27 research outputs found
Refrigeration machines prospects development for gas carriers
No full textTereshenko R. Refrigeration machines prospects development for gas carriers / R. Tereshenko, R. Tereshenko ; sci. adviser O. Yakovleva // Стан, досягнення і перспективи холодильної техніки і технології : зб. тез доп. Всеукр. наук.-техн. конф. молодих вчених, аспірантів та студентів, Одеса, 23-24 квіт. 2019 р. / Одес. нац. акад. харч. технологій, ННІ холоду, кріотехнологій та екоенергетики ім. В. С. Мартиновського ; наук. ком.: Б. В. Єгоров та ін. – Одеса, 2019. – с. 50–51 : рис
Emerging Value of Osseointegration for Intuitive Prosthetic Control after Transhumeral Amputations: A Systematic Review
Get PDFBackground: Upper extremity limb loss profoundly impacts a patient's quality of life and well-being and carries a significant societal cost. Although osseointegration allows the attachment of the prosthesis directly to the bone, it is a relatively recent development as an alternative to conventional socket prostheses. The objective of this review was to identify reports on osseointegrated prosthetic embodiment for transhumeral amputations and assess the implant systems used, postoperative outcomes, and complications. Methods: A systematic review following PRISMA and AMSTAR guidelines assessed functional outcomes, implant longevity and retention, activities of daily living, and complications associated with osseointegrated prostheses in transhumeral amputees. Results: The literature search yielded 794 articles, with eight of these articles (retrospective analyses and case series) meeting the inclusion criteria. Myoelectric systems equipped with Osseointegrated Prostheses for the Rehabilitation of Amputees implants have been commonly used as transhumeral osseointegration systems. The transhumeral osseointegrated prostheses offered considerable improvements in functional outcomes, with participants demonstrating enhanced range of motion and improved performance of activities compared with traditional socket-based prostheses. One study demonstrated the advantage of an osseointegrated implant as a bidirectional gateway for signal transmission, enabling intuitive control of a bionic hand. Conclusions: Osseointegrated prostheses hold the potential to significantly improve the quality of life for individuals with transhumeral amputations. Continued research and clinical expansion are expected to lead to the realization of enhanced efficacy and safety in this technique, accompanied by cost reductions over time as a result of improved efficiencies and advancements in device design
Whole-eye transplantation: current challenges and future perspectives
Get PDFWhole-eye transplantation emerges as a frontier in ophthalmology, promising a transformative approach to irreversible blindness. Despite advancements, formidable challenges persist. Preservation of donor eye viability post-enucleation necessitates meticulous surgical techniques to optimize retinal integrity and ganglion cell survival. Overcoming the inhibitory milieu of the central nervous system for successful optic nerve regeneration remains elusive, prompting the exploration of neurotrophic support and immunomodulatory interventions. Immunological tolerance, paramount for graft acceptance, confronts the distinctive immunogenicity of ocular tissues, driving research into targeted immunosuppression strategies. Ethical and legal considerations underscore the necessity for stringent standards and ethical frameworks. Interdisciplinary collaboration and ongoing research endeavors are imperative to navigate these complexities. Biomaterials, stem cell therapies, and precision immunomodulation represent promising avenues in this pursuit. Ultimately, the aim of this review is to critically assess the current landscape of whole-eye transplantation, elucidating the challenges and advancements while delineating future directions for research and clinical practice. Through concerted efforts, whole-eye transplantation stands to revolutionize ophthalmic care, offering hope for restored vision and enhanced quality of life for those afflicted with blindness
Previous reproductive history and post-natal family planning among HIV-infected women in Ukraine
No full textBACKGROUND: Ukraine has the highest antenatal HIV prevalence in Europe. The national prevention of mother-to-child transmission (MTCT) programme has reduced the MTCT rate, but less attention has been given to the prevention of unintended pregnancy among HIV-positive women. Our objectives were to describe the reproductive health, condom use and family planning (FP) practices of HIV-positive childbearing Ukrainian women and to identify factors associated with different methods of post-natal contraception.
METHODS: HIV-infected childbearing women, diagnosed before or during pregnancy, were enrolled prospectively in a post-natal cohort study in four regional HIV/AIDS centres in Ukraine from December 2007. Logistic regression models were used to identify factors associated with post-natal FP practices.
