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All Journal Jurnal Ilmiah Perikanan dan Kelautan Tesa Arsitektur Jurnal Lingkungan Binaan Indonesia
Mochamad Donny Koerniawan
Institut Teknologi Bandung
Arts Humanities Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Environmental Science Social Sciences

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Preferensi Penggunaan Material pada Atap Rumah Tinggal Dindha Nirmalasari; Irma Handayani Lubis; Hanson Endra Kusuma; Mochamad Donny Koerniawan
Tesa Arsitektur Vol 18, No 1: Juni 2020
Publisher : Unika Soegijapranata Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/tesa.v18i1.1199

Abstract

Roof material preferences for housing can be influenced from the location of the respondents, local climate, culture, knowledge and comfortable condition of the occupants. The aim of this research is to get the reasons behind the selection of roof material for housing. Quantitative method is used in this research by collecting data of online questionnaire. This online questionnaire is distributed using convenient sampling method (snowball-non-random-sampling). It was found the tendency of respondents who choose clay tile because of the comfort and affordability of the price. The tendency of respondents who choose ceramic tile and natural wood tile because of their beauty and sustaniability materials. Concrete is selected by respondents because of their durability and strength. Respondents who have tendency in Zinc, asbestos are selected because zinc and asbestos are easy to apply and commonly materials in their areas. Asphalt, metal, and PVC / galvalum / fiber are chosen by respondents for being lightweight materials.
The Activity of Mixed Microalgae Polysaccharides from Indonesia as Anti-Malaria in Vitro Mahendra Pujiyanto; Zhaza Afililla; Lilik Maslachah; Thomas Valentinus Widiyatno; Mochamad Donny Koerniawan; Eko Agus Suyono; Arief Budiman; Ulfah Juniarti Siregar; Lucia Tri Suwanti
Jurnal Ilmiah Perikanan dan Kelautan Vol. 14 No. 2 (2022): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v14i2.34766

Abstract

Highlight Research One of the content of microalgae that is beneficial for health is polysaccharides Polysaccharides of Indonesian microalgae can be promoted as anti-malarial Polysaccharides from Glagah, Spirulina and East Java microalgae inhibited the growth of plasmodium in vitro and had IC50 values of 3.18 µg/mL, 5.43µg/mL and 9.87 µg/mL, respectively   Abstract Malaria is an infectious disease caused by protozoan parasites of the genus Plasmodium that categorized as deadliest diseases in the world. Artemisinin and its derivatives are still recommended drugs for malaria therapy, however, there have been indications that Plasmodium parasites are resistant to this drug. Therefore, a study on polysaccharides from microalgae may be a potential as bioactive compound for anti-malaria. The aim of this study was to determine the effectiveness of the mixed microalgae polysaccharides as anti-malarial in vitro. Polysaccharides were extracted from three microalgae Spirulina sp., mixed microalgae Glagah and mixed microalgae East Java using the alkaline extraction method. The anti-malarial activity test refers to the concentration of polysaccharides used in calculating the IC50 value by probit analysis.  The concentration of polysaccharides of the three microalgae used were 0; 0.01; 0.01, 1, 10 and 100 µg/mL. The results showed that the IC50 values of polysaccharides of Glagah, Spirulina sp. and East Java microalgae were 3.18 µg/mL, 5.43µg/mL, and 9.87 µg/mL, respectively. In Conclusion, polysaccharides of Indonesian mixed microalgae can be promoted as anti-malarial.
Pengaruh Badan Air pada Iklim Mikro di Kota Pontianak Andina Syafrina; Mochamad Donny Koerniawan
Jurnal Lingkungan Binaan Indonesia Vol. 7 No. 4 (2018): JLBI
Publisher : Ikatan Peneliti Lingkungan Binaan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32315/jlbi.7.4.209

Abstract

Badan air merupakan salah satu potensi softscape pada lingkungan perkotaan yang dapat mempengaruhi ligkungan termal disamping fungsi hidrologis. Beberapa penelitian terdahulu telah mengukur sejauh mana badan air mempengaruhi iklim mikro, sehingga keberadaan badan air dapat menjadi pertimbangan dalam perencanaan suatu kawasan di perkotaan. Namun, saat ini belum banyak diteliti untuk iklim tropis lembab khususnya di Indonesia. Penelitian ini mengambil Kota Pontianak sebagai studi kasus. Penelitian menggunakan metode kuantitatif yang bersifat deskriptif dengan pengumpulan data melalui pengukuran lapangan dan observasi. Data pengukuran lapangan dan observasi kemudian dianalisis menggunakan analisis anova dan regresi. Hasil analisis menunjukkan jarak terhadap badan air, orientasi koridor badan air dan zona waktu memiliki pengaruh yang berbeda terhadap iklim mikro di koridor jalan yang terdapat badan air. Temuan juga menunjukkan pengaruh badan air pada koridor jalan menimbulkan nilai temperatur udara yang bervariasi (dapat lebih tinggi dan lebih rendah).
Co-Authors Andina Syafrina Arief Budiman Dindha Nirmalasari Eko Agus Suyono Hanson Endra Kusuma Irma Handayani Lubis Lilik Maslachah Lucia Tri Suwanti, Lucia Tri Mahendra Pujiyanto Thomas Valentinus Widiyatno Ulfah Juniarti Siregar Zhaza Afililla