The effect of mass loading on the phase velocities of the surface acoustic wave dispersion modes in the Me/ZnO/Me/diamond piezoelectric layered structure as a function of frequency, metallic, and piezoelectric layer thickness has been investigated. Aluminum, molybdenum, and platinum were considered as the metallic layer materials. It has been demonstrated that the change in the phase velocities substantially depends on the acoustic impedance of the metal layer and its thickness. Results obtained can be useful in the development of controlled acoustoelectronic devices and sensors operating on the Rayleigh and Love waves.

Organic dyes are frequently used in various industries such as textiles, medicines, plastics, etc. and contribute as a major source of environmental pollutants, which leads to harmful effects on livings. Therefore, in this study, a Sn-doped CeO2-Fe2O3 photocatalyst was synthesized using the thermal decomposition method and applied for the effective degradation and removal of rhodamine B dye under solar irradiation. The as-synthesized catalyst was characterized by powder X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), Brunauer-Emmett-Teller (BET) and UV-vis diffuse reflectance (UV-vis DRS) techniques. The particle size of the photocatalyst was found 1-2 μm with a high surface area. The band gap energies of the catalyst narrowed to 2.2 eV after the Sn doping. The doping of Sn4+ ions into CeO2 lattice leads to the enhanced photocatalytic activity of CeO2-Fe2O3 composite by modified the Fermi levels of catalyst. The catalyst has shown a fast degradation rate under solar irradiance and is able to perform complete degradation of rhodamine B dye. The photocatalyst showed the COD removal up to 96% from the dye solution. Further, the scavenger test revealed the active species hydroxyl (•OH) and superoxide (O2 •−) radical are involved in the degradation of rhodamine B dye. The complete degradation of rhodamine B dye was studied and confirmed by high-performance liquid chromatography. A plausible mechanism is proposed for the degradation process and charge transfer during the degradation.

Present study describes the synthesis of cyanuric chloride based four active chiral reagents (ACRs) and their application in the enantiomeric separation of (RS)-mexiletine. Herein, four cyanuric chloride-based ACRs were prepared by introducing L-proline derivatives under nucleophilic substitution reaction. The synthesized ACRs were characterized by different spectroscopic techniques. Racemic mexiletine hydrochloride was used for the enantio-recognition study. All the four ACRs were used to convert (RS)-mexiletine into related diastereomeric derivatives and then separated on the C18-column of RP-HPLC. The different parameters such as sample amount, the concentration of mobile phase, organic modifier and pump pressure were varied to optimize separation conditions. The energy-minimized structures of synthesized diasteromeric derivatives (DDs) were developed using DFT calculations. The validation study was conducted for the developed method and correlation-coefficient, calibration range, LOD and LOQ calculated. The stability and recovery were calculated by inter and intraday assay.

This study examined the relationship patterns of psychological characteristics, clinical and biological indicators, their relationship in the structure of the personality of epilepsy patients. The aim of this work was to study the ratio of biological and clinical and psychological components in the structure of a person suffering from epilepsy. Such characteristics was conducted as the type of disease seizures and duration of the disease were taken into account: simple, complex partial seizures, duration of the disease up to 30 years dominated. The verification of the diagnosis in the patients examined was carried out on the basis of clinical and neurological, psychopathological, pathopsychological, EEG examination and computer tomography data of the brain. The study of biological, clinical and psychological characteristics of epileptic patients was carried out using the method of clinical observation, psychodiagnostic method “Diagnosis of satisfaction of basic needs.” In patients with epilepsy revealed reliable multidimensional clinical and psychological characteristics of satisfaction of the main groups of needs: material needs, security needs, social (interpersonal) needs, the need for recognition, the need for self- expression.The considered characteristics are of interest to doctors, clinical psychologists and other professionals involved in preventive, therapeutic and rehabilitation measures of epilepsy patients.

Ketalization of benzophenones with epichlorohydrin or 3 chloropropane 1,2 diol gave 2,2 diaryl 4 chloromethyl 1,3 dioxolanes, which were used to alkylate sodium salts of imid azole or 1,2,4 triazole. The resulting 1 [(2,2 diaryl 1,3 dioxolan 4 yl)methyl] 1H azoles ex hibit high fungicidal activities.