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Menampilkan 1–10 dari 478 artikel
Numerical Modeling of Stress Ratios in Single-Lap Adhesive Joints with Geometrical Modifications
Kurnia, Asep
; Setya Putra, Ichsan
; Syamsudin, Hendri
; Giri Suada, Muhamad
; Demas Priambudi, Oktavianus
This study aims to analyze the effect of variations in aluminum strip geometry and Araldite adhesive on the mechanical strength of single lap joints. A two-dimensional numerical model was developed in Abaqus/Standard using cohesive zone elements, the Benzeggagh-Kenane (B-K) model, and a quadratic stress criterion to validate the experimental results. The results show that the developed model is capable of accurately describing the stress distribution and the effect of secondary bending moments t...
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Low-Dose Salinomycin Targets Multidrug Resistance via P-Glycoprotein and NF-κB in Osteosarcoma Cells
Ayu, Onarisa
; Rusda, Muhammad
; Sembiring, Rosita Juwita
; Nasution, Iqbal Pahlevi Adeputra
; Mahyudin, Ferdiansyah
; Amin, Mustafa Mahmud
; Pasaribu, Hotma Partogi
; Tobing, Tina Christina Lumban
Chemotherapy resistance in osteosarcoma remains a major clinical obstacle, largely driven by drug efflux mechanisms mediated by P-glycoprotein (ACBC1/ABCB1) and activation of NF-κB signaling (NFKB1). This study investigated the potential of Salinomycin to modulate these multidrug resistance–associated genes in U2OS osteosarcoma cells and explore its role in overcoming chemoresistance. A true experimental post-test-only control group design was used. U2OS cells were treated with varying concentra...
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A CIA-based Sustainable Security Risk Mitigation Model for E-Certificate Systems
Suharsono, Teguh Nurhadi
; Choi , John
; Agusiady , Raden Ricky
; Saepudin, Didin
; Sukadwilinda
; Purwanto, Heri
; Savitri , Peti
; Munastha, Ketut Abimanyu
E-certificates are increasingly adopted across sectors, yet existing studies have not developed an integrated risk mitigation model that combines CIA-based sustainable security with operational and stakeholder perspectives. Current frameworks primarily address isolated technical risks or focus on general PKI security, leaving a gap in holistic modeling tailored to end-to-end e-certificate implementation. This study addresses this gap by proposing a Sustainable Security Risk Mitigation Model for...
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Perfectionism of gifted students’ long term psychological impact: A qualitative study
Rahmawati, Ajeng Intan Nur
; Hidayah, Nur
; Muslihati , Muslihati
; Rahman, Diniy Hidayatur
; Ariffudin, Imam
Gifted students often perform under pressure and high expectations while also carrying perfectionistic standards. This study analyzes the psychological impact on gifted students and giftedness program alumni with high perfectionism. The research design used a phenomenological study and utilized a purposive sampling technique on five subjects. Data were collected through semi-structured interviews, using thematic analysis assisted by NVivo 12 software. Validity testing in this study included jour...
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Development of contextual learning-based mathematics teaching modules on rational number materials
This research aims to develop a mathematics teaching module on rational number material for grade VII junior high school students that is valid, practical, and effective. This research is motivated by students' limited understanding of rational numbers and by the limitations of teaching materials that fail to connect the material to real-life contexts systematically. The research gap lies in the limited development of contextual modules that not only focus on validity and practicality but also c...
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In Vitro Degradation and Mechanical Performance of Mg AZ31B for Biodegradable Bone Implant Applications
Magnesium AZ31B is a promising biodegradable implant material due to its mechanical properties comparable to natural bone and its ability to degrade in physiological environments, potentially eliminating the need for secondary surgery. However, its rapid degradation can cause a significant loss of mechanical integrity, limiting its use in load-bearing applications. This study investigates the evolution of mechanical properties and surface characteristics of AZ31B during in-vitro immersion in Sim...
