bluuebunny/crossref_metadata_2025 huggingface dataset:
Recommendation Systems using Graph Neural Networks
Authors: Khanna Dhairya , Bhushan Rishabh , Goel Khushboo , Narang Dr. Sudha
Published: January 2023

Abstract: On the internet as the technology improves, the number of choices is overwhelming due to which there is need to filter, prioritize and efficiently deliver relevant information in order to alleviate the problem of information overload, which has created a potential problem to many Internet users. Recommender systems solve this problem by searching through large volume of dynamically generated information to provide users with personalized content and services. Recently, graph neural network (GNN) techniques have been widely utilized in recommender systems since most of the information in recommender systems essentially has graph structure and GNN has superiority in graph representation learning. This paper aims to provide a comprehensive application of GNN-based recommender systems.
Adoption of Blockchain Technology in Education: Application & its Challenges
Authors: Jain Deepanshu , Garg Ayush , Khosla Tejna , Saini Vinay Kumar
Published: January 2023

Abstract: Blockchain Technology has other applications outside of Bitcoin. This technology has the potential to be used in a variety of industries, including education, finance, insurance, healthcare etc. This article not only provides a broad overview of Blockchain Technology, but also provides descriptions of how it could be used in educational institutions. School records management, such as validation and transfer of student transcripts, degrees, test scores and records, including those related to college admissions; educator credentialing/certification/re-certification; management and tracking of school assets, such as buses, library books; management of student privacy and parental permissions.
Healthcare Monitoring System Using IOT
Authors: Nakhale Aryan , . Kunal , Tiwari Abhishek , Choudhary Chahil , Garg Vansh
Published: January 2023

Abstract: The last ten years have seen a shift in the healthcare monitoring systems, making them one of the most major systems. Even though there are millions of medical facilities worldwide, it is challenging to attend to each and every patient, primarily those with diseases like Covid-19 and Hepatitis B. It is practically impossible to monitor the conditions of those patients due to a concern of infection. Without quality monitoring, it is impossible to keep track of patients' conditions. To improve patient care, the present invention discloses the design and development of a reliable and consistent patient monitoring system that allows medical professionals to monitor their patients while they are either in a hospital or at home.
Development of Gastro-floating drug delivery system by 3D Printing: Impact of formulation and design on the release profile of Baclofen
Authors: Abdulkhaleq Nuha Mohammed , Ghareeb Mowafaq M.
Published: January 2023

Objectives: Baclofen is a skeletal muscle relaxant with a short half-life and a narrow absorption window in the upper part of the gastrointestinal tract, and this study aims to formulate a sustained-release tablet of baclofen and 3D printing of gastro-floating device and study the effect of various polymers and device design on the release profile of baclofen.

Method: Firstly, four formulas were produced through the hot-melt extrusion and direct compression of the extrudate to produce 30 mg baclofen tablets, then four gastro-floating devices (A, B, C, and D) were designed with two air pockets to enable the floating of the device and have drug-releasing windows with total surface area 4, 10, 20, and 40 mm2 respectively, for drug release. 3D printing of the devices was done by an FDM printer and the tablets were inserted into each device and test it for drug release.

Results: Decreasing the surface area of the drug releasing windows revealed a significant reduction in the dissolution of baclofen irrespective of the type of polymers and useful for sustained release formulation but may be associated with lag time. Devices with one and two releasing windows (Device B and C respectively) sometimes revealed similar dissolution profiles and this related to the position of the window regarding the surface of the dissolution media. Device D with four windows and a 40 mm2 surface area was found to produce more reliable results. F3 which contains Eudragit RS-100 as the main polymer showed sustained release in device D where the complete dissolution of the drug occurred in 12 hours, and the gastro-floating device remained floating all the time and was assayed for drug content, FT-IR, and DSC study.

Conclusion: Hot-melt extrusion was successfully employed to produce sustained release tablets of baclofen. FDM 3D printers are considered a potential tool to produce gastro-floating devices with the required design and release profile.
Impacto del confinamiento por Covid-19 en los niveles de concentración de CO2 al interior de la vivienda de tipo social en Chile
Authors: Guíñez-Viveros Roxana , Bobadilla-Moreno Ariel , Muñoz-Viveros Cristián Alberto
Published: January 2023

More than ever before, the COVID-19 crisis and the need to spend longer periods of time in our places of residence, have highlighted the need to improve indoor air quality (IAQ) and ventilation to reduce the risks of airborne virus transmission. Added to the need to progressively improve the energy performance of our buildings to achieve carbon neutrality is this completely contrary new requirement, which forces reconsidering the ventilation issue, its standards, and technological solutions to improve IAQ and limit the risks of contagion inside our homes, without losing sight of the goals that climate change imposes on us. Chile is seeking strategies to generate sustainable, energy-efficient, and comfortable housing, which must be reconsidered in light of Covid-19. Greater permanence inside the home revealed the precariousness of the lifestyles the most vulnerable families face; sometimes exposing them to environments that are risky for their health. The objective of this research was to estimate the impact of Covid-19 on CO2 indoor air concentrations, as a result of the intensity of use (occupation) of the home, considering envelopes with different levels of airtightness. Using an experimental methodology, based on simulations with the DesignBuilder software, the CO2 concentrations of four types of social housing, located in the commune of Coronel, Biobío, Chile, were quantified. The results showed that confinement increased CO2 levels by 16.4%, while the change from the original condition of the envelope to more airtight levels generated an increase of more than 83% in normal use and 97% for periods of confinement.
Job performance predictors in a group of information and communication technology specialists
Authors: Berga Linda , Austers Ivars
Published: January 2023

