SciRepID - Scientific Publication Search

Publication Search

41,520 articles from 397 journals · 1,447 citations tracked

Showing 1-20 of 2,384

Analytics

Tasya Auliana Damanik; Laila Amalia

Jurnal Ilmu Kesehatan Umum, Psikolog, Keperawatan dan Kebidanan 2026 Asosiasi Riset Ilmu Kesehatan Indonesia

Rheumatoid arthritis (RA) is a daily disease seen in rheumatology clinics. It predominantly involves the appendicular skeleton. The axial skeleton is mostly spared except for the cervical spine where instability can occur and can be carefully assessed with cervical spine radiographs in flexion and extension. Radiographs may show erosion at the C1-C2 level with destruction of the transverse ligament that can result in atlantoaxial subluxation. Diagnosis is based on clinical, laboratory, and radiographic findings. Conventional radiography has been the mainstay for diagnosis of joint damage and subsequent follow-up. Radiography can provide only indirect information on synovial inflammation, however, and the technique is insensitive to early bone damage. Hand radiographs are frequently ordered as the first imaging modality in the assessment of patients presenting with peripheral arthritis. They can provide invaluable information about the bones, joints, mineralization, soft tissues and the distribution of abnormalities. Given the wide spectrum of rheumatic diseases, it might be challenging to make the diagnosis solely based on the clinical findings and imaging plays an important role in narrowing the differential diagnosis. Having the knowledge of the common radiographic manifestations of inflammatory arthritis is of paramount importance for clinicians and radiologists to diagnose the underlying disease in early stages of disease in order to start treatment. The purpose of the article is to review the key radiographic findings of common rheumatic diseases in the hands.

Thomson Siallagan

FUNDAMENTUM : Jurnal Pengabdian Multidisiplin 2026 Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

Churches and Christian institutions frequently face the challenge of congregations whose understanding of ministry remains confined to the spiritual dimension alone, while the holistic ministry mandate calls for active engagement across social, educational, and economic spheres. This study examines two primary objectives: first, how Christian Religious Education (CRE) shapes congregational understanding of holistic church ministry; and second, how CRE equips congregants with the concrete capacity to serve comprehensively. A qualitative approach with a case study design was employed at Yayasan Sola Gratia Medan. Data were gathered through in-depth interviews with seven informants comprising foundation leaders, program coordinators, active church members, volunteers, and beneficiaries. Analysis followed a thematic framework encompassing data reduction, display, and conclusion drawing. Findings reveal that: (1) consistent CRE implementation at Yayasan Sola Gratia has successfully shifted the congregational ministry paradigm from exclusively spiritual to holistically transformative; and (2) congregants who have internalized CRE values demonstrate more structured ministry capacity, stronger theological motivation, and significant cross-dimensional engagement. This research contributes a contextual CRE model relevant for church-based institutions operating in multidimensional urban environments.

Dina Hakiki; Sudi M. Al Sasongko; Made Sutha Yadnya

Jurnal Riset Rumpun Ilmu Teknik 2026 Pusat riset dan Inovasi Nasional

This study investigates the performance of Internet of Things (IoT)-based monitoring systems using a mobile hotspot and IoT sensors for temperature and humidity data transmission. The research is based on the IoT concept, which enables electronic devices to communicate and exchange data through internet networks without direct human intervention. System performance was evaluated using standard Quality of Service (QoS) parameters, including throughput, packet loss, delay, and jitter. The experimental setup utilized a NodeMCU ESP32 microcontroller and a DHT22 sensor, with measurements conducted at various transmission distances through wireless communication media. The objective was to determine the reliability of hotspot connectivity and sensor communication in supporting IoT applications. The results indicate that the optimal performance was achieved at a distance of 20 meters using a 40-lambda variation. Furthermore, the communication signal between the ESP32 device and the mobile hotspot remained detectable up to a maximum distance of 32 meters. These findings demonstrate the effectiveness of the proposed IoT system for environmental monitoring applications within specific transmission ranges.

