bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigate Grade 7 Students’ Knowledge Construction About Diffusion and Osmosis
Authors: Pondee Phattaraporn , Yuenyong Chokchai 
Published: October 2019

Abstract
This research aimed to investigate the students’ constructing scientific knowledge about diffusion and osmosis with analogy approach. The subjects were selected by purposive sampling method including 30 Grade 7 students in Yasothonpittayakom School, Muang District, Yasothon Province, Thailand, in second semester of 2014 academic year. Gathering data by semi-structured interviews and open-ended questionnaire. The data analyses were qualitative analytical techniques. The results of study revealed that almost students held the concept of dissolve to mention diffusion and held the concept of the particulate and the movement of particulate. Their explanations of diffusion and osmosis mentioned various phenomena.
Exploration of Students’ Metacognitive Experience in Physics Classroom
Authors: Pimvichai Jirutthitikan , Sanium Soonthareeya , Buaraphan Khajornsak 
Published: October 2019

Abstract
Metacognition has been accepted as one desirable attribute for learners in the 21st century. There are a number of researech studies related to how to promote metacognition in school students. This study aimed to explore students’ metacognitive expereince in one physics classroom in the equilibrium of moments topic. The research participants were 35 Grade 9 students from one secondary school located at Nakhon Ratchasima province in the northeastern region of Thailand. After learning physics, the participating students were asked to respond to the Metacognitive Experience Questionnaire (MEQ). The studnets’ metacognitive experience was analyzed for mean and standard deviation. The finding revealed that the students derived the neutral to frequently levels of expereience in metacotnition in the physics classroom. This finding suggests to add more metacognitive expereience for Grade 9 students.
The Participatory Characterization Based on STEM Education in the Restricted Area for Fishing at Tha Song Korn Temple in Khon Kaen Province
Authors: Sarakran Prakrupariyat 
Published: October 2019

Abstract
This study aims to investigate the participatory characterization based on STEM Education in the restricted area for fishing in front of the temple on the banks of Tha Song Korn River. The qualitative research methodology was used in this study. Data were collected by using field study methods along with in-depth interview and observation. Data were analyzed by using documentary analysis by using triangulation techniques. The results showed that the participatory characterization in the conservation area for fishing in front of the temple on the banks of Tha Song Korn River developed due to the collaboration of local government agencies, community, and villagers. It was found that the temple helped improve the water pollution in front of the temple by promoting the collaboration of all the stakeholders based on STEM Education in four steps; planning, implementation, taking benefits, and evaluation. The abbots and monks transferred the knowledge of water conservation to villagers along with the assistance of government agencies and the governors in the community, the surrounding area can be developed to be tourist attraction of the public. This holistic method derived from combining knowledge of science, mathematics, technology and engineering design based on STEM education leads to sustain management in the community.
Levels of Discourse in Mathematics Classroom using Lesson Study and Open Approach
Authors: Raethong Korkiat , Thinwiangthong S 
Published: October 2019

Abstract
Start your abstract here… This research aimed to analyze levels of discourse in mathematics classroom using lesson study and open approach. It use of qualitative research methodology by focusing on protocol analysis and analytical description. Target group was a mathematics teacher and 30 seventh grade students in 2nd semester of school year 2017 at Kaeng-Khro Wittaya School, Chaiyaphum. The research instruments were consisted of lesson plan, field note, students’ writing work, video recorder and camera recorder. The collected data was analyzed by 4 steps of open approach [7]. and levels of discourse [19]. Research result found that levels of discourse in mathematics classroom represented as following details: 1) Posing open-ended problem, it was found 4 levels of discourse. In early class of learning unit, it was found the level of 0-1 which the teacher had posed open-ended problem before explained the problem with asking some short question to the students for checking their understanding whereas in latter class of learning unit, it was found the level of 2-3 which the teacher had posed open-ended problem then the student questioned and discussed the problem together; 2) Students’ self learning, it was discovered 2 levels of discourse which were the level of 2-3. In this discourse, students had questioned and explained about problem solving methods and the teacher had asked the students to clearly describe their problem solving methods together; 3) Whole class discussion and comparison, it was found 2 levels of discourse which were the levels of 2-3. In this discourse, students demonstrated and expressed their own problem solving ideas and other students questioned about their own doubt about each ideas in classroom. The teacher ordered the students’ ideas presentation; 4) Summarization through connecting students’ mathematical ideas emerged in the classroom; it was showed 2 levels of discourse which this learning unit was found the levels of 2-3. In this discourse, teacher encouraged the students to confirm the ideas obtained from listening to reasons of each idea together for discussion and summarization in classroom.
Developing a risk based engineering manager competency standard for oil and gas EPC project in Indonesia
Authors: Tarihoran A D B , Latief Y 
Published: October 2019

