Effectiveness Of Various Methods Research Articles

Analysis of the effectiveness of various methods of rehabilitation of patients with subacromial impingement syndrome

Subacromial impingement syndrome is a common pathology that leads to a persistent decrease in the functioning of the affected limb and, as a consequence, a decrease in the quality of life and work ability of patients. According to various authors, the study of the effectiveness of treatment and rehabilitation of this pathology is quite widely presented in the literature: surgical, including arthroscopic operations, rehabilitation using various factors of physical therapy, manual and other practices. However, the issue of assessing the effectiveness of movement therapy, both alone and in combination with other therapeutic methods, remains relevant. To evaluate the effectiveness of therapeutic gymnastics procedures, both monotherapy and in combination with manual massage according to the therapeutic method and extracorporeal shock wave therapy (ESWT), in patients with subacromial impingement syndrome of the shoulder, in order to reduce pain and improve the function of the shoulder joint. The study included 70 patients whose age was 42.18±10.42 years. Patients were divided into two main groups: group 1 (n=34) and group 2 (n=36). All patients received a course of treatment, including 10 procedures of therapeutic exercises, with recommendations at the end of the course for continuation in the form of independent studies using the proven methodology. The duration of the course of therapeutic exercises (in the form of procedures with a physical therapy instructor and subsequent independent studies) was 30 days. Patients in group 2 were divided into three subgroups: subgroup 2A, in which PH procedures were combined with massage of the cervical-collar area and the upper limb area of the affected side; subgroup 2B, where PH gymnastics was carried out in combination with extracorporeal shock wave therapy (ESWT) procedures; subgroup 2C - a comprehensive program including LH procedures, manual massage and shock wave therapy. 3 months after the end of the course of rehabilitation measures, patients of all groups showed a significant improvement in scores on the ASES and VAS scales, but there were no reliably significant differences between the results of different groups. The study indicates that movement therapy is an effective method of rehabilitation for patients with subacromial impingement syndrome, and conducting complex programs in which PH is combined with other rehabilitation methods (massage, shock wave therapy) doesn't have statistically significant advantages over PH alone within a 3-month observation period.

Comparison of the effectiveness of various methods for controlling the energy parameters of photovoltaic systems

Comparison of the effectiveness of various methods for controlling the energy parameters of photovoltaic systems

Determination of kelp (Laminaria digitata) technological characteristics depending on the drying method

The paper considers four methods of drying kelp (Laminaria digitata): convective dehydration at an air temperature of minus 5 oС, relative air humidity of 55 and 90 %; vacuum drying at a metal carrier temperature of 20°C and a vacuum depth of 250 Pa; convective dehydration at an air temperature of 20°C and a relative air humidity of 35 %. In dried algae, the final moisture content, water activity, and strength characteristics were evaluated. To determine the swelling coefficient, dry algae were pre-crushed. It was established that at a temperature of minus 5°C and a relative air humidity of 90 %, dehydration had an unsatisfactory result in terms of the final moisture content of the finished product 27.4 %. This type of drying at a relative air humidity of 55 % provides a final moisture content of the product (12.3 ± 0.48) % and a relatively high swelling coefficient of 6.9. Algae, dehydrated at minus 5°C, had elastic properties, in contrast to other considered methods. Vacuum drying made it possible to obtain the minimum final moisture content of dry algae and the highest swelling coefficient of 7.7. However, drying to constant weight lasted 25.5 hours. Of the considered drying options, the convective method (t = 20°C) showed the highest rate. The duration of drying to constant weight was 8 hours. The final moisture content of the product was acceptable (9.8±1.52) %. However, the water activity after algae swelling had the highest value of 0.97±0.004, and the swelling coefficient had a relatively low value of 6.5. In further studies, it is planned to study the effect of various methods of algae dehydration on the preservation of its biologically active substances.

