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Pembuatan seal tabung gas karet alam dengan filler pasir kuarsa sebagai pengganti karbon hitam Suharman, Suharman; Harun, M.
Majalah Kulit, Karet, dan Plastik Vol 33, No 1 (2017): Majalah Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (205.955 KB) | DOI: 10.20543/mkkp.v33i1.2123

Abstract

This research aimed to make natural rubber-based gas cylinder seals with quartz sand as the filler to replace carbon black. The experiments consisted of the use of 10 phr, 20 phr, 30 phr, 40 phr, and 50 phr of quartz sand. The gas cylinder seals produced underwent a test according to the Indonesian National Standard (SNI) 7655:2010. The test generated the following results: the value of hardness ranged from 51±6 to 60±5 Shore A, the value of tensile strength ranged from 67 to 72 kg/cm2, the value of elongation at break ranged from 414 to 457%, the value of the compression set ranged from 25 to 61%, after aging, and ozone resistance with no cracks. Natural rubber-based gas cylinder seals with quartz sand as the filler to replace carbon black met the requirements specified by SNI 7655:2010 in terms of the criteria of hardness, elongation at break, after aging and ozone resistance.Keywords: quartz sand, carbon black, gas cylinder seal. 
KAJIAN ORGANOLEPTIK MIE SUBTITUSI UBI JALAR ORANGE (Ipomea batatas L) Suharman, Suharman
Jurnal Sains dan Teknologi Pangan Vol 1, No 1 (2016): JURNAL SAINS DAN TEKNOLOGI PANGAN
Publisher : JURUSAN ILMU DAN TEKNOLOGI PANGAN, UNIVERSITAS HALU OLEO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (143.944 KB) | DOI: 10.33772/jstp.v1i1.1034

Abstract

The raw materials used in the manufacture of dry noodles are wheat flour high gluten. Excessive consumption of gluten will cause negative effects such as bloating, indigestion until symptoms such as severe irritable bowel syndrome. So the need for an alternative to a reduction in the consumption of wheat flour in making noodles with local food also take advantage of the Orange sweet potato. Organoleptic assessment using Random Design Complete with a combination of the proportions of flour and sweet potato Orange (70:30), (60:40), (50:50), (40:60), 100% wheat flour. The results showed that organoleptic judgment against the composition of wheat flour and sweet potato Orange in the manufacture of products the preferred noodles panelists found on treatment (composition of 50% wheat flour and sweet potato Orange 50%) with a score of 3.78% color (like), texture 4.02% (love), the scent of 3.40% (somewhat like) and taste 3.63% (like). It can be concluded the product substitution Orange sweet potato noodles composition most preferred panelists are present in the composition of 50% wheat flour and sweet potato Orange 50%. Keywords: Orange sweet potato, noodles, organoleptic.
Analisis Faktor Yang Mempengaruhi Keputusan Pembelian Konsumen Melalui Aplikasi Online Start-Up Di Kota Medan suharman, suharman
JURNAL RISET BISNIS DAN MANAJEMEN Vol 7, No 3 (2019): JRBM vol 7 no 3 2019
Publisher : Universitas Sam Ratulangi

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Abstract

This study aims to determine the factors that can influence consumer purchasing decisions in the Start-Up E-commerce application. The development of information technology continues to increase rapidly, including the e-commerce industry with many emerging start-up applications in Indonesia. The results of this study are the formation of five new factors namely Practical Factors, Comfort Factors, Buyer Characteristic Factors of Perception of Risk, and Product Availability Factors as needed. These factors can be a consideration for consumers in deciding on product purchases through the online Start-up applicationKeywords: Purchase Decision, Online Application, Start-up
Pengaruh Penambahan Ekstrak Bunga Telang (Clitoria ternatea) terhadap Pertumbuhan Bakteri Asam Laktat pada Pembuatan Yogurt Telang Nadia, Lana Santika; Sutakwa, Adi; Suharman, Suharman
Journal of Food and Culinary Vol 3, No 1 (2020)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jfc.v3i1.3123

