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Search Results: 1 - 10 of 847 matches for " TIEN WIATI SURJONO "
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The Effects of T-2 Toxin on Preimplantion Embryos and Fetuses of Swiss Webster Mice
HAYATI Journal of Biosciences , 2007,
Abstract: T-2 toxin is a toxic and teratogenic mycotoxin produced by Fusarium tricintum which may contaminate cereal, seed, and food. The aim of this research is to find out the effects of T-2 Toxin on preimplantion embryos and fetuses of Swiss Webster mice. Pregnant female of Swiss Webster mice on 0 or 2 day of gestation was injected intraperitoneally with T-2 toxin at doses 0.05 or 0.10 mg/kg body weight (bw) and the dam was observed at 3.5 and 18 days of gestation. At 0 day of gestation, embryos were arrested at one to eight cell and uncompacted morulae stages (P < 0.01) compared to control, in both 0.05 and 0.10 mg/kg bw doses. The cell numbers of late blastocyst at all treated groups were decreased significantly compared to control. At 2 day of gestation, most of embryos were arrested on compacted morulae stage at dose 0.10 mg/kg bw (P < 0.01), the late blastocyst and its cell number were dose-dependently decreased. The live fetuses decreased significantly at all dose of T-2 toxin. No external malformation occurred in the fetuses. Results showed that T-2 toxin given at preimplantation stages inhibited development of preimplantation embryos as indicated by decreased number of live fetuses. Therefore, it was grouped as embryotoxic agent but those dosages did not cause malformation of the external appearance of Swiss Webster mice fetuses.
Methoxyacetic Acid Induced Apoptosis on the Forelimb Bud of Swiss Webster Mice
HAYATI Journal of Biosciences , 2011,
Abstract: Methoxyacetic acid (MAA) causes digit malformations of mice when it was given orally on gestation day 11. Previous observation showed that malformation was caused by cell death. The aims of the research were to determine the types of cell death, first time of cell death and their distribution pattern on forelimb bud of Swiss Webster (SW) mice. Ten mM/kg of body weight (bw) of MAA were administered by gavage to SW mice on gestation day 11. Forelimb bud of mouse embryos of gestation day 11 + 0, 1, 2, 3, 4, 5 hours were processed with paraffin method and were made plantar section. Cell death at plantar section were colored with 4,6-diamino-2-phenylindole hydrochloride (DAPI) and hematoxylin. The result showed, that digit malformations initially by apoptosis mesenchymal cell at proximal of axial mesoderm in around of primary axial artery has done one hour after treatment. Apoptosis at the axial area, the site formation of digital ray III distributed to preaxial area where digits I and II are formed, and to the site formation of digits IV and V. The number of mesenchyme cell of digital rays II, III, and V was decrease by the increasing of gestation day, while digital ray was not formed and finally digits I, II, III, and V were missing. The reduction number of cell of digital ray IV were delayed time to be formed and its small size. Thereby it can be concluded, that MAA induced digit malformations of SW mice started by apoptosis which is occurrence has been increase in area of digital ray formation, so that digital ray can not be formed, but when formed it will not developed.
Facies and Reservoir Characteristics of the Ngrayong Sandstone in the Rembang Area, Northeast Java (Indonesia)  [PDF]
San Yee Khaing, Sugeng Sapto Surjono, Jarot Setyowiyoto, Yuichi Sugai
Open Journal of Geology (OJG) , 2017, DOI: 10.4236/ojg.2017.75042
Abstract: The Rembang area is a well-known prospective region for oil and gas exploration in Northeast Java, Indonesia. In this study, the reservoir characteristics of the Ngrayong Sandstone were investigated based on outcrops in the Rembang area. Petrological, mineralogical, petrophysical and sedimentological facies analyses were conducted. These sandstones are grain- and matrix-supported, and composed of very fine to medium, sub-angular to poorly-rounded, moderately- to very well-sorted sand grains. These sandstones are mainly composed of quartz, orthoclase, plagioclase, and micas with minor amounts of clay minerals, and therefore are predominantly classified as sub-lithic arenite and sub-felds pathicarenite. Petrographic observations and grain size data indicate that these sandstones are texturally quite mature, based on their good-sorting and the occurrence of minor amounts of matrix clays. Common clays in the samples include illite, smectite, kaolinite, and gibbsite. The porosity of the Ngrayong sandstones ranges from 25.97% to 40.21%, and the permeability ranges from 94.6 to 3385 millidarcies. Thus, these sandstones exhibit well to excellent reservoir qualities. Eight lithofacies were identified from five measured stratigraphic sections, and are dominated by foreshore and tide-dominated shoreface facies. The Ngrayong sequence shows a single transgressive-regressive cycle. Cross-bedded sandstone and massive sandstone are identified as the most promising potential reservoir facies based on their characteristics in outcrops, their lateral and vertical distributions, their sedimentological characteristics and their petrophysical properties.
