background: the incidence of dentinal defects may infl uence the outcome of root canal treatment. the aims of this study were to evaluate and compare the incidence of dentinal defects following root canal obturation with two different techniques. materials and methods: a total of 110 mesial roots of human mandibular fi rst molars were selected. twenty-seven roots were left unprepared as negativ...

This study was designed in order to correlate the flavonoid and lipoidal matters content of Spinach roots and flowers to their hypolipidemic potential. The total flavonoid content was measured via complexation with aluminum chloride while determination of fatty acids methyl esters and unsaponifiable matters contents in both organs was performed using GC/MS. In an in vitro study, the crude etha...

to determine sugar content and root yield variation of new sugar beet hybrids under different irrigation levels, an experiment was carried out at zarghan agricultural research station offars agricultural and natural resources research center, shiraz, iran. the study was conducted as split block based on a randomized complete block design with three replications for two years, 2009-10, using lin...

This study aimed to investigate the effects of wild indigo (Baptisia tinctoria) root extract as a functional food material, in terms antioxidant and skin health-related activities. Both water ethanol (50/50, v/v) extracts showed high phenol content. They were evaluated for activity, such 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2?-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), protect...

the research aims at studying the effects of mycorrhizal fungi (glomus fasciculatum, g. mosseae and mixed composition) on growth, photosynthesis and nutrient absorption of ziziphus spina-christi in mehran greenhouse, ilam province. the result showed that colonization rate in mixed treatment was more than pure treatment of g. fasciculatum and g. mosseae. also, root fresh weight, stomatal conduct...

BACKGROUND Climate change scenarios that include precipitation shifts and nitrogen (N) deposition are impacting carbon (C) budgets in arid ecosystems. Roots constitute an important part of the C cycle, but it is still unclear which factors control root mass loss and nutrient release in arid lands. METHODOLOGY/PRINCIPAL FINDINGS Litterbags were used to investigate the decomposition rate and nu...

Increasing nitrogen absorption efficiency reduces use of excessive application of N. The effect of rootzone temperature on nitrogen absorption needs clarification. The experiment was conducted to investigate low (15°C, RTZ1), high (35°C, RTZ2) and optimum (25°C, RTZ3) root zone temperatures and nitrogen 52.5 (ND1), 78.75 (ND2) and 105 (ND0) mg∙L-1 levels on cucumber (Cucumis sativus L.), cv. Su...