78 10 2068 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource M. Abdulhamid, Bala; Mathematical Sciences Programme, Abubakar Tafawa Balewa University, Bauchi, Nigeria Haruna, Yusuf; Mathematical Sciences Programme, Abubakar Tafawa Balewa University, Bauchi, Nigeria M. Muhammad, Bamaina; Petroleum Product Pricing Regulation Agency, NNPC\PPMC, Depot Kano, Nigeria Date A point or period of time associated with an event in the lifecycle of the resource 2012-12-01 Description An account of the resource Abstract - The objective of the paper is to find conditions for the oscillation of the food-limited equation. We established conditions for the oscillation of all solutions of the generalized foodlimited equation by transforming the equation to a non-linear delay differential equation and then to a scalar delay differential equation and using the property of the scalar delay differential equation to obtain our result. Similarly we establish conditions for the oscillation of all solutions of the foodlimited equation with several delays by transforming the equation to a scalar differential equation to obtain the oscillatory property. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/AIJST/article/view/132 10.13170/aijst.1.3.132 Language A language of the resource eng Publisher An entity responsible for making the resource available Graduate School of Syiah Kuala University Relation A related resource http://jurnal.unsyiah.ac.id/AIJST/article/view/132/125 Source A related resource from which the described resource is derived Aceh International Journal of Science and Technology; Vol 1, No 3: September - December 2012 2088-9860 Title A name given to the resource On the Oscillation of the Generalized Food-Limited Equations with Delay Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource B, Vishnu; Department of Land & Water Res. Eng., Kerala Agri. Univ., KCAET, Tavanur, India P, Syamala; Department of Civil Engineering, National Institute of Technology Calicut, Kozhikkode, India Date A point or period of time associated with an event in the lifecycle of the resource 2012-04-01 Description An account of the resource Abstract – Design, operation and planning of water resources, irrigation and water supply systems require estimation of stream flow. A grey system or stochastic approach is required for dealing with the hydrological complexities of mid and long-term stream flow prediction. Generally relatively long period data series of stream flow records is required for the prediction using stochastic methods. In developing countries like India, availability of long period hydrological records is a problem. Grey system theory is applicable in the case of unclear inner relationship, uncertain mechanisms and insufficient information and requires only small samples for parameter estimation. Stream flow records of Bharathapuzha river basin, Kerala, India is subjected to grey analysis. Model parameters were estimated using leastsquares method. Statistical indices for the developed models indicate their ability to predict stream flow in the river under study with reasonable accuracy. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/AIJST/article/view/9 10.13170/aijst.1.1.9 Language A language of the resource eng Publisher An entity responsible for making the resource available Graduate School of Syiah Kuala University Relation A related resource http://jurnal.unsyiah.ac.id/AIJST/article/view/9/9 Source A related resource from which the described resource is derived Aceh International Journal of Science and Technology; Vol 1, No 1: January - April 2012 2088-9860 Title A name given to the resource Grey Model for Stream Flow Prediction Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Asraf, Amirul; School of Biological Sciences, Universiti Sains Malaysia, Penang, Malaysia A. Muchlisin, Zainal; Department of Aquaculture, Syiah Kuala University, Banda Aceh 23111, Indonesia N. Siti-Azizah, Mohd; Centre for Marine and Coastal Studies Universiti Sains Malaysia, Penang, Malaysia Date A point or period of time associated with an event in the lifecycle of the resource 2014-01-17 Description An account of the resource  Abstract –The objective of the present study was to determine the best concentration of urea solution and rinsing time to remove adhesiveness of African catfish eggs. Four different concentrations of rinse solution were used in this experiment comprising of 2 g, 4 g, 6 g and 8 g of urea diluted in 4 g NaCl/L of water producing a concentration of 0.486 mM, 0.973 mM, 1.458 mM, and 1.946 mM of urea concentration respectively, while 4 g NaCl/L of water without urea were used as control. The fish eggs were rinsed with the solutions at different durations namely; 1, 5 and 10 minutes. Each rinsing solution concentration and rinsing time were conducted in three replicates. The fertilization and hatching rates increased and peaked from the control (0 mM of urea) to 0.466 mN urea and decreased when concentration of urea was increased to 0.973 mM urea and 1.458 mM urea, then increased again at 1.946 mM urea, but these values were lower than at 0.486 mM urea. Thus, the best concentration for fertilization and