Annisa Uljannah; Afiqah Divaulhaq

Jurnal Ilmu Kesehatan Umum, Psikolog, Keperawatan dan Kebidanan 2026 Asosiasi Riset Ilmu Kesehatan Indonesia

Hydrocephalus is defined as active distension of the brain’s ventricular system, resulting from inadequate flow of cerebrospinal fluid from its site of production to its site of absorption into the systemic circulation. Hydrocephalus can affect anyone at any age; pediatric hydrocephalus affects 1 in 1,000 live births and is the most common cause of brain surgery in young patients. Hydrocephalus is a pathological condition characterized by abnormal accumulation of cerebrospinal fluid (CSF) due to increased production, impaired flow, or reduced absorption. Ventricular enlargement occurs in response to increased CSF volume and can lead to structural damage to the brain parenchyma. This condition can be congenital or acquired. One key point in prenatal diagnosis is the differentiation between fetal hydrocephalus and non-hypertensive ventriculomegaly. The former qualifies for intrauterine treatment with good outcomes. However, the latter can result in either favorable or catastrophic outcomes due to a damaging etiology, as seen in viral infections such as Zika virus. For an accurate diagnosis, fetal MRI is performed to detect brain anomalies, in addition to fetal ultrasound (to detect common complications), karyotype testing, and TORCH testing (toxoplasma, rubella, cytomegalovirus, herpes simplex). Obstetric management of fetal hydrocephalus depends on the gestational age at diagnosis and the presence of other anomalies. Treatment options include termination of pregnancy before the fetus is viable, placement of a ventriculoamniotic shunt, cephalocentesis before delivery, and/or cesarean section.

Stefany, Fadean; Ghazali, Imam; Hanina Trisnanda, Salma; Maulidia, Putri

Komunitas: Hasil Kegiatan Pengabdian Masyarakat Indonesia 2026 Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Anemia masih menjadi problematika gizi utama pada remaja putri di Indonesia yang berdampak buruk terhadap performa akademik serta kesehatan reproduksi jangka panjang. Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan pengetahuan dan kesadaran gizi terkait pencegahan anemia melalui intervensi edukasi sadar gizi di SMAN 1 Sampang. Metode yang diterapkan berbasis pendekatan partisipatif interaktif, meliputi ceramah, pemanfaatan media visual (leaflet dan poster), simulasi penyusunan menu sehat kaya zat besi, serta kuis edukatif. Evaluasi program diukur secara kuantitatif melalui instrumen pre-test dan post-test, serta secara kualitatif melalui observasi keaktifan peserta. Hasil pelaksanaan menunjukkan adanya peningkatan pemahaman yang signifikan mengenai definisi, dampak, dan pencegahan anemia, serta perubahan sikap positif terhadap pola konsumsi seimbang dan kepatuhan sarapan. Kesimpulannya, edukasi gizi yang terstruktur dan interaktif terbukti efektif dalam membangun kesadaran kesehatan remaja, sehingga dapat dijadikan strategi preventif yang berkelanjutan di lingkungan sekolah.

Yuliana, Rita; Abrori, Rian; Emilia Sula, Atik

Komunitas: Hasil Kegiatan Pengabdian Masyarakat Indonesia 2026 Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Pengabdian ini bertujuan memperkuat akuntabilitas pengelolaan dana pembangunan masjid melalui penyusunan informasi keuangan berbasis ISAK 335. Pengabdian menggunakan pendekatan Participatory Action Research (PAR) melalui observasi, wawancara, dan pendampingan penyusunan laporan keuangan. Kegiatan dilakukan melalui klasifikasi transaksi, penyusunan laporan keuangan, serta analisis efisiensi dan partisipasi donatur. Hasil pengabdian berupa tersusunnya laporan keuangan pembangunan masjid yang lebih sistematis dan informatif. Takmir memperoleh pemahaman mengenai efisiensi penggunaan dana dan pola partisipasi masyarakat. Transparansi laporan keuangan juga memperkuat kepercayaan jamaah terhadap pengelolaan dana pembangunan. Pengabdian ini berdampak pada penguatan tata kelola, akuntabilitas, dan keberlanjutan partisipasi masyarakat dalam memakmurkan masjid.