ANALISIS EFISIENSI TEKNIS USAHATANI PADI SAWAH APLIKASI PERTANIAN ORGANIK ( Studi Kasus Di Desa Sumber Ngepoh, Kecamatan Lawang ) Kabupaten Malang MT 2009 – 2010
Tien Tien
Jurnal Biologi el-Hayah , 2011,
Abstract: The application of organic farming on rice farming in Indonesia is still new to know. The farming interested if efficiency economics. The meaning efficiency economics if the technical efficiency. This research aimed to evaluate the performance of organic rice farming systems, focusing on: (1) identifying the range of application of organic farming on rice farming, (2) analyzing the productivity and income from applying organic farming, and (3) analyzing the technical efficiency of applying organic farming and identifying factors that influence it.The study was conducted in Malang Regency with take sample Sumber Ngepoh village, Lawang, Malang. This village is purposively taken because this is only a village in East Java which has obtained a certificate as a producer of organic rice from Organic Certification Agency. Furthermore, farmers did not interested application of organic farming. The sample of farmers 120 respondents selected by using non-proportionate stratified random sampling among those applying organic rice farming. The data are analThe results at the study stage show that there was diversity between implementing organic and agricultural organic farming system. This diversity reached only 8,33 percent application of organic rice farming of the total land area, while the rest was still in the transitional stage of applying organic system. The application of organic rice farming must independently be able to increase production and income of the farmer.Judging from the level of technical efficiency, the application of organic rice farming is generally quite high, above the value of TE (technical efficiency) 0.8, while applying an independent organic farming has higher technical efficiency than others. Determinant of technical efficiency is the practice of Sekolah Lapang or Field School and the independence of farmers in affording resources locally.
How to Promote the Service Quality of the Public Sector by Award Mechanism?  [PDF]
Yun-Hsiang Tien
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.37B007
Abstract: The quality of service in the public sector has been a popular issue over the past two decades. All over the world, many governments and international organizations have set up some awards to evaluate the service performance of the public sector and encourage public organizations to devote themselves to improving their service quality. In Australia, the annual National Awards were established in 1986 and are run by the Department of Regional Australia, Regional Development and Local Government. This paper takes the National Awards for Local Government as an example to analyze important characteristics of this award, such as award themes, selection criteria, evaluation process, etc. At the end of this paper, some important findings will be discussed and some directions will be proposed for further studies on this topic.
Fitting a Probability Distribution to Extreme Precipitation for a Limited Mountain Area in Vietnam  [PDF]
Nguyen Tien Thanh
Journal of Geoscience and Environment Protection (GEP) , 2017, DOI: 10.4236/gep.2017.55007
Abstract: In this paper, an analysis of adapted 20 extreme precipitation indices is calculated for a limited mountain area in southern Vietnam. The daily precipitation data from four stations in the period of more than 30 years are selected. The statistical characteristics of maximum, minimum, mean, standard deviation, skewness, and kurtoris for each index are also analysed. A variety of distributions such as Normal, Lognormal, Beta, Gamma, Exponential, Loglogistic, and Johnson is used to find the best fit probability distribution for this area on the basic of the highest score. The scores are estimated based on the ranking of statistical goodness of fit test. The goodness of fit tests is the Anderson-Darling and Shapiro-Wilks tests. The best fit distribution for each index of extreme precipitation at each station is found out. Results revealed that the Johnson distribution is the best fit distribution to the data of very heavy precipitation days greater than 50 mm. Over a limited mountain area, it is difficult to fit a probability distribution to the precipitation fraction due to extremely wet days, number of extremely wet days, and number of extremely wet days when precipitation greater than 99 percentage. The lognormal, Johnson, and Loglogistic distribution are the best choices to fit most of the extreme precipitation indices over this area.
