the current study aimed to investigate the status of harakat journal from its first volume (summer, 1378, no. 1) to the last one (winter, 1368). descriptive research method was used. the statistical population included 338 published papers in 34 harakat journals, and the statistical sample was equal to the statistical population. the data analysis identified 338 papers (average of 9.94) for eac...

After arXiv.org, the RePEc economics library offers the second-largest source of freely downloadable scientific preprints in the world. RePEc has a different business model and a different content coverage than arXiv.org. This paper addresses both

sperm cells are one of the most stellar and fas-cinating cells in all species. one of the most distinctive characteristic of these cells is their movement dynamics which can be observed through a light microscope. the first paper regarding sperm cell biology that appeared on pubmed was pres-ented by dr. w.f. whitney (1). there, he showed the staining properties of spermatozoa and it was publish...