This study was aimed at assessment of sleep schedule, pre-sleep behavior, co-sleeping and parent's perception of sleep of school going children. METHOD Four schools each, from urban and rural area were included. Sleep patterns were assessed using the validated Hindi version of Childhood-Sleep-Habit-Questionnaire. Comparison was made between urban and rural group and between boys and girls. In...

as the collective settlement of the modern man, the city forms the physical background for the human life. the urban lifestyle involves a set of formal, multi dimensional relations, and the urban residents get in touch with the various components of this set in their everyday life. the process of the formation and transformation of the cities can affect the stages of the social identification o...

Traffic sign recognition is a difficult task if we aim at detecting and recognizing signs in images captured from unfavorable environments. Complex background, weather, shadow, and other lighting-related problems may make it difficult to detect and recognize signs in the rural as well as the urban areas. We employ discrete cosine transform and singular value decomposition for extracting feature...

In this paper we present an algorithm to build a road network map enriched with traffic rules such as one-way streets and forbidden turns, based on the interpretation of already detected and classified traffic signs. Such algorithm helps to automatize the elaboration of maps for commercial navigation systems. Our solution is based on simulating navigation along the road network, determining at ...

In this project we study selecting of robust method to detect and recognize stop signs in an urban area. To tackle this problem we tries three different method, and the experiment showed that the two of the tree methods are promising to continue working on. The first method was HAAR features combined with Decision Trees which didn’t work well in tests. The second approach was using HOG with log...

This paper describes a system for generating virtual reality environments and, more specifically, three-dimensional geometric models of large-scale urban areas for driving instruction simulators. These models include roads, buildings, road signs and road markings. Such models also find application in other training simulators, virtual reality environments and games.

The change of land use/land cover has been known as an imperative force in environmental alteration, especially in arid and semi-arid areas. This research was mainly aimed to assess the validity of two major types of land change modeling techniques via a three dimensional approach in Birjand urban watershed located in an arid climatic region of Iran. Thus, a Markovian approach based on two suit...

HomeRadiologyVol. 299, No. 1 PreviousNext Reviews and CommentaryFree AccessEditorialThe Potential of Artificial Intelligence to Analyze Chest Radiographs for Signs COVID-19 PneumoniaBram van Ginneken Bram Author AffiliationsFrom the Department Radiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, Netherlands.Address correspondence author (e-mail: [email prot...