Based on the theory of person-environment fit, non-cognitive predictors of job performance were studied in a group of information and communication technology (ICT) specialists. From various potential job and training performance predictors seven psychological attributes (personality, vocational interests, grit, growth mindset, self-efficacy, goal orientation and resistance to change) were chosen and tested as predictors of job performance ratings, as provided by either the supervisor or the study participant. The results indicate that grit, vocational interests, and resistance to change predict job performance in this group of ICT specialists. This study adds to the scientific literature of grit and vocational interests as non-cognitive predictors of job performance. Implications for practice include the recommendation of using grit and vocational interests in personnel management processes such as personnel selection or placement.
Relationship Between Family History Knowledge, Identity Style and Resilience of 16-19 Year Old Adolescents
Authors: Siliniece Sandra , Miltuze Anika
Published: January 2023

The aim of the present study was to examine the relationships between family history knowledge, identity style and resilience of 16–19 year old adolescents. Participating in the study were 110 adolescents (75% female, 25% male), ages 16–19 year (M = 17,62; SD = 1,23). They completed the Do You Know scale (Duke, Lazarus & Fivush, 2008), the Identity Style Inventory (Berzonsky, 1992) and the Resilience Scale for Adults (Friborg et al., 2005). The results showed positive associations between knowledge of family history and informational, normative identity style and resilience; and negative association with diffuse identyty style. Knowledge of family history predicted identity style and resilience, with the exception of the social resource factor ratings. Relationships with mother predicted the resilience factors of self-perception, family cohesion and social resources. The internal resource factor of resilience provided partial mediation between knowledge of family history and informative identity style.
Childhood Trauma, Trauma Symptoms, Family Fat Talk in Relation to Adolescent Eating Behavior
Authors: Zomerfelde Gita , Pirsko Laura
Published: January 2023

The aim of the study was to examine whether childhood traumatic experience, trauma symptoms, and family discussions about obesity are associated with adolescent eating behavior. In addition, the study examined gender differences. Participating in the study were 726 adolescents (369 – girls, 344 – boys, 13 – no specific gender) aged 11 to 16. They completed the following questionnaires: Childhood Trauma Questionnaire (Fink et al., 1995); Trauma Symptom Checklist for Children (Briere, 1995); Eating Attitudes Test (Garner et al., 1982); Family Fat Talk Questionnaire (Macdonald et al., 2015). The results showed positive associations between perceived altered eating behaviors and emotional and sexual abuse, depressive and dissociative symptoms, personal and family talk about obesity. Personal conversations about obesity predicted 21% of the variation of the adolescent’s perception of altered eating behavior. The addition of emotional abuse and dissociative symptoms in the regression model increased the explained variance to 25%. Girls reported significantly higher ratings on the study variables.
Escala de Alimentación Emocional y su relación con sexo, edad y peso corporal en mexicanos
Authors: Maza-Pérez Beatriz Guadalupe , Pérez-Sánchez Lucía , González-Castillo Sandra
Published: January 2023

El objetivo principal de este estudio fue describir las dimensiones de la escala de Alimentación Emocional de Rojas y García-Méndez, evaluar las diferencias entre hombres y mujeres en alimentación emocional, así como conocer si existe relación entre alimentación emocional con la edad y el peso en población mexicana. Participaron 580 adultos (83% mujeres y 17% hombres) entre 18 y 56 años (M=36.41, DE= 10.89). La medición se realizó a través de la Escala de Alimentación Emocional y su relación con las variables sociodemográficas descritas. Con relación al sexo, son las mujeres quienes mayormente regulan la intensidad o duración de sus emociones por medio de la comida; los hombres muestran mayor cambio en el estado de ánimo antes, durante y después de comer. En las dimensiones familia, indiferencia y cultura, no hay diferencia entre sexo. Con relación al peso, la variable se relaciona de manera positiva con las dimensiones emoción, indiferencia y cultura, mientras que la edad mantiene relaciones negativas con efecto del alimento.
Exploring Women's Retirement Literature through Bibliometric Analysis Using VOSviewer
Authors: N.E.A Mohamad , H.A. Zainuddin , Rajadurai Rajadurai , J. J. , Sapuan N.M. Sapuan N.M.
Published: January 2023

