bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of stress and health conditions among students in the context of the war in Ukraine
Authors: Potop Vladimir , Vypasniak Igor , Ivanyshyn Iryna , Lutskyi Vasyl , Kryventsova Iryna , Shesterova Lyudmila , Prusik Katarzyna
Published: December 2024

Background and Study Aim. In the context of a military conflict, students’ health is subjected to significant stress and psychological challenges. Monitoring the health condition of this vulnerable group can provide important data for developing effective support measures. The aim of this study is to assess the level of stress and health condition of students in Ukraine during the war and to compare these indicators with those of students from neighbouring countries, Poland and Romania.
Materials and Methods. The study used the Perceived Stress Scale (PSS-10) questionnaire to assess stress levels among students. A total of 443 students participated: 36 from Poland, 215 from Romania, and 179 from Ukraine. Factor analysis (PCA) was employed to test the validity and reliability of the PSS-10 questionnaire structure, with the number of factors determined using the Kaiser criterion. Reliability was assessed using Cronbach's alpha coefficient. The Python library in the PyCharm CE environment was used as the analysis tool. The Mann-Whitney test was applied for group comparisons. Correlation analysis was conducted between the overall PSS-10 score and measures of positive and negative affect. A logistic regression model was used to identify predictors of stress.
Results. The results of the factor analysis showed that both factors significantly and reliably measure different aspects of stress. Cronbach's alpha values for Factor 1 (0.87) indicate high reliability, while for Factor 2 (0.79), they indicate good reliability. A correlation of 0.89 for Factor 1 indicates a very strong positive relationship between this factor and the overall level of stress. A correlation of 0.69 for Factor 2 indicates a strong positive relationship, though not as strong as Factor 1 (p=0.0000). The results confirm that the overall PSS-10 scores are closely related to both positive and negative emotional states, with a more pronounced impact on negative emotions. The highest number of students with a stress level of 2 is observed among students from Ukraine (32.65%) and Romania (35.60%), while in Poland this figure is 4.99%.
Conclusions. The study showed that the military conflict in Ukraine significantly affects the psycho-emotional state of students, causing high levels of stress, anxiety, and depression. Younger students and women were found to be particularly vulnerable. These results underscore the need to develop targeted support programs to improve the mental health of students in the context of the war.
Recreational and rehabilitation aspects of psychological health and well-being of students: a systematic review
Authors: Korobeinikova Lesia , Yermakova Tetiana , Korobeynikov Georgiy , Vitenko Daniil
Published: December 2024

Background and Study Aim. Given the increasing attention to the psychological health and well-being of students, it is important to consider the impact of recreational and rehabilitation aspects. The purpose of this study is to analyze documents from the Web of Science (WoS) database from 2014 to 2024, focusing on the recreational and rehabilitation aspects of students' psychological health and well-being.
Materials and Methods. A systematic search was conducted in the Web of Science (WoS) database using keywords related to psychological health, well-being, recreation, and rehabilitation of students. A total of 318 documents (articles) were retrieved. The extracted documents were processed using the PYCharm Community Edition (CE) development environment and special codes in the Python programming language. The K-means method was used for clustering the articles based on the presence of keywords. A total of 294 documents (out of 318) were identified that met the criteria of this study. Cluster analysis was used to group the retrieved articles by topic. Content analysis was applied to identify the main directions and trends in the research.
Results. The review identified a significant number of studies dedicated to various aspects of students' psychological health and well-being. These aspects include the impact of physical activity, social support, mindfulness programs, and nutrition. Key factors contributing to the improvement of students' psychological state, as well as the main barriers and problems they face, were identified. The study results showed that physical activity and psychological strategies play a key role in improving students' mental health. Significant differences were found in the levels of stress and well-being depending on participation in recreational and rehabilitation activities.
Conclusions. Recreational and rehabilitation activities play an important role in maintaining and improving the psychological health and well-being of students. Students face a complex set of barriers that negatively impact their mental and physical health. These barriers include high levels of stress, lack of physical activity, sleep disturbances, financial difficulties, and social isolation. The war in Ukraine adds another level of stress and trauma, requiring special attention.
Modern infrared thermography photonics in biomedicine
Authors:   Novosibirsk State University, Vaǐner Boris G.
Published: December 2024

It is shown in the paper that modern photonics, implemented in the form of the focal plane array
(FPA)-based infrared thermography (FPA-based thermal imaging), has high potential for highly informative extraction of new knowledge about the mammal's organism, including humans.
Controlling the efficiency of second harmonic generation from a metasurface due to its mechanical stretching
Authors:   Moscow Institute of Physics and Technology, Kislov Denis A. , Shalin Alexander S. ,   Beijing Institute of Technology
Published: December 2024

Second harmonic generation using metasurfaces with controlled optical properties is an active area of research in photonics and optics. The work shows that the use of metasurfaces with controlled optical properties makes it possible to control and enhance SHG. For example, a change in the geometry of the metasurface can lead to an increase in the nonlinear polarizability of the substance and, consequently, to more efficient generation of the second harmonic. In addition, metasurfaces can be designed in such a way as to ensure phase consistency of the second harmonic wave, which also helps to increase the SHG efficiency. Thus, the use of metasurfaces with controlled optical properties represents a promising approach for creating efficient and compact frequency-doubled light sources. This could have important practical applications in optical communications, laser technology, and other areas that require highly efficient generation of light in the visible and near-infrared ranges.
Spectral design of the signal with multiple non-central chirping
Authors:   Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences, Shapiro Elena G. , Shapiro David A. ,   Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences
Published: December 2024

