bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thermoluminescence response of Ce doped CaTiO3 nanophosphor synthesized by hydrothermal method for gamma dosimetry
Authors: Hussain Taqmeem , Kousar Rahila , Younas Kanwal , Saleem Khurram , Shahzad Aamir , Munir Tariq , Fakhar-e-Alam Muhammad , Mehmood Arsalan , Asif Muhammad , Dahlous Kholood A. , Shibl Mohamed F. , Al-Qahtani Noora H. 
Published: September 2024

Abstract
Nanocrystalline calcium titanate (CaTiO3) doped with cerium ions (0.02 mol%) was synthesized via hydrothermal method and its luminescent properties were studied for gamma dosimetry. For the synthesized samples, the best luminescent response was achieved after annealing at 700 °C for 8 h. The synthesis was confirmed via XRD technique yielding the cyrstallite size of 22 nm for the most intense peak (121). The surface morphology was studied via scanning electron microscopy (SEM) yielding the grain size of 12 µm. The strong IR absorptions appeared at 700 cm−1 and 712 cm−1 attributed to bending mode of vibrations changing angle between Ti–O–Ti for CaTiO3 and CaTiO3:Ce respectively, as confirmed via Fourier-Transform Infrared (FTIR) Spectroscopy. Thermoluminescent (TL) response of undoped and doped samples was studied by Mikrolab RA94 TLD Reader-Analyzer having heating rate 10 °C/s, for absorbed doses 0–20 mGy from 137Cs γ-source having a dose rate 100 mSv/h. The found values at 662 keV for the photon-sensing parameters, i.e., mass attenuation coefficients (μ/ρ), mass-energy attenuation coefficient (μ
en/ρ), effective atomic number for photon interaction (Z
eff,PI) and effective atomic number for total photon energy absorption (Z
eff,PEA) were 0.07030882 cm2/g, 0.0280245 cm2/g, 13.9 and 13.4 respectively. Thus, synthesized nanophosphor has shown excellent thermoluminescent dosimetric response for gamma radiation sensing in the selected dose range.
Synthesis and Physicochemical Properties of ((9H-(4,5-Diazafluoren)-9-ylidene)methyl)arylenes
Authors: ЧЕШКИНА Д.С. , БЕККЕР К.С. , СОНИНА А.А. , КАЗАНЦЕВ М.С. 
Published: September 2024

Представлен синтез ((9H-(4,5-диазафлуорен)-9-илиден)метил)ариленов и изучены их физико-химические характеристики методами циклической вольтамперометрии и оптической спектроскопии. Целевые соединения получены из коммерчески доступных реагентов в три стадии с использованием комбинации реакций кросс-сочетания Сузуки–Мияуры и конденсации. Установлено, что соединения обладают низким квантовым выходом фотолюминесценции в растворе, а 9-(4-([2,2-битиофен]-5-ил)фенилилиден)-9H-4,5-диазафлуорен (DPTT) обладает эффектом усиления люминесценции в агрегированном состоянии. Методом рентгеноструктурного анализа установлена кристаллическая структура DPTT. Монокристаллы данного соединения имеют морфологию вытянутых пластин и обладают фотолюминесценцией с квантовым выходом 5 %.
The synthesis of ((9H-(4,5-diazafluorene)-9-ylidene)methyl)arylenes is presented and their physicochemical characteristics are studied by cyclic voltammetry and optical spectroscopy. The target compounds were synthesised from commercially available reagents in three steps using a combination of Suzuki–Miyaura cross-coupling and condensation reactions. It was found that the compounds had a low photoluminescence quantum yield in solution, and 9-(4-([2,2'-bithiophen]-5-yl)phenylidene)-9H-4,5-diazafluorene demonstrates aggregation-induced luminescence. The crystal structure of 9-(4-([2,2'-bithiophen]-5-yl)phenylidene)-9H-4,5-diazafluorene was solved by X-ray diffraction analysis. The single crystals of this compound have the elongated plate morphology and exhibit photoluminescence quantum yield of 5 %.
GROUND TEMPERATURE AT THE DEPTH OF ZERO ANNUAL AMPLITUDE IN THE AREA OF SUPRAPERMAFROST TALIKS IN CENTRAL YAKUTIA
Authors: ЛЕБЕДЕВА Л.С. , БАИШЕВ Н.Е. , ПАВЛОВА Н.А. , ЕФРЕМОВ В.С. , ОГОНЕРОВ В.В. , ТАРБЕЕВА А.М. 
Published: September 2024

