Cell cycle progression of G2 fractions (75-80% G2 (4C) cells) from 8 h anaerobically cultured asynchronous hyperdiploid Ehrlich ascites tumor cells strain Karzel, separated by centrifugal elutriation, was studied after reaeration by flow cytometric methods, including the BrdU-H33258 technique and dual parameter measurements. Analyses of the growth kinetics demonstrated that one fraction of the ...

Abstract Dry–wet alternate constructed wetland is an effective method to remove nitrogen elements in the tail water of sewage treatment plant. According reaeration mechanism wet–dry alternative wetland, denitrification effect and influence characteristics dry–wet on plant were studied under low temperature. The results showed that removal rates each element reached 20–40% with time at 10°C. Und...

The concentration of oxygen dissolved in water affects aquatic organisms. Unrestrained logging and site preparation can depress (DO) concentrations adjacent streams by elevating temperatures (with removal riparian shade), impounding channels (reduced reaeration rates), introducing fresh, oxygen-depleting slash. One the first paired watershed studies investigating use streamside management zones...