Gusni Cahaya Putri; Evandito Raihan Prayoga; Abram Sahing; Febri Gumelar

Prosiding Seminar Nasional Ilmu Hukum 2026 Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

The development of information and communication technology has increased the use of electronic documents in legal and business activities, thereby affecting the evidentiary system in Indonesian civil procedural law. This study aims to analyze the legal regulation of electronic evidence and its evidentiary strength in resolving civil cases under Indonesian civil procedural law. The research method used is normative juridical research with statutory and library research approaches. The data were obtained from primary and secondary legal materials and analyzed qualitatively. The results show that electronic evidence has been legally recognized through Law Number 11 of 2008 in conjunction with Law Number 19 of 2016 concerning Electronic Information and Transactions. Its evidentiary strength has the same legal position as other forms of evidence as long as it fulfills the requirements of authenticity, integrity, and validity of electronic data. Therefore, more detailed regulations regarding authentication standards and examination procedures for electronic evidence are still needed to ensure legal certainty in civil court practices.

Fredy Ied Fitriadi; Aldhitama Ramadhan; Fasub Hanal; Jimmi MP Aritonang

Prosiding Seminar Nasional Ilmu Hukum 2026 Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

This study examines the foundational framework and evolving dynamics of Indonesian civil procedural law (Hukum Acara Perdata) amid its transformation from colonial legal heritage toward a modern, digitalized justice system. Using normative-doctrinal legal research methodology combined with empirical court statistics from 2022–2024, the study analyzes four dimensions: (1) core procedural principles rooted in the HIR and RBg; (2) the mandatory mediation framework under PERMA No. 1 of 2016; (3) the evolution of evidence law toward electronic evidence under the amended UU ITE (Law No. 1 of 2024); and (4) mechanisms of judicial decisions and legal remedies. Findings show that e-court implementation has dramatically increased efficiency minutasi productivity rose from 64.35% (2022) to 96.50% (2024)—while 594,816 users registered through e-court by 2023. The study concludes that Indonesia’s civil procedural law is actively adapting to technological disruption, though structural challenges such as digital inequality, electronic evidence authentication gaps, and regulatory harmonization remain unresolved.

Susy Putri Wihadi; Alfred Ariyanto; Nunuk Jati Saputri; Thomas Mulyanto Kurniawan

Prosiding Seminar Nasional Ilmu Hukum 2026 Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

The digital transformation of the Indonesian judicial system through the implementation of e-court and e-litigation necessitates a redefinition of conventional evidentiary laws, which have historically been governed by the Herziene Inlandsch Reglement (HIR) and the Rechtreglement voor de Buitengewesten (RBg). This research aims to analyze the evidentiary strength of electronic documents as expanded means of proof in civil proceedings and to identify the challenges regarding their implementation. The research method employed is normative legal research using a statutory approach and a conceptual approach. The findings indicate that based on the principle of functional equivalence, electronic documents hold a legal status equivalent to paper-based documents, provided they meet the requirements of integrity, accessibility, and authenticity through certified electronic signatures as mandated by Law Number 1 of 2024 concerning Electronic Information and Transactions. The evidentiary strength of an electronic document may reach the level of conclusive evidence, similar to an authentic deed, if supported by a reliable electronic system. However, implementation still faces technical hurdles concerning metadata verification and limited human resource competency within the judiciary. This research recommends the urgent need for a new codification of civil procedural law and the standardization of digital forensic procedures in trials to ensure legal certainty and justice for all parties in the digital era.

