Subhasish Das

Surface active properties of the culture filtrates of a Micrococcus species grown on n-alkanes and sugars

The surface active properties of the culture filtrates (from shake flash fermentation for 140 h at 37 ± 1°C) of a species of Micrococcus are described in terms of surface tension, emulsification and foamability using carbon sources, such as n-dodecane, n-tetradecane, n-hexadecane and n-octadecane as the different n-alkanes, and sucrose, fructose, glucose and mannose as the different sugars. The surface tension for the culture filtrate was lowest with dodecane (45·2 mN m−1) followed by tetradecane (49·1 mN m−1), hexadecane (50·8 mN m−1) and octadecane (58·3 mN m−1) among the n-alkanes; for the sugars, sucrose had the lowest value (51·4 mN m−1) followed by fructose (52·8 mN m−1), mannose (57·3 mN m−1) and glucose (57·5 mN m−1). All the n-alkane systems showed 70–80% emulsification of a test mixture composed of equal volumes of kerosene and the respective culture filtrate. But only 84 and 50% of the formed emulsions with tetradecane and dodecane, respectively, remained stable during 48 h of ageing. Although the culture filtrate of fructose showed the highest initial emulsification of 62% among the sugars, almost no decay of the formed emulsion (41%) was observed with that of sucrose. Foamability noted with a single nozzle spurger was appreciable with the sucrose and fructose systems, but negligible with the n-alkane systems.

Geochronology of the 983‐Ma Chilka Lake Anorthosite, Eastern Ghats Belt, India: Implications for Pre‐Gondwana Tectonics

U‐Pb zircon dating indicates that the Balugaon Anorthosite Massif of the Chilka Lake Domain, Eastern Ghats Belt, India, crystallized at \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape

The Banpur-Balugaon and Bolangir Anorthosite Diapirs of the Eastern Ghats, India: Implications for the Massif Anorthosite Problem

983.0\pm 2.5

Peripheral blood lymphocyte subpopulations in patients with cervical cancer

\end{document} Ma, ∼200 m.yr. earlier than previously inferred from ferrodiorite that intruded the massif. An integration of the new date with published structural data indicates that the anorthosite intruded a crust that was deformed twice before the intrusion. Furthermore, U‐Th‐Pb chemical dating of monazite cores ( \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape

Tattekere conglomerate–quartzite association: origin and stratigraphic position of a disputed Archean formation in the supracrustals of Karnataka, India

714\pm 11

Study on life cycle of a sporogenous probiotic bacterium in mammalian gastrointestinal tract with image processing analysis

\end{document} Ma) and rims ( \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape