Control of microimpurities emitted from polymer construction materials based on polyvinyl chloride

The aim of this article is to improve the degree control of microimpurities emitted from polymeric construction materials into the environment. It is proposed to do this through the modification of the physicochemical nature of the original (source) sorbent and, as a consequence, the improvement of the sorption capacity and the extraction ratio of highly volatile toxic substances. The proposed concentrator columns can be widely used in the analysis of microimpurities of polar organic substances released into the environment from polymeric construction materials based on polyvinyl chloride

Control of microimpurities emitted from polymer construction materials based on polyvinyl chloride

The aim of this article is to improve the degree control of microimpurities emitted from polymeric construction materials into the environment. It is proposed to do this through the modification of the physicochemical nature of the original (source) sorbent and, as a consequence, the improvement of the sorption capacity and the extraction ratio of highly volatile toxic substances. The proposed concentrator columns can be widely used in the analysis of microimpurities of polar organic substances released into the environment from polymeric construction materials based on polyvinyl chloride

Influence of multimodal anesthesia and analgesia on mechanisms of blood circulation adaptation of oncogynecologic patients in the postoperative period

Objective: to assess the influence and eff ectiveness of multimodal anesthesia and analgesia from the standpoint of personalization of compensatory mechanisms of blood circulation adaptation in oncogynecologic patients in the postoperative period. Materials and methods: a study was conducted in patients who underwent surgical interventions on pelvic organs for oncogynecological diseases. The total number of patients was 39 people. Based on anesthesia with sevoflurane at low concentrations and spinal analgesia, all patients underwent multimodal anesthesia. To determine the nature of the functioning of the circulatory system, the adaptive potential was determined by the index of functional changes. For the relief of pain syndrome in patients in the postoperative period, the administration of ketoprofen and nefopam hydrochloride, used according to the doctor’s prescription or in the patient-controlled analgesia mode, as well as the regional blockade of the nerves innervating the anterior abdominal wall (Transversus Abdominis Plane block) was provided. Results: it was revealed that multimodal anesthesia and analgesia, depending on the level of the adaptation potential, differently affects the adaptation and regulatory mechanisms of the systemic circulation of patients, and its vegetative tone, which can cause the risk of complications in the postoperative period. Conclusions: multimodal anesthesia and analgesia, including a combination of central, regional non-narcotic analgesics and blockades, allows to preserve the reserves of systemic circulation and optimize its vegetative component, is effective and safe in oncogynecologic patients with the stress of regulatory mechanisms of adaptation. The use of multimodal anesthesia and analgesia in oncogynecologic patients with unsatisfactory adaptation is a risk factor for the disruption of the regulatory and compensatory mechanisms of hemodynamics and the vegetative tone of the systemic circulation, contributing to the limitation of its work in the first 24 hours of the postoperative period

ПроточныЕ редокС батареИ — пЕрспЕктивныЕ элЕктрохимичЕскиЕ ИсточнИкИ энергИИ

У статті представлено огляд технології так званих проточних редокс батарей. Наведено принцип їх роботи, а також приклади їх практичного використання, переваги та недоліки. Обговорюється сучасний стан наукових досліджень, що стосуються проточних редокс батарей. Перелічено редокс пари та електродні матеріали, що використовуються в проточних редокс батареях. Запропоновано шляхи їх подальшого вдосконалення

Aqua Aerobics in Physical Education as a Means of Increasing Physical Activity of Students

Исследовано влияние занятий аквааэробикой на организм занимающихся. Определено, что в результате реализации специальной программы занятий по физическому воспитанию, включающих средства аквааэробики, весьма положительно влияет на уровнь физической подготовленности студенток. Изучено и выяснено мнение студенческой молодежи о новой форме занятий в сравнении с уже применяющимися средствами физической активности.The lack of motion causes in humans a number of negative changes that reduce their efficiency and lead to an increase of various diseases. This problem is particularly relevant for the students, because the increase in mental activity and decreased physical activity leads to augmentation of various diseases. To provide the students with the necessary amount of movement in physical education classes should be directed not only to ensure the necessary amount of exercise, but also to be interesting. In this regard, there is an urgent need to find the new forms, means and methods of training, to increase motivation female contingent in physical culture and sports. However, the system of funds used for physical activity, for students often do not appeal to the young, has the nature of mandatory measures, and are not active that provide physical development as well as emotional relaxation. Aqua-aerobics is one of the new types of physical activity which has caused a considerable interest among the students. The main reasons for the availability are: steel varieties of dance and gymnastic combinations performed in water, affordable for a lot of the students who are not involved in sports at all and can not swim but interested in physical exercises performed in water with musical accompaniment, with no fatigue and with positive emotions. Water environment renders positive influence on the organism of occupying and creates certain terms for implementation of motions, slows the rate of their implementation, the terms of their execution are facilitated in one cases, in others – they become complicated. Things in the main group, carried out in the swimming pool with the use of aqua aerobics funds provided a natural growth of physical fitness on average by 8.9%. As a result of a special program for physical education classes, including aqua aerobics facilities, a very positive effect on the level of physical fitness of the students is determined. There were studies on the opinion of the students on the new forms of employment in comparison to those used by means of physical activity