BACKGROUND For disease surveillance, manual data collection using paper-based questionnaires can be time consuming and prone to errors. We introduced smartphone data collection to replace paper-based data collection for an influenza sentinel surveillance system in four hospitals in Kenya. We compared the quality, cost and timeliness of data collection between the smartphone data collection syst...

We study tracing garbage collection (GC) for a distributed shared memory (DSM) in order to provide persistence by reachability (PBR), in a large-scale distributed system. Within a general model of DSM, we specify a distributed tracing GC algorithm that scales, collects cycles, and is orthogonal to coherence. Its main features are: (i) piecewise collection of opportunistically-chosen subsets of ...

Web usability testing and research presents challenges for accurate data collection. An instrumented browser solution, Uzilla, is compared with existing solutions, and its contributions to usability testing practice are noted. Uzilla implements a client-server architecture based on the open source Mozilla browser. Instrumentation of the browser facilitates the evaluation of Web sites and applic...

BACKGROUND Overuse of cranial computed tomography scans in children with blunt head trauma unnecessarily exposes them to radiation. The Pediatric Emergency Care Applied Research Network (PECARN) blunt head trauma prediction rules identify children who do not require a computed tomography scan. Electronic health record (EHR) based clinical decision support (CDS) may effectively implement these r...

A new approach to dengue vector surveillance based on permanent egg-collection using a modified ovitrap and Bacillus thuringiensis israelensis(Bti) was evaluated in different urban landscapes in Recife, Northeast Brazil. From April 2004 to April 2005, 13 egg-collection cycles of four weeks were carried out. Geo-referenced ovitraps containing grass infusion, Bti and three paddles were placed at ...

background: cancer is the third cause of death in iran and its incidence is rising alarmingly. however, a study reported that kohgilooyeh and boyerahmad (a small province in iran) seems to have substantially lower incidence rate of cancer compared to the other parts of the country. this study is conducted to investigate the epidemiological features of cancer regarding three key factors (sex, ag...

in this research the glir,s tooth remains from four caves and rockshelter sites in west and north west of iran have been reported. recent archaeological surveys and excavations by center for paleolithic research of national museum of iran and two other institutions, along other remains, have yielded rich assemblages of microvertebrate remains. the cave sites are yafteh, gar arjeneh and qalaloun...

The abundance and age structure of Anopheles albimanus populations were estimated by UV updraft light traps and human landing catches within villages and in nearby breeding sites of southern México. Four villages and 5 breeding sites were selected for the study. Light trap and human landing catches were simultaneously carried out in each breeding site and each village. Anopheles albimanus was t...

Maize landraces derived from tropical germplasm represent an important source of genetic variability, which is currently poorly understood and under-exploited by Brazilian crop breeding programs. The aims of our study were to a) estimate the genetic diversity across 48 varieties of maize landraces cultivated at different locations in the States of Rio Grande do Sul (RS) and Paraná (PR) by ...