This paper aims to analyse the issue of women’s retirement (WR) literature through bibliometric analysis using VOSviewer, a programme for the visualisation of similarities (VOS). Publications focusing on women’s retirement were compiled from the Scopus database, with a total of 393 items spanning the years 1965 to 2021. The most prolific nations for retirement literature are the United States, United Kingdom, and Sweden, which reflects the affiliation analysis that correlates highly with published papers within specific institutions in those three countries. The issues were discussed within the context of social sciences, economics, econometrics, and finance, as well as psychology. This suggests an interlinking of women’s retirement with social and financial issues that might contribute towards psychological challenges for women. The most cited keywords, among others, are ‘retirement’, ‘women’ and ‘pension’, with thematic clusters being linked to ‘ageing’ and ‘health’. These could be linked to health problems that emerge because of ageing, and thus might be linked to the retirement wellbeing of women. The findings of this paper shed light on several implications that can be used as a guideline for researchers and act as a foundation before embarking on the emerging knowledge areas of women’s retirement.
Etnografia de documentos sobre violações de direitos humanos e trabalho escravo no Rio Negro - AM.
Authors: Menezes Elieyd Sousa de
Published: January 2023

Desde 2002 várias denúncias sobre trabalho escravo e violações de direitos humanos nos piaçabais do Rio Negro foram realizadas pelas famílias dos trabalhadores extrativistas que estavam imobilizados pela dívida com algum “patrão”. A partir de uma análise documental, bibliográfica e arquivística foi possível a construção de uma etnografia dos documentos sobre essa situação social. O objetivo deste artigo é apresentar a genealogia do processo de judicialização das denúncias sobre trabalho escravo no Rio Negro, atentando para os seguintes questionamentos: Como começou o referido processo de judicialização. Qual o andamento desse processo. Como as denúncias foram recebidas no município e quais os impactos disso nas relações sociais ali estabelecidas. Para responder esses questionamentos foi necessário a leitura e análise do Inquérito Civil 1.13.000.002364/2013-43 levantados no Ministério Público Federal no Amazonas (MPF-AM). A agência dos documentos fez com que o Estado produzisse, por meio do MPF e MPT, ações para garantir os direitos desses trabalhadores extrativistas. A disposição e ordenação desse material documental conta uma história que por séculos foi silenciada, neste caso, a imobilização da força de trabalho de povos indígenas e trabalhadores extrativistas na Amazônia.
A influência do empresariado na educação pública nacional: as estratégias do capital para definir um novo projeto de sociedade.
Authors: Mateus Kergilêda Ambrósio de Oliveira , Santana Anne Cisera Teixeira de , Santos Giane Souza dos
Published: January 2023

Esse artigo objetiva discutir as influências do empresariado na educação pública nacional, evidenciando como no atual contexto da política neoliberal, essa ação é agravada pelas investidas e estratégias dos organismos internacionais e como os intelectuais e grupos conglomerados tem exercido o poder hegemônico. As reflexões sobre essa temática foram suscitadas durante o percurso da disciplina Organização do Trabalho Pedagógico, do Mestrado Acadêmico em Ensino PPGEn, da Universidade Estadual do Sudoeste da Bahia-UESB. A perspectiva de análise é o materialismo histórico e dialético. O presente artigo foi dividido em cinco seções: Introdução, Neoliberalismo e Educação, Relação do Empresariado e Educação, Por fim uma Base Nacional Comum Curricular e Conclusões Preliminares.
Uma revisão da atuação das Agências Internacionais na educação brasileira
Authors: Mendonça Samuel , Piovesana Gabriel Franco
Published: January 2023

O estudo apresenta uma discussão sobre a influência de quatro organismos internacionais no cenário educacional mundial e, mais especificamente, para a educação brasileira. Foi resultado de uma pesquisa dirigida pelo grupo “Política e Fundamentos da Educação” e trata de uma revisão crítica de literatura realizada nas bases de dados Biblioteca Digital Brasileira de Teses de Dissertação, SciELO e Portal de Periódicos da CAPES. Contempla-se que, historicamente, a educação brasileira tem recebido influência de prescrições educacionais internacionais que veiculam princípios formativos ressignificados sob a ótica de uma pedagogia favorável ao neoliberalismo. Nesse cenário, desde 1930, a política educacional brasileira tem se voltado para reformas que associam três princípios mercadológicos – a saber: eficiência, eficácia e produtividade – a documentos balizadores de sua conjuntura, tal qual a Base Nacional Comum Curricular. Consequentemente, debate-se uma subordinação da educação às necessidades momentâneas e transeuntes do sistema capitalista que, ao perpassar por momentos de crise ou de remodelações internas, incumbe setores e países em reformas estruturais e fundamentais a fim de se sustentar. À educação, os séculos XX e XXI reservaram mudanças significativas que cambiaram sua perspectiva em direção à aprendizagem flexível e à qualidade educacional respaldada por avaliações em larga escala, evadindo princípios constitucionais primordiais no caso brasileiro.
Grazing effects on total carbon and nitrogen content of wind-eroded soils in desert steppe
Authors: Zhang Bohan , Lv Shi-jie , Qu Zhiqiang , Han Guodong , Gao Cuiping , Wilkes Andreas , Li Junran , Wang Shuhui , Wang Rong , Wang Xiaoyan , Bai Yisula , Li Zhiguo
Published: January 2023

