[Fast track recovery protocols for extended pelvic surgery].

Objective: To compare the immediate results of extended pelvic surgery before and after introduction of standardized fast track surgery (FTS) protocol into routine clinical practice.

Material And Methods: The study included 111 patients with pelvic tumors who underwent extended pelvic surgery. The control group included 59 patients whose perioperative management implied traditional approaches (2018-2019), the main group - 52 patients with FTS protocol (2020-2021).

A hybrid model of complexity estimation: Evidence from Russian legal texts.

This article proposes a hybrid model for the estimation of the complexity of legal documents in Russian. The model consists of two main modules: linguistic feature extractor and a transformer-based neural encoder. The set of linguistic metrics includes both non-specific metrics traditionally used to predict complexity, as well as style-specific metrics developed in order to deal with the peculiarities of official texts.

[Medical rehabilitation for children with scoliosis].

The article presents a literature review on the prevalence, relevance, social significance, and principles of medical rehabilitation of children with different types of scoliosis in scoliotic disease. The current classification, diagnostics features, and clinical course of the disease are addressed. Current approaches to the choice of medical rehabilitation methods for scoliotic disease in children are described: therapeutic exercise, hydrokinesiotherapy, massage, physiotherapeutic treatment, kinesiotaping, and corseting.

[The alteration of the structure of mortality of endocrine system diseases, nutrition disorders and metabolic disturbances in individuals of able-bodied age and older in conditions of pandemic].

The elderly age and endocrine diseases are among death risk factors at contamination with new coronavirus infection. To reply the question of how the influence of these risk factors is summing up, differences were determined concerning patterns of changes in structure of mortality of endocrine system diseases, nutrition disorders and metabolic disturbances in individuals of able-bodied age and older against the background of COVID-19 pandemic. on the basis of information from the Moscow database of deaths of endocrine system diseases, nutrition disorders and metabolic disturbances, the changes in contribution of individual diseases to the death causes structure in 2019-2021 were analyzed.

Self-gain-modulation random distributed feedback Raman fiber laser with switchable repetition rate.

We experimentally demonstrate a pulsed operation in a random fiber laser operation via self-gain-switching. The pulses have low timing jitter and high average output power. We show that repetition rate switches abruptly while varying the pump power, and introduce a simple formula for oscillation frequencies.

[Quality of accounting of death causes for elderly people].

Programs to increase the life expectancy of old people are becoming increasingly relevant in an aging society. Their adequacy depends on the quality of accounting death causes. Objective: To evaluate the quality of accounting of death causes for population over the working age.

[C-reactive protein as early predictor of anastomotic leakage after surgery for colorectal cancer. Systematic review and meta-analysis].

Objective: Systematic review and meta-analysis of data on C-reactive protein (CRP) as a predictor of anastomotic leakage (AL) after surgery for colorectal cancer.

Material And Methods: Literature searching was performed in Medline, Elibrary, Scopus, Web of Science databases. Literature request consisted of keywords «CRP», «colorectal surgery», «anastomotic leakage» for the period 2008-2018.

[The mortality of diabetes mellitus from the perspective of multiple causes of death: encoding problems].

Unlabelled: The statistics of causes of death is the informational basis for identifying public health problems. That is why the accurately accounting for mortality from diabetes mellitus, which is a global medical and social problem for society, is important. The study was carried out to analyze the correctness of coding death causes of diabetes mellitus and the frequency of alleged death.

Vector-Resonance-Multimode Instability.

The modulation and multimode instabilities are the main mechanisms which drive spontaneous spatial and temporal pattern formation in a vast number of nonlinear systems ranging from biology to laser physics. Using an Er-doped fiber laser as a test bed, here for the first time we demonstrate both experimentally and theoretically a new type of a low-threshold vector-resonance-multimode instability which inherits features of multimode and modulation instabilities. The same as for the multimode instability, a large number of longitudinal modes can be excited without mode synchronization.

Rogue waves generation via nonlinear soliton collision in multiple-soliton state of a mode-locked fiber laser.

We report for the first time, rogue waves generation in a mode-locked fiber laser that worked in multiple-soliton state in which hundreds of solitons occupied the whole laser cavity. Using real-time spatio-temporal intensity dynamics measurements, it is unveiled that nonlinear soliton collision accounts for the formation of rogue waves in this laser state. The nature of interactions between solitons are also discussed.

Mode-locking via dissipative Faraday instability.

Emergence of coherent structures and patterns at the nonlinear stage of modulation instability of a uniform state is an inherent feature of many biological, physical and engineering systems. There are several well-studied classical modulation instabilities, such as Benjamin-Feir, Turing and Faraday instability, which play a critical role in the self-organization of energy and matter in non-equilibrium physical, chemical and biological systems. Here we experimentally demonstrate the dissipative Faraday instability induced by spatially periodic zig-zag modulation of a dissipative parameter of the system-spectrally dependent losses-achieving generation of temporal patterns and high-harmonic mode-locking in a fibre laser.

Laminar-Turbulent Transition in Raman Fiber Lasers: A First Passage Statistics Based Analysis.

Loss of coherence with increasing excitation amplitudes and spatial size modulation is a fundamental problem in designing Raman fiber lasers. While it is known that ramping up laser pump power increases the amplitude of stochastic excitations, such higher energy inputs can also lead to a transition from a linearly stable coherent laminar regime to a non-desirable disordered turbulent state. This report presents a new statistical methodology, based on first passage statistics, that classifies lasing regimes in Raman fiber lasers, thereby leading to a fast and highly accurate identification of a strong instability leading to a laminar-turbulent phase transition through a self-consistently defined order parameter.

Unveiling Temporal Correlations Characteristic of a Phase Transition in the Output Intensity of a Fiber Laser.

