bluuebunny/crossref_metadata_2025 huggingface dataset:
ОБЗОР РАЗРАБОТОК БИОРАЗЛАГАЕМЫХ УПАКОВОЧНЫХ МАТЕРИАЛОВ ДЛЯ ПИЩЕВОЙ ПРОМЫШЛЕННОСТИ
Authors: Бурак Леонид Чеславович
Published: April 2023

Аннотация. Повышение заинтересованности потребителей в качественных и безопасных продуктах питания способствует развитию инноваций в области упаковочных материалов.  Целью работы является обзор последних разработок в области биоразлагаемой активной и интеллектуальной упаковки для пищевых продуктов, анализ  существующих проблем и ограничений в применении.В обзор включены статьи, опубликованные на английском и русском языках за период 2010–2022 гг. Для поиска были использованы базы данных Scopus, Web of Science, Elsevier, Elibrary. Проведенный обзор показал, что при разработке активных биоразлагаемых упаковок, для продуктов питания широкое применение находят эфирные масла и растительные экстракты. Ключевая роль принадлежит полифенолам и особенно антоцианам, которые показывают все происходящие изменения качественных характеристик продуктов питания и увеличивают при этом их срок хранения.  «Умная», биоразлагаемая упаковка является новой и перспективной областью научных исследований, которой за последние годы уделяется важное значение. С этой целью необходимо проводить дальнейшие исследования и разработки, направленные на улучшение качества биоразлагаемых видов упаковки, более полное высвобождение биологически активных соединений, снижение влияния pH в интеллектуальной упаковке, а также сохранении   целостности пленки в интеллектуальной упаковке.
ФИЗИЧЕСКИЕ МЕТОДЫ ИССЛЕДОВАНИЯ В ОБЪЕКТИВНОЙ ОЦЕНКЕ ВНЕШНЕГО ВИДА НАПИТКОВ ИЗ РАСТИТЕЛЬНОГО СЫРЬЯ
Authors: Школьникова Марина Николаевна Школьникова Марина Николаевна , Рожнов Евгений Дмитриевич
Published: April 2023

Цвет и прозрачность напитков являются важнейшими сенсорными атрибутами, способными оказывать психоэмоциональное и физиологическое воздействие на потребителя. Напитки из плодового сырья на этапе реализации подвержены опалесценции, помутнениям и осадкам, обусловленным составом плодов и непрекращающимся взаимодействием его компонентов в напитках. Цель работы состояла в исследовании внешнего вида различных групп напитков из плодового сырья физическими методами. Объектами явились напитки: непрозрачных темноокрашенных – коммерческие образцы бальзамов «Золотой век», «Арский камень», «Башкирский», прозрачные светлоокрашенные экспериментальные образцы напитков из плодов Hippophae rhamnoides сорта Чуйская – осветленный сок, сухой облепиховый виноматериал, специальное плодовое вино, внешний вид которых исследован физическими методами: электрофорезом, микроскопией, оптическими. Показано, что применение данных методов подтверждает коллоидную природу непрозрачных бальзамов. При проведении электрофореза отмечено наибольшее образование агломератов у положительного электрода, что свидетельствую о отрицательно заряженной природе образовавшихся коллоидных частиц, основные изменения фиксируются в значениях времени воздействия тока от 8 до 30 мин с силой тока 0,1–0,6А. Пикообразные изменения фиксируют точку помутнения или точку образования макромолекулярных агломератов, микрокопирование образцов показывает образование агломерированных скоплений в виде частиц шаровидной формы размером около 1-2 нм. Для прозрачных светлоокрашенных напитков из плодов Hippophae rhamnoides были определены оптические характеристики при определенных длинах волн, которые послужили основой для расчета показателей интенсивности цвета, оттенка и желтизны. Показано, что в результате хранения напитков из облепихи увеличивается показатель интенсивности цвета и желтизна напитков, а также снижается значение оттенка цвета, что позволяет осуществить разработку методов определения сроков хранения напитков из облепихи. Результаты исследований открывают перспективы внедрения физических методов в практику лабораторий технохимического контроля изготовителей широкого ассортимента напитков из растительного сырья.
СРАВНИТЕЛЬНАЯ ХАРАКТЕРИСТИКА ВОСПАЛИТЕЛЬНОЙ РЕАКЦИИ ПРИ ИМПЛАНТАЦИИ СИНТЕТИЧЕСКИХ ПОЛИМЕР-НЫХ МАТЕРИАЛОВ НА ЭКСПЕРИМЕНТАЛЬНЫХ ЖИВОТНЫХ
Authors: Троев Иван Петрович , Спиридонов Александр Михайлович , Маринова Людмила Германовна Маринова Людмила Германовна , Васильев Андрей Петрович , Данилова  Сахаяна Николаевна Данилова  Сахаяна Николаевна , Кириллина  Мария Петровна Кириллина  Мария Петровна , Сидорова Долгуйаана Николаевна Сидорова Долгуйаана Николаевна , Туисов Алексей Геннадьевич Туисов Алексей Геннадьевич , Тарасова Прасковья Николаевна Тарасова Прасковья Николаевна , Ушканов  Александр Александрович Ушканов  Александр Александрович , Гладкина  Наталья Павловна Гладкина  Наталья Павловна , Сивцев  Денис Витальевич Сивцев  Денис Витальевич
Published: April 2023