A method is proposed that helps to reduce the nonlinear distortion of signals for amplitude-phase modulation, using the 8-QAM format as an example. Non-central chirping also gives the ability to control
the frequency regions and partition the channel into multiple parts.
ЕНЕРГОЗБЕРІГАЮЧІ РЕЖИМИ НАСИЧЕННЯ ЦУКРОЗОЮ ЧАСТИНОК ПЛОДУ ЛИМОНУ
Authors: Гузьова Ірина Олександрівна , Атаманюк Володимир Михайлович
Published: December 2024

Дана стаття присвячена вирішенню проблеми насичення частинок плодів лимону цукрозою за мінімальний проміжок часу за умов максимального енергозбереження. Авторами статті розроблені режими насичення частинок плоду лимону. Насичення частинок проводилося в двох режимах. Перший – режим настоювання, сироп в стані спокою. Дослідження проводили за температур 50 °С, 60 °С, 70 °С, 80 °С, 90 °С. Другий – режим барботування, об’єм сиропу барботується повітрям через дренажну тарелю. Частинки плоду лимону при цьому знаходяться на решітці, зануреній в сироп над дренажною тарелею. Дослідження в режимі барботування проводили за температури 70°С та витратах повітря (м3/с): 6,25·10-5; 8,06·10-5; 12,5·10-5; 15,6·10-5, що відповідає швидкості через отвори дренажної тарелі: 3 м/с; 4 м/с; 6,5 м/с; 8 м/с відповідно.
Авторами статті доведено, що найменші енерговитрати (ΣQ = 8,353 кДж/кгсиропу) будуть під час насичення частинок лимону цукрозою за умов барботування сиропу за температури 70°С повітрям швидкістю 6,5 м/с, що підтверджує економічну доцільність даного методу.
В роботі наведені та проаналізовані залежності зміни швидкості насичення від концентрації та в часі. Аналіз залежностей доводить, що на початку процесу швидкість насичення зменшується. На цьому етапі відбувається процес масовіддачі молекул цукрози з барботуючого розчину до поверхні частинок, значну роль при цьому відіграє процес масовіддачі, що сприяє скороченню часу насичення порівняно з насиченням в умовах настоювання.
В роботі проведені узагальнення експериментальних даних залежності зміни концентрації цукрози в плодах лимону в часі за температури 70 °С в режимі барботування за різних швидкостей. В результаті узагальнення експериментальних даних методом теорії подібності, виведені критеріальні рівняння, які дають змогу розрахувати коефіцієнт масовіддачі молекул цукрози через границю розділу фаз в середину частинки в різних гідродинамічних режимах. Також отримані рівняння дають змогу розрахувати кількість цукрози, яка переходить з сиропу в частинку плоду лимону шляхом масовіддачі.
ДОСЛІДЖЕННЯ ТЕПЛОФІЗИЧНИХ ХАРАКТЕРИСТИК ТЕПЛОАКУМУЛЯЦІЙНОГО МАТЕРІАЛУ
Authors: Коник Аліна Василівна , Декуша Ганна Валеріївна
Published: December 2024

Застосування теплоакумуляційних матеріалів (ТАМ) в системах акумуляції тепла та теплових акумуляторах дає поштовх до пошуку нових акумуляційних рідин з певними технічними характеристиками, що будуть відповідати індивідуальним умовам експлуатації. Пошук складових теплоакумуляційного матеріалу та його технічні характеристики є актуальним предметом досліджень у сучасній тепловій енергетиці. Особлива увага приділяється ТАМ, що працюють з низькопотенційними джерелами енергії, що відповідає розвитку концепції безкарбонової енергетики.
У запропонованій статті представлено результати експериментальних досліджень водневого показника і густини теплоакумуляційного матеріалу, що використовується у дослідному зразку мобільного теплового акумулятору МТА-0,5МВт створеного за державним замовленням у Інституті технічної теплофізики НАН України. Теплоакумуляційний матеріал складається з речовин, що широко представлені на ринку України, є не токсичними, вибухо- і пожежобезпечними та екологічними. Дослідження проведено за стандартними методиками.
Для досліджень відібрано чотири зразки – вода (контрольний зразок), ТАМ до застосування та після двох і чотирьох опалювальних сезонів, відібраних з акумулятора ємнісного типу дослідного зразка МТА-0,5МВт. Отримані результати зміни рН і густини свідчать про доцільність застосування теплоакумуляційних матеріалів на основі багатофункціональних порошків у діапазоні температур від 20 до 90°С, оскільки рідини залишаються нейтральними, а зміни густини відбуваються в межах 1–2%.
МАТЕМАТИЧНА МОДЕЛЬ І МЕТОД РОЗРАХУНКУ ДИНАМІКИ ТЕПЛОМАСООБМІНУ В ЗОНІ КОНДЕНСАЦІЇ ТЕПЛОВОЇ ТРУБИ
Authors: Сорокова Наталія Миколаївна , Половинкін Костянтин Олександрович
Published: December 2024

Розроблена математична модель і чисельний метод розрахунку динаміки переносу теплоти в зоні конденсації циліндричної теплової труби з металоволокнистою капілярно-пористою структурою на внутрішній поверхні. Капілярна структура – гніт – забезпечує рециркуляцію робочого тіла з зони конденсації в зону випаровування незалежно від орієнтації теплової труби в просторі. Математична модель описує спряжену задачу дифузійно-фільтраційного тепломасопереносу і фазових перетворень в капілярно-пористому шарі, що контактує з насиченою парою робочого тіла, та теплопровідності в стінці труби, від зовнішньої поверхні якої теплота конденсації пари відводиться охолоджуючому теплоносію. Вміст інертних газів в тепловій трубі є знехтувано малим. Відповідно система диференційних рівнянь включає рівняння переносу енергії, масопереносу парової та рідкої фаз робочого тіла в капілярно-пористому шарі, і рівняння теплопровідності для металевої стінки труби, записаних для двовимірної розрахункової області. Система рівнянь замикається формулами для інтенсивності фазових перетворень, ефективних коефіцієнтів дифузії рідкої і парової фаз, коефіцієнту проникності гніту, тиску насичення,  капілярного тиску, під дією якого відбувається відведення конденсату в зону випаровування.  Результати чисельних експериментів свідчать про можливість застосування математичної моделі та методу розрахунку для управління процесами тепловідведення з метою організації ефективної термостабілізації термонапружених поверхонь в процесі експлуатації теплових труб, а також на етапі їх проєктування.
ДОСЛІДЖЕННЯ ВИГОТОВЛЕННЯ АЛЬТЕРНАТИВНОГО ТВЕРДОГО ПАЛИВА З БУРЯКОВОГО ЖОМУ
Authors: Іващук Олександр Сергійович , Атаманюк Володимир Михайлович , Чижович Роман Андрійович , Манастирська Владислава Анатоліївна , Собечко Ірина Борисівна
Published: December 2024

