bluuebunny/crossref_metadata_2025_split huggingface dataset:
The optimization of Human Blood Agar (HBA) for Streptococcus pneumonia growth
Authors: Oktari A , Vanawati N , Kurniawati U I 
Published: November 2019

Abstract
Sheep Blood Agar (SBA) is a standard media for microbiology examination. The difficulties of sheep blood resources on a tropical country and developing countries causing an obstacle in culturing Streptococcus pneumoniae. Beside usage of Human Blood Agar (HBA) was totally not recommended for culturation. The purpose of doing this observation is to modify HBA by washing human blood erythrocyte. Method experimental study with True experimental post-test only design. Colony of Streptococcus pneumoniae that had been checked purity were planted on HBA media and SBA media. Observation was done in 24 hours and 48 hours, comprising of colony diameters, hemodygest diameters, and the characteristics colony. After 24 hours, mostly result was found that Streptococcus pneumoniae colony diameters on SBA media have a significant difference (0,8 mm) with HBA media (0,6 mm). On the 48 hours observation, mostly colony diameters on HBA media (1,5 mm) were narrower than those on SBA media (1,8 mm). After 24 hours, the mean of Streptococcus pneumonia haemolysis diameters, on SBA media (1,2 mm) were significantly different with HBA media (0,6 mm). After the 48 hours observation, haemolysis diameters were widest in SBA media (1,6 mm) and in HBA media (0,8 mm). The characteristics of colony in 24- and 48-hours observation were not having a significant difference between them. Conclusion HBA is an acceptable alternative media for culturing Streptococcus pneumoniae in poorly resourced laboratories.
Analysis of online market system design strategy based on external and internal factor evaluation matrix
Authors: Primawati A , Paramita A , Lukman L , Rangka I B 
Published: November 2019

Abstract
The development of e-commerce or e-Market technology today creates a culture of Smartphone usage as the main media in communicating and doing business so it makes the opportunity to be utilized in overcoming every conventional issues in doing business. One of the issues in Tanah Abang Market is the congestion due to the large number of visitors coming from outside Jakarta. Therefore, a proper market development strategy is needed. The method used in this research was SWOT (Strengths, Weaknesses, Opportunities & Threats). The strategy is composed of the calculations described in the EFE (External Factor Evaluation) and IFE Matrix (Internal Factor Evaluation). The result of internal factor analysis from IFE matrix obtained value equal to 3,27, while result of External factor analysis from EFE matrix obtained score equal to 3,35. Based on the data, the strategy of market development by designing the Online Market application is legally specific for the official seller in Tanah Abang Market is one of the right strategy in overcoming the issues in Tanah Abang Market. Furthermore, the design of Online Market System application for Tanah Abang Market (Blok F) produced in this research is part of the implementation of market development strategy.
Decision support system design of higher education scholarship recipients with android-based
Authors: Subaeki B , Irfan M , Adipradana R S , Alam C N , Ramdhani M A 
Published: November 2019

Abstract
The purpose of this study is to present the design of Decision Support System (DSS) to analyse the college scholarship recipients on the android-based. The design methodology for selecting scholarship recipients is used Fuzzy Multiple Attribute Decision Making (Fuzzy MADM). Fuzzy MADM is an algorithm that used to find the optimal result of a number of alternatives with certain criteria. This method is chosen because the calculation of this method uses multiplication to correlate the attribute rating and only yields the largest value that will be selected as an alternative scholarship recipient. The object set in this research is UIN Sunan Gunung Djati Bandung student. The design system is made based on android with hardware in the form of smart phone. The design results have a level of compliance with regulatory standards that have been established. The results also indicate the logical and appropriate target selection mechanism for scholarship recipients for the most eligible students who received scholarship assistance.
Web-based design for lecturer performance reporting applications
Authors: Ramdania D R , Irfan M , Saprudin R , Alam C N , Ramdhani M A , Yusli D 
Published: November 2019

Abstract
A lecturer as an educator in a college institution obtains professional appreciation for their work through certification of lecturer who is rewarded in the form of lecturer allowance. To obtain a lecturer allowance, lecturers are required to report their academic activities. The purpose of this study is to describe the design of web-based lecturer performance reporting applications. In this study the application is modelled with UML modelling (Unified Modelling Language) that describes a system design. The object of research that used as a user of the application is a lecturer of Private Islamic Higher Education. The results of application design show that the system can work well; can process data of lecturer activities among others: education, research, community service, and supporting which then converted to semester unit value (SKS). This lecture performance reporting application is user friendly, easy access, good system security, and have a good data base.
Cyclically ordered group and C*-dynamical system
Authors: Yusnitha I , Rosjanuardi R , Gozali S M 
Published: November 2019