В работе приводятся результаты исследования физико-механических, структурных характеристик и биосовместимости полимерных материалов медицинского назначения – сверхвысокомолекулярного полиэтилена и поливинилиденфторида. Изучаемые образцы полимеров были изготовлены методом горячего прессования с последующим их охлаждением под давлением в прессе. Определение прочности при растяжении, относительного удлинения, предела текучести и модуля упругости при растяжении проводилось на универсальной испытательной машине. Морфология поверхности полимерных образцов до и после вживления в лабораторных крыс изучали методом растровой электронной микроскопии. Отмечаются структурные изменения полимеров после вживления в организм, выраженные сглаживанием поверхности поливинилиденфторида и увеличением канавок на поверхности образца сверхвысокомолекулярного полиэтилена. Методом ИК-спектроскопии исследовали влияние вживления материалов на изменения функционально-группового состава. Показано, что у образца сверхвысокомолекулярного полиэтилена обнаружены новые полосы поглощения, относящиеся к колебаниям С–О связи карбонильной и эпоксидной групп. Введение имплантата поливинилиденфторида в подкожный покров животного не приводит к изменению химического состава и образованию новых полос поглощения, что свидетельствует о биоинертности материала. Степень иммуногенности и характер воспалительных процессов в тканях организма вокруг исследуемого материала оценивается путем хирургической имплантации в физиологические пространства лабораторных животных. Проведена сравнительная оценка воспалительной реакции на месте вживления в лабораторных крыс полимерных имплантов, изготовленных из сверхвысокомолекулярного полиэтилена и поливинилиденфторида. Воспалительная реакция оценивалась по гистологическим образцам кожного покрова вокруг имплантов.
МОДЕЛИРОВАНИЕ ПРОЦЕССА ВЫДЕЛЕНИЯ ЦЕЛЕВОГО КОМПОНЕНТА ИЗ ПОРИСТЫХ ЧАСТИЦ ПУТЕМ ИХ ВЗАИМОДЕЙСТВИЯ С ПУЗЫРЬКАМИ ГАЗА
Authors: Авраменко Валерия Витальевна , Мошинский Александр Иванович , Рубцова Лариса Николаевна , Цыганкова Лада Александровна Цыганкова Лада Александровна
Published: April 2023

Предложена математическая модель извлечения целевого компонента из пористой частицы при помощи интенсивных ударов по частице пузырьками газа. Предполагается дискретное описание процесса, связанное с количеством ударов пузырьков по частице. Получены уравнения, связывающие концентрации экстрагента в частице и межчастичном пространстве после двух последовательных ударов по частице. Для решения сформулированной задачи привлекаются методы линейной алгебры. Точнее находятся собственные числа переходной матрицы, и осуществляется построение диагональной матрицы. Это позволило вычислить предельное состояние системы при очень большом количестве ударов пузырьков о частицу. Среднее значение концентрации целевого компонента определяется при помощи распределения Пуассона. Осуществлен переход к непрерывной по времени модели и получено ее решение. Два подхода, дискретный и непрерывный, приводят к согласованным результатам.
СТРУКТУРА ПОТОКА НЕСУЩЕЙ ФАЗЫ В МУЛЬТИВИХРЕВОМ СЕПАРАТОРЕ ДЛЯ УЛАВЛИВАНИЯ ЧАСТИЦ ИЗ ПРИРОДНОГО ГАЗА
Authors: Уткин Максим Олегович , Харьков Виталий Викторович , Бадретдинова Гузель Рамилевна , Дмитриев Андрей Владимирович
Published: April 2023

Для использования природного газа непосредственно на площадках по нефтегазодобыче в газовых генераторах требуется его предварительная очистка. Предложена конструкция мультивихревого сепаратора для очистки природного газа от дисперсных частиц. Предлагается установка данного устройства на коллекторе подачи добываемого газа. Особенностью конструкции является цилиндрическая труба с отверстиями, формирующая с корпусом устройства межтрубное пространство, где создается вихревое течение газа. Такая организация движения газа в устройстве способствует процессу сепарации частиц под действием центробежным сил даже при малых скоростях газа. Значение центробежной силы определяется тангенциальной скоростью, которая, в свою очередь, определяется скоростью прохода газа через отверстия. Соотношение расхода потока газа, проходящего через отверстия, к общему расходу является параметром, который сложно предсказать аналитически. Целью работы является численное исследование структуры течения несущей газовой фазы в разработанном устройстве. Были получены зависимости для составляющих скорости газа в мультивихревом сепараторе и соотношение расходов потоков газа в проточной части устройства. Построена безразмерная зависимость профиля скоростей от относительной высоты зоны отверстий на внутренней трубе сепаратора. Определена зависимость для расчета гидравлического сопротивления от входной скорости газа и геометрических параметров устройства. Найдено, что гидравлическое сопротивление устройства не зависит от количества рядов отверстий на внутренней трубе. Полученные зависимости позволят определить траекторию движения дисперсных частиц в межтрубном пространстве разработанного мультивихревого сепаратора при очистке природного газа.
Deciphering Complexity in Pd–Catalyzed Cross-Couplings
Authors: Clarke George , Ledingham Lyndsay , Firth James , Horbaczewskyj Christopher , Bourne Richard , Bray Joshua , Martin Poppy , Campbell Rebecca , Pagett Alex , MacQuarrie Duncan , Slattery John , Lynam Jason , Whitwood Adrian , Milani Jessica , Hart Sam , Wilson Julie , Fairlamb Ian James Stewart
Published: April 2023

Understanding complex reaction systems and networks is critical in chemistry. While synthetic methods for the selective formation of products are highly sought after, oftentimes it is the full signature of a specific reaction, i.e. the complete profile of products/side-products, that informs mechanistic rationale and acceler-ates discovery chemistry. Moreover, understanding the triggers and sensitivities, under different reaction conditions, that can lead to different products assists with enhanced robustness and safety understanding. In this study we report a methodology using high-throughput experimentation methods and multivariate data analysis that can be used to take the full signature of a chemical reaction, to accelerate an understand-ing of the most complex reaction chemistries. To exemplify our approach, we selected a model Pd-catalyzed reaction system which forms many products – the reaction of two molecules of 2-bromo-N-phenylbenzamide, which affords primarily N-phenyl phenanthridinone. The reaction is a standout bench-mark model for gaining insight on a plethora of side-products. Principal component analysis, correspond-ence analysis and heatmaps with hierarchical clustering have allowed us to examine the factors contrib-uting to the variance in product distributions and show associations between solvents and reaction prod-ucts. Using robust data from experiments performed with eight solvents for four different reaction times at five different temperatures, we have been able to correlate side-products to the major dominant N-phenyl phenanthridinone product, and the post-chemical modification of other side products. Complementary stoichiometric organopalladium studies allowed examination of the Pd precatalyst activation pathway, gaining insight into likely Pd reaction intermediates, particularly an oxidative addition intermediate and downstream PdII intermediates. Automated reaction screening and advanced data analysis tools are transforming the way we examine cata-lytic and synthetic processes. Our study offers a unique and complementary approach to revealing im-portant reaction data on what is arguably one of the most complicated Pd catalyzed transformations known in the chemical literature.
Highly reversible Ti/Sn oxide nanocomposite electrodes for lithium ion batteries obtained by oxidation of MAX Ti3AlxSn1-xC2 phases
Authors: Ostroman Irene , Ferrara Chiara , Stefano Marchionna , Gentile Antonio , Vallana Nicholas , Sheptyakov Denis , Lorenzi Roberto , Ruffo Riccardo
Published: April 2023

