bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploring Employees’ Perception of the Effectiveness of Public Employees’ Performance Management Information System: A Case of the Judiciary of Tanzania
Authors: Silidion Beatrice Dominic , Rutenge Mary Mohamed
Published: November 2024

An effective performance management system is a significant challenge in the public sector. The Government of Tanzania has been trying different methods to overcome this challenge. It recently introduced the Public Employees Performance Management Information System (PEPMIS). This study explored employees' perception of the effectiveness of this system using the Judiciary of Tanzania as a case. Expectancy theory was used in this study to explore employees’ expectations toward the effectiveness of the introduced Performance Management System in Tanzania. For that purpose, a case study design using a quantitative research approach was used. A sample of 142 respondents drawn from 219 staff from the Judiciary of Tanzania was used. Stratified sampling, simple random sampling, and purposive sampling were used to obtain different categories of respondents. The data collection methods were questionnaires. Data was analyzed using tabulation, frequency and percentage, which SPSS drove. It was revealed that employees of the Judiciary of Tanzania perceive PEPMIS to be effective. This perception was influenced by the perception that it was fair and accurate, it allowed for timely provision of feedback,  employees considered themselves skilled enough to use the system, the clarity of the assessment procedure, its performance assessment was linked to the goals and targets, performance was linked to rewards, and training was provided. PEPMIS, being perceived as effective, is an opportunity for the government, policymakers, and all stakeholders involved to ensure adequate practice and rectify weaknesses to maintain the public sector's reputation. To conclude, PEPMIS has been shown to meet employees' expectations. Hence, we recommend continuous training for employees on performance management systems. Also, the government and public sector organisations must enact policies that will help enforce the system, including seeing to it that employees are less burdened by the requirement to fill their performance into the system daily.
Influence of Tiktok Use on Road Safety Campaigns: A case of the Rwanda Police’s Gerayo Amahoro in Kicukiro District
Authors: Shaba Erick , Ong’ong’a Daniel Oloo , Irungu Festus
Published: November 2024

Road safety relates to strategies adopted to decrease risks associated with road traffic wounds and loss. In this vein, Rwanda National Police adopted “Gerayo Amahoro’ road safety mobilization to stimulate behavior change. For a successful campaign, National Police used various strategies including TikTok as a new and innovative social media that reaches many people in all categories. The research aimed to examnine effect of TikTok use on road safety campaigns: a case study of the Rwanda Police’s ‘Gerayo Amahoro’ in Kicukiro District. The specific objectives were to determine effect of interactivity in TikTok use on ‘Gerayo Amahoro’ Road safety Campaigns in Kicukiro District, City of Kigali, Rwanda, effectiveness of TikTok use on ‘Gerayo Amahoro’ Road safety Campaigns in Kicukiro District, City of Kigali, Rwanda, and compatibility in TikTok use on ‘effectiveness of TikTok use on ‘Gerayo Amahoro’ Road safety Campaigns in Kicukiro District, City of Kigali, Rwanda. This study was guided by gratification framework, theory of panned behavior and health belief model as relevant theories. The researcher adopted descriptive and correlation study design with a mixed approach (qualitative and quantitative). The study targeted 4,502 Rwandan TikTok users from which a representative group of 368 Rwandan TikTok users calculated using Yamane formula. The study collected data using a questionnaire to collect quantitative data from TikTok users and interview guide was used to obtain qualitative information from interviews held with key informants. The researcher analyzed quantitative data using descriptive statistics regarding frequency, percentage, mean and standard deviation while inferential statistic supported to generate correlation and regression results. Qualitative data was analyzed through content analysis through themes and subthemes. Results denoted that mean response for the Road safety campaigns is 4.30474 to accept. The study shows that TikTok reduced road accidents, driver’s habits to drinks and higher speed for vehicles and other transport. Findings demonstrated the association between interactivity in TikTok use and road safety campaigns at 0.820 the p-value was 0.000 for 2-tailed.  Results evidenced that interactivity in TikTok Use is associated with the performance of road safety campaigns. Results show that 83.6% show agreement with TikTok was compatible with my video sharing actions. This study concludes that compatibility in TikTok use strongly affect performance of road safety campaigns. This study recommends that driver should maintain a proper distance to avoid the collision in the event of a sudden stopping of the vehicle Drivers should take the necessary safety procedures. Governments must ensure that laws related to speeding, drunk driving, seat belt usage, and mobile phone use while driving are strictly enforced.  Future scholars should undertake surveys improving the effectiveness of road safety campaigns.
ANALISIS PENGGUNAAN E-MODUL PADA MATA KULIAH EKOLOGI : LITERATUR REVIEW
Authors: GH MULIANA
Published: November 2024