A high stocking rate can intensify wind erosion in grasslands, and
strong wind can carry away soil surface particles and their nutrients,
which leads to soil barrenness. In this research, the dust flux, total
carbon (TC) and total nitrogen (TN) contents and fluxes of aeolian
sediment were computed in the non-growing season (mid-October to
mid-April of the following year) and growing season (mid-April to
mid-October) from 2018 to 2020 at a long-term grazing gradient
experiment platform and wind-erosion monitoring experiment in a desert
steppe in Inner Mongolia, China. The results were as follows, 1) with
the increasing of stocking rate, the fluxes of aeolian sediment at 10 cm
(H10), 30 cm (H30), and 100 cm (H100) were greatly increased (
P<0.05). Aeolian sediment fluxes followed the order
control (CK) < light stocking rate (LG) < moderate
stocking rate (MG) < heavy stocking rate (HG). 2) TC and TN
contents of aeolian sediment reflected stocking rates and followed the
order CK>LG>MG>HG, and also
reflected aeolian sediment collection height, as
H10P>0.05). TC and TN contents in HG at different heights
reduced by 31.1% and 25.9% on average in comparison to the CK in the
non-growing season, and by 30.1% and 25.0% in the growing season. TC
loss was higher than TN loss. Overall, as stocking rate increased, wind
erosion increased, leading to the loss of soil nutrients and significant
loss of the carbon pool in this desert steppe.
Comparative genome anatomy of the male and female silver arowanas provides an improved understanding of sex-determination mechanisms in teleosts
Authors: Bian Chao , Liu Yi , Yang Yexin , Ma Ka Yan , Wang Yuanyuan , Liu Chao , Ouyang Guochang , Xu Meng , Sun Jinhui , Changwei Shao , Li Ruihan , Wang Xuejie , Chen Jiehu , Shi Qiong , Mu Xidong
Published: January 2023

Silver arowana, Osteoglossum bicirrhosum, is sexually monomorphic, and
its sex determination mechanism is poorly understood, which has been a
major hurdle in its captive breeding. To this end, we assembled two
high-quality chromosome-level genomes for each sex of silver arowana,
with chromosome N50 of 10.6 Mb and 10.4 Mb in female and male,
respectively. Combing re-sequencing data of 109 individuals, we
identified two sex-specific SNPs and confirmed a ZW model of
sex-determination in this species. Both sex-specific SNPs are located in
about 26Kb upstream of foxl2 gene. Since foxl2 has been confirmed to be
differentially expressed in the gonads of silver arowana, it probably
plays an important role in sex determination via the cross-regulation
with auxiliary genes significantly correlated to it, such as dmrt1,
sox8a and cyp11a1, etc. The sex chromosomes are homomorphic with a
potentially recent origin, as linkage disequilibrium analysis showed
minor recombination suppression. Overall, we developed accurate
molecular markers for sex identification of silver arowana in each
developmental stage, subsequently improving the reproductive efficiency
and further promoting the industrial development.
El dengue en las familias de los barrios de la comuna cuatro de Villavicencio, Colombia
Authors: Moreno-Giraldo Ingrid Camila , Reyes-Cubillos Paula Andrea
Published: January 2023

Introducción: el dengue es una infección vírica transmitida por la picadura del Aedes aegypti hembra, que afecta a toda la población sin distinción alguna. Objetivo: identificar la percepción de las familias de la comuna cuatro del municipio de Villavicencio, Meta, respecto al manejo del dengue en su entorno familiar. Materiales y métodos: estudio descriptivo, transversal con variables cualitativas y cuantitativas, con aplicación de una encuesta sociodemográfica y de conocimientos, actitudes y prácticas sobre el dengue a las familias de la comuna cuatro de Villavicencio. Resultados: se encuestaron 317 familias, el sexo femenino tuvo mayor participación, se encontró un porcentaje considerable de población que no tiene conocimientos suficientes sobre el dengue, aun así, las familias desarrollan prácticas en prevención. La participación de actividades comunitarias para la prevención es muy poca, se evidencia que entre mayor escolaridad más eficientes son las prácticas empleadas por las familias de la comuna. Conclusiones: se evidencia intervención de primer nivel mediante acciones de autocuidado familiar, lideradas por las mujeres; sin embargo, se encuentra un porcentaje significativo de riesgo y de no adherencia a la participación de actividades en conjunto con la comunidad. Esto indica la necesidad de implementar estrategias de prevención del dengue y promoción del autocuidado.
The Effect of Sectorial Contributions to GDP on Environmental Degradation: A Verification of the Environmental Kuznets Curve Hypothesis in Nigeria
Authors: Falade Olanipekun Emmanuel , Adeyemi Williams Owolabi
Published: January 2023

