In recent years faecal blood loss due to ingestion of acetyl salicylic acid (ASA) has been demonstrated by various authors, both by chemical methods such as the benzidine reaction, and by physical methods with erythrocytes labelled with radioactive substances. Stubbe (1958) reported occult faecal blood loss in 70 per cent. and Alvarez and Summerskill (1958) in 50 per cent. of patients and healt...

Health gap measures, such as the DALY, are a quantification of the gap between the current health status in a population and a stated goal for population health. This goal can be understood as an ideal situation in which everyone in a population lives into old age free of disease. Health gaps are the addition of time lost due to premature mortality, as measured against the normative survivorshi...

Imprecision in probability values (represented through credal sets) allows a more realistic modelling of uncertainty in decision problems. Uncertainties often lead to partially ordered preferences and, consequently, different criteria of choice may be taken into account. In this paper, we present an algorithm that evaluates an extended version of influence diagrams, where chance variables repre...

Calculated parameters (soil layer resistivity, soil thickness, and the number of layers) horizontally layered are usually obtained based on measured apparent resistivity under different measurement distances, which significant for design, operation, maintenance grounding grids. Most existing calculation methods just trying to make results approach data, ignoring relationship among calculated pa...

s is a time-frequency transform based on the concept of short-time fourier transform and wavelet transform. the main property of this transform that separate it from the discrete short-time fourier transform is variable frequency resolution. but in this transform the change of resolution of high frequencies to low frequencies is very high. so another transform as a modified s transform is intro...

Anaerobic bioreactors have been developed to remove perchlorate from water, but backwashing and operational interruptions can expose biofilms to oxygen. While it is well known that oxygen is a preferential electron acceptor to perchlorate for perchlorate-respiring bacteria, little is known about the effect of oxygen exposure or redox potentials on perchlorate reduction. Four different dissolved...

in recent year, the evolutionary structural optimization (eso) method, has been applied as an effective tool for structures design. the concept of eso method is to use the finite element  results in each iteration of process and removal of inefficient material based on these results. in this method there are several experimental parameters such as rejection rate and evolutionary rate that are e...