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All Journal PROSIDING SEMINAR NASIONAL Jurnal Ekonomi Ekonomi Bisnis JURNAL TEKNOLOGI LINGKUNGAN Kinerja Media Ekonomi dan Manajemen Riset Manajemen dan Akuntansi Jurnas Nasional Teknologi dan Sistem Informasi Mutiara Medika: Jurnal Kedokteran dan Kesehatan Jurnal Penelitian Ekosistem Dipterokarpa Graduasi: Jurnal Bisnis & Ekonomi BERITA BIOLOGI JURNAL BIOLOGI INDONESIA E-Dimas: Jurnal Pengabdian kepada Masyarakat Science and Technology Indonesia Jurnal Akuntansi dan Pajak JOIV : International Journal on Informatics Visualization Jurnal Manajemen Indonesia Journal Of Vocational Health Studies Resona : Jurnal Ilmiah Pengabdian Masyarakat Al-Kimia Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control SAR (Soedirman Accounting Review): Journal of Accounting and Business Jurnal Ilmiah Wahana Akuntansi Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Pengabdian Masyarakat AbdiMas JURNAL PENDIDIKAN TAMBUSAI Hearty : Jurnal Kesehatan Masyarakat Amerta Nutrition Jurnal Kelautan Nasional EQIEN - JURNAL EKONOMI DAN BISNIS Jurnal Kreativitas PKM Manuju : Malahayati Nursing Journal OIKOS: Jurnal Kajian Pendidikan Ekonomi dan Ilmu Ekonomi Journal Health & Science : Gorontalo Journal Health and Science Community Jurnal Kesehatan JIA (Jurnal Ilmiah Akuntansi) TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Jurnal Ilmu Manajemen dan Akuntansi Terapan Jurnal Pengabdian Dharma Laksana Jurnal Manajemen dan Administrasi Rumah Sakit Indonesia (MARSI) Jurnal Pelayanan dan Pengabdian Masyarakat (Pamas) Jurnal Kesehatan Ilmiah Indonesia / Indonesian Health Scientific Journal International Journal of Economics, Business and Accounting Research (IJEBAR) Borneo Journal of English Language Education JAZ: Jurnal Akuntansi Unihaz Jurnal Ilmiah Edunomika (JIE) Jurnal Riset Bisnis dan Manajemen Enrichment : Journal of Management Jurnal Ilmiah Kesehatan Masyarakat : Media Komunikasi Komunitas Kesehatan Masyarakat SELL (Scope of English Language Teaching, Linguistics, and Literature) Journal Community Development Journal: Jurnal Pengabdian Masyarakat Journal of Nursing and Public Health (JNPH) BRIGHT Jurnal Pengabdian Masyarakat Asia International Journal Of Science, Technology & Management (IJSTM) Journal SAGO Gizi dan Kesehatan Jurnal Insan Farmasi Indonesia Jurnal Kesmas Jambi Charity : Jurnal Pengabdian Masyarakat Jurnal Penelitian Ekosistem Dipterokarpa Jurnal Ilmiah Wahana Pendidikan Health Publica : Jurnal Kesehatan Masyarakat Nusantara Hasana Journal JEBDEKER: Jurnal Ekonomi, Manajemen, Akuntansi, Bisnis Digital, Ekonomi Kreatif, Entrepreneur EduLine: Journal of Education and Learning Innovation Akuntansi dan Teknologi Informasi JANAKA : JURNAL PENGABDIAN MASYARAKAT KEWIRAUSAHAAN INDONESIA KESANS : International Journal of Health and Science Action Research Literate (ARL) Mejuajua Jurnal Bisnis Mahasiswa Media Publikasi Promosi Kesehatan Indonesia (MPPKI) Indonesian Community Journal Empowerment: Jurnal Pengabdian Masyarakat Transformatif: Jurnal Pengabdian Masyarakat Jurnal Ilmiah Kesehatan Masyarakat Jurnal Ilmu Sosial dan Humaniora International Journal of Health and Pharmaceutical (IJHP) Journal of Accounting and Finance Management (JAFM) Jurnal Pengabdian Masyarakat Indonesia (JPMI) Jurnal Riset Rumpun Ilmu Kesehatan (JURRIKES) Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi) Jurnal Pemberdayaan Sosial dan Teknologi Masyarakat eProceedings of Applied Science PIJAR: Jurnal Pendidikan dan Pengajaran Termometer: Jurnal Ilmiah Ilmu Kesehatan Dan Kedokteran Ar-Raihanah: Jurnal Pendidikan Islam Anak Usia Dini Jurnal Pengabdian Pada Masyarakat ORGANIZE: Journal of Economics, Management and Finance Jurnal Kedokteran Hewan Diagnosa: Jurnal Ilmu Kesehatan dan Keperawatan Indonesian Journal of Pharmacy and Natural Product Usada Nusantara: Jurnal Kesehatan Tradisional Jurnal Ilmu Kesehatan dan Gizi Gudang Jurnal Multidisiplin Ilmu Physical Therapy Journal of Indonesia Jurnal Mahasiswa Ilmu Kesehatan Amal Ilmiah: Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Multidisiplin Indonesia Triwikrama: Jurnal Ilmu Sosial Jurnal Anestesi: Jurnal Ilmu Kesehatan dan Kedokteran Jurnal INFOTEL Blantika : Multidisciplinary Journal Belalek Jurnal Ilmiah Farmasi Simplisia Medic Nutricia : Jurnal Ilmu Kesehatan IJEB GEMBIRA (Pengabdian Kepada Masyarakat) Jurnal Pengabdian Masyarakat dan Riset Pendidikan Al-Kharaj: Jurnal Ekonomi, Keuangan & Bisnis Syariah El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam DIGIBE: Digital Business and Entrepreneurship Journal Journal of Community Services: Sustainability and Empowerment SELL (Scope of English Language Teaching, Linguistics, and Literature) Journal AL GHAZALI: Jurnal Pendidikan dan Pemikiran Islam Seroja Husada: Jurnal Kesehatan Masyarakat AL GHAZALI: Jurnal Pendidikan dan Pemikiran Islam Jurnal ARSI : Administrasi Rumah Sakit Indonesia Jurnal Inspirasi Ilmu Manajemen Global Leadership Organizational Research in Management Journal of Ekonomics, Finance, and Management Studies Jurnal Sains & Kesehatan Darussalam Jurnal Ekonomi dan Bisnis International Journal of Management, Economic and Accounting JURNAL SOSIAL TERAPAN (JSTR) Jurnal Info Kesehatan Jurnal Akuntansi Gudang Jurnal Ilmu Kesehatan
Rini Handayani
Telkom University
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THE ANALYSIS OF THE RISK FACTORS OF UNSAFE BEHAVIOR AMONG CONSTRUCTION WORKERS IN TANGERANG Andrea, Dio Rafly; Handayani, Rini; Situngkir, Decy; Millah, Izzatu
Journal of Vocational Health Studies Vol. 6 No. 3 (2023): March 2023 | JOURNAL OF VOCATIONAL HEALTH STUDIES
Publisher : Faculty of Vocational Studies, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jvhs.V6.I3.2023.197-202

