We describe a matched case-control study investigating the association between respiratory illness and proximity of residence to main roads. The study was carried out in response to previously inconsistent reports on this question; the null hypothesis was of no association of traYc related air pollution to respiratory illness, hospital admissions for asthma and chronic obstructive airways disea...

Efforts to mitigate road effects are now common in new highway construction projects. For effective mitigation of road effects it is important to identify the species whose populations are reduced by roads, so that mitigation efforts can be tailored to those species. We conducted a meta-analysis using data from 75 studies that quantified the relationship between roads and/or traffic and populat...

Road traffic accidents account for approximately 3000 deaths on a daily basis, and 50 million injuries and 1.2 million deaths each year. In low-income and middle income countries, road traffic accidents account for 85% of deaths and 90% of annual disability. Casualties of this magnitude are a serious problem throughout the world and create a significant impact on society. In addition, neurologi...

The update of geodata is an important task in order to ensure a high level of data quality in Geographic Information Systems (GIS). Today, this work is carried out mostly manually by an operator, who compares possibly outdated vector data from databases with remotely sensed imagery and/or other current information. In this paper we present a system for automated update of road databases using d...

Actualization of cartographic data using imagery is an important application in the earth sciences. Extraction of map objects such roads from satellite imagery are an important task in many civilian and military applications. Particularly, extraction of these objects from digital imagery is of major practical importance for data acquisition and update of geographic information systems GIS datab...

OBJECTIVE This study sought to extend previous analyses of food insecurity in Montreal by examining the relationship between neighbourhood sociodemographic and urban form variables and sources of food both unhealthful (fast-food outlets, FFO) and healthful (stores selling fruits and vegetables, FVS). METHODS Densities of FFO and FVS were computed for 862 Census tract areas (CTA) (defined as c...

construction of forest roads disorders the natural trend of water movement. it is vital to make ditch and cross line drainage culvert to prevent the area from being destroyed and conduct the water of streems and vallies. determination of culvert diameters depends on the information of area discharge, physiographic characteristic, vegetation cover and site land use. in order to determine the amo...

Tracheobronchial foreign body (TFB) aspiration is rare in adults, although incidence rates increases with advancing age. We report a case of foreign body in left main bronchus in an adult female who had no risk factor. She was successfully treated with removal of betel nuts by bronchoscopy. Unusual presentation and high index of suspicion can help in proper management.

Mukoepidermoid karsinom nadir olarak trakeobronşiyal ağaçta yerleşen malign bir tümördür. Mukoepidermoid karsinomlar düşük evreli tümörler olmalarına rağmen, cerrahi olarak çıkarılmaları gerekir. Yirmi yaşında erkek hastada ateş, öksürük ve nefes darlığı yakınmalarına yol açan ve fiberoptik bronkoskopide sol ana bronşu daraltan kitle lezyonu saptandı. Akciğer özek dokusunu korumak için medyan s...

This analysis of thirteen cases of lower airway foreign body aspiration in children reveals a high incidence of aspiration into the left main bronchus, and an increased incidence in older children. Early indentification of nonradio opaque foreign bodies such as food and plastic toys is difficult in the absence of a positive history. Suggestions are offered for prevention, early detection, and t...