bluuebunny/crossref_metadata_2025 huggingface dataset:
Основные проблемы реконструкции длительно эксплуатируемых подземных сооружений
Authors: КОНЮХОВ Дмитрий Сергеевич
Published: March 2024

К подземным линейным сооружениям отнесены железнодорожные и автодорожные тоннели, метрополитены, гидротехнические и коммунальные городские туннели, в том числе водоснабжающие, пешеходные тоннели в городах, а также подземные объекты специального назначения. Показаны даты возведения таких подземных сооружений в нашей стране и соответственно сроки службы объектов. Приведены нормативные сроки службы для таких сооружений. На примерах конкретных объектов постройки 1930-х гг. и более поздних выявлены дефекты и повреждения тоннелей метрополитенов, железнодорожных тоннелей Крыма, построенных в XIX в. Кроме того, в дополнение к приведенным дефектам, повреждениям и на их основе выявлены параметры, определяющие физический износ подземных линейных сооружений. На примере Северо-Муйского железнодорожного тоннеля Байкало-Амурской магистрали раскрыты методы устранения дефектов указанного тоннеля. Аналогичные результаты были получены при обследовании подходных выработок для строительства ранее законсервированных станций московского метро, в основном расположенных в водоносных малопрочных, трещиноватых, кавернозных известняках. То же относится к Владивостокскому тоннелю и тоннелям Байкало-Амурской магистрали. В целом сложилась достаточно полная общая картина дефектов, позволившая сделать вывод, что категория технического состояния подземных сооружений транспортного назначения в первую очередь определяется не годом возведения, а качеством проектно-изыскательских и строительных работ, принятыми конструктивными решениями, а также условиями эксплуатации. Отмечено отсутствие нормативной базы проектирования и производства ремонтно-восстановительных работ. Для ее восполнения разработан соответствующий стандарт организации.
Жесткость наклонных сечений железобетонных конструкций
Authors: КОЛЧУНОВ Владимир Иванович , КРЫЛОВ Сергей Борисович
Published: March 2024

Предложены расчетная модель и эффективный метод расчета жесткости наклонных сечений железобетонных конструкций в зоне совместного действия изгибающих моментов и поперечных сил с учетом раскрытия трещин и сдвигов между трещинами. Сдвигающие усилия между единичными отрезками (полосками) в рассматриваемой зоне конструкции с наклонными трещинами изучены с использованием уравнений теории составных стержней. Деформации в железобетонной конструкции после образования трещин определяли с применением расчетной схемы в виде условных единичных вертикальных полосок, пересекающих зону наклонных трещин. По результатам опытных данных перемещений в этой зоне построены экспериментальные зависимости сдвига берегов трещин и кривизны рассматриваемого в расчетной схеме малого квадрата, связанного с изгибом нейтральной оси. В итоге получены матрицы жесткости и податливости для сечения железобетонного элемента с наклонными трещинами. Эффективность предложенной модели расчета жесткости наклонных сечений железобетонных конструкций подтверждена сопоставительным анализом теоретических и экспериментальных параметров.
О необходимости анкеровки при проектировании стальных вертикальных цилиндрических резервуаров
Authors: КУЗНЕЦОВ Александр Владимирович , КРАСОТИНА Лариса Владимировна
Published: March 2024

Вертикальные стальные резервуары в настоящее время широко используются на предприятиях химической и нефтехимической промышленности в различных регионах России и за рубежом. В статье проанализированы особенности, которые необходимо учитывать при проектировании этих опасных производственных объектов. Несмотря на то, что в строительной практике расчетные методики при проектировании этих конструкций применяются длительное время, возникает ряд вопросов, которые требуют уточнения, а методики их расчетов дальнейшего развития. Приведен анализ существующих методов расчета вертикальных стальных резервуаров на опрокидывание с использованием расчетных моделей, предусмотренных отечественными нормами проектирования с учетом эффектов динамического поведения конструкций. Показано, что ветровая нагрузка во многом зависит от скорости и порывистости ветра, формы, размеров и места расположения проектируемого резервуара, окружающего рельефа местности и наличия препятствий, формирующих воздушные потоки. Отмечено, что в действующих нормативных документах в явном виде отсутствует методика расчета вертикальных стальных резервуаров на устойчивость против опрокидывания при действии ветровой нагрузки. Это напрямую влияет на надежность и безаварийную эксплуатацию данных сооружений, а также затрудняет вопросы поиска оптимальных конструктивных решений.
Углекомпозитные материалы для усиления железобетонных конструкций при сейсмоусилении зданий
Authors: БАУЛИН Алексей Васильевич , КОРНИЛОВА Анна Владимировна , ЕРМАКОВ Валентин Алексеевич
Published: March 2024

