statement of the problem: recently allogenic mesenchymal stem cells are proposed to have multipotential progenitor cell capabilities to differentiate into cementoblasts, osteoblasts, and periodontal ligament fibroblasts. purpose: the aim of the present study was to compare the efficacy of human umbilical stem cells cultured on polylactic acid (pla), polyglycolic acid (pga) membrane with pla/pga...

background currently, clinical endodontics includes procedures that are based on the ability of stem cells to accomplish repair (eg, direct pulp capping, apexogenesis, apexification, and even pulpal regeneration). an attempt is made to critically assess the current status in pulp regeneration therapy. methods: systematically, 2 distinctly different strategies exist involving stem cells for the ...

In Japan, repeated driftwood landslide disasters have become a major issue; thus, studies are required to better understand forest function implement appropriate management and prevent such disasters. We investigated the effect of Japanese cedar tree roots on shallow initiation. To incorporate two side-flanks landslide, we propose new slope-stability analysis method in which sliding block is si...

Ficus benjaminais a very popular and resistant indoor plant in temperate areas. Cutting is the easiest propagation method of this plant and it requires special treatments such as auxin and appropriate rooting medium. In order to test the suitable auxin (IBA) concentration and rooting media, a factorial experiment carried out based on randomized complete block design with three replications. Exp...

In order to study the effect of drought stress on seedling morpho-physiological traits of alfalfa (Medicago sativa), the seeds of ten populations were collected in their natural habitats from different parts of the Fars province, Iran in 2013. A factorial experiment was conducted using 10 alfalfa populations and four water stress treatments of 100, 75, 50, and 25% Field Capacity (FC) b...

a glasshouse experiment was conducted in universiti putra malaysia (upm) to evaluate the regeneration and yield potential in purslane using both seeds and stem cuttings of 20 collected accessions from different locations in western peninsular malaysia. analysis results revealed significant variations (p< 0.05) for morphological traits viz., plant height, number of main branches, number of nodes...

The WUSCHEL homeobox transcription factor is required to specify stem-cell identity at the shoot apical meristem and its ectopic expression is sufficient to induce de novo shoot meristem formation. Yet, the manner by which WUS promotes stem-cell fate is not yet fully understood. In the present research we address this question by inducing WUS function outside of its domain. We show that activat...

the aim of this reaserch was evaluathng the aluminum-sulphate concentration levels in preserved solution with stem recutting on longevity of rosa hybrida cv. varlon cut flowers. the investigation was conducted in horticultural lab,agriculturalcollege,zanjanuniversity. rose cut stems were produced in greenhouse from biennial mother stocks and were placed under the treatment of aluminum-sulphate ...