bluuebunny/crossref_metadata_2025_split huggingface dataset:
DISPERSION OF CELLULOSIC MATERIALS BY AERODYNAMIC METHOD
Authors: Malinovskaya Galina Kirillovna , Smirnova Yekaterina Grigor'yevna 
Published: November 2023

The dissolution of primary and secondary cellulose semi-finished products in order to obtain a fluff fibrous product is becoming increasingly important due to the growth of its use in various industries. The existing equipment dissolves the dried semi-finished product, while the cellulose fibers partially lose their paper-forming properties. In the technology of aerodynamic forming of paper, a wet cellulose semi-finished product is dispersed, which preserves the ability of fibers to bond formation and excludes their mechanical destruction.
Fluff pulp was obtained by dispersing dry and wet cellulose semi-finished product оn a laboratory installation for aerodynamic molding. The comparison of the properties of fibers by the value of their specific surface area and the ability to form paper with the strength characteristics required for operation is carried out. The breaking force value of paper formed from wet fibers is 4 times higher than that of paper from dry fibers.
The possibility of using fluff pulp in the manufacture of multilayer paper for sanitary – hygienic purposes, which meets the requirements of GOST Ru 52354-2005 group B in terms of the values of the destructive force, is shown.
The aerodynamic paper disperser can be used as an alternative equipment for separating cellulosic materials while screening the fibers.
Clay-based bricks’ rich illite mineral for gamma-ray shielding applications: An experimental evaluation of the effect of pressure rates on gamma-ray attenuation parameters
Authors: Mahmoud K. A. , Marashdeh M. W. 
Published: November 2023

Abstract
The objective of this study is to increase the natural clay mineral-based bricks’ ability to shield γ-rays without the use of external doping materials. Six brick samples were consequently developed at various pressure rates (PRs). The chemical composition and structure of the manufactured bricks are unaffected by the PR applied. The main constituents in the clay used to make bricks are illite and quartz minerals, according to an X-ray diffraction pattern. Additionally, scanning electron microscopy and energy dispersion X-rays have demonstrated the morphology and chemical composition of the used clay. Besides, the Mh-300A density meter shows an increase in the fabricated bricks’ density by increasing the PR, where the brick’s density increased by 32.92% by increasing the PR from 7.61 to 114.22 MPa, respectively. Also, the effects of the PR on the radiation shielding properties of the fabricated bricks were investigated using a NaI (Tl) detector. The data reveal that increasing the PR between 7.61 and 114.22 MPa improved the linear attenuation coefficient by 44.5, 23.8, 24.2, and 24.8%, respectively, for gamma-ray energies of 0.662, 1.173, 1.252, and 1.332 MeV. The capacity of fabricated bricks to shield against radiation increases as the linear attenuation coefficient increases. The lead’s equivalent thickness and half-value thickness of the fabricated clay-based bricks, on the other hand, decreased. As a result, the compacted natural clay brick, which is a lead-free material, provides a suitable alternative for gamma-ray shielding in radioactive locations.
Reinterpretando el mito de la frontera en tiempos de la Gran Depresión: el New Deal y Las uvas de la ira
Authors: Rodríguez Campesino Aida 
Published: November 2023

La noción de frontera ha tenido una importancia fundamental en la historia de Estados Unidos, especialmente desde 1893, cuando Frederick Jackson Turner formuló su célebre tesis. En torno a ella, se han construido diversas imágenes que han llegado a convertirse en mitificaciones o idealizaciones, las cuales han influido en el imaginario colectivo desde los orígenes de la República, pero la realidad que esconden no siempre se parece a la imaginada. En el presente escrito se pretende analizar de qué manera el New Deal de Franklin D. Roosevelt supone una superación de fronteras socioeconómicas, en primer lugar, y cómo influye el mito de la frontera en los relatos culturales de la Gran Depresión de los años treinta, centrándose en el caso de la novela y la película Las uvas de la ira de John Steinbeck y John Ford, respectivamente.
Prácticas inclusivas ante el riesgo de exclusión socio-educativa. Estructuras de trabajo colaborativo en centros escolares situados en zonas de deprivación social
Authors: Amores F. Javier , Ritacco Maximiliano 
Published: November 2023

