bluuebunny/crossref_metadata_2025_split huggingface dataset:
Authentic assessment instruments for performance in mathematics learning in elementary schools
Authors: Yudha R P , Anggara D S , Zulaeha O 
Published: November 2019

Abstract
Products in the form of assessment instruments are packed in book form. Guidance on the use of authentic assessment instruments of the performance of elementary school students that contain; 1) assessment purpose; 2) the division of the syllabus; 3) lattice; 4) observation sheet; 5) rubric. This research is an R & D development model using Borg and Gall analysis that modifies researchers into three stages including: (1) introduction; (2) product development (development); (3) Presentation of product development result. Research subjects at SD Nurrusshidiq city Cirebon and SDN Karanganyar Cirebon City. Validity uses expert validation from four assessors with expert valuation techniques. Performance assessment comes from three evaluation experts, a mathematical instrument and one senior math teacher. (1) An overview of existing instruments in Cirebon Elementary School in Mathematics learning is that teachers still use the description of the tests in the classroom assessment process. (2) The stage of development of this study consists of the initial stage that contains the needs analysis, grid making, the manufacture of performance appraisal instruments, development stage consisting of expert validity test, small-scale test, and stage presentation consisting of large-scale experiments and test the practicality of the instrument. (3) Experimental results of the assessment.
A hybrid cryptosystem approach for information security by using RC4 algorithm and LUC algorithm
Authors: Rachmawati D , Budiman M A , Perangin-angin D F 
Published: November 2019

Abstract
Security is an essential aspect in the sending information. One of the data security methods is by using Cryptography. The methods used in this study, i.e., hybrid cryptosystem. The hybrid cryptosystem is one way of combining two different algorithms which are using a symmetric algorithm such as RC4 and asymmetric algorithm such as LUC. The RC4 algorithm will be used to encrypt or to decrypt files and LUC algorithm will be used to encrypt or to decrypt the key algorithm RC4. Tools that will apply to build the system are by using the Java programming language and Android Studio. Testing of the system utilizing encryption and decryption of files. The result of the system testing is the system will convert plain text into cipher text which in turn into the decimal using ASCII character code. In the algorithm LUC, the processing time required will be longer if the value of primes was a large number. Encryption and decryption time needed on both algorithms are proportional linearly with the length of the message. Based on the results of the research the average time needed to process the encryption with the RC4 algorithm and LUC are 287.06 ms and ms 74.86 whereas the average time for the process of decryption by using the RC4 algorithm and LUC was 53.43 ms and 94.26 ms.
Integrating character education in mathematics learning in Indonesia and Denmark
Authors: Sukestiyarno Y L , Cahyono A N , Pradnya I N 
Published: November 2019

Abstract
The purpose of this study was to compare the extent of success, lack of success, and its causes in integrating character education with mathematics learning in shaping the character of students in Indonesia and Denmark. The qualitative method by interviewing, observation, documentation and FGD was conducted involving 16 mathematics teachers and 20 students. The results showed that the integration of learning in Denmark succeeded in building character such as learning independence, work discipline, responsibility for completing tasks, curiosity in learning, but had not succeeded in bringing children to have a spirit of togetherness at work, friendliness in sharing physical communication science. While learning products in Indonesia are the opposite. This success occurs because the teacher assignment system is supported with the successful use of technology and the involvement of parents. The use of technology has had a less successful effect in Denmark. In order to support successful integration, learning must focus on the choice of one character for one mathematical competency, by using a spiral system for grade 1 to 12 education levels, the teacher assignment system must be able to involve the surrounding environment and utilize technological facilities.
Comparison study of Fibonacci code algorithm and Even-Rodeh algorithm for data compression
Authors: Rachmawati D , Budiman M A , Subada M A 
Published: November 2019

Abstract
The need for greater storage capacity is the cause of various compression techniques. By compressing, large data will be reduced in size to save storage capacity. This research will use Even-Rodeh code algorithm and Fibonacci code algorithm to compress the data. The performance of algorithms will be measured by Bitrate, Compression Ratio, Space Saving, and Compression Time (millisecond) and Time Decompression (millisecond). Compression is done by reading String in the text file, then Even-Rodeh Code algorithm and Fibonacci code algorithm create String code and perform compression process. The result of compression is the file with extension *. C and *. Fib which contains character information and String Bit. The results of compression can be decompressed to the original text file. The system test used a sample of Strings consisting of one type of character (Homogen String) and String comprising more than one kind of character (Heterogenous String) is stored in the text file by extension * .doc, * .docx, * .pdf. From the compression process on the homogenous String, the Fibonacci code algorithm is more efficient about the compression ratio of 0.25 and decompression time is 0.011 milliseconds compared with the Even-Rodeh code algorithm. While in the compression process on heterogeneous String Fibonacci Code algorithm is better than the Even-Rodeh code algorithm with an average Compression Ratio of 0.65 and decompression time faster with an average of 0.293 milliseconds.
Android-based online cattle card system for recording quality cattle in Semarang regency
Authors: Sugiharti E , Putra A T , Suyitno H , Subhan  
Published: November 2019