Сравнительный анализ методов ультразвуковой диагностики паратонзиллярного абсцесса

In the daily clinical practice of an otorhinolaryngologist, purulent-inflammatory diseases of the pharynx are often encountered. Peritonsillar abscess occupies one of the leading positions among them. Computed tomography and diagnostic ultrasound are proposed as auxiliary instrumental research methods in modern clinical guidelines. The first, with its high sensitivity, has a number of disadvantages: the high cost of the study and low availability. Ultrasound examination has a number of advantages, such as high availability, the ability to detect specific changes characteristic of an abscess, depending on the methods used. This article is devoted to the study of the effectiveness of various methods of diagnostic ultrasound of peritonsillar abscess.

Клинический случай Диоспиробезоара, осложненного острой кишечной непроходимостью

INTRODUCTION: Bezoars are foreign bodies formed in the digestive tract as a result of ingestion of some indigestible substances: plant fibers, hair and animal dander, chemical compounds. They are mainly found in animals. But although this is an extremely rare pathology of humans, it can be complicated with such threatening conditions as acute intestinal obstruction, decubitus ulcers of the digestive tract, gastrointestinal bleeding and perforation with the development of peritonitis. Bezoars are the cause of acute intestinal obstruction in only 2–4% of cases, but mortality, according to the literature, can reach 30%. Difficulties in the clinical diagnosis of bezoar disease lie in the absence of specific symptoms: it manifests itself as an abdominal syndrome, like a rather wide range of various diseases. Therefore, the importance of informing physicians of various profiles both about the factors provoking the formation of bezoars and about the methods of their diagnosis and treatment is undeniable. The article presents a case report of an 86-year-old female patient with acute intestinal obstruction caused by diospyrobezoar. CONCLUSION: The clinical interest of the presented case lies in its highly illustrative character. We could observe a combination of all predisposing factors for the formation of diospyrobezoar, compare the effectiveness of various methods of instrumental diagnostics and apply the optimal tactics of surgical intervention.

Double Pass Solar Air Heater: A Review

Improvement in heat transfer rate and effectiveness of a solar air heater is always a matter of concern in the scientific community. Different steps have been taken to improve it, including the application of artificial roughness, double glazing, colour coating, and multi-pass flow. In this article, a detailed assessment of the efficiency and effectiveness of a solar air heater has been conducted by applying various types of double-pass arrangements. The effects of various methods applied so far are deeply analysed and discussed to create a better understanding. Future opportunities, challenges, and concerns are also addressed, with a fruitful conclusion in the last. Keywords: Solar energy, solar air heater, double-pass, artificial roughness, thermal performance

Sleep disorders and effectiveness of various methods of insomnia therapy in pregnant women (Literature review)

Sleep disorders (dyssomnia) during pregnancy are of high prevalence and may be associated with negative peri- and postnatal outcomes. However, these conditions are often not effectively diagnosed and treated. In this review a systematic evaluation of the effectiveness of different methods of therapy to improve the quality of sleep and in the presence of insomnia during pregnancy was conducted.Systematic search in PubMed, Psycinfo and Medline databases was conducted without limiting the publication date till November 3, 2022. The relevant studies included pregnant women of any age and gestation; they included the clinical intervention schemes aimed at improving sleep quality; the data before and after treatment for one or more sleep-related results were reported. 16 studies were selected with a total of 988 pregnant women. According to the results of researches the effectiveness of different types of interventions was established: cognitive-behavioral therapy for sleep disorders, pharmacotherapy, acupuncture, yoga, relaxation and phytotherapy. The recent publications have determined that sleep disorders have a connection with the adverse pregnancy outcomes, including fetal growth restriction, premature births, weakness of uterine labor activity and high delivery frequency of caesarean section.There is an extremely high relevance and need for high-quality randomized controlled studies about sleep disorders during pregnancy and implementation of effective standard obstetric care programs. There is a necessity to improve psychological care and sleep care during pregnancy to maintain a positive pregnancy course, childbirth and postpartum period. Future clinical studies should be randomized and include a sufficient number of women for statistical efficacy, including checking the effectiveness of cognitive-behavioral insomnia therapy to prevent pregnancy/childbirth complications and somatic diseases in the long-term period.

