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Widyariset
Published by Pusbindiklat Peneliti LIPI
ISSN : -     EISSN : 24610976     DOI : 10.14203
Core Subject : Science, Engineering,
Aerospace Engineering Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics
Widyariset is a scientific journal which publishes the results of research and development, assessment, and systematic thinking about Natural Science.
Arjuna Subject : Umum - Umum
Articles 476 Documents
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THE POTENTIAL OF Paenibacillus spp. AS PLANT GROWTH PROMOTER IN TROPICAL PEAT ECOSYSTEM Andri Frediansyah; I Made Sudiana
Widyariset Vol 16, No 2 (2013): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.16.2.2013.201-210

Abstract

Microbial activity in soil play key important role for maintaining ecosystem health. The objective of this research was to explore the potential of bacteria isolated from Kalampangan, Central Kalimantan tropical peat soil as biofertilizer agent. We found 4 isolates have ability to produce amylase and cellulose and have nirK gene as denitrify ability. Base on the 16S rDNA analyses and morphological observation, those bacteria were identified as Paenibacillus durum, Paenibacillus polymyxa, Paenibacillus macerans, and Paenibacillus azotofixans. P. polymyxa also can produce plant growth hormone (indole acetic acid), P. azotofixans contains ow gene indicating that the strain is able to solubilize calcium as well as alluminium phosphate. All strain excepted P. durum was also contains NifH gene indicating that this strain is able to fix N2. With these characteristics the fourth isolates of bacteria can be used as agents of biological fertilizers for peatland.
LITERASI TEKNOLOGI INFORMASI DAN KOMUNIKASI (TIK) DI KALANGAN PEJABAT PEMERINTAH DAERAH PROVINSI BENGKULU TAHUN 2007 Emyana Ruth Eritha Sirait
Widyariset Vol 12, No 3 (2009): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.12.3.2009.103-110

Abstract

Information and Communication Technology (ICT) which has become main component development supporting in various sector nowadays, is used by government to increase government performance through Electronic Government program. One initial step that is needed in developing e-government is e-literacy in ICT field especially in circle of government official as organizer and user of e-government. So, this research is intended to measure government official's ICT literacy, in case ofBengkulu Province regional official, in supporting e-government implementation in the future. The result of this research is supposed to be a reference to arrange some policy in order to increase human resource quality related to e-government. ICT literacy is related and influenced by information literacy, computer literacy, and internet literacy. The result of the research by using survey method shows that in circle of Bengkulu Province government official, information literacy is quite good, computer literacy is still low, and internet literacy is very bad, so by referring to Personal-Capabilty Maturity Model (P-CMM) model, ICT literacy in Bengkulu Province government official is placed in first level.   
COMPARATIVE STUDY TOXICITY LC 50 AFLATOXIN, OCHRATOXIN, ZEARALENON IN PEANUT (Arachis Hypogaea L) R.Haryo Bimo Setiarto
Widyariset Vol 14, No 3 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.14.3.2011.535-540

Abstract

Afl atoxin, ochratoxin, zearalenon is a compound resulted from metabolism process Aspergillus fl avus, As-pergillus ochraseaus and Fusarium graminearum which grows in moist peanut. A long period and over dose of afl atoxin, ochratoxin, zearalenon can be caused liver cancer, cirrhosis, carsinoma, chronic hepatitis, jaundice, food absorption disturbance, digestion disturbance and immunosuppressive. This research have focused on com-parative study about toxicity afl atoxin, okhratoxin and zearolenon compound. The result of toxicity test by using Artemia salina, it was knowingly detected that LC50 value from crude extract peanut of ochratoxin, zearalenon, afl atoxin was 296.82 ppm, 366.28 ppm, 251.55 ppm respectively. Finally it can be concluded that afl atoxin com-pound from peanut sample had toxicity effect of the most dangerous than other compound (ochratoxin, zearolenon) due to lethal 50% Artemia salina population in smallest concentration.
POTENTIAL ANTIOXIDATIVE AND ANTIFUNGAL ACTIVITIES FROM Eugenia polyantha WIGHT Raden Arthur Ario Lelono
Widyariset Vol 15, No 2 (2012): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.15.2.2012.437–446