Huliandro Di’Almon Pan

Sukacita : Jurnal Pendidikan Iman Kristen 2026 Asosiasi Riset Ilmu Pendidikan Agama dan Filsafat Indonesia

This study aims to analyze the participation of the faithful in the Sacrament of Penance and to identify the pastoral challenges influencing its practice in the Vicariate of West Sulawesi, Archdiocese of Makassar. Theologically, the Sacrament of Penance serves as a means of reconciliation that restores the relationship between humanity, God, and the Church. However, in contemporary contexts, its practice encounters various social, psychological, and pastoral dynamics. This research employed a descriptive quantitative approach involving 267 respondents from four parishes through questionnaire distribution. The data were analyzed using percentage-based statistics to map participation frequency, spiritual motivation, level of understanding, post-sacramental experiences, and perceived obstacles. The findings indicate that although most respondents demonstrate strong theological understanding, sincere spiritual motivation, and positive spiritual experiences after receiving absolution, participation remains largely seasonal and periodic. The principal challenges include psychological factors such as shame and anxiety, structural limitations related to schedule and accessibility, and formative deficiencies such as insufficient ongoing catechesis. The study concludes that the primary issue is not a crisis of faith in the sacrament itself, but a gap between theological awareness and concrete practice, thus calling for more dialogical, communicative, and contextual pastoral renewal.

Farhan Maulana Arli; Diva Datul Isma

Karakter : Jurnal Riset Ilmu Pendidikan Islam 2026 Asosiasi Riset Ilmu Pendidikan Agama dan Filsafat Indonesia

The presence of Generation Z, who grew up entirely in the digital era, has triggered a fundamental transformation in Muslim religious practices, where social media has replaced conventional religious institutions as the primary source of religious information. This condition creates a paradox: Gen Z has become a generation that is highly religious online, yet is often disconnected from physical communities and traditional religious authorities. This study aims to analyze the character of Muslim Gen Z religiosity, identify its forming factors, and examine the impact of the digital era on their religiosity. This study employed a descriptive qualitative approach using a library research method. The findings indicate that Muslim Gen Z religiosity is characterized by personalization, flexibility, and digital spirituality, strongly influenced by social media. These characteristics are shaped by massive digital technology accessibility, the effectiveness of contextual Islamic preaching on platforms such as TikTok, as well as spiritual needs and social pressure from the digital environment. The digital era brings positive impacts in the form of increased accessibility and religious literacy, but also negative impacts including shallow religious understanding, vulnerability to information bias, and potential exposure to extreme ideologies. This study implies the importance of an integrated digital religious literacy strategy through critical thinking-based Islamic Religious Education curriculum reform, enhancement of educators' digital capacity, and cross-sector collaboration to strengthen Gen Z's moderate and reflective religious understanding.

Meilani Ely Nur Sya'diah; Moh. Iskak Elly; Dyah Ayu Perwitasari

Jurnal Publikasi Ekonomi dan Akuntansi 2026 Asosiasi Riset Ekonomi dan Akuntansi Indonesia

This research aims to analyze the implications of the transition in lease accounting standards to PSAK 73 on tax efficiency levels and net income structures within the retail industry, focusing on PT Mitra Adiperkasa Tbk as case studies. Employing a descriptive quantitative method, this research compares financial statement data from the 2017-2024 period to evaluate shifts before and after the regulation's enforcement. The results reveal that the implementation of PSAK 73 successfully improved corporate tax efficiency, characterized by a decrease in the Effective Tax Rate (ETR) below the statutory corporate tax rate. This was achieved by leveraging temporary differences that resulted in the recognition of deferred tax assets, providing a strategic advantage in the form of tax deferral. On the other hand, the application of this standard caused significant pressure on net profit during the initial transition phase due to the front-loading expense pattern derived from right-of-use asset depreciation and lease liability interest.

