this study aimed to investigate the concentrations of two heavy metals, lead and cadmium, in the water of zayandehroud river which is surrounded by zarinshahr rice farms. water was sampled from a depth of 30 cm during june, july and august 2015, i.e. during the process of planting, growing and after harvesting, in three stations. water was collected from three points; 20m before the farms, besi...

Critical Appraisal of ‘‘EvidenceBased Labor and Delivery Management’’ The ability to critically appraise research reports is an essential skill for contemporary health professional practice. This applies equally to reports of single studies and reviews described as ‘‘evidencebased’’. Review articles compile all relevant research ¢ndings into one place and help resolve varied or con£icting resul...

This column highlights new resources that clarify knowledge about effects of specific practices in maternal/newborn and women's health. The focus is on new and recently updated systematic reviews and overviews of best research evidence. The column identifies recent additions to three major evidence-based databases: • Cochrane Database of Systematic Reviews (CDSR) uses a standardized method to r...

The availability of global gridded precipitation and outgoing long-wave radiation (OLR) data after 1978 makes possible an investigation of the influence of the decadal solar oscillation in the tropics during three solar maxima and two solar minima. The NCEP/NCAR reanalyses starting in the 1950s allows the inclusion of an additional two solar maxima and minima to look for consistency of response...

This study aimed to investigate the concentrations of two heavy metals, lead and cadmium, in the water of Zayandehroud River which is surrounded by Zarinshahr rice farms. Water was sampled from a depth of 30 cm during June, July and August 2015, i.e. during the process of planting, growing and after harvesting, in three stations. Water was collected from three points; 20m before the farms, besi...