نتایج جستجو برای: toxic

تعداد نتایج: 77376  

Journal: :Communications earth & environment 2023

Abstract Dinoflagellates encompass highly abundant and diverse toxin-producing species among marine phytoplankton. Previous works suggested that some bacterial taxa may affect toxins production in dinoflagellates, however, little is known about impact of toxic dinoflagellates on their co-existing flora. Here we characterized the communities associated with 22 clonal cultures using DNA metabarco...

Journal: :environmental health engineering and management 0
farzad kazemi department of environmental health engineering, student research committee, faculty of health, mazandaran university of medical sciences, sari, iran zabihollah yousefi department of environmental health engineering, faculty of health, mazandaran university of medical sciences, sari, iran reza ali mohammadpour department of biostatistics, faculty of health, mazandaran university of medical sciences, sari, iran

background: dental wastes are one of the environmental issues due to toxic and pathogenic agents such as pathological wastes, pharmaceutical and chemical etc have particular sensitivity. the aim of this study was to determine the dental waste management and related factors in the city of ilam. methods: in this cross-sectional study, the studied community was all the sixteen dental clinics in il...

Journal: :caspian journal of environmental sciences 2008
m.h. assareh

human activities have continuously increased the level of heavy metal ions circulating in the environment. it is important to understand the tolerance of plant species to high concentrations of heavy metals. very little is known on the response of eucalyptus species to zn and cu toxic concentrations eucalyptus camaldulensis, e. microtheca, and e. occidentalis seeds were grown in silt and irriga...

Journal: :international journal of environmental research 2015
m. durkalec j. szkoda r. kolacz s. opalinski a. nawrocka

we used wild boars and roe deer as biomonitors of lead (pb), cadmium (cd), and mercury (hg)contamination in two major industrial sites in poland with different levels of toxic metal pollution. masurianlakes district, located far away from industry, was used as the reference site. levels of pb, cd, and hg in liver,kidney and muscle samples and in the stomach content of the animals were determine...

Journal: :international journal of nanoscience and nanotechnology 2015
m. zarafshar m. akbarinia h. askari s. m. hosseini m. rahaie

to date, the effects of nanoparticles on woody plants remain unaddressed. this study reveals some of the physiological and biochemical effects of sio2 nanoparticles on wild pear seedlings. the seedlings were irrigated with different concentrations of nano silica (0, 10, 100, 500 and 1000 mg/l) for 14 days. nanoparticle adsorption and absorption, biomass allocation, gas exchange, relative water ...

Journal: :Journal of health sciences and medicine 2022

Aim: To compare patients with toxic and non-toxic nodular/multinodular goiter in terms of clinical, sonographical cytological features.
 Material Method: The medical data 326 were reviewed retrospectively. Clinical sonographic features examined. Four hundred eighty-one nodules compared sonographically cytologically. One twenty-four had nodular 202 them goiter.
 Results: group was olde...

Journal: :Journal of Korean Medical Science 2010

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