Землетрясения относятся к одним из самых опасных, разрушительных и непредсказуемых стихийных бедствий. Многие территории нашей страны расположены в зонах сейсмической активности. В связи с чем возникает необходимость своевременно обследовать здания и сооружения, находящиеся в сейсмических районах России. Объект исследования - общественное здание в Новосибирске. Было проведено комплексное обследование несущих железобетонных конструкций и узлов их сопряжения, в ходе которого обнаружены дефекты и повреждения элементов здания. Исходя из полученной информации выполнены расчеты, в том числе с использованием программно-вычислительного комплекса на основе метода конечных элементов. Собраны нагрузки на здание с учетом расположения всех перегородок и функционального назначения помещений. Рассмотрено основное и особое сочетание нагрузок. Проанализирована доступная информация об усилении железобетонных конструкций. Представлены возможные варианты усиления основных несущих монолитных конструкций композитными материалами для повышения общей жесткости и сейсмостойкости здания в целом.
Особенности обеспечения параметров микроклимата плавательных бассейнов
Authors: УЛЯШЕВА Вера Михайловна , ИВАНОВА Юлия Витальевна , АВЕРЬЯНОВ Владимир Константинович , ЦЫГАНКОВ Александр Васильевич
Published: March 2024

Рассмотрена проблема обеспечения требуемого качества воздушной среды плавательного бассейна для поддержания влажностного режима. Проанализированы инженерные методы и технические решения обеспечения параметров микроклимата в плавательных бассейнах. Проведены расчеты фактического поступления влаги в помещение по различным методикам. Представлен сравнительный анализ данных, полученных аналитическим путем и в результате натурного обследования, с проектными данными. Выполнен анализ результатов математического моделирования микроклиматических параметров рассматриваемого бассейна и инженерно-технических решений организации воздухообмена. На основании проведенного исследования рекомендованы конкретные технические решения по соблюдению требований качества воздушной среды и поддержания заданных параметров микроклимата в помещениях с повышенной влажностью.
Enhancement of Flexural Strength by Slip Casting Cordierite Ceramics with h-BN Nanoparticles
Authors: Park Chul Oh , Lee Jong Hyun , Lee Dong Kyun , Cho Hyun Jun , Yim Sung Hwan , Lee Kyu Hyoung
Published: March 2024

In this study, we enhanced the flexural strength of cordierite ceramics by incorporating h-BN (hexagonal boron nitride) nanoparticles, facilitated by the slip casting process. Initially, commercial cordierite powder with an average particle size of 10 mm underwent a ball-milling process to reduce the size to 2.5 mm and simultaneously achieve a narrower particle size distribution. The resulting slurry, composed of 67% solid content, exhibited improved stability during the slip casting process for both pristine cordierite and the mixture containing 1 – 2 wt% h-BN nanoparticles. After sintering, the bulk material containing 2wt% h-BN nanoparticles demonstrated a remarkable flexural strength of 174.8 MPa, a significant improvement compared to the initial 119.5 MPa obtained without the addition of h-BN. It is worth noting that the introduction of h-BN nanoparticles did not induce substantial changes in dielectric constant and thermal conductivity, indicating that the desired mechanical enhancement did not compromise other crucial material properties. This research demonstrates a successful approach to concurrently optimize the flexural strength, dielectric constants, and thermal conductivity of cordierite ceramics. This breakthrough opens up new avenues for advanced applications in a wide range of fields, from electronics to aerospace, where high-strength, thermally stable materials are in demand.
Shelley and the Retentive Memory
Authors: Crook Nora
Published: March 2024

This essay approaches the familiar subject of memory in Shelley through examining his exceptional gift for retentive memorization, a gift not unique to him, but also conspicuously possessed by Byron. A few instances, mostly taken from the Shelley circle and the poet Henry Kirke White, demonstrate the encouragement given to the development of a retentive memory during the Romantic period, and the admiration that it attracted, but also the apprehensiveness lest it become an end in itself. Examples follow of memory feats performed by Byron and Shelley independently and interactively, focusing on the effect upon Shelley’s political poetry of 1819 of hearing Byron read the early part of Don Juan to him in the autumn of 1818, including portions that Shelley could not have reread in the interval. The question arises: did Shelley worry that his memory was a burden, tempting him into unwitting plagiarism? His draft revisions indicate that he sometimes might have done.
P. B. Shelley, George William Tighe, and the Irish Roots of ‘The Sensitive-Plant’
Authors: Cozzi Elisa
Published: March 2024

This essay investigates the literary exchanges between the Irish poet and agronomist George William Tighe and Percy Bysshe Shelley in Pisa, where the former lived with Margaret King Mount Cashell, alias ‘Mrs Mason’, a radical Irish writer and former pupil of Mary Wollstonecraft. After moving to Pisa in 1820, Shelley began daily visits to the Mason-Tighe household, sourcing from Tighe's library a wealth of reading material on agricultural chemistry and botany, alongside Irish political and historical titles. Tighe's previously unexamined papers showcase his interests in Irish and Italian literature, republicanism, botany, and agriculture and reveal his links with the Lunar Society of Birmingham. Taking as a case study the first poem Shelley composed in Pisa, I argue that Tighe's agricultural pursuits shaped Shelley's political and botanical imagination in ‘The Sensitive-Plant’ and exerted a significant influence on Shelley's later poetry as a whole.
‘—and so this tree— / O that such our death may be—’: Shelley’s Last Treescapes
Authors: Blake Davis Amanda
Published: March 2024