We use advanced statistical tools of time-series analysis to characterize the dynamical complexity of the transition to optical wave turbulence in a fiber laser. Ordinal analysis and the horizontal visibility graph applied to the experimentally measured laser output intensity reveal the presence of temporal correlations during the transition from the laminar to the turbulent lasing regimes. Both methods unveil coherent structures with well-defined time scales and strong correlations both, in the timing of the laser pulses and in their peak intensities.

Pattern Generation by Dissipative Parametric Instability.

Nonlinear instabilities are responsible for spontaneous pattern formation in a vast number of natural and engineered systems, ranging from biology to galaxy buildup. We propose a new instability mechanism leading to pattern formation in spatially extended nonlinear systems, which is based on a periodic antiphase modulation of spectrally dependent losses arranged in a zigzag way: an effective filtering is imposed at symmetrically located wave numbers k and -k in alternating order. The properties of the dissipative parametric instability differ from the features of both key classical concepts of modulation instabilities, i.

Radiation build-up in laminar and turbulent regimes in quasi-CW Raman fiber laser.

We study the radiation build-up in laminar and turbulent generation regimes in quasi-CW Raman fiber laser. We found the resulted spectral shape and generation type is defined by the total spectral broadening/narrowing balance over laser cavity round-trip, which is substantially different in different regimes starting from first round-trips of the radiation build-up. In turbulent regime, the steady-state is reached only after a few round-trips, while in the laminar regime the laser approaches the equilibrium spectrum shape asymptotically.

Spatio-temporal generation regimes in quasi-CW Raman fiber lasers.

We present experimental measurements of intensity spatio-temporal dynamics in quasi-CW Raman fiber laser. Depending on the power, the laser operates in different spatio-temporal regimes varying from partial mode-locking near the generation threshold to almost stochastic radiation and a generation of short-lived pulses at high power. The transitions between the generation regimes are evident in intensity spatio-temporal dynamics.

[Clinical and epidemiological analysis of multiple sclerosis in the Karaganda region].

Results of an analysis of inpatients with multiple sclerosis in neurological units of Karaganda hospitals from 2006 to 2013 are presented. The following characteristics were identified: higher percentage of women of the age of 24-34, the prevalence of primary progressive and secondary progressive forms of multiple sclerosis that are most prognostically unfavorable, the level of disability of 52%. Attention is drawn to the fact that only 14% of the patients participate in therapeutic programs.

Stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers.

Physical systems with co-existence and interplay of processes featuring distinct spatio-temporal scales are found in various research areas ranging from studies of brain activity to astrophysics. The complexity of such systems makes their theoretical and experimental analysis technically and conceptually challenging. Here, we discovered that while radiation of partially mode-locked fibre lasers is stochastic and intermittent on a short time scale, it exhibits non-trivial periodicity and long-scale correlations over slow evolution from one round-trip to another.

[The economic analysis of the total cost of rehabilitation of the patients suffering from coronary heart disease].

Objective: To report the results of analysis of the economic efficiency of physical rehabilitation of the patients surviving after myocardial infarction with the use of physical exercises.

Material And Methods: The study included 110 patients (mean age 58,3±9,8 years) who were randomized into two groups: the group where the patients were treated with the use of physical training (n=53) and the control group (n=57). The physical training included natural walking over the level ground at a speed corresponding to 60% of the maximum heart rate achieved during the initial 6 minute of the walking test.

[Optimization of surgical treatment of pelvic prolapse in women].

The study was aimed to improving the efficiency and reducing the incidence of complications after transvaginal pelvic reconstructive surgery with the installation of synthetic mesh prosthesis for pelvic organ prolapse. The study involved 228 patients with II-IV stage pelvic prolapse, of which 144 (63.2%) underwent surgery by the TVM (Tension-free Vaginal Mesh) method, and 84 (36.

Narrow-band generation in random distributed feedback fiber laser.

Narrow-band emission of spectral width down to ~0.05 nm line-width is achieved in the random distributed feedback fiber laser employing narrow-band fiber Bragg grating or fiber Fabry-Perot interferometer filters. The observed line-width is ~10 times less than line-width of other demonstrated up to date random distributed feedback fiber lasers.

[The application of pulsed magnetic stimulation in the rehabilitation of the children operated for the treatment of grade III-IV scoliosis].

In the present paper, we for the first time provide a rationale for the application of a new physical factor, pulsed magnetic stimulation, in pediatric practice. Our observations have demonstrated positive dynanfics of the parameters characterizing the functional state of the neuro-muscular apparatus and equalization of the amplitude of M-response as appears from the results of electromyographic studies. The data obtained by electrocardiography and estimation of the external respiratory function give evidence of favourable dynamics of the cardio-respiratory system.

[The role of AmtB, GlnK and glutamine synthetase in regulation of transcription factor TnrA in Bacillus subtilis].

The nitrogen is a macroelement for all alive cells, from bacteria to animals. Although NH3/NH4+ are highly toxic to animal, they are the preferred source of nitrogen for the most microorganisms and are assimilated by glutamine synthetase in the GOGAT cycle. The nitrogen limitation triggers a number of regulatory processes and activates many genes, providing the utilizing of alternative nitrogen sources.

[Efficacy of combined treatment of large prostatic adenoma with doxasozine and finasteride].

Combined treatment with doxasozine and finasteride was performed for 7.26 months in 38 patients with large-size prostatic adenoma (89.54 +/- 11.

[Choice of a surgical treatment of genital prolapse in women].

The trial enrolled 64 females with genital prolapse corrected in 2003-2007 with transvaginal synthetic aids. Urinary incontinence of effort was detected in 53.1% patients with cystocele.