Abstract

Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh penambahan ekstrak bunga telang dan penambahan susu skim pada pertumbuhan bakteri asam laktat. Rancangan perconaan yang digunakan adalah Rancangan Acak Lengkap dengan perlakuan tanpa dan penambahan ekstrak bunga telang (1% v/v). Pembuatan yogurt dan yogurt telang menggunakan susu skim (SS), susu pasteurisasi (SP), susu UHT(SU), susu pasteurisasi dengan penambahan 5% (b/v) bubuk skim (SPS), dan susu UHT dengan penambahan 5% (b/v) bubuk skim (SUS). Hasil analisa total BAL menunjukkan tidak berbeda nyata dan semua variabel tersebut sesuai dengan Standar SNI 2981:2009. Kesimpulannya, Penambahan ekstak bunga telang tidak menghambat pertumbuhan bakteri asam laktat namun juga tidak meningkatkan pertumbuhan BAL. Namun, asam laktat meningkat dengan penambahan ekstrak bunga telang. Dengan menambahkan susu skim dapat pula meningkatkan asam laktat pada yogurt.
Analisis Kadar Arsen (As) pada Sayur Kubis Hijau (Brassica oleracea L.) Pasca Erupsi Gunung Sinabung Cahyady, Boby; Taufik, Muhammad; Suharman, Suharman
ALCHEMY Vol 9, No 1 (2021): ALCHEMY: Journal of Chemistry
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/al.v9i1.11108

Abstract

ount Sinabung has had an impact on the lives of surrounding farmers after the eruption. One of the negative impacts is the exposure of plants and animals around them to dangerous chemical compounds, especially heavy metals. This work aimed to analyze the levels of arsenic (As) in green cabbage (Brassica oleracea L.) which was exposed after two months of the eruption. The sampling method was done using a simple random sampling technique at five points. The digestion process was carried out using hydrochloric acid and nitric acid. Arsenic analysis was performed using the atomic absorption spectroscopy (AAS) at 193.7 nm with vapor hydride generation accessories. Concentration of arsenic exposed to green cabbage at five sampling points was 0.4102, 0.4936, 0.4501, 0.6425, and 0.6534 mg/Kg. The results obtained were lower than the maximum limit of arsenic contamination in vegetables, namely 1.0 mg/Kg based on SNI No. 7387:2009.Keywords: arsenic, Brassica oleracea L, AAS, SNI, Mount SinabungGunung Sinabung memiliki pengaruh kepada kehidupan petani di sekitarnya pasca erupsi. Salah satu dampak negatifnya adalah terpaparnya tumbuhan dan hewan di sekitar terhadap senyawa kimia yang berbahaya, khususnya logam berat. Penelitian ini bertujuan untuk menganalisis kadar arsen (As) yang terdapat pada sayur kubis hijau (Brassica oleracea L.) yang terpapar setelah dua bulan erupsi. Pengambilan sampel dilakukan dengan menggunakan teknik simple random sampling di lima titik. Proses destruksi dilakukan dengan menggunakan asam klorida dan asam nitrat. Analisis arsen dilakukan dengan menggunakan atomic absorption spectroscopy (AAS) pada panjang gelombang 193,7 nm yang dilengkapi vapour hydride generation accessories. Kadar arsen yang terpapar pada sayur kubis hijau pada lima titik pengambilan sampel berturut turut sebesar 0,4102; 0,4936; 0,4501; 0,6425, dan 0,6534 mg/Kg. Kadar arsen yang diperoleh lebih rendah dari batas maksimum cemaran arsen dalam sayuran yakni 1,0 mg/Kg berdasarkan SNI No. 7387:2009.Kata kunci: arsen, Brassica oleracea L., AAS, SNI, Gunung Sinabung
Empowerment of Enrekang Coffee Farmers: Innovation of Coffee Skin Waste Into an Alternative Fermentation Feed Through Counseling Approach Sudirman, M Yunus; Kining, Ekajayanti; Ardat, Muh Achyar; Suharman, Suharman; Rusdin, Rista Astari; Astin, Nur
eScience Humanity Journal Vol 4 No 2 (2024): eScience Humanity Journal Volume 4 Number 2 May 2024
Publisher : Asosiasi Ide Bahasa Kepri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37296/esci.v4i2.163

