Cortical Folding On Medial Surface Of Foetal Brain At Different Gestational Age

Background: Cortical folding is a hallmark of many but not all mammalian brains. The degree of folding graduallyincreases with the size of brains in mammals but at different range between the families.Gyrification is a processwhich varies widely in mammals in early foetal and prenatal life.Materials: This study was conducted on 100 dead foetuses in anatomy department, brought from the departmentof Obstetrics and gynaecology of MNR Medical College and Hospital.Results: The brain surface is smooth up to 12 weeks,Cingulate sulcus appeared by 16-18weeks.Growth of adjoininglobes of brain make surface more convoluted with well-defined sulci and gyral pattern between 30-32 weeks.Conclusion: Cortical folding is due to consequence of restricted space and rapid growth of brain with in thecranial cavity. There is no differences between male and female brains of same gestational age, with no obviousasymmetrical development of gyri on different lobes of brain

Groundwater quality assessment in different land-use areas of Faridabad and Rohtak cities of Haryana using deviation index.

Physico-chemical parameters were analysed to evaluate the groundwater quality of the two important cities of Haryana, Faridabad and Rohtak, and the pollution status of groundwater was compared using deviation index (DI). Groundwater of both the cities had high alkalinity, hardness, total dissolved solids (TDS) and electrical conductivity. The groundwater of Faridabad showed low fluoride concentration whereas in 74% of groundwater samples of Rohtak the fluoride levels were high. Land use and waste disposal practices were found to have an important effect on groundwater pollution.

Water quality index and suitability assessment of urban ground water of Hisar and Panipat in Haryana.

Ground water quality in two well-developed cities of Haryana, viz. Hisar and Panipat was assessed for drinking purpose based on water quality parameters like pH, EC, turbidity, TDS, alkalinity, total hardness, calcium (Ca), magnesium (Mg), sodium (Na), potassium (K), chloride (Cl), nitrate (NO3), phosphate (PO4), sulphate (SO4) and fluoride (F) with respect to different land-use areas viz. residential, industrial, commercial and agricultural. Water quality index based on 9 parameters showed that at Panipat, underground water in all the land-use zones was fit for consumption (WQI < 50), whereas at Hisar, water in agricultural areas was good in quality, but that in other areas varied in magnitude of pollution (WQI > 50 to 100).

Rhizobium strains expressing uptake hydrogenase in different host species of cowpea miscellany.

Uptake hydrogenase activity in nodules of green gram (Vigna radiata (L.) (Wilczek)), black gram (Vigna mungo (L.) (Hepper)), cowpea (Vigna unguiculata (L.) and cluster bean (Cyamopsis tetragonoloba (L.) (Taub.)), formed with two Hup+ (S24 and CT2014) and one Hup– (M11) Rhizobium strains, was determined at different levels of external H2 in air atmosphere. Nodules of all the 4 host species formed by inoculation with strains S24 and CT2014, showed H2 uptake but not those formed with strain M11. H2 uptake rates were higher in 1 and 2% H2 in air atmosphere (v/v) than at 5 or 10% levels in all the host species. Variations in the relative rates of H2 uptake were observed both, due to host species as well as due to Rhizobium strains. However, no host dependent complete repression of the expression of H2 uptake activity was observed in nodules of any of the host species formed with Hup+ strains.