EXPERIMENTAL TESTING METHODOLOGY OF STRESS-STRAIN STATE OF THE REINFORCED CONCRETE PIPE WITH STRENGTHENING

Reinforced concrete pipes are exposed to environmental influences during the entire period of their operation. As a result, defects and damage appear and reduce durability and bearing capacity. In this regard, there is a need to repair and strengthen them. In order to assess the effectiveness of strengthening reinforced concrete pipes, it is necessary to get data about deformations that appeared as a result of the loads on the reinforced concrete pipe. The method for conducting experimental studies of the deformed state of reinforced concrete pipes has been developed, and the main devices and means necessary for conducting experimental research in laboratory conditions have been selected. The obtained data of deformations appearance can be used to compare the effectiveness of various methods of strengthening reinforced concrete pipes and their improvement as well as to monitor technical condition and to predict the formation of defects.

The Role of Cryotherapy After Total Knee Arthroplasty: A Systematic Review

BackgroundPrevious research shows conflicting evidence regarding the postoperative role of cryotherapy after total knee arthroplasty (TKA). This systematic review aims to further investigate the effect of various methods of cryotherapy on the following: (1) pain; (2) swelling; (3) postoperative opioid use; and (4) range of motion (ROM). MethodsA strategic keyword search of Medline, Cochrane, Embase, and CINAHL retrieved randomized controlled trials examining cryotherapy following TKA published between February 1, 2017, and February 24, 2022. The studied outcomes included pain ratings, knee/limb swelling, opioid use, and ROM. Six studies were selected for inclusion in this review. ResultsOpioid use was significantly decreased in cryotherapy groups compared to noncryotherapy groups within the first postoperative week only (P < .05). This effect may be augmented by the use of computer-assisted (temperature regulated) cryotherapy devices, compared to other modalities including ice packs. Pain ratings also decrease, but this decrease may not be clinically relevant. Cryotherapy appears to confer no consistent benefit to ROM and swelling at any time point. Computer-assisted cryotherapy may be associated with decreased opioid consumption after TKA compared to traditional ice packs. ConclusionCryotherapy’s role after TKA appears to be in decreasing opioid consumption primarily in the first postoperative week. Pain ratings also decrease consistently with cryotherapy use, but this decrease may not be clinically relevant. Study heterogeneity requires further research focusing on optimizing cryotherapy modalities within the first postoperative week, and analyzing cost associated with modern outpatient postoperative TKA protocols.

Assessing trust and research attitudes in Blacks/African Americans following a personalized vs less personalized community approach

AbstractBackgroundSeveral studies have shown the importance of establishing trust in supporting an individual’s willingness to participate in research; yet evidence is limited regarding systematic studies testing the effectiveness of various methods used to build trust. Our pilot study examined two methods of building trust in communities of color by measuring willingness to participate in research pre‐ and post‐intervention. We hypothesized that a more personalized intervention would be more effective than a non‐personalized one in changing attitudes about research participation.Methods97 non‐randomized African American participants, without self‐reported cognitive impairment, completed the research attitudes questionnaire (RAQ) before and after participating in two different community engagement (CE) activities: 1) personalized medication review (MR), n = 48; and/or 2) a less personalized public community talk (Talk), n = 49. Numeric comparisons were conducted using student t‐tests. We used chi‐square and Fisher’s exact test for categorical comparisons. Pre‐ and post‐Talk and MR outcomes were tested for significant changes using the paired Wilcoxon non‐parametric sign rank test.ResultsIn this predominantly female sample (80% female), mean age was 64 (standard deviation = 9.9). Study participant characteristics provided in Table 1. There were no significant differences in RAQ or trust questions in the pre‐ and post‐Talk session. However, during the MR session, significant changes were seen on the question “I have a positive view about medical research in general” (P = 0.007). During the pre‐MR, 16.7% strongly agreed with this statement, while 39.6% strongly agreed at the post‐MR. Similarly, agreement with the statements “Medical researchers treat people from my racial group as guinea pigs” (p = 0.004) and “Medical researchers work hard to keep participants’ information private and secure” (P = 0.01) were also significantly different following the intervention (see Figure 5).ConclusionsThese findings support our hypothesis that a more personalized community engagement approach would have a greater influence on participant’s research attitudes. Compared to individuals with ≤ 1 co‐morbidities at baseline, those with ≥2 co‐morbidities had positive responses prior to an intervention and felt less responsibility to volunteer post med review. Additional studies are needed to further investigate these findings and the role of trust in association with research attitudes.

