bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fractional Model of Geoacoustic Emission
Authors: Паровик Р.И. 
Published: December 2023

В настоящей работе была предложена и исследована дробная динамическая система, которая описывает высокочастотную геоакустическую эмиссию с наследственностью. Модель представляет собой систему из двух связных линейных осцилляторов с непостоянными коэффициентами и производными дробного порядка Герасимова-Капуто. Каждый осциллятор описывает дислокационный источник геоакустической эмиссии. Модель строится на основании предположения, что взаимодействие между источниками осуществляется только через излучение. Наличие наследственности указывает на изменение интенсивности такого взаимодействия. Для дробной динамической модели с производными Герасимова-Капуто справедливы локальные начальные условия, т.е. ставится задача Коши. Далее в работе на основе аппроксимации дробных производных Герасимова-Капуто строится нелокальная явная конечно-разностная схема для численного решения задачи Коши. Проводится визуализация численного решения. Были построены с помощью численного алгоритма при различных значениях порядков дробных производных осциллограммы и фазовые траектории в среде компьютерной алгебры Maple. Дана некоторая интерпретация результатов моделирования.
In this work, a fractional dynamic system that describes high-frequency geoacoustic emission with heredity was proposed and investigated. The model is a system of two connected linear oscillators with nonconstant coefficients and Gerasimov-Caputo fractional order derivatives. Each oscillator describes a dislocation source of geoacoustic emission. The model is built on the assumption that interaction between sources occurs only through radiation. The presence of heredity indicates a change in the intensity of such interaction. For a fractional dynamic model with Gerasimov-Caputo derivatives, local initial conditions are valid, i.e. the Cauchy problem is posed. Further in the work, based on the Gerasimov-Caputo approximation of fractional derivatives, a nonlocal explicit finite-difference scheme is constructed for the numerical solution of the Cauchy problem. The numerical solution is visualized. Oscillograms and phase trajectories were constructed using a numerical algorithm for various values of the orders of fractional derivatives in the Maple computer algebra environment. Some interpretation of the simulation results is given.
Хаотические режимы в маломодовой модели αΩ-динамо с эредитарным подавлением α-эффекта энергией поля
Authors: Шереметьева О.В. 
Published: December 2023

В статье исследуются условия, при которых возможно моделирование хаотического режима магнитного поля в крупномасштабной модели αΩ-динамо в маломодовом приближении. Интенсивность α— и Ω-генераторов регулируется силой Лоренца. Подавление α-эффекта определяется воздействием силы Лоренца через процесс с эредитарными свойствами (конечной «памятью»). Характер воздействия процесса определяется знакопеременным ядром с варьируемыми частотой затухания и коэффициентом затухания. Воздействие крупномасштабного и турбулентного генераторов на магнитогидродинамическую систему заложено в управляющих параметрах — числе Рейнольдса и мере α-эффекта, соответственно. В рамках данной работы решения магнитогидродинамической системы исследованы на устойчивость по Ляпунову в окрестности точки покоя в зависимости от заданных значений входящих параметров. По результатам численного эксперимента определены ограничения характеристики устойчивости и параметров системы, при которых возможно моделирование хаотического режима магнитного поля.
This article considers the conditions under which it is possible to simulate the chaotic regime of the magnetic field in a large-scale model αΩ-dynamo in a low-mode approximation. The intensity of the α– and Ω-generators is regulated by the Lorentz force. The quenching of the α-effect is determined by the action of the Lorentz force through a process with hereditarity properties (finite «memory»). The nature of the impact of the process is determined by an alternating kernel with variable damping frequency and damping coefficient. The effect of large-scale and turbulent generators on the magnetohydrodynamic system is embedded in the control parameters — the Reynolds number and the measure of the α-effect, respectively. Within the framework of this work, the solutions of the magnetohydrodynamic system are investigated for Lyapunov stability in the vicinity of the rest point, depending on the set values of the input parameters. Based on the results of the numerical experiment, the limitations of the stability characteristic and parameters of the system are determined, under which it is possible to simulate the chaotic regime of the magnetic field.
Formulation and evaluation of irbesartan fast disintegrating tablets by direct compression technique
Authors: B Archana , Sadiq Abubakar , Mahadev Anitha , Begum Maleka 
Published: December 2023