У даній роботі представлено результати досліджень щодо можливості виготовлення альтернативного брикетованого твердого палива з бурякового жому, що сприятиме утилізації відходів цукрового виробництва та раціональному використанню природних ресурсів. Для збільшення терміну зберігання вторинної сировини та можливості подальшого формування альтернативного твердого палива, буряковий жом попередньо було осушено методом фільтраційного сушіння. За допомогою методу калориметричного спалювання було досліджено основні показники дослідного матеріалу: вміст вологи, вміст золи та теплота згорання. Визначено, що для несформованої рослинної сировини теплотворна здатність становить ≈ 15900 кДж/кг, вологість < 1% мас., зольність ≈ 4,3% мас. Одержані результати показали доцільність подальших досліджень щодо створення брикетованих твердопаливних зразків із осушеного бурякового жому. Встановлено, що одержані за допомогою гідравлічного пресу брикети мають теплотворну здатність ≈ 16318 кДж/кг, вологість < 1% мас., зольність ≈ 4,8% мас. Виготовлені твердопаливні брикети з бурякового жому за своїми параметрами близькі до існуючих європейських стандартів щодо твердого палива. Отримані результати вказують на перспективність використання бурякового жому як альтернативного твердого палива, що дозволить знизити залежність від традиційних повільновідновлювальних паливних ресурсів і забезпечити додаткове використання великих об’ємів відходів цукрової промисловості, що сприятиме раціональному використанню вторинної рослинної сировини.
ДОСЛІДЖЕННЯ ЕЛЕКТРОДИНАМІЧНОГО АПАРАТУ ДЛЯ ЗНЕВОДНЕННЯ НЕНЬЮТОНІВСЬКИХ РІДИН
Authors: Кравченко Олександр Юрійович
Published: December 2024

Висвітлено актуальні проблеми процесу сушіння, особливу увагу приділено рослинній сировини реологічної структури. Розглянуто традиційні шляхи вирішення завдань зневоднення неньютонівських рідин, представлені у науковій літературі. Виділено перспективний напрямок щодо організації процесу дегідратації, який полягає у використанні іншого джерела енергії – інфрачервоного випромінювання. Проведено аналіз наукових публікацій, присвячених перевагам інфрачервоного поля у сфері масообмінних процесів. Підтверджено, що електромагнітне випромінювання інфрачервоного діапазону має великі перспективи при сушінні рослинної сировини. Однак в розглянутих роботах існує певний ряд недоліків, що не дозволяють максимально використати потенціал такого джерела енергії. Особливо це стосується конструкцій установок, на яких проводилися дослідження процесу сушіння. Найважливіший серед них – це періодичний режим роботи. Будь-які наукові дослідження повинні бути направлені на перспективу впровадження новітніх розробок у виробництво і безперервний режим роботи будь-якого обладнання є вагомою умовою і конкурентоспроможною рисою при впровадженні у промисловість. В зв’язку із цим було запропоновано електродинамічний апарат для зневоднення неньютонівських рідин, який дозволяє здійснювати цей процес в потоці. Стенд для проведення досліджень оснащений регуляторами потужності інфрачервоних модулів та швидкості руху стрічки. В результаті проведених експериментальних досліджень було отримано дані, які слугували для побудови важливих кінетичних залежностей. Найбільшу увагу привертають лінії швидкості сушіння. Вони показали, що значення швидкості сушіння чітко корелюють із рівнем підведеної потужності інфрачервоного поля. Швидкість руху стрічки привносила незначні зміни, тому швидкість сушіння змінювалась в невеликому діапазоні. Загалом, на основі отриманих результатів було підтверджено працездатність та перспективність розробленої конструкції стрічкового електродинамічного апарату.
Professor D. AT. Yaremenko is an outstanding representative of the Sytenko School of Orthopedics and Traumatology (on his 90th birthday)
Authors: Thankut V. O. , Shevchenko O. G. , Golubeva I. IN. , Berenov K. V. , Androsenkova V. A
Published: December 2024

Professor D. AT. Yaremenko is a talented scientist and an experienced orthopedic traumatologist, an outstanding specialist in diagnostic and treatment problems
deformities of the foot, organization of prosthetic and orthopedic support and rehabilitation for the consequences of injuries and diseases of the musculoskeletal system
systems.
Does the type and length of nail affect the stability of fixation of subtrochanteric fractures under low displacement forces?
Authors: Güran Ortaç , Gencer Batuhan
Published: December 2024

