bluuebunny/crossref_metadata_2025 huggingface dataset:
SASIMI (Aquaponic System in A Circular Economy) Model with 5R Principles to address environmental pollution
Authors: Prastiwi Lustina Fajar , Wahyuningsih Rani Destia , Firmansyah Syahrul Naufal , Nada Fitria , Nurwahidiyah Erika Puji , Billah Ariq Syauqi , Anwar Mila Maulidya
Published: February 2025

The Tanusi Farmers Group in Sumberejo Village, Batu District, faced significant challenges in waste management and limited agricultural land, which hindered their ability to adopt sustainable farming practices. To address these issues, the SASIMI (Aquaponic System in Circular Economy) initiative was implemented. The system aimed to reduce waste by applying the 5R principles. It repurposed inorganic waste, such as plastic, as planting media in aquaponics and utilized maggots as biological agents to process organic waste into compost. The methodology of SASIMI included several stages, such as preparation, education on waste management and maggot cultivation, aquaponic system preparation, training on implementation and maintenance, sustainability training, and evaluation. The implementation of SASIMI yielded significant results. Maggot cultivation was able to establish 10 cultivation sites that process up to 20 kilograms of organic waste per month, converting it into compost. Additionally, 10 aquaponics systems were established, reducing 15 kilograms of plastic waste by repurposing it as planting media.  Economically, the circular economy approach contributed to reducing household expenses. The aquaponics systems provided a sustainable source of fresh produce, leading to a 22 percent reduction in monthly expenditures on vegetables for participating households.
Assistance in using Sipikan Website to increase sales of fishermen in Seri Village Sub-District Nusaniwe
Authors: Gainau Paskanova Christi , Kilay Trisye Natalia , Ruban Angela , Pattiasina George Adolfo , Gomies Natalia Evernande
Published: February 2025

The viability of the fishing industry as a business depends on the sea's condition, as operating patterns rely on environmental factors affecting daily costs. Operational expenses tend to rise without proportional increases in turnover. One solution for fishermen is maximizing fish sales online via a website, reducing transportation costs and enabling better pricing. This service program aims to empower fishermen through digital tools to enhance efficiency and market access. Using Participatory Action Research (PAR), the program includes socialization, training, mentoring, and evaluation. Outcomes showed participants enthusiastically welcomed the Sipikan website. Training improved their comprehension and proficiency, while post-tests indicated increased confidence, initiative, motivation, leadership, and risk-taking. This program demonstrates digital platforms' potential to enhance the sustainability and profitability of small-scale fishing enterprises. Ongoing support is essential to ensure fishermen independently address challenges using the website. Additionally, government policies should encourage MSMEs, especially micro-scale associations, to adopt digital platforms for further growth.
Packaging technology and digital marketing of fish dempo to increase sales productivity
Authors: Halima Andi Sitti , Muis Andi Abdul , Yushra Yushra
Published: February 2025

The BUMDes fish processing business unit group experienced obstacles regarding the function of packaging and how to market digitally in the sale of Dempo fish products.  The purpose of this PKM is to create the right packaging to maintain product quality; and expand product marketing areas to increase sales productivity through digital marketing. The method is carried out through training and mentoring in the form of packaging practices with the use of vacuum sealers, the creation of e-commerce sales accounts integrated into social media, and the evaluation stage of activities. The results of this community service activity show an increase in the skills of the partner group in utilizing packaging tools for Dempo fish produced (78%) so that product packaging is more attractive and supports shelf life to maintain product quality. With the packaging technology used, the knowledge of partner group members in understanding the function of packaging that affects marketing has also increased (80%). This has an impact on the increase in sales turnover received through social media owned by members of the partner group. If previously it was known that the sales turnover of this product was IDR 16 million per year or equivalent to IDR 1.3 million per month, then after the PKM activity there was an increase in sales turnover of IDR 2.1 million at the same price within 3 weeks.
Specifying the chronology of some pigments application according to the results of the investigation of the Soviet painting of the second half of the 20th century
Authors:   The State Research Institute for Restoration, Kadikova Irina F.
Published: February 2025

The article systematizes the cases of occurrence in the works of Soviet masters of the late 1940s–1980s of a number of pigments that are more characteristic of painting of the first half of the XX century: emerald green, vermilion, chrome yellow, zinc yellow and chrome orange. The first two named pigments were actively used in both European and Soviet painting until the 1930s, when the production of art paints based on them was suspended (emerald green) or significantly reduced (vermilion). However, as a result of the study of the paint materials of paintings, sufficient evidence has been obtained that the production of such paints continued in the second half of the XX century. Since emerald green was not produced in the USSR, it can be assumed that Soviet artists used imported paint based on this pigment. Some of these pigments (chrome yellow, zinc yellow and orange chrome) were produced in the USSR, but were used only for the production of II category paints intended for decorative works. This can explain their extremely rare presence in the composition of paint layer of paintings. Thus, the study of Soviet painting of the second half of the 20th century allowed to clarify the chronology of the use of a number of pigments.
Nikolai Ivanoviya Podklyuchnikov is an icon painter and restorer. Based on archival documents from the collection of the Ostankino estate museum
Authors:   State Palace and Park Museum-Reserve “Ostankino and Kuskovo”, Ukhanova Elena V.
Published: February 2025

