AB STRACT: Smoking pa tients show re duc tion of in flam ma tory clin i cal signs that might be as so ci ated with lo cal vasoconstriction and an in creased gingival ep i the lial thick ness. The pur pose of this work was to eval u ate the thick ness of the mar ginal gingival oral ep i the lium in smok ers and non-smok ers, with clin i cally healthy gingivae or with gin gi vi tis. Twenty bi op ...

An exception compilation scheme that dynamically creates and removes exception handler entries on the stack. A formalization of an article of the same name by Hutton and Wright [1]. 1 Compiling exception handling theory Exceptions imports Main begin 1.1 The source language datatype expr = Val int | Add expr expr | Throw | Catch expr expr consts eval :: "expr ⇒ int option" primrec "eval (Val i) ...

Selenium (Se) is a contaminant in effluents from coal mines and coal-fired power stations, where it is encountered as the oxyanion selenate (SeO4(2-), hereafter Se(VI)). Se(VI) can be removed from solution with Fe-treated biosorbents, but the efficacy of these treatments in effluents with multiple contaminants is unclear. This study investigates the interactions between Se(VI) and the oxyanions...

To assess how the grain size/rock fabric of laboratory-matured shale samples impact oil, gas production, and formation pores during laboratory thermal maturation, cores (4.5 mm*1 cm) bulk rock, millimetric equidimensional rock fragments (3*3 mm), fine grind powder (<200 μm) were obtained from an organic-rich mudstone (Kimmeridge Clay Fm. “KCF”, Yorkshire, UK) artificially matured under anhydrou...

Waste vehicle tires (WT) and high density polyetylene (HDPE) were pyrolyzed at 300, 500 700°C by slow pyrolysis. Solid product (pyrolysis char) collected pyrolysis char was used as adsorbent for COD Cr(VI) removal. The samples characterized BET, EDS, SEM XRD analysis. Based on the results of samples, WT 700 can be adsorbents Cr (VI) organic material adsorptions. removal efficiency investigated....