Abstract

Background: The Minister of Manpower stated that the construction sector contributed to the highest number of work accidents. The cause of construction-sector work-accidents as much as 40% came from unsafe behavior from workers. Unsafe behavior is described as the possibility of individuals not following safety standards, procedures, instructions, and criteria specific to the work that the organization applies to. According to a preliminary study, 6 out of 10 workers (60%) have unsafe behavior while working. Purpose: To find out the risk factors of unsafe behavior in construction workers at the Cartenz apartment construction project in Tower D, PT. Nusa Raya Cipta, Tangerang in 2021. Method: A cross-sectional design was used in this present study. The population and sample included 42 workers that were used as total sampling technique. The primary data were collected by questionnaire, whereas the analysis was done with the Chi-square test in bivariate analysis. Result: The analysis showed that 40.5% workers had unsafe behavior, 45.2% had poor knowledge, 31% showed bad attitudes, 52.4% had new work period, and 42.9% had poor supervision. Bivariate analysis indicated that knowledge (p-value 0.016), attitude (p-value 0.028), work period (p-value 0.004), and supervision (p-value 0.041) are associated with unsafe behavior. Conclusion: The risk factors of unsafe behavior in construction workers in Tangerang include knowledge, work period, attitudes, and supervision.
FACTORS RELATED TO EYE FATIGUE IN CUSTOMER SERVICE EMPLOYEES 2022 Putri Gunawan, Arni; Cempaka Putri, Eka; Millah, Izzatu; Handayani, Rini
Journal of Vocational Health Studies Vol. 7 No. 1 (2023): July 2023 | JOURNAL OF VOCATIONAL HEALTH STUDIES
Publisher : Faculty of Vocational Studies, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jvhs.V7.I1.2023.1-9