The main objective of the present study is to develop a pharmaceutically stable, cost effective & quality improved robust formulation. The main aim of the present work is to formulate & evaluate Irbesartan fast disintegrating tablets by using pH 6.8 phosphate buffer as a dissolution medium, USP II paddle method. The superdisintegrants sodium starch glycolate, croscarmellose sodium, and crospovidone were used in the current work to generate a total of six distinct formulations employing the direct compression method. Irbesartan, an angiotensin receptor blocker, has a role in the treatment of hypertension. This review summarises recent developments in this area and looks at the role of this drug in light of studies that assessed its safety, tolerability, as well as effectiveness. The prepared batches were evaluated for disintegration and In vitro dissolution studies. Among all the formulations, F3 was concluded to be the best formulation, because it is having the disintegration time of less than 3 mins and showed 95% dissolution within 30mins.
Possible Reasons for Spurious Regression in the Econometric Model (Case Study of Imports in the United States of America)
Authors: Fakhr Samer Muhammad , Bouabid Anis 
Published: December 2023

Purpose: The research aims to identify statistical, econometric, and economic indicators to infer the problem of spurious regression.

Theoretical framework: The research used a descriptive and econometric approach to identify the dimensions of this problem and the most likely causes of its emergence.

Design/Methodology/Approach: The research estimated four equations, the first two are simple linear regressions (y, x1) and (y, x2), the third is a multiple linear regression equation (y, x1, x2), and the fourth is a double logarithmic regression equation for multiple linear regression. The results of the four equations were compared to assess the standard methods and explore spurious regression.

Findings: The research concluded with several findings, one of which is that a high value of the coefficient of determination (R2) in the absence of significance of the parameters is an indication of the problem of multicollinearity, and hence the possibility of spurious regression.

Research, Practical & Social implications: Spurious regression can lead to misleading conclusions about the relationships between economic variables, this can have negative consequences for economic policymaking and other decision-making processes. The research on spurious regression can help to improve the accuracy and reliability of economic analysis, which can benefit society as a whole.

Originality/Value: The paper could provide recommendations for how to avoid spurious regression in econometric models of imports. This could include recommendations for data collection, data preparation, and model specification.
Celebrity Expertise and Congruence on Consumer Purchase Intentions: Evidence by Nigerian Mobile Telecommunication Companies
Authors: Onu Christopher Aja , Nwaulune Jude Chekwume , Agu Emmanuel , Bamidele Ayodeji , Adetunji Olawale Lola , Nwankwere Idowu Aderonke , Ayeni David , Ismail Rufai 
Published: December 2023

Purpose: Celebrity endorsement is a marketing strategy firms have embraced to survive and fortify their market competitiveness. This study examined how celebrity expertise and congruence affect consumer purchase intentions in Nigerian telecommunications companies.

Theoretical framework: The theory of planned behaviour describes all behaviour of individuals who possess the power to exercise self-restraint. The predictors of purchase intentions as submitted by this theory comprised attitudes; behavioural intention; subjective norms; and perceived behavioural control.

Method: It adopted a survey research design. A proportionate stratified random sampling technique was employed in the research while a questionnaire was used to gather participant data. The instrument was validated while the reliability tests ranged between 0.654 and 0.795. A Partial Least Square (PLS) modelling was adopted to analyse data collected from the respondents.

Findings: The findings showed that celebrity expertise and celebrity congruence all have a significant positive effect on consumers’ intention to purchase in the Nigerian mobile telecommunication operators in Lagos State, Nigeria.

Research Implication: The managerial implication is that it will enhance inter-enterprise collaborations among telecommunications companies by working together with their ideas and skills to accomplish a desired task that is innovative in nature for the benefit of the companies.

Originality/Value: This study is the first of its kind to deal with celebrity expertise and celebrity congruence on consumers’ intention to purchase in the Nigerian mobile telecommunication operators in Lagos State, Nigeria.
The Role of Mastery Goal on Life Satisfaction Using PERMA as A Mediator for College Students
Authors: Hidayat Riyan , Liu Sibo , Mohd Saad Mohd Rashid , Hermandra . 
Published: December 2023