One of the most interesting representatives of the serf intelligentsia of the 19th century was Nikolai Ivanovich Podklyuchnikov, a serf of Count Sheremetev, who gained his freedom and established himself as an artist, restorer and collector. The article deals with documents from the collection of the Ostankino Estate Museum, which make it possible to assess N. I. Podklyuchnikov's contribution to the creation of scientific restoration of icons and paintings, the foundations of which, its main approaches, were laid by him in the middle of the 19th century. The method of layer-by-layer clearing of the monument in combination with preliminary samples to determine the preservation of the oldest colour layer is one of the main requirements of modern scientific restoration and is still used today. Special attention was paid by N. I. Podklyuchnikov to the ‘Passport of Restoration’, the scientific description of the object and its depiction at each stage of restoration. The article also offers to get acquainted with previously unpublished documents, including an unknown watercolour by N.I. Podklyuchnikov, preserved in the museum's archive.
RE-EVALUATING THE CORE PRINCIPLES OF SECULARISM IN CONTEMPORARY INDIA
Authors: Naidu S. T. , Unnithan Arun V
Published: February 2025

Secularism, a foundational pillar of India's democracy, has played a pivotal role in maintaining the nation's pluralistic fabric. However, recent socio-political developments necessitate a re-evaluation of its core principles to ensure fairness, inclusivity, and impartiality in governance. This study explores the historical context of secularism in India, its constitutional mandates, and the challenges posed by the politicization of religion and judicial ambiguities. Through a comparative analysis of Indian and Western secular frameworks, the paper emphasizes the need for policy reforms and judicial clarity. Ultimately, it advocates for a balanced approach where state neutrality and protection of minority rights co-exist, reinforcing the constitutional ethos of secularism in modern India.
Do the Effects of Inadequate Housing/Community and Inadequate Employment Increase the Likelihood of Criminality Amongst Individuals with Mental Health Disabilities?
Authors: Campo Katelynd
Published: February 2025

An abundant amount of research on mental health and more specifically the social barriers faced by Individuals with Mental Health Disabilities (IMHD) exists regarding access to adequate housing/community and employment. What research lacks in precision concerns incidents of criminality amongst IMHD. Research has concluded decades over that IMHD are more at-risk of finding themselves in situations of inadequate employment and inadequate housing/community. To which, research has also found most often leads to increased chances of addiction, welfare dependency, negative peer associations/influences, lack of positive role models; situations of which in general lend greater opportunities for criminal involvement. This paper will in a literature review, seek to understand and analyze why IMHDs make-up an overrepresented population within the criminal justice system, and whether or not there is a correlation between criminality perpetuated by IMHD in relation to situations of inadequate housing/community and inadequate employment amongst said population.
Communicating climate change to transform coping practices of farming audiences to sustainable adaptive capacity in Chad
Authors:   University of Dschang, B.P. 96, Dschang, Cameroun Colline de Foto, Cameroon, Kongnso Moye Eric
Published: February 2025

As any other Sub-Saharan country, Chad is highly vulnerable to climate variability and change. This research aimed to examine climate change communication pathways and the extent to which they have transformed and strengthened adaptive capacities of farmers based on the case of Mont Illi in Chad. Using a mixed methods approach, the data were collected from secondary and primary sources, accompanied by field missions. Qualitative and quantitative data analysis has revealed that climate change communication is key in the National Adaptation Plan, and institutions such as ANADER play a pivotal role in information dissemination. However, targeted communications are yet to transform coping practices of farmers, as 53% of them lack access to information; the other 47% receive it through radio (24%), from peer farmers (25%), agricultural federations (16%), technical agents (14%), television (7%), and the Internet (4%). Unlike in other areas where the media are crucial in information dissemination, farmers in Mont Illi have better access to information from other farmers, farming federations and traditional authorities. Cost effective and contextualized information has improved existing practices as well as facilitated rehabilitation of traditional knowledge systems for sustainable adaptation. Yet, in order to reinforce local adaptive capacities and transform farming practices through climate communications, actions should focus on strengthening institutions, agro-climatic extension and synergizing science with local knowledge in adaptation policy.
Major Shifts in Classical Tafsīr: From Early Exegesis to the Rise of al-Shrūḥ wa-l-Ḥawāshī
Authors: Coşkun Muhammed
Published: February 2025

This study explores the turning points in the historical development of Qur’ānic exegesis, from its very beginning to the period of annotations and super-commentaries (al-shurūḥ wa-l-ḥawāshī) from the
6th/12th century onwards, using comparative analysis and descriptive content methods, focusing on
subfields like the “Nīshāpūr circle,” the “al-Kashshāf tradition,” and “al-Shurūḥ wa-l-Ḥāwāshī” literatu
re. To better understand the formation and transformation of classical tafsīr, however, it is essential
to move beyond this simplistic view and trace the transformative paradigms. This study proposes an
attempt at such a tracing process, which further and more specific studies should enrich. One of the
key transformation points identified in this study is the contribution of al-Ṭabarī and his contempora
ries, marking the end of the early period and the transition to comprehensive exegetical writing. The
transformative impact of the Nishapurī circle of tafsīr can also be evaluated within this framework. The
“al-Kashshāf tradition”, an area whose significance has been somewhat understood in Turkish literature but has yet to be fully appreciated in international Qur’ānic studies, is also brought to the forefront in this article for its transformative role. Moreover, the contributions of Muʿtazilite thought, particularly its influence on Sunni kalām and subsequently on the discipline of rhetoric, and the transformation of tafsīr in the sixth century of the Hijri with the influence of rhetoric are of particular important in the same context. Examining all of these major transformations from a panoramic perspective, this research engages critically with the corpus of Western Qur’ānic studies and proposes enriching this body of work with the developments in Turkish tafsīr literature.
The Utilization of Virtual Laboratories in Science Education at Junior Secondary Schools in Tangerang Regency
Authors: Gustomi  , Driana Elin , Ernawati
Published: February 2025