Effect of method of processing specialty coffee beans (natural, washed, honey, fermentation, maceration) on bioactive and volatile compounds

The aim of this study was to determine the effect of various methods of processing, such as natural, washed, honey, anaerobic fermentation, and carbonic maceration, on the antioxidant activity and bioactive and volatile compounds in green and roasted specialty coffees from various countries of origin (Nicaragua, Ethiopia, Peru, Burundi). Chlorogenic acids were different between green coffees (P = 0.04). Roasting increased the total polyphenol and total flavonoid (TF) contents. TF content in roasted Peruvian (PER) beans was significantly higher (4.20 μg quercetin (QE)/mg) for natural processing than carbonic maceration (CM; 2.22 μg QE/mg), and antioxidant capacity was significantly higher for CM (85.7 μg Trolox (TE)/mg) than natural processing (59.5 μg TE/mg). Burundian coffees had the highest antioxidant capacity, with the highest values for naturally processed beans (128.8 μg TE/mg) compared to beans processed by anaerobic fermentation (105.4 μg TE/mg). 2-Furanmethanol, a volatile compound, was a major compound in all roasted coffees, with a mean relative abundance of 21.52–32.53%. The type of processing affected the content of bioactive and volatile compounds in specialty coffees. However, anaerobic fermentation maintained a high level of bioactive compounds and contributed to the antioxidant activity of the roasted coffee, depending on the country of origin.

In vitro and in vivo gene transfer in the cloudy catshark Scyliorhinus torazame.

Cartilaginous fishes have various unique physiological features such as a cartilaginous skeleton and a urea-based osmoregulation strategy for adaptation to their marine environment. Also, because they are a sister group of bony vertebrates, understanding their unique features is important from an evolutionary perspective. However, genetic engineering based on gene functions as well as cellular behavior has not been effectively utilized in cartilaginous fishes. This is partly because their reproductive strategy involves internal fertilization, which results in difficulty in microinjection into fertilized eggs at the early developmental stage. Here, to identify efficient gene transfer methods in cartilaginous fishes, we examined the effects of various methods both in vitro and in vivo using the cloudy catshark, a candidate model cartilaginous fish species. In all methods, green fluorescent protein (GFP) expression was used to evaluate exogenous gene transfer. First, we examined gene transfer into primary cultured cells from cloudy catshark embryos by lipofection, polyethylenimine (PEI) transfection, adenovirus infection, baculovirus infection, and electroporation. Among the methods tested, lipofection, electroporation, and baculovirus infection enabled the successful transfer of exogenous genes into primary cultured cells. We then attempted in vivo transfection into cloudy catshark embryos by electroporation and baculovirus infection. Although baculovirus-injected groups did not show GFP fluorescence, electroporation successfully introduced GFP into muscle cells. Furthermore, we succeeded in GFP transfer into adult tissues by electroporation. The in vitro and in vivo gene transfer methods that worked in this study may open ways for genetic manipulation including knockout experiments and cellular lineage analysis in cartilaginous fishes.

