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All Journal Ecotrophic, Journal of Environmental Science Jurnal Informatika dan Teknik Elektro Terapan International conference on Information Technology and Business (ICITB) PROSIDING SEMINAR KIMIA Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Keperawatan 'Aisyiyah MUARA PENDIDIKAN : Jurnal Ilmiah Ilmu Pendidikan & Sosial Humaniora
USMAN -
Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Other

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DEVELOPMENT OF INTEREST IN YOUTH ENTREPRENEURSHIP IN UTILIZING ORGANIC WASTE INTO SELLING PRODUCT IN THE BORDER AREA Kristianto, Aloysius Hari; -, Usman
Prosiding International conference on Information Technology and Business (ICITB) 2018: INTERNATIONAL CONFERENCE ON INFORMATION TECHNOLOGY AND BUSINESS (ICITB) 4
Publisher : Prosiding International conference on Information Technology and Business (ICITB)

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Abstract

The purpose of this research is to find out how to foster entrepreneurial spirit of young people who are involved in waste management. This is deemed necessary because Bengkayang which is still lagging behind are still lacking in the number of people in terms of entrepreneurship and are not familiar with the processing of waste that can be worth selling. The title of this research is Development of Interest In Youth Entrepreneurship In Utilizing Organic Waste Into Selling Product In The Border Area. The productive goods to be produced are compost (liquid and solid). The problem faced is to foster interest in entrepreneurship for Youth in utilizing organic waste into useful selling products and increasing income. Through this research will be carried out the processing of organic waste into compost as a valuable product and see how to foster student interest in creating a sustainable development-based business by managing waste creatively. This type of research is qualitative research with the method used is descriptive method. This method was chosen to be able to objectively describe the management and processing of household-scale organic waste into productive goods that are of selling value. Data collection techniques used were participatory observation techniques and in-depth interview techniques.Keywords: entrepreneurial interest, organic waste, compost fertilizer, products, selling value.
DEVELOPING THE SPIRIT OF STUDENTS 'ENTREPRENEURS IN THE BORDER AREA IN UTILIZING OIL WASTE FOR BIODIESEL FUELS DISTRICT BENGKAYANG-KALBAR -, Usman; Kristianto, Aloysius Hari
Prosiding International conference on Information Technology and Business (ICITB) 2018: INTERNATIONAL CONFERENCE ON INFORMATION TECHNOLOGY AND BUSINESS (ICITB) 4
Publisher : Prosiding International conference on Information Technology and Business (ICITB)

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Abstract

Left behind Territory requires a high entrepreneurial spirit of its inhabitants. This is understood because in the area the builder is still left behind so that the field of work is very limited. To that end, research on the entrepreneurial spirit among young people who become a local development expectations important. Other than that thing was, it needed research into the field of entrepreneurship that is appropriate considering the limited facilities and resources available. Cooking oil is a processing tool foodstuffs commonly in use by the mother-housewife in general. Usually cooking oils used as ingredients in the household needs for the management of food ingredients. As for cooking oil (Cooking oil waste) or waste cooking oil is cooking oil that is used repeatedly restarted. Used cooking oil repetitive very harmful to human health; because its repeated use with high temperatures will result in free fat content. Effect of free fat is the emergence of various diseases such as liver cancer and others. Given the effects of negative, cooking oil can not be consumed again. waste cooking oil turned out to be an alternative fuel, substitute diesel.Solar diesel fuel is one of the more time will step because the raw material comes from fossils that notes bene including resources that can not be renewed.Therefore, processing cooking oil as a substitute for fuel, this is an exciting and necessary thing to experience. In terms of the benefits of jelantah oil is very good to create new business opportunities that is as a raw material biosdiesel environmentally friendly and with the concept of sustainable development (sustainebel development) in addition to the cooking oil processing is also seen to be one effort to deepen the entrepreneurship spirit of students STIM Shanti Bhuana.In relevance with the border area which at the same time left behind.Jelantah cooking oil is also expected to create new jobs and increase the income of the community. Not only that waste cooking oil cooking oil into fuel is expected to be a systematic and structured solution to the problem low people's opinions. At the same time providing an understanding for the local community about the adverse health effects of using repeated cooking  oil.Keywords: Entrepreneurship, Waste of cooking oil, Biodiesel.
ANALISIS KANDUNGAN LOGAM BERAT Pb DAN Cd DI MUARA SUNGAI MANGGAR BALIKPAPAN Godfrida Any Yusriana Dewi; Steven A Samson; Usman Usman
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 12 No 2 (2018)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1105.128 KB) | DOI: 10.24843/EJES.2018.v12.i02.p02

Abstract

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 of aquatic organisms. It can also occurs heavy metal bioaccumulation in the body of the aquatic organisms. The results show that the heavy metal content of Pb and Cd in water, sediment and water biota indicated that the estuary of the Manggar River was contaminated by heavy metals. The content of Pb and Cd in water is 0.276 mg/l and 0.020 mg/l, in sediments is 24.7 mg/kg and 4.52 mg/kg, and in the biota is 4.20 mg/kg and 0.80 mg/kg. This means that fish and shells taken from the waters around the estuary of the Manggar River are not safe for consumption because they can interfere the human health.
THE POTENTIAL OF SECONDARY METABOLITES COMPOUNDS OF METHANOL EXTRACT STEM BARK MELOCHIA UMBELLATE AS ANTI-BACTERIAL Usman -; Nunuk Hariani S; Hanapi Usman; Ahyar Ahmad
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

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Abstract

A Study antibacterial essay of the methanol extracts of steam bark M.umbellate (Houtt) Stapf var. degrabrata (Paliasa). The results of this study showed that the methanol extract from the bark of M. umbellate (Houtt) Stapf var. degrabrata group of compounds containing alkaloids, flavonoids, triterpenoids, phenolics and saponins. Methanol extract from the bark of M. umbellate can inhibit the growth of bacteria Bacillus subtilis, Staphylococcus aureus, gram-negative bacteria as well as representing Escherichia coli, Salmonella thypi, and Pseudomonas aeruginosa representing gram-positive bacteria. At a concentration of 400 ppm of methanol extracts of these plants showed effective barrier against bacteria tested, with a zone of inhibition, respectively as follows: 12.67 mm against bacteria B. subtilis, 12.97 mm against bacteria, S. aureus, 11.86 mm against bacteria E. coli and 12.12 mm against bacteria S. thypi. However, methanol extract from the bark of
SENYAWA TURUNAN OLEANAN DARI KULIT BATANG Melochia umbellata (Houtt) Stapf var. Degrabrata K DAN BIOAKTIVITASNYA Usman -; Nunuk Hariani Soekamto; Ahyar Ahmad
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
Publisher : PROSIDING SEMINAR KIMIA

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Abstract

Senyawa turunan oleanan 3-asetil-12-oleanen-28-oat diisolasi dari fraksi n-heksan kulit batang M.umbellata (Houtt) Stapf var. degrabrata K. Struktur molekul ditentukan melalui analisis data spektroskopi IR, NMR 1D dan NM R 2D ( 1 H, 13 C, DEPT, COSY, HMQC dan HMBC). Hasil uji bioakt ivitas menunjukkan bahwa senyawa tersebut bersifat toksik terhadap A. salina dengan nilai LC 50 361,93 μg/mL. Pada konsentrasi 1000 μg/ mL senyawa oleanan 3-asetil-12-o leanen-28-oat memberikan hambatan tertinggi terhadap bakteri B. subtilis dan jamu r C. albicans, dengan diameter zona hambat 15,8 mm dan 15,2 mm.
ANALISA PERBANDNGAN SUHU DAN ARUS AIR CONDITIONER MENGGUNAKAN REFRIGERANT R32 DENGAN R410A -, Usman; Cahyadi, Catra Indra; -, Paino
Jurnal Informatika dan Teknik Elektro Terapan Vol 13, No 1 (2025)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v13i1.5916

