bluuebunny/crossref_metadata_2025_split huggingface dataset:
Repair of Cracks in Concrete with the Microbial-Induced Calcite Precipitation (MICP) Method
Authors: Özhan Hacer Bilir , Yildirim Musa , Öğüt Hamdi , Öz Hilal Girgin 
Published: December 2023

Abstract
In this study, the microbiologically-induced calcium carbonate precipitation (MICP) method was employed to examine its potential for repairing cracks in concrete. In addition, specific gravity and porosity values were measured to examine the effect of calcite formations on concrete surfaces and microstructures. Bacteria-supplemented concrete repaired cracks up to 0.4 mm wide by filling them with CaCO3. Furthermore, this study not only examined the healing of the width but also the length of cracks. However, as the width of the treated cracks decreased, their length increased. This indicated that the MICP treatment is more effective in a limited crack range. Specific gravity values increased, and porosity values decreased in concrete supplemented with calcifying bacteria. SEM analyses showed that calcite is a bacterial product that forms a very tight bond with a cement gel and that calcite fills visible cracks and voids and creates more of a void-free and undamaged concrete structure.
Behavior of an Embankment on Stone Column-Reinforced Soft Soil
Authors: Wassie Tadesse Abebe , Demir Gökhan 
Published: December 2023

Abstract
Reinforcing soft soils with good drainage and load-bearing material is a common practice in the construction of embankments. Stone columns are among the granular materials that accelerate consolidation settlements due to their high drainage capacities. This study aims to investigate the behavior of an embankment on stone column-reinforced soft soil. The embankment was analyzed using the Plaxis 2D Finite Element Method. The columns were converted into equivalent walls using the plane strain conversion method. This method was validated with field measurement results from previous studies and showed good agreement. According to the research findings, stone columns significantly reduced deformations and improved consolidation. For instance, the ultimate settlement was decreased from 54.3 mm to 33.1 mm for 10% and 20% area replacement ratios, respectively. As the safety analysis verified, basal geosynthetics contributed substantially to the embankment’s stability. Furthermore, the safety factor values increased for all stages of the construction, and the global safety factor increased at the end of the construction. Stone columns and basal geogrid-reinforced soft soil can reduce settlement and increase the stability of an embankment.
Effect of Recovered Fibers on the Behavior of Concrete in Tension
Authors: Atlaoui Djamal , Adjrad Arezki , Bouafia Youcef 
Published: December 2023

Abstract
This study evaluates the performance of concrete under the effect of the addition of non-straight fibers recovered during the machining of steel parts and then studies the effect of the addition of corrugated fibers (chips) on their behavior in direct traction of the fiber concrete. In order to characterize the mechanical behavior and tearing of these fibers, three lengths of fibers were used (4 cm, 5 cm, and 6 cm); for each length we varied the percentage by volume (0.3%, 0.5%, 0.8%, 1%, and 1.2%). To make a comparative study, a second series of tests was carried out with control concrete (BT) without any fibers of the same composition. The results of the tests carried out indicate that the resistance and stiffness are significantly improved and that the fibers imparted significant ductility to the material compared to the control concrete. It was also observed that the percentage of fibers significantly influences the appearance of cracks. Moreover, with an increase in the percentage of fibers from 0.3% to 0.8%, the resistance increases, but beyond a content of 0.8%, the mechanical characteristics decrease.
The Angle of the Shear Resistance of Danube Gravel Derived from the Dynamic Penetration Test
Authors: Kučová Eliška , Frankovská Jana 
Published: December 2023

Abstract
The dynamic penetration test was used to investigate the angle of shear strength of Danube gravel. The correlations for its determination are available in the standards and literature. From the data set of the results, the characteristic value of the angles of shear strength was derived according to the recommended statistical procedure from the second generation of Eurocode 7. The characteristic values of the angle of shear strength were evaluated for well-graded gravels, poor-graded gravels, and gravels with fine-grained particles of the Danube. The correlations, which were based on field tests and considered the genesis of the soil, were compared with laboratory test results and a table of the values from the Slovak standard, which are used for purposes of comparison.
In our research we compared the characteristic field values of the angle of shear strength obtained in the laboratory to observe the effect of their genesis on the appropriateness of the correlations used. We conclude with recommendations for the regional correlations and suggest values of the angle of shear strength for the classes of gravels tested.
The Metamorphosis of Marketing Communication Media: Strategy to Cultivate Digital Marketing Enthusiasm and Creativity in Batik Business Products
Authors: Suharyanto Deny Feri , Rasaili Wilda , Andiriyanto Ach. , , Zarnuji , Arista Rahman Sindi 
Published: December 2023