Method of compression and ensuring the fidelity of video images in infocommunication networks

Subject research in the article is the methods of compressing video images under conditions of ensuring the desired level of their fidelity in the delivery process using infocommunication networks. The goal is to develop methods of encoding video images for increasing the level of their compression in the conditions of ensuring required reliability. Task: to substantiate the approach regarding the structural clusterization of transformed video segments in the conditions of preserving their reliability; to develop a method of structural and statistical coding of transformants in the spectral-cluster space; conduct a comparative evaluation of the effectiveness of various methods of encoding video segments. The methods used: mathematical models for estimating the amount of statistical and structural redundancy in the clustered spectral space of video segments; methods of statistical coding. The following results have been obtained. The potential effectiveness of representing a transformant in clustered space by the number of series of units in binary description of their components has been substantiated. A method of structural-statistical coding in the spectral-cluster space has been created. The basic component of this technological approach is the evaluation of the estimates regarding the potential ability to eliminate various types of redundancy in the current cluster. Here, the amount of redundancy is reduced considering the statistical and structural features of the cluster. The comparative evaluation revealed the advantages of the created method over coding methods in standardized platforms. The advantage is achieved in terms of the peak signal-to-noise ratio by at least 30%. and in terms of a compression ratio by an average of 12 %. Conclusions. The scientific novelty of the obtained results is as follows: for the first time, a method of structural-statistical coding of video segments in spectral space based on their clusterization has been created. The differences of the method lie in the fact that the component of the transformant is simultaneously interpreted as an element of the statistical and combinatorial cluster space; the potential capabilities of eliminating various types of redundancy in the clustered transformant are considered. This provides an increase in the level of compression of video images for a given level of reliability.

Systematic review of the clinical efficacy of various methods of surgical treatment of patients with ventral hernias

BACKGROUND: To date, the problem of relapse-free treatment in herniology has not been solved. In recent years, the development and wider application of modern technologies in herniology, including endovideosurgical, has been noted. The principles of preparation for surgical interventions, postoperative management and the choice of surgical treatment have also changed significantly, which has affected the improvement of the quality of surgical care for patients with ventral hernias. AIM: To determine the clinical effectiveness of various methods of surgical treatment of patients with ventral hernias by conducting a systematic review and identifying differences associated with statistical heterogeneity in the study findings. MATERIALS AND METHODS: More than 1400 domestic publications devoted to surgical treatment of ventral hernias have been preliminarily studied. Taking into account the inclusion and exclusion criteria, the review included 35 domestic scientific publications dated from 2007 to 2020. 8906 cases of surgical treatment of patients with ventral hernias have been analyzed to assess the results of treatment and the clinical effectiveness of various methods. RESULTS: The wider introduction of endovideosurgical operations into practice has demonstrated the best result in assessing the risk of relapses and postoperative complications. However, the total share of endovideosurgical operations remains small compared to other types of surgical treatment. CONCLUSIONS: Standardized approaches to the management of surgical patients and the prevention of possible complications due to the principles of evidence-based medicine can improve the overall effectiveness of the treatment of patients with ventral hernias.

Sixteen years progress in recanalization of chronic carotid artery occlusion: A comprehensive review.

Although chronic carotid artery occlusion seems to be associated with significant risk of ischemic stroke, revascularization techniques are neither well established nor widespread. In contrast, extracranial-intracranial bypass is common despite the lack of evidence regarding neurological improvement or prevention of ischemic events. The aim of current review is to evaluate the effectiveness of various methods of recanalization of chronic carotid artery occlusion. Comprehensive literature search through PubMed, Scopus, Cochrane and Web of Science databases performed. Various parameters were assessed among patients underwent surgical, endovascular and hybrid recanalization for chronic carotid artery occlusion. 40 publications from 2005 to 2021 with total of more than 1300 cases of revascularization of chronic carotid artery occlusion have been reviewed. Further parameters were assessed among patients underwent surgical, endovascular and hybrid recanalization for chronic carotid artery occlusion: mean age, male to female ratio, mean duration of occlusion before treatment, rate of successful recanalization, frequency of restenosis and reocclusion, prevalence of ischemic stroke postoperatively, neurological or other symptoms improvement and complications. Based on proposed through reviewed literature indications for revascularization and predictive factors of various recanalizing procedures, an algorithm for clinical decision making have been formulated. Although treatment of chronic carotid artery occlusion remains challenging, current literature suggests revascularization as single option for verified neurological improvement and prevention of ischemic events. Surgical and endovascular procedures should be taken into account when treating patients with symptomatic chronic carotid artery occlusion.