Abstract

Analisa hubungan dengan kecepatan dalam pendinginan yang berkaitan dengan Air Conditioner (AC) adalah sebuah alat yang berfungsi untuk mengkondisikan udara menjadi sejuk, Bisa dikatakan bahwa AC adalah alat yang berfungsi sebagai penyejuk udara pada suatu ruangan. Penggunaan AC dimaksud untuk memperoleh temperatur udara ruangan yang diinginkan seperti sejuk atau dingin dan nyaman bagi tubuh pada suatu ruangan. Kunci utama dari AC adalah refrigeran, yang umumnya lebih dikenal dengan freon R32 atau R410A pada sektor refrigerasi air evaporator. Pada penelitian ini metode yang digunakan adalah metode eksperimen dengan melakukan pengujian suhu ruangan, waktu dan arus yang dikonsumsi oleh AC split 1/2 Pk menggunakan refrigerant R32 dan R410A termasuk pengujian tekanan, dan untuk data yang diperoleh dari pengujian kemudian dibandingkan guna menghasilkan pengaruh terhadap efektifitas evaporator. Hasil pengujian penelitian dapat diperoleh kesimpulan bahwa angka efektivitas evaporator pada masing-masing jenis Freon pada AC yang menggunakan freon R32 memiliki efektifitas evaporator yang lebih baik dibandingkan AC yang menggunakan freon R410A. Persentase rata-rata kelembapan menggunakan freon R32 sebesar 64% lebih tinggi disbanding dengan freon R410 A yaitu 60%. Sedangkan konsumsi arus didapat hasil lebih kecil yang menggunakan freon R32.
ANALISA PERBANDNGAN SUHU DAN ARUS AIR CONDITIONER MENGGUNAKAN REFRIGERANT R32 DENGAN R410A -, Usman; Cahyadi, Catra Indra; -, Paino
Jurnal Informatika dan Teknik Elektro Terapan Vol. 13 No. 1 (2025)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v13i1.5916

Abstract

Analisa hubungan dengan kecepatan dalam pendinginan yang berkaitan dengan Air Conditioner (AC) adalah sebuah alat yang berfungsi untuk mengkondisikan udara menjadi sejuk, Bisa dikatakan bahwa AC adalah alat yang berfungsi sebagai penyejuk udara pada suatu ruangan. Penggunaan AC dimaksud untuk memperoleh temperatur udara ruangan yang diinginkan seperti sejuk atau dingin dan nyaman bagi tubuh pada suatu ruangan. Kunci utama dari AC adalah refrigeran, yang umumnya lebih dikenal dengan freon R32 atau R410A pada sektor refrigerasi air evaporator. Pada penelitian ini metode yang digunakan adalah metode eksperimen dengan melakukan pengujian suhu ruangan, waktu dan arus yang dikonsumsi oleh AC split 1/2 Pk menggunakan refrigerant R32 dan R410A termasuk pengujian tekanan, dan untuk data yang diperoleh dari pengujian kemudian dibandingkan guna menghasilkan pengaruh terhadap efektifitas evaporator. Hasil pengujian penelitian dapat diperoleh kesimpulan bahwa angka efektivitas evaporator pada masing-masing jenis Freon pada AC yang menggunakan freon R32 memiliki efektifitas evaporator yang lebih baik dibandingkan AC yang menggunakan freon R410A. Persentase rata-rata kelembapan menggunakan freon R32 sebesar 64% lebih tinggi disbanding dengan freon R410 A yaitu 60%. Sedangkan konsumsi arus didapat hasil lebih kecil yang menggunakan freon R32.
PENANGANAN KLIEN DENGAN GANGGUAN SPEKTRUM AUTISME DI AUTIS CENTER Syabariyah, Sitti; Ersaputra, Ricky; -, Usman
Jurnal Keperawatan 'Aisyiyah Vol. 6 No. 2 (2019): Jurnal Keperawatan 'Aisyiyah
Publisher : Universitas 'Aisyiyah Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.197 KB) | DOI: 10.33867/jka.v6i2.133