Trees shift between visual, literal, and rhetorical figures in Shelley’s poetry, where distinctive tree species accentuate particular qualities of verse. Attentive to the final year of Shelley’s life, this essay explores the treescapes of the poet’s ultimate work, ‘The Triumph of Life’, and the pine’s suspension of time in Shelley’s last lyrics to Jane Williams: ‘To Jane. The Invitation’, ‘To Jane–The Recollection’, and ‘With a Guitar. To Jane’. The pines that populate the Jane Poems are complicit in the arrestation of the lyrical moment, embalming poetic speaker and subject in deathly amber. In ‘The Triumph of Life’, broadleaved species – the chestnut and the poplar – regenerate the fallen leaves of the ‘Ode to the West Wind’ by sowing the seeds of posterity. Rooted in a tradition of arboreal poetics from the classical world to the contemporary, Shelley’s trees construct an allusive network of intertextual echoes.
Inovasi Produk Mesin Tepat Guna Dengan Pendekatan Fishbone Dan AHP (Analytic Hierarchy Process) Pada UMKM Komoditas Herbal Kabupaten Jombang
Authors: Sulung Rahmawan Wira Ghani  , Mahrus Ali  , Elly Rustanti
Published: March 2024

Hilirisasi produk hasil penelitian untuk kepentingan peningkatan perekonomian di suatu daerah adalah mutlak di lakukan, tak terkecuali kabupaten jombang, jawa timur. Dalam perkembanganya kabupaten jombang telah banyak memiliki produk-produk UMKM yang sedang bertumbuh secara perekonomian,  diantaranya umkm yang menyediakan produk – produk bumbu makanan dan bahan herbal yang berbahan asli komoditas kabupaten Jombang (local pride product). Dengan menggunakan pendekatan Fishbone diagram dan AHP, inovasi produk mesin ini di bangun dalam skala laboratorium sebagai dasar kajian penelitian dan pengembangan produk industri daerah. Dalam penjelasanya metode fishbone diagram di gunakan untuk melakukan pertimbangan kriteria yang akan di usung. Sedangkan integrasi dengan metode AHP digunakan untuk memutuskan prototype mesin tepat guna dengan kriteria yang sangat di butuhkan oleh pelaku usaha komoditas herbal kabupaten Jombang, hasil yang di dapatkan terciptalah mesin yang sesuai kebutuhan UMKM komoditas herbal.
A new perspective of frozen shoulder pathology; the interplay between the brain and the immune system
Authors: Navarro-Ledesma Santiago , Hamed-Hamed Dina , Pruimboom Leo
Published: March 2024

Frozen shoulder (FS), also known as adhesive capsulitis of the shoulder (FS), is a fibrotic inflammatory process of unknown etiology whose main symptoms are pain, stiffness and the loss of joint mobility. These symptoms may be associated with pathologies such as diabetes, Dupuytren’s syndrome and the prevalence of today’s sedentary lifestyle. This literature review provides an overview of the epidemiology and pathogenesis of this pathology, as well as the mechanisms of lowgrade chronic inflammation and infection, insulin resistance, and omics-science associated with it. We also propose a new hypothesis related to the possibility that the GABAergic system could play a decisive role in the development of frozen shoulder and that therefore diabetes type 1, endocrinological autoimmune disorders and frozen shoulder are connected by the same pathophysiological mechanisms. If that is true, the combined presence of psycho-emotional stress factors and pathogenic immune challenges could be the main causes of frozen shoulder syndrome. Finally, we propose a series of possible intervention strategies based on a multifactorial etiological and mechanistic concept.
Differential Competitive Growth of Transgenic Subclones of Neuroblastoma Cells Expressing Different Levels of Cathepsin D Co-Cultured in 2D and 3D in Response to EGF: Implications in Tumor Heterogeneity and Metastasis
Authors: Secomandi Eleonora , Esposito Andrea , Camurani Giulia , Vidoni Chiara , Salwa Amreen , Lualdi Chiara , Vallino Letizia , Ferraresi Alessandra , Isidoro Ciro
Published: March 2024

Neuroblastoma (NB) is an embryonal tumor arising from the sympathetic central nervous system. The epidermal growth factor (EGF) plays a role in NB growth and metastatic behavior. Recently, we have demonstrated that cathepsin D (CD) contrasts EGF-induced NB cell growth in 2D by downregulating EGFR/MAPK signaling. Aggressive NB is highly metastatic to the bone and the brain. In the metastatic process, adherent cells detach to form clusters of suspended cells that adhere once they reach the metastatic site and form secondary colonies. Whether CD is involved in the survival of metastatic NB clones is not known. Therefore, in this study, we addressed how CD differentially affects cell growth in suspension versus the adherent condition. To mimic tumor heterogeneity, we co-cultured transgenic clones silenced for or overexpressing CD. We compared the growth kinetics of such mixed clones in 2D and 3D models in response to EGF, and we found that the Over CD clone had an advantage for growth in suspension, while the CD knocked-down clone was favored for the adherent growth in 2D. Interestingly, on switching from 3D to 2D culture conditions, the expression of E-cadherin and of N-cadherin increased in the KD-CD and Over CD clones, respectively. The fact that CD plays a dual role in cancer cell growth in 2D and 3D conditions indicates that during clonal evolution, subclones expressing different level of CD may arise, which confers survival and growth advantages depending on the metastatic step. By searching the TCGA database, we found up to 38 miRNAs capable of downregulating CD. Interestingly, these miRNAs are associated with biological processes controlling cell adhesion and cell migration. The present findings support the view that during NB growth on a substrate or when spreading as floating neurospheres, CD expression is epigenetically modulated to confer survival advantage. Thus, epigenetic targeting of CD could represent an additional strategy to prevent NB metastases.
Conservation Challenges Imposed by Evolutionary History and Habitat Suitability Shifts of Endangered Freshwater Mussels under a Global Climate Change Scenario
Authors: Reis Joaquim , Perea Silvia , Gama Mafalda , Mendes Sofia L. , Sousa Vitor C. , Lima Cristina , Banha Filipe , Gil Maria , Alvarez Maria Garcia , Anastácio Pedro , Sousa Santos Carla , Araujo Rafael
Published: March 2024

