With the popularization of the inverter-driven air-conditioner and the requirement of comfort and energy saving, the operating frequency of inverter-driven air-conditioner is lower and lower, even to 1Hz. But when the air-conditioner operates under the frequency of 10Hz, a periodic sound will appear in the air-conditioner outdoor unit, which should be researched and solved. According to the exp...

Objective: Zirconium dioxide (ZrO2) nanofillers were added to denture liners improve their physical properties. The main goal of this research was evaluate the impact adding nano zirconium oxide fillers on color change, water sorption and solubility silicone acrylic liners. Materials Method: surface ZrO2 nanoparticles modified via treatment with silane coupling agent (3-aminopropyl) triethoxysi...

BACKGROUND Cryotherapy is a safe, affordable, and effective method of treatment for cervical intraepithelial neoplasia. In some low-resource settings, environmental conditions or qualities of the refrigerant gas can lead to blockage of cryotherapy equipment, terminating treatment. A prototype of a gas conditioner to prevent operational failure was designed, built, and field tested. METHODS Th...

OBJECTIVES Epulis Fissuratum or Denture-induced hyperplasia is benign tumor-like of fibrous connective tissue, which develops usually in association with an ill-fitting complete partial denture. The aim this report to present a case showing the treatment fissuratum relation denture Simple but innovative technique. epulis was removed conventional surgical approach excision carried out by split-t...

Panthenol is the alcohol corresponding to pantothenic acid, with the formula HOCH 2 C(CH 3) 2 CHOHCONH(CH 2) 2 CH 2 OH. It is a member of the vitamin B complex (B 5) and a component of coenzyme A. Panthenol is produced synthetically from 2,4-dihydroxy-3,3-dimethylbutyric acid and b-alanine. Common sources are food products such as liver, kidney, yeast, crude molasses, whole grain cereals, milk ...

little is known about the interaction of tissue conditioners and modeling plastics. this study evaluates the influence of a variety of commercial tissue conditioners on alteration of viscoelastic properties of modeling plastics.in this in vitro study, the dynamic viscoelastic properties of four commercially available tissue conditioners (tc), visco-gel (vg), gc soft-liner (sl), fitt (ft), and c...

During a medical entomology course in Boa Vista, Roraima, colonies of Triatoma maculata closely associated with pigeon nests were observed in concrete air-conditioner box located on the external plastered and cemented walls of a modern brick-built apartment block. In only one eight-hole ceramic brick, located inside one air-conditioner box, 127 specimens of T. maculata were collected. T. macula...