Aurovertins B and D inhibited the adenosine triphosphatase (ATPase) activity of soluble Escherichia coli coupling factor ATPase (BF1) isolated from wile-type E. coli K-12. Half inhibition was obtained with 2 microns aurovertin B and 0.9 microns aurovertin D. Aurovertins B and D had no inhibitory effect on BF1 isolated from the aurovertin-resistant E. coli mutant MA12. Acetylation or saponificat...

To identify volatile constituents in Typhonium giganteum Engl., and clarify their effects on proliferation of breast cancer T47D cell lines. Volatile constituents in Typhonium giganteum Engl. are extracted by steam distillation, and determined by GC-MS. 24, 48 and 72 h after treatment of T47D cells with different concentrations of Typhonium giganteum Engl. volatile (DJL-V) constituents, methyl ...

The present study aimed at investigating Iranian TEFL teachers’ perspective toward the relationship between SLA research and ELT. The sample of this study consisted of 80 female and male TEFL teachers at different institutes and schools in the city of Tehran. The main instrument was a question- naire designed by Nassaji (2012). It enabled researcher to collect both qualitative and quantitative ...

This study aimed at investigating shades of identity in TEFL textbooks. Most identity studies have focused on authors as knowledge producers. They have neglected authors' roles in constructing identity. Further, few scholars have considered disciplinary specific textbooks in their analyses of identity. Trying to bridge these gaps, we applied Halliday’s Systemic Functional Linguistics to investi...

'ICRF Human Tumour Innunology Group, University College and Middlesex School of Medicine, 91 Riding House Street, London WIP 8BT; 2Department of Oncology and Pathology, University of Copenhagen, Rigshospitalet, 2100 Copenhagen, Denmark; 3Department of Medical Oncology, Western General Infirmary, Edinburgh EH4 2XU; 'Department of Oncology, University College and Middlesex School of Medicine, 91 ...

Pneumococcal diseases, caused by the bacterium Streptococcus pneumoniae, include pneumonia and otitis media, which accounts for some 12 million doctor visits per year in the United States alone. Each year around the world, pneumococcus causes 1.2 million deaths due to pneumonia, 39% of which are in children under the age of five. In a three-year Phase III clinical trial involving 38,000 childre...

Despite tremendous progress in the understanding and management of hypertension, control of elevated blood pressure (BP) in the general hypertensive population remains unsatisfactory, with only an approximate one third of patients 1 achieving the recommended BP goals. Consequently, cardiovascular risk as a result of target organ damage, notably in the heart, kidneys and brain remain high among ...