The Religious Practices of Vietnamese Catholic Youth: The Case of the Diocese of Xuan Loc  [PDF]
Le Minh Tien
Advances in Applied Sociology (AASoci) , 2017, DOI: 10.4236/aasoci.2017.78017
Abstract: Every religion includes a whole series of beliefs and practices and we should start by concentrating our attention on religious practices to understand a religion. This paper intended to clarify the religious practices of Vietnamese Catholic Youth. Based on the theory of Glock and Stark and by using survey method, descriptive statistics, this is the first study to demonstrate the religious practices of youths in a diocese of Vietnam. This issue considered as an interesting research topic in the context of Vietnamese research because it explores youths lives from a different perspective by focusing on the micro level of analysis. The respondents in this study were total of 388 young adults between 18 and 30 years of ages from 24 parishes who were randomly selected through Probability Proportional to size sampling method. The findings of the research indicate that the ritualistic dimension of religiosity among Vietnamese Catholic youth is still so high in the context of change in Vietnam.
Genetic Parameter Estimation on Upland Rice Agronomic Characters in Ultisols through Diallel Analysis
HAYATI Journal of Biosciences , 2005,
Abstract: An estimate of genetic parameters was made to study the types of gene action in rice. A half diallel analysis was performed among seven rice genotypes with different genetical backgrounds, i.e. Situgintung, Jatiluhur, Gajah Mungkur, B8503E-TB-9-0-3, Krowal, CT6510-24-1-3, IR 64, and its 21 progenies. This experimental material was arranged in a complete block design with four replications. All observed characters had highly significant genotypic differences. The genetic parameters were estimated following Hayman method. The simple model of additive-dominance was sufficiently detected through the absence of nonalellic interaction. Productive tillers exhibited partial dominance. Heritability in a narrow sense was high. There was a positive correlation between grain yield and the number of productive tillers.
Sugimin Pranoto,Syamsul Ma'arif,Surjono H. Sutjahjo,Hermanto Siregar
Jurnal Manajemen & Agribisnis , 2006,
Abstract: The development implemented throughoutall this time still reveals an unbalanced development between the urban andrural area. This has occured due to the development policy that is lessfavorable toward the development of rural areas causing various problems of imbalances (inequalities) ofwelfares among the regions. In addition, the failures of development in therural areas have caused backwash effect, and the domination of capital marketand welfares have been mostly possesed by the urban dwellers. The conditionof rural communities have become moredeteriorated, poorer, and the level of unemployment becoming higher. Thedevelopment of agropolitan (agro-based area development) is expected to providepositive impact in the effort to empowering the rural community, reducingpoverty, and supporting rural economic activities that are environmentallyoriented. This study aims to develop a sustainable rural policy through theagropolitan development model, based on regional analysis, insitutional analysis(ISM), and dynamic system. The agropolitan development is relatively able toimprove the income per capita of the rural population. Dynamic system analysisshowed that the agropolitan model follows the basic pattern of Archetype Limitto Success, with production growth as a leverage factor of the dynamic model.Thus, the policy orientation to improve people's welfare is a policy that ableto improve the quantity and quality of products in a sustainable manner. Theresult of analysis of institutional aspect showed key factors that supportsuccessful agropolitan development which are skilled human resources, businesspartnership and marketing, and the performance of institutions that provideinput. The major constraints faced are small size land ownership and productiveagriculture land conversion, extension services agencies that are not yeteffective, low quality of human resources, business behavior change not easy,and low support of capital institution.
The possibility of palm oil mill effluent for biogas production
Biodiversitas , 2008,
Abstract: The world currently obtains its energy from the fossil fuels such as oil, natural gas and coal. However, the international crisis in the Middle East, rapid depletion of fossil fuel reserves as well as climate change have driven the world towards renewable energy sources which are abundant, untapped and environmentally friendly. Indonesia has abundant biomass resources generated from the agricultural industry particularly the large commodity, palm oil (Elaeis guiinensis Jacq.). The aims of the research were to (i) characterize palm oil mill effluent which will be used as source of biogas production, (ii) know the biotic and abiotic factors which effect POME substrate for biogas production by anaerobic digestion in bulk system. The results show that POME sludge generated from PT Pinago Utama mill is viscous, brown or grey and has an average total solid (TS) content of, 26.5-45.4, BOD is 23.5-29.3, COD is 49.0-63.6 and SS is 17.1-35.9 g/L, respectively. This substrate is a potential source of environmental pollutants. The biotic factors were kind and concentration of the inoculums, i.e. seed sludge of anaerobic lagoon II and 20% (w/v) respectively. Both physical and chemical factors such as pre-treated POME pH, pH neutralizer matter Ca (OH)2, temperature ≥40oC, agitation effect to increase biogas production, but in both coagulant concentration, FeCl2 were not.
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