bluuebunny/crossref_metadata_2025 huggingface dataset:
COMPATIBLIZAÇÃO DE PROJETOS DE EDIFICAÇÕES: ESTUDO DE CASO DE DOIS EDIFÍCIOS MULTIFAMILIARES
Authors: Franz Felipe , Wiese Marcos
Published: December 2024

Objetivo: O objetivo desta pesquisa é analisar as não-conformidades mais recorrentes e comparar o método de sobreposição 2D com checklist em relação a plataforma automatizada e parametrizada 3D.
 
Referencial Teórico: Os projetos de edificações são compostos de diferentes disciplinas e são realizados por diversos profissionais conforme sua especialidade. Esta divisão, no entanto, enfatiza a necessidade da compatibilização entre os diversos projetos para evitar retrabalhos no canteiro de obras por conta de interferências não identificadas nesta fase.
 
Método: Estudo de caso de duas edificações multifamiliares, de dois pavimentos em estrutura de concreto armado e fechamento de alvenaria de vedação. Os projetos (arquitetônico e complementares) foram elaborados por diferentes projetistas. A compatibilização foi realizada por dois métodos: (i) compatibilização manual através de checklist e sobreposição de desenhos 2D (ii) Modelagem em BIM com detecção automática de intereferências.
 
Resultados e Discussão: Na compatibilização dos projetos das edificações 01 e 02, a análise manual identificou mais incompatibilidades com os projetos hidrossanitários (respectivamente 41% e 40%), enquanto a automatizada identificou mais incompatibilidades com a estrutura no primeiro projeto (38%) e a arquitetura no segundo (37%). Comparando com outros estudos, constatou-se a inexistência de um padrão de incompatibilidades entre as disciplinas de projeto.
 
Implicações da Pesquisa: A prevalência de incompatibilidades entre uma disciplina e outra está diretamente relacionada a experiência e conhecimento dos projetistas, bem como as especificidades de cada obra. O mesmo verifica-se a respeito da qualidade da compatibilização dos projetos.
INFLUÊNCIA DA ESPESSURA DAS JUNTAS DE ASSENTAMENTO NA RESISTÊNCIA À COMPRESSÃO DE PAREDES DE ALVENARIA ESTRUTURAL DE BLOCOS DE CONCRETO
Authors: Krenkel Eliton Maurício dos Santos , Wiese Marcos
Published: December 2024

Objetivo: Estudar a influência da espessura de argamassa de junta de assentamento dos blocos de concreto na resistência à compressão de paredes de alvenaria estrutural.
 
Referencial Teórico: A resistência das paredes depende da resistência dos materiais utilizados e da interação entre eles, assim, a espessura da junta de assentamento pode influenciar na resistência da parede.
 
Método: Foi realizada uma pesquisa experimental, com blocos de concreto de 14 cm x 19 cm x 39 cm e moldados 18 prismas ocos com espessuras de argamassa de assentamento de 5mm, 10mm e 15mm e argamassa com traço 1:0,5:4 (cimento: cal: areia média). Foram realizados ensaios de compressão axial dos blocos e prismas e determinada eficiência prisma/bloco.
 
Resultados e Discussão: Os ensaios de resistência dos prismas de 5 mm, 10 mm e 15 mm apresentaram resistência característica à compressão fpk,est = 3,765 MPa, fpk,est = 3,759 MPa e fpk,est = 3,546 MPa respectivamente. Os prismas executados com junta 5 mm alcançaram a maior resistência à compressão, 0,16% maior que a resistência dos prismas executados com junta de 10 mm, o aumento da espessura para 15 mm diminuiu a resistência do prisma em 5,66% comparando com espessura de 10mm. Concluiu-se que a espessura da junta de assentamento influência na resistência à compressão da parede de alvenaria estrutural.
 
Implicações da Pesquisa: Este estudo enfatiza a importância do controle rigoroso da espessura das juntas de assentamento, conforme os limites estabelecidos pela NBR 16868 (ABNT, 2020) de 10 mm ± 3 mm.
An Investigation of Dynamic Soil-Structure Interaction on the Seismic Behavior of RC Base-Isolated Buildings
Authors: Santoso Alvin K. , Saito Taiki
Published: December 2024

Soil-structure interaction (SSI) can significantly influence earthquake responses in base-isolated (BI) buildings, yet it is often overlooked in practice due to the high computational demands of complex analyses. This study investigates SSI effects on reinforced concrete (RC) base-isolated buildings, idealizing SSI with a cone model. Three BI building models of varying heights and soil characteristics were analyzed using modal and nonlinear time history analysis. The base isolation system incorporated elastic sliding bearings, lead rubber bearings, natural rubber bearings, and oil dampers. The SSI model was idealized considering hard, medium, and soft soils. To simulate earthquake input, three artificial ground motions with different phase characteristics were generated to match the design response spectrum according to the Japanese code. The seismic responses of the base-isolated building models with SSI were compared to those of models without SSI. Modal analysis showed that the natural period increased with softer soil profiles. In the first and second modes, the natural period lengthened as the building’s aspect ratio increased. Conversely, in the higher modes with a rocking pattern, the building with the lowest aspect ratio exhibited the longest natural period. Overall, implementing SSI generally reduced seismic responses, notably lowering story drift, acceleration, and force, particularly for buildings on soft soil. However, the SSI effect significantly increased the base rotation angle in high aspect ratio buildings on soft and medium soils. These findings indicate that including SSI in analysis is essential for more realistic seismic response predictions, especially for tall, slender base-isolated buildings. Doi: 10.28991/CEJ-2024-010-11-01 Full Text: PDF
Effect of Coal Combustion Waste on Cement-Treated Clay
Authors: Nugroho Soewignjo A. , Wardani S. P. Retno , Muntohar A. S. , Satibi Syawal
Published: December 2024