Abstract

Program yang digunakan suatu pusat pelayanan autisme dapat berbeda-beda antara satu dengan yang lainnya dalam mengatasi masalah autisme. Salah satu pusat pelayanan klien Gangguan Spektrum Autisme (GSA) di Pontianak adalah Autis Center Pontianak. Publikasi mengenai cara pusat pelayanan tersebut menangani klien GSA tidak banyak dan tidak mendalam. Tujuan penelitian ini adalah untuk mengetahui gambaran penanganan klien dengan GSA di Autis Center Pontianak. Penelitian ini menggunakan metode deskriptif dengan pendekatan kualitatif, teknik yang digunakan adalah wawancara mendalam dan dokumentasi. Informan akan ditanyai mengenai tiga poin besar seputar penanganan klien GSA, yaitu metode penanganan, kegiatan penunjang, dan peran/ keterlibatan orangtua. Hasilnya adalah Autis Center Pontianak menggunakan metode Applied Behavior Analysis (ABA) dalam menangani klien dengan gangguan spektrum autisme. Anak diberikan sebuah terapi sesuai dengan kebutuhannya, jenis-jenis terapi tersebut adalah terapi perilaku, terapi okupasi, terapi sensori integrasi, terapi wicara, dan terapi emosi. Selain terapi, Autis Center Pontianak mempunyai kegiatan-kegiatan yang dapat menunjang terapi mereka, beberapa diantaranya adalah Jumat ceria, kelas transisi, home visit, dan edukasi orangtua. Kesimpulannya adalah Autis Center Pontianak memiliki tiga kegiatan utama yang dilakukan untuk mengatasi klien GSA, yaitu terapi individual, kegiatan Jumat ceria, dan kelas transisi.
Peningkatan Kemampuan Pemecahan Masalah Siswa Pada Materi Barisan Dan Deret Melalui Pendekatan Teaching At The Right Level (TARL) Himmatul Aliyah; Usman Usman; Aniek Widajanti
MUARA PENDIDIKAN : Jurnal Ilmiah Ilmu Pendidikan & Sosial Humaniora Vol. 1 No. 4 (2025): MURADIK
Publisher : CV MUARA EDUKASI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64365/muradik.v1i4.108

Abstract

Penelitian ini bertujuan untuk meningkatkan kemampuan pemecahan masalah peserta didik pada materi barisan dan deret melalui pendekatan pembelajaran Teaching at The Right Level (TaRL). Metode yang digunakan adalah Penelitian Tindakan Kelas (PTK) dengan dua siklus, melibatkan 36 siswa kelas X-9 SMA Negeri 1 Samarinda. Siswa dikelompokkan berdasarkan tingkat kemampuan kognitif, disertai diferensiasi konten dan proses pembelajaran berbantuan LKPD. Hasil penelitian menunjukkan peningkatan kemampuan pemecahan masalah berdasarkan langkah Polya, dengan persentase peningkatan dari pra siklus ke siklus II sebagai berikut: memahami masalah naik 27,4%, merancang rencana 37,6%, melaksanakan rencana 52,5%, dan memeriksa kembali 62%. Selain itu, pada pra siklus terdapat 58,3% siswa dalam kategori sangat rendah dan rendah, namun setelah siklus II seluruh siswa telah mencapai kategori sedang ke atas. Temuan ini membuktikan bahwa pendekatan TaRL efektif dalam meningkatkan kemampuan pemecahan masalah matematika siswa secara signifikan.
Development of Biodiversity Encyclopedia Based on Flipbook to Improve Student Learning Outcomes in Senior High School 6 Samarinda Sutiwi; Elsje Theodora Maasawet; Muh Amir Masruhim; Usman Usman; Herliani Herliani; Ahmad Ahmad
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.11660

Abstract

This study aims to develop a flipbook-based encyclopedia on the biodiversity of the Plantae kingdom for Grade X students at SMAN 6 Samarinda to enhance their learning outcomes. The research employed the ADDIE development model, which includes five stages: Analysis, Design, Development, Implementation, and Evaluation. A total of 30 students participated in the implementation stage. The effectiveness of the product was evaluated using a one-group pretest-posttest design. Data were collected through interviews, needs analysis questionnaires, expert validation sheets, teacher assessments, student response questionnaires, and pretest-posttest multiple-choice questions. The feasibility results from experts comprising material, media, and language specialists showed high validity, with scores of 91.75, 78.88, and 90% respectively, indicating the product is "very feasible" for use. Student response data also supported this, with a practicality score of 89.6%, suggesting students found the encyclopedia engaging and beneficial. Furthermore, the N-gain analysis revealed a high effectiveness category, with an average gain score of 0.81. These results suggest that the developed flipbook-based encyclopedia effectively supports improves student learning outcomes in biology, particularly in the biodiversity topic.
Co-Authors -, Paino Ahmad Ahmad Ahyar Ahmad Ahyar Ahmad Aniek Widajanti Catra Indra Cahyadi Elsje Theodora Maasawet Ersaputra, Ricky Godfrida Any Yusriana Dewi Hanapi Usman Herliani Herliani Himmatul Aliyah Kristianto, Aloysius Hari Muh Amir Masruhim Nunuk Hariani S Nunuk Hariani Soekamto Sitti Syabariyah Steven A Samson Sutiwi