The determination of technology has changed the face of the world in all sectors, the industrial and trade sectors in particular have a very significant impact. The technological revolution that touches all joints really forces all business people, in this case entrepreneurs, to move from conventional manual to digital. Even so, this internet technology revolution cannot suddenly get out of hand. It is necessary to test the readiness of the community to implement this digital technology. The research method uses descriptive qualitative through data collection by means of interviews, observation and FGD. The findings obtained are that the application of digital marketing is not optimal because it only relies on social networks. The implementation of digital marketing is carried out through stages, training and development followed by the implementation of programs that are adapted to the conditions at the Fahira Batik Collection. The results of the research are in the form of web-based e-commerce information technology development training and optimization of social media for craftsmen, training to improve the brand of Fahira Batik Collection products. So with this it is hoped that the craftsmen can expand their marketing reach by promoting their products through various social media so that it is expected to increase the income and welfare of the craftsmen.
Keywords: Digital Marketing, Commercialization, Technology, Communication
Photogrammetric angular measurements as a diagnostic tool for orthodontic treatment planning
Authors: Devi Laishram Bijaya , Keisam Avinash 
Published: December 2023

Objectives:
The aim of the study was to compare and correlate angular measurements of soft-tissue profile between cephalogram and photograph and to identify gender difference.

Materials and Methods:
Sample size consisted of 100 lateral cephalograms and 100 profile photographs of 100 Indian Bengali population aged 18– 25 years (50 males and 50 females; mean age = 21.28 years). All records were taken in natural head position, centric occlusion, and lips in relaxed position. For evaluation of method reliability, intra-class correlation coefficients (ICCs) were calculated from repeated photographic measurements. Similarly, cephalometric and photographic measurements were compared for assessing Pearson correlation coefficients. Linear regression analyses were done for the variable with correlation coefficients >r = 0.7. Ten angular parameters were used for soft tissue analysis and t-test was used for comparison. Statistical analyses were done using the Statistical Package for the Social Sciences for Windows software version 21.0.

Results:
The reliability test for photographs was found satisfactory with most measurements showing ICCs ≥ 0.90 and highly significant correlations (P ≤ 0.001) with cephalometric measurements. The N’-Prn’-Pg’ angle was found most effective for female subjects (r2 = 0.82), the N’-Prn’/N’-Pg’ angle for male subjects (r2 = 0.89) and among total subjects, the N’-Prn’/N’-Pg’ angle (r2 = 0.88).

Conclusion:
Photographs may be used for soft tissue evaluation for diagnosis and treatment planning as an alternative to cephalometric soft-tissue analysis.
Clinical characters of COVID-19 patient in a Saudi intensive care unit: A single-center experience
Authors: AlSulaim Lamees , Sobh Osamah , Hanash Redwan , Alatifi Afrah , AlAkeel Haya , Salati Sajad Ahmad , AlSuwaydani Saleh 
Published: December 2023

Objectives
Address and assess the clinical characteristics and outcomes of COVID-19 patients admitted to the intensive care unit (ICU) of King Saud Hospital Unaizah/Qassim, Saudi Arabia.

Material and Methods
A single-center observational retrospective study in King Saud Hospital, including 82 critically ill COVID-19 patients admitted to the ICU, confirmed by positive polymerase chain reaction testing of nasopharyngeal specimens.

Results
The study was conducted on 82 COVID-19 patients from April to October 2020. The mean patient age was 58.48 years. Males were more affected by the virus, accounting for 74% of admissions. Hypertension was our patients’ most common chronic disease (45%). Most (82.9%) of the patients presented with a cough. Leukocytosis, high ferritin, lactate dehydrogenase (LDH), and D-Dimer were associated with an increased risk for mortality. Tocilizumab was associated with good outcomes among our patients.