High plasticity clay is soil with poor material characteristics; one of them is the large shrinkage condition due to its high plasticity. Therefore, it is necessary to improve the soil using cement and coal-combustion waste (CCW). The purpose of this research is to determine the effect of mixture addition on the CBR value of the specimen on stabilization. Variations of 6%, 9%, 12%, and 15% of CCW and cement content vary by 3% and 5%. Based on the test results, there is an increment in the CBR bearing capacity, which was initially 0.80% to 18.75% to 42.90% by adding cement and CCW between 6% and 15%, respectively, after 7 days of curing. This increment is the largest of all variations in the CBR test. The percentage of increment in CBR value is quite large, i.e., a multiple of 200. This proves that the mixture is able to work effectively in increasing the bearing capacity of the soil. Based on microscopic testing of CBR samples, it is obtained that the higher the levels of Bottom Ash Fly Ash (BAFA) and cement, the rougher and paler the samples became as the structure changed. And vice versa, the lower CCW content and cement content made the sample structure become smoother and brighter in color, closer to the original color of natural clay. Doi: 10.28991/CEJ-2024-010-11-010 Full Text: PDF
Evaluating the Rutting Resistance of Asphalt Mixtures Containing Waste Steel and Treated Recycled Concrete Aggregate
Authors: Hussein Ghufran Abd Al-Mohsen , Ismael Mohammed Qadir
Published: December 2024

Using treated recycled concrete aggregate (RCA) in asphalt with waste steel reinforcement benefits the economy and the environment while delaying asphalt pavement deterioration. This study examined the impact of using RCA in several percentages reinforced by three dosages of waste steel: 0.3, 0.6, and 0.9 added as a proportion of mixture weight. The RCA was immersed in a 0.1M Hydrochloric acid solution for one day to treat the weak cement mortar in RCA and reduce the thickness of this layer. The assessment was carried out in a laboratory using the typical Marshall test to determine the optimum quantity of asphalt contents, the volumetric properties of asphalt mixtures, and the wheel tracking test; the study involved ten rectangular slabs measuring 30×40×5 cm, and they were repeatedly subjected to 700 N wheel loads at 55°C to test their rut resistance. According to the study, while Marshall's stability increased, adding waste steel and RCA did not significantly alter the volumetric properties of asphalt mixes. The greatest improvement in Marshall stability, 45.18% over the conventional mix, was seen in the mix, including 75% RCA and 0.9% waste steel. The rutting performance decreased with the addition of RCA and rose with the inclusion of waste steel. The results indicate that adding waste steel to asphalt mixtures effectively increases the rutting resistance. The mixture with 50% RCA and 0.9% waste steel showed less rutting depth of 25.01% than the conventional mix. Doi: 10.28991/CEJ-2024-010-11-011 Full Text: PDF
Assessing the Effect of Geometric Design and Land Use on Roundabouts Using Video Camera
Authors: Al-Mistarehi Bara , Imam Rana , Al-Shawabkah Majdoleen M. , Shtayat Amir , Al-Omari Aslam
Published: December 2024

This study is concerned with assessing the effect of geometric design and land use on roundabouts, which are one of the most widely used traffic calming techniques. It aims to study the speed profiles before, at, and after thirty selected roundabouts in Jordan to develop models for predicting the circulating speed for through movement as a function of the land use of the roundabout, the roundabout geometric characteristics, and the approaching highway free-flow speed. A laser radar gun was used to capture speed data, and geometric characteristics were extracted from video pictures. Various parameters were employed to simulate the circulating speed, including the roundabout diameters, free flow speed, entry deviation angle, approaching highway exit width, circulating roadway width, and entry width. Speed profiles were developed for six roundabout types with different land uses and geometric characteristics. It was found that the roundabout effect on speed reduction extends to 150 m downstream the exit and upstream the entry. It was also discovered that the rate of reduction varies according to the upstream street free flow speed (FFS), with dramatic decreases observed at the last 50 m upstream of the entry. Variability in the speed values around the midpoint of the circulatory roadway was observed, with speed at the exit being higher than that at the entry. Doi: 10.28991/CEJ-2024-010-11-012 Full Text: PDF
Performance of Asphalt Mixtures Modified with Nano-Eggshell Powder
Authors: Zghair Chfat A. Hadi , Yaacob Haryati , Mohd Kamaruddin N. H. , Al-Saffar Z. Hazim , Jaya R. Putra
Published: December 2024