Among the materials for the negative electrodes in Li-ion batteries, oxides capable of reacting with Li+ via intercalation/conversion/alloying are extremely interesting due to their high specific capacities but suffer from poor mechanical stability. A new way to design nanocomposites based on the Ti/SnOx system is the partial oxidation of the tin-containing MAX phase of Ti3Al(1-x)SnxO2 composition. Exploiting this strategy, we develop composite electrodes of Sn/TiOx and MAX phase capable of withstanding over 600 cycles in half cells with charge efficiencies higher than 99.5% and specific capacities comparable to those of graphite and higher than lithium titanate (Li4Ti5O12) electrodes. These unprecedented electrochemical performances are also demonstrated at full cell level in the presence of a low cobalt content layered oxide and explained through an accurate chemical, morphological and structural investigation which reveals the intimate contact between the MAX phase and the oxide particles. During the oxidation process, electroactive nanoparticles of TiO2 and Ti(1-y)SnyO2 nucleate on the surface of the unreacted MAX phase which therefore acts both as a conductive agent and as a buffer to preserve the mechanical integrity of the oxide during the lithiation and delithiation cycles.
Shear Thickening Behavior in Injectable Tetra-PEG Hydrogels Cross-Linked via Dynamic Thia-Michael Addition Bonds
Authors: Crowell Anne , FitzSimons Thomas , Anslyn Eric , Schultz Kelly , Rosales Adrianne
Published: April 2023

Injectable poly(ethylene glycol)-based hydrogels were reversibly crosslinked through thia-conjugate addition bonds and demonstrated to shear thicken at low shear rates. In this system, crosslinking bond exchange kinetics and polymer concentration were leveraged to tune hydrogel plateau moduli (about 60 - 650 Pa) and relaxation times (2 - 8 seconds). These properties affected the shear thickening behavior of the hydrogels, including the onset of shear thickening (at a Weissenberg number of 0.2) and the degree of shear thickening (up to 4.5 fold) that was achieved before a flow instability occurred. Despite the shear thickening behavior of the hydrogels at low shear rates, the hydrogels were injectable, with injection forces that increased with a higher polymer concentration and slower bond exchange kinetics. Altogether, these results demonstrate shear thickening in reversibly crosslinked, injectable tetra-PEG hydrogels and show design parameters by which the shear thickening behavior and injection force can be tuned.
Micro-thermography for imaging ice crystal growth and nucleation inside non-transparent materials
Authors: Zalazar Martin , Zypman Fredy , Drori Ran
Published: April 2023

Ice crystal growth and nucleation rate measurements are usually done using visible light micros-copy in liquid and transparent samples. Yet, the understanding of important practical problems depends on monitoring ice growth inside solid materials. For example, how rapid ice growth leads to structural damage of food, or how the final structure of cementitious materials is affect-ed by ice during curing. Imaging crystal growth inside solid materials cannot be done with visi-ble light and is intrinsically more challenging than visible light imaging. Thermography is a technique that uses thermal (Infra-red) cameras to monitor temperature changes in a material, and it has been used to provide qualitative description of ice propagation and nucleation with a low spatial resolution. Here, we describe a method that uses a novel micro-thermography system to image ice nucleation, growth and melting inside non-transparent samples. This method relies on two major components: a cold stage with accurate temperature control (±0.001 ºC) and a thermal camera with high spatial and temperature resolution. Our experiments include imaging of ice formation and growth in pure water first, and inside plant leaves used as a model for a non-transparent material. Ice growth rate of 2.2 mm/s was measured inside a plant leaf at -12 ºC and ice nucleation in single plant cells was observed as a hot spot having a diameter of 160 µm. The results presented here provide experimental proof that high-quality imaging of ice growth is achievable, thus paving the way to quantitative measurements of ice growth kinetics and ice nu-cleation in solid materials.
The Materials Experiment Knowledge Graph
Authors: Statt Michael , Rohr Brian , Guevarra Dan , Breeden Ja'Nya , Suram Santosh , Gregoire John
Published: April 2023

Materials knowledge is inherently hierarchical. While high-level descriptors such as composition and structure are valuable for contextualizing materials data, the data must ultimately be considered in the context of its low-level acquisition details. Graph databases offer an opportunity to represent hierarchical relationships among data, organizing semantic relationships into a knowledge graph. Herein, we establish a knowledge graph of materials experiments whose construction encodes the complete provenance of each material sample and its associated experimental data and metadata. Additional relationships among materials and experiments further encode knowledge and facilitate data exploration. We illustrate the Materials Experiment Knowledge Graph (MEKG) using several use cases, demonstrating the value of modern graph databases for the enterprise of data-driven materials science.
Engineering Phosphinate-Containing Rhodamines for Turn-On Photoacoustic Imaging Applications
Authors: Brøndsted Frederik , Fang Yuan , Zhou Xinqi , Stains Cliff
Published: April 2023