Virtual laboratories are seen as a promising solution to the shortcomings of conventional laboratories. This study aims to explore the use of virtual laboratory for science practicum in junior high schools, the supporting factors, the hindering factors, and perceptions of teachers and students regarding virtual laboratories. A survey were administered to five teachers and 122 students from public and private schools in Tangerang Regency. Additionally, semi-structured interviews were conducted with five teachers and 10 students who had prior experience using virtual laboratories in their learning. Quantitative data was analyzed using descriptive statistics, while qualitative data was examined through an interactive model approach. The findings reveal that virtual laboratories have been utilized by both teachers and students for laboratory activities, particularly in physics, although the usage remains infrequent. Factors such as device availability, internet connectivity, data limitations, and facility access were found to influence the extent of virtual laboratory adoption. Overall, both teachers and students perceived virtual laboratories as highly beneficial, especially for schools lacking sufficient conventional laboratory resources.
Prevalence of subclinical hypothyroidism in local adult obese population.
Authors: Afrah Malik  , Muhammad Tahir  , Muhammad Zuhair Tahir  , Muhammad Zubair Tahir  , Ayesha Salim  , Munir Ahmad
Published: February 2025

Objective: To find out the frequency of subclinical hypothyroidism (SCH) in local adult obese population and to determine the risk of cardiovascular events in patients with SCH using the 10-year Atherosclerotic Cardiovascular Disease (ASCVD) risk calculator. Study Design: Cross Sectional & Descriptive study design. Setting: Medicine Ward, PAF Hospital, Islamabad. Period: 20th July 2023 to 20th January 2024. Methods: A total of 200 patients of both gender with Body Mass Index (BMI) greater than 28kg/m2 were included in the study. Blood samples were Collected from all patients and sent to the hospital laboratory for performing thyroid function tests and fasting lipid profile. Patients found to have SCH (TSH levels more than reference range with normal T3 and T4 levels) had their ten-year risk of cardiovascular events determined using the ASCVD Risk Calculator. A calculated 10 year ASCVD risk of ≥7.5% was concluded significant. Results: Age range in this study was from 20 to 65 years with mean age of 43.295±8.85 years, mean BMI 30.960±1.53 Kg/m2, mean TSH 2.904±1.29 mIU/L (normal range 0.27 to 4.2 mIU/ml), mean T3 103.230±6.86 ng/dL (normal range 94 to 170 ng/dL) and mean T4 was 10.092±1.26 μg/dL (normal range 5 to 11 μg/dL). Subclinical hypothyroidism was observed in 16% patients. Amongst these patients, increased cardiovascular event risk was present in 25% patients. Conclusion: Our study has concluded a high prevalence of subclinical hypothyroidism among obese adult patients and increased risk of cardiovascular events in patients with SCH.
Dorsal lumbotomy approach for paediatric pyeloplasty.
Authors: Imran Qadir  , Sadaqat Ali  , Samreen Jamil  , Haji Muhammad
Published: February 2025

Objective: To assess the outcomes of dorsal lumbotomy approach for paediatric pyeloplasty in terms of duration of surgery, blood loss, hospital stay and postoperative complications. Study Design: Retrospective Review. Setting: Children Hospital, Faisalabad. Period: Aug 2021 to July 2024. Methods: The patients presented with hydronephrosis and followed by confirmed case of pelviureteric junction obstruction with DTPA renal scan, were operated in last five years with this surgical approach were reviewed retrospectively, n=126 cases. Pelviureteric junction was corrected with dismembered pyeloplasty using dorsal incision vertically named dorsal lumbotomy incision. DJ stent was placed in every case of pyeloplasty which was removed cystoscopically after 6 weeks of procedure. Results: There was total 126 patients, 82 patients were males and 44 patients were females. The mean age of patients at the time of surgery was 4.56±2.16 years. Mean duration of surgery was 52.60±8.27 minutes. Mean blood loss was 42.7 milliliters. Mean hospital stay was 3.46±1.38 days. Superficial wound infection was documented in 13 (10.3%) patients, spontaneous expulsion of DJ stent through urethra in 3 (2.4%) patients, ureterovasical junction obstruction (UVJO) was found in 6 (4.8%), incisional hernias were documented only in only 3(2.4%) patients. Cosmetic acceptance by the patients/parents of this incision was documented in 119 (94.4%) cases. After 24-month follow-up there was observed evidence of clinical and radiological improvement in 120(95.2%) patients. Conclusion: Dorsal lumbotomy approach for pediatric pyeloplasty is a safe technique for boys and girls. Post-operative morbidity, wound infection and seroma formation all are low in dorsal lumbotomy approach.
Comparison of outcome of fracture shaft of humerus treated conservatively with a functional brace versus open reduction and internal fixation.
Authors: Naveedullah  , Baqir Hussian  , Azeem Khan  , Shah Fahad Qayyum  , Sifatullah
Published: February 2025

Objective: To determine the frequency of non-union with functional brace versus operative techniques using open reduction and internal fixation in managing mid-shaft humerus fracture. Study Design: Randomized Controlled Trial. Setting: Department of Orthopedics and Traumatology, Lady Reading Hospital Peshawar. Period: 20th July 2023 to 20th January 2024. Methods: A total of 156 patients of both genders with mid-shaft humerus fractures were included in the study. Patients in group A were treated surgically. In group B patients were treated non-operatively. At the end of 12 weeks frequency of union/malunion was noted in both groups. Results: The age range in this study was from 18 to 60 years with a mean age of 39.666±12.78 years in Group A and a mean age of 42.423±10.66 years in Group B. Male gender was dominant in both groups (76.9% and 71.8%). Nonunion was observed in 2 (2.6%) patients in group A as compared to 15 (19.2%) patients in group B (P= 0.001). Conclusion: In conclusion, our study emphasizes that surgical intervention using ORIF is more effective than non-operative management.
Etiological profile of precocious puberty in children at a Tertiary Care Hospital.
Authors: Sadia Mehak  , Mohsina Noor Ibrahim  , Zubair Ahmed Khoso  , Maria Riaz
Published: February 2025