Abstract

Background: Eye fatigue is a symptom caused by excessive efforts of the visual system, which is in less than perfect condition to obtain visual acuity. This is influenced by gender, duration, and distance of viewing the monitor. Purpose: Analyze the factors and images related to eye fatigue in customer service employees at PT X in 2021. Method: Descriptive study with cross-sectional design with the total sampling method. The sample in this study was 50 people. The population in this study was 50. This research was conducted on December 27 – January 5, 2022. Data collection was obtained by collecting primary data and secondary data. Data were analyzed by univariate and bivariate using the Chi-square test. Result: That the highest proportion is found in employees who experience eye fatigue complaints as many as 44 people (88%), in employees aged ≤40 years as many as 42 people (84%), employees who have female sex as many as 32 people (64% ), employees who have a working period of >3 years as many as 45 people (90%), had computer use >8 hours a day as many as 46 people (92%), saw a monitor distance of 50 cm as many as 38 people (76%), and there was a relationship between gender (p-value = 0.001), duration of computer use (p-value = 0.004), monitor viewing distance (p-value = 0.002) with the incidence of eye fatigue in customer service employees at PT X in 2022. Conclusion: The results show that eye fatigue does not get worse by placing the computer in such a way that there is no light reflection, conducting periodic medical check-up, and educating employees to intersperse computer use time.
FAKTOR PEKERJA YANG BERHUBUNGAN DENGAN KELELAHAN KERJA PADA OPERATOR COLD DRAW PT X TAHUN 2024 Istiani, Dwi; Irfandi, Ahmad; Handayani, Rini; Heryana, Ade
Seroja Husada: Jurnal Kesehatan Masyarakat Vol. 1 No. 5 (2024): Seroja Husada: Jurnal Kesehatan Masyarakat
Publisher : Seroja Husada: Jurnal Kesehatan Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kelelahan mampu menurunkan daya tampung kerja dan ketahanan kerja yang ditandai oleh sensasi lelah, lambat dalam reaksi, kesulitan menentukan keputusan, dan motivasi yang menurun. Tingkat kelelahan yang tinggi menghalangi pekerja untuk bekerja, dan jika tetap dipaksa bekerja, kelelahan dapat meningkat dan mengganggu kelancaran pekerjaan serta berdampak negatif bagi kesehatan pekerja. Berdasarkan studi pendahuluan yang dilakukan pada operator Cold Draw PT X Tahun 2024 terdapat 75% operator mengalami kelelahan tingkat berat dan 25% operator mengalami kelelahan ringan. Tujuan penelitian ini adalah untuk mengetahui faktor pekerja yang berhubungan dengan kelelahan kerja. Penelitian ini memiliki sampel sebanyak 40 operator dengan teknik total sampling, menggunakan metode kuantitatif dengan desain cross sectional. Penelitian ini menggunakan metode pengumpulan data primer yang diperoleh melalui pengisian kuisioner Subjective Self Rating Test dari Industrial Fatigue Research Committee (IFRC). Berdasarkan hasil univariat kelelahan kerja pada operator yaitu proporsi tertinggi yaitu operator mengalami kelelahan kerja berat sebanyak 25 operator (62%), umur tidak berisiko yaitu 18-40 tahun sebanyak 34 operator (85%), kuantitas tidur tidak cukup sebanyak 29 operator (72%), kebiasaan olahraga ≥ 35 menit / hari (tidak berisiko) sebanyak 22 operator (55%), status gizi tidak normal sebanyak 27 operator (68%) dan lama kerja tidak memenuhi syarat sebanyak 30 operator (75%). Pada uji bivariat menggunakan uji chi square, uji statistik menunjukkan bahwa terdapat hubungan antara kuantitas tidur dengan kelelahan kerja (p-value 0,042) dan tidak terdapat hubungan dengan kelelahan kerja yaitu umur (p-value 1,000), kebiasaan olahraga (p-value 0,870), status gizi (p-value 1,000) dan lama kerja (p-value 0,715). Dari penelitian ini dapat disimpulkan bahwa terdapat hubungan antara kuantitas tidur dengan kelelahan kerja pada operator Cold Draw PT X Tahun 2024.
ENGLISH TEACHER’S PROBLEMS IN IMPLEMENTING THE 2013 CURRICULUM IN ONLINE LEARNING AT SMA MUHAMMADIYAH BOARDING SCHOOL TARAKAN Handayani, Rini; Ridwan, Ridwan
Borneo Journal of English Language Education Vol 3, No 2 (2021): December
Publisher : Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/bjele.v3i2.2368

