Diode-pumped laser altimeter

TEM(sub 00)-mode output energies up to 22.5 mJ with 23 percent slope efficiencies were generated at 1.064 microns in a diode-laser pumped Nd:YAG laser using a transverse-pumping geometry. 1.32-micron performance was equally impressive at 10.2 mJ output energy with 15 percent slope efficiency. The same pumping geometry was successfully carried forward to several complex Q-switched laser resonator designs with no noticeable degradation of beam quality. Output beam profiles were consistently shown to have greater than 90 percent correlation with the ideal TEM(sub 00)-order Gaussian profile. A comparison study on pulse-reflection-mode (PRM), pulse-transmission-mode (PTM), and passive Q-switching techniques was undertaken. The PRM Q-switched laser generated 8.3 mJ pulses with durations as short as 10 ns. The PTM Q-switch laser generated 5 mJ pulses with durations as short as 5 ns. The passively Q-switched laser generated 5 mJ pulses with durations as short as 2.4 ns. Frequency doubling of both 1.064 microns and 1.32 microns with conversion efficiencies of 56 percent in lithium triborate and 10 percent in rubidium titanyl arsenate, respectively, was shown. Sum-frequency generation of the 1.064 microns and 1.32 microns radiations was demonstrated in KTP to generate 1.1 mJ of 0.589 micron output with 11.5 percent conversion efficiency

Structural Components of Creative Potential of University Pedagogical Personnel

The article deals with the specifics of professional activity of pedagogical personnel and structural components of creative potential have been marked; specific statistically significant criteria of evaluation have been found out, pedagogical reserves of educational process of improving and developing of creative potential of pedagogical personnel. Conditionally components of creative potential of pedagogical personnel have been marked, creative potential of pedagogical personnel have been evaluated. Pedagogical Pedagogical of educational process of improving and developing of creative potential of pedagogical personnel have been offered.

Internationalisation and modernisation of processes in the higher education

This article studies the aspects of the improvement in higher education in terms of advanced foreign experience. It deals with the organizational-methodical, contented aspects and the basic directions of modernization and implementation of modern curricula, and the programs of educational directions.

SIMULATION OF WOUND PROCESS IN EXPERIMENTAL SURGERY

Aim. To study morphological changes in aseptic and purulent soft-tissue wounds using the developed models in animal experiments.Materials and methods. The study was conducted on 70 white non-linear laboratory male rats aged 5 months and weighing 300–350 g. All the investigations were performed in accordance with ethical norms and documents regulating animal experiments. An experimental wound was simulated with the introduction of an implant into soft tissues using a layer-by-layer incision to the required depth. A sterile hydrophilic polymer implant was used for simulating an aseptic wound. A purulent wound was simulated using a porous polymer implant initially saturated with a suspension of a bacterial pathogen at a concentration of 10 5–10 12 microbial cells per 1 ml of suspension. The wounds were sutured layer by layer to form corresponding models. The implants was removed surgically on the 7th day. Statistical analysis of the study results was carried out by Windows 10 operating system using STATISTICA 6.1 (StatSoft Inc., USA) and Excel (Microsoft Offi ce 2010). The hypothesis of normal cumulative distribution in the samples was verifi ed via the Shapiro — Wilk and Kolmogorov — Smirnov tests. The signifi cance level threshold was set to p<0.05. Differences between quantitative parameters with a normal distribution were evaluated using the Student’s t-test, whereas independent samples were assessed via the non-parametric Mann — Whitney test. In all cases, differences were considered statistically signifi cant at p<0.05. The signifi cance level of the relationship between the two qualitative variables was verifi ed using the Pearson’s chi squared test (χ2 ). The study was approved at a meeting of the Independent Ethics Committee of the Kuban State Medical University (Minutes No. 63 of 21 May 2018).Results. The analysis of the obtained results has allowed optimal models for the formation of aseptic and purulent soft-tissue wounds in animal experiments to be selected.Conclusion. The proposed method of modeling aseptic and purulent wounds in animal experiments can be used in clinical and morphological studies of the wound process, as well as in assessing the effectiveness of various wound treatment methods