STATEMENT OF PROBLEM For some patients, radiation treatment is a part of tumor therapy in the head and neck area before and/or after surgery. The oral cavity and teeth are thereby frequently exposed to high doses of radiation. In this situation, electronic backscatter from dental materials may damage the surrounding soft tissue. PURPOSE This study determined the degree of absorption and the b...

background & aim: homalium letestui pellegr (flacourtiaceae) used traditionally by the ibibios of southern nigeria to treat stomach ulcer, malaria and other inflammatory diseases was evaluated for antiulcer properties.  experimental: the effects of ethanol stem extract of h. letestui (200 – 600 mg/kg) and fractions (aqueous and dichloromethane, 400 mg/kg) on experimentally induced ulcer wer...

BACKGROUND The dose-limiting toxicity of doxorubicin on hematopoietic stem cells reduces the maximum benefit from this powerful drug. Melatonin may play a role in reducing this toxicity. MATERIALS AND METHODS Melatonin at 10 microM was used while challenging human peripheral blood stem cells (PBSC) with doxorubicin (0.6 microM and 1 microM), and colony formation was used to evaluate the prote...

Titanium alloys are very interesting because they have one of the highest strength/weight ratio among the metallic materials. The spontaneous formation of a protective native oxide layer on its surface, named passive layer, leads to a high corrosion resistance which makes these alloys good materials for different technological applications [1,2]. However, for some applications, the protection a...

conclusions tg showed protective effect against ethanol induced gastric ulcer. this study confirmed traditional medicine claims of tg. objectives the aim of the present study was to determine the acute toxicity and protective effect of hydroalcoholic extract of tg (hetg) against ethanol induced gastric ulcer. materials and methods male wistar rats were divided into five groups (n = 7). hetg at ...

The hierarchical architecture of protective biological materials such as mineralized fish scales, gastropod shells, ram's horn, antlers, and turtle shells provides unique design principles with potentials for guiding the design of protective materials and systems in the future. Understanding the structure-property relationships for these material systems at the microscale and nanoscale where fa...

Phase Change Materials In article 2206301, Chatterjee, Chaudhari, and Anand outline the selection criteria to identify phase change materials that can thermally respond by harnessing condensational latent heat simultaneously delay frost formation shed ice from surfaces for devising protective coatings capable of freeze-protection in wintry environments.

in the present study, protective effect of teucrium polium l. (labiatae) extract on acetaminophen-induced hepatotoxicity was investigated in mice. animals were divided into six groups, each group consist of 8 mice. group one as the negative control group received normal saline, while group two received only crude extract of t. polium l. (500 mg/kg) for five days and group three as the positive ...

objective: the purpose of this study was to identify affecting factors on students’ environmental protection behavior (sipb). methods: statistical population of this research consisted of 1480 students in alborz agricultural technical higher education centers. a stratified random sampling method was used to select 145 student applying cochran's formula. the main tool to collect data was a resea...