limited studies have been made on the cercariae from freshwater snails in iran. this study was conducted to determine the cercariae fauna of bellamya (viviparus) bengalensis and evaluation of their zoonotic importance in khuzestan province, south-west of iran. for this purpose, 1143 bellamya snails were collected from ahoudasht region in central areas of the province during 2002-2003. bellamya ...

Overall 10389 snails were collected from four study areas of Punjab from November 2005 to October2006. The highest prevalence (38%) was found for Indoplanorbis followed by Physa (17%), Bellamaya(10.3%), Gyraulus (10%), Lymnaea (9.2%), Oncomelania (9%) and the lowest was found for Bulinus (6.7%).Only Indoplanorbis snails were found to be positive for Schistosoma bovis cercaria. Correlation betwe...

conclusions the reason for difference in the detected snail genera in sampling sites may be due to various physicochemical factors. according to the current study, medically important snails exist in miangran lake and they could be a source of trematode infections for the local people. controlling measures after comprehensive studies should be applied. background some freshwater snails are acti...

Stress alters the ability to form, recall and maintain memory according to the Yerkes-Dodson/Hebb (YDH) law. The effects of environmentally relevant stressors, such as low environmental calcium and crowding, on learning and memory have previously been described in a laboratory-reared 'average' strain of Lymnaea stagnalis (i.e. the Dutch strain) as well as two strains of freshly collected L. sta...

A real-time polymerase chain reaction (PCR) assay with fluorescence resonance energy transfer (FRET) hybridisation probes combined with melting curve analysis was developed to detect Schistosoma japonicum in experimentally infected snails and in faecal samples of infected mice. This procedure is based on melting curve analysis of a hybrid between an amplicon from the S. japonicum internal trans...

It is important to always monitor the bioaccumulation potential for heavy metals by organisms especially edible ones, assess their risk human health. This study evaluated of in shell and soft tissues snails. Forty snails each were purchased from Ikire Ore towns. The snails’ shells, feet, digestive tracts glands analysed using an Atomic Absorption Spectrophotometer. results showed that con...

t. ikawa obtained an ordinary differential equation for the circular helix. recently, the helix havebeen investigated by many differential geometers such as t. ikawa, h. balgetir, m. bektas, m. ergut, n.ekmekci and h. h. hacısalihoglu. in this paper, making use of this author’s methods, we obtainedcharacterizations of helix for a curve with respect to the frenet frame in 3-dimensional galilean ...