Primary issues in pavement engineering, such as rutting, moisture damage, and fatigue cracking, have prompted numerous studies aimed at improving pavement performance. Utilizing biomaterial waste to modify bitumen through nanotechnology is a promising approach to improve asphalt-mixture properties and aligns with goals of sustainability and reducing the dependence on non-renewable resources. Therefore, the primary objective of this study was to investigate the effect of nano-eggshell powder (NESP) as a sustainable bio-modifier for bitumen on the mechanical properties of asphalt mixtures. To achieve this, asphalt mixtures containing 0% (control), 5%, and 9% NESP were developed, and their mechanical properties were investigated through various tests such as moisture damage, Marshall immersion stability, resilient modulus, dynamic creep, double-punch shear, water immersion, and wheel tracking. The results showed that NESP reduced the moisture susceptibility of the mixtures by increasing their tensile strength ratio. Additionally, the durability of the asphalt mixtures improved as the NESP content was increased. Moreover, the addition of NESP significantly enhanced the resilient modulus and dynamic creep of the asphalt mixtures. The double-punch test revealed that the NESP improved the rutting and fatigue resistance of the asphalt mixtures. Furthermore, the water-immersion test indicated that NESP enhanced the adhesion properties between the bitumen and the aggregate. Finally, the wheel-track test results suggested that the mixtures modified with NESP exhibited a lower rut depth than the control mixtures. Notably, 9% NESP was optimal for enhancing the mechanical properties of the asphalt mixture. The study demonstrated that using NESP as a bio-modifier for bitumen is feasible and offers a more sustainable alternative to traditional bitumen additives. Doi: 10.28991/CEJ-2024-010-11-016 Full Text: PDF
Kinematic Seismic Isolation System with Magnetic Dampers
Authors: Lapin Vladimir , Kim Boris , Shakhnovich Alexandr , Shokbarov Yeraly , Aldakhov Yerken
Published: December 2024

The aim of this study is to experimentally and theoretically investigate the behavior of a three-story fragment of a frame building constructed using the PGF-SIKF system—Prefabricated girderless frame with seismic-isolating kinematic foundations. Magnetic dampers are employed at the support level. The novelty of the research lies in the combination of a girderless frame with kinematic foundations and innovative magnetic dampers. The experimental research method involved loading the system with horizontal static force using a stationary winch, followed by the release of the load. Vibration measurements were recorded using a digital measurement system. The normative live load was simulated by applying additional static load. It was determined that the oscillation period varies between 1.8 and 2.1 seconds, depending on the amplitude of the impact. The dissipative characteristics of the seismic isolation system were obtained, with acceleration values during the testing phases ranging from 95 to 177 cm/s². The experimental results confirmed that the building fragment showed no visible damage. The logarithmic decrement of oscillations was found to range between 0.08 and 0.16. Theoretical studies involved calculations based on a sample of 14 real accelerograms, with parameters corresponding to the magnitudes of local earthquakes (M=6), the maximum magnitude expected in Shymkent. The main result is the reduction of seismic loads achieved by using kinematic foundations in the girderless frame system. It was established that, under 7-8 intensity seismic events, the average displacements at the foundation level will not exceed the experimental values. Doi: 10.28991/CEJ-2024-010-11-018 Full Text: PDF
Green Construction and Local Wisdom Integration for Sustainability: A Systematic Literature Review
Authors: Sri Kristinayanti W. , Zaika Yulvi , Padma Devia Y. , Solimun . , Agung Wibowo M.
Published: December 2024

The construction industry's environmental impact necessitates a sustainable shift to mitigate resource depletion, emissions, and biodiversity loss. Integrating local wisdom offers innovative, adaptive solutions grounded in deep environmental understanding, potentially transforming construction practices toward sustainability. This study aims to identify aspects, challenges, impacts, and strategies in green construction practices integrated with local wisdom. The PRISMA framework methodology was used to conduct a comprehensive systematic review with qualitative analysis using NVivo software. Nine aspects of green construction integrated with local wisdom were identified, with cultural heritage preservation the dominant aspect. Eleven challenges were uncovered, with balancing tradition and innovation as the main challenges. Seven impacts on the economy, society, and environment were identified, with construction cost efficiency, improvement of community quality of life, and promotion of a circular economy and sustainable waste management as the dominant impacts. Thirteen strategies were identified, with active engagement of local communities in the construction process as the main strategy. The novelty of this research is a comprehensive review of the integration of green construction with local wisdom, which can be used as a guide in sustainable construction practices responsive to local environmental and social conditions and promote economically, socially, and environmentally sustainable development. Doi: 10.28991/CEJ-2024-010-11-020 Full Text: PDF
A Formula for Predicting Primary Settlement of Tropical Highly Organic Soil and Peat in the Field
Authors: Prativi Ayu , Mochtar Noor Endah , Mochtar Indrasurya B.
Published: December 2024

Highly organic soil and peat are problematic soils due to their low bearing capacity and high compressibility. In tropical regions, the presence of woody material in these soils often affects the stress-compression and time-compression curves in load-increment consolidation tests, leading to unusual shapes. Consequently, conventional inorganic soil theory and the Cα/Ccconcept are inadequate for analyzing their compression behavior. As an alternative, the Gibson and Lo model can be used to obtain compression parameters from single-load consolidation tests. However, this method introduces considerable discrepancies when predicting the primary settlement. To address this issue, this paper proposes a formula for predicting the primary settlement in highly organic soil and peat in the field, especially in tropical regions. Samples were collected from several locations in Indonesia. The formula was constructed from the stress-strain relationship during the primary compression stage, obtained from numerous single-load consolidation tests. Long-term field settlement is predicted by combining this empirical equation for primary settlement with the Gibson and Lo model for secondary settlement. The proposed formula was verified using field soil monitoring data, demonstrating reasonable accuracy in predicting the primary settlement of highly organic soil and peat. Doi: 10.28991/CEJ-2024-010-11-03 Full Text: PDF
Seismic Performance Assessment of Sustainable Shelter Building Using Microtremor Method
Authors: Putra Rusnardi Rahmat , Kiyono Junji , Ono Yusuke , Saputra Dezy
Published: December 2024

