A B S T RA C T Potential difference, resistance, cation content, and S6Rb efflux were measured in frog lenses maintained in normal or calcium-free EGTA Ringer's solution. Exposure of the lens to calcium-free solution resulted in a rapid fall in potential and resistance, together with a twofold increase in ~Rb efflux rate. These rapid changes were not due to an alteration in cation distribution ...

Inspite of progress in diagnosis, treatment prostate cancer has become one of the most frequent lethal cancers in males. Rate of detection of prostate cancer varies widely across the world. Research on molecular biology of prostate cancer is expected to give new insight of improving, distinguishing slow growing from aggressive clinically relevant cancers and provide target for treatment. Tradit...

the northwestern part of the kerman cenozoic magmatic arc (kcma) contains many areas with porphyry copper mineralization. in this research, we used the advanced space-borne thermal emission and reflection radiometer (aster) and enhanced thematic mapper plus (etm+) images of this region to map the distribution of hydrothermally altered rocks, based on their mineral assemblages. the spectral meas...

sakhtehesar mountain is located in urumieh-dokhtar magmatic belt and is composed of volcanic and subvolcanic rocks (pliocene andesite to dacite) which intruded the volcanics and pyroclastics of paleocene age. three alteration zones including potassic, phyllic and propylitic are recognized in the area. in this paper, the mineral chemistry of magmatic and primary biotite and the mineral chemistry...

The conditions for synchronous transformation of chick embryo cells by infection with Rous sarcoma virus are studied. Two factors, the treatment of cells with DEAE-dextran and the use of cells which grow rapidly following virus infection, are found to be most important. Under the conditions described, the Schmidt-Ruppin strain of Rous sarcoma virus at a multiplicity of higher than 5 induces mor...

Potential difference, resistance, cation content, and 86Rb efflux were measured in frog lenses maintained in normal or calcium-free EGTA Ringer's solution. Exposure of the lens to calcium-free solution resulted in a rapid fall in potential and resistance, together with a twofold increase in 86Rb efflux rate. These rapid changes were not due to an alteration in cation distribution between the le...

ABSTRACT To understand the effects of low dose-rate radiation on genome structure in vivo, we examined gene mutation and chromosomal abnormality in mouse tissues. The mutation was studied on transgenes in the spleen and liver and also on the Dlb1 gene in intestinal stem cells. The mice were irradiated for 483 consecutive days at three dose-rates of 0.0323, 0.65, and 12.5 μGy/min, which resulted...

Bacterial profile modification is an important enhanced oil recovery technique used to direct injected water into a reservoir's low permeability zone containing trapped crude oil. During water flooding, the use of bacteria to plug the high permeability water zone and divert flow into the oil-bearing low-permeability zone will have a significant economic impact. However, during the field impleme...

Acute toxicity of commercial grade organophosphate insecticide, quinalphos (25% emulsified concentration) to common carp (Cyprinus carpio) was tested through bioassay. The acute toxicity of quinalphos to the fingerlings exposed for 96 hr was found to be 2.75 ppm. For sub lethal toxicity study, the fish were exposed to two concentration viz., 1/10th of LC50 (0.275 ppm) and 1/5th of LC50 (0.55 pp...

GUPTA, P.D.,J.P. HENRY, R. SINCLAIR,AND R. VON BAUMGARTEN. Responses of atrial and aortic baroreceptors to nonhypotensiue hemorrhage and transfusion. Am. J. Physiol. 21 I (6) : Ipg-1437. 1g66.-The activity of aortic and atria1 type B baroreceptors was compared in 2 I experiments in 15 chloralose-in-saline anesthetized dogs in the course of stepwise bleeding and transfusion. When the alteration-...