The role in ensuring peripheral blood flow as a function of balance for older women

Age-related changes in the function of equilibrium are characterized by increasing of projected area of the center of pressure and the velocity of the transference of center of pressure. The changes in peripheral blood flow have the influence on the maintenance of equilibrium which affects mainly the frontal plane. Changes in the regulation of vascular tone in a part of the peripheral blood flow affect the performance of dynamic equilibrium and, as result, reduction of the integral index of balance function

Postural control and social well-being of elderly women

To do this, in the course of phylogeny developed a very complex, but at the same time, an effective system of automatic fine regulation of body position - postural control system. At the present time there is a problem quite early start weakening postural balance. Diagnosis of the level of postural stability in older people will determine what is the cause of malfunction of the postural control system, and, consequently, increasing the risk of falls. Age-related changes in the function of equilibrium are characterized by increasing of projected area of the center of pressure and the velocity of the transference of center of pressure. The changes in peripheral blood flow have the influence on the maintenance of equilibrium affects mainly the frontal plane. Changes in the regulation of vascular tone in a part of the peripheral blood flow affect the performance of dynamic equilibrium and, as result, reduction of the integral index of balance function

Providing balance in vertical position after ischemic stroke

Ischemic changes of the function of balance are characterized by an increase in the projected area of the center and the center of pressure displacement speed. Changes in peripheral blood flow to maintain balance affects mainly the frontal plane. Changing the regulation of vascular tone in the chain of peripheral blood flow affects the performance of dynamic balance, resulting in a reduction of the integral index of the balance function. The brain ischemic death in Russia occupies the third position. As a result, the rehabilitation period after an ischemic stroke can disrupt the social and economic well-being of patients and their close relatives. One of the main consequences of stroke are violations of limb mobility (paresis, paralysis). Their degree can be reduced with the help of rehabilitation measures intended to revive the motor function of paralyzed limbs and to train a patient to remain firm upright. A stabilographic rehabilitation training apparatus with biofeedback represents one of the variants of the posture training. Stabilization rehabilitation simulator with biofeedback is one of the options for training the posture. This exercise in a playful way helps the patient improve balance performance and durability of the vertical position. The method of rehabilitation significantly improved the clinical and stabilographic parameters of the patients' balance and elasticity functions in comparison with patients whose programs did not include this method

The role of Ru clusters in Fe carbide suppression for the reverse water gas shift reaction over electropromoted Ru/FeOx catalysts

Abstract The formation of an iron carbide phase has been shown to inhibit the efficiency of Fe-based catalysts in the initial step of adsorbing carbon dioxide (CO2). In this study, we evaluate the effect of adding Ru clusters (20% at.) to FeOx nanowires deposited on yttria-stabilized zirconia (YSZ) for the reverse water gas shift (RWGS) reaction carried out at 300–400 °C under atmospheric conditions. STEM shows that Ru-FeOx formed a bi-phase structure with Ru clusters (1.5–2 nm) supported on FeOx nanowires (5 nm) that remain as mixed oxides after the reaction. Open-circuit catalytic measurements demonstrated that addition of Ru increased the catalytic activity and stabilized high selectivity (>99%) towards CO. The synergetic effect of Ru and FeOx was further emphasized through electrochemical polarization, which led to a reversible catalytic activity increase of up to 2.4 times. The addition of Ru inhibits the formation of inactive Fe carbide by acting as the reducing component and stabilizing the FeOx active state. This results in an improved and lasting catalytic performance and makes Ru/FeOx catalysts attractive for industrial applications

Balance and steadiness correction of the upright posture of patients having withstood an ischemic stroke with the help of stabilographic rehabilitation training equipment with biofeedback

The brain ischemic mortality rate in Russia occupies the third position. As a result, a recovery period after an ischemic stroke could undermine social and economic well-being of patients and their close relatives. One of the major consequences of a stroke includes the firm-motor defects. Their degree can be reduced with the help of rehabilitation measures intended to revive the motor function of paralyzed limbs and to train a patient to remain firm upright. A stabilographic rehabilitation training apparatus with biofeedback represents one of the variants of the posture training. This training in a playful way helps a patient to improve the balance and firmness indices of the upright position. This rehabilitation method improved considerably the patients’ clinical and stabilographic indices of the balance and firmness function in comparison with the patients whose programmes did not include this method. A patient could sense better that he/she was standing on the both lower limbs. The sensitivity in the lower limbs was intensifying or reviving. According to the additional stabilographic control tests, the total scatter of the pressure centre and the scatter in the sagittal plane, the rate of the pressure centre movement were decreasing; Romberg coefficient became normal

Ionomer content optimization in nickel-iron-based anodes with and without ceria for anion exchange membrane water electrolysis