Abstract
One key to a project’s success other than the competence of the Project Manager is the competence of the project team personnel. Many problems occur that affecting the success of the Oil and Gas EPC (Engineering, Procurement, and Construction) project such as project schedule delayed, cost overruns, poor quality project performance to a life-threatening safety problem caused by incompetent personnel. The goal of this paper is to develop competency standard for Engineering Manager as one of the key personnel in the EPC project in the oil and gas industry. The competency standard will be developed based on literature study and data from several project execution plans in Indonesia which are validated by experts. Furthermore, risk analysis will be conducted by survey to get major risk that may be faced by an Engineering Manager which affecting time, cost, quality and safety to the project. As a result, risk based standard competency for engineering manager is expected to be produced.
The effect of orange water of lemon (Citrus Limon (L.) Osbeck) as a larvasid of Aedes Aegypti in third instar
Authors: Supenah P , Taiman T , Sas O A 
Published: October 2019

Abstract
The objectives of this study was to determine the effect of lemon juice (Citrus Limon (L.) Osbeck) as larvae of Aedes aegypti in third instar, and to determine the difference in mortality of Aedes aegypti larvae in third instar by giving different concentration of lemon juice (Citrus Limon (L.) Osbeck). This study is belonging to experimental research. The sample in this study was lemon juice with 5 times treatment, namely concentration 5%, 10%, 15%, 20%, and 25% which calculated with the replication formula. According to the finding of the research shows that in the of 10% concentration was effective in killing all Aedes aegypti larvae due to the average larval mortality of 100%, and the 15%, 20%, and 25% concentration of obtained larval mortality results of 100%. The data analyzed by using One Way ANOVA showed that probability/sig value was <0.05, therefore, H0 is rejected, while the result of f count 103,143> f table. 2.866 was obtained. Result f count> f table then H0 is rejected and H1 is accepted. It can be concluded that there was an effect of lemon juice (Citrus Limon (L.) Osbeck) as larvae of Aedes aegypti in third instar.
Characteristics of chicken nuggets with breadfruit substitution
Authors: Hafid H , Nuraini N , Agustina D , Fitrianingsih F , Inderawati I , Ananda S H , Nurhidayati F 
Published: October 2019

Abstract
This study was designed for to produce cheaper chicken nugget with high quality. Also it arranged base on randomized complete with 9 treatments, there are P1 as control 100% tapioca flour, P2 substituted 15% breadfruit flour and 85% tapioca flour, P3 substituted 25% breadfruit flour and 75% tapioca flour, P4 substituted 35% breadfruit flour and tapioca 65%, P5 substituting 50% breadfruit flour and 50% tapioca, P6 substituting 65% breadfruit and 35% tapioca, P7 substituting 75% breadfruit flour and 25% tapioca, P8 substituting 85% breadfruit flour and 15% tapioca and P9 substituting 100% breadfruit flour and 0% tapioca. The result showed significantly nugget with breadfruit 35% (p4) to 100% (p9) has pH lower than without breadfruit flour (p1). cooking loos in nugget with breadfruit flour didn’t same from all treatments. Nugget yield with breadfruit flour as substitution 50% (p5) to 100% (p9) significantly different (p< 0.05) with nugget without breadfruit flour (p1). Nugget yield which reached in this study ranged between 119,2-125. So that, the optimal composition was nugget with substitution 50% breadfruit flour and 50% tapioca with pH 6,05, cooking loos 5% and yield 120%.
Analysis of energy losses in smooth pipes
Authors: Sunaris M L , Muljono Y , Telaumbanua C K , Tallar R Y 
Published: October 2019

