Anonymous communication is useful in variety of online applications. Evoting, online chat software and data collection for surveying are some of the applications where anonymity is an important feature. One way to guarantee anonymous network communication is using a mix network (mix-net) protocol. A mix network is a protocol that contains several mix servers. A mix server collects user’s cipher...

In 14 mongrel dogs, refractory periods were determined in nonischemic and acutely ischemic zones of myocardium during control conditions, 15 minutes after coronary ligation, and 10 and 20 minutes after a procainamide infusion. Following coronary ligation, refractory periods in the nonischemic area remained unchanged (100.8% of control) while in the ischemia area they decreased to 88.6% of contr...

In this paper we present a protocol for unlinkable and anonymous communication in multi hop wireless networks. There exist solutions for unlinkable communication in the internet, such as Tor and Mix networks. These protocols need fixed infrastructure and they are prone to traffic analysis attacks, i.e. where an attacker tries to map communicating devices by performing statistical analysis. Wire...

Traditionally, there are two methods to implement anonymous channels: free-route networks like onion routing and cascade networks like mix network. Each of them has its merits and is suitable for some certain applications of anonymous communication. Both of them have their own drawbacks, so neither of them can satisfy some applications. A third solution to anonymous channels, Klein bottle routi...

Plant species diversity may benefit natural grassland productivity, but its effect in managed grassland systems is not well understood. A four-year multispecies grassland experiment was conducted to investigate the effect of species diversity-legumes and non-leguminous forbs-on productivity, persistence and sward quality under cutting or grazing regimes and with or without slurry application. T...

Sesquiterpene lactone mix detects contact allergy to these compounds present in the plant family Asteraceae. This marker is present in many baseline series. An additional marker is Compositae mix, which is not present in many baseline series. To investigate whether this allergen should be inserted into the Swedish baseline series, six dermatology centres representing the Swedish Contact Dermati...

patients and methods in this cross sectional study, 295 volunteers with the signs and symptoms of allergic diseases who referred to the khuzestan jahad daneshgahi medical center in ahvaz during 2010 were investigated. all patients were subjected to skin prick test (spt) with common allergenic extracts. data were analyzed by spss-18 software using chi square test. results seventy subjects, compr...

The impact of computer aided interview on data quality has been systematically evaluated by statistical institutes in diverse countries. This work aims to show the importance of field observation in the evaluation of computer assisted data collection. The method shown here was proposed to be applied to the context of IBGE, the Institute of Brazil central administration that performs the Census....

The objective of this paper is to present a modeling procedure, based on the use of statistical methods, to develop predictive models for Information Technology (IT) capacity planning. The goal of these models is to be able to predict IT variables’ behaviour, using initial inputs provided by high-level business explanatory variables. The modelling process consists in two main sequences, explora...