hatching rates were 0.486 urea of urea. However 0.973 mM of urea was optimum in reducing clumping of eggs. Keywords: Clumping; Fertilization; Hatching; Brood fish Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/AIJST/article/view/1009 10.13170/aijst.2.3.1009 Language A language of the resource eng Publisher An entity responsible for making the resource available Graduate School of Syiah Kuala University Relation A related resource http://jurnal.unsyiah.ac.id/AIJST/article/view/1009/953 Source A related resource from which the described resource is derived Aceh International Journal of Science and Technology; Vol 2, No 3: September - December 2013 2088-9860 Title A name given to the resource Removal of Eggs Adhesiveness of African catfish (Clarias gariepinus) at Different Concentrations of Urea Solution Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Myek, Bako O. Idris, Sulaiman F. Iyun, Johnson Date A point or period of time associated with an event in the lifecycle of the resource 2014-01-01 Description An account of the resource Abstract - The kinetics of the oxidation of naphthol green B (NGB3-) by Cr2O7 2- has been studied in aqueous hydrochloric acid medium at an ionic strength, I = 0.50 mol dm-3 (NaCl), H+ =1.0  10-4 mol dm-3 (HCl) and T = 25  1C. The redox reaction displayed a stoichiometry of 1:1 and obeys the rate law: -dNGB3-/dt = k2NGB3-]Cr2O7 2- . The second order rate constant increases with increase in acid concentration and in the ionic strength of reaction medium. The rates of reaction displayed a positive salt effect. Addition of acrylonitrile to a partially reacted mixture in the presence of excess methanol did not lead to gel formation. Added cations and anions inhibited the naphthol green B - Cr2O7 2- reaction. Results of the Michaelis – Menten plot gave no evidence of intermediate complex formation during the course of the reaction. Based on the results obtained, the reaction is believed to proceed through the outersphere mechanistic pathway.Keywords: Intermediate; Redox; Pseudo-octahedral; Michaelis – Menton; Outersphere Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/AIJST/article/view/1303 10.13170/aijst.3.1.1303 Language A language of the resource eng Publisher An entity responsible for making the resource available Graduate School of Syiah Kuala University Relation A related resource http://jurnal.unsyiah.ac.id/AIJST/article/view/1303/1190 Source A related resource from which the described resource is derived Aceh International Journal of Science and Technology; Vol 3, No 1: January - April 2014 2088-9860 Title A name given to the resource Preliminary Study on the Kinetics and Mechanism of the Oxidation of Naphthol Green B by Dichromate Ion in Aqueous Hydrochloric Acid Medium Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Ibrahim, Maccido; Department of Biology, Shehu Shagari College of Education, Sokoto Shehu, Kasimu; Department of Biological Sciences, Usmanu Danfodiyo University, Sokoto Date A point or period of time associated with an event in the lifecycle of the resource 2014-11-15 Description An account of the resource In this study the fungi associated with cassava growing fields in Sokoto were isolated and identified using soil dilution technique. A total of 215 fungal colonies from 9 fungal species were isolated from soil samples of different cassava fields between the month of June and August, 2012. It was observed that soil samples from Lambara recorded the highest number (64) of fungal species followed by Damba and the least number (44) of fungal species was observed in Wamakko.The fungi isolated were Alternaria species, Aspergillus niger, Aspergillus fumigatus, Cylindrocarpon lichenicola, Fusarium oxysporum, Geotrichum candidum, Mucor hiemalis, Rhizopus orgyzae and Scopulariopsis candida.The highest percentage frequency of occurrence was observed in Aspergillus niger (39.5%) seconded by Fusarium oxysporum (18.2%) and the least was seen in Rhizopus oryzae ( 2.3%). The pathogenicity test indicated that all the fungal isolates were pathogenic on cassava tubers.The fungus M. hiemalis is the most pathogenic followed by F. oxysporum and the least was recorded by R. oryzae. Therefore, it would be concluded that there is relationship between soilborne fungi and incidence of postharvest rots of cassava tubers. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/AIJST/article/view/2008 10.13170/aijst.3.3.2008 Language A language of the resource eng Publisher An entity responsible for making the resource available Graduate School of Syiah Kuala University Relation A related resource http://jurnal.unsyiah.ac.id/AIJST/article/view/2008/pdf_6 Source A related resource from which the described resource is derived Aceh International Journal of Science and Technology; Vol 3, No 3: September - December 2014 2088-9860 Subject The topic of the resource Soilborne mycoflora; Cassava fields; Rots; Cassava tubers Title A name given to the resource Relationship of Soilborne Mycoflora of Cassava Growing Fields to Incidence of Postharvest Rots of Cassava Tubers in Sokoto, Nigeria Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Lukitaningsih, Endang Bahi, Muhammad