Abstract
The manual of cattle card system that contains the identity of each livestock has been made by the Ministry of Agriculture and Fisheries. The Informatics Engineering Study Program of Semarang State University through a research, had contributed to changing the manual of cattle card system into an Android-based online Information System (IS). The research by applying Science and Technology was carried out in Semarang Regency. The problem was how to change the manual of cattle card system into an Android-based online IS. Implementation of the research in Semarang Regency. The aim of this activity was that the recording of quality cattle in Semarang Regency could be changed from the manual of Cattle Card System to online Information Systems. The research activities were observations, interviews, collaborative activities, programming based on Android where the system was developed using the waterfall model, and triangulation.The result, an Android-based online IS prototype had been created to record quality cattle in Semarang Regency. This Android-based online IS had been registered to obtain intellectual property rights.
Enhancement strict avalanche criterion value in robust S-boxes construction using selected irreducible polynomial and affine matrixes
Authors: Alamsyah  , Bejo A , Adji T B 
Published: November 2019

Abstract
One indicator that a robust S-box is an ideal strict avalanche criterion value of 0.5. One method for applying the ideal strict avalanche criterion value is the selection of the precise irreducible polynomial and affine matrix. In this paper, we will discuss the robust S-boxes construction with the selected irreducible polynomial r(x) = x
8 + x
5 + x
3 + x
2 + 1 combined with the three selected affine matrixes i.e. t
1, t
2, and t
3. Hence, the combination of selected irreducible polynomial and affine matrixes results in S-box1, S-box2, and S-box3. The test of strict avalanche criterion shows that S-box2 and S-box3 produce the same value of 0.49951. Nonlinearity and bit independence criterion tests are also conducted to complete the S-box testing.This result shows S-box2 and S-box3 are the best S-boxes compared to S-box1 and S- boxes from previous studies.
Traffic control optimization on isolated intersection using fuzzy neural network and modified particle swarm optimization
Authors: Angraeni N , Muslim M A , Putra A T 
Published: November 2019

Abstract
Traffic density in big cities due to congestion problems in various points of the city. This problem will occur worse at crucial times such as when rush hours and active working hours. The existence of a traffic light system as a traffic signalling device is a solution to overcome traffic congestion. Appropriate traffic light settings can minimize vehicle waiting times at intersections. The aim of this study is to optimize an adaptive traffic control that can adjust the conditions of traffic flow on certain road segments at isolated intersections. In this study optimization uses methods of Fuzzy Neural Network (FNN) and Modified Particle Swarm Optimization (MPSO). The optimization results will be compared with a regular method of Adaptive Neural Fuzzy Inference System without using MPSO. The simulation results show that the efficiency and adaptability of the combination method of FNN and MPSO are better than the Neural Fuzzy Controller without MPSO. A better result is also indicated by the value of Mean Squared Error (MSE) that decreased from 6.3299 becomes 2.065.
Application of geographical information system for the 3d modelling of close-range photogrammetry for documentation and landscape development of historical monuments
Authors: Subiyanto S , Prastyo A D , Suprayogi A 
Published: November 2019

Abstract
Historical monuments, in the form of immovable objects such as temple buildings are part of our lives, they represent our history. Historic buildings must be preserved for future generations, by documenting buildings in 3D. Three-dimensional (3D) Geographic Information System (GIS) can be used for landscape development planning around the building. 3D-GIS with GIS analysis function to provide information related to geographical location and 3D visualization. 3D GIS models can be interpreted as digital representations of terrain and objects contained in around. In this study, the method used is a close range photogrammetry method for 3D modeling using a non-metric digital camera. For the stages of research implementation, the stages of camera calibration, object shooting, processing of 3D models are divided. For the calibration process, 80% is obtained, fulfilling the calibration requirements. The building modeling phase consists of Automated Projects, the process of calculating and creating 3D models, 3D coordinate transformations, 3D model visualization and statistical analysis. Documentation of Gedong Songo Temple in Semarang Regency. This study 3D model results testing is done by calculating the difference in the distance of the model with measurements in the field (terrestrial) with the Electronic Total Station (ETS) and the distance measuring Tape. The results of the distance comparison analysis obtained a maximum distance shift value of 4.00 centimeters and an RMS value of 4.69 centimeters. The values obtained are relatively small.
Leveraging technology for teaching practices: what teachers learnt from the Facebook group
Authors: Abidin Z 
Published: November 2019