The increasing intensity of earthquakes in West Sumatra could trigger megathrust earthquakes and tsunamis at the inter-plate in the Mentawai Islands. Building assessments are necessary to determine their vulnerability to predicted earthquakes. The target is a four-story building that serves as an education building and vertical evacuation. This research proposes a complete vulnerability assessment method using single microtremor observations, and the results are used to determine seismic building performance. The natural frequency is derived from the spectral analysis of the horizontal components (NS and EW) for each level, and we considered the largest earthquake peak ground motion (PGA) in this region to be the September 30, 2009, Padang earthquake (PGA 380 gals as ground motion input). We calculated the resonance index, seismic vulnerability index, and damping ratio. The results show that the resonance index of the structure is less than 1, the vulnerability index of the UNP Faculty of Economics building ɤ > (1/100-1/200) and is 1/234 to 1/699 for the x direction and 1/207 to 1/709 for the y direction; the average damping ratio is <5% for both directions (x, y) and RDM and FSR relationship is 0.78 and 0.69 for x and y respectively. The overall findings indicate that the structural response of the evaluated buildings falls within the 'slight' damage category during seismic events. Doi: 10.28991/CEJ-2024-010-11-06 Full Text: PDF
What visibility do we want? Chaotic Expressions
Authors: Rouse Jenelle , Lo Alice
Published: December 2024

Encarte Visual What visibility do we want? Chaotic Expressions
Documentário A Vida de São Jorge: memória filmada de uma "mise-en-scène do encontro"
Authors: Bittencourt Max Freitas
Published: December 2024

Este encarte visual surge a partir das imagens-câmera do filme A vida de São Jorge, documentário fruto de uma experiência vivida por mim no centro umbandista e kardecista São Jorge, no extremo oeste da Bahia, entre 2016 e 2019, e se constitui de registros audiovisuais e fotográficos dos ensaios de um espetáculo teatral encenado pelos próprios médiuns do terreiro. O filme também traz entrevistas com os “atores”, as filhas e filhos de santo da casa de Mãe Maria, a ialorixá da comunidade. A apresentação do espetáculo para o público também foi filmada e compõe a montagem, assim como algumas imagens de arquivo, que ressignificam imagens de edições anteriores da festa, que acontece há mais de trinta anos. Com um modo de representação reflexivo, o filme, narrado em primeira pessoa, mostra como o encontro filmado entre o documentarista e a comunidade, com seus personagens reais e fictícios, se conformou nas imagens. Neste ensaio visual, busco compartilhar um pouco do processo de realização fílmica na comunidade do Terreiro de São Jorge.
A antropóloga vai ao YouTube: o filme político latino-americano como campo de pesquisa
Authors: Oliveira Janaina Silva de
Published: December 2024

Este trabalho busca estabelecer uma conexão entre o conhecimento antropológico e a interpretação do universo cinematográfico. Sua metodologia consiste em analisar o que o filme propõe, levando em consideração os contextos históricos, políticos e sociais que permeiam sua produção. É importante ressaltar que as questões abordadas neste trabalho são influenciadas pelas subjetividades da autora, especialmente sua posição como mulher negra e as problemáticas que dela decorrem. O cinema discutido aqui é o cinema político, militante e revolucionário latino-americano das décadas de 1960 e 1970. Partindo do reconhecimento de que determinados campos, como o cinema, podem contribuir para as demandas da prática antropológica atual.
Arquivo-Oráculo: por uma antropologia caçadora, sonhante e arqueológica das escolas vivas
Authors: Fonseca Cacá , Britto Filipe , Tupinambá Glicéria , Castro Laura
Published: December 2024

Arquivo oráculo é um experimento audiovisual forjado à imagem de uma consulta oracular a partir do embaralhamento dos arquivos de autoria coletiva do projeto “Expedição Catástrofe: por uma arqueologia da ignorância” e pelas imagens produzidas  no ciclo de oficinas Vocabulário para Catástrofe, composto pela proposição ‘Contra-arquivos’, uma aula gravada de Glicéria Tupinambá. Os arquivos de vídeos foram  submetidos em tempo real a edições randômicas, sem início ou duração preestabelecidos, numa remontagem imprevisível operada pela linguagem de programação python, ininterruptamente até que o sistema seja desligado. O algoritmo escolhe aleatoriamente um vídeo, recorta-o ao acaso e o reproduz enquanto já calcula que trecho de qual vídeo entrará na sequência, todos conectados a partir das suas diferentes temporalidades sem estabelecer hierarquia. A mítica do oráculo aciona na pergunta lançada ao arquivo, o imponderável da resposta, inconclusa, adivinhatória, infinita, atravessada por imagens, arquétipos, lampejos e epifanias do presente, perfurando a linearidade do tempo supostamente arquivado para se enrolar no seu topos ambivalente, tal como uma cobra do tempo enrolada, corpo vivo, ancestral e ingovernável.
Reparar: estendendo a vida útil das coisas, produção audiovisual, pesquisa e transmedia
Authors: Chávez Carvajal Hugo , Hillen Casandra Sabag
Published: December 2024

Estamos acostumbrados a ver en aparatos, como las cámaras fotográficas, solo una mediación tecnológica que tiene, una vida y una muerte anunciadas. Solo ponemos atención en su primer uso y no en sus otras trayectorias. Reparar: extendamos la vida útil de las cosas, es una invitación a explorar otras posibilidades a través del universo de la reparación. Este proyecto es una propuesta de documentación audiovisual e investigación que actualmente está conformado por tres componentes que en conjunto articulan un proyecto antropológico transmedia.
Fazer-cidade-em-rodas: uma (etno)grafia desenhada em um mercado público em João Pessoa-PB
Authors: Amorim Lara , Velame João Vítor
Published: December 2024

