نتایج جستجو برای: beeswax
تعداد نتایج: 423 فیلتر نتایج به سال:
Evidence of prehistoric dentistry has been limited to a few cases, the most ancient dating back to the Neolithic. Here we report a 6500-year-old human mandible from Slovenia whose left canine crown bears the traces of a filling with beeswax. The use of different analytical techniques, including synchrotron radiation computed micro-tomography (micro-CT), Accelerator Mass Spectrometry (AMS) radio...
Even if a web-based messaging service offered confidential channels, how would users know whether their keys, or indeed even their plaintext, was not being exfiltrated? What if a variety of applications offered confidentiality? How would a user gain trust in all of them? In this paper we argue that a platform for private web applications is the only practical way for users to gain assurance abo...
Bee products can be contaminated from different sources. The contamination can arise from beekeeping practices or from the environment. Environmental contaminants are covered in the first part of the review. They are: the heavy metals lead, cadmium and mercury, radioactive isotopes, organic pollutants, pesticides (insecticides, fungicides, herbicides and bactericides), pathogenic bacteria and g...
The response of male and female Small Hive Beetle (SHB), Aethina tumida, to air-borne volatiles from adult worker bees, (Apis mellifera), pollen, unripe honey, beeswax, wax by-products (“slumgum”), and bee brood, was investigated in olfactometric and flight-tunnel choice bioassays. In both bioassay systems, males and females responded strongly to the volatiles from worker bees, freshly collecte...
Two bio-oleogels were investigated. These materials produced with a combination of canola and soybean oil 4, 6, 8, 10% beeswax (by weight). Sensible heat storage capacity, melting parameters, enthalpies investigated by the differential scanning calorimetry (DSC) test. An ordinary DSC dynamic test was performed. Cycles heating cooling performed, as well tests different rates. According to result...
solid lipid nanoparticles (slns) have emerged as an alternative colloidal carriers for sustained release of lipophilic drugs with poor absorption and water solubility. this manuscript describes the effect of process variables on the production of solid lipid nanoparticles (slns) from beeswax and carnauba wax and ketoprofen release from these carriers. it was found that by increasing drug conten...
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