Abstract

Antioxidative activities of Eugenia polyantha Wight bark extracts grown in Indonesia were evaluated using 2,2-diphenyl–1-picrylhydrazyl radical-scavenging, β-carotene bleaching assay, and thiobarbituric acid reactive substance (TBARS) assay. The extracts also showed protection towards lipid peroxidation on cooked (68%) and raw meat (56%). The methanol-water extract showed the highest level of free radical-scavenging activity ((ED50) = 0.18 mg/ml) and protection from β-carotene bleaching (85.7% at 100 μg/ml). The extracts showed the highest total phenolic content (856 mg gallic acid equivalent (GAE)/g and 161 mg catechin equivalent (CE)/g) and total antioxidative capacity (449 mg ascorbic acid equivalent (AAE)/g). A relationship between total antioxidative capacity and total phenolic content was recognized from E. polyantha bark extracts. Furthermore E. polyantha essential oil demonstrated inhibition growth activity of several agricultural pathogenic fungus i.e., Pleurotus ostreatus (46.2%), Fusarium oxysporum (38.1%), and Coreynespora cassicola (32.2%).
KARAKTERISASI FISIKOKIMIA CTMP BERTANDA TEKNESIUM-99m SEBAGAI RADIOFARMAKA PENYIDIK KANKER TULANG Isti Daruwati; Misyetti Misyetti; Maula Eka Sriyani
Widyariset Vol 12, No 1 (2009): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.12.1.2009.133-139

Abstract

Radiopharmaceutical for bone cancer seeking was developed in variable phosphonate compound labeled with technetium-99m, formally pyrophosphate and diphosphonate compound. Either pyrophosphate or diphosphonate still unsatisfied to use as radiopharmaceuticals for bone seeking agent because the high accumulation in lever, muscle and blood. CTMP have higher affinity than others. The Physicochemical characterization of 99"Tc-CTMP has been conducted. The characteristic of labeled compound have to fulfill the criteria as the good radiopharmaceutical. The characteristic such as radiochemical purity, electric charge, lipophilicity, plasma protein binding, and hydroxy apatite binding. The results showed that the radiochemical purity greater than 95% (96,83 % ± 1,35), have a negative electric charge, lipophilicity -2,61, plasma protein binding 31,90 % ± 3,3, hydroxyl apatite binding 76,6% at 3 hours. The value ofhidroxy apatite binding was high, it showed CTMP have indicated a great potential as radiopharmaceutical for bone cancer seeking. 
THE HEALTH DESCRIPTION OF CHILDREN AGED 12–24 MONTHS IN LOLOFITU-MOI SUB DISTRICT, NIAS DISTRICT IN 2006 Jerico Franciscus Pardosi
Widyariset Vol 14, No 1 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.14.1.2011.247-256

Abstract

Nias District has under-five mortality rate of 66.3 per 1,000 live births in 2005 which is considered high. This study aimed to identify the health description of children aged 12–24 months in Lolofitu-moi sub district, North Sumatera Province. Cross sectional design was applied to measure children aged 12–24 months health status. This study is a cluster survey which was conducted from October 9 to 15, 2006. The survey sample included 97 mothers who have children aged 12–24 months in 5 villages by using LQAS method. Questionnaire was used for data collection. The results showed that 79 children sick, 19 children deaths before aged 12 months with 9 deaths occurred after aged 12 months. This study found that 9.3% children aged 12–24 months has low nutrition status.For immunization status, only 4 children out of 97 respondents has a complete immunization report. This study has recommended for Nias District Health Office to improve and strengthen children aged 12–24 months health care supported with regular health promotion for mothers.
CONCEPTION OF GENIE IN THE HIKAYAT TAMIM AD-DARI Moch. Lukluil Maknun
Widyariset Vol 15, No 1 (2012): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.15.1.2012.175–186

Abstract

This is a study of the “Hikayat Tamim ad-Dari” which used two theories and two methods: philology andBraginsky’s function. There were three variants of the manuscript that could be reached in the National Libraryof Indonesia. The researcher then selected the three manuscripts and decided the script under the code W. 101to be the primary source according to the criterion of material wideness. The selected manuscript was not onlytransliterated from Jawi into Latin but also edited to be the material for functional analysis. In the editing process,the text containing information of jin was then analyzed, categorized, and described in order to seek the wholeconcept of the jin. The conception revealed from the text were the life of the genie, their physical description, theirstrengthens and weaknesses, their religiosity, their interaction with humans and some creatures associated withthem.
MODELING OF SEPTIC TANKS SEEPAGE NEAR DUG WELLS IN MARGAHAYU VILLAGE, BANDUNG REGENCY Dedi Mulyadi; Rizka Maria; Khori Sugianti; Arifan Jaya Syahbana
Widyariset Vol 4, No 1 (2018): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.4.1.2018.75-88