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Sistem Informasi Tes Psikologis Berbasis Web (E-Psychotes) untuk Seleksi Calon Anggota Kepolisian Nasional Indonesia (Studi Kasus: Kepolisian Daerah Jawa Tengah)
Subekti, Syawaludin
; Hartono, Budi
; Santoso, Lukman
; Subekti, Syawaludin
; Hartono, Budi
; Santoso, Lukman
JUISI : Jurnal Ilmiah Sistem Informasi
Vol 16
, No 2
(2026)
Tes psikologis yang handal dan objektif sangat penting dalam perekrutan anggota Kepolisian Nasional Indonesia untuk memastikan seleksi kandidat yang berkualitas. Namun, metode pengujian psikologis konvensional seringkali memakan waktu, rentan terhadap kesalahan manusia, dan kurang transparan dalam pengolahan data dan manajemen hasil. Studi ini bertujuan untuk merancang dan mengimplementasikan Sistem Informasi Pengujian Psikologis Berbasis Web (E-Psikotes) untuk mendukung proses seleksi psikologi...
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Analisis Pola Global dan Lokal Determinan Prevalensi Stunting di Jawa Tengah Tahun 2024 Menggunakan Geographically Weighted Regression
Nugroho, Ivan Wahyu
; Febriansyah, Candra Rifki Eka
; Rahmadhani, Oktavia Suci
; Murti, Basugandhi Sasangka
; Sabil, Safina
; Zuhdi, Shaifudin
; Shaifudin Zuhdi, Universitas Sebelas Maret, Fakultas Teknologi Informasi dan Sains Data
Jurnal Kesehatan Masyarakat Indonesia
Vol 21
, No 1
(2026)
Latar belakang: Stunting masih menjadi permasalahan kesehatan masyarakat yang serius di Indonesia, salah satunya di Jawa Tengah. Pendekatan analisis global sering kali belum mampu menangkap perbedaan pengaruh determinan stunting secara local. Tujuan: Penelitian ini bertujuan untuk mengidentifikasi pola global dan lokal determinan stunting di Jawa Tengah menggunakan. Metode: Penelitian kuantitatif ini menggunakan data sekunder agregat dari 35 kabupaten/kota di Jawa Tengah. Analisis dilakukan meng...
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Optimization of Coconut Fiber and Styrofoam Composition in Concrete to Improve Strength and Sound Absorption
Purwanto
; Firmawan, Ferry
; Ahmad, Fahrudin
; Purwanti, Hani
; Husna, Aimmatul
; Darus, Nadirah
; Haron, Zaiton
; Yahya, Khairulzan
This study aimed to evaluate the effect of coconut husk and Expanded Polystyrene (EPS) composition on the mechanical and acoustic properties of lightweight concrete. The research was conducted experimentally using a two-way factorial design with coconut husk variations of 0%, 0.5%, 1%, 1.5%, and 2% of cement weight and EPS variations of 0%, 10%, 20%, and 30% of coarse aggregate volume. A total of 20 mix variations (5 coir levels × 4 EPS levels) were prepared with three replications for each test...
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Transformasi Perilaku Wisatawan dalam Aktivitas Pendakian Gunung: Motivasi, Mediasi Digital, dan Dinamika Sosial di Era Postmodern
Irianto Putra, Adhika Graha
; Dwi Hadian, Mohammad Sapari
; Nugraha, Awaludin
; Maharani, Najla Raisa
Jurnal Riset sosial humaniora, dan Pendidikan (Soshumdik)
Vol 5
, No 1
(2026)
This study aims to analyze the transformation of tourist behavior in mountain hiking activities in the Sindoro, Sumbing, and Slamet (3S) area of Central Java within the context of nature-based tourism trends and digital mediation. A descriptive qualitative approach was employed, involving eight purposively selected hikers. Data were collected through semi-structured interviews, participant observation, and analysis of social media posts. The findings reveal a shift in motivation from physical ch...
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