The treatment of subtrochanteric fractures is a highly contentious area, given the complex biomechanical properties and displacing muscle forces involved. Indeed, the debates cover almost all aspects of the treatment. Objective. To evaluate the biomechanical properties of three distinct intramedullary nails in order to identify the most reliable fixation method for subtrochanteric reverse oblique femur fractures. Methods. An osteotomy was performed in accordance with the 31A3 (intertrochanteric reverse oblique) fracture model on 24 synthetic femur bone models. Following the achievement of anatomical reduction, each group was fixed with a distinct implant system: An A-PFN (220 mm in length), an A-PFN (280 mm in length), and a cephalomedullary nail (360 mm in length). The evaluation of all models was conducted under both single and cyclic loading conditions, and an assessment of the fracture lines and total femur displacements was performed. Results. No significant correlation was observed between the groups with regard to fracture line displacement (p > 0.05). However, a notable distinction was evident in total femur displacement between the groups under both single and cyclic loading conditions (p < 0.001 and p = 0.004, respectively). Post-hoc analyses demonstrated that the discrepancies between the group comparisons were between the A-PFN (220 mm in length) and the other two fixation methods. Conclusions. Both short and long nails provide adequate and similar stability in an anatomically reduced reverse-oblique subtrochanteric fracture model. This suggests that anatomical reduction is more crucial than implant selection in subtrochanteric single-line fractures. While longer implants do not affect the displacement of the fracture line, they do affect the total displacement of the femur, creating a more rigid femur.
OPTIMIZATION OF TREATMENT TACTICS FOR PATIENTS WITH COMBINED UNSTABLE INJURIES OF THE PELVIS AND LONG BONES OF THE LOWER LIMBS
Authors: Buryanov Olexander , Kvasha Volodymyr , Domin Volodymyr , Lianskorunskyi Volodymyr , Vashkevych Bohdan
Published: December 2024

Treatment of polytrauma patients with multiple fractures in general and «pelvis + lower extremities» in particular is a complex, topical and debatable problem today. Combined injury of the pelvis and TBI is observed in 16.9–58.7 % of cases, pelvis and lower limbs — in 49.2 %, pelvis and upper limbs — in 32.2 %, pelvis and chest organs — in 21.2–45.7 %, pelvis and bdominal organs — in 31.5–43.9 %, pelvis and spine — in 9 %. Objective. To improve treatment outcomes in patients with combined pelvic and lower extremity injuries by optimizing treatment tactics. Methods. The clinical study is based on the examination and treatment of 38 patients with combined injuries of the pelvis and lower extremities between 2014 and 2023. The average age of the patients was (41.4 ± 16.3) years. Typing of fractures of the pelvis and long bones of the lower extremity was carried out according to the AO classification, and the condition of patients was assessed according to the TS scale. Results. Guided by the provisions of the "damage control" concept, the nature of surgical interventions for victims with multiple and combined pelvic injuries can be presented in the following sequence: stabilizing, restorative, reconstructive, or reconstructive-restorative. Stabilizing surgical interventions are part of the resuscitation complex, the purpose of which is to preserve life by reducing pain reactions and blood loss. Conclusions. Unstable combined pelvic ring injuries require initial multidisciplinary treatment aimed at stopping or limiting life-threatening bleeding. The use of compressive devices (pelvic belt, Seattle technique) is a mandatory component of staged treatment. Individual treatment tactics and their extent depend on the overall condition of the patient, however, the basic principle of the first stage is to ensure the stability of the pelvis: in type B damage, of the anterior semi-ring, in type C damage, of both semi-rings, which has a positive effect on the anatomical and functional result and allows to avoid dangerous prognosis for life.
Regulation of reparative processes of proximal femur fractures by correction of arterial hypertension (experimental study)
Authors: Pavlov Sergiy , Valilshchykov Mykyta , Babalian Volodymyr , Babenko Nataliia , Kumetchko Marina , Litvinova Olga , Babaieva Olga
Published: December 2024

Objective. To study the regulation of reparative processes of proximal femur fractures at intramedullary osteosynthesis against concomitant arterial hypertension correction (by IFN-γ and biochemical parameters). Methods. The experiment involved 36 rats from two groups: healthy normotensive rats and rats with genetically determined arterial hypertension (SHR). Animals of both groups were divided into subgroups. The rats of subgroups 1.2, 2.2, and 2.4 underwent closed mini-invasive intramedullary osteosynthesis after a simulated proximal femur fracture. Rats of subgroups 2.3 and 2.4 were corrected for arterial hypertension with enalapril. The levels of IFN-γ, total protein, aspartate aminotransferase, alanine aminotransferase, and alkaline phosphatase were determined in the serum of the animals. In the animal groups bone density indices were measured and the relative area of newly formed bone tissue in the bone callus was determined. Results. The level of IFN-γ was elevated after surgery in animals of all groups. The level of this cytokine was higher in SHR rats compared to the same values in intact animals. Administration of enalapril decreased the concentration of IFN-γ. A multidirectional change in the levels of biochemical indices in the blood of animals was demonstrated. It was found that bone mineral density was significantly reduced in the SHR animals group compared to intact animals. According to histomorphometric analysis, the largest relative area of newly formed bone tissue in the bone callus was in intact rats. The relative area of bone trabeculae in the animal group receiving enalapril therapy was greater than in the untreated group. Conclusions. Correction of concomitant arterial hypertension leads to optimization of repair processes of the proximal femur fractures in an experiment.
ON THE PATH TO SOCIAL SUSTAINABILITY: ENHANCING PRODUCTIVITY AND WELL-BEING THROUGH STRUCTURED TIME MANAGEMENT AT AKER SOLUTIONS
Authors: Assis da Rosa Gabrielle , Lopes de Carvalho Picinatto Jessyca , Furlan Rodrigues Nathalia Cristina , Queiroz Schünemann Manfrin de Oliveira Guilherme Augusto
Published: December 2024