Holzgrabe, Ulrike Date A point or period of time associated with an event in the lifecycle of the resource 2014-01-02 Description An account of the resource Abstract - In Indonesia, Bengkoang (Phacyrhizus erosus) have been used as one of cosmetics especially as sun screening and skin whitening materials. Six active compounds in Bengkoang with antioxidant and skin whitening activities have been isolated, namely daidzein, daidzin, genistin, (8,9)-furanyl-pterocarpan-3-ol, 4-(2-(furane-2-yl)ethyl)-2-methyl-2,5-dihydro-furane-3-carbaldehyde and 2-butoxy-2,5-bis(hydroxymethyl)-tetrahydrofurane-3,4-diol. According to literatures, the type of their tyrosinase inhibitory activity has not yet reported. The determination of whitening activity of each compound was evaluated by the evaluation of Lineweaver-Burk plot. The result showed that five compounds had competitive inhibitory activity and 8,9-furanyl-pterocarpan-3-ol showed a non-competitive inhibition. Keywords: Pachyrhizus erosus, tyrosinase, competitive inhibition and non-competitive inhibition Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/AIJST/article/view/1063 10.13170/aijst.2.3.1063 Language A language of the resource eng Publisher An entity responsible for making the resource available Graduate School of Syiah Kuala University Relation A related resource http://jurnal.unsyiah.ac.id/AIJST/article/view/1063/999 Source A related resource from which the described resource is derived Aceh International Journal of Science and Technology; Vol 2, No 3: September - December 2013 2088-9860 Title A name given to the resource Tyrosinase Inhibition Type of Isolated Compounds Obtained from Pachyrhizus erosus Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Madilen, Nthapeleng M. Adeleke, Abraham A. Mendonidis, Peter Date A point or period of time associated with an event in the lifecycle of the resource 2015-08-17 Description An account of the resource An investigation was carried out to determine the effects of collector concentration on the grade and recovery in the flotation of middle group 1-3 Platinum Group Metal (PGM) ore mixture. The ore mixture pulp at a relative density of 1.29 was subjected to “bead milling”  test, particle size distribution analysis  and the 55% passing 75 µm was froth floated at 180, 200 and 220 g/t dosages of sodium isobutyl xanthate (SIBX) and 30 and 80 g/t of Senfroth and Sendep 30D frother and depressant, respectively. The results obtained indicated the predominance of the <38 µm PGM values in the ore and confirmed the need for tertiary milling for better liberation of the PGMs. The grade of the PGM concentrate obtained when dosing at 200 g/t of sodium isobutyl xanthate was highest at 94 g/t and gave the lowest recovery of 53%. The 180 g/t SIBX dosage resulted in highest PGM recovery of 70% and lowest grade of 84 g/t, while dosing at 220 g/t SIBX gave average PGM grades of 90 g/t  and  recoveries of 60%. The results obtained thus showed that that an SIBX dosage of 180 g/t SIBX would be appropriate when higher recoveries are targeted, while 200 g/t dosage will yield higher grades Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/AIJST/article/view/2487 10.13170/aijst.4.2.2487 Language A language of the resource eng Publisher An entity responsible for making the resource available Graduate School of Syiah Kuala University Relation A related resource http://jurnal.unsyiah.ac.id/AIJST/article/view/2487/3.pdf Rights Information about rights held in and over the resource Copyright (c) 2015 Aceh International Journal of Science and Technology Source A related resource from which the described resource is derived Aceh International Journal of Science and Technology; Vol 4, No 2 (2015): May - August 2015 2088-9860 2503-2348 Title A name given to the resource Effects of Sodium Iso-butyl Xanthate Dosage on The Froth Flotation of Bead Milled Middle Group 1-3 PGM Ore Blend Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Subject The topic of the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Basri, Hairul; Faculty of Agriculture, Syiah Kuala University, Banda Aceh, Indonesia; Faculty of Science and Math, Syiah Kuala D, Dahlan; Faculty of Science and Math, Syiah Kuala University Nurochman, Deden; Ministry of Forestry, Republic of Indonesia, Jakarta, Indoneaia. Date A point or period of time associated with an event in the lifecycle of the resource 2012-12-01 Description An account of the resource Abstract – Development of industrial forest plantation currently has a primary function to produce timber for the fulfillment of the pulp and paper industry raw matter. In times of growing trees plantations have the ability to absorb carbon dioxide gases (CO2) in the atmosphere throught the process of photosynthesis which builds biomass stands and produce oxygen gases (O2). The potency of forest stands biomass and build a model standing stock biomass using the Normalized Difference Vegetation Index (NDVI) value from Satellite Imagery was investigated. Types of crops grown in Forest Product Utilization Permit for Cultivated Forest Area in PT.Acehnusa Indrapuri are A.mangium and E.urophylla plantations with area approximately 15,500.59 ha. The