Muhammad Faza Kamil; Syamsul Hadi; Ulil Albab Abdillah; Faiqur Rizal Fajriminallah; Jason Andreas Hudi Prayoga

Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer 2026 Asosiasi Riset Teknik Elektro dan Informatika Indonesia

The problem lies in the quality of the umbrella nails for asbestos or zinc roofs which often experience damage to the nail head is not large enough, the tip of the nail is blunt, thus damaging the roof material, and susceptibility to corrosion due to weather, and slow manual production. The purpose of making is to obtain umbrella nails with a length of 50 mm and a diameter of 2.5 mm which are strong, pointed tips, relatively fast. The manufacturing method includes: making cylindrical umbrella pieces from 2 mm thick aluminum with a diameter of 25 mm and a 1.5 mm hole center, selecting raw materials for low carbon steel wire, AISI 1020 in the form of a 3 mm diameter coil, straightening and reducing the cross-section of wire using a die (wire drawing),, forming the nail head (cold heading), mechanically cutting the pointed end, forming the nail umbrella from cylindrical pieces that have been inserted with 50 mm long nails and pressed, immersing the umbrella nails in 500oC zinc liquid (galvanizing) for 2 minutes, checking dimensions and quality standards. The manufacturing results are in the form of strong zinc-coated thumbtacks measuring 50 mm in length, 2.5 mm in diameter, 1.2 mm in thickness of the thumbtack plate, total production cost of IDR 340/unit, and process duration of 12 seconds/unit, which implies that the need for strong and corrosion-resistant thumbtacks can be met for various related engineering needs.

Albertus Niko Liswanto; Hepriyandi L. Djanas Usup; Ferdinandus Ferdinandus; Wiryanto Wiryanto; Asri Fridtriyanda

Jurnal Riset Rumpun Ilmu Teknik 2026 Pusat riset dan Inovasi Nasional

This study aims to analyze a comparison of coal stockpile volumes using the DJI Mavic 3 Pro Unmanned Aerial Vehicle (UAV) method versus the truck count method at PT. Mitra Barito. Data collection was conducted through aerial photography using a UAV at altitudes of 60 meters and 70 meters, as well as Ground Control Point (GCP) measurements using GPS. The aerial imagery data was processed using photogrammetry software to generate orthophotos and a Digital Elevation Model (DEM), followed by a geometric accuracy test based on the Geospatial Information Agency Regulation No. 6 of 2018, using the Circular Error 90% (CE90) and Linear Error 90% (LE90) parameters. The research results show that high-quality processing at an altitude of 60 meters yields a CE90 value of 2.1619 meters and an LE90 value of 4.3656 meters, thereby meeting the accuracy standards for RBI maps at a scale of 1:5,000, Class 3 for horizontal accuracy, and a scale of 1:10,000, Class 3 for vertical accuracy. Volume calculations of the stockpile using UAVs yielded a result of 22,750.900 m³, while the truck count method produced a volume of 23,503.300 m³. The volume difference between the two methods was 753.400 m³, with a deviation percentage of 3.2%. Based on the research results, the UAV method is considered capable of providing relatively accurate calculations of coal stockpile volume.

Bonifasius Laksana Matahari; Tjang, Yanto Sandy; Amandus Suhaedi Dol; Bonifasius Bonifasius; Budi Tjahja Halim +3 more