Abstract
Facebook has attracted large attention from teachers and has created a paradigm shift in the field of education. Facebook has become a learning space for teachers to enhance teacher’s professional learning. This study investigates the potential offered by Facebook for the enhancement of teacher professional learning in integrating technology into teaching practices. The study results showed that participation in the Facebook group spurred teachers to continually explore new techniques and ideas in the use of technology to support classroom activities. Participation in the Facebook group also helped teachers to increase self-efficacy and self-confidence. Teachers became more confident to use new technological tools to reach specific curricular goals. The findings of this study provided evidence that learning in a virtual space has the potential to encourage teachers in transforming their instructional practices.
Implementation of PHPMailer with SMTP protocol in the development of web-based e-learning prototype
Authors: Sudana I M , Qudus N , Prasetyo S E 
Published: November 2019

Abstract
The usage of information technology has developed rapidly. At present, the information system has been widely used in various fields, including the education sector, through various web-based learning systems. Information system becomes an important factor in the process of decision making system, data management, document management, and performance efficiency. In the education sector, the development of information systems can be applied to the teaching and learning process. One of them is an e-learning as a new innovation in the learning process. The development of e-learning become a solution of learning to become more interactive and productive. This prototype use PHPMailer Library on the SMTP protocol which is an alternative tools in the e-learning development. The PHPMailer Library become an intermediary of e-learning in sending emails automatically. PHPMailer can provide information to users about the activities carried out. Teachers, students and parents can monitor the teaching and learning process and the learning outcomes through notifications that send from email. This study use a waterfall software research and development model, and Object Oriented Programming (OOP) programming concepts. The Tests show that this prototype is successfully with 100% accuracy with a good level of responsiveness. The system testing results indicate that e-learning can provide an email notification to teachers, students and parents during the learning process. The development of e-learning can also be accessed from various media or devices.
Acute effect of tomato extract (Lycopersicum esculentum) on rat’s (Rattus norvegicus) behavior and body weight
Authors: Iswari R S , Yuniastuti A , Susanti R 
Published: November 2019

Abstract
Tomato is one of the natural beneficial fruits. It contains lycopene, one of the effective carotenoids, also tocopherol, Vitamin C, Vitamin A and many more nutrition. Mostly, people consumes tomato uncontrolled. It commonly consumed in large quantities and for long periods of time. Based on that cases, it needs to be considered because the consumption of excess antioxidants can trigger a back reaction and increase pro-oxidant compounds. Therefore, this research was to determine the safety level of pure tomato consumption. This research is an experimental research with high tomato dose as treatments. Five group i.e. control (K) 0 mg/ individual tomato extract; K1, 16 mg/ individual tomato extract; K2, 160 mg/ individual tomato extract; K3, 1600 mg/ individual tomato extract; and K4 16.000 mg/ individual tomato extract. Natural tomato extract doses that used for supplementation did not have acute toxicity. The observed behavior in rats did not show any significant difference between treatment and control group. This is probably the dose used in the study is still in tolerant dose for rats metabolism. So, it can be concluded that there is no acute effect on consumption of lycopene extract from tomato.
Hypoglycemic effects of Aloe vera peel extract on type 2 diabetic rats
Authors: Christijanti W , Juniarto A Z , Suromo L B 
Published: November 2019

AbstractAloe vera is one of many medicinal plants used as hypoglycemic. Higher glucose levels are one of the characteristics of diabetes mellitus. This research aimed to study effectiveness of Aloe vera peel extract on insulin and serum glucose levels of rats with type 2 diabetic. Twenty Wistar rats were induced intraperitoneally using single dose of 65 mg/kg of streptozotocin (STZ) and 230 mg/kg of nicotinamide acid (NA). The rats were divided into control and treatment groups, which was supplemented using 100 mg/kg, 200 mg/kg and 400 mg/kg body weight of Aloe vera peel extracts for 28 days, respectively. The serum glucose levels were measured after three days of induction, 2 and 4 weeks after treatment, while the insulin levels were measured after three days of induction and at the end of treatment. In the control groups, the serum glucose levels in the second and fourth weeks remained significantly higher (p<0.05) compared to the treatment group. The insulin levels of the groups with Aloe vera peel extract was significantly higher than control group. Aloe vera peel extract exerts hypoglycemic effects by reducing the blood glucose level and improving insulin secretion on the type 2 diabetic rats.
Species richness of the butterflies (order: Lepidoptera) in Mount Ungaran, Central Java
Authors: Rahayuningsih M , Azinar Ahmad T , Mukaromah A 
Published: November 2019