results showed the biomass content at the lowest value 16.81 tons per hectare with the NDVI Value of 0.342 whereas the highest content of biomass amounted to 145.750 tons per hectare in NDVI value 0.813. The content of plant biomass of forest stands can be expected by NDVI values using the model equation Y = 250.32 X 2 -15.221X- 3.3623 with R2 of 97.27% Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/AIJST/article/view/135 10.13170/aijst.1.3.135 Language A language of the resource eng Publisher An entity responsible for making the resource available Graduate School of Syiah Kuala University Relation A related resource http://jurnal.unsyiah.ac.id/AIJST/article/view/135/128 Source A related resource from which the described resource is derived Aceh International Journal of Science and Technology; Vol 1, No 3: September - December 2012 2088-9860 Title A name given to the resource Potential Biomass Evaluation on Forest Plant Stands In Aceh Province, Indonesia: A Case Study of Forest Product Utilization Permit for Cultivated Forest Area by PT. Acehnusa Indrapuri Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Yuan, Li-Huan; Life Sciences, Shanxi Normal University, Linfen 041004, China Hu, Qing-Ping; College of Life Sciences, Shanxi Normal University, Linfen 041004, China Xu, Jian-Guo; College of Food Sciences, Shanxi Normal University, Linfen 041004, China Date A point or period of time associated with an event in the lifecycle of the resource 2015-03-12 Description An account of the resource The antibacterial mechanism of the ethyl acetate extracts from naked oat against Bacillus subtilis were studied in this paper based on assays such as cell wall alkaline phosphatase (AKP), permeability and integrity of cell membrane as well as electron microscopy observations. The results showed that the ethyl acetate extracts had significant effects on AKP, permeability and integrity of cell membrane. We concluded that the mechanism of action of the ethyl acetate extracts against B. subtilis might be described as:Acting on cell wall and membrane, resulting in disruption, cell lysis, and the leakage of intracellular constituents according to the results of AKP, the leakage of electrolytes, the losses of contents (proteins, reducing sugars and 260 nm absorbing materials) assays and electron microscopy observations. Overall, the results clearly indicated that the ethyl acetate extracts from naked oat was potential to control the contamination of foods caused by bacterial diseases Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/AIJST/article/view/2228 10.13170/aijst.4.1.2228 Language A language of the resource eng Publisher An entity responsible for making the resource available Graduate School of Syiah Kuala University Relation A related resource http://jurnal.unsyiah.ac.id/AIJST/article/view/2228/pdf_12 Rights Information about rights held in and over the resource Copyright (c) 2015 Aceh International Journal of Science and Technology Source A related resource from which the described resource is derived Aceh International Journal of Science and Technology; Vol 4, No 1 (2015): January - April 2015 2088-9860 Subject The topic of the resource Naked oat; antibacterial mechanism; extracts; Bacillus subtilis Title A name given to the resource Antibacterial Mechanism of The Ehyl Acetate Extracts From Naked Oat Again Bacillus subtilis Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource S, Sutrisno; Research Center of Material Science, University of Indonesia Soegijono, Bambang; Research Center of Material Science, University of Indonesia Date A point or period of time associated with an event in the lifecycle of the resource 2012-08-01 Description An account of the resource Abstract - The property such as microhardness of boridelayer formed on S45C iron was investigated. Boronizing was carried out in a solid medium consisting of nano size powders of 50% B4C as a donor, 45% SiC as a diluent, and 5% KBF4 as an activator treated at the temperature of 10000C for 8 hours. The phases that were formed on the substrate was found as Fe2B and FeB layer that had smooth and flate shape morphology. The hardness of boride layer on S45C was over 2000 HV, while the hardness of untreated S45C iron was about 196,39 HV. Depending on process time and temperature, the depth of boride layer ranges from 25 to 55 μm, leading to a diffusion controlled process.Keywords : Boronization, hard layer, heat treatment, B4C.KBF4.SiC powder, low carbon steel. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/AIJST/article/view/126 10.13170/aijst.1.2.126 Language A language of the resource eng Publisher An entity responsible for making the resource available Graduate School of Syiah Kuala University Relation A related resource http://jurnal.unsyiah.ac.id/AIJST/article/view/126/119 Source A related resource from which the described resource is derived Aceh International Journal of Science and Technology; Vol 1, No 2: May - August 2012 2088-9860 Title A name given to the resource The Hardness of Boride Layer on the S45C Iron (A preliminary study on surface hardening of ferrous material) Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article