Hydrogen production from anion exchange membrane water electrolysis (AEMWE) is an efficient cost-effective solution to renewable energy storage. Contrary to proton exchange membrane (PEM) electrolysis, AEMWE requires further optimization of its cell design, particularly for the kinetically unfavourable oxygen evolution anode half-cell reaction (OER). In this work we optimize the commercial Fumatech fumion ionomer content in AEMWE anodes using nickel (Ni) nanoparticles (NP) synthesized by chemical reduction. The optimal ionomer content is then applied to Ni-iron (Fe)-based NPs with and without ceria (CeO2), all prepared using the same method. Scanning Electron Microscopy (SEM) of the resulting electrode surfaces, Particle-size Distribution (PSD) of the catalyst inks, and in-situ testing of the monometallic Ni NPs show that the best and most active catalytic layer is obtained using 15 wt% ionomer. AEMWE performance and short-term durability are evaluated in different concentrations of potassium hydroxide (KOH), where the Ni90Fe10 is the best performing Ni-based electrode showing 1.72 V at 0.8 A cm−2 in 1 M KOH after IR-correction, and a degradation rate of 3.3 mV h−1. The addition of ceria to the Ni-based catalysts shows more consistent mass transfer over time likely due to more efficient water transport and bubble release.acceptedVersio

THEORETICALLY UNBREAKABLE CIPHERS AS THEY SHOULD BE UNDERSTOOD

Perfectly-secret ciphers according to the Claude Shannon's theory, which are considered as unbreakable, and more specifically random keystream ciphers, are discussed. An analysis of the sources mentioned in the reference list showed that all of them come to the point that the perfect ciphers according to Claude Shannon's theory are unbreakable. The article introduces some concepts, such as: the probabilistic model of cipher; the perfect cipher, which is secure against a plaintext recovery ciphertext-only attack; the perfect cipher, which is secure against a key recovery ciphertext-only attack; effective plaintext or key recovery attack; ineffective plaintext or key recovery attack; decipherable model of cipher; undecipherable model cipher. The introduced concepts were used to clarify Shannon’s mathematical model and to prove that a statement about unbreakability of the perfect ciphers according to the Claude Shannon's theory, including random keystream cipher, were wrong. The purpose of the article is to attract the attention of specialists to the problem of developing methods for decrypting Vizhener cipher and using them in solving the problem of determining the cipher key of a random gamming according to a ciphertext, as well as developing methods for estimating the complexity and reliability of deciphering the cipher class in question

SUPPORTIVE SUPERVISION AS A TECHNOLOGY OF IMPROVING THE QUALITY OF HOSPITAL CARE DELIVERY

Improving the quality of medical care is a priority in countries with developed and developing health care system. There are various approaches to improve the quality and safety of patient’s care, as well as various strategies to encourage hospitals to achieve this goal. The purpose of the presented literature review was to analyze existing experience of the implementation of technology of supportive supervision in health care facilities to improve the quality of hospital care delivery. The data sources for publication were obtained from the following medical databases: PubMed, Cochrane Library, Medscape, e-library, and books on the topic of the review written by experts. The article discusses the results of the research studies demonstrating the successes and failures of supportive supervision technology application. Implementation of supportive supervision in medical facilities based on generalized experience of different countries is a promising direction in improving the quality of medical care delivery. This technology opens up opportunities to improve skills and work quality of the staff at pediatric hospitals in the Russian Federation

Pilot Project «All-Russian Registry of Patients with Severe Bronchial Asthma.» The First Results in a Children’s Group of Patients (Moscow’s Observation Program)

The article presents the first results of the pilot observation program «The All-Russian Severe Asthma Patient Registry» which was started in Moscow. Objectives. The objective of this initiative is the accumulation of clinical data on patients with severe bronchial asthma in the Russian Federation. Methods. The chosen method was a registry, the rights holders of which were 3 professional associations — Interregional Public Organization «Russian Respiratory Society», Public Organization «Union of Pediatricians of Russia», All-Russian Public Organization «Association of Allergologists and Clinical Immunologists». Results. The results of the pilot project are presented by the data analysis of electronic case report forms of 36 children (totally, the project included 100 patients, 64 adults and 36 children) enrolled in the program from June to December 2016. Using the registry, a detailed analysis of the clinical characteristics of a group of children with severe atopic bronchial asthma was carried out, the results of a pharmacoepidemiological evaluation of therapy were given. Obtained by the researchers, a high frequency of the assignment of a genetically engineered biologic drug of omalizumab meets the international recommendations but does not reflect the all-Russian reality and can be explained by inclusion in the registry of pediatric patients observed only in the Federal State Autonomous Institution «National Scientific and Practical Center of Children’s Health» of the Ministry of Health of the Russian Federation. Conclusion. To determine true indicators that characterize bronchial asthma in children in the Russian Federation it is necessary, undoubtedly, to expand the geography of project participants