Abstract
Mount Ungaran is an area that has a relatively high biodiversity potential, including butterflies. The diversity of ecosystems in the Ungaran Mountains such as natural forests, plantations, fields, and settlements are the factors for diverse of biodiversity. Butterflies are one of the most important assemblages of insects that act as biodiversity indicators as well as the ecosytems. The objective of the research was to analyze the species richness of the butterfly (order Lepidoptera) in Mount Ungaran and their conservation status. The research was conducted on five (4) station, there are Medini, Gadjah Mungkur, Semirang and Banyuwindu. Time of the research start from January to June 2018. The method of the research using point count method and analysis by description qualitative. The Result showed that total 62 species (5 Family) of Lepidoptera was recorded, followed by Nymphalidae (39 species), Papilionidae (11 species), Pieridae (9 species), Lycaenidae (3 species), and Hesperidae (2 species). There was one species was protected by Indonesian ruler and CITES appendix II (Troides helena), two species were endemic of Java (Prioneris autothisbe and Mycalesis sudra), and two species was LC (Least Concern) by IUCN red list data (Lampides boeticus and Vanesa cardui).
Genetic evaluation of Central Javanese local duck based on the ovalbumin gene
Authors: Susanti R , Yuniastuti A , Iswari R S 
Published: November 2019

Abstract
Duck farm industry has a big contribution to the supply of animal protein sources in Indonesia. Reproductive efficiency in poultry is determined by the factor of the high ratio of hatching and fertilization, fertile duration, egg weight, and the number of eggs. Reproductive efficiency control genes play a major role in parent selection and provision of superior duck seeds. This study aims to evaluate the genetic quality of local ducks in Central Java based on the ovalbumin gene using PCR-RFLP technique. A total of 35 central Javanese local ducks were feathered on the inside of the right and left wings. Duck DNA is isolated from a feather sample. The ovalbumin gene was amplified with PCR techniques using specific primers TovaF1 and TovaR1. The product of the ovalbumin gene amplification (350 bp) is subsequently cut with restriction enzyme SspI (5′-AATATT-3′). DNA bands from restriction enzyme cutting then analyzed its genotype. The results showed that 6(17.14%) ducks had CC genotype, 16(45.71%) with TT genotype, and 13(37.14%) of CT genotype. Ducks with CC and TT genotypes showed higher hatchability compared to CT genotype. It was concluded that 22(62.86%) central Javanese local ducks were genetically superior in terms of hatchability (genotype CC and TT).
Growth of Elaeocarpus grandiflorus callus cultures in ms medium with various concentrations of growth regulators
Authors: Habibah NA , Widiatningrum T , Anggraito YU , Rahayu ES , Mukhtar K , Wijayanti N , Mustafa F 
Published: November 2019

Abstract
Rejasa contains bioactive compounds.Production of bioactive compounds can be done through callus cultures. This study will examine rejasa callus the growth of in various types and concentrations of growth regulators. The independent variables of this study are the types and concentrations of growth regulators (2,4-dichlorophenoxyacetic acid (2,4-D) and Picloram). Dependent variable is growth of callus. Callus growth was determined from the percentage of explants that produced callus, time of callus formation, and callus morphology. The explants used were young petioles grown on Murashige& Skoog solid medium with the addition of 2,4-D and Picloram at various concentrations. The results showed that the lowest percentage of callus formation observed in explants grown on medium with addition of 3.5 ppm 2,4-D (27%). The explants grown on medium with the addition of 3.5 ppm picloram showed the highest callus growth percentage (93%). Explant grown on MS medium supplemented with3.5 picloram showed the best average time of the callus induction, 29.9 days. Callus that is formed mostly brown, and in some treatments produce green callus. Based on the results of this study, the best medium for induction of rejasa callus is MS medium with the addition of 3.5 ppmpicloram.
The optimal sterilizing compound and culture medium in Elaeocarpus grandiflorus L. in vitro shoot induction
Authors: Rahayu E S , Widiatningrum T , Herlina L , Hermayani N , Amalia A R 
Published: November 2019

Abstract

Elaeocarpus grandiflorus L. is an identity plant of Salatiga City. Wherein, the plant is difficult to naturally propagation. This study would obtain propagation technique of E. grandiflorus by tissue culture. It was experimentally conducted, consists of two sub-experiments. The first aimed to find the optimal sterilization agent was conducted with a completely randomized design, namely sterilizing compound. There were two compounds studied, i.e., NaOCl and Ca(OCl)2. The second sub-experiment aimed to determine the optimal medium type and antioxidant compounds for inducing in vitro shoots. It was conducted with a completely randomized design with two factors, namely the medium type [i.e. Murashige & Skoog (MS) and Wood Plant Medium (WPM)], and antioxidant agents (i.e. activated charcoal and polyvinyl pyrrolidone/PVP). Data were analyzed by descriptive percentage, analysis of variance, and least significant difference test. The results showed that Ca(OCl)2 and NaOCl were effective to obtain the sterile and alive explants. The MS media added by PVP resulted in the most explants forming shoots, and WPM supplemented with PVP or active charcoal caused most explants regenerating callus. The results could be used as a basis for the development of in vitro shoot multiplication to reach an efficient propagation of E. grandiflorus.