Conclusion
In this retrospective study, hypertension and being male are more common factors for disease severity. Patients improved with early intervention with tocilizumab and antibiotics, and in most cases, non-invasive ventilation was associated with good outcomes.
Caracterización de Microplásticos en Agua y Sedimentos en Los Humedales Los Pantanos De Villa, Chorrillos, Lima, Perú
Authors: Losno-Prado Angel Giuseppe , Iannacone Jose 
Published: December 2023

Los humedales Los de Pantanos de Villa (HPV), Chorrillos, Lima, Perú; es un sitio RAMSAR de gran importancia internacional por ser un lugar de descanso en las migraciones de aves. El objetivo fue caracterizar los microplásticos (MP) en agua y sedimentos en la Laguna Mayor de los humedales Los Pantanos de Villa, Chorrillos, Lima, Perú durante septiembre del 2019. Se recolectaron muestras de agua por arrastre vertical con una red Sparenet de 25 µm y de sedimentos de fondo con una draga Van Veen con área de muestreo de 0,025 m2 en tres sectores de la Laguna Mayor del HPV. Se cuantificaron los MP en base al color, forma y tamaño. Se encontraron en el agua 0,94 partículas·L-1, y en los sedimentos 64 partículas·kg-1. En los MP en agua y sedimento el color blanco y celeste/turquesa, la forma poligonal y laminar, y el tamaño de 401 a 500 um fueron los dominantes. Las actividades antrópicas urbanas e industriales, el destino ilegal de desmontes, botaderos y arrojo de basura, tráfico vehicular y peatonal colindante a la Laguna Mayor, y el transporte de MP por viento podrían ser factores que expliquen las diferencias de los MP entre los sectores del HPV.
ESTIMATION OF THE PARAMETERS OF THE LOWER IONOSPHERE DURING X-RAY FLARES ON THE PROPAGATION PATHS OF VLF SIGNALS RECEIVED AT THE MIKHNEVO AND UL’YANOVKA OBSERVATORIES
Authors: Поклад Ю.В. , Бессараб Ф.С. , Гаврилов Б.Г. , Ермак В.М. , Ряховский И.А. 
Published: December 2023

В работе проводится сравнительный анализ восстановленных ионосферных параметров по данным приема СДВ сигналов в геофизических обсерваториях (ГФО) «Михнево» ИДГ РАН и «Ульяновка» (Калининградский филиал ИЗМИРАН) во время солнечной вспышки 03.07.2021 г. Показано, что разработанная методика восстановления параметров ионосферы применима к трассам различной длины. Предлагается дальнейшее развитие методики, которая могла бы обеспечить восстановление параметров ионосферы на одночастотной трассе по измерениям в двух точках.
The paper presents a comparative analysis of the reconstructed ionospheric parameters based on the data of receiving VLF signals at the Mikhnevo and Ul’yanovka observatories during the solar flare on 07/03/2021. It is shown that the developed method for reconstructing ionospheric parameters is applicable to paths of various lengths. A further development of the technique is proposed, which could ensure the reconstruction of the ionospheric parameters on a single-frequency path from measurements at two points.
SOME ASPECTS OF THE LWPC MODEL USAGE IN GEOPHYSICS PROBLEMS
Authors: Корсунская Ю.А. , Беккер С.З. 
Published: December 2023