Purpose: The aim of this study is to examine the effectiveness of specific interventions designed to improve the productivity and well-being of Aker Solutions employees by reorganizing their work routines and meeting structures.
Theoretical framework: The theoretical framework is based on the principles of Cal Newport's "Deep Work," David Allen's "Getting Things Done" (GTD), and Eisenhower's Decision Matrix, providing a structured approach to enhancing productivity through focused work and effective time management.
Methodology/Approach: The methodology involves a quasi-experimental design with pre- and post-intervention measures. Data were collected through performance indicators and surveys with employees to assess changes in productivity, stress levels, and job satisfaction.
Findings:  The results indicate a significant improvement in productivity indicators and a reduction in stress and fatigue among employees after the interventions. Engagement levels positively correlated with the success of the implemented time management strategies.
Research, practical & social implications:  This study emphasizes the importance of structured time management and task prioritization in enhancing employee performance and well-being, suggesting that these strategies can be applied across various organizational contexts. Additionally, aligning effective time management practices with the social sustainability principles of ESG can foster a healthier and more equitable work environment, promoting a balanced work-life equilibrium.
Originality/ Value:  The significance of this study lies in its application of productivity theories within a genuine corporate environment, providing tangible evidence of their efficacy. It enriches existing literature by demonstrating how these practices can be tailored to meet the specific needs of organizations and employees, while also highlighting the importance of policies that foster a fair and sustainable work environment, reinforcing a commitment to social responsibility and ethical governance.
The influence of chronoanalysis on the delivery of laboratory results in a sugar-alcoholic process
Authors: Dos Santos Bernardo Thaís , Luis Garcia Hermosilla José , Cristine Scarduelli Pacheco Bruna
Published: December 2024

Objective: The objective of this study is to describe the use of the chronoanalysis technique in laboratory processes of a medium-sized industry in the sugar and alcohol segment and its impacts on process improvement, particularly on the response time of analytical results.
Theoretical Framework: Chronoanalysis is a technique based on the study of times and movements to identify and eliminate activities that do not add value to the process, aiming to optimize time and improve efficiency.
Methodology/Approach: Applied research, with a descriptive objective, based on a case study of a sugar and alcohol plant, addressing qualitative aspects of the quality control sector where it presents the mapping of activities.
Results: The application of chronoanalysis concepts allowed the identification and elimination of aspects that did not add value to the process, resulting in a significant reduction in analysis time by 33.65%. This improved the conditions for delivering results and facilitated the identification of flaws in the product manufacturing process.
Contributions, practical and social implications: The study demonstrated that the application of chronoanalysis can have a positive impact on the efficiency of laboratory processes, reducing the turnaround time for results and contributing to improving quality and efficiency in the sugar and alcohol industry.
Originality/Value: The findings could be highly relevant to other industries wanting to improve their laboratory processes and reduce the risk of non-conformities.
Keywords: Chronoanalysis; Study of time and movements; Standard time; Process mapping; Analyses.
CONVERGENCES BETWEEN ESG AND CIRCULAR ECONOMY
Authors: Honorato Glaucio , Peroni Roberta
Published: December 2024

Purpose: The aim of this study is to analyze and compare the implementation stages of ESG practices from the “B3 Guide to ESG Sustainability in Companies” with the implementation of Circular Economy recommendations that are included in the ISO 59000 series and in the “Circular Economy in Practice” guide from the Brazilian National Confederation of Industry.Theoretical framework: Climate Change has generated global challenges that demand actions/practices, such as ESG and CE, to mitigate impacts and promote sustainability, balancing environmental preservation and economic development, especially in Brazil due to its challenges in terms of preservation and development. Methodology/Approach: This article carried out a documentary analysis of sources on ESG and EC practices and recommendations, selected them and composed a comparative table. Findings: The results of this analysis and comparison revealed high convergence between the steps and recommendations of these practices, which highlights the strong complementarity in the implementation of ESG and EC practices, suggesting other issues to be investigated by futures research.Research, practical & social implications: Given the relevant and growing concern with sustainability and the search for more responsible and resilient business models, studies like this can help guide a more sustainable future and even create value for companies and society.Originality/Value: In addition to being unprecedented, this analysis/comparison and the theoretical bases raised original questions, including for future research related to the theme.Keywords: Sustainability; ESG B3 Implementation; Circular Economy NCI Guidelines; ISO 59000; Comparative Analysis.
“Can forms speak from the spiritual world?” Rudolf Steiner’s Goetheanum and the Search for New Artistic Forms in the Early 20th Century
Authors: Sokolov Boris
Published: December 2024

This article presents an examination of the architectural theory and practice of Rudolf Steiner. This concept is exemplified by two buildings of the Goetheanum and the architectural style of the Anthroposophical community in the Swiss village of Dornach. Steiner’s architectural theory was predicated on the spiritualization of forms, as he himself put it, on what he termed the “enchanted” (hinzaubert) wall. In this regard, the construction of the First Goetheanum was not merely a matter of building; rather, it was a process of sculpting wood by the members of the community, who imprinted their creative and spiritual efforts upon the building. In his explanation, Steiner stated that the shapes of the interior should be concave and graphic, while those of the exterior should be swollen and convex. This was done to demonstrate the spiritual pressure coming from within. In the concrete Second Goetheanum, constructed in 1922, a counterpoint of images is evident: an elongated hall within and vertical pillars supporting the dome without. Consequently, the concept of a “spiritual skull” and pairs of “spiritual legs,” which Steiner incorporated into the interior of the initial structure, is reflected on the façades of the Second Goetheanum. Steiner’s architectural theory and practice occupy a significant position in the history of architecture during its transition from Art Nouveau to the avant-garde. His contributions assist in elucidating the genesis of Expressionist architecture. Steiner’s ideas exhibit parallels with the works of the literary visionary Paul Scheerbart, Bruno Taut and the Crystal Chain group, as well as with the late architecture of Antoni Gaudí. The construction of the Goetheanum, which bore resemblance to Nikolai Fedorov’s Philosophy of Common Deed, had a profound influence on the Russian participants (Maria Sievers, Andrei Bely, Asya Turgeneva, Margarita Voloshina), altering the course of their lives and inspiring the creation of invaluable memoirs.
Long-term survival of patients with advanced intrahepatic cholangiocarcinoma after regional chemotherapy
Authors: Turlak A. S. , Kozlov A. V. , Polikarpov A. A. , Moiseenko A. V. , Tarazov P. G. , Granov D. A.
Published: December 2024