Objective: To determine the etiological profile of precocious puberty in children. Study Design: Cross-sectional study. Setting: Department of Endocrinology, National Institute of Child Health, Karachi, Pakistan. Period: October 2023 to September 2024. Methods: Children of either gender, girls aged below 8 years, boys below < 9 years, and newly diagnosed cases of precocious puberty were analyzed. At the time of enrollment, demographic and clinical features were documented. Radiological and hormonal profiling were performed for the confirmation of etiology and type of precocious puberty. Results: In a total of 48 children, 23 (47.9%) were boys, and 25 (52.1%) girls. The mean age was 5.72±1.78 years. The most frequent clinical features were rapid height growth, adult body odor, and breast enlargement, noted in 48 (100%), 42 (87.5%), and 25 (52.1%) cases, respectively. Precocious puberty type was central, and peripheral among 25 (52.1%), and 23 (47.9%) children, respectively. Among central precocious puberty cases (n=25), the evaluation of etiology revealed that idiopathic in 17 (68.0%) children, hypothalamic hemartoma 3 (12.0%), mitochondrial encephalopathy 2 (8.0%), craniopharyngioma 2 (8.0%), and arachnoid cyst 1 (4.0%). Among 23 peripheral puberty cases, congenital adrenal hyperplasia was identified in 18 (78.3%) children, adrenocorticol carcinoma 2 (8.7%), ovarian teratoma 2 (8.7%), and Mccune-Albright syndrome in 1 (4.3%). Conclusion: Idiopathic central precocious puberty and congenital adrenal hyperplasia emerged as the most common causes of central and peripheral precocious puberty, respectively.
Evaluating the effectiveness of BISAP score in predicting severity of acute pancreatitis.
Authors: Sami Ul Haq  , Abbas Ali Raza  , Saddam Hussain  , Waseeq Ullah  , Mahnoor Amjad  , Akif Ullah
Published: February 2025

Objective: To assess the efficacy of the BISAP score in predicting the severity of acute pancreatitis. Study Design: Cross Sectional, Retrospective. Setting: Surgical Unit, Mardan Medical Complex, KPK. Period: June 2022 to October 2024. Methods: A sample size of 192 was determined. The study included patients aged 18-60 years, of both genders, diagnosed with acute pancreatitis based on the American Pancreatic Association criteria. Data was collected using a standardized form and analyzed with SPSS version 22. Results: Among the 192 patients, males and females’ ratio was 1.4: 1. with mean age of 35.89 ± 13.39 years. 31.2% had severe acute pancreatitis (score >3), while 68.75% had mild pancreatitis (p value < 0.001). The area under curve was 0.98, indicating strong diagnostic power. The study had a sensitivity 96.67%, specificity 93.2%, positive likelihood ratio (PPV) 86.6%, and true negative rate (NPV) of 98.43%. Overall diagnostic effectiveness for severity and mortality was 94.3% and 80.7%, respectively. Conclusion: The BISAP score is reliable, rapid, and cost-effective means for assessing severity, enabling effective patient stratification and prompt initiation of intensive management of severe patients to reduce mortality and morbidity.
Patients’ preference and acceptance towards surgical vs nonsurgical modalities of accelerated orthodontic treatment.
Authors: Muhammad Uzair  , Sadaf Arshi  , Sana Masood  , Iqra Asif  , Arisha Siddiqui  , Junaid Tariq
Published: February 2025

Objective: To determine patients' preferences toward accelerated orthodontic treatment modalities and evaluate factors that influence the choice of acceleration technique. Study Design: Cross-Sectional Survey. Setting: Department of Orthodontic A Private Dental University. Period: September 2024 to October 2024. Methods: Data was collected after the ethical approval of the study. Participants were provided informed consent before the study began. Adult patients seeking orthodontic treatment were requested to complete a questionnaire that included questions on age, gender, level of education, and basic questions about orthodontic therapy. The questions were relevant to modalities of rapid orthodontics treatment. Before answering questions on the modalities, participants were provided a brief description of the clinical process and images of a real procedure. The orthodontist conducted the description and photography sessions. Result: The median age reported is 20 years (IQR: 3) with 59.6% female and 40.4% males in the sample. Most participants were matric/intermediate qualified (65.5%), while 17.5% were undergraduates and 17% were graduates. A majority (86.4%) preferred non-surgical procedures aimed at being anxiety-free (38.1%). Participants choosing surgical procedures primarily did so to reduce treatment time and achieve faster outcomes. A statistically significant effect was found in opinion about time reduction if accelerated orthodontic surgical or non-surgical treatment modalities are applied (p-value <0.001). Conclusion: The study concluded that non-surgical approaches to accelerate tooth movement are frequently considered by adult orthodontic patients.
Quality of life in transfusion dependent thalassemia patients at national institute of child health.
Authors: Sanam Hussain  , Muhammad Ashfaq  , Bader u Nisa  , Hayat Bozdar  , Aijaz Talani
Published: February 2025