El estudio que aquí se presenta fue realizado en tres centros educativos situados en zonas de deprivación social con el objetivo de identificar dinámicas de actuación con el alumnado en riesgo de fracaso escolar en clave de prácticas inclusivas. Para ello, el enfoque empleado propuso responder a siguiente cuestionamiento ¿Es posible identificar y documentar prácticas inclusivas que den respuesta y sean parte de una política activa contra la exclusión educativa? Para abordar dicho interrogante, utilizamos un enfoque cualitativo de investigación proyectado hacia la identificación de prácticas inclusivas buscando captar, mediante un enfoque interpretativo, los significados que se construyen en el mundo escolar en contextos desfavorecidos, y así, poder comprender las relaciones y significados de las acciones de los sujetos en estos centros. Los instrumentos de recogida de información incluyeron: -guías para el análisis de datos oficiales y documentos y -entrevistas en profundidad. El proceso de categorización metodológica nos condujo a los resultados del estudio pudiendo responder positivamente a la posibilidad de identificar prácticas inclusivas. A su vez, una de las categorías emergentes más referenciadas apuntó a las prácticas inclusivas basadas en estructuras de trabajo colaborativo. Dentro ésta se diferenciaron las siguientes sub-categorías: 1) estructuras de colaboración del centro educativo con el contexto y 2) estructuras de colaboración en el centro educativo. Entre las conclusiones más relevantes resaltamos aquellas prácticas inclusivas que se apoyan en una estructura colaborativa que las soporte dando cuenta, al tiempo, de una educación más equitativa con menos fracturas y diferencias para las personas más desfavorecidas.
Hay algunos que sienten que esto les parte la cabeza. Notas sobre experiencias de Aprendizaje-Servicio en la Universidad de Buenos Aires
Authors: Kandel Veghazi Victoria Noemí 
Published: November 2023

Los debates actuales sobre la universidad y sus transformaciones, han incorporado nociones como “responsabilidad social universitaria”, “compromiso social de la universidad”, o “pertinencia de la universidad” y revisitado otras como “función social de la universidad”. Si bien no todos remiten a lo mismo y hasta pueden evidenciarse diferencias conceptuales, ideológicas, geográficas o políticas, un elemento que comparten es la necesidad de fortalecer el vínculo que la universidad entabla con su entorno. En este sentido, cobran relevancia prácticas universitarias de intervención comunitaria, tales como el voluntariado, la extensión universitaria y el aprendizaje servicio. A partir del año 2006 se han desarrollado en Argentina programas de apoyo a prácticas universitarias de aprendizaje servicio. A nivel de política pública, el Ministerio de Educación creó ese año el Programa de Voluntariado Universitario (destinado a financiar proyectos en universidades públicas), mientras que la Universidad de Buenos Aires consolidó el programa UBANEX, con similares características. En ambos casos, el objetivo consiste en otorgar financiamiento a proyectos de voluntariado universitario que articulen contenidos curriculares con el abordaje de algún problema concreto detectado en la sociedad, particularmente en ámbitos de vulnerabilidad social. Este estudio analiza cómo es recibida esta práctica al interior la Universidad de Buenos Aires. Se indagan las motivaciones de los participantes; las dificultades y obstáculos; y, finalmente, los diálogos que se inician con el resto de las actividades y funciones que habitan el quehacer universitario
Atrial fibrillation in patients with dilated cardiomyopathy: prevalence, risk factors and prognostic significance
Authors: Vaikhanskaya T. G. , Dubovik T. A. , Levdansky O. D. , Kurushko T. V. , Danilenko N. G. 
Published: November 2023