Entre 2021 e 2023, ao longo de uma pesquisa de mestrado, foi produzida uma série de desenhos sobre os usos e sentidos atribuídos aos instrumentos com rodas que são utilizadas por diferentes atores sociais no âmbito de um mercado público e de uma ocupação de catadores, localizados no Bairro dos Estados da cidade de João Pessoa, Paraíba. Este artigo pretende apresentar resultados parciais desta pesquisa, focando na análise sobre os usos e sentidos atribuídos às “coisas com rodas” a partir da perspectiva de um fazer-cidade-em-rodas ao abordar reflexões teórico-metodológicas que permitem ampliar o debate sobre novas tendências de etnografias de formas não-textuais. Nos apoiamos nas reflexões inspiradas pelo debate antropológico da década de 1980, nos debates teóricos de James Clifford e George E. Marcus (1986) com Writing Culture e em Roy Wagner (1986) e Timothy Ingold (2000), influências orientadoras para repensar a criação e invenção no fazer etnográfico.
A fotoetnografia entre a ciência e o sensível
Authors: Fontes Larissa
Published: December 2024

Este artigo retraça uma experiência de transformação (a minha) de uma fotógrafa que se torna pesquisadora em antropologia. Passando pelas interrogações iniciais, pelos conflitos metodológicos, até ao cruzamento entre a abordagem artística e a científica. O encontro da artista com a antropologia se deu na ação, durante a produção de uma fotoetnografia de um ritual de iniciação no Candomblé, uma religião afro-brasileira. O artigo propõe uma reflexão sobre a postura do pesquisador/artista e suas escolhas estéticas durante a produção e pós-produção de suas imagens.
Ore Nhembo'e: Cantando-Cançando pela cura da Terra
Authors: Ferraz Ana Lúcia
Published: December 2024

O Ensaio fotográfico aqui apresentado recupera as formas sensíveis do jeroky, o canto-dança dos Avá Guarani da fronteira Brasil-Paraguai. Esta prática que atua na comunicação com todas as agências invisíveis presentes na vida das aldeias, do espectro do que a antropologia nomeou como xamanismo, é a chave de compreensão da cosmopolítica dos povos guarani.
Acervos imagéticos do Porto de Suape: projetos de futuro, resistências do presente
Authors: Vailati Alex Giuliano , Acioli Maíra Souza e Silva
Published: December 2024

A construção do Complexo Industrial e Portuário do Complexo de Suape, no final da década de 1970, litoral sul de Pernambuco, propulsionou a produção imagética sobre a região envolvida. Dois acervos produzidos naquela época são aqui objeto de reflexão: um em formato Super 8, produzido por Carlos Cordeiro, na época assessor de imprensa do Complexo Industrial do Porto de Suape (CIPS); o segundo, fruto do trabalho de Sidney Waismann, fotógrafo do Programa Ecológico e Cultural do CIPS (PECCIPS). As questões que discutimos aqui surgiram do contato com as imagens e das ações de restituição realizadas desde 2022 na região. Considerando-os acervos encomendados por entidades ligadas ao CIPS, nos perguntamos: em que medida estas imagens podem ser lidas como uma dimensão formal e poética da infraestrutura construída? Que futuros elas projetavam? Pensando ainda nos impactos contínuos do CIPS, nos indagamos: quais as possibilidades que estas imagens carregam na construção de narrativas locais e movimentos de resistência?
Financial Performance, Company Size and Dividend Payout Ratio In Banking Companies
Authors: Putri Kesuma Savira , Nurhasanah
Published: December 2024

This study aims to analyze the effect of financial factors, Lagged Dividends, and company size on the Dividend Payout Ratio in banking companies listed on the Indonesia Stock Exchange (IDX) in 2017-2021. The population in this study were all banking companies listed on the IDX as many as 43 companies. The sample in this study was taken using the purposive sampling method so that there were 21 companies as the research sample. This research data was obtained through the publication of the Indonesia Stock Exchange and the websites of these companies. This study used  21 samples with 5 years of research  so that the total observations were 105 observations with the GMM method using the Eviews 12 application. The results of this study used a partial test (t test). Finds that Current Ratio, Return On Assets, Debt to Equity Ratio, Lagged Dividend, and Company Size variable has no significant effect on the Dividend Payout Ratio.
Financial Reporting Analysis of Micro, Small and Medium Enterprise (MSMEs): Study on Tenggo Coffee
Authors: Aylulliyah Dini , Naz’aina Naz’aina
Published: December 2024

This research aims to analyze financial recording for micro, small and medium enterprises (MSMEs). Data was obtained through interviews and observations of MSME actors. The data analysis technique uses qualitative descriptive analysis. The research results show that Tenggo Coffee  have not carried out financial recording and reporting. Furthermore, the majority of MSMEs have never attended financial management training, especially financial reporting. Therefore, MSME actors want training and assistance in financial reporting by the government or other institutions. This information is important for local governments and related agencies in the context of counseling and assisting business management in the future.
Spatial Analysis of Sosioeconomic Influences on Generation Z's Tranportation Mode Choice in Sidikalang City
Authors: Burhanuddin Burhanuddin , Dedi Safrinal  , Mudi Teuku , Fasdarsyah Fasdarsyah , Malasyi Syibral
Published: December 2024