Objective: To determine the quality of life of children suffering from transfusion dependent thalassemia. Study Design: Case-control study. Setting: Department of Pediatrics, National Institute of Child Health, Karachi, Pakistan. Period: March 2024 to August 2024. Methods: Children of either gender, aged between 6 months to 14 years, and having transfusion dependent thalassemia were included as cases (n=95). For controls (n=95), healthy volunteers without chronic disease, matched in terms of gender and age were included. At the time of enrollment, demographical data like age, gender, height, and weight were noted. Relevant laboratory investigations were performed and evaluated. Children of both groups along with their parents were interviewed about quality of life administering WHOQOL-BREF questionnaire. Results: In a total of 190 children (95 children in each group), 104 (54.7%) were male and 86 (45.3%) female. Physical health scores were 35.62±6.68 in children with transfusion dependent thalassemia vs. 74.92±7.92 in controls (p<0.001). Psychological health scores were 38.16±8.12 vs. 76.68±6.66 (p<0.001) among transfusion dependent thalassemia children versus controls, respectively. Social relationships were 41.19±6.14 vs. 77.50±7.01 (p<0.001) among transfusion dependent thalassemia children versus controls, respectively. Environmental scores were 43.51±6.93 vs. 71.59±6.06 (p<0.001), among transfusion dependent thalassemia children versus controls, respectively. Conclusion: Our study highlights the significant negative impact of transfusion-dependent thalassemia on the quality of life of affected children across all domains of the WHOQOL-BREF questionnaire.
PRODUÇÃO DE CERVEJA ARTESANAL DO TIPO WEISSBIER UTILIZANDO CASCAS DE BANANA COMO FLAVORIZANTE
Authors:   , Ferreira Aléxia Paola Santos , Pereira Amanda Alves Candido , Moura Camila de Carvalho , Oliveira Júlia Aparecida Ferreira de , Marques Lorenzo Ferreira , Costa Filho Valdir dos Santos
Published: February 2025

SENAI. Curso Técnico em Química. O meio ambiente carece de atenção especial devido à grande bagagem de resíduos despejados ao longo de tantos anos. Dessa forma, é indispensável o desenvolvimento de novas tecnologias capazes de reutilizar racionalmente esses resíduos. A casca de banana, por exemplo, tem como destino em sua maioria a lata de lixo, gerando um acúmulo de 87,6 mil toneladas de subproduto por ano no Brasil, apesar de que possui alto teores de nutrientes, como vitamina C e fibras. Por meio de análise de mercado, verifica-se que a cerveja é uma das bebidas mais consumidas no mundo, estando atualmente registradas diversas formulações no Brasil devido à gama de estudos recentes que identificaram mudanças na fabricação da bebida e do uso de ingredientes diferenciados. Além disso, seu consumo moderado é capaz de promover benefícios ao organismo pela presença de compostos bioativos, incluindo vitaminas do complexo B e minerais. Para reduzir o descarte da casca de banana, propõe-se a criação de uma cerveja artesanal de trigo que a utilize em sua composição como forma de fornecer aroma e sabor à bebida. Foi realizada uma pesquisa de consumidor com amostragem não-probabilística por conveniência para verificar a viabilidade desse projeto. Em seguida, propôs-se uma metodologia de fabricação dessa cerveja a nível laboratorial e industrial seguindo as normas de fabricação e controle de qualidade. Por fim, elaborou-se um plano de negócio para a criação de uma nanocervejaria pensando em formas resolutas e inovadoras de dar um destino apropriado para resíduos orgânicos, de forma que transmita o sentimento amistoso almejado pelos consumidores.
AVALIAÇÃO DA MORFOLOGIA E ALTURA DE DEPOSIÇÃO DE COBRE IMPRESSOS POR JET ECD
Authors: Querino Thiago Ferreira , Amaral Letícia Bueno do , Silva Rafaela Evangelista da , Fiocchi Arthur Alves
Published: February 2025

O desenvolvimento de diversas técnicas para a Manufatura Aditiva (MA) de metais encontra-se acelerado e seguindo diversas alternativas. Uma delas é a Electrochemical Additive Manufacturing (ECAM) por meio da técnica de Eletrodeposição a Jato (Jet Electrodeposition - Jet ECD). Dessa forma esse trabalho objetiva avaliar o comportamento da morfologia e da altura de deposição por meio da deposição de pontos de cobre usando Jet ECD. Os experimentos conduzidos permitiram concluir que o aumento da altura da deposição guarda relação com o tempo de deposição, resultando em morfologias com estruturas tipicamente dendríticas.
CLUSTERING AND ELECTROMECHANICAL IMPEDANCE APPLIED IN THE STRUCTURAL HEALTH MONITORING
Authors: Gonçalves Daniel Ferreira , Freitas Fernanda Beatriz Aires de , Cavallini Jr Aldemir Ap. , Steffen Jr Valder
Published: February 2025

The advancement of industrial systems and machine learning techniques for monitoring and damage diagnosis has gained significant attention, being widely applied in engineering projects. The development of smart systems enables real-time analysis of large data volumes, providing insights for optimization, cost reduction, and product quality improvement. This study proposes an intelligent system to assess structural integrity using electromechanical impedance and Artificial Intelligence (AI). Bee Colony Optimization was employed to estimate the most sensitive frequency range for damage monitoring. Feature extraction and reduction techniques were applied, and an ensemble clustering was used to recognize healthy and damaged samples. Metrics were employed to evaluate model performance. Preliminary results suggest that the proposed model is a promising methodology for structural integrity monitoring.
INTEGRAÇÃO DE SENSORES INERCIAIS E SISTEMAS ÓPTICOS NA ANÁLISE BIOMECÂNICA DE MOVIMENTOS ESPORTIVOS
Authors: Morales Daniel Alberto Flórez , Maruo José Gustavo Campos , Santos Frederico Sousa , Alves Diego Augusto Costa , Araujo Cleudmar Amaral
Published: February 2025