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This research focuses on empowering coffee farmers in Enrekang Regency through transforming coffee husk waste into alternative fermented feed, using a counseling approach. Coffee husk waste is a common environmental problem in coffee producing areas, but has great potential to be processed into value-added products. A counseling approach is used to assist farmers in understanding the fermentation process, overcoming challenges, and improving their technical skills. The methods applied include direct training, ongoing assistance, and evaluation of the application of fermentation technology. The research results show that the counseling approach significantly increases farmers' knowledge and skills in processing coffee husk waste into fermented feed. The fermented feed produced is proven to have good nutritional quality and can be used as an economical and environmentally friendly alternative feed for livestock. Farmers involved in this program report increased income and reduced environmental problems caused by coffee husk waste. In conclusion, the counseling approach in empowering coffee farmers is not only effective in overcoming the problem of agricultural waste, but also contributes to improving farmer welfare through technological innovation. This research recommends expanding similar programs to other coffee producing regions to improve agricultural sustainability and farmer welfare in general.
SUPERVISI PENDIDIKAN DALAM PENINGKATAN PROFESIONALISME GURU SD DI KABUPATEN KUTAI KARTANEGARA Widyanto, Nonok; Suharman, Suharman; Sudadi, Sudadi
Pendas Mahakam : Jurnal Pendidikan dan Pembelajaran Sekolah Dasar Vol. 8 No. 2 (2023): December
Publisher : Teacher Training and Education Faculty, Widya Gama Mahakam Samarinda University

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Abstract

Artikel ini membahas peran penting supervisi pendidikan dalam meningkatkan profesionalisme guru Sekolah Dasar (SD) di Kabupaten Kutai Kartanegara. Supervisi pendidikan dianggap sebagai strategi efektif untuk mengidentifikasi kebutuhan pengembangan guru, memfasilitasi pertukaran pengetahuan, dan meningkatkan kualitas pengajaran. Penelitian ini fokus pada implementasi supervisi pendidikan sebagai upaya konkret untuk meningkatkan keterampilan, pengetahuan, dan motivasi guru SD. Metodologi penelitian dengan metode literatur review atau kepustakaan. Supervisi pendidikan berkontribusi pada peningkatan profesionalisme guru, terutama melalui umpan balik konstruktif, pelatihan tambahan, dan pembelajaran kolaboratif antar-guru. Tantangan yang mungkin dihadapi dalam penerapan supervisi pendidikan, termasuk keterbatasan sumber daya dan dukungan institusional. Oleh karena itu, rekomendasi disusun untuk meningkatkan efektivitas supervisi pendidikan, termasuk peningkatan alokasi sumber daya, pengembangan keterampilan supervisi bagi para pengawas pendidikan, dan penguatan kerjasama antara sekolah dan pihak terkait.
PENGEMBANGAN PENDIDIKAN KARAKTER MELALUI KEGIATAN EKSTRAKURIKULER PRAMUKA DI SEKOLAH Suharman, Suharman; Widyanto, Nonok; Eka Mahmud, M; Sudadi, Sudadi
Pendas Mahakam : Jurnal Pendidikan dan Pembelajaran Sekolah Dasar Vol. 8 No. 2 (2023): December
Publisher : Teacher Training and Education Faculty, Widya Gama Mahakam Samarinda University

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Abstract

Jenis penelitian yang dilakukan pada penelitian kali ini , merupakan jenis penelitian deskriftif kualitatif. Adapaun subyek dalam penelitaian ini adalah kepala sekolah, guru, dan pembina pramuka SDN 008 Loa Janan Ilir. Di dalam teknis penelitian dan pengumpulan data peneliti melakukan wawancara, observasi dan dokumentasi secara langsung. Dari hasil penelitian diperoleh data yang menunjukkan terjadinya pengembangan nilai-nilai pendidikan karakter pada peserta didik melalui kegiatan ekstrakurikuler pramuka. Pengembangan nilai karakter tersebut merupakan hasil dari pengamalan tri satya dan dasa dharma pramuka yang mencakup 18 nilai karakter bangsa, diantaranya meliputi karakter religius, menghargai prestasi, disiplin, jujur, toleransi, kerja keras, kreatif, mandiri, demokratif, rasa ingin tahu, semangat kebangsaan, cinta tanah air, bersahabat, cinta damai, peduli lingkungan, peduli sosial, dan bertanggung jawab. Pengembangan nilai-nilai karakter pendidikan melalui kegiatan ekstrakurikuler pramuka dengan cara menjadikan kegiatan tersebut sebagai kegiatan pengembangan diri wajib yang harus di ikuti oleh peserta didik. Data hasil penelitian ini diperoleh, dari kegiatan observasi pada saat kegiatan latihan pramuka di SDN 008 Loa Janan Ilir.
Membangun Karakter, Kreativitas dan Inovasi Mahasiswa melalui Expo Kewirausahaan Widiawati, Wilda; Rusdin, Rista Astari; Suharman, Suharman; Haliq, Muh Idham; Elihami, Elihami
MASPUL JOURNAL OF COMMUNITY EMPOWERMENT Vol 6 No 1 (2024): MASPUL JOURNAL OF COMMUNITY EMPOWERMENT
Publisher : LP2M Universitas Muhammadiyah Enrekang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33487/pengabdian.v6i1.7805