This study examined the relationship between mastery goals, including task-based and self-based competence, and positive emotions, engagement, relationship, meaning, and accomplishment (PERMA), which may affect life satisfaction. Mastery goals, PERMA, and life satisfaction were examined using a relationship study model. The current study involved 260 English education programs, with 81 (31.2%) male students and 179 (68.8%) female students. AMOS 18 was used to conduct a confirmatory factor analysis (CFA). The results of the current study demonstrate that task-based competence influences life satisfaction. In contrast, self-based competence was found not to affect life satisfaction. Analysis of SEM revealed significant influences of task-based competence on PERMA and no significant relationships between self-based competence and PERMA. PERMA partially mediates the influence of task-related competence on life satisfaction. The indirect effects of self-based competence on life satisfaction were observed through PERMA as a complete mediator. The novelty of the current research lies in its focus on mastery goals, the target population of college students, and the mediating role of PERMA. These contributions are critical, as teachers or instructors are responsible for developing student well-being and life satisfaction. Doi: 10.28991/ESJ-2023-SIED2-018 Full Text: PDF
توظيف أسلوب النصّ القرآنيِّ في كتاب الفصول والغايات لأبي العلاء المعرِّيِّ
Authors: HARAMİ Hanaa 
Published: December 2023

بين عاميّ (363 ـ 449 هـ/ 973- 1057م) عاشَ الأديبُ الفيلسوفُ الشّاعرُ أبو العلاء أحمدُ بنُ عبدِ الله بنُ سليمان المعرِّيّ، وكان من الأعلام البارزين في العصرِ العبّاسيّ، إذْ أمضى حياتَه متعبّدًا في محراب العلم.
وقد عاشَ في عصرٍ اجتمعَ له فيه من أسبابِ العلم وصنوفِ المعرفة وفنون ِالأدب الشيءُ الكثير، واطّلعَ على الثقافة الإسلامية بشكل كبير، كما غذّى نفسَه بألوانٍ من الثّقافات الوافدة. وقد تعدّدت مصادرُ ثقافته من الثّقافة اللّغويّة إلى الثّقافة الأدبيّة، إلى الثّقافة التّاريخيّة والثّقافة الدّينيّة، إضافةً إلى الثّقافة العامّة.
ونظراً لأنّ ثقافتَه الإسلاميّة كانت واسعةً وبارزةً في نتاجه فقد آثرتُ أن أخصّصَ بحثي في مجال تأثير القرآن الكريم في نثره، وتحديداً في كتابه " الفصول والغايات". فمن المعروف أنّ المعريّ كان متضلِّعًا ومتمكّنًا من كتاب الله حفظًا وتلاوةً ودَرْسًا، وقد تجلّى ذلك في استنطاق نصوصه، واستلهام معانيه وآياته وصوره الرّائعة وتعابيره المعجزة.
هذا كلّه قد دفعني إلى دراسة توظيف أسلوب النّصّ القرآنيّ في كتابه الفصول والغايات. الّذي حاكى فيه القرآن الكريم مستفيدًا من أسلوبه وبيانه وطريقته في التّعبير والأداء.
Pour en finir avec la contre-culture settler : place à la contre-culture autochtone
Authors: Kirouac Massicotte Isabelle 
Published: December 2023

À ce jour, on a surtout étudié la contre-culture d’un point de vue occidentalocentriste et colonialiste, et ce sans reconnaître l’appropriation culturelle qui la caractérise pourtant, qu’il s’agisse des nombreux emprunts superficiels aux spiritualités orientales (Roszak 1995 [1969]) ou encore de l’adoption artificielle de modes de vie autochtones, que l’on a qualifiée, à tort, de « retour à la nature » (Deloria 2013). La contre-culture, dans sa signification véritable de remise en question des structures oppressives de la vie (le Blanc 2014), est intrinsèquement liée aux prises de parole autochtones des années 1970 et 1980. Pour Emma LaRocque (Crie/Métisse), puisque les littératures autochtones, en tant que forme d’expression collective, n’étaient pas possibles avant les années 1970 (2010 : 19), les écritures autochtones seraient l’histoire d’une contestation stratégique (2010 : 24). Plus encore, la littérature contestataire serait le canon des littératures autochtones (LaRocque 2010 : 25). C’est la dévalorisation colonialiste des cultures autochtones qui a généré une réponse contre-culturelle, un contre-discours autochtone qui, porté par la colère et la polémique, invite à une révision de plusieurs sources de savoir eurocentrées (LaRocque 2010 : 70 et 108). Avec cette contribution, j’espère parvenir à déconstruire la contre-culture settler et à esquisser les contours de ce que sont les contre-cultures littéraires autochtones.
Análisis bibliométrico del enfoque de la lingüística de corpus en estudios de terminología y lexicología en la categoría linguistics de Web of Science
Authors: Umaña Corrales Olga Clemencia 
Published: December 2023