Несмотря на низкие средние годовые температуры воздуха и малое количество атмосферных осадков, в некоторых условиях сплошной криолитозоны Центральной Якутии существуют субаэральные надмерзлотные водоносные талики. В статье приводится анализ сезонной и межгодовой динамики температуры пород в контрастных геокриологических условиях - на участках распространения мерзлоты с поверхности и надмерзлотных субаэральных таликов на ключевом участке Левая Шестаковка, расположенном в 20 км юго-западнее г. Якутска. Кровля многолетней мерзлоты на участке залегает на глубинах от 0.5 до 20 м. Самые высокие температуры пород характерны для площади распространения водоносных надмерзлотных таликов, приуроченных к пологим склонам, которые сложены песчаными отложениями и покрыты редким сосновым лесом. Мощность сезонномерзлого слоя достигает 3 м, а глубина нулевых годовых амплитуд варьирует от 6 до 12 м. Талые породы сохраняются за счет постоянной фильтрации подземных вод в них. Самая низкая температура пород характерна для маревого участка и поймы реки. Глубина сезонного протаивания изменяется от 0.5 до 1.0 м, глубина нулевых годовых амплитуд превышает 15 м. В последние годы отмечено медленное промерзание таликов снизу за счет слабовыраженного охлаждения толщи, подстилающей талые водоносные породы. За пределами развития таликов зафиксированы слабые разнонаправленные изменения температуры пород.
Despite the low mean annual air temperature and low precipitation, subaerial suprapermafrost aquifer taliks are formed in some cases in the continuous permafrost zone of Central Yakutia. The paper presents an analysis of the seasonal and interannual dynamics of ground temperature in contrasting geocryological conditions - in areas of permafrost spread from the surface and in suprapermafrost subaerial taliks - of the key area of Levaya Shestakovka 20 km southwest of Yakutsk. The permafrost table in this area a occurs at depths from 0.5 to 20 m. The highest ground temperatures are typical of the area of aquiferous suprapermafrost taliks confined to gentle slopes composed of sandy sediments and covered with pine woodland. The thickness of the seasonally frozen layer reaches 3 m, and the depth of zero annual amplitudes varies from 6 to 12 m. Thawed deposits are preserved due to the continuous filtration of groundwater in them. The lowest ground temperatures are characteristic of the mire and the river floodplain. The depth of seasonal thawing varies from 0.5 to 1.0 m, and the depth of zero annual amplitudes exceeds 15 m. In recent years, slow freezing of the taliks from below has been noted due to mild cooling of the strata underlying the thawed aquifers. Beyond the area of taliks, weak multidirectional changes in ground temperature have been recorded.
COMPARATIVE ANALYSIS OF AREA DISTRIBUTIONS FOR THERMOKARST LAKES WITHIN DIFFERENT TYPES OF THE SURFACE OF THERMOKARST PLAINS WITH FLUVIAL EROSION
Authors: ВИКТОРОВ А.С. , КАПРАЛОВА В.Н. , ОРЛОВ Т.В. 
Published: September 2024

Проведен сравнительный анализ статистических распределений площадей термокарстовых озер в пределах различных генетических типов поверхностей эрозионно-термокарстовых равнин - участков, расположенных на волнистых междуречьях, и участков пониженных поверхностей, занятых хасыреями (аласами), нередко образующими слившиеся массивы. С использованием количественных критериев и космических снимков на материале восьми участков, находящихся в разных физико-географических условиях (Ямал, Тазовский полуостров, Колымская низменность, долина Пенжины), установлено существование статистически значимых различий распределений площадей термокарстовых озер в пределах разных генетических типов поверхностей. На основе статистического анализа показано, что распределение площадей термокарстовых озер является интегрально-экспоненциальным. Это позволяет сделать вывод, что на каждом из двух типов поверхности в пределах эрозионно-термокарстовых равнин устанавливается динамическое равновесие в процессах возникновения, роста и спуска термокарстовых озер. При существенных различиях наблюдается коррелированность значений параметров распределений площадей термокарстовых озер на основной водораздельной поверхности эрозионно-термокарстовых равнин и площадей вторичных озер в хасыреях.
Thermokarst plains with fluvial erosion include two genetically different types of surface: slightly undulating watersheds and lowered surfaces of khasyreys (drained thermokarst lakes with secondary thermokarst lakes). The research deals with a comparative analysis of statistical distributions of the areas of thermokarst lakes and secondary lakes. Using statistical criteria and remote sensing data for eight key sites in different natural conditions, such as Yamal and Taz peninsulas, the Kolyma Lowland, and the Penzhina River valley, we determined statistically significant differences in the area distributions of thermokarst lakes within different genetic types of the surface. Statistical analysis shows that the areas of thermokarst lakes correspond to an integral-exponential distribution. This allows us to conclude that a dynamic equilibrium is established within each type of the surface in the course of the initiation, growth, and drainage of thermokarst lakes. Though the parameters of thermokarst lakes differ significantly, we find a correlation between the distribution parameters of lake areas within the main surface of thermokarst plains with fluvial erosion and the surface of khasyreys with secondary lakes.
EROSIONAL PROCESSES IN SMALL TUNDRA CATCHMENTS IN THE NORTH OF YAKUTIA
Authors: ТАРБЕЕВА А.М. , ЕФРЕМОВ В.С. , ЛЕБЕДЕВА Л.С. , ШАМОВ В.В. 
Published: September 2024