Climate change and associated shifts in temperature and precipitation patterns have become an increasing concern as drivers of ongoing biodiversity loss. The Mediterranean region is particularly vulnerable, being both a biodiversity hotspot and a region very prone to desertification. Freshwater mussels are amongst the most threatened invertebrate taxa worldwide. Unio tumidiformis is an endemic and endangered species restricted to the southern Iberian Peninsula, living in temporary Mediterranean-type streams. Freshwater mussels need a fish host for successful larval transformation, meaning U. tumidiformis must belong to the genus Squalius. The main objective of this study was to evaluate the vulnerability of U. tumidiformis to climate change, by studying its population genetics and evolutionary history, its current and future habitat suitability, and that of its hosts. Genetic population structure and diversity were assessed using Single-Nucleotide Polymorphisms through Genotyping by Sequencing and used to infer species evolutionary history. The species potential distribution was modeled using an ensemble forecasting approach, and future shifts in habitat suitability were assessed with the projected climate data layers from Worldclim. Most populations showed extreme genetic differentiation (Fst up to 0.745), even from close neighboring ones. Upper Guadiana populations were more diverse and less differentiated. We hypothesize that U. tumidiformis originated in Upper Guadiana and followed the same colonization routes as their hosts with numerous founder effects and bottlenecks. Our results also predicted a reduction of 99% of climatically suitable areas for U. tumidiformis in the Iberian Peninsula until 2040. For the fish hosts, a maximum 42% reduction in suitable areas was estimated throughout the century, with remaining adequate habitats in the north. Our results suggest that difficult conservation options are necessary, prioritizing the preservation of populations, translocations to the northern area of its historical range and stream engineering to increase resilience to droughts.
Load Frequency Active Disturbance Rejection Control Based on Improved Particle Swarm Optimization
Authors: Wang Jidong , Sun Yu
Published: March 2024

A load frequency control (LFC) system based on active disturbance rejection control (ADRC) is designed to solve the problem of frequency modulation caused by large-scale renewable energy grid connection. Traditional parameter-tuning methods are inefficient and often fail to achieve desired control outcomes. To overcome this, an improved Particle Swarm Optimization (PSO) algorithm is introduced, incorporating Levy flight and chaotic mapping. This enhanced algorithm combines the long step–length search capability of Levy flight with the rapid exploration of initial solution space using Tent chaotic mapping, enhancing PSO’s global search ability and addressing premature convergence issues. Simulation results demonstrate that the ADRC controller optimized by the improved algorithm exhibits greater robustness and smaller deviation compared to the original algorithm, showcasing its excellent control performance.
Ostrom’s Razor: Using Bitcoin to Cut Fraud in Hollywood Accounting
Authors: Rivera Ted , Foderick Dave
Published: March 2024

The accounting principles prevalent in Hollywood are seemingly crafted to mislead creators and investors. Film studios and streaming platforms have been found to use complex strategies to annually divert millions in net profits. Many contracts include audit clauses, but the cost of auditing a billion-dollar system is prohibitive for most creatives with “net profit” deals. However, a resourceful minority have recovered billions in profits and damages. We suggest using Bitcoin’s transparent, immutable ledger to eliminate fraudulent accounting and build trust among profit-seeking filmmakers willing to trade maximum income for maximum profit per share. This trust can be spread globally utilizing the Bitcoin network as a transparent and immutable triple-entry accounting system. Our research shows that distributing this decentralized trust is achievable by configuring an ecosystem of existing Bitcoin wallets, applications, and recorded contracts to create a universal source of truth for all parties assisting in the creation of valuable content in the form of movies. This network can form the foundation on which to build a legal blockchain infrastructure that can eventually facilitate the sale of tokenized securities, discretely disseminate recorded financial data, and transparently distribute revenue to a collective of filmmakers indefinitely.
Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications
Authors: Suchikova Yana , Kovachov Sergii , Bohdanov Ihor , Karipbayev Zhakyp T. , Zhydachevskyy Yaroslav , Lysak Anastasiia , Pankratov Vladimir , Popov Anatoli I.
Published: March 2024

