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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati BAREKENG: Jurnal Ilmu Matematika dan Terapan Jurnal Kesehatan komunitas Indonesia
Mangimbulude, Jubhar Christian
Halmahera Perdamaian Polytechnic
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Health Professions Mathematics Mechanical Engineering Physics Public Health Transportation

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Efek pH Terhadap Pelepasan Fosfat Oleh Lumpur Aktif Dalam Kondisi Anaerob Mangimbulude, Jubhar Christian
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 2 (2003): June 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.989 KB) | DOI: 10.24002/biota.v8i2.2888

Abstract

Phosphate removal  in domestic wastewater or  industrial wastewater is a key factor of prevent eutrophication. Mechanisms of  biological  phosphate removal occurs  under both  of anaerobic and aerobic conditions.  Phosphate up take under aerobic condition  is much determined by phosphate released under anaerobic condition. The objective of this research was  to  understand the effect of  various of  external  pH  on phosphate released  by  activated sludge  under anaerobic conditions. For that purpose, the  experiments were  conducted  in  batch system  under anaerobic condition  at  pH of  6.0, 7.0, 8.0 and 9.0   separetely. PO4, Acetate  and MLVSS  were  measured  and  used  as  parameters to  analyze  process.  The results shown  that the highest of  phosphate released  and acetate consumed occurred at pH 9.0 and the lowest it was occurred at pH 6.0. The value of   phosphate/acetate ratio was calculated to be in variation  of 0.161  to 0.256  p-mol/C-mol  in  pH  range  of 6.0  to 9.0
Efek pH Terhadap Pelepasan Fosfat Oleh Lumpur Aktif Dalam Kondisi Anaerob Jubhar Christian Mangimbulude
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 2 (2003): June 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v8i2.2888

Abstract

Phosphate removal  in domestic wastewater or  industrial wastewater is a key factor of prevent eutrophication. Mechanisms of  biological  phosphate removal occurs  under both  of anaerobic and aerobic conditions.  Phosphate up take under aerobic condition  is much determined by phosphate released under anaerobic condition. The objective of this research was  to  understand the effect of  various of  external  pH  on phosphate released  by  activated sludge  under anaerobic conditions. For that purpose, the  experiments were  conducted  in  batch system  under anaerobic condition  at  pH of  6.0, 7.0, 8.0 and 9.0   separetely. PO4, Acetate  and MLVSS  were  measured  and  used  as  parameters to  analyze  process.  The results shown  that the highest of  phosphate released  and acetate consumed occurred at pH 9.0 and the lowest it was occurred at pH 6.0. The value of   phosphate/acetate ratio was calculated to be in variation  of 0.161  to 0.256  p-mol/C-mol  in  pH  range  of 6.0  to 9.0
Analisa Potensi Penularan COVID-19 Pada Tenaga Kesehatan RSUD Tobelo Terkonfirmasi Berdasarkan Nilai Cycle Threshold (CT) Jubhar Christian Mangimbulude; Irwanto Tandaan; Vonne Lumintang; Jeine S. Akualing; Alci Makawimbang; Olivia N. Loei
Jurnal Kesehatan Komunitas Indonesia Vol 17, No 1 (2021)
Publisher : Fakultas Ilmu Kesehatan Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (340.215 KB) | DOI: 10.37058/jkki.v17i1.2230

Abstract

SARS COV-2 merupakan virus yang menyebabkan peradangan ringan atau akutpada system pernapasan manusia. Nilai CT secara proporsional berbandingterbalik dengan dengan jumlah target asam nukleat dalam sample. Penelitian inibertujuan mengetahui kisaran nilai CT pada tenaga Kesehatan RSUD-Tobeloterkonfirmasi COCID-19 dan mengetahui korelasi antara nilai CT dengan waktupenyembuhan. Sumber data untuk Analisa menggunakan hasil uji PCR tenagaKesehatan RSUD Tobelo. Ada 67 tenaga kesehatan terkonfirmasi COVID-19bersadarkan uji PCR dengan nilai CT yang bervariasi dari rentang nilai 11,10hingga 36,59, ini menunjukan adanya variasi viral load. Nilai CT pasien yangpaling banyak berada pada rentang nilai 30-37. Hanya 8 pasien memiliki nilai CT 30. Indikasi kuat adanya korelasi antara nilai CT dengan waktu penyembuhan.Pasien yang memiliki nilai CT 20 tanpa dan dengan gejala memerlukan waktupenyembuhan lebih dari 20 hari. Masa penyembuhan melalui isolasi mandiriselama 10 hari direkomendasikan hanya pada pasien yang memiliki nilai CT30 tanpa gejala klinis
VISIT PROFILES AND TOURISM DESTINATION THRESHOLDS USING POLYNOMIAL AND MALTHUSIAN Dalengkade, Mario Nikolaus; Kaseside, Meidy; Maatoke, Cornelia Dolfina; Boleu, Fiktor Imanuel; Buka, Oktosea; Loklomin, Samsul Bahri; Mangimbulude, Jubhar Christian
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 16 No 1 (2022): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (650.581 KB) | DOI: 10.30598/barekengvol16iss1pp113-120

Abstract

Kumo, Kupa-Kupa, Pitu, and Luari beaches are tourist destinations that are always crowded with local and foreign tourists. This becomes interesting, because recently the problem of human population density in an area has become a hot topic for study. Using the polynomial method, it resulted in 6th order with R2 0.950 (Kumo), 0.868 (Kupa-Kupa), 0.799 (Pitu), and 0.399 (Luari) representing the distribution of visits. The highest levels of visits occurred in the twelfth, fifth, fourth, and sixth months, respectively. The analysis by applying the logistics function shows the highest level of visits throughout 2018 which are Kumo 283.95 tourists, Kupa-Kupa 342.12 tourists, Pitu 81.77 tourists and, Luari 1088.35 tourists. Based on the threshold analysis, the threshold value shows 255.56 tourists (Kumo), 297.08 tourists (Kupa-Kupa), 65.58 tourists (Pitu), and 836.42 tourists (Luari). The results of this study inform the level of tourist visits exceeding the threshold value in four tourist destinations. Given that the four tourist destinations carry the concept of ecology as a selling point, the manager needs to reorganize the level of tourist visits. Excess levels of tourist arrivals can have a negative impact on the comfort and sustainability of tourist destinations
Co-Authors Alci Makawimbang Boleu, Fiktor Imanuel Buka, Oktosea Cornelia Dolfina Maatoke Dalengkade, Mario Nikolaus Fiktor Imanuel Boleu Harsen Berg Janis Irwanto Tandaan Jeine S. Akualing Kaseside, Meidy Loklomin, Samsul Bahri Olivia N. Loei Vonne Lumintang