Photoacoustic imaging (PAI) is an emerging imaging technique with applications in preclinical and point-of-care settings. PAI is a light-in, sound-out technique which uses pulsed laser excitation with near-infrared (NIR) light to elicit local temperature increases through non-radiative relaxation events, ultimately leading to the production of ultrasound waves. The classical xanthene dye scaffold has found numerous applications in fluorescence imaging, however, xanthenes are rarely utilized for PAI since they do not typically display NIR absorbance. Herein, we report the ability of Nebraska Red (NR) dyes to produce photoacoustic (PA) signal and provide a rational design approach to reduce the hydrolysis rate of ester containing dyes. By converting a relatively hydrolytically labile phosphinate ester to a more stable thiophosphinate ester, we were able to reduce the rate of ester hydrolysis 3.6-fold within a new dye, termed SNR700. Leveraging the stabilized NIR absorbance of this dye, we were able to construct the first rhodamine-based, turn-on PAI imaging probe for hypochlorous acid (HOCl) that is compatible with commercial PA instrumentation. This probe, termed SNR700-HOCl, has a limit of detection of 500 nM for HOCl and is capable of producing contrast up to 2.9 cm deep in tissues using PAI. This work provides a new set of rhodamine-based PAI agents as well as a rational design approach to stabilize esterified versions of NR dyes with desirable properties for PAI. In the long term, the reagents described herein could be utilized to enable non-invasive imaging of HOCl in disease-relevant model systems.
Targeted Discovery of Cryptic Enediyne Natural Products via FRET-coupled High-Throughput Elicitor Screening
Authors: Han Esther , Lee Seoung Rak , Townsend Craig , Seyedsayamdost Mohammad
Published: April 2023

Enediyne antibiotics are a striking family of DNA-cleaving natural products with high degrees of cytotoxicity and structural complexity. Microbial genome sequences that have recently accumulated point to an untapped trove of ‘cryptic’ enediynes. Most of the cognate biosynthetic gene clusters (BGCs) are sparingly expressed under standard growth conditions, making it difficult to characterize their products. Herein, we report a fluorescence-based DNA cleavage assay coupled to high-throughput elicitor screening for the rapid, targeted discovery of cryptic enediyne metabolites. We applied the approach to Streptomyces clavuligerus, which harbors two such BGCs with unknown products, identified steroids as effective elicitors, and characterized ten cryptic enediyne-derived natural products, termed clavulynes A-J with unusual carbonate and terminal olefin functionalities. Our results contribute to the growing repertoire of enediynes and provide a blueprint for identifying additional ones in the future
Aktívna a pasívna bezpečnosť: vozidlá
Authors: Vertaľ Peter
Published: April 2023

Dopravné nehody vozidiel sú veľmi častým javom, s ktorým sa bežne stretávame v premávke. Vďaka implementácii moderných prístupov v konštrukcii vozidiel je dlhodobý trend poklesu dopravných nehôd. S nástupom automatizovanej, robotizovanej alebo autonómnej prepravy osôb sa stále sprísňuje legislatívne krytie posádky vozidla a zvyšuje sa bezpečnosť vozidiel. Prvky aktívnej bezpečnosti preberajú do značnej miery kontrolu nad bezpečnosťou premávky a predchádzajú tak možným nehodám. Prvky pasívnej bezpečnosti dosiahli v poslednej dekáde technologický vrchol v ochrane posádky po nehode a zabezpečili tak bezpečný vnútorný priestor pre posádku vozila. Problematika aktívnej a pasívnej bezpečnosti vozidiel je často diskutovanou témou v oblasti prevencie dopravných nehôd a následkov spôsobených dopravnou nehodou. Vývoj v oblasti aktívnej bezpečnosti si kladie za cieľ minimalizovať zrážku vozidiel a predísť tak zraneniam, prípadne smrti pri dopravnej nehode tým, že k zrážke nedôjde. Na rozdiel od aktívnej bezpečnosti sa pasívna bezpečnosť vozidiel orientuje na to, aby v prípade, ak už dôjde ku kolízii vozidiel, boli zranenia posádky čo najmenšie. Publikácia si kladie za cieľ v čo najširšej miere a v danom rozsahu opísať testovacie procedúry a hodnotenie testovacích procedúr vozidiel. Časť publikácie sa venuje opisu hardvérových riešení vozidiel a základných fyzikálnych princípov daných senzorov. Tieto senzory prispievajú k zabráneniu dopravnej nehode alebo minimalizovaniu zranenia. Výber z komplexných testovacích procedúr, ktoré slúžia na overovanie výkonnostných charakteristík, poukazuje na zložitosť pri vývoji nových vozidiel, aby naplnili technické predpoklady noriem. Na základe týchto noriem je aj zrejmé, do akej miery je v súčasnosti ovplyvnený dizajn vozidiel.
Water facilities of Ternopil: hydrography, ecological condition and water supply
Authors: Tsaryk L. P. , Kuzyk I. R. , Yankovska L. V.
Published: April 2023

The most sensitive to anthropogenic pressure in the city are water resources: surface and groundwater, water sources, etc. Therefore, the analysis of hydrographic features and ecological status of water bodies of the city of Ternopil is an urgent and important scientific and practical task.

Purpose. Analysis of hydrographic features and ecological condition of water bodies of the Ternopil city, coverage of problems of pollution of the reservoir, quality of water in the Seret River and the main water intakes of the city

Methods. Generalization and systematization, descriptive, SWOT-analysis, cartographic, geoinformation, geochemical assessment of the ecological status of water bodies of the city.

Results. Generalization and systematization of data on the hydrographic network of the Ternopil city, allows us to state the fact that the main water bodies of the city is the Seret River – 242 km long (within the city 1.8 km) and the basin area 3900 km2; reservoir – an area of 300 hectares, nameless right tributary and canalized left tributary of the Seret River – the Rudka. The ecological condition of the Seret River within the city of Ternopil can be assessed as unsatisfactory. The main geoecological problems of the river are construction within the the coastal protection zone, water pollution by solid waste, exceeding the maximum allowable concentrations of suspended solids, sulfates, chlorides, nitrates and petroleum products. Environmental problems of the Ternopil reservoir are water pollution by chemical compounds of ammonium nitrogen, petroleum products, suspended solids and total iron; high siltation and pollution of the bottom sediments of the reservoir with heavy metals and mobile forms of biogenic elements. Water supply in the Ternopi cityl is carried out from two water intakes - Biletsky and Verkhnyo-Ivachivsky. Verkhno-Ivachivsky water intake is located at a distance of 3 km from the city landfill in the village of Malashivtsi. In the last few years, the process of drilling and using private artesian wells with a depth of more than 50 m has become widespread in the city. According to the results of the analysis, installed compliance with sanitary requirements of water samples in these wells, pH in all samples within normal limits (6,5-8,5).