Abstract

Abstract The present study aimed at describing the English teacher’s problems in implementingthe 2013 curriculum in online learning at SMA Muhammadiyah Boarding SchoolTarakan. A case study was conducted to an English teacher at SMA MuhammadiyahBoarding School Tarakan. Data were collected through observation, interview, anddocumentation. The concurrent flows of analysis (data reduction, data display, andconclusion drawing) were used to reveal the English teaching problems. The result ofanalysis disclosed the problems from three teaching dimensions. In the preparation,the teacher found a hard struggling to compile the instructional documents because ofthe limitation of time in making the documents and in obtaining the references foronline learning. In the teaching and learning process, the teacher did not fully meetthe target of learning materials listed in the lesson plans because he had to adapt thematerials to the online class atmosphere. Controlling the students’ activities was alsothe challenging part during online class because the teacher could not see the studentsdirectly. Although, the teacher had mastered on how to use online learning platforms,some students could not use those platforms appropriately. The other problems wereunstable internet connection and support from students’ parents. These led thestudents became passive and decrease their motivation. In the assessment process, theteacher felt burdened because the assessment components were too complex. Besidesthat, there was a lot of tolerances given by the teacher to students.
Penentuan Karakteristik Salinitas Menggunakan Conductivity Temperature Depth (CTD) Di Perairan Pulau Sumba Pasaribu, Roberto Patar; Djari, Anthon Anthonny; Rahman, Abdul; Handayani, Rini
Jurnal Kelautan Nasional Vol 19, No 2 (2024): Agustus
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkn.v19i2.13283

Abstract

Salinitas adalah tingkat keasinan atau kadar garam yang terlarut dalam air, yaitu jumlah gram garam yang terlarut untuk setiap liter larutan. Pengukuran salinitas secara berkala akan memberikan dampak yang positif terhadap suatu lingkungan karena salinitas adalah salah satu faktor penting dalam menilai kondisi suatu perairan. Pengukuran salinitas dapat menggunakan alat Conductivity Temperature Depth (CTD, alat ini digunakan juga untuk mengukur parameter air lainnya seperti suhu, tekanan, kedalaman dan densitas. Tujuan penelitian ini adalah untuk mengetahui karakteristik salinitas dan pola sebaran salinitas pada berbagai kedalaman di perairan Pulau Sumba, Nusa Tenggara Timur. Pengambilan data dilakukan dengan menggunakan alat Conductivity Temperature Depth (CTD yang dilaksanakan bersama dengan Pusat Riset Oseanografi, Badan Riset dan Inovasi Nasional (BRIN). Hasil pengolahan dan analisa data diperoleh di perairan Pulau Sumba salinitas tertinggi terdapat pada kedalaman 200m dengan nilai 34,57 psu dan nilai salinitas terendah terdapat pada kedalaman 5m dengan nilai 34,02 psu. Adapun salinitas rata-rata di perairan Pulau Sumba adalah salinitas maksimum adalah 34,54 psu dan salinitas minimum adalah 34,14 psu.
Efek Antidiabetes Infusa Daun Pepaya Jepang (Cnidoscolus aconitifolius Mill.) Pada Mencit (Mus musculus L.) Jantan dengan Metode Tes Toleransi Glukosa Nurmalia Zakaria; Amelia Sari; Fauziah Fauziah; Rini Handayani
Journal of Science and Health Darussalam Vol. 4 No. 1 (2024): Jurnal Sains dan Kesehatan Darussalam
Publisher : Akademi Analis Farmasi dan Makanan Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56690/jskd.v4i1.134

Abstract

Daun pepaya jepang (Cnidoscolus aconitifolius Mill.) dipercaya secara empiris dapat menurunkan kadar glukosa darah atau mengontrol kondisi hiperglikemik yang lebih ringan. Daun pepaya jepang memiliki aktivitas sebagai antihiperglikemia karena salah satu kandungan kimia yang terdapat pada daun pepaya jepang yaitu flavonoid dan saponin. Penelitian ini bertujuan untuk menentukan efek antidiabetes dari infusa daun pepaya jepang terhadap mencint jantan. Metode uji antidiabetes menggunakan metode Tes Toleransi Glukosa (TTG) terhadap tiga kelompok dosis perlakuan infus daun pepaya yaitu dosis 16,5 mg/20g BB; 33 mg/20g BB; dan 66 mg/20g BB, serta kelompok kontrol negatif dan kontrol positif. Hasil uji menunjukkan bahwa ketiga kelompok dosis infusa pepaya jepang memiliki efek antidiabetes dengan cara menurunkan kadar glukosa darah (KGD) mencit hingga menit ke-120 dengan persentase penurunan KGD secara berurutan yaitu 60,2%, 70,0% dan 71,8%. Nilai persentase penurunan KGD ketiga kelompok infusa daun pepaya jepang memberikan hasil yang berbeda secara signifikan dengan kontrol positif dan kontrol negatif yaitu 51,8% dan 24,2% (P<0,05). Efek antidiabetes dari ketiga infusa daun pepaya lebih tinggi dibandingkan dengan obat antidiabetes oral Metformin. Persentase penurunan KGD paling tinggi diberikan oleh infusa daun pepaya jepang dosis 66 mg/20 g BB dan tidak berbeda secara signifikan dengan infusa daun pepaya jepang dosis 33 mg/20g BB. Kata kunci : Antidiabetes, Tes Toleransi Glukosa (TTG), Infusa Daun Pepaya Jepang, Penurunan Kadar Gula Darah (KDG)
Studi Literatur : Rimpang Sebagai Tanaman Indonesia Dengan Efektivitas Antidiabetes Wahyudi; Pivit Rahayu; Rini Handayani; Syaira Alfauza; Windi Zahrani
Jurnal Kesehatan Ilmiah Aufa Royhan Vol 9 No 2 (2024): Vol. 9 No. 2 Desember 2024
Publisher : Universitas Aufa Royhan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51933/health.v9i2.1845