La lingüística de corpus permite analizar, describir y develar el funcionamiento de la lengua, así como reorientar su estudio a partir de la exploración de su uso real. El objetivo de este artículo es presentar un estudio bibliométrico descriptivo para identificar las tendencias sobre la implementación de la lingüística de corpus en las publicaciones más relevantes en Terminología y Lexicología en la categoría Linguistics de la base de datos Web of Science (WoS) entre 2012 y 2021. Se utilizan elementos bibliométricos y técnicas de minería de texto para identificar los autores más relevantes, las instituciones con más publicaciones y las revistas más productivas. También se describen los indicadores de productividad, colaboración y liderazgo científico y se grafican mediante la herramienta VOSviewer. Los resultados muestran que se ha presentado un aumento exponencial en la productividad de las investigaciones basadas en lingüística de corpus en esta última década y que España, con la Universidad de Granada, y Bélgica, con la Universidad Ghent, lideran dicha productividad. También se determinó que los autores más relevantes son Hoste, Lefever, Rigouts Terryn, Faber, Rojas y Tercedor-Sánchez y que la revista independiente Terminology encabeza el número de publicaciones en el área. Adicionalmente, al identificar los estudios más actuales mediante la herramienta Tree of Science (ToS), se estableció que la extracción automática de términos, la metodología de corpus, la semántica de marcos y el trabajo de lexicología y terminología en ámbitos de especialidad son algunas de las áreas con mayor perspectiva de investigación.
TAFI phenomenon and its clinical significance
Authors: Bokarev I. N. , Melnikov A. P. , Burykh S. I. 
Published: December 2023

Thrombin activatable fi brinolysis inhibitor (TAFI) is one of the key proteins of fi brinolysis and infl ammation systems. Based on literature data, information is presented on the biological eff ects of TAFI, the mechanisms of its activation, gene polymorphism that determines the duration of its action and activity. Nosological forms are listed, where TAFI is important in the pathogenesis of the development of diseases, its role in experimental and laboratory studies, and the possibility of pharmacological infl uence on the activity of this protein.
Primary hyperaldosteronism: the choice in favor of conservative surgery
Authors: Annayev M. S. , Stegniy K. V. , Geltser B. I. , Goncharuk R. A. , Morozova A. M. , Maslyantsev E. V. 
Published: December 2023

Primary hyperaldosteronism (PHA) is the most common cause of secondary arterial hypertension among endocrine disorders. Given that patients with this pathology are at a higher risk of developing fatal and non-fatal cardiovascular events, early diagnosis and timely treatment are of great importance. Currently, the two main forms of PHA are aldosterone-producing adenoma and bilateral adrenal hyperplasia, which are treated with laparoscopic adrenalectomy or pharmacotherapy with mineralocorticoid receptor antagonists. Although most patients experience restoration of their functional and metabolic status after surgical intervention, some may develop postoperative adrenal insuffi ciency, which requires long-term hormone replacement therapy. This review examines the options for organ-preserving surgeries, such as partial adrenalectomy and selective embolization of the adrenal artery.
Features of the blood lipid spectrum in men exposed to elevated noise levels
Authors: Rudoi M. D. , Makarova E. V. , Strakhova L. A. , Ivanova Yu. V. 
Published: December 2023

Dyslipidemia is the main factor in the initiation and progression of atherosclerosis. The search for probable factors aff ecting lipid metabolism is relevant.The aimof the study was to evaluate the parameters of lipid metabolism in the blood serum of men exposed to elevated noise levels.Material and methods.293 men with no confi rmed atherosclerotic cardiovascular diseases were examined. Among the surveyed, 2 groups were identifi ed: 203 men who work under the infl uence of noise, and 90 men who do not come into contact with harmful production factors. Total cholesterol, triglycerides, low- and high-density lipoproteins, and the level of oxidized low-density lipoproteins were determined. Remnant cholesterol, atherogenic index and atherogenic plasma index were calculated.Results.Among persons under 55 years of age working in noise, an increase in total cholesterol (p = 0.02) and remnant cholesterol (p = 0.0006), a decrease in high-density lipoproteins (p = 0.03) and a tendency to increase the atherogenic index (p = 0.05) and the atherogenic plasma index (p = 0.07) were revealed. The prevalence of hypercholesterolemia was comparable in the main and control groups and amounted to 56.7 and 47.4%, respectively (p = 0.17). The median level of oxidized low-density lipoproteins in people working with noise did not exceed the upper limit of the norm. Conclusions. In men younger than 55 years old, working under conditions of exposure to increased noise levels, some features of the blood lipid spectrum are observed. The revealed changes may indicate an increase in the atherogenic potential of the blood serum
Renovascilar hypertension against the background of multifocal atherosclerosis: impact of endovascular methods of correction on its course and optimization of remedial measures
Authors: Fursov A. N. , Potekhin N. P. , Chernov S. A. , Zakharova E. G. , Gaidukov A. V. 
Published: December 2023

