New Metastable Baro- and Deformation-Induced Phases in Ferromagnetic Shape Memory NiMnGa-Based Alloys.

Structural and phase transformations in the microstructure and new metastable baro- and deformation-induced phases of the NiMnGa alloy, typical of the unique class of ferromagnetic shape memory Heusler alloys, have been systematically studied for the first time. Phase X-ray diffraction analysis, transmission and scanning electron microscopy, and temperature measurements of electrical resistivity and magnetic characteristics in strong magnetic fields were used. It was found that in the course of increasing the pressure from 3 to 12 GPa, the metastable long-period structure of martensite modulated according to the 10-type experienced transformation into a final non-modulated 2 structure.

METHODS OF REDUCING REFLEX REACTIONS CAUSED BY THE ENDOTRACHEAL TUBE.

The Aim: to assess the effectiveness of the two methods reducing the level of reactions caused by the endotracheal tube in the airway.

Materials And Methods: A prospective investigation in intraoperative and early postoperative periods during gynecological surgery was performed. In groups with anti-reflective tube (ARETT), endotracheal tube with the introduction of local anesthetic, and in the control group were evaluated hemodynamic parameters, frequency ofpostoperative nausea and vomiting, sore throat, cough, hoarseness, dysphagia, level of agitation and sedation (RASS) and the subjective reactions ofpatients on the handset.

Synthesis of lipophilic dimeric C-7/C-7-linked ciprofloxacin and C-6/C-6-linked levofloxacin derivatives. Versatile in vitro biological evaluations of monomeric and dimeric fluoroquinolone derivatives as potential antitumor, antibacterial or antimycobacterial agents.

The synthesis of C-7/C-7-linked ciprofloxacin (CP) and C-6/C-6-linked levofloxacin (LV) derivatives with modulated lipophilicity is described herein. The synthesized compounds, along with the monomeric analogs described previously, were evaluated in vitro for (i) their growth inhibitory effect against five human cancer cell lines, (ii) their antibacterial activity against Gram-positive Staphylococcus aureus and Enterococcus hirae and Gram-negative Escherichia coli and Pseudomonas aeruginosa strains and (iii) their antimycobacterial activity. The most efficient derivatives as antiproliferative agents (C-7/C-7-linked CP 7e and C-6/C-6-linked LV 11f) displayed IC(50) values in the 0.

Metamagnetic transitions in electron-doped single crystals of manganites Ca(1-x)(Ln)(x)MnO3, (Ln = La, Ce; x ≤ 0.12).

The magnetization curves of Ca(1-x)(Ln)(x)MnO(3) single crystals, where Ln denotes La or Ce, x ≤ 0.12, have been measured in pulsed magnetic fields up to 350 kOe. The metamagnetic transitions for compositions with x = 0.