Abstract Passive NO x adsorption (PNA) is a method, in which can be stored at low temperatures and released higher where the urea decomposition functional during selective catalytic reduction (i.e., above 180–200 °C). We have studied promotion of Pd/BEA with La as PNA presence high CO concentration. Both reference promoted samples exhibited significant loss adsorption/desorption capacity after ...

Introduction: Observations of terrestrial levels of highly volatile elements in lunar apatite, including H [1-3], suggested that some lunar melts were at least “damp” if not “wet” at some point in their histories. On the other hand, the very high δCl values in lunar rocks and apatites (up to ~+30‰ [4]) have been taken to mean that their parent magmas were essentially anhydrous, because such lar...

Background & Aims: In regard to the importance of atropine and scopolamine as medicines with natural source, this study was aimed to investigate the effect of chloramphenicol as an inhibitor of protein synthesis on the alkaloids content of Datura stramonium. Method: After initial preparation of medicinal garden seeds, they were planted 50 cm apart in four different sections. Three different con...

The present study was aimed at evaluating the antinociceptive and anti-inflammatory effects of the ethanol extract from Vernonia condensata leaves in animal models, in order to afford a better understanding of these properties. The extract reduced the number of abdominal contortions at doses of 100 (51.00 ± 3.00), 200 (42.00 ± 2.98) and 400 mg/kg (39.00 ± 4.00). In formalin tests, a significant...

We have developed a low-cost technique using a conventional microwave oven to grow layered basic zinc acetate (LBZA) nanosheets (NSs) from a zinc acetate, zinc nitrate and HMTA solution in only 2 min. The as-grown crystals and their pyrolytic decomposition into ZnO nanocrystalline NSs are characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), atomic for...

Tributyl phosphate (TBP) was tested for reproductive toxicity in rats. Thirty weanlings/sex (F0) were exposed to TBP in the diet ad libitum at 0, 200, 700, or 3000 ppm for 10 weeks and then randomly mated within groups for 3 weeks with continued exposure. F0 parents and 10 F1 weanlings/sex/dose were necropsied, and adult reproductive organs, urinary bladders (both sexes), kidneys (males), and l...

Abstract. 173 exfoliated teeth were collected from three groups of children, age 9-10 years, who for three school years used daily one of three mouthrinses consisting of (a) 200 ppm F, 0.1 M phosphate at pH 4.0, (b) 200 ppm F at pH 7.0, or (c) a placebo rinse. The average F concentration at 5 μm in 58 placebo treated teeth was 595 ppm. After approximately 190 rinses, the average F concentration...