genetic diversity is a key component of ecosystems. the aim of the present study was to evaluate the genetic diversity of iranian native honeybee colonies (apis mellifera meda l.) located in the northern region. colonies from 24 locations have been analyzed using microsatellite markers. samples were collected from caspian sea southern area (north of iran). six microsatellite markers (a28, a29, ...

one of the challenges of academic writing is the creation of a structurally and communicatively well-organized and coherent text. metadiscourse enables authors of journal articles to achieve this goal by raising the writers‘ awareness about discourse features which can contribute to a better academic content production. also, l1 background has always been a hot topic in applied linguistics and ...

Fibres are not digested by fowls, but their impact on digestive physiology, nutrient metabolism and intestinal microflora can be substantial. Analytical shortcomings have historically contributed to different notions on the significance of fibres, but modern techniques now enable us to better discriminate between various fractions of fibre and relate them with the performance of poultry. The fo...

One member of this family developed a spontaneous choroidal detachment about three months after sclero-corneal trephining, and tbI persisted unchanged for a year. It was (unsuccessfully) tven0d by a cautery puncture and is still present. The second family comprises six siblings out of a family of ten, one of whom died in infancy. Of the nine living siblings, eight are said to be glaucomatous, a...

Xyleborinus octiesdentatus (Murayama), an ambrosia beetle native to Asia, is reported for the first time in North America based on specimens from Alabama and Louisiana. This is the twenty-first species of exotic Xyleborina documented in North America. A re-description of the female and a key to the four North American species of Xyleborinus are presented.