic chaotic system—the Szilard Map—that encapsulates the measurement, control, and erasure protocol by which Maxwellian Demons extract work from a heat reservoir. Implementing the Demon’s control function in a dynamical embodiment, our construction symmetrizes Demon and thermodynamic system, allowing one to explore their functionality and recover the fundamental trade-o...

The purpose of this study is to investigate the factors affecting the evaluation of the quality of voluntary disclosure, given that the factors used in internal research due to having an external source and focusing on the number of disclosures may not be an appropriate criterion for measuring the quality of information disclosure, so, it is necessary to provide new influencing factors on the e...

background: similar to the thermoluminescence (tl) spectra, the optical parameters variations can also be used in tl crystals for dosimetry purposes. these optical parameters can include absorption, transmission and reflection coefficients. materials and methods: single crystals of kbr and kcl which have been used in this research were grown from laboratory grade extra pure precursor powders. c...

We consider the Dirichlet Laplacian in a domain two three-dimensional parallel layers having common boundary and coupled by a window. The window produces the bound states below the essential spectrum; we obtain two-sided estimates for them. It is also shown that the eigenvalues emerge from the threshold of essential spectrum as the window passes through certain critical shapes. We prove the nec...

In this paper, three techniques to obtain capped magnetite nanoparticles were compared. In the formation of magnetite nanoparticles via the co-precipitation route, capping agents were introduced pre-, simultaneously with, or post-addition of the precipitating agent, ammonia. The amino acids L-glutamine and L-glutamic acid were used as the capping agents. Characterization via TEM, pXRD, EDX, and...

Design considerations and experiments have been made for obtaining a new type of active microvalves using silicon buckled membranes. The properties of the buckled membranes permitting to obtain high deflections and to actuate them more convenient are demonstrated. A thermal actuation using an aluminium ring layer heated with a polysilicon resistor is analysed. The polysilicon and the aluminium ...

abstract erosion and sedimentation are the most complicated problems in hydrodynamic which are very important in water-related projects of arid and semi-arid basins. for this reason, the presence of suitable methods for good estimation of suspended sediment load of rivers is very valuable. solving hydrodynamic equations related to these phenomenons and access to a mathematical-conceptual model ...