This study introduces an innovative method for synthesizing Cadmium Oxide /Cadmium Sulfide/Zinc Oxide heterostructures (CdO/CdS/ZnO), emphasizing their potential application in solar energy. Utilizing a combination of electrochemical deposition and oxygen annealing, the research provides a thorough analysis of the heterostructures through scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), Raman spectroscopy, and photoluminescence (PL) spectroscopy. The findings reveal a complex surface morphology and a composite structure with significant contributions from hexagonal CdS and cubic CdO phases. The study highlights the uniformity in the distribution of luminescent centers and the crystalline quality of the heterostructures, which is evident from the PL analysis. The redshift observed in the emission peak and the additional peaks in the excitation spectrum indicate intricate optical properties influenced by various factors, including quantum confinement and lattice strain. The research demonstrates these heterostructures’ potential in enhancing solar cells’ efficiency and applicability in optoelectronic devices. This comprehensive characterization and analysis pave the way for future optimization and application in efficient and sustainable solar energy solutions.
Causes and Effects of Climate Change 2001 to 2021, Peru
Authors: Tafur Anzualdo Vicenta Irene , Aguirre Chavez Felipe , Vega-Guevara Miluska , Esenarro Doris , Vilchez Cairo Jesica
Published: March 2024

Climate change is an imminent threat to humanity that brings significant environmental, social, and economic consequences worldwide, with population growth and deforestation among these effects. The research aims to analyze the causes and effects of climate change over the last 30 years. Various sources of information were analyzed to interpret the consequences; therefore, it is important to understand and analyze the causes and effects of climate change, generating information on temperature trends, precipitation, and glacier loss from 1990 to 2020. The evidence of the increase in the average temperature of the planet is becoming increasingly solid. The average annual temperature in the Coast region ranges from 21.1 to 22.6 °C, in the Sierra region from 12.6 to 14.4 °C, and in the Jungle region from 22.7 to 25.7 °C. Annual average precipitation in the Coast region varies from 22.3 to 174.1 mm, in the Highlands region from 570 to 834.3 mm, and in the Jungle region from 1156 to 2093 mm. The White Mountain Range has lost approximately 40.5% of its total glacier coverage on average, and between 1996 and 2019 the amount of tropical glaciers has decreased by 28.17%. It was concluded that the threats of climate change are increasingly evident, due not only to environmental pollution but also to the various human activities that generate changes in the environment.
Contextual and Individual Determinants of Sustainable Careers: A Serial Indirect Effect Model through Career Crafting and Person-Career Fit
Authors: Kilic Eren , Kitapci Hakan
Published: March 2024

The evolving nature of contemporary careers has sparked an interest in the sustainability of individual careers, which encompasses the pursuit of careers in a manner that promotes health, productivity, and overall happiness. Although previous studies have provided valuable perspectives on sustainable careers, there remains a notable lack of evidence regarding the interplay between individual and contextual determinants in crafting sustainable careers. Therefore, integrating the framework of sustainable careers with the Conservation of Resources (COR) theory, this study proposes a serial indirect effect mechanism that examines the relationship between contextual determinants (i.e., work/family demands and resources) and career sustainability indicators (i.e., work-family balance, employability, work engagement, and work strain) sequentially through career crafting and person-career fit. A two-wave time-lagged survey was conducted with 412 employees from Turkey. Hierarchical regression analyses were performed to test the proposed model, while Process Macro analyses were conducted to examine the serial indirect effects. Results showed that contextual demands and resources were positively associated with career crafting and such career initiatives were related to optimized person-career fit and career sustainability indicators. Notably, contextual determinants were indirectly related to employability and work engagement serially via career crafting and person-career fit. Highlighting the importance of a whole-life perspective in career development, which involves work and family contexts, this study reveals the integral role of career proactivity and its interplay with contextual determinants in building sustainable careers.
Calculation of Time-Varying Mesh Stiffness of Internal Gears based on Precise Tooth Profile and Dynamic Analysis of Planetary Systems with Root Cracks
Authors: Dongjiang Cao , Fengwei Qin , Lisong Cao , Hongjjie Chang
Published: March 2024

The internal meshing spur gear pair is the research object, and the potential energy method is applied to calculate the time-varying meshing stiffness of the internal gear. The internal gear tooth profile is divided into two parts: involute and transition curves, and the gear tooth stiffness is calculated by numerical integration based on accurate tooth profile, which improves the calculation accuracy. Analyzed the influence of different crack size parameters on the stiffness of internal meshing gears. A coupled dynamic model of a planetary system with internal gear crack faults was established, and the influence of cracks on the dynamic response of the planetary system was studied using Zoom-FFT spectrum and cepstrum analysis methods. The simulation results show that as the crack parameter size increases, the mesh stiffness of the internal gear pair gradually weakens, and the periodic vibration impact of the planetary-internal gear pair is also more severe. Cepstrum analysis can easily capture weak fault characteristic frequency information in the system and discover their variation patterns. The research results can provide a theoretical basis for the state monitoring and fault diagnosis of gear systems with crack defects.
Analysis Of Good Corporate Governance, Liquidity, And Company Size On The Quality Of Financial Reports
Authors: Nugraheni Novita
Published: March 2024

This study intends to examine how firm sizes, liquidity, and effective corporate governance affect financial statements. In this study, agency theory is employed. The study's independent variables include the size of the organization, liquidity, and excellent corporate governance. The quality of the financial reports is one of the research's dependent variables. Consumer products firms that floated on the Indonesia Stock Exchange between 2019 and 2021 make up the sample for this study. SPSS is employed in the quantitative research methodology. The linear regression analysis method is used in this study. This study will demonstrate effective corporate governance and the effects of firm size on the reliability of financial reports. In the meanwhile, the quality of financial reports is unaffected by liquidity.
Enhancing balance in Parkinson's disease patients
Authors: Ponebšek Ana , Kresal Friderika , Šlosar Luka
Published: March 2024

