bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Development of Web-Based Correspondence Information Systems in University Using Scrum
Authors: Saputra Nurirwan , Tentua Meilany Nonsi , Sari Ratna Purnama 
Published: March 2021

Abstract
Correspondence management at Universitas PGRI Yogyakarta (UPY) is still managed manually. When a student needs a letter from UPY, he or she must come directly to the Faculty admin. Students are required to write down the type of letter needed and their personal data. After that the letter will be signed by the dean of the faculty. This process takes a long time, especially when the faculty dean has a busy agenda or is not in place. This article develop a web-based Information System for PGRI Yogyakarta University. Scrum is a method to developing this system, which only need 1 month to finish this system, which faster and more effectife than conventional method. By Using conventional method, usually to develop system in University need minimum 6 months, it means Scrum 6 times faster than conventional Method. Based on the survey result of 30 respondents regarding the application, 73% having easy navigation, regarding whether the speed of application access 70% agree this system is relatively fast, regarding whether the features of the complete system 53% agree this system is very fast.
Development of Pocket Book Based on Science Literacy
Authors: Afifah Nur Laila , Murtono  , Santoso  , Ardianti Sekar Dwi 
Published: March 2021

Abstract
The purpose of this study was to determine the feasibility of science literacy based pocket books for fifth grade elementary school students. This research method refers to the Borg band Gall theory, using ten stages of research, namely information gathering, research planning, initial product development, field testing, revision, product testing, revision of field product testing results, validation, final improvement, and implementation. The data collection techniques used were observation, interview and questionnaire techniques. Sources of data in this study were fifth grade students and teachers in Rembang Regency. The design of the pocket book development is based on scientific literacy developed by the researcher, consisting of 3 parts, namely introduction, content, and closing. In the content section, the material integrates 4 aspects of scientific literacy. Product feasibility is seen from the validation results of material experts and linguists. From the material expert validation process obtained an average result of 3.33 with a percentage of 83% and very good category. The validation of linguists obtained results of 85% with an average of 3.40 and the category was very good. Based on the validation results, a scientific literacy-based pocket book is suitable for use as a companion book in learning.
A Need Assessment of Integrated Science Teaching Material Based Higher Order Thinking Skills (HOTS)
Authors: Hartik S , Utaminingsih Sri , Madjdi Ahmad Hilal 
Published: March 2021

Abstract
Indonesia’s ranking on the 2018 PISA results, Indonesia was ranked 70 out of 78 countries that participated in the OECD with an average score of 396. The purpose of this study was to analyze the need for the development of HOTS-based integrated science teaching materials for grade VI elementary schools. The research data were obtained through literature study, documentation, observation and interviews. The data analysis involved several steps, namely, data reduction, categorization, validity checkings, interpretation, and inferences. The things analyzed include: 1) Local conditions of the school, 2) Student books and teacher books, 3) Curriculum, and 4) Student characteristics. The results of this research showed that students only use books from the government. There are no HOTS based books yet. Based on the result, the development of HOTS based integrated science teaching materials in grade VI elementary schools is required.
Media Technology Takontikasi Games Based of Realistic Mathematics
Authors: Zaenap Siti , Utaminingsih Sri , Santoso  
Published: March 2021

Abstract
The purpose of this study was to analyze the need for instructional media in improving students’ mathematical communication on FPB and KPK material for grade IV elementary school students and to test realistic mathematics-based takontikasi media designs. This research method refers to the theory of Borg and Gall, using ten steps of research implementation. The steps in the research are as follows: information gathering, product design, product manufacturing, initial product testing, product revision, product testing in the experimental class, revision of field product test results, validation, final product revision and dissemination. Data collection techniques used include observation, interviews and questionnaires. The analysis used in this research is quantitative and qualitative analysis which includes learning observations, and validation of takontikasi media products. Sources of data in this study were teachers and fourth grade students of SDN 1 Gunungsari and SDN 2 Sendangagung. Product feasibility is seen from the results of material expert validation. From the material expert validation process obtained an average result of 21,5 with a percentage of 89,5% and very good category. Based on the results of the validation of realistic mathematics-based takontikasi games, it is stated that they are suitable for use in the learning process.
Android-based math learning to improve critical thinking
Authors: Widiyatmoko A , Utaminingsih S , Santoso  
Published: March 2021