Penelitian ini menganalisis pengaruh sosial ekonomi Generasi Z terhadap pemilihan moda transportasi di Kota Sidikalang dengan menggunakan pendekatan spasial. Tujuan utama penelitian ini adalah untuk mengetahui karakteristik sosial ekonomi yang mempengaruhi preferensi Generasi Z dalam memilih moda transportasi, baik kendaraan pribadi maupun umum, serta mengukur kemungkinan pemilihan moda melalui analisis regresi dan model logit biner. Data dikumpulkan melalui kuesioner dari 100 responden Generasi Z. Hasil penelitian menunjukkan bahwa 69% responden lebih menyukai kendaraan pribadi untuk bepergian, sedangkan 31% memilih transportasi umum. Karakteristik sosial ekonomi yang dominan meliputi jenis kelamin laki-laki (60%), usia 22-26 tahun (48%), pelajar/mahasiswa (59%), dan pendapatan bulanan kurang dari Rp500.000 (56%). Analisis regresi linier berganda menunjukkan bahwa kepemilikan kendaraan (X3) dan kenyamanan (X9) merupakan dua faktor signifikan yang mempengaruhi pemilihan moda transportasi. Pola pergerakan spasial menunjukkan titik asal yang kuat dari Kota Sidikalang terkait pemilihan moda transportasi, terutama bagi mereka yang memiliki kendaraan pribadi. Pola ini mendukung pentingnya kenyamanan dan ketersediaan kendaraan pribadi dalam preferensi transportasi Generasi Z. Temuan ini memberikan dasar bagi para pembuat kebijakan untuk meningkatkan transportasi umum dengan meningkatkan kenyamanan, guna mendorong Generasi Z untuk beralih dari kendaraan pribadi.
Validity analysis of the mathematical literacy test: implementation of the pancasila student profiles in instrument development
Authors: Sinaga Nurul Afni , Zahara Yulia , Aufa Zurra Yusally , Saragih Novilia Junianti
Published: December 2024

The background to this research is based on the need to improve students' mathematical literacy skills, which are integrated with character formation based on Pancasila values. This research aims to analyze the validity of the mathematics literacy test implemented with the Pancasila student profile in developing test instruments. This research uses the ADDIE (Analysis, Design, Development, Implementation, Evaluation) development model, with a focus on validation of the instruments developed. The instrument consists of 20 questions that were validated by media experts, material experts, and language experts. The research results show that media validation, material validation, and language validation are in the very valid category. Of the 20 questions, 1 question item was declared valid in the very high category, 2 questions were valid in the high category, 14 questions were valid in the medium category, and 3 questions were valid in the low category. The reliability of the instrument is classified as high with a value of 0.783. Apart from that, 7 questions have good differentiating power, while 13 questions have sufficient differentiating power. Based on the level of difficulty, 4 questions are in the difficult criteria, 14 questions are in the medium criteria, and 4 questions are in the easy criteria. These results indicate that the mathematical literacy test instrument developed generally has good validity and reliability and can be used as an effective measuring tool in evaluating students' mathematical literacy abilities, as well as integrating the values ​​of the Pancasila student profile.
Stock Prediction Of Single-Use Medicine Using Autoregressive Integrated Moving Average
Authors: Kamila Raisya , Abdullah Dahlan , Meiyanti Rini
Published: December 2024

Stock Prediction of Single-Use Medicine Using Autoregressive Integrated Moving Average  the(3, 1, 3) model, derived from the (p,q,d) model where p is the AR level, d is the process level that makes the data stationary, and q is the MA level. The (3, 1, 3) model used provides quite good results the ARIMA (3, 1, 3) model can be a good tool to predict the need for consumable drug stocks show that the ARIMA (3, 1, 3) model gives good results,log likelihood values and information criteria indicating that the model is reliable. Predictions for the demand for consumable drugs in 2025 show a downward trend, Requires further attention to understand the causes. health centres can plan drug procurement more precisely and efficiently meet patient needs without experiencing overstocks or shortages.
Analysis of Students’ Scientific Literacy Abilities on Science Learning in High School
Authors: Ayu Rahmi  , Syarifah Rita Zahara  , Sirry Alvina  , M. Ridwan Fadli  , Eka Juliana
Published: December 2024

The world of education plays an important role in civilization and the mobility of future generations. However, there are still weaknesses in the learning process, especially in methods that are monotonous and rely on memorization, which results in students having difficulty relating learning to real contexts. Science learning in schools emphasizes results, while the process is often neglected. Scientific literacy, which includes content, context, competencies and attitudes, is the focus of this research to improve students' scientific literacy abilities at the high school level. Data from the Program for International Students Assessment (PISA) shows that scientific literacy in Indonesia is still low. This research aims to analyze students' scientific literacy profiles. Data collection was carried out through scientific literacy questions that were validated constructively and empirically. The scientific literacy indicators measured include 1) Identifying valid scientific opinions; 2) Understanding of research design elements and their influence on findings; 3) Ability to complete tests or questions related to scientific phenomena; 4) Understanding and interpreting basic statistics; 5) Ability to draw conclusions, observe and make decisions based on data. Students' scientific literacy abilities are divided into very good, good, sufficient and poor categories. Based on the research results, it was found that the percentage of students in the very good category was 27.08%, in the good category was 31.25%, in the fair category was 36.45%, and in the low category was 5.20%. Based on these results, it can be concluded that the highest percentage describing students' scientific literacy abilities is at sufficient criteria. Therefore, it is important to increase students' scientific literacy.
The Involvement of the Gampong Government in Aceh in Recruiting Local Workers to Prevent Violent Community Conflicts in the Corporate Environment
Authors: Yunanda Rizki , Kemal Fasya Teuku , Meliza Richa , Kurniawati Kurniawati , Rizki Dini
Published: December 2024