Influence of Technological Stages of Preparation of Rooster Semen for Short-Term and Long-Term Storage on Its Quality Characteristics

There is a problem of declining quality of rooster semen in the "native semen-equilibrium-short-term and long-term storage (cryopreservation)" cycle. The aim of this study was to determine the effects of various methods of preparing rooster semen on its qualitative characteristics, taking into account the method of removing possible contaminants (centrifugation or filtration), and to evaluate the change in the composition of the cytosol of the spermatozoon of the native semen, during equilibration of the diluted semen and during short-term storage. In this study, semen from roosters (n = 22) of the Russian White breed was used. Experiment 1: semen was divided into 3 aliquots: I-was diluted with synthetic cryoprotective medium (1:1 with LCM control, II-was filtered (membrane pore Ø 0.2 μm), and III-was centrifugated (at 3000 rpm for 10 min). Native and frozen/thawed semen was evaluated. Experiment 2: the composition of carbohydrates and polyols of the spermatozoa of native semen was evaluated during equilibration and after storage (3 h). The results of Experiment 1 showed an advantage in the quality of filtered semen compared to centrifuged in terms of progressive motility (41.0% vs. 27.0%) and chromatin integrity (56.6% vs. 33.6%). Results from frozen/thawed samples of filtered semen compared to centrifuged in terms of progressive motility were 25.5% vs. 5.5%, respectively, and in terms of chromatin integrity-83.5% vs. 64.4%, respectively. The results of Experiment 2 showed the main component in the composition of the native spermatozoa cytosol in assessing the content of carbohydrates and polyols was inositol-75.6%. The content of inositol decreased during storage by 6.5 times (from 0.030 mg/mL to 0.007 mg/mL), proposing the role of inositol as the main antioxidant in the cytosol of spermatozoa, which makes it biologically justified to introduce inositol into the composition of synthetic diluents, including cryoprotective ones.

Teaching Trauma Content in Higher Education: A Systematic Literature Review.

Higher education must prepare future mental health providers to work with individuals who have been exposed to trauma. This is vital to the success of students' practice, many of whom would benefit from trauma reduction strategies in their own lives. The purpose of this systematic review is to summarize the knowledge base on teaching methods that may reduce the potential that trauma content in the classroom could cause: (a) re-traumatization; (b) vicarious traumatization; or (c) secondary traumatic stress (collectively "adverse consequences") in higher education students. This systematic review was conducted following PRISMA-P guidelines. A total of 27 peer-reviewed articles met the inclusion criteria, which included studies that focused on teaching methods that were used to teach trauma content for students in higher education, peer-reviewed articles, and articles published in English before February 12, 2020. Studies were identified based on key words and the full-text articles were reviewed by two authors who discussed discrepancies until consensus was obtained. Researchers recommend using a variety of teaching approaches, from teaching about self-care to journaling. However, the major findings showed that few studies analyzed the effectiveness of these methods, and that therefore, the effectiveness of various methods to address the adverse consequences of teaching trauma content is unknown. Further research is needed, including cross-sectional and longitudinal studies in this area.

