background: child health questionnaire (chq) is one of the most widely used measures for health related quality of life. the present study examined the psychometrics characteristics of persian version of chq for students. methods: 800 primary and secondary school students were selected with multistage randomly sampling from state schools. the questionnaire was adapted employing the translation ...

background: the present study aimed to translate and evaluate the reliability and validity of the persian version of the 11-item intermittent and constant osteoarthritis pain (icoap) measure in iranian subjects with knee osteoarthritis (koa). materials and methods: the icoap questionnaire was translated according to the manufacturers alliance for productivity and innovation (mapi) protocol. the...

In many Internet scale replicated system, not all replicas can be dealt with in the same way, since some will be in greater demand than others. In the case of weak consistency algorithms, we have observed that updating first replicas having most demand, a greater number of clients would gain access to updated content in a shorter period of time. In this work we have investigated the benefits th...

We show that all consistent learning methods—i.e., that asymptotically achieve the lowest possible expected loss for any distribution on (X,Y )—are necessarily localizable, by which we mean that they do not significantly change their response at a particular point when we show them only the part of the training set that is close to that point. This is true in particular for methods that appear ...

Interval constraint solvers use local consistencies— among which one worth mentioning is box consistency— for computing verified solutions of real constraint systems. Though among the most efficient ones, the algorithm for enforcing box consistency suffers from the use of timeconsuming operators. This paper first introduces boxφ consistency, a weakening of box consistency; this new notion then ...

Most work on temporal interval relations and associated automated reasoning methods assumes linear (totally ordered) time. Although checking the consistency of temporal interval constraint networks is known to be NP-hard in general, many tractable subclasses of linear-time temporal relations are known for which a standard O(ns) constraint propagation algorithm actually determines the global con...

Existing memory models and cache consistency protocols assume the memory coherence property which requires that all processors observe the same ordering of write operations to the same location. In this paper, we address the problem of de ning a memory model that does not rely on the memory coherence assumption, and also the problem of designing a cache consistency protocol based on such a memo...

Data caching is a well-understood technique for improving the performance and availability of wide area distributed applications. The complexity of caching algorithms motivates the need for reusable middleware support to manage caching. To support diverse data sharing needs effectively, a caching middleware must provide a flexible consistency solution that (i) allows applications to express a b...

sludge drying bed is preferred to mechanical methods due to the need for very simple technology. due to restriction of natural dewatering, we tried to eliminate some of these limitations by the tests and studies of assumptions. in this study, the effect of hydrostatic suction and sludge chemical conditioning has been studied in the natural sludge dewatering optimization. at first, hydrostatic s...

one of the great events in the history of iran is the emergence and spread of islam within the early hegira centuries.  the result of the interaction between islam and iran was transformations in many cultural dimensions and indices. this research states the problem of the islamization of iranian lifestyle andthe culture of purity and impurity, in particular.in this article,interpretive-analyti...