Indonesian Institute of Sciences

About: Indonesian Institute of Sciences is a facility organization based out in Jakarta, Indonesia. It is known for research contribution in the topics: Population & Biology. The organization has 4795 authors who have published 10544 publications receiving 76990 citations. The organization is also known as: Indonesian Institute of Sciences Cibinong, Indonesia.

Analysis of user readiness toward ICT usage at small medium enterprise in south tangerang

Abstract: Utilization of Information and Communication Technology (ICT) is still relatively low in the level of SMEs due to various limitations ranging from access to capital, till the marketing network. ICT is present to provide the ability for SMEs in improving the benefits and competitive advantage of the organization. This study aims to determine the level of readiness of SMEs in utilizing technology, especially ICT. The methodology used is a survey to see the technology readiness of 107 SMEs in South Tangerang selected by purposive sampling. The approach used is TRI (Technology Readiness Index) which is the individual perception of technology based on four criteria that is optimism, innovativeness, discomfort and insecurity. The results showed that the optimism and innovativeness variables significantly positively influence the technology readiness while the variables of discomfort and insecurity also significantly positively influence the readiness of ICT.

Depositional modes and lake-level variability at Lake Towuti, Indonesia, during the past ~29 kyr BP

Abstract: Lake Towuti (2.5°S, 121.5°E) is a long-lived, tectonic lake located on the Island of Sulawesi, Indonesia, and in the center of the Indo-Pacific warm pool (IPWP). Lake Towuti is connected with upstream lakes Matano and Mahalona through the Mahalona River, which constitutes the largest inlet to the lake. The Mahalona River Delta is prograding into Lake Towuti’s deep northern basin thus exerting significant control on depositional processes in the basin. We combine high-resolution seismic reflection and sedimentological datasets from a 19.8-m-long sediment piston core from the distal edge of this delta to characterize fluctuations in deltaic sedimentation during the past ~29 kyr BP and their relation to climatic change. Our datasets reveal that, in the present, sedimentation is strongly influenced by deposition of laterally transported sediments sourced from the Mahalona River Delta. Variations in the amount of laterally transported sediments, as expressed by coarse fraction amounts in pelagic muds and turbidite recurrence rates and cumulative thicknesses, are primarily a function of lake-level induced delta slope instability and delta progradation into the basin. We infer lowest lake-levels between ~29 and 16, a gradual lake level rise between ~16 and 11, and high lake-levels between ~11 and 0 kyr BP. Periods of highest turbidite deposition, ~26 to 24 and ~18 to 16 kyr BP coincide with Heinrich events 2 and 1, respectively. Our lake-level reconstruction therefore supports previous observations based on geochemical hydroclimate proxies of a very dry last glacial and a wet Holocene in the region, and provides new evidence of millennial-scale variations in moisture balance in the IPWP.

Potential endophytic microbes selection for antidiabetic bioactive compounds production

Abstract: endophytic microbes ability to produce bioactive compounds in common with its host plant is an opportunity to get source material antidiabetic drugs are natural, inexpensive and environmentally. With the aim of investigating the potential of endophytic fungi that have the potential to produce antidiabetic bioactive compounds, a total of 45 endophytic fungi were isolation from 6 species of Indonesia medicinal plants,,i.e.,Mahoni {Swietenia mahagoni Jacq.},Sambiloto {Andrographis paniculata Ness}, kumis kucing {Orthosiphon spicatus BBS}, Mengkudu {Morinda citrifolia L.}, Sirih merah {Piper crocatum L.}, and Sirih hitam {Piper oarnatum sp.} Has ben done.fungi isolate were fermented in potato Dextrose Broth medium for 14 days, then extracted with ethylaacetate followed by Thin Layer Chromatography {TLC} test. Screening was conducted using a-glucosidase test.The results showed that there are 7 fungi isolate, i.e., A.Ap.3F {98.84 and 81.40 persen}, A.Ap.4F {96.87 and 81.40 persen}, B.Ap.1F {98.48 and 87.49 persen}.,B.Os.1F{93.91 and 89.01 persen}, A.Pc.1F {87.66 and 82.08 persen}, B.Pc.1F {85.68 and 89.35 persen} and B.Pc.2F{83.51 and 87.57 persen} Which gave inhibitory activity to a-glucosidase enzyme. These results demonstrate that 7 endophytic fungi has the potential to produce antidiabetic agents.

インドネシア西ジャワ州ボゴール植物園におけるアリ類の種多様性，およびムカシアリ属2 新種の記載

Abstract: Ant fauna was investigated in the Bogor Botanic Garden (Kebun Raya Bogor), West Java, Indonesia, by the following sampling methods: (1) collection of ants on tree trunks, (2) collection of litter ants using a handy sifter, (3) pitfall traps, (4) sugar baits, (5) collection of ants on bamboo shoots, (6) searching for colonies, (7) collection of foraging workers. In all, 216 species representing all the subfamilies known from the Oriental region were collected in 1985 and between 1990 and 1998. After intensive collections in 1995 and 1997, the cumulative number of ant species was still increasing slowly in 1998. The ant fauna was compared with the results from other sites in Southeast Asia, and those of preliminary surveys made by us in four national parks in West Java, i.e., Ujung Kulon and Pangandaran (lowland forests), and Gunung Halimun and Gunung Gede (mountain forests). Species composition in the Bogor Botanic Garden was similar to that of lowland rainforests in West Java, but remarkably different from mountain forests.

W and Z boson production in p-Pb collisions at √sNN=5.02 TeV

Abstract: The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at √ sNN = 5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (−4.46 10 GeV/c are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon-nucleon collisions within uncertainties.