The paper presents the results of successful regional chemotherapy applied in the treatment of two patients with unresectable cholangiocellular carcinoma. In the first case, a 57-year-old female patient with metastatic cholangiocarcinoma demonstrated an overall survival of 8 years following a regimen that combined systemic and regional chemotherapy. Within 6.5 years, the patient underwent 25 cycles of endovascular treatment, three of which were conducted post-relief of mechanical jaundice using a stent. The adverse effects of chemotherapy, characterized by mild anemia and thrombocytopenia, necessitated no additional treatment. In the second case, a 73-year-old patient with bilobed tumor underwent 31 cycles of regional chemotherapy in combination with systemic therapy; the overall survival accounted for 5 years. The combination of regional and systemic chemotherapy can be considered safe and effective for the management of advanced cholangiocellular carcinoma. The combination of endovascular chemoembolization and chemoinfusion is regarded as promising.
Balloon-occluded retrograde transvenous obliteration in patients with liver cirrhosis and variceal transformation of gastric veins: first experiences of Botkin hospital
Authors: Shabunin A. V. , Bagatelia Z. A. , Bedin V. V. , Drozdov P. A. , Levina O. N. , Tsurkan V. A. , Astapovich S. A. , Lidzhieva E. A.
Published: December 2024

Aim. To analyze first experiences and demonstrate the results of balloon-occluded retrograde transvenous obliteration in patients with liver cirrhosis and variceal transformation of the gastric veins.

Materials and methods. In the period from November 2023 to August 2024, balloon-occluded retrograde transvenous obliteration was performed on six male patients with liver cirrhosis and gastric varices for secondary prevention of bleeding. The mean age of the patients comprised 56.5 years. Significant gastrorenal shunt and predominantly right-sided drainage of gastroesophageal varices were considered technical indications for the procedure.

Results. No fatalities or complications necessitating reoperation were reported. The follow-up period revealed no recurrences of bleeding. The overall survival rate over six months comprised 100%. Progression of gastric varices was noted in two out of six patients: one patient underwent a repeat procedure, while the other underwent liver transplantation.

Conclusion. Balloon-occluded retrograde transvenous obliteration is recognized as a safe and effective radiological intervention for addressing complications associated with portal hypertension. However, it obtains several limitations and potential adverse effects, which necessitate careful monitoring during follow-up.
Pathomorphology of portal vascular beds and varicose veins of the stomach in intrahepatic portal hypertension
Authors: Manukyan G. V. , Malov S. L. , Ghigalova S. B.
Published: December 2024

The present paper explores current views on the pathological anatomy of the vessels within the portal vascular bed with a specific focus on the gastric varices. In addition, it discusses the mechanisms of hemodynamic alterations in venous circulation among patients with intrahepatic portal hypertension. The emphasis on the condition of the gastric varices arises from a series of unresolved issues that persist regarding surgical strategies and the differentiated selection of various interventions in the context of gastric varices and the risk of bleeding. An understanding of the pathomorphology and hemodynamics of the gastric venous system is considered crucial for the effective treatment of patients with varicose transformation of the gastric veins.

Aim. To present current views on the architectural characteristics of the vessels within the portal vascular beds, as well as the pathomorphology of the gastric varices in the context of intrahepatic portal hypertension.
Acute biliary pancreatitis: severity criteria, role of biliary sludge, treatment
Authors: Dyuzheva T. G. , Shirkunov A. P. , Barbado Mamedova P. A. , Belykh E. N. , Sokolov A. A. , Stepanchenko A. P. , Pashkovskaya A. A. , Kharkov D. I.
Published: December 2024

Aim. To investigate the severity criteria of acute biliary pancreatitis in various causes of bile outflow obstruction into the duodenum, including biliary sludge, and to analyze the treatment outcomes of patients.

Materials and methods. A retrospective analysis was conducted on the diagnostic and treatment results of 89 patients with a confirmed cause of obstruction of the common bile duct following endoscopic papillosphincterotomy. The severity of pancreatitis was assessed in terms of organ failure, pancreatic necrosis, and the severity of cholangitis. The presence of sludge in the gallbladder was evaluated by means of ultrasound, and papillitis was assessed during esophagogastroduodenoscopy.

Results. In Group 1, 23 patients had biliary sludge as the cause of bile outflow obstruction; in Group 2 (n = 32), the cause lied in an impacted stone; and in Group 3 (n = 34), in choledocholithiasis. Organ failure was noted in 11 patients of group 1, in 13 patients of group 2, and in 7 patients of group 3 (p < 0.04). In group 1, organ failure occurred against the background of pancreatic necrosis (n = 7) and acute cholangitis (n = 4); in group 2, all 13 patients exhibited acute cholangitis (p < 0.05). The proportion of patients with papillitis was significantly higher in Groups 1 and 2. Sludge in the gallbladder was detected in 14 patients of Group 1, 4 patients of Group 2, and 8 patients of Group 3 (p < 0.001). Nasobiliary drainage after endoscopic papillosphincterotomy was applied in 34 cases, pancreatic duct stenting in 33 cases, and invasive interventions for peripancreatitis in 9 cases. 3 patients (3.4%) died.