Abstract
This research aims to describe and the test of effectiveness of android-based integer learning through Smart Apps Creator (SAC) to improve the critical thinking skills at elementary school students. The method research is research and development. The development procedure is adapted from Borg & Gall using ten stages starting from research and information collecting, planning, develop preliminary form of product, preliminary field testing, main product revision, main field testing, operasional product revision, operational field testing, final product revision, dissemination and implementation. Product validation is performed by material, media, and practitioner validators. Research data is obtained from questionnaires, test, observations, and documentation of five elementary schools in Kudus. Analysis of research data uses T-test to determine effectiveness. The results were matched between classes treated using android-based media and SAC with comparison classes that were not treated using android-based media with SAC. The result of T-test in control and experiment class=4,457 trought the degrees significant 0,000<α=0.05. The study results of the experiment group were higher than the control group. Therefore, android-based integer learning with smartapps creator is effective for improving the critical thinking skills of elementary school students.
Effectiveness of Blended Learning to Improve Critical Thinking Skills and Student Science Learning Outcomes
Authors: Prihadi  , Murtono  , Setiadi Gunawan 
Published: March 2021

Abstract
This study was based on the limited accessibility and connectivity of student learning during the COVID-19 pandemic. The purpose of this study was to determine effectiveness of Blended Learning in improving students’ critical thinking skills and science learning outcomes. This study used a quasi-experimental design in the form of Nonequivalent control group design. Meanwhile, data collection used questionnaires and performance tests in SD Dabin II, Tlogowungu District. The data analysis in this study used the prerequisite test including the normality test and the homogeneity test, while the research hypothesis was tested using the T test and statistic descriptive test. The results in this study indicate that the Blended Learning model is effective in significantly improving students’ critical thinking skills and science learning outcomes. This research is expected to become a foothold in further research as a further development on the use of blended learning.
Design of Invention-Based Student Activity Sheets Technology to Improve Learning Outcomes of Cube and Block Volume
Authors: Sayekti Budi , Murtono  , Madjdi A. Hilal 
Published: March 2021

Abstract
This study aims to describe the characteristics of discovery learning activity sheet design for students, especially in class V SD Negeri Sukoharjo 01. The design of student activity sheets to improve student learning outcomes This study uses the Research and Development (R&D) method. describes the ten steps of conducting the research. However, in this study, due to time and cost limitations, the researcher simplified it into 7 steps, stage (1) potential and problems; (2) data collection; (3) product design; (4) design validation; (5) design revision; (6) product testing; (7) product revision. The design characteristics are based on the needs analysis of students ′worksheets. The analysis of the needs of students’ worksheets will be carried out on 50 students in grade 5 as the experimental class and 40 students in the control class. Collecting data using a questionnaire on student activity sheets and student learning outcomes tests. Based on the validator test, the material expert team and discovery learning activity sheet media of students were feasible to use in learning. The next stage is to determine the effectiveness of the student activity sheet by conducting a large group field test of the experimental class in class V SDN Sukoharjo 01 and SDN Sukoharjo 03.
Analysis of TBLA (Transcript Based Lesson Analysis) SainsMastery of Mathematical Concepts
Authors: Hariyanto  , Utaminingsih Sri , Santoso  
Published: March 2021