jurnal Riset Rumpun Agama dan Filsafat 2026 Pusat Riset dan Inovasi Nasional

The study highlights the importance of spirituality as a foundational framework for shaping adolescents’ life orientation in the complex digital era, marked by pervasive distractions and fragmented meaning. Ignatian spirituality, emphasizing reflection and lived experience as loci of encounter with God, provides a contextual approach to help adolescents construct deeper existential meaning. The study aims to examine how reflective practices within this framework support students of SMK Katolik St. Mikael Surakarta in internalizing spiritual values and navigating digital challenges. Using a qualitative descriptive case study design, data were collected from 195 reflective writings of twelfth-grade students and reduced to 90 representative samples. The film Hacksaw Ridge was employed as a reflective stimulus to enhance affective and existential engagement. Data analysis was conducted using the four pillars of Jesuit education: Competence, Conscience, Compassion, and Commitment. The findings reveal that all reflections contain at least one element of the 4C framework integrated with Ignatian spirituality. Reflection serves not only as a medium of self-expression but also as a transformative process fostering moral awareness, social sensitivity, and commitment to action. It effectively enables students to process both personal and digital experiences into meaningful learning. The study affirms the strong relevance of integrating spirituality, reflection, and Ignatian pedagogy in contemporary education, contributing to the formation of reflective, value-oriented individuals committed to the common good.

Inigo Sang Arya Nagarjuna; Yanto Sandy Tjang; Paula Leony Putri Terigas; Joyce Anggraeni; Rosalia Enny Astuti +3 more

jurnal Riset Rumpun Agama dan Filsafat 2026 Pusat Riset dan Inovasi Nasional

The rapid development of digital technology has significantly transformed the ways in which faith is experienced, particularly in the lives of adolescents. From the perspectives of digital religion and mediatization of religion, digital space is no longer merely a medium, but has become a cultural arena that actively shapes religious practices and meanings. The study aims to analyze these dynamics, especially within the context of Generation Alpha, by examining the opportunities and challenges that emerge in the lived experience of faith in the digital age. The findings indicate that digital environments offer creative, participatory, and contextual opportunities for evangelization, enabling young people to engage actively in constructing their religious experiences. However, this dynamic is inherently ambivalent, as it also risks reducing the meaning of faith to symbolic, instant, and less sacramentally grounded experiences, detached from the communal life of the Church. Furthermore, the formation of religious identity in digital spaces tends to be fluid and performative, potentially leading to superficial relationships and fragmented identities. Therefore, technologically mediated religious experience should be understood as a bridge, rather than a substitute, for authentic faith encounters. The Church is thus called to adopt adaptive and reflective pastoral approaches, positioning media as a means of fostering communio without obscuring the essence of faith. An integrative approach through the synergy of Church, family, and educational institutions is essential to balance digital literacy and spiritual depth, ensuring that adolescent faith continues to grow reflectively and remains rooted in real-life experience.

Maximilian Edward Tjang; Timothy Arthur Harrison; Evan William Woo; Yanto Sandy Tjang; Maria Francisca Widyastuti Estiningtyas +1 more

jurnal Riset Rumpun Agama dan Filsafat 2026 Pusat Riset dan Inovasi Nasional

The study aims to analyze the role of digital media as a distracting factor affecting the faith loyalty of Catholic adolescents in their relationship with God amid religious pluralism in Indonesia. The development of digital media has transformed how adolescents understand, express, and live out their faith, while simultaneously presenting both opportunities and ambivalent challenges. This research employs a qualitative approach using a library research method, analyzing various theological, sociological sources, and Church documents. The findings indicate that digital media can serve as a broad and participatory space for expressing faith, but it also has the potential to create distractions in three main dimensions: cognitive, affective, and practical. Cognitively, adolescents experience confusion in understanding faith teachings due to the diversity of information available. Affectively, there is a shift in orientation from a relationship with God toward the pursuit of emotional gratification in digital spaces. Practically, there is a decline in engagement in concrete religious practices. Within the context of religious pluralism, this complexity intensifies and influences the formation of adolescents’ faith identity. This study also finds that digital media does not only have negative impacts but also holds positive potential as a means of deepening faith when used critically and reflectively. Therefore, the role of the Church is essential through contextual, dialogical, and integrative pastoral accompaniment combined with critical digital literacy. Through this approach, adolescents are expected to integrate their digital experiences into a more mature, authentic faith life rooted in a deeper relationship with God.