A análise biomecânica tem se mostrado essencial tanto em esportes de alto rendimento quanto em processos de reabilitação. Com o avanço tecnológico, sensores inerciais (IMUs) ganharam destaque por sua portabilidade e capacidade de coleta direta de dados no corpo humano. Este estudo investiga a integração de um sistema de captura de movimento óptico com sensores inerciais para melhorar a precisão na análise biomecânica. Participantes executaram movimentos específicos, registrados simultaneamente pelos dois sistemas. Os resultados confirmaram a eficácia das IMUs na captura de aceleração e velocidade angular, enquanto o sistema óptico forneceu detalhes precisos das trajetórias espaciais. A combinação dos sistemas revelou-se promissora para calibração cruzada e aprimoramento de algoritmos, apontando para aplicações futuras na análise de movimentos biomecânicos.
MODELAGEM NUMÉRICA MULTIFÍSICA DE UM REGENERADOR DE ENERGIA ELETROMAGNÉTICO DEDICADO A ALIMENTAR UM SISTEMA DE MONITORAMENTO DE MÁQUINAS ROTATIVAS ENERGETICAMENTE AUTÔNOMO
Authors: Sfalsin Fabricio Nascimento , Cavallini Junior Aldemir Aparecido , Steffen Junior Valder
Published: February 2025

A pesquisa em sistemas energeticamente mais autônomos têm avançado com o desenvolvimento de novas tecnologias, impulsionadas por demandas específicas de projetos e políticas ambientais. Entre as principais inovações nesse segmento podem ser citadas o aumento da capacidade de baterias e a redução do consumo de energia dos hardwares. Contudo, sistemas alimentados apenas com baterias têm operação limitada, exigindo recargas e substituições. Nesse contexto, os energy harvesters são dispositivos capazes de coletar diferentes tipos de energia disponível no ambiente e transformá-las em energia elétrica para alimentar sistemas eletrônicos. Nesse trabalho serão abordados os regeneradores de energia eletromagnéticos. Esses dispositivos captam a energia proveniente de vibrações mecânicas através de um ímã móvel que oscila diante de uma bobina de cobre, gerando uma variação no fluxo magnético e induzindo uma força eletromotriz. Devido ao seu princípio de funcionamento esses dispositivos podem ser construídos com volume reduzido, adequados para sistemas eletrônicos compactos. Para viabilizar sua aplicação faz necessário maximizar sua capacidade de conversão energética. Para isso, esse trabalho propõe uma metodologia de simulação numérica multifísica para um modelo simplificado de um regenerador de energia eletromagnético utilizando o software COMSOL Multiphysics. Através dessas simulações foram obtidos resultados qualitativos que asseguram o potencial dessa metodologia.
AVALIAÇÃO DO PROCESSO DE LIXAMENTO DE TERMOPLÁSTICOS
Authors: Alves Artur Martins , Carvalho Douglas da Silva , Silva Leonardo Rosa Ribeiro da , Silva Vitor Marques
Published: February 2025

O lixamento é uma das operações de usinagem mais comuns, utilizada tanto na indústria para ajustar a topografia final das peças quanto na pesquisa para testes de abrasão em revestimentos e superfícies. Este processo pode ser realizado manualmente ou de forma automatizada, sendo que a automação tem se destacado com o uso de braços robóticos para movimentação de cintas rotativas. As condições de entrada no processo têm uma relação complexa com a qualidade da peça e com o desgaste do material lixado, tornando necessário o estudo dos melhores parâmetros de processo e sua influência nas forças e potências de lixamento, desgaste por abrasão e rugosidade. Este trabalho visa analisar essas características no lixamento de dois polímeros termoplásticos, utilizando um planejamento experimental fatorial completo em dois níveis para três variáveis: material lixado, tipo de processo (manual ou cinta) e granulometria da lixa. As forças foram medidas com um dinamômetro estacionário e a velocidade foi determinada a partir das frequências de oscilação dos sinais de força. A variação da massa foi influenciada principalmente pela granulometria da lixa e pelo tipo de processo, sendo este último também um fator significativo para as potências de lixamento.
SIMULAÇÃO DE UM ROTOR SUPORTADO POR MANCAIS MAGNÉTICOS ATIVOS CONTROLADO POR METAMODELO KRIGING
Authors: Santos Maria Carolina Albuquerque de Souza , Cavallini Jr Aldemir Aparecido , Steffen Jr Valder
Published: February 2025

Mancais magnéticos ativos (MMA) são amplamente utilizados na indústria por turbo bombas, compressores e turbinas de alta velocidade, utilizando de forças magnéticas para levitar o rotor, eliminando atrito e desgaste. Isso permite operações sem contato, reduzindo a necessidade de lubrificação e manutenção, e consequentemente, aumentando o tempo de operação. No entanto, a instabilidade das forças magnéticas requer um sistema de controle sofisticado, composto por sensores de posição, filtros, controladores e amplificadores. Recentemente, pesquisas têm focado em controladores que garantem a estabilidade e robustez dos MMA. Técnicas como o PID adaptativo, lógica fuzzy e neuro-fuzzy, têm apresentado bons resultados. Entre as técnicas não lineares, os métodos de modos deslizantes se destacam pela sua robustez frente a incertezas, apesar da alta complexidade no desenvolvimento e implementação. Este trabalho propõe o uso de metamodelos para controlar um rotor suportado por MMA, avaliando seu desempenho em função de amplitudes de vibração. Os resultados indicam que o metamodelo Kriging é eficaz em manter a estabilidade do rotor em várias condições de operação.
ESTIMATIVA DE TORQUE MÍNIMO PARA A PROPAGAÇÃO DE TRINCA EM ENSAIO SNTT UTILIZANDO METODOLOGIA NUMÉRICA
Authors: Calaça Rafael de Paula , Cunha Bruno Sousa Carneiro da , Martiniano Guilherme Antonelli
Published: February 2025