Abstract
The Think Pair Share Learning Model assisted with conversion tool games is a model designed for student-centered learning. So that students as individual subjects and social fields become inseparable. The purpose of this study is to reveal the pattern of knowledge construction through conceptual mastery using Transcript Bassed Learning (TBLA). This study involved 28 students of grade 5 SDN Bendo. In this study, it was divided into 2 cycles, namely cycle 1 focused on the unit length conversion material while the cycle concentrated on the material addition and subtraction of length unit conversion. The activities in each cycle will be recorded via video or audio. Then the recording will be used as a transcript of the learning dialogue and then analyzed using Arvaja’s (2007) student response type. In addition to the transcript analysis, the students were given a written exam through the LKS (Student Worksheet). For the first cycle the class average value reached 75.36, while in the second cycle the average value reached 78.93. The percentage of completeness of all cycles has exceeded 80%.
Design of Backward Chaining for Identification Palm Oil Diseases Base on Expert System
Authors: Riyadi Ahmad 
Published: March 2021

Abstract
The most important oil crop and highest production in the world is oil palm. Crude Palm Oil (CPO) and Palm Kernel Oil (PKO) are the products of the fruit. The benefits of palm oil include being used for food, chemical industry, pharmaceuticals, health supplements and as a source of biofuels. The challenges faced by oil palm growers are the diseases and pests that attack them. This research will design of backward chaining methode for expert system that can identify diseases in oil palm to provide treatment. The designs that have been produced include: knowledge representation about symptoms, diseases and treatment, input output systems and process design which includes data flow diagrams, databases, search for backward chaining using a decision tree. This design can be implemented using various programming languages, especially database or visual programming. The results of this research are very suitable as a reference for novice researchers who are interested in expert systems. The weakness of this research lies in the research domain that only comes from literature, it has not directly involved oil palm experts.
Calculations of detuning with amplitude for the McMillan
electron lens in the Fermilab Integrable Optics Test Accelerator
(IOTA)
Authors: Cathey B. , Stancari G. , Valishev A. , Zolkin T. 
Published: March 2021

Abstract
The McMillan electron lens will be one of the experimental
implementations of nonlinear integrable lattices in the Fermilab
Integrable Optics Test Accelerator (IOTA). We describe the physics
of the nonlinear McMillan lens and calculate the tune dependence
with amplitude from the experimental parameters. Some of the
implications for the design of experiments in IOTA are discussed.
Electron dynamics for high-intensity hollow electron beams
Authors: Rossi A. , Nikiforov D. , Arsentyeva M. , Barnyakov A. , Levichev A. 
Published: March 2021

Abstract
Hollow Electron Lenses (HEL) will be installed at the High
Luminosity Large Hadron Collider to provide a continuous and
controlled depletion of beam halo particles by interaction with a
superimposed hollow electron beam, of intensity as high as 5 A,
and radii 1.1–2.2 mm for 7 TeV LHC operations. In this
paper, issues related to the propagation of high intensity hollow
electron beams are discussed and the simulations of the electron
beam dynamics with feedback to the HEL design are presented. The
main results are the rise of the electron beam accelerating voltage
from 10 kV, as in the initial proposal, to 15 kV and the
validation of the 5 T magnetic field at the main solenoids as
being sufficient to guarantee a stable electron beam.
Progress in space charge compensation using electron columns
Authors: Park C.S. , Freemire B. , Chung M. , Stancari G. , Stern E. 
Published: March 2021

Abstract
Space charge compensation allows for increased beam current
in linacs and RFQs. A novel application of space charge
compensation, the electron column, offers the opportunity to realize
more intense beams for high energy physics in circular
accelerators. The concept relies on ionization of residual gas by
the primary beam, with electromagnetic fields used to confine and
shape the space charge neutralizing plasma. Prior experimental
efforts and simulation studies are reviewed. They indicate that
electron columns could be successfully deployed in accelerator
rings. The experimental demonstration of an electron column is
underway at the Integrable Optics Test Accelerator at Fermilab. The
experiment, instrumentation, and physics program are discussed.
The applications of plasmonics biosensor and bamboo char filtration to the prevention of nervous necrosis virus infection in grouper farming ponds
Authors: Wang S C 
Published: March 2021