Abstract

Bahan baku obat tradisional adalah tanaman herbal yang tersebar di seluruh Indonesia. Ada 30.000 spesies tanaman di hutan tropis Indonesia. Rimpang adalah jenis rempah-rempah yang berbentuk batang dan tumbuh di bawah permukaan tanah. Rimpang dari berbagai jenis tanaman telah digunakan secara tradisional untuk mengobati berbagai penyakit, seperti diabetes, seperti jahe (zingiber officinale), kunyit (curcuma longa), dan temulawak (curcuma zanthorrhiza). Indonesia menempati urutan ke-7 di dunia dalam hal jumlah penderita diabetes mellitus (DM) dengan 8,5 juta orang. Studi literatur ini bertujuan untuk membuat ka Bahan baku obat tradisional adalah tanaman herbal yang tersebar di seluruh Indonesia. Ada 30.000 spesies tanaman di hutan tropis Indonesia. Rimpang adalah jenis rempah-rempah yang berbentuk batang dan tumbuh di bawah permukaan tanah. Rimpang dari berbagai jenis tanaman telah digunakan secara tradisional untuk mengobati berbagai penyakit, seperti diabetes, seperti jahe (zingiber officinale), kunyit (curcuma longa), dan temulawak (curcuma zanthorrhiza). Indonesia menempati urutan ke-7 di dunia dalam hal jumlah penderita diabetes mellitus (DM) dengan 8,5 juta orang. Studi literatur ini bertujuan untuk membuat kajian literatur efektivitas berbagai rimpang indonesia sebagai antidiabetes. Metode dalam studi literatur ini dengan cara mengumpulkan artikel penelitian yang berkaitan dengan rimpang indonesia sebagai antidiabetes yang telah dipublikasi pada tahun 2019-2024. Pengumpulan artikel dilakukan dengan cara mengakses google scholar dengan kata kunci yang relevan. Hasil penelitian terdahulu menunjukkan bahwa rimpang(rhizoma) seperti jahe (zingiber officinale), kunyit (curcuma longa), dan temulawak(curcuma zanthorrhiza) mempunyai efektivitas yang signifikan dalam pengobatan antidiabetes. Rimpang indonesia berpotensi untuk dikembangkan menjadi obat tradisional, dan obat antidiabetes. jian literatur efektivitas berbagai rimpang indonesia sebagai antidiabetes. Metode dalam studi literatur ini dengan cara mengumpulkan artikel penelitian yang berkaitan dengan rimpang indonesia sebagai antidiabetes yang telah dipublikasi pada tahun 2019-2024. Pengumpulan artikel dilakukan dengan cara mengakses google scholar dengan kata kunci yang relevan. Hasil penelitian terdahulu menunjukkan bahwa rimpang(rhizoma) seperti jahe (zingiber officinale), kunyit (curcuma longa), dan temulawak(curcuma zanthorrhiza) mempunyai efektivitas yang signifikan dalam pengobatan antidiabetes. Rimpang indonesia berpotensi untuk dikembangkan menjadi obat tradisional, dan obat antidiabetes.
Determinants Of Corporate Income Tax Payable With Operating Costs As Moderating Variable Handayani, Rini; Endah Purnamasari Edhy
Jurnal Ekonomi Vol. 29 No. 3 (2024): November 2024
Publisher : Fakultas Ekonom dan Bisnis, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/je.v29i3.2550

Abstract

The Covid-19 pandemic has had a negative impact around the world, including Indonesia, and has severely affected the health, economy, agriculture, and transportation sectors. Economic growth has declined since the second quarter of 2020, with a decline in corporate income and taxes received by the state. The decline in corporate income leads to a reduction in profits and corporate income taxes payable. This study aims to analyze the factors that affect corporate income tax in manufacturing companies before and after the pandemic. These factors include Profitability, Net Sales, Liquidity, and Leverage, as well as Operating Expenses as moderation variables. The study population includes all companies listed on the IDX, with a sample of manufacturing companies for the period 2019-2022. The data collection technique uses secondary data in the form of available financial statements. The analysis methods used are multiple linear regression and moderate regression analysis.
The Influence of Advertising and Brand Ambassadors on Cimory Yogurt Drink Purchase Decisions on Instagram Followers @Cimoryindonesia Cantika Agustianty Gunanto; Rini Handayani
ORGANIZE: Journal of Economics, Management and Finance Vol. 2 No. 4 (2023): Economic Transformation and Development
Publisher : Perkumpulan Dosen Fakultas Agama Islam Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58355/organize.v2i4.59