O método de Teste de Torção com Entalhe em Espiral (SNTT) tem ganhado destaque no estudo de falhas em materiais. O teste aplica torque em corpos de prova cilíndricos com um entalhe helicoidal de 45º, gerando forças de cisalhamento uniformes ao longo da trinca. Apesar do seu potencial, a adoção ainda é limitada pela falta de clareza metodológica. Este estudo utilizou elementos finitos no Abaqus® 2023 para modelar o SNTT e estimar o torque mínimo para propagação de trincas no aço 4140 (31 HRC). A metodologia envolveu um processo iterativo comparando resultados numéricos com dados experimentais, alcançando um erro percentual de 8,33%, demonstrando a eficácia do modelo na previsão do torque mínimo necessário para a abertura de trincas.
BALANCEAMENTO DE MÁQUINAS ROTATIVAS SEM MASSA DE TESTE VIA APLICAÇÃO DO FILTRO DE KALMAN AUMENTADO: ESTUDO NUMÉRICO
Authors: Pereira Neto Raimundo V. , Rezende Stanley Washington F. de , Cabral Leonardo Dias da Silva , Dourado Arinan De Piemonte , Cavallini Jr. Aldemir Ap. , Steffen Jr. Valder
Published: February 2025

O desbalanceamento pode ser definido como uma força harmônica que surge quando os centros geométrico e de massa dos rotores não coincidem. A literatura sugere várias abordagens para minimizar o desbalanceamento, que podem ser englobadas em técnicas baseadas em modelo e baseadas em sinais. Devido à sua simplicidade, as baseadas em sinais são mais comumente usadas no contexto industrial. No entanto, devido à necessidade de massas de teste, esses procedimentos são frequentemente caros. A alternativa para as abordagens baseadas em sinais são os métodos baseados em modelos, mas a eficácia dessas técnicas depende da representatividade do modelo usado. Nesse sentido, o Filtro de Kalman Aumentado (AKF) surge como uma alternativa, pois reduz a necessidade de um modelo representativo e o uso de massas de teste para estimar as forças de desbalanceamento. Portanto, a principal contribuição deste trabalho é o uso do AKF, na identificação e correção do desbalanceamento em máquinas rotativas. Para isso, foi realizado um estudo numérico, no qual a representatividade do modelo e as incertezas nas medições foram avaliadas quanto à sua eficácia na identificação das forças e, consequentemente, no balanceamento. Os resultados mostraram que a metodologia empregada foi capaz de balancear satisfatoriamente todos os casos analisados.
ESCOAMENTO NO INTERIOR DE UM CONTÊINER CILINDRICO ROTATIVO
Authors: Pinto Saulo Andrade , Silveira Neto Aristeu da
Published: February 2025

Neste trabalho são apresentados os resultados obtidos na simulação computacional de um escoamento bifásico com fronteira imersa, focalizando na ascensão de um fluido no interior de um cilindro rotativo utilizando o software MFSim, desenvolvido no Laboratório de Mecânica do Fluidos (MFLab) - Universidade Federal de Uberlândia (UFU). O estudo começa com a apresentação do modelo físico com as hipóteses simplificadoras utilizadas. Em seguida, o modelo matemático referente as equações que modelam o escoamento, e posteriormente o modelo computacional descrevendo as variáveis utilizadas para a simulação computacional. Para realizar a simulação, são utilizadas as metodologias de volume de fluidos (VOF), fronteira imersa (IB) e malha adaptativa, com o pós-processamento de imagens sendo realizado através do software ParaView. Os resultados obtidos mostram o comportamento da interface entre os fluidos e a comparação entre a solução computacional e analítica.
DETERMINAÇÃO DE UMA EQUAÇÃO PREDITORA DO CONSUMO DE ENERGIA ELÉTRICA DE UM RESFRIADOR ELETROMECÂNICO (CHOPEIRA)
Authors: Pabon Yeyner Alveiro Carrillo , Bandarra Filho Enio Pedone
Published: February 2025

Neste trabalho, é apresentada a obtenção de uma equação preditiva do consumo de energia elétrica para uma chopeira, baseada na análise de similitude. Para isso, foi usado o teorema de Buckingham para obter os termos adimensionais baseados nas variáveis de projeto e assim formular uma equação que represente a variável de interesse. De acordo com os resultados, foi possível obter resultados satisfatórios, tendo um coeficiente de determinação de 0,9317, ou seja, o modelo encontrado consegue representar a variabilidade dos dados em 93,17%.
Plantas Alimentícias Não Convencionais (PANCs)
Authors: Santos Vera Lucia Pereira dos , Bertoti Julia Aparecida de Queiroz , Witt Nicole Geraldine de Paula Marques
Published: February 2025

A obra, está estruturada com capítulos escritos por professores da Escola Superior de Educação Humanidades e Línguas (ESEHL), juntamente com estudantes da Área de Geociências que fazem parte da linha de pesquisa “A.T.L.A.S. Ação Transdisciplinar e Laboratórios de Ambiente e Sociedade”, que está vinculado ao Grupo “EAD, Presencial e o Híbrido: Vários Cenários De Docência, De Currículo, De Aprendizagem e Políticas Públicas”, cadastrado junto ao Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPQ).
Programa Dinheiro Direto na Escola em Foco nos estudos do centro colaborador de apoio ao monitoramento e à gestão de programas educacionais na Região Sul (Volume 1)
Authors: Lima Alana dos Reis , Gouveia Andréa Barbosa , Severo Cláudia , Compagnoni Cristiane Regina Dourado , Bandeira Denise Lindstrom , Lima Iana Gomes de , Selau Lisiane Priscila Roldão , Viana Mariana Peleje , Bairros Mariângela , Farenzena Nalú , Batista Neusa Chaves , Marchand Patricia Souza , Neves Rodrigo Meleu das , Vieira Talita Cristina , Labrea Valéria Viana
Published: February 2025

