نتایج جستجو برای: environmental toxic substances
تعداد نتایج: 487973 فیلتر نتایج به سال:
Negative chemical ionization mass spectrometry with a mixture of isobutane, methylene chloride, and oxygen as the reagent gas has been used to explore contamination of environmental substrates with xenobiotic chemicals. The substrates in question, fish tissue, human seminal plasma, and human adipose tissue, were cleaned up by one of the following three cleanup procedures: (1) continuous liquid-...
1 Environmental Chemistry Unit, Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden; 2 The Centre for Environment, Fisheries and Aquaculture Science, Cefas Lowestoft Laboratory, Pakefield Road, Lowestoft, Suffolk NR33 0HT, UK; 3 VU University, Institute for Environmental Studies, De Boelelaan 1087, 1081HV, Amsterdam, The Netherlands; 4 Toxicolo...
In this study, life cycle assessment and costing results about piezoelectric thermoelectric materials for energy harvesters (EHs) are extracted from the literature evaluated. This study serves as a basis comparing current EHs with innovative that will be developed within Horizon 2020 FAST SMART project. FAST—SMART aims at increasing performance of while reducing same time: The use rare elements...
BACKGROUND Directive 98/8/EC harmonizes and regulates in the European market authorization and registration of biocides and establishes a period of 14 years for review of active substances. This study analyzes the most significant changes produced in the registry of biocides used as disinfectants registered since the publication of the Directive. METHOD Information was obtained from the regis...
Objective: The aim of this study was to investigate the structural model of the role of environmental and family factors in the developmental prevention of the tendency to use drugs and psychotropic substances. Method: The research was descriptive-correlational. The statistical population of the study included Children and adolescents in Karaj who had used drugs or psychotropic substances at le...
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