Conclusions. Current trends in climate change and the growth of anthropogenic pressure on water bodies, increases the risks of degradation and changes in some components of the hydrographic network of the city. In Ternopil, it is necessary to modernize the centralized water supply system, reconstruct rainwater collectors and strengthen control over unauthorized discharges into surface water bodies. It is also worth designing another water intake for the city in environmentally secure conditions.
Impact from tourism on the economy during the pandemic time
Authors: Kovalska L. V. , Tkachenko T. I.
Published: April 2023

Purpose. Determination of the impact from tourism on the economic, social and natural environment, as well as the role of the tourism industry on the world economy, Ukrainin economics, in particular, within of the Ivano-Frankivsk region.

Methods. Statistical, methods of analysis, synthesis, graphic and logical generalization methods.

Results. We compared the GDP in terms of the world and the national economics both in percentage and quantitative (conditional units) indicators. To analyze the role of the tourism industry in the world and UA economics, the quantitative indicators for tourist expenses and the income of the tourist business are given. The reason was identified and the changes in the numbers of employees, involved in tourism during 2019-2020 are presented. The main donor countries and recipient countries of tourists were highlighted. The tourist market in the Ivano-Frankivsk region was analysed as of September 1, 2020. The market of tourist services in the world during the Covid-19 pandemic has undergone significant transformations, which were noted both in the reduction of job numbers in the tourism business and in the reductions of the GDP indicator, profit in tourism and expenses by tourism service consumers. The demand on the tourist market was analyzed using the example of the main tourist magnet – the Bukovel resort – Ivano-Frankivsk region. It has been established that the development of tourism in Ivano-Frankivsk region is facilitated by grant programs, namely, the Program for supporting the initiative of local Carpathian communities

Concluions. The national tourist market directed its activities to meet the needs of domestic tourists. The Bukovel resort remaines the main tourist magnet in Ivano-Frankivsk region. Further development of the tourism business, in particular, within Ukraine, will depend on state investments and grant programs, both national and international ones.
El Surgimiento del trabajo social en Colombia: Antecedentes y emergencia de la profesión
Authors: Guevara Peña Nora Liliana , Beltrán Camargo René Mauricio
Published: April 2023

Reconocer la historia del Trabajo Social desde una perspectiva crítica, implica indagar por la complejidad que trae consigo el surgimiento de una profesión; por esto, comprender la génesis de esta, exige no solo hacer referencia a hechos y personas concretas, contempla también investigar las condiciones políticas y económicas del contexto en el que nace. En este capítulo se mencionan las condiciones que generaron el inicio de la profesión a la luz del desarrollo capitalista en Colombia, las reformar liberales y políticas conservadoras en la educación de la primera mitad del siglo XX y su directa relación con la apertura de las primeras escuelas de servicio social en Bogotá, Bolívar, Antioquia y Valle. A su vez, desde una mirada histórico-crítica, se analizan los hechos reseñados con el fin de superar miradas endogenistas que se mantienen en el momento de justificar los fundamentos del Trabajo Social.
El movimiento de la reconceptualización del Trabajo Social en Colombia
Authors: Quintero Londoño Sergio , Ramírez Duarte Diana , López Giraldo Carolina , Botero Delgado Sandra Tatiana , Sánchez Aramburo Natalia , Castaño Orozco Cristian Sebastián , Montoya Cuellar Laura Vanessa
Published: April 2023

El movimiento de reconceptualización en Colombia parte de cambios profundos de las ciencias sociales impulsados, a su vez, por cambios de modelos de desarrollo en el continente y también por el auge de procesos revolucionarios que ponen en cuestión cómo estas ciencias venían interpretando el mundo. En este proceso de renovación profesional se inscribe la reconceptualización. En este capítulo se presenta, en un primer momento, las condiciones sociohistóricas que impulsaron este movimiento, posteriormente, se analiza la influencia de la reconceptualización en diferentes escuelas de Trabajo Social, así como la crisis de este en nuestro país.
Mechanical Properties of Composites Combination of Areca Fronds with Epoxy Resin
Authors: Joni Joni , Tambing Enos
Published: April 2023

Technological advances in material aspects are always increasing, and one of the applications of natural fibers as a matrix in composite materials has begun to be widely used. Composite materials have mechanical properties that are sturdy, corrosion resistant, and concise, and can be used as a substitute for metal materials. Areca palm fronds are part of the areca palm tree which are widely used as storage media because they are durable and weather resistant. The aim of this study was to determine the tensile strength of areca nut composites without alkali treatment combined with epoxy. Tensile test based on ASTM D3039 test standard. The test results showed a maximum tensile strength of 4839886.67 N/m2 or 4.84 MPa, and a modulus of elasticity of 114148270.5 N/m2 or 114.15 MPa. According to the JIS A 5905 standard, it meets the specified requirements, namely elastic strength of 32 MPa and tensile strength of 0.4 MPa.
Evaluation of Fluid Flow Velocity Variations on the Plate Heat Exchanger Performance
Authors: Syahputra Andika , Asnawi Asnawi , Nayan Ahmad , Alchalil Alchalil , Islami Nurul
Published: April 2023