Эрозионные процессы играют важную роль в выносе продуктов разрушения мерзлых пород. С целью выявления темпов и механизмов эрозионных процессов в условиях деградации мерзлых пород были типизированы формы флювиального рельефа малых водосборов в предгорьях Хараулахского хребта, охарактеризована их морфология, условия образования и динамика за 2019-2022 гг. Наиболее динамичны формы рельефа, связанные с вытаиванием жильных льдов: термокарстовые ложбины стока, рытвины и эрозионно-термокарстовые овраги. Термоэрозионные овраги, формирующиеся в отложениях без жильных льдов, растут при аномально высоких паводках, а в остальное время их борта медленно оползают под действием снежников. В верховьях малых рек происходит аккумуляция наносов, вынесенных из оврагов и рытвин. Русла рек и ручьев начальных порядков стабильны, что характерно и для других районов криолитозоны. Различия в динамике разных типов эрозионных форм можно объяснить усилением теплового, а не механического воздействия водных потоков на мерзлые отложения, которое наблюдается в условиях повышения температур воздуха при стабильном количестве осадков на севере Якутии.
Erosion plays an important role in removing permafrost degradation products. In order to identify the rates and mechanisms of erosion in degrading permafrost, fluvial landforms in small catchments at the foothills of the Kharaulakh Range were typified, and their morphology, formation conditions, and dynamics for 2019-2022 were characterized. The most dynamic landforms associated with melting ice wedges were thermokarst runoff troughs (water tracks), rills, and thermoerosional gullies. Thermoerosional gullies forming in sediments without wedged ice grow upon very high floods; in the rest of the time, their sides slowly slide down under the action of snowfields. Sediments from gullies and rills are deposited in the upper reaches of small rivers. The channels of small rivers are relatively stable, which is also typical of other permafrost regions. Differences in the dynamics of erosional landforms can be explained by an increase in the thermal rather than mechanical impact of water on frozen deposits, which is observed with the rise in air temperature against the background of relatively stable precipitation in the north of Yakutia.
ANALYTICAL SOLUTION OF THE PROBLEM OF OPERATION OF DEEP SEASONAL COOLING DEVICES TO ASSESS THEIR EFFICIENCY
Authors: АНИКИН Г.В. , ИШКОВ А.А. 
Published: September 2024

Предлагается аналитическое решение задачи функционирования глубинных сезонных охлаждающих устройств в предположении о квазистационарном режиме замораживания грунта испарителем системы. Рассмотрен случай применения предложенного решения для одной из конструктивных конфигураций глубинного сезонного охлаждающего устройства на талых грунтах с разной теплопроводностью при метеорологических условиях г. Салехарда. Получены зависимости радиуса промерзания грунта вокруг трубы испарителя от глубины для разных интервалов времени работы системы. Возможно применение аналитической модели на этапе проектирования для оценки и оптимизации конструкции рассматриваемой системы термостабилизации в тех или иных геокриологических зонах для разных теплофизических характеристик грунтов с учетом агрегатного состояния воды в них.
The article offers an analytical solution to the problem of operation of deep seasonal cooling devices (deep SCD) based on the assumption of quasi-stationary regime of soil freezing by the system evaporator. The case of application of the proposed solution for one of the design configurations of a deep SCD on thawed soils with different thermal conductivity under the weather conditions of Salekhard city is considered. We obtained the values of the radius of soil freezing around the evaporator tube as a function of depth at different time intervals of system operation. The present analytical model can be easily applied at the design stage to evaluate and optimize the design of the applied thermal stabilization system in particular geocryological zones for different thermophysical characteristics of soils, taking into account the aggregate state of water in them.
NEW PSYCHROACTIVE BACTERIA OF THE YAMAL PENINSULA CRYOPEGS
Authors: РЫЖМАНОВА Я.В. , ТРУБИЦИН В.Э. , РИВКИНА Е.М. , СУЗИНА Н.Е. , ПЛОТНИКОВ А.О. , КАТАЕВ В.Я. , МОЛЧАНОВ М.В. , МОЛОЧКОВ Н.В. , ЩЕРБАКОВА В.А. 
Published: September 2024

