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All Journal Natural Science: Journal of Science and Technology Jurnal Ilmiah Bina Edukasi STUDI PELAKSANAAN SELFMEDICATION PADA PENDERITA DIARE BERDASARKAN TINGKAT PENGETAHUAN MASYARAKAT PESISIR KECAMATAN SOROPIA KABUPATEN KONAWE
Hasrat Hasrat
Tadulako University
Computer Science & IT Education Health Professions Public Health Other

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ANALISIS LOGAM TIMBAL (PB) PADA IKAN PETEK (LEIOGNATHUS SP.) DAN IKAN TERI (STELOPHORUS SP.) DI KAWASAN LAUT TELUK PALU SECARA SPEKTROFOTOMETRI SERAPAN ATOM Hasrat, Hasrat; Jamaluddin, Jamaluddin; Ibrahim, Nurlina
Natural Science: Journal of Science and Technology Vol 3, No 3 (2014): Volume 3 Number 3 (December 2014)
Publisher : Univ. Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (269.604 KB)

Abstract

Penelitian ini bertujuan untuk mengetahui adanya cemaran logam Timbal (Pb) dan jumlah cemarannya pada spesies ikan Petek dan ikan Teri di kawasan laut Teluk Palu. Metode yang digunakan adalah destruksi kering (dry ashing) kemudian dianalisis secara kualitatif menggunakan pereaksi : (1) KCN ditambah Ditizon 0,005%, (2) Serbuk KI dan (3) Serbuk Na2CO3, serta uji kuantitatif dengan metode Spektrofotometri Serapan Atom pada ?maks 217 nm. Hasil penelitian didapatkan bahwa pada pengujian kualitatif ikan positif mengandung logam timbal (Pb). Hasil pengujian kuantitatif didapatkan kadar rata-rata logam timbal (Pb) adalah : (1) Ikan Petek di lokasi Taman Ria 0,757 mg/kg ; (2) Ikan Petek di lokasi sekitar Muara Sungai Palu 1,752 mg/kg ; (3) Ikan Petek di lokasi sekitar Pantai Talise 0,719 mg/kg ; (4) Ikan Teri di lokasi Taman Ria 1,989 mg/kg ; (5) Ikan Teri di lokasi sekitar Muara Sungai Palu 2,075 mg/kg  dan (6) Ikan Teri di lokasi sekitar Pantai Talise 1,655 mg/kg. Kadar logam timbal (Pb) pada kedua ikan tersebut telah melampaui nilai batas maksimum berdasarkan SNI 7387:2009 yaitu 0,3 mg/kg.
UPAYA MENINGKATKAN HASIL BELAJAR IPA SISWA KELAS IV MENGGUNAKAN MODEL PEMBELAJARAN KOOPERATIF TIPE STAD Hasrat, Hasrat
Jurnal Ilmiah Bina Edukasi Vol 12 No 2 (2019): Jurnal Ilmiah Bina Edukasi
Publisher : Direktorat Riset dan Pengabdian pada Masyarakat (DRPM) Universitas Bina Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33557/jedukasi.v12i2.787

Abstract

The purpose of this study is to describe the efforts in improving science learning outcomes using the cooperative learning model type Student Teams Achievement Divisions (STAD) in class IV students of  SDN 05 Rantau Alai . The method used in this research is Classroom Action Research (CAR). In accordance with the Classroom Action Research (CAR) model, the research procedure consists of 4 stages, namely: (1) planning, (2) implementation, (3) observation, (4) reflection. This research consisted of pre-cycle, first cycle and second cycle. The results of this study indicate an increase in science learning outcomes for fourth grade students of SDN 05 Rantau Alai. This can be seen from the results of cycle I to cycle II, from a 60% percentage increase to 90% with the good group category
PENGARUH DEBT TO EQUITY RATIO, CURRENT RATIO, NET PROFIT MARGIN TERHADAP DIVIDEN PAYOUT RATIO PADA SEKTOR PERDAGANGAN, JASA DAN INVESTASI Tampubolon, Lasmaria; Marina, Marina; Hasrat, Hasrat
Aksara Public Vol 3 No 2 (2019): Mei (2019)
Publisher : EDUTECH CONSULTANT

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Abstract

This study aims to determine the affect of the debt to equity ratio, current ratio and net profit margin to the ratio of dividend payments in the trade, services and investment sectors borh partial and simultaneous listed on the Indonesian stock exchange in 2013-2017. Research methods are carried aout with quantitative methods. Classid assumption test., multiple linear regression test and hypothesis test. Testing this study using version 20 of SPSS windows. The sample collection technique uses purposive sampling and the results af the study show that patially the debt to equity ratio has an effect on dividend payout ratio, the value with a significant t-count of 0,005 is smaller tham 0,05. current ratio does not effect on dividend payout ratio, the value with a significant t-count of 0,730 greater tham 0,05. Net profit margin does not effect on dividend payout ratio, the value with a significant t-count of 0,304 greater tham 0,05. While simultaneously the debt to equity ratio has an effect on dividend payout ratio, the value with a significant t-count of 0,038 is smaller tham 0,0.
Co-Authors Jamaluddin Jamaluddin Marina Marina Nurlina Ibrahim Tampubolon, Lasmaria