AbstractLetGbe a group equipped with a cyclic order such thatGbe a cyclically ordered group. Under the given order and a particular condition onG, the positive coneP(G) ofGis a cyclically ordered semigroup. We induced the representation of aC*-algebraAin a Hilbert space such that we obtain a covariant representation of an action ofP(G) by automorphism ofA. C*-dynamical system (A,α,P(G)), whereαis an action ofP(G) by automorphism ofA.
A thin power law fluid underside a horizontal flat plane
Authors: Yulianti K 
Published: November 2019

Abstract
The dynamics of a thin Power-law fluid underside of a horizontal flat plane is investigated. Using lubrication approximation, we derive governing equation for height of the thin film. The gravity and the surface tension are the main forces that act to the fluid. The equations solved numerically. Based on simulations, results show that the characteristic of the fluid significantly influences the dynamics of the thin film.
Design and characterization of capacitive sensor for soil water content measurement
Authors: Rahayu E R , Aminudin A , Iryanti M 
Published: November 2019

Abstract
Soil water content is one of the measurable parameters which can be used as a reference in the selection of efficient land use. The methods used for measure the soil water content is gravimetric method which is commonly used for direct measuring and indirectly method with the measurement of traits related to water content, namely the dielectric constant (relative permittivity). Interdigital capacitor sensor is designed as a unit of measurement of soil water content. Interdigital capacitor sensor (IDC-S) is a capacitive sensor which is able to change the value of the physical parameters to electrical quantities (capacitance). The measurement of IDC-S capacitance value of soil water content variety was done. It is shown that greater percentage of soil water content cause greater value of capacitance. The greater number of sensor electrode increases its sensitivity. IDC-S has sensitivity of 5.589 pF for N=200 electrodes, 4.6362 pF/% for N=150 electrodes and 3.8865 F/% for N=100 electrodes.
The analysis of student’s laboratory work skill on chemical equilibrium topic
Authors: Sari S , Sobandi O , Malik A 
Published: November 2019

Abstract
Assessing the student’s performance during practicum is important to measure the student’s skill during practices. This study aims to analyze student’s scientific skills during the Chemical Equilibrium practicum. For this research, researchers used one shot case study design of experimental methods. The data were obtained through the description of students activities during the practical training and the analysis of performance assessment. The result showed that 100% of the students are well-skilled at using spray bottles, dropping plates, reading the universally-indicated pH trajectory, and cleaning the equipment. 93,75% of the students excelled the skills of using pipettes, measuring the volume of the solution, and stirring the solution. The students are less-skilled at shifting the solution and diluting the solution, with only 68,75% of the students passed the expected activities. The skill of choosing and disposing the waste of the practical training has the lowest number of students excelled, with only 50% of them passed the expected standard. The student’s scientific skill needs an upgrade especially on the skill of choosing and disposing the waste.
Development of student’s submicroscopic representation ability on molecular geometry material using Augmented Reality (AR) media
Authors: Wulandari I , Irwansyah F S , Farida I , Ramdhani M A 
Published: November 2019

Abstract
The purpose of this research is to apply a learning using Augmented Reality media to develop submicroscopic representation ability. The method used is a classroom research on the fourth semester students of Chemistry Education department, UIN Sunan Gunung Djati Bandung. Information obtained by measuring students’ activities during learning, completion of worksheet, and submicroscopic representation ability after learning. The results obtained from the worksheet completion are included in the very good category (with an average of 86), with the highest ability shown in the determination of bonding domains and non-bonding domains based on Lewis structure (with an average of 94). Moreover, the results of submicroscopic representation ability tests after learning are included in the very good category (with an average of 81.5), with the highest ability shown in the determination of bonding domains and non-bonding domains based on Lewis structure (with an average of 92). This is because students discuss and collaborate very well and are supported by Augmented Reality (AR) media. Thus, Augmented Reality (AR) media can be used as one of media in developing students’ submicroscopic representation ability on molecular geometry material. Development of Students’ Submicroscopic Representation Ability on Molecular Geometry Material Using Augmented Reality (AR) Media.
The development of guided inquiry worksheet on acid and base experiment for grade XI
Authors: Priscylio G , Andromeda  , Mawardi  , Rochintaniawati D 
Published: November 2019