Conclusion. Pancreatic necrosis and acute cholangitis determined the severity of acute biliary pancreatitis, which is consistent with the concept of 2 types of disease – pancreatic and biliary. Biliary sludge in the bile duct, alongside impacted stones, caused bile duct obstruction in patients with organ failure. Sludge in the gallbladder and papillitis, along with signs of biliary hypertension, suggest its presence in the common bile duct and indicates the need for endoscopic papillosphincterotomy. The identified patterns appear relevant and may be considered in protocols for subsequent prospective studies.
Hristiyanlıkta Heretik Kavramının Dönüşümü: Erken Dönem ve Reform Bağlamında Bir İnceleme
Authors: Buşgut Hayriye
Published: December 2024

Bu çalışmada, bir dini topluluğun temel inanç ve öğretilerine meydan okuyan veya bunlarla uyuşmayan alternatif görüşler olarak tanımlanan “heresi” ve bu gö- rüşlerle ilişkilendirilen kişileri ifade eden “heretik” kavramları ele alınmıştır. Bu kavramların içeriklerinde ve kullanım biçimlerinde tarih boyunca yaşanan deği- şimler incelenmiş; özellikle Hristiyanlığın ilk yüzyıllarından itibaren, ana akım öğretilerle uyumsuz görülen gruplar ve şahısların hangi etkenlere bağlı olarak sap- kın (heretik) ilan edildikleri tartışılmıştır. Bu bağlamda, erken dönem Hristiyanlık tarihindeki (I-IV. yüzyıllar) fikir ayrılıkları ve 16. yüzyıldan itibaren Reform ha- reketi sürecinde Katolik Kilisesi’nin heretik tanımına yaklaşımı analiz edilmiştir. Bununla birlikte, Reform sonrası Protestan hareketin de başka din mensuplarını heretik olarak nitelendirmesi, heretik teriminin tam bir tanımını yapmayı ve kap- sam alanını belirlemeyi güçleştirmiştir.
Yapılan çalışmada amaç, Katolik merkezli bir perspektifle Hristiyanlıkta here- tik kavramında yaşanan değişimi incelemek ve bu değişimin Avrupa’daki etkile- rini tartışmaya açmaktır. İlk yüzyıllarda heretiklik, konsillerde belirlenen Hristi- yan itikadına yönelik eleştirileri kapsarken ilerleyen yıllarda Kilise’nin güç elde etmesiyle Kilise’ye karşı herhangi bir eleştiri heretik olmakla eş tutulmuştur. 16. yüzyıl ise reform çağı olduğundan Kilise, bu defa da reformistleri heretik ilan et- miştir. Heretiklik, siyasi, toplumsal ve dini tüm aykırılıkları kapsayacak boyutlara gelmiştir. Ancak bu çalışmada yalnızca Katolik Kilisesi’nin heresi anlayışı değil, reformasyon sonrası heresi algısı da tartışmaya açılarak İslamofobi ve antisemi- tizmin kökleri etüt edilecektir. Dünya tarihini ve çağımız meselelerini anlamanın yolu bahsedilen süreçlerdeki neden sonuç bağlantısını kurabilmek olduğundan bu meselelere olabildiğince kapsayıcı yaklaşılmaya çalışılmıştır.
Uşak şehrinde çıkmaz sokakların morfolojik analizi
Authors: Yasak Üzeyir , Sıtmaç Cahitcan
Published: December 2024

Çalışmanın kapsamını Anadolu şehri morfolojisindeki cadde-sokak dokusunun önemli bir kısmını oluşturan çıkmaz sokaklar oluşturmaktadır. Artan nüfus ve değişen toplumsal ihtiyaçlar ekseninde yeni planlama süreçleri, çıkmaz sokaklarının karakteristik özelliklerini etkilemiştir. Dolayısıyla bu değişimin hem morfolojik hem de toplumsal olarak nasıl ortaya çıktığı anlamak önemlidir. Araştırma, Uşak’taki çıkmaz sokakların mahalle düzeyinde dağılımını haritalamayı, morfolojik özelliklerini ve kullanım biçimlerini analiz etmeyi amaçlamaktadır. Araştırma sonucunda Uşak’ta 79 çıkmaz sokak olduğu tespit edilmiştir. Şehrin ilk kurulduğu ve şehri doğu-batı istikametinde ikiye bölen karayolunun kuzeyinde bulunan Aybey, Işık, Karaağaç ve Sarayaltı gibi mahallelerde çıkmaz sokakların sayısı daha fazladır. Kentsel sit alanın içinde bulunduğu mahallelerde bu tür sokaklar yoğun olarak görülmektedir. Morfolojik özellikleri bakımından çıkmaz sokaklar, saf ve sızdıran tip olarak ikiye ayrılmıştır. Osmanlı şehirlerine özgü ivicaçlı, dar ve organik bir doku sergileyen çıkmaz sokakların aksine, Uşak’taki çıkmaz sokaklar düzdür ve alan derinliğini en üst düzeye çıkarmayı amaçlayan geometrik bir planlama yaklaşımını yansıtır. Tarihî konutlarla çevrili geleneksel çıkmaz sokaklar çalışma alanında bulunmamaktadır. Bunun yerine, bu sokaklar tek katlı konutlar veya yer yer 3-4 katlı apartmanlarla çevrelenmiştir. Sonuç olarak araştırmada, Uşak’taki gelenekselden modern şehir planlamasına geçişi ve bunun şehrin sokak yapısı üzerindeki etkisi vurgulamaktadır.
2023 Depremleri afet bölgesinde NO2 troposferik yoğunlukların mekânsal-zamansal sıcak noktaları
Authors: Özçelik Derya , Küçükönder Muhterem
Published: December 2024