This study describes one aspect of learner needs analysis, namely a literature review on previous research regarding the use of modules in ecology learning. The research method employed is a literature review or systematic literature review (SLR), which involves examining studies that focus on the use of ecology modules in biology learning processes. The literature sources are derived from articles published in journals and proceedings. Based on the literature review findings, it was concluded that the use of modules in ecology learning has been widely implemented in classrooms. The design and development of ecology learning modules aim to enhance learners' abilities, including contextual learning, independent learning, critical thinking, and scientific literacy. The ecology learning modules identified are in the form of both traditional modules and e-modules that utilize software such as Integrated Development Environment (IDE), Electronic Publication (E-Pub), MIT App Inventor & Adobe Photoshop CS6, QR codes, Moodle, Flip Builder, Flip PDF Corporate Edition, and Sigil software. The results of this review can serve as a foundation or reference for future research on the development of ecology learning modules.
ABSTRAKPenelitian ini mendeskripsikan mengenai salah satu analisis kebutuhan peserta didik, yaitu kajian literatur mengenai penelitian terdahulu tentang pemanfaatan modul dalam pembelajaran ekologi. Metode penelitian yang digunakan adalah kajian literatur atau SLR (systematic literature review), yaitu kajian literatur terkait penelitian-penelitian yang mengkaji pemanfaatan modul ekologi dalam proses pembelajaran biologi. Sumber literatur yang digunakan berasal dari artikel-artikel dari junal maupun prosiding. Berdasarkan hasil kajian literatur yang dilakukan, diperoleh kesimpulan bahwa penggunaan modul dalam pembelajaran ekologi telah banyak digunakan di kelas. Pembuatan dan pengembangan modul pembelajaran ekologi bertujuan untuk meningkatkan kemampuan belajar peserta didik, meliputi pembelajaran kontekstual, belajar mandiri, berpikir kritis, hingga literasi sains peserta didik. Modul-modul pembelajaran kajian ekologi yang ditemukan dalam bentuk modul maupun e-modul yang menggunakan software IDE (Integrated Development Environment), E-Pub (Electronic Publication), MIT Appriventor & Adobe Photoshop CS6, QR code, moodle, flip builder, flip PDF corporate edition, dan sigil software. Hasil kajian ini dapat digunakan sebagai dasar maupun referensi dalam penelitian pengembangan modul pada pembelajaran ekologi di masa yang akan datang.
ANÁLISE EPIDEMIOLÓGICA DE ARTRODESES DE COLUNA REALIZADAS NO SISTEMA ÚNICO DE SAÚDE NO BRASIL DE 2015 A 2024
Authors: Almeida Cleiton Maia de , Harrop Talita Alves , Santos Kauê Magalhães Castro dos , Costa Willian Alves , Sousa Jackson de Sá , Lopes André Reis Pereira , Barros Ariane Cristine Garcia
Published: November 2024

Este estudo apresenta uma análise epidemiológica das artrodeses de coluna realizadas pelo Sistema Único de Saúde (SUS) no Brasil entre 2015 e 2024, totalizando 98.798 procedimentos. As regiões Sudeste e Sul foram responsáveis pela maior parte das cirurgias, concentrando 72,1% do total, com destaque para os estados de São Paulo e Paraná. A evolução temporal dos dados demonstra uma redução gradual no número de cirurgias até 2019, com um declínio abrupto no período da pandemia de COVID-19, seguido de uma recuperação a partir de 2022. O procedimento mais comum foi a artrodese toraco-lombo-sacra (52,7%), seguida pela cervical anterior, que respondeu por 22.183 cirurgias. Houve uma predominância do caráter de urgência (58,4%), especialmente nas artrodeses cervicais e cérvico-torácicas posteriores.  A distribuição das técnicas cirúrgicas variou conforme a região anatômica: a via anterior foi preferida para a estabilização cervical, com predominância de um ou dois níveis, enquanto as cirurgias toraco-lombo-sacras foram principalmente por via posterior e envolvendo múltiplos níveis vertebrais. Estes achados destacam a importância de políticas de saúde pública que promovam um acesso mais equitativo a procedimentos de alta complexidade no SUS.
A HERANÇA DIGITAL SOB A ÓTICA DO DIREITO SUCESSÓRIO BRASILEIRO
Authors: Alves Anne Caroliny Marinho de Souza , Silva Laylla Fernanda Lopes da
Published: November 2024

A herança digital refere-se aos ativos digitais e presença online que uma pessoa deixa para trás após sua morte. Isso pode incluir contas de mídia social, contas de e-mail, fotos, vídeos, documentos e outros tipos de dados armazenados online. Devido a seu uso de forma constante, tem-se debatido a respeito dos seus efeitos jurídicos. Frente a esse cenário, o presente estudo teve a finalidade de discutir a respeito da herança digital pela ótica do Direito Sucessório brasileiro. Na metodologia, teve como fundamento uma revisão da literatura, baseada em artigos científicos, livros, periódicos, legislação atual e jurisprudência sobre o tema. A coleta de dados será realizada por meio de banco de dados tais como Scielo, Google Acadêmico, dentre outros, no período de 2018 a 2023. Nos resultados, ficou claro que no Brasil, os bens físicos são divididos com o cônjuge sobrevivente, dependendo do regime de casamento, e partilhados entre os herdeiros sucessórios e/ou testamentários. No entanto, os bens digitais ainda não possuem regulamentação. A ausência de norma reguladora sobre herança digital, traz diversos efeitos jurídicos. Tem-se por exemplo, a discussão sobre a participação das próprias plataformas digitais no processo de sucessão. Os provedores de aplicação poderiam aplicar seus termos de uso, que, em geral, definem que os dados dos perfis pertencem à própria rede social, mesmo após o falecimento do proprietário do perfil. No entanto, não há consenso sobre isso dentro da jurisprudência e na doutrina jurídica, o que deixa em aberto a discussão desse tema.
ÍNDICE DE CÂNCER DE ESÔFAGO EM PACIENTES DIAGNOSTICADOS COM REFLUXO GÁSTRICO: UM ESTUDO EXPLORATÓRIO-DESCRITIVO NO DATASUS
Authors: Braga Daniela Queiroz , Brandeleiro Gisele Berticelli , Tanaka Tomaz Massayuki
Published: November 2024