Various physiotherapeutic methods and approaches play a significant role in the treatment of patients with Parkinson’s disease, including the use of enriched environments. Virtual reality (VR) as a type of enriched environment has the potential to create multiple sensory experiences and feedback, influencing various aspects of the patient’s information processing and response. The suitability for home use and the considerable impact on motivation highlight its advantages over alternative approaches. The objective of this review is to investigate the impact of VR-based exercise on balance outcomes among individuals with Parkinson’s disease. The inclusion criteria consisted of randomized controlled trials (RCTs) that examined the effects of exercise in a VR environment on individuals’ static and dynamic balance outcomes. In order to gather relevant studies, we conducted a comprehensive search across three databases. From a dataset of 625 records, we conducted a comprehensive full-text screening based on specific inclusion and exclusion criteria. This process resulted in the inclusion of 14 RCTs in our review. The emerging evidence regarding exercising in a VR environment does not definitively prove its superiority over standard exercise routines. However, studies have demonstrated that both the experimental and control groups showed comparable improvements in enhancing static and dynamic balance among individuals with Parkinson’s disease. The comparable improvements in balance observed between the experimental and control groups signify the potential effectiveness of VR-based exercises. This underscores the encouragement for further development in this technology, particularly focusing on fully immersive VR environments, which may yield superior effects in enhancing balance among individuals with Parkinson’s disease.
Foot posture index and hip joint rotation mobility in handball and soccer players
Authors: Brezovar Tjaž , Drobnič Matej , Kacin Alan
Published: March 2024

Purpose: To assess the foot posture and hip joint mobility of elite handball and soccer players and to investigate possible correlations between these measurements.
Methods: We compared the differences in means of Foot Posture Index (FPI), passive hip internal (IR), and external (ER) rotation range of motion (ROM) between three groups of male subjects (17 handball players, 17 soccer players, and 16 non-athletes). The Kruskal-Walli’s test and post-hoc pairwise comparison with the Mann-Whitney U test were used to determine the differences between the group means, and associations between variables were analyzed with Spearman’s correlation coefficient.
Results: No significant differences in the mean FPI were found between the soccer players (1.3 ± 2.9), handball players (0.7 ± 2.1), and the control group (1.7 ± 2.5) (p > 0.05). Similarly, no significant difference was found between the groups in the hip ER ROM. In contrast, a significantly lower (p < 0.05) hip IR ROM was observed in the soccer players (30.6° ± 5.3°) compared to the handball players (41.0° ± 8.1°) and the control group (41.1° ± 6.4°). A weak positive correlation was only observed between the FPI and hip IR ROM in the soccer players (ρ: 0.36, p = 0.035).
Conclusions: Handball and soccer players show a tendency toward less pronated feet compared to non-athletes, but the differences are not significant and the mean FPI values are still within the range of normal foot posture. The range of hip IR seems to be reduced in soccer players and weakly, but significantly and positively associated with the FPI value, which needs to be further investigated in future studies.
growing issue of overuse injuries in young athletes
Authors: Trojner Teodor , Kelc Robi
Published: March 2024

Over the past two decades, participation in professional sports among children and adolescents has surged despite the rising inactivity and obesity rates. Approximately 60 million young individuals in the USA are involved in organized sports. This increase has led to a concerning rise in overuse syndromes, which is becoming a primary concern in sports medicine.
Our review aims to examine common overuse syndromes in youth athletes and assess risk factors, pathophysiology, and preventive measures. Early sports specialization, societal pressures, and competitive demands lead to repetitive strain injuries. The young musculoskeletal system, though adaptable, is prone to injuries from intense training and insufficient recovery.
Prevention advocates against early sports specialization and promotes adequate rest. Diversifying sports, limiting training hours, and a robust support system are recommended to counteract the mental effects of intense specialization.
In summary, a holistic approach is needed to address overuse syndromes, emphasizing diversification, education, and a balanced approach to sports.
Effects of graded exercise therapy and medical care on chronic fatigue syndrome
Authors: Zličić Tamara , Korovljev Darinka , Šćepanović Tijana , Milovanović Ivana
Published: March 2024

Purpose: Chronic Fatigue Syndrome (CFS) / Myalgic Encephalomyelitis (ME) is a complex condition with debilitating symptoms that significantly impact individuals, particularly those in the working population. This study aims to investigate the effectiveness of Graded Exercise Therapy (GET) and Cognitive Behavioral Therapy (CBT) along with additional methods such as Graded Exercise Self-help (GES), Adaptive Pacing Therapy (APT), and Specialist Medical Care (SMC), in managing Chronic Fatigue Syndrome (CFS) / Myalgic Encephalomyelitis (ME) among the working population.
Methods: A systematic analysis of five randomized controlled trials conducted between 2013 and 2023, encompassing GET, CBT, APT, SMC, and GES was performed using PubMed.
Results: The selected studies consistently demonstrate that GET positively impacts physical functioning and reduces fatigue levels in working individuals with CFS. Additionally, CBT proves valuable, emphasizing the importance of addressing the mental aspects of CFS in occupational contexts.
Conclusion: This review underscores the need for further research, advocating for direct assessment methods like biomarkers to enhance our understanding of CFS and improve treatment outcomes. These insights are crucial for healthcare practitioners, researchers, and policymakers navigating the complexities of CFS within the workplace. Emphasizing the integration of psychological interventions with physical therapies is essential for a comprehensive approach to managing CFS among the working population.
AAVMC Use of Animals in Veterinary Education Handbook
Authors: AAVMC  , Hunt Julie , Delcambre Jeremy , Baillie Sarah
Published: March 2024