Heat exchanger expected to high effectiveness of heat transfer. Type of plate heat exchanger was more efficient compare to another heat exchangers in industrial applications with pressure less than 30 bar. The increased velocity of cold fluid flow has an impact to increase the performance of heat exchanger by  heat transfer rate (Q), heat transfer coefficient (U), and the effectiveness of heat exchanger (ε). The increased velocity of cold fluid flow also incresing the heat transfer rate. The study carried out by variation of the cold fluid velocity at 0.03 m/s, 0.037 m/s, 0.045 m/s, 0.051 m/s and 0.059 m/s. Inlet hot fluid temperature (Th,i) at 45°C and cold fluid temperature (Tc,i) at 27°C constant. The results shows Q value from the original 1570.71 Watt to 1916.16 Watt on the hot side and 1751.89 Watt to 2187.01 Watt on the cold side. The U value from the original 1180.46 W/m2.°C becomes 1408,75 W/m2. °C. The ε value increased from 60.33% to 75.69%. The increasing of  cold fluid velocity directly proportional to the the heat transfer rate (Q) and performance of the plate heat exchanger. This Phenomenon due to the faster circulation of the cold fluid, which causes the cold fluid to quickly return to its initial temperature (Th,i), an than increasing the plate heat exchanger's performance.
THE PRACTICE OF MOTORCYCLE SELLING WITH INDEN SYSTEM
Authors: Alim Fikri , Tarmidzi  , Fuadi Zulvi Romzul Huda
Published: April 2023

The Yamaha Surya Inti Putra Pekalongan dealer is one of the dealers in Pekalongan who sells motorcycles with a pivot system. The pivot system is a purchase order system with a pre-determined price for the specifications in question and usually carried out within a certain period of time. Indent system if in Islamic law can be equated with buying and selling greetings. However, in the motorcycle pivot system that occurs at the Yamaha Surya Inti Putra Pekalongan dealer, the motorcycle is often not in accordance with the agreement promised by the dealer because in general the motorcycle arrives more than the agreed time, when the goods ordered do not match the agreed time. So based on the Ba'i As-Salam theory, it is contrary to one of the legal conditions in buying and selling, where the goods ordered must have clarity when it arrives. Based on these problems, the authors are interested in knowing why there is a delay in the delivery of motorbikes and how to analyze the Ba'i As-Salam theory on the practice of buying and selling motorbikes with a pivot system at the Yamaha Surya Inti Putra dealer in Pekalongan. Based on the results of the author's research, this study found two conclusions, namely the first regarding the factor of delay in motorbike delivery, it was caused by production capacity, unit allocation, and certain specifications. While the second concerns the terms of salam that have not been fulfilled by dealers in the practice of buying and selling salam, namely the promised time for delivery of goods because the pivot system does not provide certainty. The reason for the time delay experienced by the Yamaha Surya Inti Pura Pekalongan dealer is included in the category of reasons allowed by sharia because there was no deliberate factor on the part of the dealer.
A Review of the Muamalah Fiqh of Profit-Sharing Collaboration in the Management of Perhutani Land in Kutorojo Village
Authors: Sasmito Andi , Qomariyah Siti , Lutfiana Izza Sasky
Published: April 2023

Perhutani's land management collaboration is unique because it uses three forms of cooperation in practice. This study aims to: 1) Find and understand the reasons for the practice of profit-sharing cooperation between Perhutani and the community in Kutorojo village using three forms of cooperation, 2) Finding Muamalah fiqh views on the practice of profit-sharing cooperation between Perhutani and the community in Perhutani land management in Kutorojo Village. This research is a type of field research using a conceptual approach technique, the sources used as objects in this research are Perhutani as the land owner and the land management community who have worked together for 5 years for the results of the residents of Kutorojo Village, Kajen District, Pekalongan Regency. The data collection techniques used in this study is the triangulation method: Observation, Interview, and Documentation. The results of the analysis show that: 1) the cooperation for sharing the results of land management owned by Perhutani in Kutorojo Village uses three forms of cooperation because it sees the potential of land owned by Perhutani which is possible to be utilized and increase the results for the parties, as for the three forms of cooperation, namely: Cooperation for land maturation in The first 2 years, Cooperation in planting and caring for pine trees, and cooperation in planting trees under stands or on the sidelines of pine trees. 2) Based on the author's analysis of the three forms of cooperation, if analyzed in the perspective of Fiqh Muamalah, the cooperation is valid, because it has fulfilled the pillars and legal requirements.
Comparative study of deterministic and probabilistic critical slip surfaces applied to slope stability using limit equilibrium methods and the First-Order Reliability Method
Authors: Assis Higor , Nogueira Caio
Published: April 2023

This work presents the validation of the Morgenstern-Price method implemented in the Risk Assessment applied to Slope Stability (RASS) computational program to carry out deterministic and probabilistic analyses of slope stability. Deterministic analyses, based on the factor of safety approach, are performed using limit equilibrium methods. The probabilistic ones, on the other hand, are carried out through the direct coupling of these methods to the First Order Reliability Method (FORM). Initially, two benchmark cases are presented for validation of the computational routine related to the Morgenstern-Price method. Next, two illustrative examples are presented, with the investigation of the critical surfaces defined by deterministic and probabilistic criteria, which correspond to the minimum factor of safety, the maximum probability of failure, and the maximum quantitative risk. In the set of stability analyses, it was verified that both the numerical responses and the geometry of the critical surfaces can vary depending on the choice of the limit equilibrium method and the criterion for identifying the critical surface. The different possibilities presented by the methodology used in this study define not only a critical surface, but a set of critical surfaces that can help in the engineering decision-making process and slope risk management, complementing the widely used purely deterministic analyses in geotechnics.
Türk Dili ve Edebiyatı ders kitabının Avrupa yeterlilikler çerçevesi yetkinliklerinden ‘Kültürel bilinç ve ifade’ açısından incelenmesi
Authors: KAYGUSUZ Bahadır
Published: April 2023

