background: pediculosis capitis is a continuous common health problem worldwide. pediculus capitis distributes quickly in overcrowded regions. the goal of the present research was to determine some epidemiological features of head lice infestation in khorram-shahr county, southwestern iran.   methods: this descriptive cross-sectional study was conducted on the patients with head lice infestatio...

A new root-knot nematode, Meloidogyne aquatilis n. sp., attacking the roots of Spartina pectinata Link growing in the Ottawa River is described and illustrated. Meloidogyne aquatilis is distinguished from M. graminis by the light brown body color and by the absence of perineal lateral fields in the female. The male differs by the shorter stylet and by the hemizonid being separated by 7-9 annule...

introduction environment is a pervasive platform for all the living creatures, which is exposed to multiple challenges, especially with the increasing rate of urbanization; levels and dimensions of these threats have increased. scientific activities in a publishing form such as reports and articles is an accepted procedure between various scientific fields. documents, reports and articles are s...

sunflower (helianthus annus l.) is the most important between oil plants in iran. the objective of this study was to evaluate the effects of micronutrients application on the sunflower yield under drought stress. this experiment was carried out at golmakan agriculture research station (iran) in 2005 that using a split plot randomized complete block design with four replications. irrigation was ...

Myiasis is the invasion of animal or human tissues by the larval stage of flies (Diptera). It is an accidental infestation in human. In this report a rural fifty-six-year old patient with myiasis on the scalp is presented. He was referred to clinic with a mass on his left temporo-occipital area. There was no history of trauma to his head or presence of ulcer on his scalp. In physical examinatio...

background: home visit program can be effective in infants’ growth and development. the present study aimed to investigate the effect of home visit program on preterm infants’ growth and development within 6 months. methods: it was a double-blind clinical trial study. the study was conducted in hafez, hazrat-e-zeinab, and namazee hospitals affiliated to shiraz university of medical sciences, sh...

In 1987, Kalai proved that stacked spheres of dimension d ≥ 3 are characterised by the fact that they attain equality in Barnette’s celebrated Lower Bound Theorem. This result does not extend to dimension d = 2. In this article, we give a characterisation of stacked 2-spheres using what we call the separation index. Namely, we show that the separation index of a triangulated 2-sphere is maximal...