background: this study quantified the effect of four popular culture media in a biodiesel production study on the qualitative and quantitative lipid content, dry biomass, and lipid productivity of nannochloropsis oculata. methods: culture of microalgae was done separately in walne, f/2, sato, and tmrl media. in the logarithmic and stationary growth phases, biomass production and lipid accumulat...

In this study, urease production was investigated among thirteen strains of Aspergillus niger seven strains isolated from soils of Semnan province in Iran and six strains obtained from Persian Type Culture Collection (PTCC). The enzyme production was screened in two submerged media quantitatively. The registered PTCC 5011 and the native S31 strains showed more urease production than the other e...

OBJECTIVE To detect hCG in spent embryo culture media at day 2 after intracytoplasmic sperm injection and to assess the relationship of hCG to embryo development. DESIGN Experimental study. SETTING Fertility center and clinical diagnostic laboratory. SAMPLE(S) A total of 102 spent culture media from day 2 human embryos and corresponding unexposed media for blank control. INTERVENTION(S)...

Youth civic identities and social media practices are changing rapidly, and civic organisations are struggling to exploit the potential of social media to reach youth. One major challenge concerns the generational culture gap between the networked culture of today’s youth and the top–down culture characteristic of many civic organisations. This study presents lessons learnt from three cases whe...

plant tissue culture technique could provide sterile and controllable condition in order to assay direct effect of different compounds on plant growth accurately. in this study, the effects of aqueous extracts prepared from roots and shoots of goosefoot (chenopodium album l.), redroot pigweed (amaranthus retroflexus l.), fennel (foeniculum vulgare), and wormwood (artemisia absinthium l.) were e...