In 2021, the American Association of Veterinary Medical College’s (AAVMC) Board of Directors established a Task Force to develop Guidelines on the Use of Animals in Veterinary Education. The Task Force consisted of representatives from nine AAVMC member schools from four countries across three continents. The Guidelines, published online in October 2022, offered recommendations for schools on how to improve their animal use policies, use of animal alternatives, and transparency.While the Guidelines provided overarching principles and broad recommendations, the next step was to write a handbook to accompany the Guidelines, elaborating on how institutions could implement the Guideline’s recommendations, enabling them to support and promote humane and ethical animal use, guided by the 4 Rs: replacement, reduction, refinement, and respect. The editors worked with internationally recognized co-authors to create the Handbook. The Handbook’s 11 chapters align with the recommendations made in the Guidelines. Authors describe and share best practices for acquisition and use of cadavers; use and management of live animals including small, large, and exotic and zoological species; and highlight where alternatives can be deployed in meeting educational outcomes.The Guidelines and the AAVMC Handbook on the Use of Animals in Veterinary Education allow educators worldwide to review and, where appropriate, adjust their veterinary programs’ approaches and policies. The Guidelines and Handbook should be interpreted as guiding principles and are not meant to be prescriptive. Individual institutions are encouraged to consider their own unique institutional, national and regional circumstances.
Digital transformation and student satisfaction at the Autonomous University of Chile
Authors: Muñoz Acuña Javier Manuel , Hernández-Perlines Felipe , Ibarra Cisneros Manuel Alejandro
Published: March 2024

The great advances that derive from the technological revolution 4.0 have permeated higher education institutions, which have been forced to initiate extensive transformation processes that consider the integration of digital technologies to guarantee student satisfaction, maintain their social validity and ensure their sustainability. In this article, focused on the case of the Autonomous University of Chile, the existence of causal relationships between the Digital Transformation model of that University and the Student Satisfaction Index model proposed by Turkyilmaz, Temizer and Oztekin (2018) is demonstrated. The objective of the research was to determine the impact of the digital transformation on the student’s satisfaction of that University. The structural equation modeling technique was applied, using the data obtained from a questionnaire applied to 313 students at that University in the month of May 2023. The analyzes carried out empirically validated the proposed theoretical model, demonstrating that perceived quality is the variable that has the greatest effect on student satisfaction, and finding that the expectations created regarding the results of the digital transformation of the University have a negative influence on the satisfaction; In other words, the higher the expectations about digital transformation, the more difficult it will be to satisfy students and achieve their loyalty to the institution.
Editorial: Education in the age of artificial intelligence
Authors: Charchuła Jarosław , Kowalski Mirosław
Published: March 2024

The progress of civilisation is the ground for enormous changes in the life of every human being. The development of information technology, telecommunications or multimedia is a huge step in the history of all civilisation. This evolution from the industrial era, where we were dealing with an industrial society, is moving us to an information society based on artificial intelligence (AI). Information is becoming the basis not only for the smooth functioning of all types of institutions – but also, and perhaps above all, for the educational process. The implementation of artificial intelligence in the education system is a topic that generates both enthusiasm and concern. On the one hand, the possibilities it offers in the context of education seem almost limitless, promising, among other things, the personalisation of teaching, the optimisation of teaching processes and support in the diagnosis and development of students’ skills. On the other hand, there are questions about data security, ethics and the potential replacement of teachers by machines.
Doskonalenie kompetencji cyfrowych w klastrach
Authors: Bembenek Bogusław
Published: March 2024

CEL NAUKOWY: W artykule dokonano charakterystyki wybranych aspektów doskonalenia kompetencji cyfrowych w polskich klastrach w warunkach transformacji cyfrowej.

PROBLEM I METODY BADAWCZE: W procesie badawczym zastosowano tradycyjną metodykę przeglądu literatury naukowej, analizę danych zastanych (desk research) i metodę studium przypadku. W trakcie badań jakościowych metoda studium przypadku pozwoliła na pogłębioną eksplorację wybranego problemu badawczego.

PROCES WYWODU: Nie ulega wątpliwości, że doskonalenie kompetencji cyfrowych jest źródłem rozwoju osobistego i zawodowego, w tym zdobywania wiedzy i doświadczenia oraz kształtowania inteligencji cyfrowej. Mając świadomość wartości tej aktywności w klastrach, uznano za zasadne skoncentrowanie się na analizie wybranych dobrych praktyk klastrów w tym obszarze.

WYNIKI ANALIZY NAUKOWEJ: Z przeprowadzonych badań i analiz wynika, że klastry zapewniają odpowiednie warunki do rozwoju kompetencji cyfrowych, które są bardzo użyteczne w warunkach transformacji cyfrowej. Ich aktywność innowacyjna i społeczno-gospodarcza sprzyja ciągłemu i sprawnemu kształtowaniu tych kompetencji w wymiarze informatycznym, informacyjno-komunikacyjnym i funkcjonalnym. Jest to bardzo ważne, gdyż może przyczynić się do osiągnięcia przez nie dojrzałości cyfrowej.