Abstract
Fiber optic particle plasmon resonance (FOPPR) biosensors have been useful tools to determine a variety of biological samples including viruses with superior detection limits than using conventional ELISA methods. In addition, without using tedious procedures required in ELISA protocols, FOPPR method can minimize contamination interferences and obtain accurate results in timely fashion. FOPPR biosensor is potentially a suitable virus detection device to implement in fish farms. In Taiwan, aquaculture products such as groupers suffer tremendous loss because of ineffective disease prevention efforts. The infected signs are not detected in the early stage before severe outbreak to cause uncontrollable consequences. Therefore when the virus level is low, using highly sensitive FOPPR biosensors to monitor pond water is a promising means to improve the effectiveness of aquatic product disease prevention by taking water treatment actions. We have also developed FOPPR assays to determine nervous necrosis virus (NNV), which cause massively high mortality rate (∼90%) in larva and juvenile stages of grouper species. Using coat proteins of NNV as standards in 2% salt water, the detection limit of 100 ng/mL is obtained. This limit is nearly 2 orders of magnitude lower than that using ELISA assays and adequate to indicate the severance level of NNV outbreak. Ground meat of infected juvenile grouper was diluted with saline to prepare simulated water samples. Ultra-low virus level of 40k TCID50 per mL is found in filtrate. The comparison determination data between using FOPPR and quantitative PCR methods are acceptable too. Unlike RT-PCR method not able to detect NNV RNA in pond water until severe infection, we demonstrate that FOPPR assay can detect NNV in pond water at very low NNV level at early infection stage, a couple of days prior to the outbreak occurrence. We also show that commercial FOPPR biosensor maintains stable immuno-sensing signal readout in indoor aquaculture settings. We will also discuss the potential applications of using FOPPR to monitor grouper larvae pond water to activate biochar filtration equipment when infection sign occurs.
Reducing MSDs and physical workload of manual-harvesting peasan
Authors: Sa’diyah N , Maksum M , Mulyati G T 
Published: March 2021

Abstract
The peasant who owns small paddy field does their harvesting activity manually using sickle and wooden-bench manual thresher. Harvesting activity using those tools make peasant work in bad posture, and it is done repeatedly in a long period which increases the risk of Work-related Musculoskeletal Disorders (WMSDs) and physical workload. The aim of the study is to reduce WMSDs and physical workload of the peasant by redesigning the tools used in harvesting activity. The proposed way is evaluation using a digital human model to create more comfortable and safer work system so that the Nordic Body Map (NBM) score, work posture score assessed by using Rapid Upper Limb Assessment (RULA), and the compression force of work biomechanics can be decreased. Theoretically, some alternative size of wooden-bench manual thresher design can decrease the RULA score, from high to moderate. Practically, the new manual paddy thresher that was proposed is better optimized. The use of that tool reduces peasants’ physical workload as much as 1,47% and NBM scores as much as 7-20%.
An energy needs analysis for agricultural sector in Indonesia
Authors: Widjaya E R , Budiharti U , Prabowo A 
Published: March 2021

Abstract
Agriculture sector contributes highly to the GDP of Indonesia. One of the strategies to increase the agricultural production is by accelerating the application of agricultural mechanization. Due to the limitation of manpower in agriculture, the use of agricultural machinery has increased massively since 2014. The index of mechanization has been leveraged from 0.015 in 1983 to 1.68 in 2018. The use of machinery in agriculture will continue to increase, given the adequacy levels of some machinery are still low. The adequacy level of available machinery was estimated at about 49.2% for 2-wheel tractors, 11.9% for 4-wheel tractors, 39.7% for water pumps. This paper estimates the energy use in agriculture by expanding the previous studies of the mechanization index and the adequacy level of agricultural machinery in Indonesia. Currently, the energy in agriculture is under the category of ‘Other Sector’ based on National Statistical Energy Report. Employing available data, this study estimates that the consumption of diesel oil (GasoilCN48) by agricultural machinery is approximately 1.5 million kL or about 82% of particular fuel consumption at ‘Other Sector’ of 2018 Report. Simulating to exponentially increase adequacy level of on-farm machinery (mechanization index up to 4.6 by 2028), the energy consumption of machinery may also grow equal to 3.5 million kL/year. The contribution of energy consumption from agricultural sector can be targeted to intensify the renewable energy application. The renewable energy has been disseminated progressively in agriculture sector. Those are biomass as heating fuel in grain dryers, solar energy to power water pumps, dual fuel (LPG/biogas & gasoline) engines and biodiesel (B30 to B100) for fueling the agricultural machinery with diesel engine. The B100 can be efficiently and effectively used as an alternate fuel for small diesel engines.
Spatial projection of food needs and food availability in Purworejo District
Authors: Nugroho Ananda Trisakti , Sudrajat  , Awanda Pratama Muhammad 
Published: March 2021