AbstractPipe is a closed conduit, usually of circular section, which is used for carrying fluids under pressure. The pipe running partially full, in such a case atmospheric pressure exists inside the pipe, also behaves like an open channel. In general, energy or head losses on pipe consisted of major energy losses due to friction and minor energy losses due to sudden enlargement of pipe, sudden contraction of pipe, bend in pipe, an obstruction in pipe, pipe fittings etc. The main purpose from this research is to analyse energy losses in smooth pipes. There are several steps in analysing such as calculating Reynolds Number (Re) in order to determine flow type, calculating friction factor by using several formulas, and calculating roughness value (k) on smooth pipe with different various scenarios. The experimental study was performed at Hydraulics and Fluid Mechanics Laboratory to process the analysis. The results indicated that the flow type is turbulent when Reynolds Number (Re) is more than 4000. The turbulent flow is characterized by random and irregular movement of fluid particles. The other result also shown that roughness value (k) in smooth pipe is inverse proportion to Reynolds Number.
Digital module and treffinger model: can improve mathematics ability
Authors: Ferdianto F , Alfiani N 
Published: October 2019

Abstract
The aims of this paper are developed teaching materials of digital modules with Treffinger models on the material to construct curved geometry, to find out increase before and after using digital modules. The research model used is ADDIE development research (Analysis, Design, Development, Implementation, and Evaluation). The instruments use in this research is tests of mathematical comprehension ability, interview sheets, and digital module validation sheets. Learning media developed digital modules assisted by 3D software Pageflip Professional 1.7.1. The results obtained from the study were validation by mathematics lecturers and teachers at 84.7% while the results of ICT teacher validation are 85%, with each validation criterion quite valid, which can be tested according to the validator’s suggestion. After being implemented, students’ mathematical understanding ability has increased with a high interpretation of 0.72.
Land use patterns and climate change—a modeled scenario of the Late Bronze Age in Southern Greece
Authors: Knitter Daniel , Günther Gerrit , Hamer Wolfgang Berengar , Keßler Torben , Seguin Joana , Unkel Ingmar , Weiberg Erika , Duttmann Rainer , Nakoinz Oliver 
Published: October 2019

AbstractIn this study, we present a modeling approach that investigates how much cultivable land was required to supply a society and whether societies were in need when environmental conditions deteriorated. The approach is implemented for the North-Eastern Peloponnese and is based upon the location of Late Helladic IIIB (1300–1200 BCE) archaeological sites, an assessment of their sizes, and a proposed diet of the people. Based on these information, the areal requirement of each site is calculated and mapped. The results show that large sites do not have sufficient space in their surroundings in order to supply themselves with the required food resources and thus they depended on supplies from the hinterland. Dry climatic conditions aggravate the situation. This indicates that potential societal crisis are less a factor of changing environmental conditions or a shortage of arable land but primarily caused by socio-economic factors.
Chemical and Microbiological Characteristics of Fermented Cheese Whey Beverages With Soymilk Powder Addition
Authors: Chairunnisa H , Balia R L , Wulandari Eka 
Published: October 2019

Abstract
This research was aimed to determine the chemical and microbiological characteristics of fermented cheese whey beverages which was made with soymilk powder addition. The research was done experimentally using Completely Randomized Design (CRD), three treatments and replicated six times. Parameters taken were total plate count, pH, lactic acid content, lactose content and viscosity. The impact of the treatments significance was determined by ANOVA and the difference between treatments was determined by Tukey test. The best soymilk powder addition that produced desirable fermented cheese whey beverages properties was 12.5 % with properties as follows : the total plate count of 175 x 109 colonies/g and pH of 3; Lactic acid content of 0.675 %; Lactose content of 7.2623 %; and Viscosity of 24 823.33 cP.
A Study of Bread Yeast and Sucrose to the Successful Process of Cocoa Beans Fermentation
Authors: Sahannur S T 
Published: October 2019