RESULTS: Data were available for 371 women enrolled by March 2009; 82% (n = 303) were married or cohabiting, 27% (97 of 363) reported a current HIV-negative sexual partner and 69% were diagnosed with HIV during their most recent pregnancy. Overall, 21% (75 of 349) of women were not using contraception post-natally (of whom 80% reported no current sexual activity), 50% (174 of 349) used condoms, 20% (74 of 349) relied solely/partially on coitus interruptus and 4% used hormonal methods or intrauterine device. Among married/cohabiting women, consistent use of condoms in the previous pregnancy [AOR 1.96 (95%CI 1.06–3.62)], having an HIV-positive partner [AOR 0.42 (0.20–0.87)], current sexual activity [AOR 4.53 (1.19–17.3)] and study site were significantly associated with post-natal condom use; 16% of those with HIV-negative partners did not use condoms. Risk factors for non-use of FP were lack of affordability [AOR 6.34 (1.73–23.2)] and inconsistent use of condoms in the previous pregnancy [AOR 7.25 (1.41–37.2)].
CONCLUSIONS: More than 40% of HIV-positive women in this population are at risk of unintended pregnancy and the one in six women in HIV-discordant couples not using barrier methods risk transmitting HIV to their partners. Our study results are limited by the observational nature of the data and the potential for both measured and unmeasured confounding
ЦИФРОВІЗАЦІЯ ОСВІТНЬОГО ПРОЦЕСУ В ЗАКЛАДАХ ВИЩОЇ ОСВІТИ В УМОВАХ ВОЄННОГО СТАНУ
Get PDFThe article is devoted to the study of the problems of digital transformation of the educational process in wartime conditions, the possibility of using modern information technologies in conditions of limited access to resources and infrastructure. The problem of ensuring the quality of education during martial law and ways to solve this problem with the help of digital technology are also considered. The article discusses the role and impact of digitalization on the educational process in higher education institutions. The authors outline various aspects of the use of digital technologies, such as e-textbooks, video lessons, video conferencing and other tools that can improve the quality and effectiveness of education.
In addition, the article examines the impact of digitalization on the organization of the educational process and interaction between teachers and students. The use of digital tools allows students to participate more actively in the learning process, promotes greater interaction between teachers and students, and also provides a more effective and convenient form of learning.
The article also draws attention to the problems that may arise during the implementation of digital technologies in the educational process. The author analyzes such problems as the lack of access to the necessary infrastructure and technical means, insufficient training of teachers and students in the use of digital tools, as well as problems with the preservation and protection of data.
In conclusion, the author of the article emphasizes that digital technologies are an important tool for improving the quality and efficiency of education in higher education institutions. However, the implementation of digitalization should be carried out taking into account all possible problems and difficulties that may arise.Статтю присвячено дослідженню проблем цифрової трансформації освітнього процесу в умовах воєнного часу, можливості використання сучасних інформаційних технологій в умовах обмеженого доступу до ресурсів та інфраструктури. Також розглядається проблема забезпечення якості освіти під час воєнного стану та шляхи її вирішення за допомогою цифрової технології. Обговорюється роль і вплив цифровізації на освітній процес у закладах вищої освіти. Автори окреслюють різні аспекти застосування цифрових технологій, таких як електронні підручники, відеоуроки, відеоконференції та ін. інструменти, які дозволяють підвищити якість та ефективність освіти.
Крім того, розглядається вплив цифровізації на організацію освітнього процесу та взаємодію між викладачами і студентами, застосування цифрових інструментів, що дозволяє студентам більш активно брати участь у процесі навчання, сприяє взаємодії між викладачами і студентами, а також забезпечує більш ефективну та зручну форму навчання.