Avrupa Konseyi ve Avrupa Parlamentosu tarafından 2006 yılında Avrupa ülkelerinde yaşayan insanlara kazandırılması gereken beceriler belirlenmiş ve tavsiye kararı olarak yayınlanmıştır. Bu kapsamda belirlenen yeterliliklerden birisi de “Kültürel Bilinç ve İfade” dir. Avrupa Konseyi bu yeterlilikleri belirlerken kişilerin kendilerini gerçekleştirmeleri ve hayatta kalabilmeleri için ihtiyaç duyacakları becerileri kazandırmayı amaçlamıştır. Ülkemiz de Avrupa yeterlilikler çerçevesi programını esas alarak Türkiye yeterlilikler çerçeve programını oluşturmuş, bu program 19 Kasım 2015 tarihli Resmî Gazete’de yayınlanarak yürürlüğe girmiştir. Jeopolitik konumu itibariyle sürekli bir geçiş noktası olan ülkemiz, özellikle son yıllarda yoğun bir göç almaktadır. Bu da beraberinde kültürel etkilenmeyi getirmektedir. Bu durum milli kültürümüzün genç nesillere aktarılmasının önemli olduğunu ortaya koymaktadır. Araştırmada, 2022- 2023 eğitim öğretim yılı içerisinde ortaöğretim kurumlarında okutulan 11. sınıf Türk Dili ve Edebiyatı ders kitabında bulunan metinlerin orta öğretim öğrencilerine milli kültür unsurlarının aktarımı açısından değerlendirilmesi amaçlanmıştır. Bu bağlamda araştırma nitel araştırma yöntemiyle yapılmıştır. Araştırmanın verileri 2022- 2023 eğitim öğretim yılı içerisinde ortaöğretim kurumlarında okutulan 11. sınıf Türk Dili ve Edebiyatı ders kitabında yer alan 9 ünite 40 metin üzerinden doküman analiziyle toplanmıştır. Ders kitabında bulunan metinlerde kültürel farkındalık unsurları; örf, adet, gelenek, görenek ve değerlere ait unsurlar, dini unsurlar, düşünce ve ahlak ile ilgili konular, Türk Dili ve Tarihi konuları, toplumsal yapı ile ilgili unsurlar olmak üzere 5 ana başlık ve alt başlıklar açısından değerlendirilerek sonuçlar ortaya konmuştur. Çalışmanın sonucunda, Türk kültürüne ait unsurların ders kitabı aracılığı ile öğrencilere aktarılabileceği, bu yönüyle ders kitabında kültürel farkındalık oluşturacak metinlere daha fazla yer verilmesi ve öğrencileri bu konuda düşündürecek etkinliklerin hazırlanması gerektiği sonucuna varılmıştır. Araştırmada sunulan verilerin bir farkındalık oluşturacağı düşünülmektedir.
Karahanlı ve Harezm Türkçesi metinlerinde boyut sıfatlarının dağılımı
Authors: KALSIN Şirvan
Published: April 2023

Tüm dillerin söz varlığında sıfatlar önemli bir yere sahiptirler. Sıfatların kullanım sıklıkları ve geçirmiş oldukları değişimler salt dilsel değil dil-kültür değişimi açısından da önemli veriler sunabilir. Bu çalışmada sıfat sınıflamalarında boyut sıfatları içinde değerlendirilen sözcüklerin Karahanlı ve Harezm Türkçesindeki karşılıkları olan ulug, bedük, kiçig, yüksek, keŋ/keŋrü/keŋe, kısga, uzun, kalın, yinçge, yuwka sıfatlarının dönem eserlerindeki sıklıkları ve kurdukları sıfat öbekleri incelenmiştir. Dönem metinlerinden tanıklanan örneklerde, boyut sıfatı olarak değerlendirilen ulug, bedük, kiçig, yüksek, keŋ, tar, kalın, uzun, kısga sözcüklerinin ölçü anlam içeriği taşımasında, Türkiye Türkçesinde olduğu gibi, nitelediği adın anlamsal içeriğinin belirleyici olduğu görülmektedir. Örneğin ulug kadgu, ulug söz, uzun umınç, bedük iş örneklerindeki sıfatlar boyut özelliklerini kaybedip imgesel bir anlam kazanmışken; ulug taş, ulug çanak, uzun ton, bedük sarāy örneklerinde ise düz anlamsal özelliklerini korumuşlardır. Karahanlı Türkçesi metinlerinde boyut sıfatlarının Harezm Türkçesine kıyasla daha fazla imgesel, soyut anlam taşıdığı görülmektedir. Bunda Karahanlı döneminin en hacimli eseri olan Kutadgu Bilig’in manzum bir eser olması etkili olmuş olabilir. Bilindiği üzere manzum formdaki metinlerde metaforlarla kurulan imgesel anlatımlar öne çıkar.
Çanakkale adalarını plato olarak seçen Türk sinema filmlerine folklorik bir bakış
Authors: DOYKUN Samet
Published: April 2023

Bozcaada ve Gökçeada jeopolitik konumları nedeniyle Akdeniz uygarlıklarının hemen hepsinin gözde mekânlarından olarak tarih sahnesinde yer bulmuşlardır. Birbirinden son derece farklı pek çok kültüre ev sahipliği yapan adalar, bu anlamda kültürel olarak da farklı tabakalarla ilgili bilgi sunması bakımından sosyal bilimlerin hemen her dalının ilgisine mazhar olmuşlardır. Süreç içerisinde tarih, coğrafya, arkeoloji, turizm, sosyoloji, mimarlık gibi pek çok sosyal bilim alanında çok çeşitli hacimlerde çalışmaların konu edildiği Çanakkale adaları aynı zamanda son çeyrekte çok sayıda Türk sinema eserine de mekân olmuştur. Adaların mimari, sosyal, coğrafi ve kültürel özellikleri, sinema eserlerinin görsel yönlerini zenginleştirmişlerdir. Bu eserler bir yandan adaları tüm yönleriyle sahnelerinde yansıtmakta, bir yandan da popüler hâle gelmeleriyle birlikte adalar için birer turistik tanıtım aracı da olmaktadırlar. Dolayısıyla Çanakkale adaları ile buraları plato olarak kullanan sinema yapımları arasında birbirini destekleyen simbiyotik bir ilişki ortaya çıkmıştır. Nitekim araştırmada elde edilen verilere göre özellikle 2000’lerden sonra Bozcaada ve Gökçeada’da çekilen filmler, Çanakkale’ye gelen turist sayısını da etkilemiş, sahadaki incelemelerde de adalarda mukim halkın büyük çoğunluğu bu filmlerin ortaya çıkardığı dolaylı reklamlar sayesinde gelen turistlerin ekonomik faaliyetleri de canlandırdığını ifade etmişlerdir. Çalışmada doğrudan doğruya Bozcaada ve Gökçeada’yı mekân olarak seçen yedi Türk filmi, görsel içerik çözümlemesi yöntemi ile incelenerek, bu filmlerin sözel, görsel ve müzikal dokularına yansıyan ada folkloruna matuf örüntülerin temsilleri üzerinde durulmuştur. Çalışmada ayrıca sahadaki kaynak kişilerin çekilen bu filmlere karşı tutumları da değerlendirilmiştir.
Image, support à multiples fonctions, éléments de communication dans les albums de littérature jeunesse: exemples du Lycée Tevfik Fikret en Turquie
Authors: TOKALAK BALTACI Filiz
Published: April 2023