Abstract
This research aims to generate the development of guided inquiry worksheet on acid and base experiment for grade XI valid and practical. This development research using stages of 4-D model i.e define, design, develop, and disseminate. Instruments of data collection used is validation sheet and practicality questionnaire. The developed experiment worksheets based on guided inquiry was validated by five expert and practicality test by 26 students eleven-grade. The data obtained were analyzed using Kappa Cohen Formula. The data obtained were analyzed by using Cohen Kappa Formula. The validity test of the developed experiment worksheets based on guided inquiry is in high validity categories. The practicality test of students about developed experiment worksheets based on guided inquiry indicated a very high category. While the teacher practicality about developed student worksheet obtain a very high practicality category. This finding also suggests that the developed experiment worksheets based on guided inquiry can help students to learn find the concepts of chemistry. In conclusion, the worksheet can be used in chemistry learning process in laboratory (acid and base experiment).
E-portfolio assessment model on collaborative problem solving (CPS) learning based on digital learning environment
Authors: Sutarno H , Putro B L , Judhie R R , Piantari E 
Published: November 2019

Abstract
The 21st Century Skill is the knowledge and skills needed to deal with the problems of the 21st century. This study uses the concept of 21st century skills published by The University of Melbourne in the KSAVE framework (Knowledge, Skills, Attitudes, Values, Ethics). The KSAVE framework illustrates that collaborative problem-solving (CPS) lessons, and learning through a digital network are the glue of 21st century skills. Learning CPS is a glue for the achievement of critical thinking skills, problem solving, decision-making and collaboration. While learning through a digital network is a combination of information literacy skills, ICT literacy, personal responsibility, and social responsibility. This study aims to create an e-Portfolio assessment model on CPS learning based on learning through a digital network in the form of Moodle learning management system (LMS). The development of the “e-Portfolio Assessment Model” uses the correlation method between the learning outcome that is to be achieved in CPS learning. Learning outcomes include knowledge, collaboration performance, and skills. The results of the implementation show that the e-Portfolio can provide a report on the CPS learning process properly.
Web-based student master book information system in vocational school of Muhammadiyah Banyuresmi
Authors: Maulani G A F , Suryadi A , Nugraha Y , Hamdani N A , Purwanti Y 
Published: November 2019

Abstract
The main student book information system is a web-based application that comes as a form of modernization from a manual student main book that can streamline, and streamline the time in importing, searching, etc. This application is made as simple as possible so that it is easy to use by the user, in terms of interfaces and interactions in the application so even for novice users it will be easy to understand, but even though simple, this application can contribute a lot of reasons, the Student Parent Book is the most important book in school administration. Especially data management of students, the Student Parent Book Information System Application is based on localhost (local network), meaning that when you want to access it does not need to be connected to the internet, just connect to the local network and can only be accessed by users who are connected with the admin, or recorded by admin as someone who has access rights.
The effectiveness of using integrated science practice worksheet of integrated type to enhance environmental literacy
Authors: Nurhayati  , Hernani  , Sinaga P 
Published: November 2019

Abstract
The aim of this study is to know the effectiveness of the use of integrated science practice worksheet of integrated type to enhance environmental literacy. The method used in this research was quasi experimental method. The research design uses non-equivalent pretest-posttest control group design. Students from two classes in one school took part in this research. The environmental literacy instruments are arranged by adopting and modifying problems from the MSELS (Middle School Environment Literacy Survey). Data was collected from 64 students divided into experiment class and control class. Data analysis uses statistical data analysis and impact effect (effect size). The results showed that there was a significant difference from the enhancement of environmental literacy of the control class and experimental class after treatment was given, whereas based on the size of the impact it has the value of the big categorical effect size. Therefore, integrated science worksheet of integrated type is effective to enhance students’ literacy ability.
Using argument-driven inquiry to promote students’ concept mastery in learning global warming
Authors: Salsabila E R , Wijaya A F C , Winarno N , Hanif S 
Published: November 2019

Abstract
The process of learning science in some schools is still in the form of direct transfer from teacher to student. The learning process will be meaningful if the students involved and explore more in building a concept. The aim of this study is to investigate the impact of Argument-Driven Inquiry on students’ concept in learning global warming. The method that is used in this research was quasi-experiment. The study used two classes with one experimental group that used Argument-Driven Inquiry and one control group that used Inquiry-based Learning. The population of this study is seventh-grade students in one of Secondary School in Bandung, Indonesia. The sample is chosen by purposive sampling technique. The participants consist of 52 students from the experimental group and the control group. Each group consists of 26 students. The result of this study shows the improvement of students’ concept mastery in the experimental group is obtained as 0.45 and for the control group is 0.28. Based on the result, Argument-Driven Inquiry gives the better impact in improving students’ concept mastery. Argument-Driven Inquiry can be considered as one of the teaching models that can be implemented in Junior Secondary School.
Factors influencing pre-service science teacher’s GPA on bilingual science teacher education program
Authors: Nugraha I 
Published: November 2019