In Indonesia, the presence of foreign workers (TKA) has increased rapidly, reaching 110,833 people in 2022, a jump of 25.6% compared to the previous year. Although the contribution of foreign workers in development and investment is undeniable, conflicts often arise between foreign workers and local workers. Dissatisfaction with transparency and fairness in the process of accepting local workers, involving the Gampong government, has led to social tensions. Social jealousy, in which local communities feel marginalized, is often a trigger for conflict. This study aims to understand the form of conflict resolution carried out by the Gampong government on the policy of accepting local workers in the Company's environmental villages and the steps taken by the Gampong government to align the policy of accepting local workers with the needs and aspirations of the people of the company's environmental villages. Perspective of conflict resolution theory. Data collection is carried out through Live in, observation, in-depth interviews and the use of documents. The data analysis process is carried out interactively through stages; data collection, data verification, data patterns, data coding, data thematic networks, meaning and drawing conclusions. The conflict related to the policy of accepting local workers in Dewantara District is caused by the community's dissatisfaction with the company's policies. The solution involves an inclusive approach and dialogue between the company, government, and community. Steps such as mapping labor needs, training, and collaboration between sectors are crucial to improving the quality of the local workforce.
The Role of Acehnese Women in Post-Conflict Local Economic Development in North Aceh Regency
Authors: Meliza Richa , Ikhsan Kamil Ade , Mujiburrahman Mujiburrahman , Riski Aflia , Yunanda Rizki , Nazwa Ramadhani Shah Diva , Bayhaqie Galang
Published: December 2024

This research focuses on the role of Acehnese women in post-conflict local economic development in North Aceh. Aceh is an area that has a long history of armed conflict, especially those related to the Free Aceh Movement (GAM) and the Indonesian government. This conflict lasted for more than three decades, which not only resulted in casualties, but also destroyed infrastructure, affected economic stability, and changed the social dynamics of Acehnese society. On this basis, this study seeks to identify what women experience, their strategies, structural and cultural barriers and their experiences in the local economy after conflict. Data collection is carried out through Live in, observation, in-depth interviews and the use of documents. The results of the study show that women in North Aceh play an important role in post-conflict economic development, driving the agriculture, micro enterprises, and handicraft sectors. They are active in the economic empowerment of families and communities, despite the challenges of accessing capital and education. Skills training programs help women increase their entrepreneurial capacity. In addition, they also play a role in post-conflict social reconciliation, improving intergroup relations, and fighting for women's rights in the peace process. Despite much progress, they still face difficulties in accessing education and gender equality in the job market.
IoT-Integrated Home Energy Management System with Real-Time Monitoring and Solar Panel Optimization
Authors: Mhd Firza Ryzaaldy  , Muhammad Fikry  , Said Fadlan Anshari
Published: December 2024

In this study, an IoT-integrated Home Energy Management System (HEMS) was developed using solar panels as the primary energy source. The system employs an ESP32 microcontroller as the core controller, equipped with DHT22, LDR, and INA219 sensors to monitor temperature, humidity, light intensity, voltage, and current. Real-time sensor data is presented on a web interface, allowing users to monitor system status and control devices like fans and lights either manually or automatically. The system demonstrated stable performance with a control response time of under one second and effective energy management aligned with environmental conditions. However, a key limitation was the limited capacity of the 10 Wp solar panel, particularly during low sunlight periods. To address this, enhancements such as improved load management or increased solar panel capacity are recommended. The system successfully implemented real-time monitoring and automated control, activating the fan at temperatures above 30 degrees Celsius and turning on lights when light intensity is below 1000 lux. This research highlights the potential of IoT technology in achieving efficient and sustainable home energy management.
Digital Marketing Strategies by Utilizing Google Trend Data Analysis on Increasing the Income of Micro, Small and Medium Enterprises (MSMEs) in Sawang, Aceh Utara
Authors: Ameliany Nanda , Ritonga Nursakinah , Muchlis Muchlis , Dedi Feriadi Dedi Feriadi , KN5 Jamiati
Published: December 2024

This research is motivated by the importance of optimizing digital marketing strategies for MSMEs in the digital era, especially in Sawang District, North Aceh. By utilizing Google Trends as a data analysis tool, the research aims to optimize digital[1]based marketing strategies for MSMEs in the region. The research method includes three main stages: 1) Data collection through surveys and short interviews with MSME players and data retrieval from Google Trends; 2) Data analysis using statistical techniques using population and sample size; 3) Development and implementation of digital marketing strategies based on the analysis results. The targeted outputs include an effective digital marketing strategy model for MSMEs, scientific publications, and improved digital marketing skills of MSME players. This research is at Technology Readiness Level (TKT) 6, where the model or design has been tested in a relevant environment. In this context, the developed digital marketing strategy will be tested and implemented on several MSMEs in Sawang Sub-district as samples, to validate its effectiveness and readiness for implementation on a wider scale.
Keywords: Data analysis, Google Trends, Digital marketing strategy, MSMEs
Learning Management System (LMS) In The Post-Pandemic Era: An Evaluative Review Of User Experience And Learning Outcomes
Authors: Unaida Ratna , Fakhrah Fakhrah , Lukman Isna
Published: December 2024