Автори звертають увагу на проблеми, які можуть виникнути під час упровадження цифрових технологій у навчальний процес. Аналізуються такі проблеми, як відсутність доступу до необхідної інфраструктури та технічних засобів, недостатнє навчання викладачів і студентів користування цифровими інструментами, а також стосовно збереження і захисту даних. Наголошено, що цифрові технології є важливим інструментом для поліпшення якості та ефективності освіти в закладах вищої освіти. Проте впровадження цифровізації повинно бути здійснене з урахуванням усіх можливих проблем і складнощів, що можуть виникнути
Methodical approaches to assessing the financial and economic security of business entities, taking into account the criterion of financial resource saving
Get PDFМетою статті є дослідження методів оцінки фінансової безпеки, їх апробація на прикладі підприємств машинобудівної та металургійної галузей, виявлення переваг та недоліків існуючих методичних підходів, створення власної авторської методики. Вивчення основних підходів щодо оцінки фінансової безпеки підприємства дозволяє побачити, що більшість вчених визначають рівень фінансової безпеки за допомогою інтегрального показника. Перевагою вказаного методу є зведення всіх характеристик підприємства в єдиний показник, а серед недоліків можна виділити такі: складність розрахунків, відсутність єдності серед авторів стосовно вибору показників та вагових коефіцієнтів. У статті запропоновано авторську методику оцінки фінансової безпеки підприємства, визначено її рівень, здійснено аналіз фінансового стану підприємств машинобудівної та металургійної галузей за допомогою моделі Г. Савицької, О. Терещенка та Е. Альтмана та проведено порівняння отриманих результатів.Целью статьи является исследование методов оценки финансовой безопасности, их апробация на примере предприятий машиностроительной и металлургической отраслей, рассмотрение преимуществ и недостатков существующих методических подходов, составление авторской методики. Изучение основных подходов по оценке финансовой безопасности предприятия позволяет увидеть, что большинство ученых определяют уровень финансовой безопасности при помощи интегрального показателя. Преимуществом указанного метода является сведение всех характеристик предприятия в единый показатель, а среди недостатков можно выделить следующие: сложность расчетов, отсутствие единого мнения среди авторов относительно выбора показателей и весовых коэффициентов. В статье предложена авторская методика оценки финансовой безопасности предприятия, определен ее уровень, осуществлен анализ финансового состояния предприятий машиностроительной и металлургической отраслей при помощи модели Г. Савицкой, О. Терещенко и Э. Альтмана, а также прoизведена оценка полученных результатов.The purpose of the article is studying of the methods of financial security assessment, their approval on an example of the enterprises of machinebuilding and metallurgical branch, investigation of the advantages and lacks of the existent methodical approaches, composition of the own author method. Analysis of the main approaches of the enterprise’s financial security assessment permits to consider, that majority of scientists defines the financial security level by means of the integral index. The advantage of the appointed method is composition of all enterprise’s characteristics to the single index, and among the shortages we can point the calculation complexity, the absence of the single opinion among the authors concerning the selection of indicators and weight coefficients. The own author method of financial security assessment is offered in the article, also author defines it’s level, analyses financial state of the machinebuilding and metallurgical enterprises by means of G. Savitska, O. Tereshenko E. Altman models. Also author makes estimation of the results
Chronobiologic blood pressure self-monitoring from the beginning until the cure of sickness or death
No full textGRAFTS FOR CORONARY SURGERY
No full textResults of surgical treatment of coronary heart disease, both immediate and distant, are directly depend on the consistency of shunts. The variety of factors that determine the good function of the conduit raises a difficult question before the surgeons: what kind of graft should be chosen in every situation? The article presents the analysis of the advantages and disadvantages of various conduits, methods of their application and factors that affect the viability of grafts in the near and in the future.</jats:p
Supplementary Material for: Outcome Comparison of Different Reconstructive Approaches for Axillary Defects Secondary to Radical Excision of Hidradenitis Suppurativa
No full textBackground: Radical excision of debilitating hidradenitis suppurativa lesions is the only curative approach in the advanced stages of the disease. Different concepts for axillary reconstruction do exist, but data on their clinical outcome are scarce. Methods: This is a retrospective cohort study of two reconstructive methods (posterior arm flap vs. vacuum-assisted closure [VAC] + split-thickness skin graft [STSG]) for axillary defects in patients with severe axillary hidradenitis suppurativa treated at the University Hospital Zurich between 2005 and 2020. Results: A total of 35 patients (mean age 36 ± 10 years, mean BMI 29 ± 5 kg/m2, Hurley stage II–III) with 67 operated axillae were stratified according to their type of reconstruction. Median operation time in the flap group was 144 min (IQR 114–207) (cumulative 181 min [IQR 124–300]) and 50 min (IQR 40–81) in the VAC + STSG group (cumulative 151 min [IQR 94–194], p p = 0.20 [cumulative time]). The cumulative length of stay was 6 ± 3 days in the flap group and 14 ± 7 days in the VAC + STSG group (p p p p p = 0.32). The average cost saving was 25% higher for the flap group than for the VAC + STSG group. Conclusion: Despite an increased operation time, axillary reconstruction by the posterior arm flap yields a reduced length of stay, less time to complete wound healing along with restoration of a protective sensibility, and less axillary scarring avoiding functional deficits – eventually allowing earlier return to work
Clinical efficacy of native drug Adgelon in knee osteoarthritis
No full textResults of treatment of 76 pts with knee osteoarthritis with native drug Adgelon (glycoprotein possessing biological activity at super low doses) are presented. WOMAC index, Lequesne functional index and SF-36 questionnaire show analgesic effect and quality of life improvement after 6 intra-articular adgelon injections during 3 weeks. Subsequent follow up for 2 months revealed aftereffect of the drug
