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in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...
As dating app use continues to rise, so too do women’s experiences of intrusion in digital contexts. The extent which apps facilitate intimate intrusions—defined this article as behaviour that makes women feel uneasy, uncomfortable, or unsafe—has been the subject burgeoning scholarly and media attention. While research provides important evidence for range intrusions experience on apps, date, l...
the purpose of this study is to investigate the relationships between teachers’ immediacy behaviors and iranian students’ willingness to talk in english classes. analysis of the results from willingness to talk scale represents a relatively high level of willingness to talk in english classrooms among iranian language learners. the total mean score of students’ willingness to talk was 66.3 ou...
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