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Articles 179 Documents
ANALISIS BENCANA LONGSOR DI DESA KALITLAGA KABUPATEN BANJARNEGARA PROVINSI JAWA TENGAH Nasibu, Rito
Sainstek Vol4, No 3, 2009
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Abstract

Banjarnegara is one of the sub-district in Central Java (a province in Indonesia) which is located in hazardous landslide area. There are some sub district which is located in high level hazardous landslide area: Karangkobar, Banjarnegara, Banjarmangu, Kalibening, and Madukara. Meanwhile, Kalitlaga, Purwonegoro, Pagentan, Susukan and Wanayasa is located in middle level hazardous landslide area. The kind of landslide in Kalitlaga is kind of curve debris flow which caused by sand stones movement on clay stones as slippery area. It makes the clay stones can not release the water instead it becomes slippery. The land used has to be planned by the society, so the plant which has been planted is not weight on the land. Societies awareness to do not construct the artificial recharge, because it can raise the ground water level and make the land unstable. A good drainase system has to be developed to reduce water absorption. The supplies of extensometer, a tool to measure landslide have to be increased and the government is expected to fund the supplying. Government and societies role are required in landslide disaster mitigation efforts in Kalitlaga Village, Pagetan, Banjarnegara Keywords: disaster area, landslide, extensometer.
FITOREMEDIASI SEBAGAI ALTERNATIF PENGURANGAN LIMBAH MERKURI AKIBAT PENAMBANGAN EMAS TRADISIONAL DI EKOSISTEM SUNGAI TULABOLO KABUPATEN BONE BOLANGO Mahmud, Marike; Lihawa, Fitryane; Isa, Ishak; Patuti, Indriaty M
Sainstek VOL 07, NO 02, 2013
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Abstract

Penelitian ini bertujuan untuk mengetahui kemampuan tumbuhan dalam mengakumulasi merkuri dari limbah akibat kegiatan penambangan emas tradisional di Sungai Tulabolo Kecamatan Suwawa Kabupaten Bone Bolango. Mengkaji serapan merkuri dengan sistem fitoremediasi di ekosistem perairan sebagai strategi pengelolaan ekosistem aliran Sungai Tulabolo akibat penambangan emas tradisional untuk mengantisipasi terjadinya pencemaran lingkungan. Mengkaji kondisi ekosistem perairan ( tumbuhan, air dan sedimen) sebelum dan setelah dilakukannya adanya fitoremediasi. Penelitian ini berlokasi di penambangan emas tradisional yang berada di Kecamatan Suwawa Timur Kabupaten Bone Bolango yaitu pada Daerah Mohutango di bagian tengah Sub DAS Tulabolo. Pengambilan sampel air dan sedimen dilakukan di Sungai Mohutango dan lokasi pengolahan sekitar daerah Fitoremediasi. Analisis merkuri di air dan sedimen dilakukan di laboratorium Perikanan Provinsi Gorontalo. Analisis merkuri pada tumbuhan dilakukan di laboratorium Penelitian dan Pengujian Terpadu Universitas Gadjah Mada. Hasil penelitian menunjukkan bahwa tumbuhan yang terdeteksi mengakumulasi merkuri terbesar di ekosistem Sungai Tulabolo berturut-turut adalah tumbuhan paku pakis, keladi tikus, colocasia esculenta red stem, rumput-rumputan (paspalum conyugatum) dan colocasia esculenta batang hijau. Tumbuhan colocasia esculenta (batang hijau) sangat toleran pada air limbah dan dapat menyerap merkuri dengan baik sehingga cocok digunakan sebagai media fitoremediasi di ekosistem Sungai Tulabolo. Hasil analisis menunjukkan bahwa kondisi lingkungan setelah fitoremediasi menjadi lebih baik terutama pada sedimen dimana merkuri mengalami penurunan yang sangat baik. Hasil analisis uji beda T-Test dengan paired samples test menunjukkan terdapat perbedaan yang signifikant antara penyerapan merkuri oleh akar tumbuhan sebelum dan sesudah fitoremediasi.
HUBUNGAN EKONOMI KELUARGA DENGAN STATUS GIZI IBU HAMIL DI PUSKESMAS WONGKADITI KOTA GORONTALO PanaI, Heni
Sainstek VOL 07, NO 02, 2013
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Abstract

