PUBLIKASI PENELITIAN

Berisi daftar Publikasi Penelitian LIPI

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2018 Preliminary study of soil permeability properties using principal component analysis Meti Yulianti, Yuli Sudriani and Hadiid Agita Rustini Soil permeability measurement is undoubtedly important in carrying out soil-water research such as rainfall-runoff modelling, irrigation water distribution systems, etc. It is also known that acquiring reliable soil permeability data is rather laborious, time-consuming, and costly. Therefore, it is desirable to develop the prediction model. Several studies of empirical equations for predicting permeability have been undertaken by many researchers. These studies derived the models from areas which soil characteristics are different from Indonesian soil, which suggest a possibility that these permeability models are site-specific. The purpose of this study is to identify which soil parameters correspond strongly to soil permeability… Lihat
2018 Study of rainfall-induced landslide: a review A Tohari Rainfall-induced landslides pose a substantial risk to people and infrastructure. For this reason, there have been numerous studies to understand the landslide mechanism. Most of them were performed on the numerical analysis and laboratory experiment. This paper presents a review of existing research on field hydrological condition of soil slopes leading to the initiation of rainfall-induced landslide. Existing methods to study field hydrological response of slopes are first reviewed, emphasizing their limitations and suitability of application. The typical hydrological response profiles in the slope are then discussed. Subsequently, some significant findings on hydrological condition leading to rainfall-induced landslides are summarized… Lihat
2018 PERLAKUAN POLYETHYLENE GLYCOL SECARA IN VITRO TERHADAP PERTUMBUHAN TUNAS MUTAN TAKA UNTUK SELEKSI TOLERAN KEKERINGAN Betalini Widhi Hapsari M.Si., Andri Fadillah M M.Si, Rudiyanto S.P.,Dr. Tri Muji Ermayanti Tacca leontopetaloides (L.) Kuntze merupakan salah satu tanaman umbi-umbian yangberpotensi untuk pangan alternatif. Induksi mutasi antara lain dengan radiasi sinar Gamma merupakan salah satu upaya untuk perbaikan genetik tanaman. Pada taka telah diperoleh kandidat mutan yang perlu diseleksi untuk mendapatkan genotipe toleran kekeringan. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh pemberian PEG secara in vitro terhadap pertumbuhan mutan tunas taka hasil radiasi sinar Gamma untuk seleksi toleran kekeringan. Penelitian menggunakan 3 klon mutan taka hasil radiasi dosis 20, 30, dan 40 Gy dan tunas tanpa radiasi (kontrol). Semua tunas ditanam pada media MS dengan penambahan 0; 2.5; 5; 7.5;… Lihat
2018 ZO.SS1.5. Comparison of fecal preservation and extraction methods for steroid hormone metabolite analysis in wild crested macaques Gholib Gholib, Michael Heistermann, Muhammad Agil, Iman Supriatna, Bambang Purwantara, Taufiq Purna Nugraha, Antje Engelhardt Since the non-invasive field endocrinology techniques were developed, several fecal preservation and extraction methods have been established for a variety of species. However, direct adaptation of methods from previous studies for use in crested macaques should be taken with caution. We conducted an experiment to assess the accuracy and stability of fecal estrogen metabolite (E1C) and glucocorticoid metabolite (GCM) concentrations in response to several preservation parameters: (1) time lag between sample collection and fecal preservation; (2) long-term storage of fecal samples in 80 persen methanol (MeOH) at ambient temperature; (3) different degrees of feces drying temperature using a conventional oven;… Lihat
2018 Additions to the Indonesian crab fauna of the genus Mariaplax Rahayu & Ng, 2014, and notes on Hexapus timika Rahayu & Ng, 2014 (Crustacea, Decapoda, Brachyura, Hexapodidae) Dwi Listyo Rahayu, Ernawati Widyastuti Hexapus timika Rahayu & Ng, 2014 is redescribed based on newly collected male and female specimens from Papua, Indonesia. Three new species from Jakarta Bay and Sunda Strait, Indonesia, are added to the genus Mariaplax, the richest genus in the family Hexapodidae, hitherto having 14 species. Mariaplax pitrai n.sp. has the carapace covered by small, closely-spaced tubercles and long ambulatory legs, resembling M. chenae Rahayu & Ng, 2014 but easily separated by the position of female vulvae. Mariaplax hispida n.sp. is unique for the presence of short stiff setae on the outer face of the chelipeds and pereopods 2-4. Mariaplax… Lihat
