background : road runoff is a linear diffuse source of pollution, with very specific pollutant characteristics and ability to discharge into the environment. heavy metal pollution in road runoff has caused widespread concern since the last century. therefore, the purpose of this study was to assess fe, pb, and cd concentrations in surface runoff from regions with high traffic intensity in the c...

purpose: to evaluate the prevalence, natural course, and final visual acuity in patients with stages iii or iv of diffuse lamellar keratitis (dlk) following laser in situ keratomileusis  (lasik). methods: in this descriptive study, records of all the patients who underwent lasik surgery in two private excimer laser clinics were reviewed. according to linebarger- lindstrom-hardten classification...

non-hodgkin lymphoma usually presents with generalized lymphadenopathy, but it can also involve any part of the human body. lymphomatous involvement of muscles is a rare presentation and has been reported to occur in only 1.1% in non-hodgkin lymphoma. here we, present a 32 year-old iranian man with primary involvement of spleen, bone, bone marrow and muscle, mimicking soft tissue sarcoma; core ...

in this research, cobalt and nickel sulfide nanoparticles (nps) were grown on almcm-41 matrix by using ion exchange method. the prepared samples were irradiated by thermalized neutron that emitted from am-be source up to fluencies (7.9+e9n/cm2). after that, x-ray diffraction (xrd), uv-vis spectroscopy, fourier transform infrared (ftir), scanning electron microscopy (sem) and transmission electr...

Pollution caused by closed mining activities is particularly difficult to treat because it dates back a very long time. Water contamination results from large-scale disturbance of the land on which underground exploitation useful mineral substance took place. Discharges mines can be treated as diffuse point sources; water quality due reactions that occur in an area cover tens square kilometres....

Relative diffuse reflection measurements from the original and ground surfaces using a He-Ne laser are reported. The intensity measurements for the metallic, transparent dielectric, matte plastic surfaces and colored papers are presented. Our results indicate that among metallic surfaces tested, aluminum has the highest diffuse reflectance; while the original stainless steel surface shows the l...

Pollution from agriculture has environmental consequences at local and global scales. Managing this pollution is challenging because of diffuse sources and complex relationships between aquatic and atmospheric emissions. We illustrate this for a UK county that has suffered outbreaks of microbial pollution and eutrophication. We surveyed 49 livestock farms covering 12% of total agricultural graz...

2 This paper draws on lessons from a UK case study in the management of diffuse microbial pollution from grassland farm systems in the Taw catchment, south west England. We report on the development and preliminary testing of a field-scale faecal indicator organism risk indexing tool (FIORIT). This tool aims to prioritise those fields most vulnerable in terms of their risk of contributing FIOs ...

Agriculture and its methods of operation constantly influence the quality water surface bodies. It was established in 2021 that Lithuania, 63% bodies river 64% lake categories are classified as risk do not meet good condition criteria. One main factors leading to deterioration is continuing increasing diffuse pollution, mainly from agricultural activities, together with pollution agriculture; a...