Penelitian ini bertujuan untuk mengetahui hubungan ekonomi keluarga dengan status gizi ibu hamil di Puskesmas Wongkaditi Kota Gorontalo Tahun 2011. Metode penelitian ini termasuk jenis penelitian deskriptif korelasional. Populasi sebanyak 68 orang. Semua anggota populasi dijadikan subjek penelitian. Variabel dalam penelitian ini terdiri dari variabel bebas yaitu ekonomi keluarga dan variabel terikat adalah status gizi ibu hamil. Analisis data pada penelitian ini menggunaka uji statistik Chi Square (X2).Hasil penelitian didapatkan bahwa keluarga yang ekonomi tinggi sebanyak 33,82% dan keluarga yang ekonomi rendah sebanyak 66,18% sedangkan ibu hamil yang status gizi baik sebanyak 42,65% dan ibu hamil yang status gizi kurang 57,35%. Dari hasil uji Chi Square yang disesuaikan dengan tingkat derajat kemaknaan 0,05 didapatkan X2 hitung = 13,925 dan X2 tabel = 3,481; berarti X2 hitung lebih besar dari X2 tabel. Kesimpulan; ada hubungan yang sangat signifikan antara ekonomi keluarga dengan status gizi ibu hamil di Puskesmas Wongkaditi Kota Gorontalo.
Tinjauan Mengenai Kandungan Logam Berat pada Beberapa Bahan Makanan dan Minuman dengan Spektrometer serapan Atom Paendong, Evie
Sainstek Vol 3, No 2, 2008
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Abstract

Beberapa bahan makanan dan minuman dapat mengandung logam berat seperti timbal, cadmium, seng, arsenik, dan merkuri. Keberadaan logam pada bahan makanan bisa diakibatkan pengaruh pencemaran lingkungan atau bahkan dari proses pengolahan makanan itu sendiri. Beberapa hasil penelitian melaporkan adanya pencemaran cadmium pada beras dan makanan laut, pencemaran merkuri pada hasil laut. Beberapa negara termasuk Indonesia, menerapkan aturan mengenai standar kandungan logam yang aman pada bahan makanan. Hal tersebut merupakan salah satu upaya untuk mengurangi dampak buruk logam-logam tersebut terhadap kesehatan manusia. Proses kontrol kandungan logam pada bahan makanan memerlukan analisa yang akurat dan tepat, saat ini AAS merupakan salah satu teknik analisa ynag dapat memberikan informasi mengenai kandungan beberapa logam berat pada bahan makanan.
DETERMINAN STATUS GIZI ANAK BALITA DARI KELUARGA NELAYAN DI WILAYAH PUSKESMAS TILOTE KABUPATEN GORONTALO TAHUN 2010 Tumenggung, Imran
Sainstek Vol 6, No 1, 2011
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Abstract

The lack of nutrient in children below five years old can cause disorder in growth and development. This has become a national health problem. The aim of the study was to find out determinants which correlate with nutritional status of children below five years old of the fisherman family at the Tilote Public Health Center in Gorontalo regency. The study was a cross sectional study which was conducted from August to October 2010. The number of samples was 200 children below five years old selected by simple random sampling. The data were analyzed by using bivariate and multivariate analysis. The results of bivariate analysis indicate that nutritional status (height/age) of children below five years old correlates with mothers education (p = 0.004), knowledge (p = 0.000), upbringing pattern (p = 0.000), energy consumption (p = 0.003), protein consumption (p = 0.032), and infectious disease (p = 0.016). Bivariate analysis indicate that nutritional status (weight/height) correlates with mothers education (p = 0.004), knowledge (p = 0.000), upbringing pattern (p = 0.009), energy consumption (p = 0.000), and infectious disease (p = 0.000). The multivariate analysis indicates that knowledge of mother is the most dominant factor correlating with the nutritional status of children below five years old based on height/age (p = 0.000; Wald = 47.556), and so is infectious disease based on weight/height (p = 0.001; Wald = 12.037).Efforts to improve maternal nutrition knowledge as well as efforts to prevent and control infectious diseases in children under five years old from the fisherman family are necessary.
PARTISIPASI MASYARAKAT DALAM PENGELOLAAN SUMBERDAYA LAHAN DI DAERAH ALIRAN SUNGAI (DAS) BONE PROVINSI GORONTALO K. Baderan, Dewi Wahyuni
Sainstek Vol 1, No 3, 2006
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Abstract

The aim of this research is to see the effect of the using and the participate of society in managing resource area at Bone river stream area. The result of the research shows that the land around Bone River Stream Area (DAS) had degradated and the participate of society has showed by following training and understanding a good land conservation technique. The first thing that have done is by approaching the society especially who have the land around upstream of Bone DAS and then give them a training or ideas about a good land conservation technique. The method that has used in this research is interview, social, economic, ecological approach by giving them some questions even in individual or questioner. Based on the questioner it has found that a lot of society have given concrete answers about the problem of land resource managing, it can be seen based on the level of education, job and their motivation.
POTENSI PENGHASILAN HORMON IAA OLEH MIKROBA ENDOFIT AKAR TANAMAN JAGUNG (Zea mays) Retnowati, Yuliana; Uno, Wirnangsi D; Putri, Siti Humairah Eka
Sainstek VOL 06, NO 06, 2012
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Abstract

