Placenta is a unique organ, without which the very phenomenon of human pregnancy impossible. Semiallogeneous nature, localization placenta, complex and heterogeneous cellular composition determines its multifaceted role in course physiological pregnancy, indicates importance studying this organ number reproductive pathologies. The purpose review was to analyze literature sources illustrating en...

In urban planning, access to public spaces provides social relations for citizens. The goal of thispaper is to evaluate the elderly's requirements in public spaces (case study of Sheet Bazaar, Zanjan, Iran) in order torecognize and classify their strengths and weaknesses and present more appropriate and effective strategies for theirimprovement. In this research, the related literature on old a...