Приведены новые сведения о видовом разнообразии и метаболическом потенциале малоизученных микробных сообществ криопэгов полуострова Ямал. Подсчет общей численности микроорганизмов, населяющих криопэги, показал достаточно высокую плотность, составившую 106-108 кл/мл. При этом сульфатвосстанавливающие бактерии были обнаружены только в двух из трех криопэгах в численности, не превышающей 103 кл/мл. Из криопэгов впервые выделены представители бактериальных родов Acetobaсterium (штаммы K1/0, K1/6 =ВКМ B-3638, K1/7, K1/8), Labilibaculum (K2SТ, =ВКМ B-3650Т) и Trichococcus (K1TrТ, =ВКМ B-3651Т). Все изоляты являлись психроактивными и были способны расти при температуре 6 °С.
New data on the species diversity and metabolic potential of insufficiently studied microbial communities in cryopegs of the Yamal Peninsula are presented. The total number of microorganisms inhabiting cryopegs is high and reaches 106-108 cells/mL. At the same time, sulfate-reducing bacteria have only been found in two out of three studied cryopegs in numbers not exceeding 103 cells/mL. Representatives of the bacterial genera Acetobacterium (strains K1/0, K1/6 =VKM B-3638, K1/7, K1/8), Labilibaculum (K2ST, =VKM B-3650T), and Trichococcus (K1TrT, =VKM B-3651Т) have been isolated from cryopegs for the first time. All isolates are psychroactive and are able to grow at 6°C.
Dissolved Hydrogen Concentration in the Psychrophilic Anaerobic Digestion of Food Leftovers and Its Correlation to VFA/ TIC Ratio
Authors: Platosova Daniela , Rusin Jiri , Svoboda Radek , Smutna Katerina 
Published: September 2024

This paper evaluates the usefulness of measuring the concentration of dissolved hydrogen in an anaerobic fermenter for maintaining the process stability. A laboratory test of two-stage psychrophilic anaerobic digestion of food leftovers from a university canteen was carried out in a vertical reactor with a total working volume of 0.255 m3 without stirring. In the course of the experiment lasting 1050 days, with an average organic loading of 15.45 kgVS m-3 d-1 for the 1st stage and 0.657 kgVS m-3 d-1 for the 2nd stage, a specific biogas production of 0.123 Nm3 per kilogram of substrate and 0.448 Nm3 per kilogram of total solids and 0.480 Nm3 per kilogram of volatile solids, respectively, was achieved. The average methane content in biogas was 55.9 % vol. Slightly higher gas productions were measured in the batch BMP test. The concentration of hydrogen in the mixed biogas from both reactor stages occasionally exceeded 1000 ppm and averaged 134 ppm, the concentration of dissolved hydrogen measured by AMT MS 08 sensor in the overloaded second stage was often 0.10-0.23 mg dm-3 and correlated with the total concentration of lower fatty acids and with the VFA/ TIC parameter. The dissolved hydrogen concentration from AMT instrument was not found to be a reliable timely indicator of overload or process stability.
Intervening Role of Brand Image in Purchasing Decisions: Path Analysis
Authors: Utami Neni , Sujianto Agus Eko , Asiyah Binti Nur , Jamaludin Husna Binti 
Published: September 2024

<p><em>This study aims to analyze the influence of digital marketing and e-wom on purchasing decisions for halal cosmetic products on gen z in Blitar city, as well as the intervening influence of brand image between digital marketing and e-wom on purchasing decisions for halal cosmetic products on gen z. The novelty of this research lies in the research location, namely in Blitar city. Data was collected by distributing questionnaires measured on a 5-point Likert scale to 250 Gen Z in Blitar City who purchased halal cosmetic products at least twice in the last 6 months. The collected research data were subjected to research instrument tests, classical assumption tests, path tests, and hypothesis tests. The results showed that digital marketing and brand image have an effect on purchasing decisions, e-wom has no impact on buying decisions, and brand image can intervene in the influence between digital marketing and e-wom on purchasing decisions. The results of this study contribute as evaluation material for companies to pay more attention to e-wom by improving sales services, collaborating with content creators in reviewing products, building online communities, and holding events that can provoke consumers to share their best experiences in using products to increase the number and quality of reviews related to halal cosmetics both on social media and shopping platforms so that potential consumers feel they are taking the right steps by making a purchase. </em></p><p><em> </em></p>
Doleschallia bisaltide (Lepidoptera: Nymphalidae) profile and oviposition preference on Graptophyllum pictum (L.) Griff.
Authors: Lestari Peni , Mardiningsih Tri Lestari , Sartiami Dewi , Rohaeni Wage Ratna , Rohimatun Rohimatun , Obura Bruce Ochieng , Manzila Ifa 
Published: September 2024