This paper empirically verifies the validity of the Environmental Kuznets Curve (EKC) hypothesis in Nigeria by focusing on the relationship between key sectors of the Nigerian economy and environmental degradation. The study adopted the Autoregressive Distributed Lag (ARDL) model using time series data for the period 1981-2018. The bounds-testing approach proposed by Pesaran, Shin and Smith, (2001) was adopted to test for cointegration. The results show a long-run relationship between economic growth (disaggregated into key sectors) and environmental degradation measured by carbon dioxide emissions. In the short run, agriculture, industry and services sectors significantly explained the variation in carbon dioxide (CO2) emissions, while the construction sector does not have any significant effect on Carbon emissions both in the current and the future periods. Specifically, the industrial sector has a positive effect on CO2 emissions which confirms the short-run EKC hypothesis; while agriculture and services though were significant, have a negative effect on CO2 emissions, invalidating the short-run EKC hypothesis. In the long run, industry and services sectors were significant in explaining variation in CO2 emission. However, while the services sector shows a negative relationship with CO2 emission in line with the long-run EKC Hypothesis, the industrial sector invalidates the hypothesis with a positive effect. These results imply that the key sectors of the economy have varied effects on environmental degradation, hence the hypothesis is inconclusive. Nigeria is therefore advised to pursue economic growth via industrial and services sectors with an emphasis on environmental sustainability, which could be achieved through the use of renewable and cleaner technology in nation-building.
Going against the flow: Motivations of professionals with critical views on vaccination
Authors: Elisha Ety , Guetzkow Josh , Shir-Raz Yaffa , Ronel Natti
Published: January 2023

T he controversy over vaccines has persisted since their introduction in the
eighteenth century. While many studies have addressed the concerns and
motivations of the general population regarding hesitation and resistance to
vaccination (especially parents, concerning routine childhood immunization),
the present study was designed to examine this issue among professionals
from a victimological perspective, thus its uniqueness. Study participants
were researchers and practitioners involved with vaccines who hold a
critical position on vaccines and their ways of dealing with what they
perceived as suppression of dissent in the field of vaccination. The
motivations identified among the researchers and practitioners in our study
referred to ethical aspects of professional obligation to patients, patient
rights, freedom of choice, and lack of trust in the medical establishment.
The participants also perceived themselves as victims of suppressive tactics
due to their critical position, to which they responded in two contrasting
ways: continuing to dissent while insisting on their right to have their
voices heard or abandoning their public dissent due to the reactions and
repercussions they faced. The article discusses the implications of these
findings in the context of scientific integrity, violation of democratic and
ethical values, freedom of speech, and its impact on the public?s trust in
science and medicine.
ELEVATED ADIPOCYTE MEMBRANE PHOSPHOLIPID SATURATION DOES NOT COMPROMISE INSULIN SIGNALING
Authors: Palmgren Henrik , Petkevicius Kasparas , Bartesaghi Stefano , Ahnmark Andrea , Ruiz Mario , Nilsson Ralf , Löfgren Lars , Glover Matthew S. , Andréasson Anne-Christine , Andersson Liselotte , Becquart Cécile , Kurczy Michael , Kull Bengt , Wallin Simonetta , Karlsson Daniel , Hess Sonja , Maresca Marcello , Bohlooly-Y Mohammad , Peng Xiao-Rong , Pilon Marc
Published: January 2023

Increased saturated fatty acid levels in membrane phospholipids have been implicated in the development of metabolic disease. Here, we tested the hypothesis that increased saturated fatty acid (SFA) content in cell membranes negatively impacts adipocyte insulin signaling. Pre-adipocyte cell models with elevated SFA levels in phospholipids were generated by disrupting the ADIPOR2 locus, which resulted in a striking two-fold increase in SFA-containing phosphatidylcholines and phosphatidylethanolamines, which persisted in differentiated adipocytes. Similar changes in phospholipid composition were observed in white adipose tissues isolated from the ADIPOR2 knockout mice. The SFA levels in phospholipids could be further increased by treating ADIPOR2-deficient cells with palmitic acid and resulted in reduced membrane fluidity and endoplasmic reticulum stress in mouse and human pre-adipocytes. Strikingly, increased SFA levels in differentiated adipocyte phospholipids had no effect on adipocyte gene expression or insulin signaling in vitro. Similarly, increased adipocyte phospholipid saturation did not impair white adipose tissue function in vivo, even in mice fed a high saturated fat diet at thermoneutrality. We conclude that increasing SFA levels in adipocyte phospholipids is well tolerated and does not affect adipocyte insulin signaling in vitro and in vivo.
Analytical Estimation of the Natural Oscillation Frequency of a Planar Lattice
Authors: Kirsanov M. N.
Published: January 2023

Introduction. A new scheme of a flat statically determinate regular lattice is proposed. The lattice rods are hinged.

   The study aims at deriving a formula for the dependence on the number of panels of the first natural oscillation frequency of nodes endowed with masses, each of which has two degrees of freedom in the lattice plane. The rigidity of all rods is assumed to be the same, the supports (movable and fixed hinges) — nondeformable.