Abstract
This research aims to know the effect of the concentration of sucrose and bread yeast to the successful process of cocoa beans fermentation. The research was conducted in the form of Completely Random Design of Factorial Pattern, two Factors. The first factor is sucrose consisted of 0% (control), 1%, 2%, and 3% sucrose. The second factor was the bread yeast consists of two (2) concentrations: 0,5% and 1 %, and each repeated twice to obtain 16 experimental units. The observed parameters were fermentation index, slaty beans and the pH of cocoa beans. The result of the research showed that there was an interaction between sucrose and bread yeast in the successful process of cocoa beans fermentation in small scale. The treatment without sucrose and adding 1% of bread yeast had a better effect to the fermentations index value of 1,72; salty beans were 1,56 and pH beans was 5,30.
1-Methylcyclopropene as an Effective Ethylene Inhibitor to Extend Musa acuminata Colla ‘Muli’ Postharvest Quality
Authors: Mubarok S , Suwali N , Suminar E , Kamaluddin NN 
Published: October 2019

Abstract

Musa acuminata Colla ‘Muli’ is one of the most popular banana variety in Indonesia. As a commodity that is consumed fresh, is important to regulate the ethylene production of climacteric fruit in order to extend the shelf life and reduce deterioration. 1-MCP (1-Methylcycloprophene) is a potential chemical that can effectively regulate ethylene production in Muli bananas. In this study, 1-MCP in different concentrations (0, 0.25, 0.50 and 1.00 µL L-1) were applied at two maturation stages to observe the effects. Lower 1-MCP concentration was effective in delaying fruit ripening on mature green stage shown by fruit firmness maintenance and improved shelf life up to 4.5 days longer than control. The application of 1-MCP was effective in delaying fruit ripening if applied prior to climacteric stage.
Financial access of farmers and factors associated with the access: empirical evidence of banana farms in West Java, Indonesia
Authors: Wulandari E , Ernah  , Supyandi D 
Published: October 2019

Abstract
Access to finance has an important role in managing agriculture. Farmers in Indonesia can access finance from different sources of finance such as from banks, micro finance institutions, government through farmers’ associations, buyer/traders, agricultural input kiosks, and from other sources of finance including family and friends. The objective of this research was to analyse the financial access of farmers and factors associated with the access. A survey was conducted to collect data especially from one hundred banana farmers in the centre of banana production in West Java, i.e. Cianjur and Ciamis District. The data were analysed using descriptive statistics and logistic regression. The results show that the majority of farmers had access to finance from government distributed through farmers’ association, and from family and friends. Furthermore, the results show that factors associated with the financial access of farmers differ among the sources of finance. Age and farming experience have statistically significant association with the access to finance from bank. Moreover, education and farm size significantly associate with the access to finance from buyer/trader.
Genetic Parameter Contributing to Lodging Resistance of F2 Population in Red Rice
Authors: Mustikarini E D , Prayoga G I , Santi R , Nurqirani Z , Saragi H 
Published: October 2019

Abstract
The effectiveness and successful of selection depend on the value of genetic variability, heritability and genetic advance estimation. The purpose of this research is to measure the value of genetic parameters (variability, heritability and genetic advance) of F2 lines derived from crossing of mutant red rice, local accession of red rice, and commercial upland rice varieties. This research used single plant design. The rice materials used in this research was the F2 seeds derived from hibridization between MR1512 X Inpago 8, MR1512 X Banyuasin, Inpago 8 X Balok, Balok X Banyuasin and Balok X Inpago 8. Selection intensity used is 10%. The filled grains and grain weight have a wide phenotypic variability, whereas the plant height and the productive tiller numbers have wide genotypic variability. The high heritability value was found in the plant height, flowering time, and harvest time. The high genetic advance was found in plant height, productive tillers number, flowering time, and harvest time. In the present work, it has been shown that the plant height, productive tiller numbers, flowering time, and harvest time are the important traits for use in rice lodging tolerance breeding program.
Thermodynamic analysis of a Na-O-H thermochemical cycle coupled to a Gas Turbine Modular Helium Reactor (GT-MHR)
Authors: Marques J G de O , Costa A L , Pereira C 
Published: October 2019