Abstract

Doleschallia bisaltide Cramer (Lepidoptera: Nymphalidae) is a main pest on Graptophyllum pictum (L.) Griff. in the Lepidopteran order, the first-instar larval performance is determined by adult oviposition. An adult oviposition preference can be used to determine the resistance level of some G. pictum accessions in early-stage breeding programs. The study aimed to identify the profile of D. bisaltide and its oviposition preferences on G. pictum accessions. The herbivore-host interaction was utilized as a guide to select cultivars resistant to D. bisaltide and identify repellent characteristics for the insect. The research was conducted at the Indonesian Spice and Medicinal Crops Research Institute (ISMCRI), using nested Randomized Complete Block Design (RCBD). G. pictum accessions nested on flight periods. The study revealed that insect mating occurred from dusk to night, while oviposition occurred the following morning. The adult mating was dominantly in the humid area, suggesting a potential population outbreak during the rainy season. The highest oviposition preference was observed for accessions with higher anthocyanin-to-chlorophyll content. In contrast, the lowest oviposition was recorded for accession 12 content of higher chlorophyll-to-anthocyanins. D. bisaltide oviposition preferences were influenced by leaf pigment, saponins, and the C/N ratio. Phytochemicals such as flavonoids and glycosides in G.pictum leaves acted as oviposition stimulants for specialists such as D. bisaltide.
Spatial and temporal distribution characteristics and evolution of traditional villages: the Qi River Basin, China
Authors: Zhang YunXing , Han NaNa , Zhang Baien , Lu ChenChen , Yang MeiYu , Zhai FeiFei , Li HaiDong 
Published: September 2024

Abstract

The Qi River Basin, renowned as one of the cradles of Chinese civilization and it's also a river that flows in the Psalms, boasts a rich cultural heritage. Traditional villages within this region play a pivotal role in preserving its cultural legacy and are of great importance for sustainable development. This research focuses on investigating the temporal and spatial transformations of traditional villages in the Qi River Basin. By conducting a thorough literature review, consulting local chronicles, and undertaking field surveys, historical information on the ancient Qi River and its significant tributaries was collected and validated using ArcGIS 10.8. Spatial analysis techniques, such as nearest neighbor index, kernel density estimation, standard deviation ellipse, geographic concentration index, and buffer analysis, were applied to analyze the spatiotemporal dynamics of traditional villages. Through a detailed exploration of various factors influencing village evolution, especially the role of rivers in driving changes, several key findings emerged: (1) Traditional villages in the Qi River Basin exhibit a clustered distribution pattern; (2) The shifting centroid of traditional villages over six historical periods demonstrates a directional trend from southwest to northeast, with contemporary villages facing the risk of disappearance; (3) Factors like proximity to water, elevation, slope, and socio-cultural elements are intricately linked to traditional villages, with water proximity emerging as a primary influencer. This study enhances our comprehension of the interplay between traditional village development and river basin, providing valuable theoretical insights for promoting the sustainable development of traditional villages in China.
HKNI: Fusing Neighbor Information for Hyper-Relational Knowledge Graph Completion
Authors: Liu Shuang , liu daqing , Chen Peng , Xu Liangyang , Kolmanič Simon 
Published: September 2024

Abstract

The hyper-relation knowledge graph constructed by hyper-relation facts can effectively express most of the information in the real world. Similar to traditional knowledge graphs, it also has more or less missing information, which makes link prediction on the hyper-relation knowledge graph equally important.However, due to the extension from binary relations to n-ary relations, the hyper-relation knowledge graph has both graph representations based on hypergraphs and sequential representations based on semantics.Most existing models mainly focus on handling only one type of representation within the internal structure of hyper-relations, which limits the comprehensive learning of hyper-relation knowledge graphs.Moreover, there is a large amount of neighbor information in hyper-relation knowledge graphs, but most existing models simply feed the sequential representations into Transformer layers, which greatly reduces the model’s ability to handle neighbors.Therefore, based on the two aforementioned issues, this paper presents a Hyper-Relation Knowledge Graph Completion model that integrates neighbor information(HKNI). HKNI not only effectively handles the two types of representations within the hyper-relation, but also efficiently processes neighbor information.In the end, we compared our model with existing baseline models and experimental results demonstrated that our model achieves the best performance in link prediction tasks.