Abstract
The needs for English speaking teachers in major cities continue to rise along with the increasing number of multicultural students due to population growth. The challenge to fulfil the need has an implication with how the teachers for the future are selected and prepared. This study seeks to explore the possible effects of gender, origin, school type, entry qualifications (Test of English as a Foreign Language/TOEFL) score on student performance (Grade Point Average/GPA) in a bilingual science teacher education program in Indonesia. This study was a cross sectional survey study in first year students who enrolled science teacher education program. The study employed of a sample of (N=62) of a first-year student enrolling science teacher education program. The results from Path Analysis via regression to predict factors influencing student’s GPA scores posited that there is no direct effect of student’s origin on GPA and TOEFL has a direct effect on GPA. From this study, the recommendation is to conduct a follow up program on bilingual science teacher program to improve students TOEFL scores because TOEFL score has a direct effect on student’s GPA.
Smart edu design as a 21st century learning system innovation in optimizing one of the roles of universities
Authors: Zulkarnaen R H , Setiawan W , Rusdiana D , Muslim M 
Published: November 2019

Abstract
The development of science and technology is closely related to the quality of higher education. Science and technology innovation is used as a tool to empower communities so that they can develop sustainable development. The survey results at one of Indonesia’s private universities showed the low role of universities in schools as their environment. The progress of science in universities is very fast but different from the situation in the environment. This indicates an imbalance in the development of knowledge that occurs in universities with schools. Based on the results of a literature study, the smart edu design is used as an alternative solution in this regard. Smart edu is a managerial learning system innovation adapted from the smart city concept. Features in this program allow students, lecturers and teachers in the field to interact with each other. Students can assess the problem without having to go to the field on the other hand the teacher can assess the solution which is the result of learning between the student and the lecturer. Thus the learning transparency can be built through this system so that the inequality of knowledge development can be overcome.
The literacy of physics concepts on petroleum exploration: A case in West Java
Authors: Rochman C , Novia A , Nasrudin D , Malik A , Dirgantara Y , Rokayah  , Hermita N , Muslim  
Published: November 2019

Abstract
Since the beginning of the 19th century, petroleum began to be explored in Indonesia which was pioneered by the Dutch which can be further explored by the Indonesian nation. This shows that at that time the nation of Indonesia has started literate. But now most of the Indonesian people are allegedly lacking to understand how the process of petroleum exploration. Based on these assumptions this study aims to obtain exploration literacy data in the area of Bekasi based on physics concepts in learners. Participants of this study are learners from high school are close and far from the location of petroleum exploration. The research method used will be pragmatic explorative. Data collection tools are literation questions consisting of processes, concepts, contexts, and attitudes toward petroleum exploration and interview guidelines. The results showed that the average literacy of the physics concept of students in the low category. This study recommends the need for enrichment materials on petroleum exploration based on local wisdom
The Improvement of mathematical generalization reasoning of university students by concept attainment model
Authors: Angraini L M , Kusumah Y S , Dahlan J A 
Published: November 2019

AbstractThis study aims to look for the improvement students of university on mathematical generalization reasoning by concept attainment looked from overall, Prior Mathematical Knowledge (PMK) and interaction between learning models and PMK toward mathematical generalization reasoning. This research is designed by Quasi experiments. The one of State Islamic Universities is the place of this research. This research used Kolmogorov-Smirnov test, Levene test, t-test, two-way for analysing the data. The results of this study are: (1) The students’ improvement on mathematical generalization reasoning who taught by concept attainment model is better than those who taught by conventional learning looked from overall; (2) There is interaction between learning models and PMK toward students’ improvement on mathematical generalization reasoning.
Mathematical connection ability of deaf student in completing social arithmetic tests
Authors: Leton S I , Wahyudin  , Darhim  
Published: November 2019

Abstract
This study aimed at exploring the mathematical connection ability of grade 8 deaf students in completing the social arithmetic test. This was a qualitative research with case study and grounded theory design. The data were collected by test, interview, observation, and questionnaire. Subjects of the study were six students who were purposively chosen based on the characteristic of language and speech, intelligence, and social emotion and were taken from three different schools, namely: SMPLB Karya Murni Ruteng - NTT, SMPLBN Semarang and SMPLB Don Bosco Wonosobo. The result of work and interview analysis showed that mathematical connection abilities of deaf students in completing social arithmetic test are as follows; (1) in understanding the problem, the deaf students tended to represent the problem by creating a mathematical model, statement, and concrete objects. (2) in making the initial plan to complete the problem, the deaf students tended to use media associated with a given problem. (3) If deaf students could solve the problem, they tended to resolve it by enumerating, substitution, and tinkering with concrete objects.