Abstract
Hydrogen (H2) is considered a clean fuel because its combustion releases heat, water and near-zero carbon emissions. This substance can be produced through many routes, including thermochemical cycles in which water molecules are splited into oxygen and hydrogen through specific chemical reactions supported by an appropriate heat source at specific temperature conditions. There are a wide variety of thermochemical cycles under development, many of them require temperatures higher than 1000°C while others, like the cycles U-Eu-Br, Mg-Cl and Cu-Cl can operate below 550°C. The reduction in the temperature levels of a thermochemical process allows the use of various energy options, facilitating H2 production. So, the main aim of the paper is to analyze hydrogen production according to the Na-O-H thermochemical process whose required heat is supplied by a Gas Turbine Modular Helium Reactor (GT-MHR), a nuclear power plant (NPP) with low cost and low carbon emissions. The Na-O-H is a fresh chemical process that can operates at temperatures close to 400°C. The system will be studied in the software Engineering Equation Solver (EES) according to the first and second laws of thermodynamics. The results indicate that such system can produce around 3.654 kg/s of H2 considering a mass flow rate of 500 kg/s of helium coolant at 850°C coming from GT-MHR.
Decision support system for integrated management of hydro-thermal-wind-solar hybrid energy system
Authors: Shen J J , Li X F , Wu Y , Zhou B B 
Published: October 2019

Abstract
A decision support system is presented for integrated management of hydro-thermal-wind-solar hybrid energy system. Three main modules are included, data management module, operation conditions and constraints input module, and generation schedule optimization module. The DSS is designed based on an advanced technical framework and implemented using Java program-. Many user-friendly interfaces are available to enhance the usability and flexibility of all modules. Since 2016, the DSS has been used to make everyday quarter-hourly generation schedules of 170 hydropower plants, 150 wind plants, 80 solar plants, and 11 thermal plants operated by the dispatching center of Yunnan Power Grid. More than 1000 operational schemes have been carried out by all power plants.
Research on the relationship between environmental contamination level and economic development standard—Based on the perspective of law and economics
Authors: Fa L N 
Published: October 2019

Abstract
Carbon emissions and fossil fuel are two causes of environmental pollution. Based on China’ s carbon emissions according to the Ministry of Ecology and Environment of the People’s Republic of China from 1990 to 2014 and GDP data analysis using multiple linear regression methods in economics. Excessive emissions of carbon can be an obstacle to impede the economic development. Therefore, the countries should protect the environment to sustain long-term economic growth.
Exploration on the perfection of regional environmental legal system and revelation on energy collaboration
Authors: Sheng Y Y 
Published: October 2019

Abstract
This article takes the law economics angle as the starting point, puts forward the suggestion for the improvement of the regional environmental law system. Some suggestions are put forward, such as reforming the punishment mechanism from the angle of law and economy, improving the national awareness of environmental protection and promoting the internationalization of the mechanism of environmental protection. To promote the energy cooperation under the background of Belt and Road Initiative, in view of its great importance to China, by perfecting the environmental legal system and constructing the green energy system to protect the green energy system.
Discussion on the technical route of water pollution prevention and comprehensive utilization in thermal power plant
Authors: You L Z , Han Q Q , Yin J Y , Zhu Y 
Published: October 2019

Abstract
91 Thermal Power Plants have investigated and the problems in water management work have analyzed in this paper, combined with the policy situation. The technical route is divided in two steps. The first step for the whole plant water quality optimization, and processing, recycling use of water resources is achieved step, realize high salt wastewater minimization; The second step for the comprehensive management of waste transformation, unable to return to the high salinity wastewater, unified with the consumption and discharged into the wastewater comprehensive treatment system, through the pretreatment of softening, concentration reduction, evaporation desalting and solid waste disposal, wastewater recycling to achieve. It provides a reference for thermal power plants to explore the prevention and control of water pollution and comprehensive utilization.