Browsing A - Teacher Training and Education by Author "Usman, Usman"
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Aktivitas antioxidan ekstrak metanol bunga Gmelina elliptica dari Kalimantan Timur
Usman, Usman; Sukemi, Sukemi; Yessi Maulida, Mardian; Herliani, Herliani; Eadvin Rosrinda, Awang Sari; Enos, Tangke Arung (BCSJ, 22-11-30)Gmelina elliptica digunakan penduduk di desa Talisayan, Kalimantan Timur, untuk mengobati otorrhea. Penelitian tentang aktifitas biologi dan antioksidan dari G. elliptica telah banyak dilakukan. Walaupun demikian ... -
Aktivitas antioxidan ekstrak metanol bunga Gmelina elliptica dari Kalimantan Timur
Usman, Usman; Sukemi, Basri; Yessi Maulida, Mardian; Herliani, Herliani; Eadvin Rosrinda, Awang Sari; Enos, Tangke Arung (Bivalen: Chemical Studies Journal, 2022-11-30)Gmelina elliptica digunakan penduduk di desa Talisayan, Kalimantan Timur, untuk mengobati otorrhea. Penelitian tentang aktifitas biologi dan antioksidan dari G. elliptica telah banyak dilakukan. Walaupun demikian ... -
ANALISIS KANDUNGAN LOGAM BERAT Pb DAN Cd DI MUARA SUNGAI MANGGAR BALIKPAPAN
Godfrida Any, Yusriana Dewi; S. A., Samson; Usman, Usman (Ecotrophic Jurnal Ilmu Lingkungan, 2018-11)Human activities around the estuary of the Manggar river in Balikpapan produce waste disposal and cause heavy metal contamination such as lead (Pb) and cadmium (Cd) in water bodies.The contaminant can endanger the life ... -
Antioxidant and Antidiabetic from Rhizophora mucronata Derived from Sambera Beach, East Kalimantan, Indonesia
Usman, Usman; Muh. Amir, Masruhim; Pintaka, Kusumaningtiyas; Erwin, Erwin; Dewi E., Bulan (Trop J Nat Prod Res, 2023-10)This study aims to evaluate the bioactive compounds, antioxidant, and antidiabetic properties of methanol, dichloromethane, and ethyl acetate extracts of Rhizophora mucronata mangrove leaves. The R. mucronata leaf ... -
Development of Learning Media for Chemistry Playing Cards Digital (Kami Kita) On Colloidal Material System
Damianus, Erik; Muhammad Amir, Masruhim; Aman Sentosa, Panggabean; Usman, Usman (Publisher: www.iosrjournals.org, 2022-07)Background: Thischemistrycardmediaprovidesopportunitiesforstudentstolearnactivelyanddevelopcreativeabilitiesinunderstan dingchemistryusinggames. The form of playing card games in chemistry learning is not muchdifferent ... -
Development of Learning Media for Chemistry Playing Cards Digital (Kami Kita) On Colloidal Material System
Masruhim, Amir; Panggabean, Aman Sentosa; Usman, Usman; Damianus, Erik (2022-08-03)This chemistry card media provides opportunities for students to learn actively and develop creative abilities in understanding chemistry using games. The form of playing card games in chemistry learning is not muchdifferent ... -
The Effectiveness of Using Learning Media 3D Pop Up Chemistry Assisted by Project Based Learning (PjBL) Learning Model Against Student Learning Outcomes on the Subject of Colloid Systems in SMA Negeri 12 Samarinda
Ijai, Ijai; Subagiyo, Lambang; Nurlaili, Nurlaili; Usman, Usman (International Organization of Scientific Research, 2021-04-01)Learning media is one important aspect that can affect the quality of student learning at school. Lack of use of media in the learning process can affect student motivation and learning outcomes in schools, the growth ... -
An Evaluation of the Antidiabetic and Antimicrobial Activity of an Ethanolic Extract from Rhizophora mucronata Leaf2023
Usman, Usman; Pintaka, Kusumaningtyas; Sukemi, Basri; Erwin, Erwin (JSK Farmasi Unmu;, 2023-08-30)The aim of this research was to determine the antidiabetic and antimicrobial properties of ethanolic extract of Rhizophora mucronata leaves, as well as the phytochemical elements contained in the leaf extract. Extracts ... -
PENGARUH MEDIA MONOPOLI TERHADAP HASIL BELAJAR SISWA SMA PADA POKOK BAHASAN LARUTAN ELEKTROLIT DAN NONELEKTROLIT
Ravinah, Wa Rizka; Usman, Usman; Kusumawardani, Ratna (Bachelor Degree Program of Chemical Education of Mulawarman University, Indonesia, 2019-09)Penelitian ini bertujuan untuk mengetahui pengaruh media monopoli dalam model pembelajaran kooperatif tipe teams games tournament (TGT) terhadap hasil belajar siswa SMA pada pokok bahasan larutan elektrolit dan nonelektrolit. ... -
Potensi Senyawa Metabolit Sekunder Dari Kulit Batang Melochia umbellata (Houtt) Stapf var. degrabrata paliasa) Sebagai Anti-Tuberkulosis
Usman, Usman (JSK Fakultas Farmasi Unmul, 2015-12-12)Melochia umbellata(Houtt) Stapf var. Degrabratamerupakan jenis tumbuhan yang banyak ditemukan di hutan tropis Indonesia. Di daerah Sulawesi selatan tumbuhan ini dikenal dengan nama paliasa dan sejak lama ... -
Production of Photosynthetic Pigments from Spirulina platensis
Pintaka, Kusumaningtyas; Sihol, Dwijaya Gultom,; Usman, Usman (2023-09-30)Photosynthetic pigments from microalgae have great potential biotechnological applications, as healthy food colorants and cosmetics. The production of photosynthetic pigments depends on many environmental conditions, ... -
Uji Aktivitas Antioksidan dan Antidiabetes Ekstrak Daun Mangrove (Rhizopora mucronata)
Usman, Usman; Dwi, Fildzania,; Imam, Fauzi (JSK Fakultas Farmasi Unmul, 2022-02-28)Penelitian ini bertujuan untuk mengetahui kandungan metabolit sekunder dan antioksidan serta antidiabetes ekstrak diklorometana dan etil asetat daun mangrove (Rhizopora mucronata). Sampel tanaman diambil ... -
UJI FITOKIMIA DAN AKTIVITAS ANTIOKSIDAN EKSTRAK METANOL JARINGAN BUAH TANAMAN BINTARO (Cerbera manghas)
Meysi, Yulianti; Usman, Usman (Kimia FMIPA Unmul 2022, 2022-11-30)Tanaman bintaro (Cerbera manghas) merupakan tanaman yang mengandung racun, terutama pada bagian buahnya yang mengandung senyawa racun cerberin. Namun, meskipun mengandung racun buah tanaman bintaro juga berpotensi ... -
Uji Fitokimia dan Toksisitas Terhadap Artemia salina Dari Ekstrak Metanol Jaringan Daun Mangrove Rhizophora mucronata
Ma’rifatul, Jannah; Usman, Usman (Prosiding SNK 2022 Kimia FMIPA Unmul, 2022-11-30)Tanaman mangrove memiliki kemampuan untuk menghasilkan senyawa bioaktif yang berpotensi untuk dikembangkan menjadi tanaman obat. Mangrove Rhizopora mucronata adalah salah satu spesises mangrove yang mempunyai senyawa ...