Aim. To study the epidemiological profile and long-term prognostic significance of atrial fibrillation (AF) as a risk factor for adverse clinical outcomes in patients with dilated cardiomyopathy (DCM).Material and methods. The study included 270 patients with DCM (206/76,3% men, age 47 [37; 56] years, left ventricular (LV) ejection fraction 29 [21; 35]%). The observation period was 6 years (Me 76 [57; 119] months). To assess the effect of AF on DCM prognosis, Kaplan-Meier curves and Cox regression of clinical outcomes, including cardiovascular death, heart transplantation, and ventricular assist device implantation, were analyzed.Results. Of 270 patients with DCM, paroxysmal AF was detected in 10 (3,7%) patients (initial, 5/1,85%; during the first follow-up year, 5/1,85%). After 5 years, another 65 (24,1%) individuals had AF (paroxysmal, persistent or permanent). Ventricular tachyarrhythmias were registered in 163 (60,4%) patients. Compared with patients maintaining sinus rhythm, patients with AF were older (51,4±10 vs 43,6±13 years, p=0,001) and had lower exercise tolerance (6-minute walk test: 379±45 vs 445±43 meters; p=0,0002) and a higher heart failure functional class (NYHA class III-IV: 38/50,7% vs 52/26,7%; χ2=13,6; p=0 ,0003). In patients with AF, initially more pronounced manifestations of right ventricular contractile dysfunction (TAPSE: 13,1±3,4 vs 15,5±4,6 mm; p=0,0001) and LV diastolic dysfunction (E/A: 2,9±1,5 vs 2,1±1,3; p=0,006; E/e' 15,6±6,9 vs 11,8±7,2; p=0,019), more dilated left atrium (left atrial volume index: 63,3±19 vs 50±18,7 ml/m2; p=0,006). During the 6-year median follow-up, AF was observed in 75 patients (0,46 new cases/100 patients/year). As a result of Cox regression analysis, AF as a time-dependent factor was identified as an independent predictor of cardiovascular death (hazard ratio 3,99; 95% confidence interval, 1,67-8,59; p=0,0001).Conclusion. AF, as one of the most common sustained atrial tachyarrhythmias in the population, demonstrated a lower prevalence (27,8%) in the DCM cohort compared to ventricular tachyarrhythmias (60,4%), but a high prognostic significance of the negative impact on the risk of fatal outcomes. The development of AF in patients with DCM is associated with a 4-fold increase in cardiovascular death risk over a 6-year period.
Significance of catestatin in the pathogenesis of heart failure with preserved ejection fraction in patients with non-obstructive coronary artery disease
Authors: Grakova E. V. , Kopieva K. V. , Gusakova A. M. , Smorgon A. V. , Maltseva A. N. , Mochula A. V. , Svarovskaya A. V. , Zavadovsky K. V. 
Published: November 2023

Aim. In patients with non-obstructive coronary artery disease (CAD), to evaluate the pathophysiological significance and diagnostic effectiveness of catestatin in detecting heart failure with preserved ejection fraction (HFpEF), as well as to assess the relationship of the levels of this biomarker with heart rate variability (HRV) parameters and the severity of diastolic dysfunction.Material and methods. The study included 83 patients (44 men, mean age, 62,0 [57,0; 68,5] years) with non-obstructive CAD and preserved left ventricular (LV) ejection fraction of 63 [60; 64]%). Echocardiography was performed according to a standard protocol. HRV was assessed using 24-hour electrocardiographic monitoring. Serum biomarker levels were determined using enzyme-linked immunosorbent assay.Results. Patients were divided into groups depending on HFpEF presence: group 1 (n=63) included patients with newly diagnosed HFpEF, and group 2 included patients without heart failure (n=20). Serum catestatin concentrations were 43,1% lower (p<0,001) in patients with HFpEF than in patients without it. Catestatin had a negative correlation with levels of N-terminal pro-brain natriuretic peptide and C-reactive protein. Moreover, serum catestatin values were inversely correlated with LV remodeling parameters, whereas no relationship was found with HRV values. According to ROC analysis, catestatin £132,83 μg/ml (AUC=0,884; p<0,001) were defined as threshold values associated with HFpEF.Conclusion. Decreased serum catestatin concentrations were associated with HFpEF and overexpression of heart failure and inflammation biomarkers. Moreover, serum catestatin values had a negative relationship with LV remodeling parameters, while no relationship was found with HRV values.
Desmoplakin and features of desmoplakin cardiomyopathy
Authors: Myasnikov R. P. , Kuzina N. N. , Nefedova D. A. , Kiseleva A. V. , Kulikova O. V. , Meshkov A. N. , Kudryavtseva M. M. , Mershina E. A. , Divashuk M. G. , Ryzhkova E. V. , Kharlap M. S. , Drapkina O. M. 
Published: November 2023

