I have .5ml of a stock 3.0ppm F- solution that Im adding to 2.5 ml.pdf

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I have .5ml of a stock 3.0ppm F- solution that I\'m adding to 2.5 ml of water. I need to find the F- concentration of solution in ppm. I have to assume the density of the solution and water are the same. I don\'t need the answer, just help setting up the DI. Solution 3ppm means 0.0003 % net volume is 0.5+2.5 = 3ml density of water and solution is same so so concerntration = 3*0.5/3 = 0.5 ppm.

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describe two recent scientific research studies and it therapies involving stem cells. Explain what the researches did(how the study was performed).the result and conclusion Solution Therapies for wound healing: Wound healing is a dynamic process bleeding and coagulation, acute inflammation, cell migration, proliferation, differentiation, angiogenesis, re-epithelialization, and synthesis and remodeling of the extracellular matrix. Many local and systemic factors can impair wound healing process resulting in prolonged and non-healing chronic wounds which affects the quality of patients’life. Stem cell-based therapy represents a promising therapeutic approach for wound healing. Stem cells have been shown to mobilize and find home for ischemic and wounded tissues where they secrete chemokines and growth factors to promote angiogenesis and extracellular matrix remodeling. In wounds, It has been reported that Mesenchymal stem cells are recruited to wound skin at the time of wound healing and have the capacity to differentiate into multiple skin cell types including keratinocytes, endothelial cells and pericytes. Furthermore, circulating MSC recruitment was induced by a specific chemokine (SLC/CCL21)/chemokine receptor (CCR7) interaction both in vitro and in vivo. Intradermal injection of SLC/CCL21 significantly accelerated wound closure by increasing rates of MSC accumulation, especially the formation of endothelial transdifferentiated cells (Sasaki et al., 2008) . MSCs are good candidate which can be transdifferentiated into endothelial cells and epithelial- fibroblast cells for wound repair therapy and understanding there signaling mechanism can further help in regenerative medicine. Mesenchymal stem cells (MSC), referred as mesenchymal stromal cells , colony forming unit- fibroblasts and mesenchymal progenitor cells , were first identified by Friedenstein as subpopulation of bone marrow cells. Other than hemopoietic stem cells and differentiated lineages, bone marrow contains a subset of nonhemopoietic cells, mesenchymal stem cells (MSCs) that account for roughly 0.01–0.001% of the bone marrow derived cell population . These are a rare population of non-hematopoietic stromal cells, present in the bone marrow and most connective tissues of the body.They have capability to proliferate in vitro in uncommitted state and retain their multilineage differentiation potency which make them attractive candidates for biological cell-based tissue repair approaches. These cells have ability to differentiate into three mesenchymal lineages: adipogenic , osteogenic, chondrogenic and can be induced to commit to various other phenotypes like neurogenic, hepatocytes,myogenic, tenocytes, cardiomyocytes, fibroblast and endothelial cells. In vivo studies have also shown that MSCs can differentiate into tissue-specific cells in response to cues provided by different organs . In addition to pluripotency, MSCs are known to have immunosuppressive effects involving vari.

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I have .5ml of a stock 3.0ppm F- solution that Im adding to 2.5 ml.pdf

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I have .5ml of a stock 3.0ppm F- solution that Im adding to 2.5 ml.pdf