[Genetic architecture of anterior abdominal wall hernias].

Objective: To analyze genome-wide studies devoted to polymorphisms of factors of anterior abdominal wall hernias, to study the association of the most common polymorphism In Russian population.

Material And Methods: Searching for literature data was carried out in the RSCI and PubMed databases. We enrolled national and foreign reports.

Ferroelectricity in Ultrathin Halide Perovskites.

Ferroelectricity has recently been demonstrated in germanium-based halide perovskites. We use first-principles-based simulations to study 4-18 nm CsGeBr films and develop a theory for ferroelectric ultrathin films. The theory introduces (i) a local order parameter, which identifies phase transitions into both monodomain and polydomain phases, and (ii) a dipole pattern classifier, which allows efficient and reliable identification of dipole patterns.

Coupling of the Structure and Magnetism to Spin Splitting in Hybrid Organic-Inorganic Perovskites.

Hybrid organic-inorganic perovskites are famous for the diversity of their chemical compositions, phases, phase transitions, and associated physical properties. We use a combination of experimental and computational techniques to reveal a strong coupling between structure, magnetism, and spin splitting in a representative of the largest family of hybrid organic-inorganic perovskites: the formates. With the help of first-principles simulations, we find spin splitting in both conduction and valence bands of [NHNH]Co(HCOO) induced by spin-orbit interactions, which can reach up to 14 meV.

The role of psychological characteristics of the personality of patients with colorectal cancer in the timeliness of diagnosis verification and prognosis of disease outcome.

Objective: Colorectal cancer (CRC) has become the third most commonly diagnosed type of cancer in the world. Based on the risk factors for colorectal cancer (behavior, lifestyle), it is important to better understand the behavioral and psychological characteristics of the individual associated with timely seeking medical help, coping with the extreme situation of diagnosis, and the course of the disease. This determined the purpose of the study: identify the psychological characteristics of patients with colorectal cancer associated with the stage of diagnosis verification and the prognosis of disease outcome.

Enhanced Piezoelectric Response at Nanoscale Vortex Structures in Ferroelectrics.

The piezoelectric response is a measure of the sensitivity of a material's polarization to stress or its strain to an applied field. Using X-ray Bragg coherent diffraction imaging, we observe that topological vortices are the source of a 5-fold enhancement of the piezoelectric response near the vortex core. The vortices form where several low-symmetry ferroelectric phases and phase boundaries coalesce.

Subjective and Personal Characteristics of Women with Breast Cancer: A Factorial Model of Disease Risks and the Course of Disease.

Objective: The purpose of this study was to evaluate psychological factors influencing the incidence of breast cancer in women.

Methods: Basic beliefs, coping strategies, hardiness, subjective control, personal helplessness and independence were studied in 184 women, of which 80 women diagnosed with breast cancer, 104 women without a cancer diagnosis. All study participants completed psychodiagnostic methods and sociodemographic questionnaires.

Persistent and Quasipersistent Spin Textures in Halide Perovskites Induced by Uniaxial Stress.

Persistent spin textures are highly desirable for applications in spintronics, as they allow for long carrier spin lifetimes. However, they are also rare, as they require a delicate balance between spin-momentum coupling parameters. We used density functional theory simulations to predict the possibility of achieving these desirable spin textures through the application of uniaxial stress.

First-principles property assessment of hybrid formate perovskites.

Hybrid organic-inorganic formate perovskites, AB(HCOO)3, are a large family of compounds that exhibit a variety of phase transitions and diverse properties, such as (anti)ferroelectricity, ferroelasticity, (anti)ferromagnetism, and multiferroism. While many properties of these materials have already been characterized, we are not aware of any study that focuses on the comprehensive property assessment of a large number of formate perovskites. A comparison of the properties of materials within the family is challenging due to systematic errors attributed to different techniques or the lack of data.

[The impact of antiepileptic therapy on sleep disorders in women with epilepsy].