Esse artigo buscou a associação entre refluxo gástrico e câncer de esôfago é exclusivamente reconhecida, mas seu impacto é exacerbado por outros fatores de risco, como tabagismo, consumo de álcool, idade avançada, obesidade e sexo masculino. O estudo tem como objetivo geral analisar a incidência de câncer de esôfago entre pacientes diagnosticados com refluxo gástrico, utilizando os dados disponíveis no DataSUS, a fim de identificar se há uma correlação significativa entre ambas as condições. Este estudo tem como metodologia uma pesquisa exploratória-descritiva, com abordagem qualitativa. O estudo sugere que uma intervenção precoce e um acompanhamento clínico mais específico para pacientes com DRGE, especialmente aqueles que apresentam fatores de risco adicionais, podem desempenhar um papel fundamental na prevenção do câncer de esôfago. Futuros estudos longitudinais e investigações adicionais sobre especificações específicas para reduzir a progressão do refluxo para o câncer poderão enriquecer as práticas preventivas, contribuindo para a redução da mortalidade associada a essa neoplasia.
EVOLUÇÃO DAS PRÁTICAS DE MANEJO DE PASTAGENS NO INTERIOR DE RONDÔNIA: UMA ANÁLISE HISTÓRICA E TÉCNICA
Authors: Lahasse Lyziane dos Santos , Nascimento Timotéo Angelo
Published: November 2024

O estudo intitulado "Evolução das Práticas de Manejo de Pastagens no Interior de Rondônia: Uma Análise Histórica e Técnica" analisa as transformações nas práticas de manejo de pastagens na região ao longo do tempo. O trabalho investiga a relação entre as práticas tradicionais e as mudanças climáticas, destacando a importância da sustentabilidade no manejo das pastagens. A pesquisa abrange um panorama histórico das práticas de uso das pastagens, considerando as influências socioeconômicas e políticas públicas que moldaram essas práticas. A metodologia inclui entrevistas e observações diretas com produtores rurais, permitindo uma compreensão aprofundada dos desafios enfrentados, como condições climáticas adversas e infestação de pragas.Os resultados revelam a necessidade de inovações tecnológicas e a valorização do conhecimento tradicional para promover uma gestão sustentável das pastagens. O estudo conclui que, com o avanço das tecnologias e a adoção de práticas mais responsáveis, é possível garantir a produtividade das pastagens e a preservação do meio ambiente, contribuindo assim para o desenvolvimento econômico e social da região.
DMFT and PUFA Indices in First Permanent Molars of Iraqi Children in Najaf City
Authors: Mahdi Khalel Ansam , Basim Ali Mustafa , Adil Sadiq Maytham , M. Ibrahim Salah , Hameed Ali Shatha
Published: November 2024

Objective: To determine the prevalence and severity of caries in the first permanent molars of children aged 8 to 10 years in Najaf, Iraq.
Subjects and Methods: This was a cross-sectional survey involving 1232 children aged 8 to 10 years in schools in Najaf, Iraq. Caries was assessed using the DMFT index and caries severity of permanent teeth was assessed using the PUFA index.
Results: The prevalence of caries in the first permanent molars was 56.1% (n=691). The caries severity of the first permanent molars (PUFA index) was 38.7%, meaning that the children have more severe caries in the first permanent molars.
Conclusion: Caries prevalence and severity increased with age and was high in first permanent molars.
Assessment of Periodontal Health Status and Treatment Needs Among Dental Students of Al-Kufa University by Using the Community Periodontal Index for Treatment Needs: A Cross-Sectional Study
Authors: Rusul Subhi Hassan  , Zanbaq Azeez Hanoon  , M. Ibrahim Salah , Nabaa Basim Alhusseini
Published: November 2024

Objective: This cross-sectional study aimed to assess the periodontal status and treatment needs of undergraduate dental students at Al-Kufa University in Iraq and investigated the influence of demographic factors (age and gender) and oral hygiene practices (tooth brushing technique, frequency of brushing, use of interdental aids, dental visit patterns) on periodontal health.
Materials and Methods: A sample of 200 undergraduate dental students (aged 18-24 years) was selected using a multistage systematic random sampling procedure during the 2023-2024 academic year. Periodontal health was assessed using the World Health Organization Community Periodontal Index for Treatment Needs (CPITN). The CPITN probe was used to evaluate bleeding on probing, presence of calculus, plaque retentive factors, and pocket depths (4, 5, and 6 mm). Data were analyzed using SPSS version 23, and the Pearson’s chi-square test was used to assess associations, with a p-value ≤ 0.05 considered statistically significant.
Results: The study revealed a high prevalence of periodontal disease (86.5%) among the students. Calculus was the most frequent finding (65.5%), while only 13.5% of students exhibited a healthy periodontium. The majority (69%) required scaling and root planning (TN2). Female students exhibited significantly healthier periodontia compared to males (p<0.05). Older students (21-24 years) had a significantly higher prevalence of deeper periodontal pockets than younger students (p<0.05). Smoking was significantly associated with poorer periodontal health (p<0.05). A statistically significant association was found between the frequency of tooth brushing and periodontal health (p<0.05), with those brushing twice daily showing better periodontal status. While not statistically significant, the use of interdental aids was associated with healthier periodontia. Students with irregular dental visit patterns had a higher prevalence of calculus (p<0.05).
Conclusion: This study found a high prevalence of periodontal disease and significant treatment needs among undergraduate dental students at Al-Kufa University. Gender, age, smoking status, and oral hygiene practices were associated with periodontal health. These findings emphasize the urgent need for comprehensive oral health education programs, incorporating behavioral change strategies and promoting the importance of preventive dental care.
Assessment	of	the	Time	Utilization	of	the	Community	Health	Officers	(CHO)	of	Bhavnagar	District,	Gujarat:	A	Cross-sectional	Study
Authors: B Prajapati Kartik , D Bhalani Kailesh
Published: November 2024