One of the online learning platforms that adopts a conventional learning approach but is managed online is the Learning Management System (LMS). LMS is not only easy to use but also encourages independent learning in a social environment for students, providing them with full control over their learning process. This study aims to explore the user experience of LMS post-pandemic. The method used in this study is descriptive qualitative research, which aims to uncover the facts, conditions, variables, and phenomena occurring at present. The subjects of this study are all teachers and students from high schools in the Dewantara District. The results of the study indicate that students are very enthusiastic about the learning process using the LMS application, as they find it easier to understand the material, which positively impacts their learning outcomes. Additionally, teachers show greater creativity in delivering learning materials. The use of LMS also facilitates teachers in assigning tasks to students, making the learning process more varied and no longer monotonous.
Yığma Yapılarda Güçlendirme Tekniklerinin Koruma İlkeleri ile İlişkilendirilmesi ve Mardin Tarihi Dokusunda Değerlendirilmesi
Authors: Kutlu İzzettin
Published: December 2024

Tarihi yapılar, deprem, kuvvetli rüzgâr, patlama gibi güçlü dış yüklere karşı savunmasız olduğundan, son yıllarda yığma yapılar ve elemanları için farklı güçlendirme yaklaşımları geliştirilmiştir. Yapıya uygulanacak en uygun güçlendirme yöntemini belirlemek için her bir tekniğin avantaj ve dezavantajlarının kapsamlı biçimde değerlendirilmesi gerekmektedir. Bu çalışma, farklı güçlendirme yöntemlerinin karşılaştırılmasını ve etkinliklerinin değerlendirilmesini amaçlamaktadır. Çalışmada sistematik literatür taraması, verilerin analizi ve koruma tüzüklerinin incelenmesi olmak üzere toplam 3 aşamalı bir metodoloji izlenmiştir. İlk aşamada, literatür taraması ile tarihi yapıların güçlendirilmesi konusunda ilgili önemli mevcut kaynaklara yer verilmiş ve önemli bir veri sunulmuştur. İkinci aşamada elde edilen sonuçlara ait veriler tablolaştırılmıştır. Son aşamada ise uluslararası koruma tüzükleri kapsamında geçen güçlendirme maddeleri ortaya konmuş ve tarihi yığma yapılara uygulanabilecek güçlendirme tekniklerinin değerlendirmelerine yer verilmiştir. Bu değerlendirmeler ile birlikte önemli kültürel miras eserlerine sahip Mardin’deki tarihi yapıların durumu analiz edilmiştir. Çalışmada, tarihi yığma yapılarının güçlendirilmesinde teknolojik gelişmeler ile birlikte uygun müdahalelerin gerçekleştirilmesinin analiz ve deneyler ile mümkün olduğu; Mardin tarihi dokusunda güçlendirme tekniklerine ihtiyaç duyulan birçok yığma yapı stoğunun var olduğu vurgulanmaktadır. Sonuç olarak, inşa edildiği döneme ait değerlerin nesiller arası aktarımında kritik öneme sahip olan mimari miras yapılarının gerektiği durumlarda uygun güçlendirme stratejileri ve projeler ile korunması büyük önem arz etmektedir.
Mobilya Sektöründe Modülerlik: Modüler Bir Pikap Ünitesinin Sistematik Tasarım Yaklaşımı ile Tasarımı ve Tasarım Tescil Süreci
Authors: Şanlıer Cemile , Yıldırım Zeynep Sude , Börklü Hüseyin Rıza
Published: December 2024

Geleneksel mobilya tasarımından farklı olarak, modüler mobilyalar, değişen yaşam tarzları ve mekân ihtiyaçlarına uyum sağlayarak kullanıcılar için esneklik sunmaktadır. Bu makalede, müzik hobisinin mobilya tercihlerine olan etkisi incelenerek, modüler mobilyaların müzik aletlerinin depolanması ve sergilenmesine olanak sağladığı görülmüştür. Niş bir müzik tercihi olan pikaplar için bir ürün tasarlanmasına karar verilmiştir. Sistematik tasarım yaklaşımının kavramsal tasarım ve şekillendirme tasarımı adımlarının kullanıldığı modüler bir pikap ünitesi tasarım projesi ele alınarak, modüler mobilya tasarımlarının günümüzdeki önemine ve mobilya pazarındaki müzik hobisinin etkisine odaklanılmıştır. Ayrıca tasarım ve tasarımcı haklarının korunması amacıyla Gazi Üniversitesi Teknoloji Transfer Ofisi desteği ile ürünün tasarım tescili alınmıştır. Ürünün ticarileşmesi için çalışmalar devam etmektedir. Bu çalışma, gelecekteki modüler mobilya tasarım projeleri ve tasarım tescil işlemi için ilham kaynağı olabilecek bir perspektif sunmaktadır.
Effects of Steam Addition to the Oxidizer on the Combustion Performance and Emissions of Coke Oven Gas: A Numerical Study
Authors: Kümük Osman
Published: December 2024

This study investigates the effects of adding steam to the oxidizer on the combustion behavior of coke oven gas through numerical simulations. The analysis used the commercial computational fluid dynamics (CFD) software Ansys Fluent. The results obtained for the case where dry air was used as the oxidizer were compared with experimental data. The k-Ɛ standard turbulence model was employed for turbulence modeling, while the PDF/Mixture Fraction combustion model and the P-1 radiation model were used for the three-dimensional numerical simulations. According to the simulation results, adding steam to the oxidizer slightly reduced the temperature of the COG. When assessing the emissions, it was observed that NOX emissions significantly decreased, while CO2 emissions showed a slight reduction. However, CO emissions were found to increase slightly. In conclusion, the study indicates that adding steam to the oxidizer significantly mitigates the high NOX emissions typically associated with using coke oven gas as an alternative fuel.