Objective: To analyze the frequency of various sleep disorders in patients with epilepsy receiving antiepileptic therapy.

Material And Methods: Sixty-four women were selected from the register of patients with epilepsy and other paroxysmal conditions. The group consisted of young and middle-aged women (36.

[The psychological factors of renunciation of antitumoral therapy by women with breast cancer (international publications review)].

The article presents analytical review of studies considering problem of patient refusal from antitumoral treatment, in particular of women with breast cancer. The analysis of main results of empirical studies describes factors associated with patient refusal from treatment. Among factors affecting decision making related to patient voluntarily refuse of treatment are toxicity of treatment (nausea and vomiting), senile age, disease stage, availability and type of medical insurance, characteristics of family status.

[Possibilities of optimizing therapy in COVID-19 survivors with focal epilepsy].

Objective: To study the effect of phenosanoic acid therapy on the frequency of seizures, asthenia and quality of life of adult patients with focal epilepsy who had a new coronavirus infection caused by SARS-CoV-2.

Material And Methods: The data of 20 patients with focal epilepsy who suffered COVID-19 and received therapy with phenosanic acid (Dibufelon) were studied. The frequency of epileptic seizures, the severity of asthenia and the quality of life were evaluated according to clinical scales.

[The psychological and environment risk factors of development of breast cancer in women residing in industrial megalopolis and rural locality].

The breast cancer hold leading position in the structure of oncological morbidity of women worldwide. The purpose of the study is to analyze contribution of psychological and environmental factors to risk of development of breast cancer in women residing in industrial metropolis and rural locality. The actuality of the study is conditioned by acquisition of new knowledge about risk factors of breast cancer.

Psychological predictors of favorable and unfavorable disease course of prostate cancer: results of a pilot study.

Objective: The statistical data on the incidence and mortality rates from prostate cancer leave gaps in understanding the causal risk factors for the unfavorable course of the disease determined the relevance of this work, determined the purpose of the study: to identify psychological predictors of favorable and unfavorable courses of prostate cancer.

Patients And Methods: Basic beliefs, coping, quality of life, level of subjective control, resilience, life orientation, as well as socio-demographic characteristics were analyzed in 124 men with different courses of the disease. Firstly, the psychological characteristics of men with prostate cancer with a favorable or unfavorable course were compared, and secondly, psychological predictors were identified and their contribution to the course of prostate cancer was assessed.

Ferrielectricity in the Archetypal Antiferroelectric, PbZrO.

Antiferroelectric materials, where the transition between antipolar and polar phase is controlled by external electric fields, offer exceptional energy storage capacity with high efficiencies, giant electrocaloric effect, and superb electromechanical response. PbZrO is the first discovered and the archetypal antiferroelectric material. Nonetheless, substantial challenges in processing phase pure PbZrO have limited studies of the undoped composition, hindering understanding of the phase transitions in this material or unraveling the controversial origins of a low-field ferroelectric phase observed in lead zirconate thin films.

Clinical and neurophysiological characteristics of 89 patients with narcolepsy and cataplexy from the Russian Narcolepsy Network.

Study Objectives: The first reports of narcolepsy with cataplexy in Russia were made by Mankovsky (The pathogenesis of narcolepsy (the case of epidemic encephalitis with cataplexy) published in the Sovremennaya psihonevrologia) in 1925. The largest series of patients (n = 110) was reported by A. Vein (doctoral thesis: Hypersomnia Syndrome) in 1964.

Negative Longitudinal Piezoelectricity Coexisting with both Negative and Positive Transverse Piezoelectricity in a Hybrid Formate Perovskite.

Negative longitudinal piezoelectric response is a rare property, which has been found mostly in inorganic materials. We use first-principles density functional theory simulations to predict such an unusual response in [NHNH]Co(HCOO) ─a representative of a large family of hybrid organic-inorganic formate perovskites. A feature that sets aside [NHNH]Co(HCOO) from inorganic compounds with a negative longitudinal piezoelectric response is that this rare property coexists with both negative and positive transverse piezoelectric responses, which is highly desirable for tunable applications.