Hava kirliliğine neden olan parametrelerin konsantrasyonlarında meydana gelen değişimlerin izlenmesi, hava kalitesi yönetimi ve sürdürülebilir mekânsal planlama süreçlerinin bir parçasıdır. Bu çalışmada 2023 şubat depremleri sonrasında yapısal, sosyolojik, ekonomik boyutlarıyla ciddi bir afet yaşayan ve farklı kademelerde iyileşme-iyileştirme eylemleri planlanan ve uygulanan afet bölgesinde hava kirliliği için önemli parametrelerden biri olan NO2 troposferik yoğunluğunun, Sentinel 5P tabanlı izlenmesi ve mekânsal zamansal değişim trendlerinin belirlenmesi hedeflenmiştir. Kış sezonunda fosil yakıt kullanımında artış ve alçalıcı hava hareketleri nedeniyle maksimum değerlere ulaştığı, yaz sezonunda ise İskenderun ve Pazarcık gibi konumlar dışında azaldığı görülmektedir. Yaz sezonu azalma eğilimi Harran ovası gibi tarımsal alanlarda muhtemel anız yakılması ile ilişkili artış eğilimindedir. 2018 ve 2024 yılları arasında aylık ortalama NO2 değerleri için sıcak ve soğuk noktalar mekânsal-zamansal gelişen sıcak nokta analizi ile tespit edilmiştir. Sıcak nokta alanlarının arazi kullanım ve ilçe ölçeğinde gelişmişlik düzeyleri ile ilişkisi irdelenmiştir. Çalışma alanında yer alan nüfus değerleri 350000 üzerinde, birinci ve ikinci kademe gelişmişlik düzeyinde aynı zamanda yapılaşma yoğunluğu fazla olan yerleşim birimleri daimî sıcak nokta veya yoğunlaşan sıcak nokta sınıfındadırlar. Yoğun ulaşım kavşakları, açık maden işletmelerinin olduğu bazı konumların arazi kullanım ile ilişkili olarak salınımlı veya nadiren sıcak nokta sınıfına katıldıkları belirlenmiştir.
Effects of Dietary Mannan Oligosaccharide and Fructo Oligosaccharide Combinations on the Culture Performance of Red Swamp Crayfish
Authors: Dinçer Serhat , Genç Ercüment
Published: December 2024

This research explored the impact of dietary prebiotics on the growth performance of red swamp crayfish over two distinct 90-day trials (each with 3 replicates). In the first trial (initial weight: 0.085 g, 7 experimental groups), mannan-oligosaccharide (M0, M1, M2, M3) and fructo-oligosaccharide (F0, F1, F2, F3) were added at concentrations of 0, 1, 2, and 3 g kg⁻¹. The highest weight gain (WG) and specific growth rates (SGR) were recorded in the M3 group (WG: 8.05 g, SGR: 5.07) and F3 group (WG: 8.00 g, SGR: 5.06). Similarly, the M3 and F3 groups showed the most favorable feed conversion ratios (FCR) and survival rates (SR). In the second trial (initial weight: 0.087 g, 10 experimental groups), the combined use of MOS and FOS (M3+F3) delivered the best performance (WG: 8.82 g, SGR: 5.12, FCR: 1.29, SR: 93%), compared to the M1+F1 group (WG: 6.94 g, SGR: 4.86, FCR: 1.64, SR: 82%). While hepatopancreas tissues remained normal in all groups, the probiotic-supplemented groups exhibited significantly higher crude protein and lower fat content, total hemocyte counts, and intestinal bacteria counts compared to the control group (p<0.05). A combination of 3 g kg⁻¹ MOS and FOS is recommended to enhance crayfish farming productivity.
Sır Baraj Gölü’nün (Kahramanmaraş) Zooplankton Faunası ve Mevsimsel Değişimi
Authors: Bekleyen Aysel , Küçükyılmaz Mehmet , Gün Dr. Abdulselam , Gündüz Fatih , Bülbül Orhan
Published: December 2024

Bu çalışmada; Kahramanmaraş ili Ceyhan Nehri üzerinde yer alan Sır Baraj Gölü’nün zooplankton tür kompozisyonu ve çeşitliliğinin mevsimsel dağılışı, 2021 yılı boyunca 6 istasyonda araştırılmıştır. Çalışma süresince; Rotifera’dan 39, Cladocera’dan 12, Copepoda’dan 8 ve Amphipoda’dan 1 tür olmak üzere toplam 60 takson tespit edilmiştir. Bunlar arasında rotifer Lecane sympoda, Türkiye zooplankton faunası için yeni kayıttır. Sır Baraj Gölü’nde zooplanktonun en yüksek tür sayısı sonbahar mevsiminde (39 tür), en düşük sayı ise 24 tür ile kış aylarında tespit edilmiştir. İlk üç örnekleme istasyonunun tür zenginliği, 4., 5. ve 6. istasyonların zenginliğinden daha yüksek bulunmuştur.
Como os consumidores brasileiros tomam a decisão de compra de um produto PLANT-BASED MEAT?
Authors: Massaki Stéphanie , Tozatto Aline Marcelli , Ramos Simone Cristina , Reis Germano Glufke
Published: December 2024

The consumption of animal products has significant negative effects on the environment and on human health. As a result, a reduction in meat consumption is necessary. The transition to plant-based meat alternatives (PBMA) is one of the potential solutions to environmental and health issues that can ensure sustainable consumption and production (SDG 12). The present study identified and analyzed the motivation factors for reducing or eliminating animal protein from consumers' diets, as well as the consumption decision factors for PBMA products through a semi-structured questionnaire and semi-structured interviews. Currently, consumers can choose either exclusively plant-based brands or plant-based line brands from the traditional animal protein industry. The PBMA market is expected to grow in the coming years as the awareness, familiarity, and knowledge of the target audience of this study, which encompasses flexitarians, vegetarians, ovolactovegetarians, and vegans, increases. Companies must focus on the factors that have been driving Brazilian consumers' decision making in consuming PBMA if they want to win over their target market. These factors mainly involve price, healthiness, sensory aspects, and the ultraprocessing.