Agisni Bepi Rosadi; Alya Nur Fauziyah; Fatihul Noer Ihsan; Nabilla Nur Amalia

Jurnal Manajemen dan Pendidikan Agama Islam 2026 Asosiasi Riset Pendidikan Agama dan Filsafat Indonesia

The field of education, especially Islamic Religious Education (PAI), has seen substantial changes as a result of the advancement of digital technology and artificial intelligence (AI). The existence of digital media and AI offers numerous opportunities to improve the effectiveness, efficiency, and quality of education through interactive, flexible, and easily accessible learning resources. The purpose of this article is to analyze how artificial intelligence (AI) and digital media are used in Islamic Religious Education. This includes the idea of AI and digital media, AI-based learning materials, the use of AI in educational activities, ethical considerations of AI use, the effects and difficulties of integrating AI, and the Islamic viewpoint on technological advancement. This study employed a library research method by collecting data from relevant journals, books, and other scholarly sources. The findings indicate that the use of AI and digital media in PAI learning can enhance access to information, personalize learning experiences, improve evaluation effectiveness, and increase student engagement in the learning process. However, the implementation of AI also presents several challenges, such as limited digital literacy among teachers, inadequate facilities and infrastructure, ethical concerns, and the potential decline of direct educational interaction between teachers and students. Therefore, the utilization of AI in Islamic Religious Education should be carried out wisely while maintaining Islamic values, ethics, and the primary goal of Islamic education in shaping students’ character.

Dadang Iskandar Mulyana; Sopan Adrianto; Sugiyono Sugiyono; Muflikhan Dimas Dwiprayogi

International Journal of Applied Mathematics and Computing 2026 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

The dissemination of personal data through digital media has increased significantly alongside the growing use of Quick Response (QR) Codes for various purposes, such as electronic tickets, certificates, and digital identities. Conventional QR Codes are open and can be easily scanned, copied, or manipulated by unauthorized parties. The personal data referred to in this study includes sensitive information such as full name, identity number (NIK/National ID), date of birth, address, phone number, and email address. This research proposes a layered security system that combines the Advanced Encryption Standard (AES) cryptographic algorithm with steganography using the Discrete Cosine Transform (DCT) method. The process begins with encrypting personal data using AES, converting the encrypted result into a QR Code, and embedding the QR Code into a digital image using DCT, hiding it in the image’s frequency domain. The digital images used are of fixed size and formats that preserve visual quality. System evaluation is carried out by testing the visual quality of the stego image, the success rate of QR Code extraction, and the integrity of the encrypted data. The results are expected to conceal sensitive information visually while maintaining its confidentiality, with potential applications in electronic ID cards, digital certificates, e-tickets, and other confidential documents.

Yuma Akbar; Frencis Matheos Sarimolle; Dwi Swasono Rachmad; Muhammad Derry Oktaviandi

International Journal of Applied Mathematics and Computing 2026 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

This study aims to analyze public sentiment toward the hashtag #KaburAjaDulu, which has circulated widely on the social media platform X (formerly Twitter). The hashtag reflects the growing anxiety among the public, especially younger generations, regarding socio-political issues in Indonesia. The data were collected using web scraping techniques, focusing on user-generated tweets that contain the hashtag. A comprehensive text preprocessing phase was conducted to clean the raw data by removing irrelevant elements such as URLs, emojis, numbers, and punctuation. The research applies a hybrid classification approach using a combination of Support Vector Machine (SVM) and Random Forest algorithms to categorize sentiment into three classes: positive, negative, and neutral. The performance of the model was evaluated using metrics such as accuracy, precision, recall, and F1-score to determine the effectiveness of the classification. The study aims to demonstrate that combining algorithms can improve classification performance compared to using a single algorithm. This research contributes to the field of sentiment analysis and provides valuable insights for researchers, policymakers, and social observers in understanding public opinion trends in digital media.