The aim of the study was to obtain an endofityc microorganisms that potential to produce IAA hormone in the root of corn and to analyze the ability to produce IAA by manipulating of the growth medium that used the liquid waste of tofu industry. The method based on descriptive methode that describe the ability of ed endofityc microorganism in IAA hormone producing at the liquid waste of tofu industry. The isolation of endofityc bacterial based on Radu and Kqeen method (2002), then characterization and ion was done. The ability producing IAA hormone test was based on colorimetry method used spectrophotometer on 530 nm of wavelength. The results showed that there were six isolates of endophytic bacteria isolated from the roots of Bisi and Motoro II maize varieties which shows the character of colony morphology and cell-specific forms. The results of measurements of the ability of the hormone IAA in vitro income showed an increase in levels of IAA until the seventh day of incubation. the test results of hormone production on the medium tofu industrial wastewater know precisely a decline compared to in vitro tests and the highest IAA levels achieved at 48 hours of incubation.
ANALISIS EDIT DISTANCE MENGGUNAKAN ALGORITMA DYNAMIC PROGRAMMING Mulyanto, Arip
Sainstek Vol 5, No 2, 2010
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Abstract

Edit distance merupakan jumlah minimum point mutation yang diperlukan untuk merubah suatu string ke string yang lain. Point mutation tersebut adalah mengganti, menambah dan menghapus sebuah karakter. Konsep edit distance banyak digunakan dalam proses manipulasi data berbagai aplikasi komputer. Berbagai algoritma dapat digunakan dalam pencarian dan penentuan edit distance. Dalam penelitian ini, dilakukan eksperimen untuk mencari edit distance menggunakan algoritma dynamic programming. Sedangkan proses perhitungannya dibantu dengan fungsi-fungsi yang ada dalam Microsoft Excel. Hasil eksperimen menunjukkan kompleksitas waktu (time complexity) untuk algoritma dynamic programming adalah O(|s1|*|s2|). Jika s1 dan s2 mempunyai panjang yang hampir sama, katakanlah n, maka kompleksitas waktunya adalah O(n2). Kompleksitas ruang (spacecomplexity) untuk algoritma ini juga O(n 2), karena keseluruhan dari matriks digunakan untuk menemukan solusi yang optimal. Kata kunci : edit distance, dynamic programming, kompleksitas.
KETAHANAN HIDUP Drosophila melanogaster dan Drosophila ananassae Lamangantjo, Chairunnisa
Sainstek Vol 4, No 1, 2009
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Abstract

This research aim to observe of Drosophila melanogaster and D. ananassae mortality and survively. It conducted at Genetic Laboratory in Biologys Departement Gorontalo State University. Data Analyzes that used to known a value of mortality was the analyzes of Mortality and Survively. The results showed that the highest mortality rate = 19,28% (k = 0,09) was seen on D. melanogaster, whereas the highest survivor (k = 0,06) was seen on D. ananassae ( mortality rate = 12,58%).
DIURETIC TEST OF HERB SELEDRI WATER BOILED (Apium graveolens L.) Lamondo, Djuna
Sainstek Vol 2, No 2, 2007
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Abstract

This research was conducted at Biology Laboratorium FMIPA Gorontalo State University. The time range for this research was 2 month (Mey, 13 rd to June, 13 rd 2006). The subject was hamster siria amount 15 of age 4 months. The method of this research was experimental that consist of 3 treatments and 5 repeats. Treatment A: hamster siria was added herba seledri water boiled by 0.06 gr/30 gr BB dosis. The dosis was found by pre research. Treatment B: hamster siria was added furosemida suspension into NACMC 1% by 0.0006 gr/30 gr BB as positive control. Treatment C: hamster siria was added aquades 2.5 ml/30 gr BB as negative control. Variables that was searched were dependent variable of herba seledri water boiled and independent variable was hamster siria urine volume. For analysing data researcher used Kruskal-willis test. Result of this research saw that total volume of hamster urine added by herba seledri water boiled was high, namely 17.78 ml and volume of hamster urine added by treatment of furosemida suspension 9.3 ml and volume of hamster urine added by water flame was 4.3. Average of hamster urine volume added by herba seledri water boiled was higher 4 ml than average hamster urine volume added by treatment of furosemida suspension 1.8 ml, and average of hamster urine added by water flame was 0.8 ml. Based on statistic test saw that value H = 38.18 higher than value X o,os (2) = 5.991, so Ho wasnt accepted. Finally, it can be concluded that herba seledri water boiled added to hamster siria has diuretic effect.