   Another objective of the study is to find the dependence of the stresses in the most compressed and stretched rods on the number of panels in an analytical form.   Materials and Methods. An approximate Dunkerley’s method was used to determine the lower bound for the lattice natural frequency. The lattice rigidity was found in analytical form according to Maxwell-Mohr formula. The rod stresses and the reactions of the supports were determined from the equilibrium equations compiled for all lattice nodes. Generalization of the result to an arbitrary number of panels was performed by induction using Maple symbolic math operators for analytical solutions to a number of problems for lattices with different number of panels.   Results. The lower analytical estimate of the first oscillation frequency was in good agreement with the numerical solution for the minimum frequency of the oscillation spectrum of the structure. Formulas were found for the stresses in four most compressed and stretched rods and their linear asymptotics. All required transformations were made in the system of Maple symbolic math.   Discussion and Conclusions. The obtained dependence of the first frequency of lattice oscillations on the number of panels, mass and dimensions of the structure has a compact form and can be used as a test problem for numerical solutions and optimization of the structure.
Study on Processing Grinding Sludge Conglomerates in Devices with a Rotating Electromagnetic Field
Authors: Lebedev V. A. , Schirin A. A. , Koval N. S. , Vernigorov Yu. M.
Published: January 2023

Introduction. The key stages of sludge processing technology are the destruction of conglomerates into metal and non-metal components, as well as the grinding of component particles to obtain secondary raw materials of the required granulometric composition. The use of a rotating electromagnetic field for processing grinding sludge makes it possibleto exclude the application of various means of destruction and grinding, avoiding contact interaction of agglomerates and the walls of the working chamber. Thus, the material consumption of technical means is reduced, and the efficiency of the destruction process is increased.

   The study aimed at establishing the features and basic patterns of sludge waste processing in devices with a rotating electromagnetic field.   Materials and Methods. For the research, grinding sludge was used, which was a collection of conglomerates of arbitrary shape, consisting of 80-85 % of metal chips. An induction method was applied based on establishing the connection of the EMF induced in an induction sensor and the magnetic induction of a rotating electromagnetic field. The influence of induction on the nature of interaction between sludge particles in a rotating electromagnetic field was evaluated by changing the relative EMF signal induced in an inductive sensor.   Results. As a result of experimental studies conducted using the induction method, it has been found that the dynamic characteristics of sludge waste conglomerates depend on the induction of a rotating field to a certain value. With an increase in the size of sludge conglomerates, with the same size of ferromagnetic particles entering it, the magnitude of the magnetic field induction required for their destruction decreased. With a decrease in the particle size of conglomerates, the field induction required for the destruction of conglomerate bonds increased. An increase in the number of particles in the conglomerate reduced the value of induction. The degree of destruction of the conglomerate and the grinding of its ferromagnetic particles depended on the duration of the rotating electromagnetic field induction.   Discussion and Conclusions. The proposed induction method makes it possible to investigate the influence of electromagnetic field parameters on the change in the state of the magnetic vibrating layer, as well as to evaluate the kinematic characteristics of ferromagnetic medium particles in the magnetic vibrating layer.
Calculation of Angular Coordinates for the Control System of a Two-Link Industrial Robot Manipulator
Authors: Glushko S. P.
Published: January 2023

Introduction. One of the tasks of two-link manipulators of industrial robots that move the end-effector along complex trajectories (e.g., robot welder) is associated with the need for careful programming of their movement. For these purposes, manual programming methods or training methods are used. These methods are quite labor-intensive, and they require highly qualified service personnel. A possible solution to the problem of programming the manipulator movements is the simulation of motion with the calculation of angular coordinates. This can help simplify the geometric adaptation of the manipulator in the process of debugging the control program.

   Therefore, this work aimed at calculating coordinates for programming the control system of a two-link manipulator operating in an angular coordinate system and moving the end-effector along a complex trajectory (e. g., when welding car bodies).   Materials and Methods. A two-link robot manipulator designed for cyclically repeating actions in an angular coordinate system was considered. The manipulator consisted of two rotating links: “arm” and “elbow”, which were fixed on the base. The base could rotate, which provided a third degree of freedom. This configuration increased the working area of the manipulator and minimized the area for its placement in production. The movement of the manipulator end-effector could be performed if the kinematics provided its positioning along three Cartesian and three angular coordinates. For software control of robots, including welding robots operating in an angular coordinate system and performing the movement of the end-effector along a complex trajectory, it was required to calculate the angular coordinates of the movement of the end-effector of a two-link articulated manipulator. The robot control system should determine the position of the tool in the angular coordinate system, converting it for user friendliness into x, y and z coordinates of the Cartesian coordinate system.   Results. The relations of angular and Cartesian coordinates have been obtained. They can be used for calculating when programming the control system of a two-link manipulator of an industrial robot and organizing the exchange of information between the user and the control system, as well as for checking the accuracy and debugging the movement of the end-effector of an industrial robot through feedback.   Discussion and Conclusion. The presented results can be used for software control of a welding robot operating in an angular coordinate system and performing a complex trajectory of the end-effector of a two-link articulated manipulator (gripper). A manipulator operating in an angular coordinate system can be used for contact spot welding when moving the end-effector along a complex trajectory using a positioning or contouring control system. These systems control the movement of the end-effector along a given trajectory with the help of technological commands.
Study on the Relevance of Robotics Technology
Authors: Yadrovskaya М. V. , Gurin I. V.
Published: January 2023

Introduction. Robotic technologies serve as an important indicator of the technological and economic state of the country, they also affect the lives of individuals. Their development is a promising and urgent task affecting many aspects of the life of modern society. Currently, robotics is going through another stage of development, which has its own characteristics, new directions.

