The COVID-19 pandemic has changed the university admissions and proficiency testing landscape. One change been meteoric rise in use of fully automated Duolingo English Test (DET) for entrance purposes, offering test-takers a cheaper, shorter, accessible alternative. This rapid response study is first to investigate predictive value DET test scores relation students’ academic attainment, taking ...

The present study attempted to investigate the impact of electronic portfolio assessment on performance of Iranian EFL learners’ writing. To do so, 30 advanced EFL learners who participated in a TOEFL preparation course were selected as the participants of the study. After administrating a truncated version of TOEFL proficiency test, they were randomly assigned to control and experimental...

The internationalization of higher education in U.S. Colleges and Universities has raised issues concerning the performance of international students. Most of them speak English as a foreign language; therefore, this study is intended to analyze to which degree the level of English proficiency of an international student impacts his or her academic performance. This research is focused on the i...

The interaction between isatin-β-thiosemicarbazone (IBT) and calf thymus DNA (CT-DNA) was investigated in physiological buffer (pH 7.4) using Neutral Red (NR) dye as a spectral probe by UV-Vis absorption and fluorescence spectroscopy, as well as viscosity measurements. The IBT is stabilized by intercalation in the DNA (K [IBT -DNA] = 1.03×10(5) M(-1)), and displaces the NR dye from the NR-DNA co...

Vaccinia virus antigens, in HeLa cells treated with the antipox virus drug isatin beta-thiosemicarbazone (IBT), were analyzed by immunoprecipitation, followed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The total radioactivity in the immunoprecipitate was decreased to almost 50% in the presence of the drug as compared to its absence. An inhibition also occurred with an IBT-dep...

AIMS To describe our institutional experience with high dose rate (HDR) interstitial brachytherapy (IBT) compared with previously reported results on the low dose rate (LDR) practice for head and neck cancer. MATERIALS AND METHODS Eighty-four patients with oral cavity (n=70) or oropharyngeal cancer (n=14) were treated with 192Ir HDR-IBT. Seventy-eight patients had stage I or II tumour. The pa...

This study aimed at investigating the difference of integrated writing task of the TOFEL iBT candidates in comparison with independent writing task on Iranian EFL learners writing performance. The initial population for the study was 50 junior EFL students. To get more homogeneity, participants were selected among those who were studying in the third year of university in EFL major. They were m...