نتایج جستجو برای: burned
تعداد نتایج: 5827 فیلتر نتایج به سال:
Nosocomial infection is an important prognostic factor in out comes of burned patients. In this descriptive cross. Sectional study, 82 burned patients and related medical equipment were assessed in zareh hospital in 2033-2004. Pseudomonas aeruginosa and staphylococcus areus were found in 69(51.4%) and 31 (23.2%) of 134 clinical specimens respectively. Hence it is mandatory to plan programs fo...
In 1997 and 1998 uncontrolled fires devastated huge tracts of tropical rainforests in Kalimantan on the island of Borneo in Indonesia. Here we report on results of a comparative study of ERS-2 ATSR hotspot and NOAA-AVHRR hotspot data used to analyse the extent of this disaster. A burned scar map derived from a Landsat TM image acquired after the fires and extensive ground data were used to asse...
Wind erosion of soil is an appreciable but unstudied event following fires in cold desert. We examined aeolian transport of sediment for one year following fire in semiarid shrub steppe of southern Idaho. Sediment collectors were used to determine horizontal mass transport of soil ( ) and saltation sensors and anemometers were used to determine saltation activity (# seconds saltation is detecte...
We report on the numerical separation of burned and unburned vegetation classes using diVerent bi-spectral spaces, based on the analysis of spectro-radiometric data collected in situ and convolved to ve spectral bands at red to mid-infrared (MIR) wavelengths. A combination of two MIR bands was found to have strong spectral separation of burned and unburned samples. Using these bands, a spectral...
Many of the largest wildfires in US history burned in recent decades, and climate change explains much of the increase in area burned. The frequency of extreme wildfire weather will increase with continued warming, but many uncertainties still exist about future fire regimes, including how the risk of large fires will persist as vegetation changes. Past fire-climate relationships provide an opp...
Andrey Krasovskii1*, Nikolay Khabarov1, Mirco Migliavacca2, Florian Kraxner1, Michael Obersteiner1 1International Institute for Applied Systems Analysis, Schlossplatz 1, 2361 Laxenburg, Austria 2Max Planck Institute for Biogeochemistry, Hans-Knöll-Str. 10, 07745 Jena, Germany Abstract: This paper presents a series of improvements to the quantitative modelling of burned areas in Europe under his...
Mercury (Hg) stored in vegetation and soils is known to be released to the atmosphere during wildfires, increasing atmospheric stores and altering terrestrial budgets. Increased erosion and transport of sediments is well-documented in burned watersheds, both immediately post-fire and as the watershed recovers; however, understanding post-fire mobilization of soil Hg within burned watersheds rem...
Pojmom „burned-out tumour“ sa označuje zriedkavá klinická entita, ktorá sa prezentuje spontánnou a kompletnou regresiou testikulárneho nádoru bez predchádzajúcej liečby pri náleze metastáz v retroperitoneu, v mediastíne, v lymfatických uzlinách, v pľúcach alebo v pečeni. Opisujeme prípad 55-ročného pacienta s bolesťami v pravej driekovej oblasti, u ktorého bola CT vyšetrením zistená tumorózna m...
An algorithm based on a Bayesian network classifier was adapted to produce 10-day burned area (BA) maps from the Long Term Data Record Version 3 (LTDR) at a spatial resolution of 0.05° (~5 km) for the North American boreal region from 2001 to 2011. The modified algorithm used the Brightness Temperature channel from the Moderate Resolution Imaging Spectroradiometer (MODIS) band 31 T31 (11.03 μm)...
Fire is a major disturbance factor influencing the formation and maintenance of oak (Quercus)-dominated forests of eastern North America. Fire suppression practices have resulted in declining oak dominance, and caused the loss of oak seedlings due to poor light regimes and vegetative competition. Both wildfires and prescribed fires can alter forest stand composition and influence succession. Fi...
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