Introduction: To attain "universal health coverage" and "health of all", a new cadre namely Community Health Officer (CHO) was introduced at HWC (Health and Wellness Center). In the community, CHO serves as the initial point of contact and source of information for health-related issues. Objective: To assess the utilization of time of CHO at HWCs, Bhavnagar. Method: Out of 63 CHOs with experience of more than 1 year in Bhavnagar district, 30 CHOs were selected randomly for utilization of time. Each CHO was accompanied during their duty hours for all working days of a week. Time spent by a CHO in different activities was recorded. Data were analyzed by using Epi Info Software. Results: It was observed that on an average, CHOs remained on duty for 93% of their duty hours. Around 29.61% of their actual on-duty-time (per week) was used for the personal work, while 17.34% of their on-duty-time was used in OPD, 14.36 % in COVID-19 related work and 14.13% in administration work. Conclusion: The analysis revealed that CHOs spent 93% of their scheduled duty hours on the job. CHOs spent almost one third of their duty hours for the personal work.
Assessment	of	Routine	Immunization	Program	at	Selected	Urban	Health
Centres	in	Ahmedabad,	Gujarat,	India
Authors: Nogas Jinalben , Desai Karankumar , Shah Nandan , Patel Mitesh , Chauhan Shivam , Gelot Bhavesh Gelot
Published: November 2024

Introduction: Urban Health Centre is a key place for implementing Routine Immunization program and vaccine storage. The present study evaluated Cold Chain Point (CCP) and logistics related to routine immunization at selected Urban Health Centers (UHCs) in Ahmedabad. Objective: 1. To evaluate the cold chain infrastructure and logistics supporting routine immunization programs at UHC with a focus on assessing the quality and reliability of vaccine storage and handling practices. 2. To assess the knowledge about cold chain among the Vaccine Cold Chain Handlers (VCCHS). Method: In this cross-sectional study, one UHC from each of the seven zones of Ahmedabad city was randomly selected for assessment of Cold Chain management. Knowledge of VCCHs at each UHCs was assessed using semi-structured questionnaire. Analysis was done using Microsoft excel 2019. Results: It was observed that all UHCs were having session plans and logistics estimation. Around 28.5% UHCs were having lack of essential tools, such as Drop Out charts and maps of their catchment areas. Open vials were found without dates and times labelled in 43% of UHCs, and in one UHC, a vaccine vial was found beyond its usable Vaccine vial Monitor (VVM) stage. All the medical officers utilize various strategies to create awareness, with the majority (86%) using interpersonal communication. All Health Care Providers stated Socio-cultural beliefs and fear of side effects as reason for non-utilization of services. Only 42% of Vaccine Cold Chain Handlers (VCCHs) demonstrated complete knowledge about live vaccines. Conclusion: The study highlights certain issues at UHC like maintenance of drop out chart, map of catchment area, training of medical officers on module of immunization, ice-packs arrangement in Deep Freeze, no knowledge of VCCHs about shake test, which indicates lack of efficiency of VCCHs and need of their training.
A	Mixed-Method Study on Iron-Folic Acid Adherence	and	its Determinants among	Pregnant Women in Puducherry, India
Authors: Saimaa Poosarla , Prakash Mathiyalagen , Pandiamunian Jayabal , Sabita Pulavarthi , Kanagasabapathy Sivagami Kanagasabapathy Sivagami , Basu Mausumi
Published: November 2024

Introduction: Anaemia poses a significant risk to maternal health, contributing to preventable morbidity and mortality among pregnant women. Iron-folic acid (IFA) supplements are provided free of charge to meet the pregnancy's nutritional needs; however, consumption and adherence remains suboptimal. Objectives: To assess the compliance and associated factors for IFA supplementation and to explore the perceptions and barriers among pregnant women attending antenatal clinic. Method: The authors conducted a sequential explanatory mixed-method study at a tertiary care hospital, involving 219 pregnant women in the third trimester seeking antenatal care. The participants were selected through systematic random sampling during the study period of two months. Quantitative data were collected using a pre-tested interview schedule and the Morisky Green Levine Medication Adherence Scale. Qualitative data were obtained through focus group discussions, analyzed using content analysis. Results: Among the participants, 64.4% (95% CI: 57.7%-70.7%) were adherent to IFA during pregnancy. Factors significantly associated with adherence included higher monthly income, increase the number of antenatal check ups and absence of anemia. Common reasons for non-adherence were forgetfulness (62.8%), unawareness (26.9%), side-effects (25.6%), inadequate counseling (23.1%) and tablet taste (3.8%). Qualitative analysis revealed two themes and eight categories. The categories identified under knowledge regarding anaemia were causes, symptoms, complications, treatment options and places for procuring IFA supplements and the categories under barriers to adherence were patient factors, medication factors and health system factors. Conclusion: Approximately one-third of pregnant women did not adhere to IFA supplementation. Findings underscore the importance of consistent nutrition counseling during ante-natal visits, with a special focus on addressing side effects. These results have implications for maternal health programs and policies aimed at improving adherence to essential supplements during pregnancy.
Perceived accessibility: Literature review and future prospects
Authors: Ma Xiaona , Cui Fasheng
Published: November 2024

