Stabilization of Silicone Dioxide Nanoparticle Foam in Tertiary Petroleum Production

Silicone foam sponge for pilonidal sinus

SIR,-I read with interest the paper by Mr R A B Wood and Professor L E Hughes on the above subject (18 October, p 131) and would like to make the following conuments. The disadvantages of permitting an excised wound to iheal by "packing and granulation" are those of prolonging healing time (inpatient and outpatient), delaying wound contractions, and promoting repair by tissue that is weaker and...

Inadvertent application of silicone foam elastomer catalyst to the eye.

Silicone foam elastomer is used extensively to treat granulating wounds. A case is presented in which the catalyst to the polymer was inadvertently applied to the eye. This produced conjunctival and corneal injury, which was slow to heal and resistant to conventional treatment. This form of injury has not previously been described.

Measurements of respirable dust and nanoparticle concentrations in a titanium dioxide pigment production factory.

This study compared respirable dust and nanoparticle concentrations measured by different sampling devices at a titanium dioxide pigment factory. Respirable particle mass concentrations, nanoparticle concentrations, particle size distribution and particle metallic content were measured at different sampling locations. The sampling results of the Multi-orifice Uniform Deposit Impactor (MOUDI) sh...

molecular and physiological characterizations of floral scent production in rosa damascena mill.

گل محمدی (r. damascena mill.)مهمترین گونه ای است که در تولید گلاب، عطر و اسانس، در صنعت عطرسازی و دارویی کاربرد دارد. با وجود اهمیت عطر گل محمدی، پژوهش های مولکولی و بیوشیمیایی عطر گل این گونه هنوز در مراحل ابتدایی است. در این پژوهش، ویژگی های مولکولی و فیزیولوژیکی تولید عطر در گل محمدی در آزمایش های مختلف مورد بررسی قرار گرفتند. در آزمایش اول، پژوهشی به منظور بررسی تنوع شیمیایی اسانس میان 44 ت...

Alaska's New Petroleum Production Tax