Abstract

This research was conducted on the use of the Instagram application. The purpose of this research is to find out how much influence advertising and brand ambassadors contribute to purchasing decisions, both partially and simultaneously, for followers on Instagram @cimoryindonesia. The research method used in this research is descriptive and associative methods. In this research, the unit of analysis is individuals, namely followers on Instagram @cimoryindonesia. The sample in this study was 100 respondents. Proportional stratified random sampling is the sampling technique used in this research. The analysis method uses multiple linear regression analysis, apart from that, validity and reliability testing of the research instruments is also carried out. Based on the research results, it shows that advertising and brand ambassadors have a partial or simultaneous positive influence on purchasing decisions on Instagram @cimoryindonesia. The influence of advertising on purchasing decisions is 20.3%, while the influence of brand ambassadors on purchasing decisions is 52.1%. The influence of advertising and brand ambassadors on purchasing decisions is 72.4%.
Physical Properties of Biodegradable Chitosan-Cassava Starch Based Bioplastic Film Mechanics Kusumawati, Rinta; Syamdidi; Abdullah, Akbar Hanif Dawam; Nissa, Rossy Choerun; Firdiana, Bonita; Handayani, Rini; Munifah, Ifah; Dewi, Fera Roswita; Basmal, Jamal; Wibowo, Singgih
Science and Technology Indonesia Vol. 10 No. 1 (2025): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.1.191-200