Perceived accessibility can fully present the cognitive status of different individuals and produce potential positive results. However, the literature on perceived accessibility is scattered across disciplines, which leads to problems of inconsistency in research paradigms and unclear mechanisms in perceived accessibility research. Moreover, the literature has not reached a consensus on the conceptual definition and measurement of perceived accessibility. Given this, the article first introduces the concept and measurement methods of perceived accessibility from four aspects: transportation modes, specific locations, particular things or activities, and activity participation opportunities. Next, it summarizes the antecedent variables of perceived accessibility from two perspectives, namely, objective factors and subjective factors, and the outcome variables from two perspectives, namely, behavioral factors and psychological factors. This reveals the practical impact of perceived accessibility on the cognition and behavior of urban managers. Finally, the study proposes four research directions with theoretical value and practical significance.
ГЕНЕРАТОРЫ НИЗКОТЕМПЕРАТУРНОЙ ПЛАЗМЫ ДЛЯ ПОВЕРХНОСТНОЙ ОБРАБОТКИ ДЕТАЛЕЙ ТЕХНОЛОГИЧЕСКОГО ОБОРУДОВАНИЯ С УЛУЧШЕННЫМИ ЭНЕРГЕТИЧЕСКИМИ И РЕСУРСНЫМИ ХАРАКТЕРИСТИКАМИ
Authors: С.В. Карцев
Published: November 2024

Представлены результаты исследований по совершенствованию генераторов низкотемпературной плазмы для поверхностной обработки быстроизнашивающихся деталей технологического оборудования, а также модификации поверхностей деталей до начала их эксплуатации. Проведен анализ применяемых схем генераторов низкотемпературной плазмы, на основе которого выбрана схема для рассматриваемых генераторов низкотемпературной плазмы и представлены их основные технические характеристики. Установлено, что при рациональной конструктивно-компоновочной схеме и правильном выборе режимов обработки тепловая эффективность плазменных процессов повышается с увеличением ресурса работы катода генератора низкотемпературной плазмы. Приведенные результаты исследований позволили создать генераторы низкотемпературной плазмы с повышенным ресурсом и улучшенными энергетическими характеристиками для поверхностной обработки деталей технологического оборудования свеклосахарного производства.

The results of research on the improvement of plasma torches for surface treatment of wear-resistant parts of technological equipment, as well as modification of the surfaces of parts before their operation are presented. The analysis of the applied plasma torch circuits is carried out, on the basis of which the scheme for the considered plasma torches is selected and their main technical characteristics are presented. It is established that with a rational design and layout scheme of the plasma torch and the correct choice of plasma treatment modes, the thermal efficiency of plasma processes increases with an increase in the service life of the plasma torch cathode. The above research results made it possible to create plasma torches with an increased resource and improved energy characteristics for surface treatment of parts of technological equipment of sugar beet production.
РАЗРАБОТКА ТЕХНОЛОГИЧЕСКОГО ПРОЦЕССА ВОССТАНОВЛЕНИЯ ШАРНИРНОГО УЗЛА СТРЕЛЫ ДИСТАНЦИОННО-УПРАВЛЯЕМОЙ ДЕМОНТАЖНОЙ МАШИНЫ С ПРИМЕНЕНИЕМ ПОЛИМЕРНЫХ КОМПОЗИЦИОННЫХ МАТЕРИАЛОВ
Authors: П.А. Кучаев , А.К. Аноприенко
Published: November 2024

Статья посвящена изучению технологического процесса восстановления пальца стрелы дистанционно- управляемой демонтажной машины с помощью нанесения поверхностного слоя капролона с графитовым наполнителем с целью повышения ресурса и обеспечения долговечности сопряжения.

This work is devoted to the study of the technological process of restoring the boom finger of a remotely controlled dismantling machine by applying a surface layer of caprolon with graphite filler in order to increase the service life and ensure the durability of the interface.
Институт машиноведения им. А.А. Благонравова РАН
Authors: Р.С. Ахметханов
Published: November 2024

В статье приведен анализ влияния направления армирования в композиционном материале относительно циклической нагрузки на неоднородность распределения локальных упругих деформаций, измеренных тепловым методом неразрушающего контроля. В настоящем исследовании за счет термоупругого эффекта показана возможность оценки локального распределения напряжений (деформаций) в объекте контроля. Температурное поле термограммы линейно зависит от напряжений и деформаций в локальных точках объекта контроля. Были проведены исследования термограмм ламинатов из композиционного материала с различной укладкой волокнистого наполнителя (стекловолокно) с эпоксидной матрицей при циклической нагрузке. Для анализа отличий в локальном распределении деформаций были использованы статистические данные, рассчитаны коэффициенты вариации. Для визуализации уровней деформаций был использован метод кластеризации и усреднение по длине ламинатов значений распределения температуры. Получены числовые характеристики распределений локальных температур, которые показали на более их однородное распределение при армировании материала по направлению нагружения детали.