The course of renovascular (resistant) arterial hypertension was analyzed in 60 patients (45 men, 15 women) with isolated atherosclerotic stenosis of the renal artery of more than 75% (group 1), and in 30 patients (26 men, 4 women) who, in addition to unilateral stenosis of the renal artery of more than 75%, also had stenoses of the brachiocephalic arteries up to 60% of the vessel diameter (group 2). The mean age of the examined patients in group 1 was 52.4 ± 6.9 years, and in group 2 it was 53.2 ± 7.4 years. Endovascular correction of hemodynamically significant stenosis of the renal artery leads to a significant decrease in systolic and diastolic blood pressure levels, a reduction in the number of antihypertensive drugs from 5-4 to a 3-component scheme in most cases, and an improvement in the functional state of the kidneys. At the end of the 2-year observation period, in patients with multifocal lesions of the renal and cerebral arteries (group 2), both systolic and diastolic blood pressure levels corresponded to “high normal” values, while in group 1 (isolated renal artery lesions) they corresponded to “normal” blood pressure levels. Patients in group 2 had metabolic disorders such as atherogenic dyslipidemia, hyperuricemia, and significant signs of renal dysfunction. The multifocal nature of atherosclerotic vascular lesions contributes to a more “severe” course of the disease, which should be taken into account when conducting treatment measures.
Modern approaches to the choice of schemes for eradication of Helicobacter рylori infection (based on the materials of the consensus meeting "Maastricht-VI")
Authors: Sheptulin A. A. , Kardasheva S. S. , Kurbatova A. A. 
Published: December 2023

The article presents an analysis of the provisions of the consensus meeting “Maastricht-VI”, dedicated to the treatment of Helicobacter pylori (H. pylori) infection. The expediency of preliminary testing for H. pylori sensitivity to antibiotics is emphasized. Since this strategy has not yet been implemented in everyday clinical practice, empirical therapy is often carried out based on the results of the assessment of H. pylori resistance to antibiotics in this region. The sequence of administration of eradication regimens of the 1st, 2nd, 3rd, 4th lines, optimal duration of treatment, new therapy regimens (with rifabutin, double therapy with proton pump inhibitors and amoxicillin in high doses) are considered. The implementation of the new consensus meeting will contribute to improving the results of eradication therapy of H. pylori infection.
Comprehensive Colony Health Management and Emerging Pathogens of the Annual Killifish Species Nothobranchius furzeri
Authors: Naumann Uta , Brazzell Jennifer L , Crim Marcus J , Hoppe Beate 
Published: December 2023

AbstractThe Leibniz Institute on Aging has maintained killifish colonies for over 15 y. Our veterinarians, scientists, and animal technicians developed a fish health scoring system and routine colony health surveillance program for our colonies. Over a 4-y period, health data from the African turquoise killifish Nothobranchius furzeri colony were systematically collected and analyzed. The fish health assessment system facilitated categorization of clinical signs and differentiation of fish with mild clinical signs from fish that required euthanasia. This report provides new information on clinical signs and conditions that may occur in young and aged N. furzeri. To be comprehensive, a colony health surveillance program incorporates animal health at both the individual and the population levels. The quarterly routine health monitoring program identified Mycobacterium spp. as the most common agent in our facility and identified the killifish pathogen (Loma acerinae) for the first time. Taken together, these findings demonstrate the importance of a comprehensive colony health management system in a fish research facility. By improving the health and welfare of fish used for research, the scientific community will benefit from less variable and more reliably reproducible research results.