Abstract

Petroleum-derived plastics are widely used but pollute the environment significantly. The development of biodegradable plastics is urgently needed to be replaced. The mechanism for making bioplastic films from cassava starch-chitosan/glycerol uses a double-screw extruder process. The film took into account the multi-hydroxyl capacity of starch by combining glycerol (in a ratio of 3:1 w/w) and chitosan (at concentrations of 0.5, 1.0, and 1.5% (w/w). The impact of chitosan involvement on the characteristics of the bioplastic material was studied, including physical, thermal, mechanical, and biodegradability properties. The findings showed that using chitosan as a filler in cassava starch bioplastics resulted in bioplastic films with high compressive capacity and water resistance. The resulting biopolymer’s contact angle was increased by including C-O functional groups in the molecule, as evidenced at a wavelength of 1028 cm-1 of the FTIR spectra. The contact angle was increased from theta = 65.3059 ± 2.7936◦ to theta = 68.6047 ± 3.2391◦. An increase in tensile strength was also observed, indicating increased stiffness compared to chitosan-free bioplastics. The best bioplastic blend was the formulation of cassava starch and glycerol containing 0.5% chitosan. Bioplastic has physical properties of density 0.8625 ± 0.0277 g/mL; contact angle 68.6046 ± 3.2391◦; water uptake 11.0660 ± 0.3709%; tensile strength 2.0181 ± 0.0594 MPa; elongation 54.2243 ± 3.2623%; thermal 137.5◦C; moisture content 4.9464 ± 0.1172%; and the fastest biodegradation rate. The bioplastic synthesized in this study is readily biodegradable in the natural environment, making it highly sustainable and more environmentally friendly, and it can be a viable substitute to reduce the use of petroleum-based bioplastic.
Co-Authors Aan Abdul Azis Abdul Holik Abdul Rahman Adevindi Dwi Agustya Adila, Mahesa Cipta Aditya Yudanegara Ady Supriyadi Agus Hendra Al Rahmad Agus Maolana Hidayat Akbar Hanif Dawam Abdullah, Akbar Hanif Dawam Albanjari, Sabar Hati Alfia, Rival Alfika Safitri Alfridsyah Alfridsyah Alini Gilang Almira Amir Amalia, Rila Amanda, Verna Budi Amelia Ramadhani, Amelia Amelia Sari Amelia, Indah Anak Agung Gde Agung Anak Agung Gde Agung Anang Sularsa Andhi Sukma Andrea, Dio Rafly Angeliana K, Devi Apdila, Nadia Arif Farida Arlin Ferlina Mochamad Trenggana Arnita, Teti Arry Widodo Aryanti, Ega Kirana Aryanti Astadi Pangarso Astuti, Yoni Aulianshah, Vonna Aurora Angela AYU WANDIRA Azhar Yamin , Alfian Azhar, Aufa Azijah Tussolihah Siregar Bachruddin Saleh Luturlean Bagus Isnu Bala, Rima Parawati Berwi F Pamudi Berwi Fazri Pamudi Cahya, Oktania Cantika Agustianty Gunanto Cholisa Resmi Sari Cindy Zljihan Kartika Clara Elnisa Woro Hanadi Cut Alia Kemala Muda Dadan Nugraha Damayanti, Hazfrina Danan Aryadi Wicaksono Dara Nurhidayati Decy Situngkir Deddy Dwi Nurcahyono, Deddy Dwi Desi Yana Sari Desyawati Utami Devi Angeliana Kusumaningtiar Devie Ryana Suchendra Dewi, Fera Roswita Deybi Julianti Napitu Dhea Adinda Dina Masyithah Dini Trifani Djari, Anthon Anthonny Dwi Fitri Yani Dwi Nurmawaty Dwi Oktaviani, Nadia Edi Priyono Eff, Aprilita Rinayanti Eka Cempaka Putri Ekhsonov, Jasur Eko Setyanto Elfrida Ratnawati Elisa Putri Agustin Ely Wahyuni Endah Purnamasari Edhy Endang Sulastri Eni Prihati Enny Prayogo F Frengki fadillah, aprilia nur Fadlurrohmansyah Prianto Faizal Gifari Fajar, Rizal Fansuri Munawar Farhana, Najla Kamilia Fauzi Sirait Fauziah Fauziah Fenitra, Rakotoarisoa Maminirina Ferdiansyah, Muhamad Rifki Fikriyyah, Nabila Shafa Firdiana, Bonita Fithriyah Rahmawati Fragarian Meydika Frengki Frengki, Frengki Frengki, F Geminastiti Sakkir Getar Millennium Udara Gita Indah Hapsari Giva Andriana Mutiara Gunawan, Tedi Habiba Kamila Fatin Hairul Efendi Hakim, Fikril Hakim, Haris Hasanul Halimatussakdiah Halimatussakdiah Handayani Tri Wijayanti Handayani, Rani Nuri Hapsari, Ayuningtyas Y. Hari Prayogo Hariyanti, Widi Hartati Apriani hazizah, zalsa bella risky nur Helda Zerlyfera Hendra Dhermawan Sitanggang Henny Uswatun Hasanah, Henny Uswatun Herlina Herlina Herlina Herlina Heru Nugroho Hery Widijanto Heryana, Ade Hidup Marsudi, Hidup Hilwa Syahidah I Nyoman Agus Wijaya Ichsan Ichsan Ifah Munifah Ike Sari, Marlindia Imam Saguh Mardiono Indra Ora Emi, Yohanes Indrasastra, Syiffa Fitria Innes Resnasari Agustianty Ira Marti Ayu Irfan Diki Wahyudi Irfandi, Ahmad