   The work aims at analyzing the situation and ways of development of this industry in the world and in our country, as well as the attitude of people to the use of robotic systems and their willingness to improve them.

   The topic under consideration is understudied.   Materials and Methods. In the presented work, the historical aspects of the formation of unique robotic technologies are defined, the ratio of the number of manufacturers and consumers of robotic products in the world is specified, the areas of the robotic technology application are named. The central place in the research is given to the results of an online survey conducted by the authors. Its statistical analysis made it possible to study, using specific data, the factors that influence the spread of robotic systems and robotic technologies and contribute to them.   Results. The survey results, on the one hand, showed a high assessment of the prospects of robotic systems given by the respondents, and confirmed that young people have an interest in robot-making technologies. On the other hand, they allowed us to note the high level of knowledge in the field of robotic technologies among engineering students and the presence of more than elementary knowledge of these technologies among representatives of other special fields. In the opinion of the authors, there are all prerequisites for the further successful development of these technologies.   Discussion and Conclusions. The analysis of the use of robotics in the world and in our country, as well as the results of the survey conducted by the authors, enable to conclude that these technologies are developing and will continue to develop actively, and the interest of current students in this, confirmed by the answers to the questionnaire, will contribute to the wider introduction of robots into the lives of future generations.
Determinants Factors in Predicting Life Expectancy Using Machine Learning
Authors: Kouame Amos B. , Smirnov I. V.
Published: January 2023

Introduction. Life expectancy is, by definition, the average number of years a person can expect to live from birth to death. It is therefore the best indicator for assessing the health of  human beings, but also a comprehensive index for assessing the level of economic development, education and health systems . From our extensive research, we have found that most existing studies contain qualitative analyses of one or a few factors. There is a lack of quantitative analyses of multiple factors, which leads to a situation where the predominant factor influencing life expectancy cannot be identified with precision. However, with the existence of various conditions and complications witnessed in society today, several factors need to be taken into consideration to predict life expectancy. Therefore, various machine learning models have been developed to predict life expectancy.

   The aim of this article is to identify the factors that determine life expectancy.   Materials and Methods. Our research uses the  Pearson  correlation coefficient  to assess correlations between indicators, and we use multiple linear regression models,  Ridge regression, and Lasso regression  to measure the impact of each indicator on  life expectancy .  For model selection, the Akaike information criterion, the coefficient of variation and the mean square error were used. R2 and the mean square error were used.   Results. Based on these criteria, multiple linear regression was selected for the development of the life expectancy prediction model, as this model obtained the smallest Akaike information criterion of 6109.07, an adjusted coefficient of 85 % and an RMSE of 3.85.   Conclusion and Discussion. At the end of our study, we concluded that the variables that best explain life expectancy are adult mortality, infant mortality, percentage of expenditure, measles, under-five mortality, polio, total expenditure, diphtheria, HIV / AIDS, GDP, longevity of 1.19 years, resource composition, and schooling. The results of this analysis can be used by the World Health Organization and the health sectors to improve society.
Passive periodic motion of an asymmetric spring loaded inverted pendulum hopping robot
Authors: Ni Y. , Meng X.
Published: January 2023

For improving the energy efficiency of hopping robot, an asymmetric spring loaded inverted pendulum hopping model with leg mass is considered. The period orbit problem of two-legged hopping robot is investigated. Firstly, the hybrid dynamic model is constructed. Then the passive hopping gaits are found using quasi-newton optimization method. Secondly, a PD controller is implemented to track the desired pitch trajectory of the body. Through applying control during stance phase, period orbits of the robot with offset body mass is obtained. Finally, the effect of the location of the leg mass and the body mass on hopping performances is investigated.
An Image Processing Framework for Breast Cancer Detection Using Multi-View Mammographic Images
Authors: Nada Fitrieyatul Hikmah  , Tri Arief Sardjono  , Windy Deftia Mertiana  , Nabila Puspita Firdi  , Diana Purwitasari
Published: January 2023

Breast cancer is the leading cause of cancer death in women. The early phase of breast cancer is asymptomatic, without any signs or symptoms. The earlier breast cancer can be detected, the greater chance of cure. Early detection using screening mammography is a common step for detecting the presence of breast cancer. Many studies of computer-based using breast cancer detection have been done previously. However, the detection process for craniocaudal (CC) view and mediolateral oblique (MLO) view angles were done separately. This study aims to improve the detection performance for breast cancer diagnosis with CC and MLO view analysis. An image processing framework for multi-view screening was used to improve the diagnostic results rather than single-view. Image enhancement, segmentation, and feature extraction are all part of the framework provided in this study. The stages of image quality improvement are very important because the contrast of mammographic images is relatively low, so it often overlaps between cancer tissue and normal tissue. Texture-based segmentation utilizing the first-order local entropy approach was used to segment the images. The value of the radius and the region of probable cancer were calculated using the findings of feature extraction. The results of this study show the accuracy of breast cancer detection using CC and MLO views were 88.0% and 80.5% respectively. The proposed framework was useful in the diagnosis of breast cancer, that the detection results and features help clinicians in making treatment.
Islamic Parenting Patterns of Early Children In The Book How Rasulullah Saw Educating Children
Authors: Fajriyah Arini Inayatul , Toifur Toifur , Kasmiati Kasmiati , Hafidz Nur
Published: January 2023