Influence of the method of preparation of clove oil emulsion on the anaesthetic effect in fish (on the example of Clarias gariepinus

In aquaculture, the use of clove oil as a natural anaesthetic for hydrobiontes is gaining popularity. There are several ways to prepare an aqueous emulsion for anaesthesia, which creates a problem for technologists in choosing the most effective one. The purpose of the study was to compare the anaesthetic effect of clove oil in three methods of preparation of the mixture on the youth of the African clary catfish. The study was conducted at the Centre for Aquatic Bioresources and Aquaculture of the National University of Life and Environmental Sciences of Ukraine. Research methods – Ichthyological and statistical. The activity of a water-based clove oil preparation was evaluated using three methods: hot, cold, and alcohol. Experimental material – juvenile fish of the clary catfish with an individual body weight from 22 to 285 g. Experimental conditions: the experimental material was kept without feeding for a day before the start of the study; fish anaesthesia was performed in the water at the temperature of +26 0C; the duration of manipulations with each fish was minimal. The effectiveness of various methods of preparation of the emulsion was evaluated by the duration of fish entry into the state of anaesthesia and withdrawal from this state. The advantage of the hot method of preparing an aqueous emulsion of clove oil over the other two is established: the duration of fish entry into anaesthesia was 22% shorter compared with the cold method, and 12.3% – with the alcohol method (p ≤ 0.05). The duration of fish recovery from anaesthesia with the hot method of preparation of the mixture was also shorter: compared to the cold method – 18% (p ≤ 0.05), with the alcohol method – 43.2% (p ≤ 0.001). Using correlation analysis, a relationship was established between the duration of fish entry into the state of anaesthesia and the individual body weight of the fish. Degree of binding: high for hot (r = 0.606) and alcohol methods (r = 0.529) and medium for a cold method of preparation of an anaesthetic mixture (r = 0.385). The results obtained are of practical value for improving the method of anaesthesia of fish using clove oil

Mechanisms of low-temperature rehabilitation technologies. Local deep hypothermia in patients with arthritis

Among all pathologies of the musculoskeletal system, osteoarthritis and rheumatoid arthritis are the two most common diseases the course of which is caused by a chronic inflammatory process. The leading clinical manifestations of osteoarthritis and rheumatoid arthritis are pain and synovitis.&#x0D; This review analyzes the recent data on the pathogenesis of pain syndrome and synovitis, as well as the most commonly used surgical or conservative treatment and rehabilitation methods. The technologies of use of low-temperature effects in the rehabilitation of patients with arthritis are considered. The original concept of a new method for the relief of pain and synovitis in the knee joint by using local deep hypothermia and a hypothesis of mechanisms of its action are presented.&#x0D; The purpose of the review is to provide a comparative analysis of the effectiveness of various methods of therapy and rehabilitation in patients with osteoarthritis and rheumatoid arthritis, as well as to evaluate the mechanisms of local deep hypothermia in the relief of synovitis and knee pain.

Effects of Various Disinfection Methods on the Material Properties of Silicone Dental Impressions of Different Types and Viscosities.

There is an ongoing search for novel disinfection techniques that are not only effective, cheap, and convenient, but that also do not have adverse effects on the properties of dental impressions. We compared the effects of various methods (UVC, gaseous ozone, commercial solution, and spray) on the dimensional change, tensile strength, and hardness of silicone impressions. Moreover, as a secondary aim, we performed a statistical comparison of the properties of nondisinfected addition (Panasil Putty Soft, Panasil monophase Medium, Panasil initial contact Light) and condensation silicones (Zetaplus Putty and Oranwash L), as well as a comparison of materials of various viscosities (putty, medium-bodied, and light-bodied). Our results revealed that addition silicones had higher dimensional stability, tensile strength, and Shore A hardness compared to condensation silicones. Both traditional (immersion and spraying) and alternative methods of disinfection (UVC and ozone) had no significant impact on the tensile properties and dimensional stability of the studied silicones; however, they significantly affected the hardness, particularly of Oranwash L. Our study demonstrated that, similarly to standard liquid disinfectants, both UVC and ozone do not strongly affect the material properties of most silicones. However, before recommendation, their usefulness for each individual material should be thoroughly evaluated.