Au-delà de la pluridisciplinarité, notre travail représente un aspect interdisiplinaire. En effet, il est passionnant en ce sens qu’il nous donne l’occasion de réinvestir dans d’autres classes de l’apprentissage du français et du français langue étrangère. Dans notre recherche, grâce au sujet de travail, on s’ouvre dans plusieurs domaines à la fois comme la didactique des langues, la littérature jeunesse, la linguistique et la sémiologie. Dans ce travail, nous nous concentrons d’abord sur “l’image”, notre point de départ. Nous enchaînons ensuite avec la relation texte-image, l’album de littérature jeunesse et ses bientfaits, la sémiologie et la place de l’image, l’interprétation des images chez l’enfant. Finalement, nous analysons des documents de différents types d’albums travaillés en classe dans l’apprentissage de la langue française basé sur les images et les symboles réalisés dans le lycée Tevfik Fikret en Turquie. Notre but est de démontrer l’importance, la force et l’impact de l’image, un sujet analysé depuis l’Antiquité, utilisée comme support à multifonction dans l’enseignement prodigué aux jeunes enfants, de faire découvrir la fonction de l’image dans des livres et des albums. On souligne le fait que l’album est un support à multifonction, de littérature jeunesse et d’enseignement des langues qui rejoint aussi le monde de la traduction et de l’interprétation. En partant de l’image, on relie les notions comme le symbole, le code, l’interprétation des codes, des symboles et des images. Notre travail invite les enseignants, lecteurs cibles de cette étude, à se servir de beaucoup plus d’images et d’ albums de toutes sortes dans le cadre de l’enseignement des langues et dans les classes du département de traduction et d’interprétation à l’université.
Dispersal of time and trauma in postmodern novel: Slaughterhouse-Five
Authors: KALECİK Samet
Published: April 2023

Wars cause trauma and disruption of temporal sequencing, leading to fragmentation of memory in survivors. This fragmentation leads to negative changes in the victims' posttraumatic relationships and character traits. Kurt Vonnegut’s Slaughterhouse-Five (1969) is a novel about war trauma in which WWII is satirized with the use of a nonlinear narrative and post-war traumatic self. The novel presents to the reader how an innocent man survives in a drastic war atmosphere by chance and how his life changes after the war in both a playful and critical manner. Although Slaughterhouse-Five broadly delineates the theme of the destructiveness of war, specifically Vonnegut draws attention to the distorted memory of a traumatized young man with an ironic stance. Thereby, presenting the reader an opportunity to delve into a mind in which the compulsory conditions about temporality and liminality are abolished, Vonnegut turns his narrative into a play that reflects both joy and suffering owing to the collapse of sequence in time. Making extensive use of the means of metafiction, the author reveals his war experiences and the hidden sides of WWII. Therefore, this study aims to analyze Vonnegut’s ironic approach to war trauma, distorted perception of time, and their reflection on fiction in a postmodern sense.
Sürgünde Türkoloji-Mefküre Mollova: Biyografik İnceleme
Authors: KARASU Abidin
Published: April 2023

Prof. Dr. Zeynep Zafer ve Doç. Dr. Nuriye Muratova’nın Mefküre Mollova üzerinde biyografik bir çalışma yapmaya sevk eden en önemli hadise 2019'un başlarında, Bulgaristan Bilimler Akademisi'nde yayınlanan kadınlarla ilgili bir ansiklopedi vesilesiyle yapılan bir sohbetin ardından başlar. Zafer ve Muratova, Bulgaristan’daki Müslüman Türk bilim kadınlarından ansiklopedide kaçının olup olmadığını kontrol ederler. İnceleme neticesinde iki Türk isme ulaşılır. Birincisi Prof. Dr. Hayriye Memova (Yenisoy) diğeri ise Bulgar Bilimler Akademisinde yeni işe başlamış genç bir bayandır. Bu tablo karşında Profesör Zafer adeta isyan eder. Yüzlerce bilimsel çalışması olan Mefküre Mollova’nın bu ansiklopedide yer almamasına çok üzülür. Nuriye Muratova bu ismi ilk defa duyar ve çok şaşırır. İnternette üzerinden bir araştırma yapar ve Mollova’nın uluslararası saygın dergilerde yüzden fazla bilimsel çalışmasını görür. Bulgar arşivleri kontrol edilir. Bulgar Bilimler Akademisi arşivlerinde yapılan araştırma neticesinde Mefküre Mollova ismine rastlanmaz. Ansiklopedide yer almamasının sebebi anlaşılmıştır.
Bulgakov, M. A. (2022). Şeytanname. çev. U. Büke. İstanbul: Can
Authors: TUĞ Cemile
Published: April 2023

Mihail Afanasyeviç BULGAKOV’un 1923 yılında yazdığı orijinal adı Дьяволиада (Diyavoliada) İlk kez 1924 yılında Moskova’da Nedra almanağında yayınlanmıştır. Uğur BÜKE çevirisi ile Can Sanat yayınları tarafından yayımlanan Şeytanname, 11 bölüm içermekte olup 63 sayfadır.