The purpose of the study is to analyze the influence of the direction of reinforcement in a composite material relative to the cyclic load on the heterogeneity of the distribution of local elastic deformations measured by the thermal method of non-destructive testing. In this study, due to the thermoelastic effect, the possibility of assessing the local distribution of stresses (strains) to the field of the test object is shown. The temperature field of a thermogram linearly depends on stresses and strains at local points of the test object. Thermograms of composite material laminates with various placements of fiberglass filler (fiberglass) with an epoxy matrix under cyclic loading were studied. To analyze differences in the local distribution of deformations, statistical data were used and coefficients of variation were calculated. To visualize the levels of deformation, the clustering method and averaging of temperature distribution values over the length of the laminates were used. Numerical characteristics of local temperature distributions were obtained, which showed their more uniform distribution when reinforcing the material in the direction of loading of the part.
ВЛИЯНИЕ СТАРЕНИЯ СМАЗОЧНЫХ КОМПОЗИЦИЙ НА ЭФФЕКТИВНОСТЬ ПРОТИВОИЗНОСНОГО ДЕЙСТВИЯ СОДЕРЖАЩИХСЯ В НИХ ДИТИОФОСФАТОВ ЦИНКА И МОЛИБДЕНА
Authors: И.А. Буяновский , В.А. Яковлева , Ш.М. Газимагомедова , В.Д. Самусенко , И.Р. Татур
Published: November 2024

Статья посвящена исследованию влияния процесса старения на противоизносные свойства смазочных композиций на основе растворов дитиофосфатов цинка и молибдена в базовых маслах И-20А, ПАО-6 и VHVI-6 (класса вязкости по ISO VG–32). Дитиофосфат цинка известен как противоизносная и антиокислительная присадка, а дитиофосфат молибдена – как высокотемпературная антифрикционная присадка. Их противоизносные и противозадирные свойства были оценены дважды по единой методике на четырехшариковой машине по ГОСТ 9490-75. В первый раз были испытаны свежие смазочные композиции, затем эти композиции были перед вторым испытанием искусственно состарены методом высокотемпературного каталитического окисления по методике ВНИИ НП № 42/607 от 10.05.1983 г. Анализ сравнения результатов трибологических испытаний на свежих и на состаренных смазочных композициях, в состав которых входят антиокислительная присадка ДФ-11 показал, что в ряде случаев кислотное число не увеличивается, что следует отнести на счет применяемых в составе таких композиций антиокислительных присадок.

The article is devoted to the study of the influence of the aging process on the anti-wear properties of lubricating compositions based on solutions of zinc and molybdenum dithiophosphates in three oils (I-20A, PAO-6 and VHVI-6, which have a similar viscosity). Zinc dithiophosphate is an antiwear additive, and molybdenum dithiophosphate is a high-temperature antifriction additive. Their antiwear and antiseizure properties were evaluated twice by a single method on a four-ball machine according to GOST 9490-75. The first-time fresh lubricating compositions were tested, and the second time these compositions were artificially aged before the tests by the high-temperature catalytic oxidation method according to the VNII NP No. 42/607 method. Analysis of tribological tests results comparison on fresh and aged lubricating compositions containing antioxidant additives (for example, DF-11) showed that in some cases the acid number practically does not increase, which should be attributed to the powerful antioxidant used in such composition.
ТЕХНОЛОГИЯ РЕМОНТА РЕАКТОРА ГИДРООЧИСТКИ НА БАЗЕ РОБОТИЗИРОВАННОГО КОМПЛЕКСА АВТОМАТИЗИРОВАННОЙ НАПЛАВКИ С МАШИННЫМ ОБУЧЕНИЕМ
Authors: И.В. Степанян , Т.Р. Сулутдинов , А.Д. Горохов
Published: November 2024

Предлагается технология ремонта реакторов гидроочистки на нефтеперерабатывающем заводе с помощью роботизированного комплекса автоматизированной сварки/наплавки. Описан технологический процесс наплавки посредством роботизированного сварочного комплекса на примере ремонта реактора гидроочистки, эксплуатируемого на нефтеперерабатывающих заводах. Одной из особенностей предлагаемой технологии является использование современных видеокамер с лазерной подсветкой и жидкостным охлаждением. Представлен алгоритм управления сварочным роботом на базе методов машинного обучения и нечеткой логики. Описанная технология способствует значительному увеличению сроков эксплуатации реакторов гидроочистки за счет своевременного ремонта в предельно сжатые сроки, а также повышению эффективности труда оператора по ремонту за счет ограничения влияния человеческого фактора.

A technology for repairing hydrotreating reactors at an oil refinery using a robotic automated welding/surfacing complex is proposed. The technological process of surfacing by means of a robotic welding complex is described using the example of repairing a hydrotreating reactor operated at oil refineries. One of the features of the proposed technology is the use of modern video cameras with laser illumination and liquid cooling. An algorithm for controlling a welding robot based on machine learning and fuzzy logic methods is presented. The described technology contributes to a significant increase in the service life of hydrotreating reactors due to timely repairs in the shortest possible time, as well as to increase the efficiency of the repair operator by limiting the influence of the human factor.
СОВРЕМЕННЫЕ ОРИЕНТИРЫ ИЗУЧЕНИЯ ПРОБЛЕМ БЕЗОПАСНОСТИ В ИНЖЕНЕРНО-ТЕХНИЧЕСКОМ НАПРАВЛЕНИИ ОБРАЗОВАНИЯ ВУЗА
Authors: Ю.В. Величко , И.И. Игайкина , Е.В. Кулакова
Published: November 2024

В статье обсуждаются вопросы методолого-теоретических и процессуальных ориентиров изучения комплексных проблем безопасности и безопасности жизнедеятельности при реализации инженерно-технического направления высшего образования. На основе анализа современной научной литературы сделаны выводы, что актуальными подходами являются: комплексный, отражающий идею взаимосвязи социальных аспектов и технических систем в сфере безопасности инженерно-технологических отраслей производства; компетентностный и знаниевый подходы, направленные на формирование способности обучающихся в области инженерной деятельности применять конструктивные знания, умения и навыки при создании новых продуктов и систем. Значимым при реализации изучения проблем безопасности является проектно-ориентированное образование, подход «проектной инженерии», также в качестве процессуального компонента технологий машиностроения в контексте безопасности производственной деятельности актуализируется применение и развитие морфологических методов в технологических системах призванных обеспечить развитие гибких (метапредметных) и профессиональных компетенций обучающихся в области инженерного образования.