WNIOSKI, REKOMENDACJE I APLIKACYJNE ZNACZENIE WPŁYWU BADAŃ: Podjęta w artykule aktualna i naukowo interesująca tematyka badawcza wymaga dalszych, bardziej pogłębionych i interdyscyplinarnych badań i analiz. Zasadne jest uwzględnienie szerszych rozważań naukowych dotyczących postrzegania nie tylko metod, form i narzędzi rozwoju kompetencji cyfrowych, ale także przygotowania do transformacji cyfrowej i stopnia wykorzystania potencjału sztucznej inteligencji. Badania z tego obszaru mogą przyczynić się do lepszego poznania współczesnych procesów, zjawisk i trendów w gospodarce opartej na wiedzy oraz przyśpieszyć sprawną transformację cyfrową w warunkach turbulentnego otoczenia.
Analisa Desain High Availability dan Uji Reabilitas Cloud Storage
Authors: Prabowo Hari Yudho , Mukti Aan Restu , Suryayusra  , Ariyadi Tamsir
Published: March 2024

The growth of the Internet has brought about significant changes in how we store data. Common data storage media include hard disks, flash drives, and CDs. With the advancement of technology, cloud storage has emerged as a new alternative in the world of storage. In this regard, two leading cloud storage platforms, Owncloud and Nextcloud, have evolved into popular options. The purpose of this research is to evaluate the level of High Availability and reliability of Owncloud and Nextcloud cloud storage platforms. This is accomplished by conducting load testing and simulating failure scenarios to assess the platforms' ability to ensure data access during disruptions and enhance performance under high loads. The research methodology used is the Network Development LifeCycle (NDLC). The software employed as the operating system is Ubuntu Server 20.04, and for web server load testing, Netdata and Nagios are used to monitor the system. The results of this research provide comprehensive information on the high availability and reliability of Owncloud and Nextcloud cloud storage platforms in modern computing environments.
Implementasi Komunikasi Islam Qaulan Maysura dalam Membentuk Kesantunan Berbahasa Di Bank Sumut
Authors: Lubis Afifi , Azhar
Published: March 2024

This research aims to determine the implementation of Islamic communication Qaulan Maysura in forming language politeness at Bank Sumut. This research applies a descriptive qualitative method with a phenomenological approach in order to identify problems through direct observation of the natural conditions of the research object. The data sources for this research consist of primary data obtained through observation and secondary data sourced from literature reviews. The data analysis process involves reducing findings, presenting descriptively, and verifying to support the validity of research results. This approach is designed to provide an in-depth understanding of the phenomenon under study and has the potential to contribute to the development of theoretical or practical understanding in the context of the research being carried out. The results of this research show that Bank Sumut applies the Qaulan Maysura concept, teaching employees to communicate with words of wisdom, politeness and kindness. Politeness includes clarity of information, respect and gentleness in interactions with customers. This approach is not only a communication strategy, but also an effort to strengthen customer trust and loyalty, making Bank Sumut a partner that cares about the human aspect in every interaction.
Penerapan Metode Human Centered Design pada Perancangan Sistem Informasi Curhat Online Berbasis Web
Authors: Astuti Nita Fuji , Kurniasih Tatit
Published: March 2024

Mental health is a very worrying health case in recent times. The number of cases that have hit the young generation of our nation is a serious threat. Pressures and challenges are often major factors in mental health crises and lack of support and places to tell stories to make a person keep everything in his mind that can hurt his mind and mentality. In this case, the research aims to overcome the problem through the implementation of a website-based online vent information system designed as a means of online vent using a Human-Centered Design approach. This Human-Centered Design approach involves a stage of user context specification, user needs, system design, and system testing using the Blackbox testing method and WebQual method. The main objective of this information system is to provide a safe and structured platform for individuals to express their feelings and emotions comfortably and safely, as well as provide support to reduce the level of mental and mental stress among the young generation of Indonesia.
Social Media Marketing Strategies and Their Impact on Brand Equity and Buying Interest in Cake & Bakery
Authors: Mariam Siti , Defran Hanif Muhammad
Published: March 2024

Increasing competition in the food industry, especially in the cake and bread sector, encourages companies to increase their marketing competitiveness through social media, requiring marketers who can build strong brands. Even though the number of followers of a company on social media has become a general indicator, it cannot provide a definite picture of how much buying interest these followers have in the products being sold. This research explores the influence of social media marketing activities on brand equity and purchasing Interest in the food industry, especially in cake and bread products. This study takes a quantitative approach by analyzing data collected from the followers of Kumo Cake's Instagram account. By using a straightforward random sample technique, 122 participants from the Jabodetabek region were chosen for the survey. A Structural Equation Model (SEM) is used for the analytical purpose. The study's findings demonstrate that SMM campaigns boost brand equity, which in turn increases purchase interest, and that brand equity influences buy interest in a positive and statistically significant way. These results have important implications for food sector firms looking to improve their social media marketing strategy in order to raise consumer interest in their brands and products.