Inherited cardiomyopathies (CMP) are a group of heterogeneous diseases characterized by myocardial disorders that is not caused by coronary artery disease, hypertension, valvular and congenital defects. With the development of imaging methods and molecular genetic diagnostics, it has become clear that many CMPs are characterized by phenotypic and genotypic "crossover". And although the genetic component does not always determine the specific phenotype of the disease, genetic testing plays a significant role in risk stratification, determining the prognosis and management of patients, as well as conducting family screening. Considering the high diagnostic and prognostic value of genotype, novel genotype-based strategies for classifying CMP have been proposed in recent years. One example of such a genotype-specific approach is the identification of desmoplakin CMP as a separate independent clinical entity. The article presents a case of a family with a pathogenic DSP gene variant (p.Gln948LysfsTer29) identified in three generations, leading to the development of a specific CMP phenotype. A comprehensive examination was carried out. We demonstrated the stages of natural disease course, as well as management strategy for patients with desmoplakin CMP were proposed.
Pengaruh Fanatisme terhadap Perilaku Konsumtif pada Penggemar Boyband NCT
Authors: Fauziyah Salma Annisa , Nurhayati Siti Rohmah 
Published: November 2023

Fanatisme merupakan salah satu fenomena yang sering dijumpai pada penggemar K-Pop, termasuk juga pada penggemar boyband NCT. Di sisi lain, penggemar NCT juga menunjukkan perilaku konsumtif yang berlebihan. Oleh karena itu, penelitian dilakukan untuk mengetahui pengaruh fanatisme terhadap perilaku konsumtif pada penggemar boyband NCT. Penelitian ini menggunakan pendekatan kuantitatif yang menggunakan jenis penelitian korelasional. Pengumpulan data dilakukan di seluruh provinsi di Indonesia yang disebarkan secara online menggunakan tautan Google Form. Sampel penelitian menggunakan metode insidental sampling berdasarkan kriteria yang telah ditentukan. Teknik analisis data dalam penelitian ini menggunakan regresi linear sederhana. Hasil penelitian ini menunjukkan bahwa fanatisme berpengaruh terhadap perilaku konsumtif pada penggemar boyband NCT. Nilai koefisien regresi adalah 0,677 dan nilai signifikansi 0,000 (kurang dari 0,05) yang membuktikan bahwa fanatisme berpengaruh positif terhadap perilaku konsumtif pada penggemar boyband NCT. Sumbangan efektif sebesar 28,9 persen dan sisanya sebesar 71,1 persen dipengaruhi oleh faktor lain yang tidak dimasukkan ke dalam model penelitian.
Nutritional Status and Physical Activity of Elementary Students in Bandung during the Covid-19 Pandemic
Authors: Yashilva Willy , Sentani Muchamad Rizki 
Published: November 2023

Introduction: During this Covid-19 pandemic, Exercising and doing physical activity is very necessary to keep the body in shape, but students tend to do a lot of sedentary behavior because they required to stay at home. Sedentary behavior and student health are interrelated because a dangerous sedentary lifestyle increases many diseases and deaths. This study aims to identify nutritional status and physical activity of elementary students in Bandung during the Covid-19 pandemic.Methods: This study using corelational analytic with cross-sectional design. The data collection tools on this research using quisioner that divided into 2 parts. Subject research choosing based on inclusion criteria on this research are student that registered in dapodik data when the research was conducted, no suffer from chronic and congenital disease, and surely provide to be a respondent.Results: The result of the variety analytics showed nutritional status of school-aged children and 84,2 % has normal body mass index and 72,6% has normal height. Based on table 3, 49 of student do sedentary activity and 46 do moderate, 43 of student do physical activity during sport session about one time, and 2 of them not doing it at all, 50 of student sitting on their spare time, 48 of student sittting on their school break, 43 of student do physical activity after school about 2-3 times, 62 student do physical activity in afternoon about 1-3 times, 39 of student do physical activity on weekends about one times, and their parent's perception about physical activity was 1-2 times do physical activity on spare time.Conclusion: Most children have normal nutritional status, although most children behave sedentary. The results of this study are expected to be an awareness for parents and teachers to encourage children to do more physical activity because hildren who move a lot can avoid obesity and are more fit, especially during this Covid-19 pandemic..
Pengaruh kondisi sosial dan ekonomi keluarga terhadap tingkat pendidikan anak di Desa Kentol, Nusa Tenggara Timur
Authors: Saida Ermelinda Kurnia , Suprianto Agung , Jayanti Mustika Arif 
Published: November 2023