The article discusses the issues of methodological, theoretical and procedural guidelines for studying complex problems of safety and life safety in the implementation of engineering and technical areas of higher education. Based on the analysis of modern scientific literature, it is concluded that the relevant approaches are: comprehensive, reflecting the idea of the relationship between social aspects and technical systems in the field of safety of engineering and technological industries; competence-based and knowledge-based approaches aimed at developing the ability of students in the field of engineering to apply constructive knowledge, skills and abilities when creating new products and systems. Significant in the implementation of the study of safety problems is project-oriented education, the approach of «design engineering», also as a procedural component of mechanical engineering technologies in the context of industrial safety, the application and development of morphology is updated.
ПОВЫШЕНИЕ ТОЧНОСТИ И ЧУВСТВИТЕЛЬНОСТИ СИСТЕМЫ ОБНАРУЖЕНИЯ УТЕЧЕК ЗА СЧЕТ ПРИМЕНЕНИЯ WAVELET-ПРЕОБРАЗОВАНИЙ
Authors: Р.Р. Уликанов , Т.А. Ижбулдин
Published: November 2024

В настоящей статье рассматривается применение дискретного wavelet-преобразования, в частности вейвлетов Добеши, с целью повышения точности и чувствительности системы обнаружения утечек в магистральном трубопроводном транспорте нефти и нефтепродуктов. Исследование открывает перспективы для дальнейшего развития и адаптации представленных методов для передачи технологической информации по каналам связи.

This article discusses the application of discrete wavelet transformations, specifically Daubechies wavelets, aimed at increasing the accuracy and sensitivity of leak detection systems used for pipeline impermeability monitoring. The research focuses on optimizing the transmission of pressure data over existing communication channels from pressure sensors to a remote server. As a result, it is possible to increase the polling frequency of the sensors without changing the volume of information transmitted, as well as to reduce the volume of transmitted information without significant loss of quality. The results of industrial tests demonstrate significant advantages of using wavelet transformations: the volume of transmitted data is reduced by 1.3 times, and the accuracy of leak location determination is increased by 1.85 times compared to traditional methods of reducing the volume of transmitted information. The study opens prospects for further development and adaptation of the presented methods for transmitting process information through communication channels.
АНАЛИЗ ПРОЦЕССОВ НАГРУЖЕНИЯ РАЗНЫХ ТИПОВ С ПОМОЩЬЮ НАБОРА ПОЛЕЗНЫХ ИНСТРУМЕНТОВ ДЛЯ ПОСЛЕДУЮЩЕЙ ОЦЕНКИ ДОЛГОВЕЧНОСТИ
Authors: И.В. Гадолина , А.В. Ерпалов , К.А. Хорошевский
Published: November 2024

Случайные нагрузочные процессы в деталях транспортных и технологических машин в эксплуатации обладают широким набором свойств и могут быть классифицированы и обработаны также по-разному. К процессам разного типа были применены обобщенные в настоящей статье и разработанные впервые полезные инструменты для анализа. Показано, что преобразование негауссовского процесса к гауссовскому дает сопоставимые результаты по оцененной долговечности.

Random loading processes in parts of transport and technological machines in operation have a wide range of properties and can also be classified and processed in different ways. The main dividing line for considering processes runs between stationary and non-stationary processes. The division into Gaussian and non-Gaussian processes is also essential. The latter cannot be processed by standard spectral methods to calculate durability. Spectral methods are very promising in terms of saving computing resources and automating calculations using the concept of digital twins. They are also the only alternative for evaluation at the design stage, i. e. when a prototype for conducting a full-scale experiment to measure the stress process does not yet exist. In this regard, methods for converting non-Gaussian processes into Gaussian ones while maintaining their damaging effects are becoming widespread. Since the impact on a material or structural element largely depends on its strength properties (in particular, on the slope coefficient of the fatigue curve), the problem becomes unsolvable in general terms and a numerical analysis of the options will be required. To processes of various types (Gaussian and non-Gaussian), useful tools for analysis, generalized by the authors and developed for the first time, mainly in the time domain, were applied. It is shown that the transformation of a non-Gaussian process to a Gaussian one gives comparable results for a conditional sample.
РАЗРАБОТКА ВИРТУАЛЬНОГО ТРЕНАЖЕРА ДЛЯ ИЗУЧЕНИЯ ТЕХНОЛОГИИ ТОКАРНЫХ РАБОТ НА СТАНКЕ СТ16К20
Authors: С.Л. Никитченко , З.В. Лященко , О.В. Игнатьева , А.М. Лященко , Д.В. Глазунов , Д.С. Журавлев
Published: November 2024

В статье представлены обзор и классификация симуляционных программ, рассмотрена история развития симуляторов в различных сферах деятельности. В приложении Autodesk Inventor были составлены геометрические формы каждого элемента станка. Наложение материалов и текстур осуществлялось с помощью приложения Blender. Для оценки виртуального тренажера для изучения технологии токарных работ на станке СТ16К20 рассчитаны функционально-ориентированные метрики. Приведен фрагмент листинга кода разработка виртуального тренажера для изучения технологии токарных работ на станке СТ16К20.

