background and aims. the aim of the present study was to compare 1.3% sodium hypochlorite (naocl) in mtad (mixture of tetracycline isomer, acid, and detergent) for the removal of the smear layer and induction of canal erosion. materials and methods. 38 maxillary incisors were divided in three experimental groups of 10 and two positive and negative control groups of each 4 teeth, and prepared us...

The intercalation of tetrabutylammonium (TBA) cations into graphite by cation exchange from a sodium-ethylenediamine graphite intercalation compound yields a single-phase first-stage product, C(44)TBA, with a gallery expansion of 0.47 nm. The gallery dimension requires an anisotropic "flattened" cation conformation.

The Jahn-Teller distorted Cu(II) complex [Cu(en)2](OTf)2 1 (en = 1,2-diaminoethane) has been reported and characterised using X-ray crystallography, EPR and ENDOR spectroscopy, and DFT calculations. The solid state structure shows an intra- and inter-molecular hydrogen-bonded network via the N-H groups and the coordinated triflate anions. CW and pulsed EPR/ENDOR were used to determine the spin ...

There are very few materials that exhibit zero thermal expansion (ZTE), and of these even fewer are appropriate for electronic and optoelectronic applications. We find that a multifunctional crystalline hybrid inorganic-organic semiconductor, beta-ZnTe(en)(0.5) (en denotes ethylenediamine), shows uniaxial ZTE in a very broad temperature range of 4-400 K, and concurrently possesses superior elec...

Cheyne-Stokes respiration, found associated with cardiac failure, has been attributed to cerebral anoxia (1) on the basis of decreased cerebral blood flow, which is depressed in proportion to the decrease in cardiac output (2). Since Aminophylline increases cardiac output (3) and at the same time arrests Cheyne-Stokes respiration (4), it seems logical to conclude that the latter response occurs...

Carbon active chemically bonded ethylenediamine as one sorbents successfully were applied for the enrichment of trace amount of some metal ions. The influences of the variables including pH, amount of solid phase, sample flow rate, type and condition of eluting solution and sample volume on the metal ions recoveries were investigated. The method has high sorption-preconcentration efficiency eve...

The first investigation of the microwave spectrum of ethylenediamine (NH CH –CH NH ) showed that in the gas phase this molecule occurs in two conformers which both exhibit a large amplitude tunneling motion corresponding to an interchange of the roles of the amino groups. In conformer I, the tunneling splitting is about 172 MHz while it is only 2.7 MHz in conformer II. In the paper an analysis ...

Abstract Background Cyclin-dependent kinases 2/4/6 (CDK2/4/6) play critical roles in cell cycle progression, and their deregulations are hallmarks of hepatocellular carcinoma (HCC). Methods We used the combination computational experimental approaches to discover a CDK2/4/6 triple-inhibitor from FDA approved small-molecule drugs for treatment HCC. Results identified vanoxerine dihydrochloride a...

The purpose of the study . Investigation effect fabomotizol dihydrochloride systematic therapy on morphological picture heart left ventricle (LV) in rats subacute period myocardial infarction. Materials and methods Myocardial infarction (MI) modeling was carried out using A.Selye method. Fabomotizol administered to intraperitoneally 1 time per day from 15th 28th after MI at a dose 15 mg/kg. At ...