Introduction: Prostate specific antigen (PSA) is one of the most sensitive markers for diagnosis of prostate cancer. Immunoradiometric kit (IRMA) is a common and sensitive method for determination of PSA in clinical laboratories. This kit has four major components: solid phase coated with monocolonal antibody, pair antibody labelled with I-125, series of standards i...

As a communication link between suburban and urban roads, terminals prevent buses from entering the cities, thus, they play an important role in improving traffic flow, reducing urban environmental pollution. Clearly, proximity of te rminals to cities will bring about environmental pollution in different forms (soil, water, air and wastewater). The current study tries to investigate the environ...

successful export of a commodity is closely dependent upon observing the related international standards. aflatoxin standard is an important index of pistachio import/export market. a lot of pistachio consignments are annually rejected because of being infected with aflatoxin. this results in export market's instability and fluctuations. the role of aflatoxin contammination in pistachio ma...

introduction discussion of sustainability and sustainable development, regardless of towns and cities would be meaningless cities as the main factor causing instability in the world are, in fact, the concept of urban sustainability and global are stability. environmental crises and urban issues such as air pollution, water, soil and water resources and agricultural land use renewable, global wa...

Air pollution control in the United States for five common pollutants--particulate matter, ground-level ozone, sulfur dioxide, nitrogen dioxide, and carbon monoxide--is based partly on the attainment of ambient air quality standards that represent a level of air pollution regarded as safe. Regulatory and health agencies often focus on whether standards for short periods are attained; the number...

Since 2012, China has been facing haze-fog weather conditions, and haze-fog pollution and PM2.5 have become hot topics. It is very necessary to evaluate and analyze the ecological status of the air environment of China, which is of great significance for environmental protection measures. In this study the current situation of haze-fog pollution in China was analyzed first, and the new Ambient ...