ABSTRAK. Pola asuh dalam keluarga terjadi karena adanya aktivitas pendidikan orang tua pada. Pola asuh berperan penting terhadap tumbuh kembang anak. Konsep pola asuh terdapat juga dalam buku Cara Rasulullah Saw Mendidik Anak karya Ayu Agus Riani yang menjadi objek material penelitian ini. Untuk itu, penelitian ini bertujuan untuk menemukan dan menjelaskan konsep pola asuh islami yang terdapat dalam buku Cara Rasulullah Saw Mendidik Anak karya Ayu Agus Riani. Metode yang digunakan dalam penelitian ini adalah metode kualitatif dalam library research dengan merefleksikan gagasan pada buku yang dikaji. Teknis analisisnya menggunakan reduksi data, klarifikasi data, dan verifikasi data. Hasil penelitian ini adalah pola asuh islami merupakan pendidikan anak dalam keluarga yang didasarkan pada al-Qur’an dan al-Hadis. Pola asuh islami dalam buku Cara Rasulullah Saw Mendidik Anak karya Ayu Agus Riani meliputi sikap keteladanan, menasihati, bersikap adil, memenuhi hak anak, mendoakan, membimbing anak, dan menghindari caci dan maki anak. Kata Kunci :  Pola Asuh Islami, Anak Usia Dini, dan Mendidik Anak ABSTRACT. Parenting in the family occurs because of the educational activities of parents. Parenting plays an important role in the growth and development of children. The concept of parenting is also contained in the book How the Prophet Educated Children by Ayu Agus Riani who became the object of this research material. For this reason, this research aims to find and explain the concept of Islamic parenting contained in the book How the Prophet Educated Children by Ayu Agus Riani. The method used in this research is a qualitative method in library research by reflecting ideas in the book studied. Technical analysis uses data reduction, data clarification, and data verification. The result of this study is islamic parenting is the education of children in the family based on the Qur'an and al-Hadith. Islamic parenting in the book How the Prophet (saw) Educates Children by Ayu Agus Riani includes the attitude of example, advising, being fair, fulfilling children's rights, praying, guiding children, and avoiding children's berating and berating.   Keyword: Islamic Parenting, Early Childhood, and Educating Children.
The Effect of Pop-Up Book Media On Children's Speech Ability
Authors: Holilah Ilah , Maryani Kristiana , Kusumawardani Ratih , Rusdiyani Isti
Published: January 2023

ABSTRAK. Penelitian ini bertujuan untuk mengetahui ada atau tidaknya pengaruh media pop up book terhadap kemampuan berbicara anak. Penelitian dilakukan pada kelompok B dengan usia 5-6 tahun di Taman Kanak-Kanak Kecamatan Baros, Kabupaten Serang-Banten khususnya di TK Kasih Bunda dan TK Mangga. Metode yang digunakan dalam penelitian ini yaitu penelitian quasi eksperimen dengan desain non-equevalent control group design dengan sampel 30 anak, kelas B1 pada TK Kasih Bunda sebanyak 15 anak sebagai kelas eksperimen dan kelas B1 pada TK Mangga sebanyak 15 anak sebagai kelas kontrol.             Penelitian ini dilakukan selama 2 minggu, instrument yang digunakan dalam penelitian ini berupa pedoman observasi dengan analisis data menggunakan SPSS 22. Hasil dalam penelitian ini menunjukkan bahwa rata-rata kemampuan berbicara anak kelompok eksperimen saat pretest sebesar 38,47 dan untuk kelompok kontrol rata-ratanya sebesar 40,33. Sementara itu hasil posttest pada kelompok eksperimen rata-ratanya sebesar 42,93 % dan kelompok kontrol rata-ratanya menjadi 40,73%. Hal ini menunjukkan bahwa terdapat pengaruh media pop up book terhadap kemampuan berbicara anak.  Kata Kunci : Media Pop Up Book, Kemampuan Berbicara, Anak Usia 5-6 TahunABSTRACT. This study aims to determine whether or not influence of pop up book media on  children’s speaking ability. The study was conducted on group B aged 5-6 years in Kindergarten, Baros District, Serang-Banten Regency, especially in Kasih Bunda Kindergarten and Mangga Kindergarten. The method used in this study is a quasy-experimental study with a non-equevalent control group design with a sample of 30 children, class B1 at Kasih Bunda Kindergarten as many as 15 children as the experimental class and class B1at Mangga Kindergarten as many as 15 children as control class. The research was conducted for 2 weeks, instrument used in this study showed that the average speaking ability of the experimental group children t the pretest was 38,47 and for the control group the average was 40,33. Meanwhile, the posttest results in the experimental group average 42,93% and the control group average 40,73%. This shows that the there is an influence of pop up book media on children’s speaking ability of children 5-6 years.Keywords: Pop Up Book Media, Speaking ability, Children 5-6 years.