Negative Linear Compressibility in Organic-Inorganic Hybrid Perovskite [NHNH]X(HCOO) (X = Mn, Fe, Co).

Hybrid organic-inorganic perovskites [NHNH][X(HCOO)] (X = Mn, Fe, Co) have a so-called "wine-rack" type of geometry that could give origin to the rare property of negative linear compressibility, which is an exotic and highly desirable material response. We use first-principles density functional theory computations to probe the response of these materials to hydrostatic pressure and predict that, indeed, all three of them exhibit negative linear compressibility above a critical pressure of 1 GPa. Calculations reveal that, under pressure, XO octahedra and -HCOO ligands remain relatively rigid while XO octahedra tilt significantly, which leads to highly anisotropic mechanical properties and expansion along certain directions.

Unusual Properties of Hydrogen-Bonded Ferroelectrics: The Case of Cobalt Formate.

Hybrid organic-inorganic perovskites is a class of materials with diverse chemically tunable properties and outstanding potential for multifunctionality. We use first-principles simulations to predict room temperature ferroelectricity in a representative of the formate family, [NH_{2}NH_{3}][Co(HCOO)_{3}]. The ferroelectricity arises as a "by-product" of structural transition driven by the stabilization of the hydrogen bond.

Negative Linear Compressibility in [NHNH]Co(HCOO) and Its Structural Origin Revealed from First Principles.

First-principles density functional theory computations are used to predict negative linear compressibility in hybrid organic-inorganic perovskite [NHNH][Co(HCOO)]. Negative linear compressibility is a rare exotic response of a material to pressure associated with expansion along one or two lateral directions. Detailed structural analysis revealed that [NHNH][Co(HCOO)]  responds to pressure through tilting of its relatively rigid units, CoO polyhedra, and (HCOO) ligand chain.

Phase Switching as the Origin of Large Piezoelectric Response in Organic-Inorganic Perovskites: A First-Principles Study.

Piezoelectrics are critical functional components of many practical applications such as sensors, ultrasonic transducers, actuators, medical imaging, and telecommunications. So far, the best performing piezoelectrics are ferroelectric ceramics, many of which are toxic, heavy, hard, and cost-ineffective. Recently, a groundbreaking discovery of extraordinarily large piezoelectric coefficients in the family of organic-inorganic perovskites gave a hope for a cheaper, environmentally friendly, inexpensive, lightweight, and flexible alternative.

[The cough variant asthma].

Cough variant asthma (CVA) was first described by W. Corrao. CVA was described as the isolated chronic cough as the only presenting symptom responsive to bronchodilator therapy.

Clinical variants of limbic encephalitis.

The clinical picture of immunomediator disorders of the central nervous system resulting from autoimmune or paraneoplastic processes is often represented by the limbic symptom complex or limbic encephalitis. The article gives a brief description of these conditions, allocated to a separate nosological group in 2007. The symptoms of limbic encephalitis include mental disorders and epileptic seizures of both convulsive and non-convulsive spectrum, up to epileptic status.

On respiratory manifestations of gastroesophageal reflux disease.

One of the manifestations of gastroesophageal reflux disease (GERD) is extraesophageal symptoms, in particular, from the upper and lower respiratory tract. Gastroesophageal reflux is capable of both causing respiratory symptoms independently and aggravating the course of already existing diseases of the respiratory system. The article presents available in the literature current information on the pathogenesis of GERD respiratory symptoms, their clinical course, considerations of diagnosis and treatment.

All-Mechanical Polarization Control and Anomalous (Electro)Mechanical Responses in Ferroelectric Nanowires.

Piezoelectric and ferroelectric nanowires exhibit properties and phases that are not available in the bulk. They are extremely promising for functional nanoscale application. On the basis of atomistic first-principles-based simulations, we predict an all-mechanical polarization control in ferroelectric nanowires.