This paper discusses the merits of drawing analogies between human-computer interaction and human-human collaboration in the light of the ever-advancing capability of computer systems. We argue that, given the differences in characteristics between humans and computers, suitable analogies should focus on the more basic, fundamental processes that make collaboration efficient, rather than aiming...

In this research, dipeptide (his-β-alanine) and porphyrin derivatives were choosen for comparing chelating ability of toxic metals such as Al3+, Cu2+, Hg2+ and Pb2+ in vitro. The reason for choosing these two compounds is that both of them are naturally present in biological systems and comparison of chelating ability of these two compounds has not yet been done. Synthesis and comparison of kin...

Introduction: To reduce occupational accidents and work-related diseases as well as improving satisfaction of working conditions, Assessment to identify risks and control measures are necessary. The aim of this study, applying ergonomic assessment indices to assessed the job groups and ability of textile workers. Materials and methods: This study was conducted on 194 men employed in the Qa...