irsad, cucunendro Ismi Nurhasanah Istiani, Dwi IWAN SASKIAWAN Izzah, Aflahatul Izzatu Millah Jamal Basmal, Jamal Jejen Jaenudin Jeni Puspita Sari Jeni Windiyasari Joko Sulistyo Joko Tri Winarno, Joko Tri winarno Jolianis ME S.Pd Jovita, Gabriella Alodia Kambono, Herman Karisma Putri Lestari, Leady Karmilasanti Karmilasanti, Karmilasanti Kartikasari, Ririn Kasidin, Kasidin Kasman, Rosmini Kautsar, Alfi Keumala Muda, Cut Alia Keumala, Cut Alia Khaliza, Nur Khamla NonAlinsavath Khoirunnisa, Giri Arum Kristina Sisilia Kurniawan, Tio Rizki Laily Maftuhah Latifah Wulandari Lawalata, Omri Ebo Junior Lesmana, Mochamad Al Fachry Letelay, Alfons M. Lidia Rosaria Listyaningsih, Ririn Luh Ayu Krisdayanti Luh Putu Ratna Sundari Lutfiyah8, Evi M Munira Made Sri Wahyuni, Ni Mahadewi, Erlina Puspitaloka MAHARANI, PREYSITA PUAN Makarimovic, Awwab Malim Soleh Rambe Maretia, Stella Marlindia Ike Sari Maulana, Daman Maya Ardila Mega Fatimah Rosana Mega Retha Sefriany MELINDA, VENA Mira Asmirajanti Misbahul Fata Moch Fahru Rizal Mosleh Habibullah, Mosleh Muda, Cut Alia Keumala Mugi Wahidin Mugiyanto Mugiyanto Muhamad Rayhan Muhamad Saifudin Muhammad fauzan Muhammad Ikhsan Sani Muhammad Nasir Muhammad Nasir MUHAMMAD RAYHAN Muliyani E pulungan, Ifrah Mulyeni, Sri MUNIRA Munira Munira Munira Munira, Munira Munira, M Muniroh, Muniroh Mustikawati, Intan Silviana Mutia Rahmi Mutiara Sanni, Nada Nabila Irsya Khoirunnisa Namira Wadjir Sangadji Nastiti Rizky Shiyammurti Nasution, Nurhidayah Natasya Hayatusyifa Ngguna, Rifaidwianto Nila Anggraini, Feby Nilasari, Irma Nissa, Rossy Choerun Noni Zakiah Noni Zakiah Noni Zakiah Novendra, Bima Novita Sariayu Nunik Lestari Dewi Nunung Sri Haryati  Nur Afifah Nur Hafidiani Nur, Rifqi Raihan Nurhanifah Nurhidayah Nasution Nurmalia Zakaria Nurmawaty, Dwi Nurry ayuningtyas Kusumastuti Nursanti Nursinta, Noviyanti Nuryanti Nuryanti Nuryatul Hasanah Oktaviani, Desy Oktavianti Oktavianti Pasaribu, Roberto Patar Patrick Adolf Telnoni Periyadi, Periyadi Permana, Agus Riki Pivit Rahayu Prajna Deshanta Ibnugraha Prakoso, Jatayu Hadi Pramitha Aulia Pramuko Aji Prastiwi, Lina Pratama, Muhammad Syaihan Wahyu Prayogo, Enny Prihantono Prihantono, Prihantono Purwaningdyah, Sri Wilujeung Sunu Puspasari, Annisa Putri Gunawan, Arni Putri Handayani Putri Handayani PUTRI HANDAYANI Putri Salsabila, Fanny Aulia Putri, Zahrifa Adinda R Rasidah Rahma, Fani Dwi Rahmatan Lil Alamin Ramadhania, Ramadhania Rasidah Rasidah Rasidah Rasidah, Rasidah Rasidah, R Ratu Thaharah, Yelda Rayan Rayan, Rayan Regina Windyastuti Renti Mahkota Retno Setyorini Rhomadani Putriani Devitasari Ria Setia Sari Ridwan, Ridwan Rinta Kusumawati, Rinta Rita Dwi Rahayu Ritonga, Nurhayati Rizza Indah Mega Mandasari Robbi Hendriyanto Rohimah, Annida Roni Riandi Sabilla, Rifqi Zulfa Sagala, Novita Ambarwati Sakadara, Raihan Sampurna, Ahmad Sangadji, Namira W Sangadji, Namira Wadjir Saputro, Aris Dwi Selamet Septi Ariyanti, Yeni Setia Juli Irzal Ismail Setiawan, Sherly Wulandari Setyanto, Eko Setyawan, Didik Shalahuddin, Shalahuddin Shorayasari, Susi Sianturi, Kristiani Simanjuntak, Afni Hermenia Wati Simbolon, Masitoh Br. Simon Siregar Singgih Wibowo, Singgih Sinta Setiana Siregar, Pahri Siswandi Riki Rizaldi Siti Almaidah Siti Mahdiah Siti Robeatul Adawiyah Sjaaf , Amal Chalik Sobirov, Bobur Sri Mulyeni Sri Widaningsih Sri Widaningsih, Sri Sri Wiludjeng SP, Sri Stella Maretia Sugiyanto, Aan Sukatno Sumayya, Siti Suprihati - Surifran, Vicky Putra Surya Atmaja, Dwi Surya Badrudin Alamsyah Susi Aria Mensi Susi Shorayasari Sutianingsih Sutianingsih, Sutianingsih Syahputra Syahputra Syahputra, Adrian Syahrizal Syahrizal Syaira Alfauza Syamdidi Syarifah Aini Tan , Kwang En Tan Kwang En Taslim, Maureen Montella Taufik Rendi Anggara Teguh Imansyah, Teguh Temmy Julianul Ichsan Titi Sabariyah Tolego, James Arnold Utama, Nur Cahya Utami, Nita Aprilia Valencia, Natasha Verani Carolina Veronika, Erna Veza Azteria Vinny Stephanie Hidayat Vionalita, Gisely Vonna Aulianshah Wahyudi Wahyudi Wardani Muhamad Wekadigunawan, Cri Sajjana Prajna Wijaya, I Nyoman Agus Wijayanto, Satriya Wikan Budi Utami Wilza, Nadia Novemi Windi Zahrani Yahya, Fajar Nur Budy Yogi, Muhamad Yosi Eka Putri Yuanita Ayu Marwati Yudha, Dhitania Ayu Kurnianingtyas Yudhanegara, Aditya Yulhendri Yulhendri Yuli Irawati Yulia Nur Hasanah Yuni Nindia Yusuf, Ali Sajidin Yusvita, Fierdania Zelfino, Zelfino Zr, Surono