Abstract
Food needs and food availability is a factor in measuring food security. Conditions of availability and demand for food always changes every year, because it is influenced by several factors. Uncertainty of supporting factors regarding food availability (such as land area, climate and others) as well as the population that continues to increase which has an impact on amount of food needs, can cause an imbalance in the region’s food adequacy conditions. This study aims to project the availability and need for food until 2030 in Purworejo District. The study was conducted using quantitative methods that were analyzed descriptively and spatially. The study uses data on population, agricultural production and the value of rice consumption obtained through the Central Statistics Agency (BPS). The results show that the projected availability and demand for rice in 2030 shows an increase in both the amount of availability and food needs. Total food availability increased by 1.27 percent from 2018, while total food demand increased by 3.78 percent from 2018. Spatially, there was an increase in the number of sub-districts included in the “low” classification of food availability in 2030, namely Purworjeo, Gebang and Bruno Sub-district, while the districts that have the highest food needs from 2018 to 2030, still occur in Purworejo District.
Perceived benefits and constraints in urban farming practice during COVID-19
Authors: Suryantini A , Anjani H D , Fadhliani Z , Taryono  
Published: March 2021

Abstract
COVID-19 has a significant impact on supply chains and logistics, causing a severe threat in accessing fresh and nutritious food. Urban farming activities have the potency to contribute to fresh and nutritious food and reduce the cost of food consumption. This study objective is to emphasizing the critical role of urban farming during the COVID-19 pandemic. By utilizing a questionnaire, we descriptively present community members’ characteristics practicing urban farming located in residential neighborhoods in the City of Yogyakarta. We also explore the perceived benefits and constraints of urban farming in the pandemic era. Most urban farmers favorably perceived the benefits of urban farming in the COVID-19 pandemic, primarily its psychological benefits. Another positive effect of urban farming perceived by the gardeners is its ability to enhance the accessibility of nutritional diets and food security. In general, most of the respondents find no barriers to obtaining inputs used to practice urban farming during the COVID-19 situation. Instead, the main constrain comes when the farmers need to host events and activities to engage the neighborhoods.
Agriculture land management in Gorontalo Province
Authors: Putri R F , Dewi R P , Sulistya A R 
Published: March 2021

Abstract
Gorontalo is the smallest province in Sulawesi Island with the higher population density than three other provinces. But, it has large agriculture area with the corn as the highest exported commodity in 2019. Most of people in Gorontalo Province are working in agriculture sector. Although the number of population are increasing every year, the agriculture land are still existing in Gorontalo Province. This study focuses on population dynamic and agriculture land management in Gorontalo. Secondary data from Statistic Board Center of Indonesia are used to assess the population dynamic, such as population growth rate, population density, and population pressure on the agriculture land. We used time series data from 2008 until 2017. The data then analyzed with descriptive quantitative method by discussing the results of data calculation. The results show that although there is an increasing of population density in Gorontalo Province, but the population pressure is low. The optimum development on agriculture sector in Gorontalo Province affect the high productivity on many agricultural commodities, especially for corn crop. So, the agriculture land area are still prioritized in this region.