Abstract

Dense settlements have an impact on pollution, one of which is domestic pollution which results in groundwater and soil water pollution at ground level. Identification of pollution that occurs below the soil surface (groundwater contamination) is more difficult to detect, so modeling is needed to find out how the rate of groundwater pollution rate. Modeling is done by using water sampling method at dug well at location adjacent to septic tank. Sampling ground water and infiltration modeling is done by using Geostudio SEEP/W software. The research area is in Margahayu village, Bandung regency. The results of laboratory analysis and physical observation in the field show that the Margahayu region has ammonium (NH4-N) content which is above the standard quality threshold. This condition is reinforced by modeling simulation results that there has been domestic sewage from septic tanks to dug wells. Pollution has reached groundwater level with depth ranged between 4-5 meters. The distance of wells adjacent to the septic tanks affects the quality of groundwater. In the KB area 17 it is indicated that the contamination in the residents' wells in harike-3i, KB new on the 32-40 day time frame, and KB new 2 on the 24th day. Distance sources of contaminants and soil permeability play an important role in determining the travel time of contaminants.
KEMAJUAN GENETIK SAPI LOKAL BERDASARKAN SELEKSI DAN PERKAWINAN TERPILIH Lusty Istiqomah
Widyariset Vol 13, No 2 (2010): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.13.2.2010.63-67

Abstract

The objectives of this research were (1) to estimate the breeding value in order to study the genetic progress of local beef cattle, and (2) to study the effectiveness of breeding method through selection program and assortative mating. The research was conducted at Genetic and Animal Breeding Laboratory, Animal Husbandry Faculty of Bogor Agricultural University from January to March 2006. Data of birth weight from assortative mating between 5 sires and 50 dams have been collected during 2000 to 2005. The data were analyzed using B-Gen program. Selection method that was practiced in this population showed in line with selection method using breeding value criteria. An assessment of genetic progress indicated positive both in annual mean direct genetic trends and annual maternaltrends for average birth weight. The average of inbreeding value from five generation was low (0.01%). It was concluded that genetic improvement through selection of growth traits and positive assortative mating was possible.
BEEF CATTLE BUSINESS RESOURCES AND LAND TENURE: CATTLE BUSINESS PERFORMANCE INCOME FARMERS CONTRIBUTION Rahmi Wahyuni
Widyariset Vol 18, No 1 (2015): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.18.1.2015.79-90

Abstract

Integrated farming is an alternative effort in order to improve business efficiency in beef cattle farming land.The extent to which it can flourish and contribute to is an exciting thing to assess. Research conducted at the centerof beef cattle in Nagari Sungai Kamuyang, Subdistrict Luak, District Lima Puluh Kota, West Sumatra in 2013.The aim is to analyze the relationship mastery of agricultural resources (land) with cattle control, and its impacton business performance of livestock and household income structure of farmers, survey collection methods, datacollection using structured questionnaires and in-depth interviews. Determination of the respondents conducted by purposive sampling involved 30 farmers. Data were analyzed by descriptive quantitative and qualitative and presented in tabular form as well as a SWOT analysis. The results showed: (a) The relationship between the area of agricultural land ownership by the number of cattle is that the more the number of farms ownership increasing numbers of livestock . Land tenure of >0.5 ha has five cattles. (b) Contribution of the cattle business in research area with agricultural land <0.5 ha is <35 % of total farm household income. (c) Contribution of the cattle business with land holdings >0.5 ha is >40% of total farm household income. Profits per three cows Rp2,786,500.00/periode. R/C = 1.129. This means cattle business is well worth the effort. B/C = 0.129 profits earned is 12.9% of the costs incurred. (d) Priority beef cattle business development strategy is cooperation with other agencies in thedevelopment of feed by utilizing the available land, the provision of knowledge and technology to farmers in order to develop the cattle business, collaboration with agencies planter capital.

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