Радиофизическая модель LWPC предназначена для расчетов распространения радиоволн ОНЧ–НЧ диапазона в волноводном канале земля – ионосфера и является свободно распространяемой программой. По этой причине многие исследователи в области геофизики ионосферы и атмосферы используют ее как инструмент верификации создаваемых ими моделей путем сопоставления теоретических результатов с результатами натурных радиоизмерений. Однако для получения корректных выводов необходимо знать, какую точность обеспечивает LWPC и каково влияние различных параметров модели. Этой информации нет в описании программы, поэтому в данной работе сделана попытка компенсировать указанный недостаток. Анализ рассмотренных нами вариантов позволил сделать следующие выводы. Точность модели составляет ~ 0.1–0.5 дБ для амплитуды и 1° – 5° для фазы и зависит от трассы (координат передатчика и приемника и частоты). На эту точность программа выходит при задании ионосферы с шагом 100–150 км вдоль трассы. Замена встроенных моделей проводимости земной поверхности и магнитного поля Земли на актуальные версии не оказывает существенного влияния на результаты расчетов. Принципиальное отличие получено при замене частот соударений со стандартной экспоненциальной высотной зависимости на значения, вычисленные согласно распределению параметров нейтральной среды. В этом случае различие амплитуд достигло нескольких децибел, а фаз – нескольких десятков градусов.
The LWPC radio-physical model is intended for calculating the propagation of VLF-LF radio waves in the earth-ionosphere waveguide channel. It is an open-access program. Thus, many ionosphere and atmosphere geophysics researchers use the program as a tool for verifying the models by comparing theoretical results with the radio-field measurements. However, it is necessary to know what accuracy LWPC provides and what the influence of various model parameters is in order to obtain correct conclusions. This information is not available in the program user’s guide, so this work makes an attempt to compensate for this shortcoming. Analysis of considered variants allowed us to draw the following conclusions. The accuracy of the model is ~0.1–0.5 dB for amplitude and 1° – 5° for phase and depends on the path (coordinates of the transmitter and receiver and frequency). The program reaches this accuracy when specifying the ionosphere with a step of 100–150 km along the path. Replacing the built-in models of the ground conductivity and the Earth’s magnetic field by actual versions does not have a significant impact on the calculation results. The fundamental difference was obtained by replacing the collision frequencies, which are based on the standard exponential altitude dependence, with values calculated according to the distribution of neutral medium parameters. In this case, the difference in amplitudes reaches several decibels, and phases – several tens of degrees.
FEATURES AND TRENDS OF TOURISM DEVELOPMENT IN SIBERIAN FEDERAL DISTRICT
Authors: Лаврова Т.А. , Уваров С.А. , Чекалин В.С. 
Published: December 2023

В статье анализируются основные характеристики и тенденции развития туризма в Сибирском федеральном округе РФ. Представлены основные экономические показатели развития туризма, такие как количество коллективных средств размещения за период 2018-2021 гг. Особое внимание уделяется структурным аспектам Сибирского федерального округа и сравнительной рейтинговой оценки как с позиций национального туристического рейтинга, так и с позиций итогового рейтинга развития данного региона. На основе анализа представленной информации разработаны первоочередные меры по дальнейшему развитию туризма в Сибирском федеральном округе Российской Федерации.
We analyze the main characteristics and trends of tourism development in the Siberian Federal District of the Russian Federation. The main economic indicators of tourism development are presented, such as the number of collective accommodation facilities for the period of 2018-2021. Special attention is paid to the structural aspects of the Siberian Federal District and comparative rating assessment both from the point of view of the national tourist rating and the final rating of the development of the region. Based on the analysis of the information presented, priority measures for further development of tourism in the Siberian Federal District are developed.
ON GOOD FAITH OF TAXPAYERS
Authors: Шеховцева Е.В. 
Published: December 2023

В статье утверждается, что презумпция невиновности, характерная для норм уголовного законодательства, в сфере налоговых отношений трансформируется в принцип добросовестности налогоплательщиков, который многие авторы трактуют как презумпцию. Однако понятие «добросовестность налогоплательщика» и критерии отнесения налогоплательщика к этой категории, несмотря на отсутствие законодательного закрепления, нашли отражение в правоприменительной практике, прежде всего в судебной, в том числе Конституционного Суда Российской Федерации (РФ).Авторами рассмотрены главные этапы трансформации подходов к определению понятия «добросовестность налогоплательщиков» через анализ правоприменительной практики, в том числе через оценку действий налогоплательщиков на основе судебной практики.
Presumption of innocence, deemed to be specific to the criminal law norms, in the context of tax relationships transforms into the principle of «good faith of taxpayers», which has been interpreted by many authors as a presumption. However the very concept «good faith of a taxpayer» and the criterium of assigning a taxpayer to this category have been reflected in law enforcement practice despite the lack of legislative support including the Constitutional Court of the Russian Federation. The article focuses on major steps of transformation of approaches to determining good faith of taxpayers through analysis of law enforcement practices including the one through the assessment of taxpayers’ performance on the basis of judicial practice.
CERTAIN FEATURES OF SUMMARY CIVIL PROCEEDINGS IN POLAND
Authors: Рогова Ю.В. 
Published: December 2023

