Purpose

To assess the comparability of linear measurements of dental implant sites recorded from multidetector computed tomography (MDCT) images obtained using standard-dose filtered backprojection (FBP) technique with those from various ultralow doses combined with FBP, adaptive statistical iterative reconstruction (ASIR), and model-based iterative reconstruction (MBIR) techniques. The results of the study may contribute to MDCT dose optimization for dental implant site imaging.

Methods

Twenty indigenous (Apis mellifera yemenitica) honeybee colonies were transferred from the traditional log hives into modern movable frame (Langstroth) hives and divided into 4 Groups. Each group was provided with a modified frame to assess the effect of frame-type on colony settlement, wax secretion, sugar syrup and pollen consumption, sealed brood area, honey and pollen storage. Role of sugar syrup and pollen patty feeding was also evaluated for easy Apis mellifera yemenitica establishment in modern hives under Riyadh conditions.

SCANNING ELECTRON MICROSCOPIC STUDIES ON ANTENNAL SENSILLA ORGANS OF ADULT HONEY BEE WORKS IN GENUS APIS

The ectoparasitic mite Varroa jacobsoni Oud. (Acari:
Mesostigmata) is considered as one of the most serious
pests of Apis mellifera L. colonies in most parts of the
world. On its natural host, Apis cerana F., the Varroa mite
population is generally under the damage threshold
because the mite parasitizes primarily drone brood
(Koeniger et al., 1981; De Jong, 1988, Tewarson et al.,
1992 and Rosenkranz et al., 1993) and an intensive self,
nestamate and group cleaning and grooming behavior

The African and temperate European races of honey bees, Apis mellifera, differ significantly in the extent to which they invest their basic resources. The former group of bees exhibit adaptations geared toward brood rearing and subsequent reproductive swarming; while the latter, towards massive storage of resources (Hepburn and Radloff, 1998). It has been inferred that tropical bees are continuously selected to invest more in brood rearing to compensate for losses as a result of predator and climatic pressures (Seeley, 1985). Indeed, African races of A.

A bee plant’s contribution to honey
production depends not only on its
abundance but also on its nectar quality
and quantity. Moreover, not all nectar
produced by flowers is accessible to
honeybees (Bastiaan, 1984). Even if
accessible, the amount and concentration of
nectar varies from plant to plant, and over
time (Roubik, 1991; Chalcoff et al.,
2006). Many studies have been conducted
on different species to quantify nectar
secretion and to explore its dynamics,
mainly in relation to pollination biology,

.(MORPHOMETRICAL AND HISTOLOGICAL STUDIES ON SOME BEE GLANDS IN GENUS APIS IN SAUDI ARABIA (KSA