Nos quinze capítulos que compõe os dois volumes desta obra passeamos pelos processos formativos, pela pesquisa engajada sobre uma política pública, acompanhamos olhares que vão de macro análises a partir de dados quantitativos até microanálises da interlocução com os sujeitos que estão na base da execução da política, ou seja, os capítulos são uma rica narrativa do programa de apoio e monitoramento, ao mesmo tempo que uma reflexão densa sobre a política pública. É absolutamente impressionante a amplitude do trabalho desenvolvido e apresentado em apenas dois anos de funcionamento do CECAMPE-Sul.
Virtual labs in life sciences education: A case study of grade 10 learners in selected South African rural schools
Authors: Ngema Mbalenhle , Motlhabane Abraham
Published: February 2025

This study investigated the effectiveness of virtual reality lab activities in enhancing grade 10 learners’ understanding of life sciences concepts and science process skills. A quasi-experimental design was employed, with a control group using traditional teaching methods and an experimental group using virtual reality lab activities. The results showed significant improvements in the experimental group’s understanding of life sciences concepts and science process skills, including making observations, interpretation, measurement, recording data, and planning an investigation. The virtual reality lab activities were found to be effective in enhancing learners’ understanding and skills, with significant differences observed between the control and experimental groups. The study’s findings suggest that virtual reality lab activities can be a valuable tool for teaching life sciences and promoting science process skills and have implications for the integration of technology in science education.
Bond Characteristic-Dependent Viscosity Variations in CaF₂-SiO₂-Al₂O₃-MgO Welding Fluxes
Authors:   American Welding Society, YUAN HANG , ZHANG YANYUN , LIU HONGYU , WANG CONG , LI ZUSHU
Published: February 2025

Viscosity is critical in welding fluxes as it could affect weldability and alloying element transfer behaviors during submerged arc welding. It is widely accepted that viscosity is intrinsic to bonding structures. However, it is unclear how such structures could modify viscosity in commercial CaF2-SiO2-Al2O3-MgO fluxes. In this study, structure-viscosity correlations have been revealed by employing molecular dynamics calculations coupled with viscosity measurements. The results show that viscosity at 1300°C reaches maximum (1.99 Pa·s) and minimum values (0.10 Pa·s) at the highest SiO2 and MgO levels, respectively. Furthermore, bond stability and distribution could indicate the structural degree of polymerization. Specifically, the proportion of stabilized bridging oxygen and bonded F (Si-F and Al-F) correlates positively with the activation energy of viscous flow. Due to the dilution effect of free F and the depolymerization effect of bonded F, the activation energy of viscous flow in the targeted system (60–130 kJ/mol) is significantly lower than in fluorine-free ones (160–240 kJ/mol). The current investigation establishes a relationship between bond stability and viscous flow activation energy, demonstrating a stronger correlation than considering O-related structural parameters alone.
Faktor Determinan Minat Kewirausahaan Mahasiswa Akuntansi di Yogyakarta
Authors: Erawati Teguh
Published: February 2025

The increase in the number of students becoming candidates for employment has led to an increase in unemployment among students. The study aims to test whether there is an influence between entrepreneurship learning, family environment and income expectations on entrepreneurial interests of accounting students. This research population is a student of the accounting study program of public and private colleges in Daerah Istimewa Yogyakarta (DIY). In the study, sampling techniques used purposive samplings with respondents of 123 students as well as data analysis techniques included descriptive analysis, classical assumption tests, and hypothesis tests. Based on the analysis of data from the study, it can be concluded that entrepreneurial learning has a positive influence on entrepreneurship interests of accounting students, the family environment has a positively influenced enterprise interests for accounting student, and income expectations have a positive impact on enterprising interest of accountancy students. The difference with previous research is by adding an entrepreneurial learning variable. The results of this research imply in the field of accounting that enables entrepreneurs to obtain a variety of financial information that is important in running their business.
Investigation of Free Vibration Behavior for Composite Sandwich Beams with a Composite Honeycomb Core
Authors: Majid Jasim Zainab , Jawad Abdulsamad Husam
Published: February 2025

The purpose of the current research is to determine the effect of fiber type, volume ratio, and matrix type on the vibration properties of sandwich beams made of composite face sheet and core. The typical sandwich structure consists of three layers: face sheets, core, and adhesive bonding, and in this research, the adhesive layer between the face sheets and core was abolished by preparing the overall mold with fibers inside and casting the resin to fill the face sheet and core parts. The face sheets of the composite beams are made from a polyester or epoxy matrix reinforced with glass fiber, carbon fiber, and hybrid fiber, and the core is a honeycomb consisting of random glass fibers immersed in a resin matrix (polyester or epoxy). 22 composite sandwich beams were constructed to conduct vibration testing. The vibration results obtained experimentally were compared to the ANSYS R1 2022 software, and the results were in very good agreement. Hybrid fibers and polyester matrix achieved the highest values of natural frequency for (clamped-clamped) boundary conditions, where the natural frequency value of the hybrid fiber and polyester matrix reached (2037 Hz) at a volume fraction of (23.14%) experimentally and the natural frequency reached (1804.5 Hz) at a volume fraction of (21.95%) experimentally for the simply supported boundary condition.