Certain straiiis of mice are particularly susceptible to the development of spontaneous mammary gland adenocarcinoma. Other straiiis show a marked resistance to such atypical growths. The predisposition to tumor development thus appears to be determined at least part ially by hereditary fact or s. That the predisposition to tumor incidence might be determined or indicated by structural or devel...

Chenodesoxycholic and ursodesoxycholic acids are a-3, a-7and a-3, /-7-dihydroxycholanic acids, respectively' and so they are C7epimers. In the previous papers`' we have reported that both epimeric acids underwent dehydration by means of concentrated hydrochloric acid as well as of metal chlorides, and that chenodesoxycholic acid, because of trans elimination, was dehydrated much more easily tha...

crop productivity, water use efficiency (wue), and microbial biomass c and n in rainfed dry area are influenced by tillage, rotation, and crop residue management. field experiments were conducted during 2005-08 to study the effect of tillage, crop rotation, and crop residue retention on oat fodder yield, water use efficiency, and microbial biomass c (mbc) and n (mbn) under semi-arid conditions ...

in our study of surface markers of iranian children affected by acute lymphocytic leukemia, the majority(80 %)had non-t, non-b, or null cell leukemia. the null- cell l e ukemia had a better p r ogno s l s as was conf irmed by o t h ers. twe l v e of our patie nts who had null cell l e ukem i a are a live and well 18 mont hs to 20 mont hs a f t e r initiat i on of the r a py. three of t he patie...

to determine the usefulness of the time intervals obtained from the first derivative of apex cardiogram (da/dt) in assessing contraction and relaxation, 20 hemodynamically and angiographical1y investigated patients with coronary artery disease and 29 patients with hypertensive heart disease were studied. as a control group there were used 50 normal subjects. since contraction and relaxation is ...

In recent years, electrochemical supercapacitors have received considerable attention from many researchers. Metal oxides such as chromium oxide with high redox activity, high specific capacity, and excellent reversibility are suitable alternatives to ruthenium oxide in supercapacitor applications. In this study, first, graphene oxide (GO) was synthesized by the modified Hummers method. The syn...

We address the problem of structural model identification during normal operating conditions and thus with uncontrolled, unmeasured, and nonstationary excitation. We advocate the use of output-only and covariance-driven subspace-based stochastic identification methods. We explain how to handle nonsimultaneously measured data from multiple sensor setups, and how robustness with respect to nonsta...

The ATP-sensitive K+ channel (KAT, channel), a particular class of K + channel inhibited by intracellular ATP, was first described in cardiac muscle [ 11 and has subsequently been found in pancreatic B-cells [2], skeletal muscle [3], smooth muscle [4] and central neurons [ 5 ] . There is considerable evidence that this channel plays an essential role in the regulation of insulin secretion from ...