Accelerated curing results, obtained after only 24 hours, are used to predict the 28 day strength of concrete. Various accelerated curing methods are available. Two of these methods are compared in relation to the accuracy of their predictions and the stability of the relationship between their 24 hour and 28 day concrete strength. The results suggest that Warm Water accelerated curing is prefe...

functional gastrointestinal disorders (fgids) are a common problem in children. these disorders in children are classified into the following categories according to the rome iii classification: functional dyspepsia, irritable bowel syndrome (ibs), abdominal migraines, childhood functional abdominal pain (fap), childhood functional abdominal pain syndrome and functional constipation. fgids are ...

Fractionation of an antitrypanosomal lipophilic leaf extract from Strychnos spinosa led to the isolation of eight triterpenoids and sterols in this plant part for the first time. Two of these were found to possess in vitro antitrypanosomal activity, namely, saringosterol (14) and 24-hydroperoxy-24-vinylcholesterol (15), with IC(50) values of 7.8 +/- 1.2 and 3.2 +/- 1.2 microM, respectively. The...

The cyclic voltammetric behavior of acetaldehyde and the derivatized product with 2,4-dinitrophenylhydrazine (DNPHi) has been studied at a glassy carbon electrode. This study was used to optimize the best experimental conditions for its determination by high-performance liquid chromatographic (HPLC) separation coupled with electrochemical detection. The acetaldehyde-2,4-dinitrophenylhydrazone (...

Thyroglobulin labeled with L-[U-‘*C]tyrosine was prepared, purified, and iodinated in order to investigate the fate of the 3-carbon fragment which remains when 2 iodotyrosine residues (18 carbon atoms) in thyroglobulin react with each other in the course of thyroid hormonogenesis to form 1 hormone residue (15 carbon atoms). Incubation of hog thyroid slices with L-[U-‘*C]tyrosine led to the form...

Serous subtype of ovarian cancer is considered to originate from fallopian epithelium mucosa that has been exposed to physiological changes resulting from ovulation. Ovulation influences an increased in inflammation of epithelial ovarian cells as results of constant exposure of cells to ROS. The imbalance between ROS and antioxidant capacities, as well as a disruption of redox signaling, causes...

It has been proposed that a ring-opened form may be responsible for the toxicity of benzene. The present studies demonstrate that incubation of [14C]benzene with liver microsomes (obtained from male CD-1 mice treated with benzene) in the presence of NADPH results in the formation of a ring-opened product. Evidence for the identity of this product was obtained by derivatizing with 2-thiobarbitur...