Статья посвящена анализу природы и специфики упрощенного производства в гражданском судопроизводстве Польши. В исследовании показаны общие признаки упрощенного производства и его обязательный характер, определены дела, которые могут быть рассмотрены в порядке такового. Автор обращает внимание на существование в процессуальном законодательстве Польши специфических требований по представлению процессуальных документов в порядке упрощенного производства, а также возможность рассмотрения по указанной форме требований, возникающих из трудового договора. Авторская точка зрения аргументирована, сделаны выводы с учетом анализа мнений иностранных исследователей, выделены положительные и отрицательные черты рассматриваемого института в Польше.
The article deals with the analysis of the nature and specifics of simplified proceedings in Poland. The study separately demonstrates common features of simplified proceedings in Poland and mandatory nature thereof, identifies the cases that can be considered as such. Within the framework of the study the author notes the existence of specific requirements in the Polish procedural legislation regulating submission of procedural documents in a simplified procedure, as well as the possibility of considering in the same way claims arising from the labor contract. The author argues his point of view and draws conclusions based on the analysis of the opinions of various foreign procedural scholars, highlighting positive and negative features of the Polish institution under study.
ON DISTINCTION OF CRIMES COVERED BY PARA. «B» P. 3 ART. 158 AND ART. 215.3 OF THE CRIMINAL CODE OF RUSSIA
Authors: Имамова Э.М. 
Published: December 2023

В статье автором проведен анализ практических проблем, возникающих при разграничении преступлений, предусмотренных п. «б» ч. 3 ст. 158 и ст. 215.3 Уголовного кодекса Российской Федерации (УК РФ). Раскрыты основные понятия, признаки составов преступления, позволяющие разграничить указанные преступные деяния. В результате исследования автором сформулировано предложение о внесении соответствующих изменений в диспозиции исследуемых статей УК РФ, что, согласно авторской позиции, позволит решить вопрос о разграничении рассмотренных в статье деяний.
The article deals with the author's analysis of practical issues arising in the course of differentiation of crimes under para. «B» p.3 Art.158 and Art. 215.3 of the Criminal Code of Russia. The study provides analysis of basic concepts along with elements of crimes that allows to delimit related criminal activities. As a result the authors makes a conclusion and suggests some changes to provisions of Criminal Code of the Russian Federation, which will resolve the issue of distinction of these acts.
Рrevention of contrast-induced nephropathy during interventional treatment of acute coronary syndrome
Authors: Myakinkova L.O. , Yarmola T.I. , Pustovoit G.L. , Kostrikova Iu.A. , Pysana B.O. 
Published: December 2023

The aim of the work was to determine the risk factors of contrast-induced nephropathy in patients with acute coronary syndrome and to evaluate the effectiveness of methods of its prevention. There were examined 62 patients admitted to the interventional cardiology department during 9 months of routine practice with a diagnosis of acute coronary syndrome and concomitant chronic kidney disease. Among them, 56.45% have diabetic nephropathy, 21% – hypertensive nephro­pathy, 19.35% – chronic pyelonephritis, 3.2% – gouty nephropathy. According to the stages of chronic kidney disease: I stage – 8.1%, II stage – 46.8%, III A stage – 30.6%, III B stage – 14.5% of patients. The control group consisted of 32 patients with acute coronary syndrome without kidney pathology. All patients underwent urgent percutaneous coronary intervention using a water-soluble low-osmolarity radiocontrast medium. The risk of contrast-induced nephropathy was determined according to the Mehran scale. Contrast-induced nephropathy was diagnosed by an increase in serum creatinine over 24-48 hours by >25%. Prevention of contrast-induced nephropathy according to existing recommendations was carried out by prescribing early statin therapy and diuresis-controlled combined hydration in 22 patients with concomitant chronic kidney disease. Mathematical processing was performed using Statistica 8.0 software (StatSoft Inc, USA). Patients with chronic kidney disease had a high and very high risk of contrast-induced nephropathy in 19.4% and 3.2% of cases, among them in 91.6% of high and in 100% very high-risk contrast-induced nephropathy developed. Patients in the control group had a low to moderate risk, none of them developed contrast-induced nephropathy. It has been shown that the risk of contrast-induced nephropathy depends on the stage of chronic kidney disease and is associated with a decrease in the ejection fraction of the left ventricle (≤40%), acute left ventricle failure of the III and IV classes according to Killip, a decrease in diuresis in the first 12-24 hours after urgent percutaneous coronary intervention up to ≤0.6 ml/h/kg; in patients with diabetic nephropathy taking metformin 6-12 hours before the administration of the X-ray contrast medium and the glomerular filtration rate ≤45 ml/min./1.73 m2. In patients who underwent prevention of contrast-induced nephropathy in its entirety, its development was not registered.