2018 ZO.SS1.5. The Fish Diversity of Mangrove Waters in Lombok Island, West Nusa Tenggara, Indonesia Gema Wahyudewantoro Abstract. Wahyudewantoro G. 2018. The fish diversity of mangrove waters in Lombok Island, West Nusa Tenggara, Indonesia.Biodiversitas 19: 71-76. Lombok Islands waters are the main gateway of the mass water flow from the Pacific and Indian Oceans. Therefore, it is suspected the fish species that inhabit them is very diverse. The aim of the research was to reveal the diversity of mangrove fish species, with a case study in West Lombok and Central Lombok. Fishes were caught using cast net with mesh sizes of 1.5 cm and 2.5 cm, gill net with mesh sizes of ľ inch, 1.5 inch and… Lihat
2018 Mercury concentration on Enhalus acoroides and Thalassia hemprichii at Seribu Islands Suratno dan Andri Irawan Mercury is a toxic heavy metal element that can damage embryo development. Although this element is highly toxic, some human activities such as mining and industries are still using it. The uncontrolled usage of this element leads to pollution problem in the environment, which include the seagrass ecosystem in the coastal area of Seribu Islands. For that, to gather more information about mercury pollution in the seagrass beds of these islands, the concentration of mercury (Hg) was measured in sediment, rhizomes, roots and leaves of two species of seagrass (Enhalus acoroides and Thalassia hemprichii) from Lancang Island, Pari Island and… Lihat
2018 ZO.SS1.5. Novel Single Nucleotide Polymorphisms in the Sumba Ongole (Bos indicus) Growth Hormone Gene PASKAH PARTOGI AGUNG, WIDYA PINTAKA BAYU PUTRA, SAIFUL ANWAR, ARI SULISTYO WULANDARI, MOCH SYAMSUL ARIFIN ZEIN, SYAHRUDDIN SAID, ADITYA SUDIRO The Sumba Ongole cattle (Bos indicus) is one of the local Indonesian cattle breeds and has excellent potential to gain higher carcass yield compared to other local cattle breeds in Indonesia. The Growth Hormone (GH) gene was a potential target for molecular study due to its importance as growth regulating hormone. This study was aimed to determine Single Nucleotide Polymorphism (SNP) profile of the GH gene in the Sumba Ongole (SO) cattle using PCR and DNA sequencing methods from 34 individual DNA samples. The results from this study showed that there are 28 SNPs identified within the GH gene; Twenty… Lihat
2018 Nickel extraction from nickel matte Rudi Subagja In present work, the results of research activities to make nickel metal from nickel matte are presented. The research activities were covering a) nickel matte characterization using Inductively Couple plasma (ICP), Electron Probe Micro Analyzer (EPMA) and X-Ray Diffraction (XRD), b) nickel matte dissolution process to dissolve nickel from nickel matte into the spent electrolyte solutions that contains hydrochloric acid, c) purification of nickel chloride leach solution by copper cementation process to remove copper using nickel matte, selective precipitation process to remove iron, solvent extraction using Tri normal octyl amine to separate cobalt from nickel chloride solutions and d) Nickel… Lihat
2018 PERTUMBUHAN TALAS BENTUL TETRAPLOID DAN DIPLOID PADA MEDIA PERBANYAKAN, AKLIMATISASI DAN KONFIRMASI TINGKAT PLOIDI Dyah Retno Wulandari M.Si.,Dr. Tri Muji Ermayanti , Aida Wulansari S.Si., M.Si., Aida Wulansari dan Tri Muji Ermayanti Induksi poliploidi secara in vitro pada talas kultivar Bentul perlu dilakukan untuk meningkatkan produktivitas, menciptakan genotipe toleran kekeringan danmeningkatkan ketahanan terhadap hama penyakit. Oleh karena itu perlu diketahuipertumbuhannya pada media perbanyakan, daya hidupnya pada tahap aklimatisasi danstabilitas tingkat ploidinya. Penelitian ini bertujuan untuk mengetahui pertumbuhan tunas tetraploid pada media perbanyakan, daya tumbuh pada proses aklimatisasi di rumah kaca serta uji kestabilan tingkat ploidi. Talas diploid dipergunakan sebagai kontrol. Percobaan perbanyakan tunas dilakukan dengan Rancangan Acak Lengkap pada media optimal dengan 15 ulangan, pertumbuhan tunas dicatat pada minggu ke-6. Aklimatisasi planlet dilakukan juga dengan Rancangan Acak Lengkap menggunakan 9 ulangan dan… Lihat