Abstract

The Entrepreneurship Expo is an activity designed to buid entrepreneurial character, increase student creativity and innovation. This activity provides students with the opportunity to showcase their products and creative ideas, build networks with entrepreneurs and get feedback and awards. The Entrepreneurhip Expo has several benefits, including building an entrepreneurial character who dares to take risks, never gives up and has a leadership spirit. Increase creativity and innovation by thinking creatively and being innovative in creating new products and ideas. Provides opportunities to present products and ideas and increase competitiveness. The method of implementing the Entrepreneurship Expo includes planning, implementation and evaluation. Planning includes forming a committee, determining themes and objectives as well as carrying out promotion and publications. Implementation includes exhibition stands, seminars and award giving. Evalution includes identifying weaknesses and strengths as well as formulating recommendations for improvement. The results and achievements show an increase in student interest in entrepreneurship, the growth of an entrepreneurial spirit, increased creativity and innovation, the creation of innovative products, the establishment of networks and increased competitiveness. The Entrepreneurship Expo can help students to become future leaders who are able to answers various global challenges.
MANFAAT ABON LELE UNTUK KEKURANGAN ENERGI KRONIK DAN STUNTING DI PEKON PODOSARI PRINGSEWU Puspariny, Cynthia; Anggraini, Anggi; Suharman, Suharman
Jurnal Perak Malahayati: Pengabdian Kepada Masyarakat Vol 5, No 2 (2023): Volume 5 Nomor 2 November 2023
Publisher : Program Studi Kebidanan Fakultas Ilmu Kesehatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jpm.v5i2.12673

Abstract

Pendahuluan: Masalah gizi merupakan masalah kesehatan masyarakat yang disebabkan oleh banyak faktor salah satu faktor tidak langsung yaitu ketersedian pangan rumah tangga. Beberapa kasus masalah gizi yang umum terjadi pada Kesehatan ibu dan anak yaitu masalah Kekurangan Energi Kronis (KEK) pada ibu hamil dan Balita Stunting. Riskesdas (2018) mengatakan bahwa proporsi ibu hamil dengan KEK di Indonesia secara menyeluruh Lampung sebesar 17%; Pringsewu sebesar 9,5% dan prevalensi stunting Kabupaten Pringsewu 20,19 %.Pelaksanaan kegiatan dibagi dalam beberapa tahapan yaitu perencanaan meliputi penetapan penyusunan jadwal kegiatan dilaksanakan oleh tim bersama dengan mitra, persiapan meliputi persiapan media, alat, bahan, tempat dan perizinan lalu tahap evaluasi. Pelatihan pengolahan abon ikan lele sebagai sumber protein menjadi abon yang disukai semua kalangan, terdapat peningkatan pengetahuan mengenai pengolahan abon lele serta terjadi peningkatan ukuran LILA ibu hamil. Diharapkan bidan desa dan kader dapat melanjutkan program inovasi Boluking agar dapat dijadikan program Pemberian Makanan Tambahan (PMT) dan dikembangkan menjadi produk yang memiliki nilai tambah tinggi, bernilai jual dan dapat meningkatkan ekonomi masyarakatKata Kunci: Abon Lele, Kekurangan energi kronis, Stunting