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All Journal Padjadjaran Journal of Dentistry PEDADIDAKTIKA: Jurnal Ilmiah Pendidikan Guru Sekolah Dasar Jurnal Teknologi Komputer dan Informatika Socius: Social Sciences Research Journal Journal of Physics Education and Science
Khairunnisa, Zahra
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Religion Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Analisis Metode Pembelajaran Learning Start with A Question dalam Peningkatan Pemahaman Konsep IPS di Kelas V Sekolah Dasar Khairunnisa, Zahra; Karlimah, Karlimah; Setiadi, Pidi Mohamad
PEDADIDAKTIKA: Jurnal Ilmiah Pendidikan Guru Sekolah Dasar Vol 11, No 2 (2024): PEDADIDAKTIKA
Publisher : Program Studi PGSD UPI Kampus Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/pedadidaktika.v11i2.74393

Abstract

Penentuan Nilai Sun Protection Faktor (SPF) Ekstrak Etanol Daun Senduduk (Melastoma malabathricum L.) menggunakan Spektrofotometer UV-Vis Yani, Dwi Fitri; Hendrata, Mahesa; Berlian, Sindi; Puspita, Sinta; Khairunnisa, Zahra
Journal of Physics Education and Science Vol. 2 No. 1 (2024): December
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/physics.v2i1.1219

Abstract

Indonesia merupakan negara tropis yang selalu disinari matahari sepanjang tahun. Sinar matahari dapat berdampak buruk bagi kesehatan kulit karena mengandung sinar ultra violet. Oleh karena itu, penting untuk mencegah efek buruk paparan sinar matahari dengan menghindari paparan yang berlebihan dengan menggunakan tabir surya. Penelitian ini bertujuan untuk mengetahui potensi tabir surya pada tanaman daun senduduk (Melastoma malabathricum L.). Penelitian ini dilakukan dengan menggunakan spektrofotometer UV-Vis untuk penentuan nilai SPF. Hasil ekstrak etanol daun senduduk positif mengandung alkaloid, flavanoid, saponin, steroid, dan tanin. Nilai SPF yang dihasilkan dari ekstrak etanol daun senduduk konsentrasi 100 ; 400 ; dan 700 ppm menghasilkan nilai SPF sebesar 17,28 ; 31,4 ; dan 40 yang dikategorikan sebagai proteksi ultra.
Pengaruh Beban Tugas Akademik Terhadap Tingkat Stres Mahasiswa Fakultas Dakwah dan Ilmu Komunikasi UIN Syarif Hidayatullah Jakarta Irvanti, Risyanka Nafishafara; Khairunnisa, Zahra; N, Nurhasanah; Kosasi, Ferdiansyah Ishaq
Socius: Jurnal Penelitian Ilmu-Ilmu Sosial Vol 2, No 11 (2025): June, 2025
Publisher : Penerbit Yayasan Daarul Huda Kruengmane

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Abstract

Academic stress is a form of psychological pressure that arises due to an imbalance between the demands of lectures and the ability of individuals to meet these demands. This study aims to determine the effect of academic task load on the stress level of students of the Faculty of Da’wah and Communication Sciences of UIN Syarif Hidayatullah Jakarta. This research uses a quantitative approach with descriptive methods, and involves 41 students as respondents selected by purposive sampling technique. Data instruments in the form of questionnaires have been tested for validity and reliability. The results of this study show that there is a significant influence between academic task load on student stress levels. R Square is 0.527, which means that the academic task load contributes 52.7% to the stress level of students, while the remaining 47.3% is influenced by other factors outside the X variable. 
MENELUSURI BATASAN KECERDASAN BUATAN: TANTANGAN DAN PELUANG TEORITIS Hasna Kamila, Nayla; Amelia, Shely; Awalina, Syifa; Khairunnisa, Zahra; Fanani, Ikhsan
Jurnal Teknologi Komputer dan Informatika Vol 3 No 1 (2024): Jurnal Teknologi Komputer dan Informatika (TEKOMIN)
Publisher : LPPM Politeknik Pajajaran ICB Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59820/tekomin.v3i1.317

Abstract

Advancements in the field of Artificial Intelligence (AI) have led to the development of systems capable of ef iciently solving various complex tasks. However, behind these achievements lie significant theoretical challenges that limit AI's capabilities. This article discusses the primary limitations of AI, including computational complexity, dif iculties in generalization, knowledge representation constraints, and challenges related to bias and ethical implications. Furthermore, it explores opportunities arising from these limitations, such as the development of hybrid models, energy-ef icient approaches, and improved algorithm interpretability. By examining these challenges and opportunities, this study aims to provide deeper insights into the future direction of AI development. An interdisciplinary approach is proposed as the key to addressing theoretical challenges and responsibly expanding AI's potential.
The effectiveness of nanotechnology toothbrush bristles in maintaining oral hygiene of children aged 9–12 years: a quasi-experimental Parihala, Juan Dion; Fadilah, Rina Putri Noer; Endrowahyudi, Hartanto; Supriatna, Andi; Khairunnisa, Zahra
Padjadjaran Journal of Dentistry Vol 38, No 1 (2026): March 2026
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol38no1.68522

Abstract

Introduction: Dental caries remains a common oral health problem among school-aged children and is associated with oral hygiene practices and plaque control. In Indonesia, its high prevalence highlights the need for effective preventive strategies. Conventional toothbrushes rely mainly on mechanical plaque removal, which may be limited in children due to variations in brushing technique. Recent developments have introduced nanotechnology in toothbrush bristles, where nanosilver is incorporated into the bristle material and has been reported to exhibit antibacterial and anti-biofilm properties that may support plaque control during brushing. However, evidence of its effectiveness in children remains limited. This study aimed to analyze the effectiveness of nanotechnology toothbrush bristles in maintaining oral hygiene among children aged 9–12 years. Methods: This study employed a quasi-experimental design with a control group pre-test and post-test approach. A total of 62 children aged 9–12 years were included: the experimental group using nanosilver-bristled toothbrushes (n=31) and the control group using conventional toothbrushes (n=31). All participants received the same toothbrushing instruction at baseline. Oral hygiene was assessed using the Patient Hygiene Performance (PHP) index on selected index teeth representing anterior and posterior sextants, measured at baseline and after a 21-day intervention. As the data were not normally distributed, the Wilcoxon signed-rank test and Mann–Whitney U test were used. Results: Baseline PHP scores were comparable between groups (p>0.05). After the intervention, the mean PHP score in the experimental group decreased from 3.87 ± 1.074 to 1.51 ± 1.040 (61.0% reduction; p<0.05). In the control group, the mean PHP score decreased from 3.38 ± 0.734 to 2.88 ± 0.799 (14.8% reduction; p<0.05). The reduction in PHP scores was significantly greater in the experimental group (p<0.05). Conclusion: Toothbrushes with nanosilver bristles were more effective than conventional toothbrushes in improving oral hygiene among children aged 9–12 years.
Co-Authors Amelia, Shely Andi Supriatna, Andi Awalina, Syifa Berlian, Sindi Endrowahyudi, Hartanto Fanani, Ikhsan Hasna Kamila, Nayla Hendrata, Mahesa Irvanti, Risyanka Nafishafara Karlimah Karlimah Kosasi, Ferdiansyah Ishaq N, Nurhasanah Parihala, Juan Dion Pidi Mohamad Setiadi Puspita, Sinta Rina Putri Noer Fadilah, Rina Putri Noer Yani, Dwi Fitri