In the work, the authors present an overview and classification of simulation programs, and consider the history of the development of simulators in various fields of activity. The geometric shapes of each element of the machine were compiled in the Autodesk Inventor application. Materials and textures were applied using the Blender application. To evaluate a virtual simulator for studying the technology of turning operations on the ST16K20 machine, function-oriented metrics were calculated. A fragment of the code listing is given for the development of a virtual simulator for studying the technology of turning operations on the ST16K20 machine.
Parental knowledge, attitudes and perception of pneumococcal disease and pneumococcal conjugate vaccines in Mostar.
Authors:   Clinic for Children’s Diseases, University Clinical Hospital Mostar, Bosnia and Herzegovina., Pažin Jelena , Grgić Svjetlana ,   Department of Infectious Diseases, Mostar University Hospital, Mostar, Bosnia and Herzegovina.,   School of Medicine, University of Mostar, Mostar, Bosnia and Herzegovina., Raguž Marjana Jerković ,   Clinic for Children’s Diseases, University Clinical Hospital Mostar, Bosnia and Herzegovina.,   School of Medicine, University of Mostar, Mostar, Bosnia and Herzegovina.
Published: November 2024

Aim : The aim was to examine the knowledge, attitudes, and
perceptions of pneumococcal disease and pneumococcal
conjugate vaccines among parents of children aged 1 to 5
years.
Material and methods: This cross-sectional study was
conducted in a kindergarten in Mostar with the assistance
of an anonymous survey composed in Google Forms, which
was sent to parents via email. The target group consisted of
parents of children aged 1 to 5 years. The survey was sent on
June 1, 2020, and it was completed on June 10, 2020.
Welfare State: Generosity or Predatory?
Authors: Zaostrovtsev Andrey
Published: November 2024

The article is devoted to the origin, nature and problems of the welfare state. Its consequences are shown. It generates an imbalance in public finances, inflated social obligations that will be impossible to fulfill in the future. At present, it exists at the expense of the exploitation of future generations, some of whose representatives have not yet been born. The protective state (the "night watchman") is being displaced by the distributing state: growing funding for social programs leaves less and less money for defense and other primary functions of the state. The welfare state attracts migrants from backward countries, who are often focused not on finding a place in the labor market, but on receiving benefits. At the same time, a conflict of cultures arises and worsens, and the national identity of the countries receiving migration flows is in danger. The concept of a predatory state is considered in relation to the welfare state. Its predatory nature manifested itself in its displacement of civil society as the organizer of the social sphere. The modern welfare state, providing universal social services for all citizens of the country, was born as a result of two world wars, from the involvement of the civilian masses in them and the necessity to ensure their existence. This quality of the mobilization economy did not become a thing of the past after World War II - national systems of providing social benefits and social protection were only developing. There was an interweaving of the "ratchet effect", when post-war expenditures do not decrease to the pre-war level, with the "path dependence", when social norms that appeared in wartime do not disappear in peacetime. As a result, there are grounds to consider the welfare state as a product of the creeping socialist revolution of the bureaucracy.
Readiness Analysis of Sis Al-Jufrie Hospital and the Bhayangkara Hospital in Palu in Fire Management in the Hospital Occupational Safety and Health Program
Authors: Ali Hi Palanro Muhammad , . Zainuddin , Basir Muhammad
Published: November 2024

Background: Hospital planning in preparedness and response to face emergencies is an important and fundamental part that requires cooperation between work units within the hospital and with other organizations outside the hospital (Al-Shareef et al. 2017). Hospitals need to implement the Hospital K3 Management System because it is part of the overall Hospital management system.
Objective: To analyze the readiness of Sis Al-Jufrie Hospital in Fire Prevention in the Hospital Occupational Safety and Health Program (K3RS).
Method: This research is an evaluative research using a purely qualitative approach.
Results: The readiness of Sis Al-Jufrie Hospital and Bhayangkara Hospital Palu is still not optimal due to the lack of attention from the hospital regarding readiness to face fire disasters as seen from several existing indicators such as a busy work schedule so that the K3RS committee still has difficulty in making a fire training schedule, there are no hydrants or fire detection devices such as sprinklers at Sis Al-Jufrie Hospital and Bhayangkara Hospital Palu, but overall Sis Al-Jufrie Hospital and Bhayangkara Hospital Palu are sufficient because they are equipped with APAR, exit signs, emergency doors and there is a fire training program and there is also a K3RS committee for fire protection.

Keywords: Fire, Hospital occupational safety and health
Prevalence and Contributing Factors of Depression Among Undergraduate Nursing Students in Nepal: A Cross-Sectional Study
Authors: Marasini Pratiksha Gautam , Acharya Laxmi Marasini , Nepal Manju
Published: November 2024

concern among undergraduate nursing students, exacerbated by academic pressures, clinical responsibilities, and socio-cultural challenges. This study aimed to assess the prevalence of depression and explore its contributing factors among nursing students in Nepal. A descriptive cross-sectional design was employed, involving 260 nursing students selected through stratified random sampling from diverse institutions across Nepal. Data were collected using a self-administered questionnaire, including the Patient Health Questionnaire-9 (PHQ-9) for depression screening. The study revealed that approximately 46% of participants reported symptoms of depression, with significant associations found between depression and factors such as age, alcohol consumption, smoking, stress levels, and living area. The odds of depression were higher in older students (aged 21 and above), alcohol consumers, smokers, and those with higher stress levels. Rural students also showed a higher prevalence of depression, though this was not significant after adjusting for other factors. These findings underscore the need for targeted mental health interventions to address the unique stressors faced by nursing students in Nepal, including stress management, substance use prevention, and access to mental health support.

Keywords: Depression, Nursing Students, Mental Health, Nepal, Stress, Alcohol Consumption, Smoking, Socio-cultural Factors.