Tingkat pendidikan seorang anak dapat dipengaruhi oleh berbagai faktor, di antarannya adalah kondisi sosial dan ekonomi. Desa Kentol, Kabupaten Manggarai merupakan desa dengan minat pendidikan anak yang masih rendah. Melihat hal tersebut, peneliti melakukan penelitian dengan tujuan untuk mencari tahu apakah ada pengaruh antara status sosial dan ekonomi pada tingkat pendidikan anak di Desa Kentol. Metode dalam penelitian menggunakan kuantitatif dengan pendekatan statistik inferensial. Pengumpulan data dalam penelitian ini melalui observasi, kuesioner, dan dokumentasi dengan populasi seluruh masyarakat Desa Kentol yang anaknya dalam jenjang pendidikan yang berjumlah 204 orang. Pengambilan sampel menggunakan metode Proportionate Stratified Random Sampling. Teknik analisis data yang digunakan yaitu analisis regresi linier berganda dengan menggunakan software SPSS. Pengujian hipotesis menggunakan uji F (Simultan) bermaksud untuk mengetahui pengaruh dari masing-masing variabel dan uji T (Parsial) dengan maksud untuk mengetahui dampak dari dua variabel yang diuji secara bersama. Hasil penelitian menunjukkan bahwa status sosial berdampak terhadap tingkat pendidikan anak 0,2 persen dan status ekonomi 6,3 persen, sedangkan untuk sisanya disebabkan oleh faktor lain yang tidak termasuk dalam penelitian ini.
COMPARISON OF CONVENTIONAL AND DIGITAL TECHNOLOGIES FOR MAKING THE EAR EPITHESIS
Authors: Murashov Mikhail , Stepanova Svetlana , Platonova Maria , Grindenko Sofia , Derezina Sofia 
Published: November 2023

Subject. Digital and conventional technologies for the making of ear epitheses.
Objectives. To compare different methods of making ear epithesis according to the following criteria: timing, accuracy, ergonomics.
Methodology. The study was carried out in Department of Propaedeutics and Prosthetics Technologies in Dentistry of DF, at the Moscow State University of Medial Dentistry named after A.I. Evdokimov. The students – volunteers' auricles were scanned with three different smartphone apps, two intraoral scanners and a facial scanner.
Results. The 3D image obtained using a smartphone camera is comparable to models obtained using facial scanners, and the scanning process is simple and does not require special skills. Facial scanners are expensive equipment that require careful maintenance and certain skills for proper operation. Intraoral scanners are not initially designed for the production of facial epitheses; they partially capture the surface of interest, which requires operator intervention, which eliminates the accuracy of the manufactured structure. The conventional method is the least ergonomic, labor-intensive and requires professional competencies and skills in modeling the complex anatomy of epitheses.
Conclusion. The most user friendly for making the ear epithesis was smartphone scanning, because in this case required minimal intervention by a operator for finishing the image of 3D copy healthy auricle of the patient.
RATIONALE FOR THE USE OF DORZALLY TILTED DISTAL ARTIFICIAL SUPPORTS FOR EXTENDED IMPLANT PROSTHESES IN ELDERLY PATIENTS
Authors: Parshin Yuriy , Mishnev Maksim , Trezubov Vladimir , Rozov Roman 
Published: November 2023

The subject of the research is implant prosthetics.
The goal is to increase the efficiency of implant prosthetics by optimizing the design of the prosthesis.
Methodology. 131 patients (57 men and 74 women) aged from 60 to 82 years (mean age 68.3 ± 7.3 years) were examined.
The patients were divided into 3 groups: group 1 – 36 patients (14 men and 22 women with an average age of 70.1 ± 5.4 years) with vertical distal implants without dorsal weight; group 2 – 44 people (19 men, 25 women with an average age of 69.4 ± 7.2 years) with inclined distal implants without dorsal weight; group 3 – 51 people (24 men and 27 women with an average age of 68.4 ± 6.8 years) with inclined distal implants, which also carried the dorsal body of the prosthesis with unilateral support on them.
The condition of the peri-implant bone was assessed using 16 criteria obtained using clinical and instrumental research methods. The study of the distributions and magnitude of elastic stresses in the peri-implant bone was carried out using mathematical modeling using finite elements.
Results. Identical results were obtained for the reaction of the peri-implant bone and mucous membrane of the peri-implant cuff, as well as the levels of preservation of implants and implant prostheses in the long term (2–3 years) in patients with different configurations of the distal parts of extended implant prostheses. Mathematical modeling by the finite element method also showed the non-criticality of the distribution of elastic stresses in the prosthesis, distal implant, compact and cancellous bone with different configurations of the distal parts of the prosthesis.
Conclusion. Inclined implants, including those with additional load in the form of a dorsal body with unilateral support, can be quite widely used in elderly patients.