This paper presents a model for the characterization and selection of beeswaxes for use as base substitute tissue for the manufacture of objects suitable for external radiotherapy using megavoltage photon beams. The model of characterization was divided into three distinct stages: 1) verification of aspects related to the origin of the beeswax, the bee species, the flora in the vicinity of the ...

Beeswax foundations are a necessary material in intensive modern beekeeping. Heavy metals can accumulate in these foundations for decades, as it is a common beekeeping practice to recycle wax. Beeswax samples were analysed using GFAAS for As, Cd, Pb, and Hg concentrations during the production of beeswax foundations using casting technology with a prolonged cooling and sedimentation phase. Sign...

In developing of ointment for topical treatment of colds the structural and mechanical properties of the ointment bases contained isopropyl palmitate, beeswax and solid fat in different concentrations have been studied. Amount of isopropyl palmitate 60% remained constant and the ratio of solid fat and bee wax was varied. In order to study thixotropic properties the curve of kinetics deformation...

13C solid-state NMR experiments were performed to investigate the structure of beeswax in the native state (crude beeswax) for the first time. From quantitative direct polarization 13C MAS NMR spectrum, it was found that the fraction of internal-chain methylene (int-(CH2)) component compared to other components of crude beeswax was over 95%. The line shape of the int-(CH2) carbon resonance regi...

Adult female hamsters were injected each afternoon for 9 weeks with 2.5, 15 or 25 micrograms of melatonin or 6-chloromelatonin (CM). Each drug resulted in a significant dose-related depression in uterine, ovarian and anterior pituitary gland weights. Additionally, plasma and pituitary concentrations of prolactin fell with increasing dose of either indole whereas pituitary levels of LH and FSH w...

Tau-fluvalinate has been the most frequently used varroacide in Greece over the last decade. Application of the commercial apicultural product Apistan at the recommended dose does not seem to contaminate honey seriously. On the other hand, application of the nonauthorized for apicultural use, agricultural formulations, using various application techniques and doses may result in the presence of...

One of the main disadvantages of penicillin as a chemotherapeutic agent is that the kidney is able to eliminate it from the blood in a relatively short time, making it necessary that injections be repeated fairly frequently in order to maintain a therapeutic blood level for a long period. This is, of course, most undesirable from the patient's point of view and many workers have attempted to fi...

Abstract Bees produce beeswax, which is used to make honeycombs biodegradable, sustainable, compostable, eco-friendly. In addition honey and pollen, bees use comb store nectar rear their young. More than 300 things are made with such as candles, shoe polish vehicle floor polishes. Beeswax can also be in the food processing packaging, wax crayons, metal casting modelling, processing, cosmetics i...