SPECIFICATION AND SPATIAL ARRANGEMENT OF CELLS IN THE GERMLINE STEM CELL NICHE OF THE DROSOPHILA OVARY DEPEND ON THE MAF TRANSCRIPTION FACTOR TRAFFIC JAM.

Germline stem cells in the Drosophila ovary are maintained by a somatic niche.The niche is structurally and functionally complex and contains four cell types, the escort, cap, and terminal filament cells and the newly identified transition cell.We find that the large Maf transcription factor Traffic jam (Tj) is essential for determining niche cell

Medicinal plants are, for a considerable part of the population, an important source of treatment for certain diseases.They contain essential nutrients for the human body such as magnesium, iron and zinc.The present study shows the influence of the addition of As, Cd, Ni, Pb on mineral nutrients in different organs of Mentha piperita.The experiment

Syn-subduction basins bear Hoses significant implications to understand tectonic evolution of any fossil subduction zone.The late Paleozoic to early Mesozoic (Paleo-Tethyan) tectonics of the eastern and southeastern Tibetan Plateau (i.e., the Sanjiang Orogenic Belt) is featured by ocean-continent subduction systems.A huge pile of volcanic-absent se

Background & Purpose: The purpose of this study is to design a model to measure employee engagement in the Qazvin Civil Registration Organization.Methodology: This research is applied in terms of purpose and quantitative in terms of the nature of the data.First, by studying the theoretical literature, the factors affecting employee engagement were