bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparison of Real Object and Blended Learning towards Students’ Metacognitive Knowledge
Authors: Musyaddad A. , Suyanto S.
Published: December 2019

This study aims to compare the effectiveness of real object-based learning and blended learning towards students’ metacognitive knowledge in ecosystem material. This research is a quasi-experiment using a pretest-posttest comparison group design. The population of this study was all students of class X in Bantul Public High School 1 and Bantul Public High School 2. The sample of this study was class X MIA 3 students as experimental group 1 and class X MIA 6 students as experimental group 2 in Bantul Public High School 1 and class X MIA 4 students as experimental group 1 and class X students MIA 6 as experimental group 2 in Bantul Public High School 2 which is determined through cluster random sampling. Data collection techniques in this study used tests and questionnaires. The research data analysis technique uses One Way ANOVA tests to determine the effect of real objects and blended learning on students’ metacognitive knowledge. The results showed that the two learning methods did not have a significant effect on students’ metacognitive knowledge, but blended learning had a higher average increase in metacognitive knowledge than real object-based learning.
Developing A Learning Continuum on Ecological Aspect from Elementary to Senior High School Based on The Opinions of Biology Education Experts
Authors: Mendala  , Subali B. , Paidi
Published: December 2019

This research uses survey method aiming to investigate the opinions of biology education experts toward the teaching and the assessment of ecological aspects previewed from the level of competency and characteristic of specific pedagogical materials in order to develop the learning continuum of ecological aspects from elementary to senior high schools was conducted in 2018-2019. The population used in this research was hypothetical population which consisted of the all experts of biology education who taught in public and private universities in Indonesia. The sample used in this research was convenience sample consisted of 85 experts of biology education who taught at 18 public and private universities in Yogyakarta, Central Java, East Java, West Java, and Jakarta determined by using purposive technique. The instrument used was confirmatory assessment questionnaire learning continuum based on mastery of ecological aspects which has been arranged by Subali et al. (2016) and the validty was well examined through the focus group discussion activity by 3 lecturers of UNY and 5 lecturers of UNS. The result of this research showed that learning continuum of ecological aspects according to the biology education experts’ opinion, start be taught and assessed in the fourth and fifth grade of elementary school with the competency level C1 and C2. Then, it will be continued to the higher level in seventh grade of junior high school with the competency level C2 and tenth grade of senior high school with the competency level C3.
Teacher’s TPACK Profile: The Affect of Teacher Qualification and Teaching Experience
Authors: Antony M. K. , Paidi  , Subali B. , Pradana S. P. , Hapsari N. , Astuti F. E. C.
Published: December 2019

The 21st century is the era of technology and digital. The 21st century affects all aspects of life, regardless education. This is clearly the teacher must improve their ability to master ICT in learning. The aim of this study was to determine the affect of teacher qualifications and teaching experience on biology teacher’s TPACK in the Magelang City. This was a survey research. The data collection technique uses TPACK test instruments from Paidi & Subali (2018). This research was conducted in all public secondary schools in the Magelang City, Central Java. Population in this study was hypothetico population. The sample in this study were 14 high school biology teachers in Magelag City. The analysis of data was two-way ANOVA, with provisions p <0.05, which means that there is a significant variable influence on TPACK implementation. This finding reveals that teacher qualifications and teacher teaching experience have Sig. score p <0.05. In conclusion, there was a significant affect of teacher qualifications and teaching experience on biology teacher’ TPACK.
Power law fluid model on wave mitigation, 2D simulation using smoothed particle hydrodynamics
Authors: Iryanto  , Bunga M S , Mustamiin M , Magdalena I , Erwina N
Published: December 2019

This article is focused on numerical modelling to describe influence of coastal vegetation in wave mitigation. The model based on Navier-Stokes equations with stress tensor written in power law model. Numerical approach used to solve the problem is SPH (Smoothed Particle Hydrodynamics). Three numerical simulation are conducted; plane Couette-Poiseuille flow, wave mitigation on flat bottom, and wave mitigation on incline bottom. The first simulation shows that our numerical results are in good agreement with analytic solution provided in [13]. The second simulation shows that existence of the coastal vegetation reduce the wave amplitude. Whereas the last simulation shows that the vegetation reduce the run up height. Further, the power law constant influences how high the run up.
What Difficulties that Students Working in Mathematical Reasoning Questions?
Authors: Zaini A H , Retnawati H
Published: December 2019

Reasoning skill plays an important role in developing all other mathematical skills. However, the results of subhan’s research (2017) inform that students are still weak and have difficulty in solving mathematical reasoning questions. Therefore, a study to analyze students’ difficulties in solving reasoning questions should be conducted to overcome this problem. Participants in the study were 15 of the 25 public high school students in Bantul district of Yogyakarta who had completed mathematical reasoning questions. They were deliberately chosen because when they completed mathematical reasoning questions from 25 students only 15 students completed mathematical reasoning questions in their entirety. The instruments of mathematical reasoning are as many as five questions in the class XI line material that has been tested for quality.The analysis was performed using types of difficulties adapted from procedure Newman which includes (1) reading, (2) comprehension, (3) transformation, (4) process skill, and (5) encoding. The results of the study indicate to encoding difficulties of 37.93%, comprehension difficulties of 24.14%, transformation difficulties of 19.54%, and process skill difficulties of 18.39%.
Why are mathematics teachers advised to use blended learning in the learning process?
Authors: Nuri Bulan
Published: December 2019

The success of mathematics learning is strongly influenced by the initiative and strong ability of educators to implement the learning that supports the achievement of the goals of mathematics learning. An effort to help provide an overview to the teacher to find a solution in choosing a learning model that can be applied in mathematics learning, this research was conducted. Focusing on the results of implementing blended learning in all possible learning programs with varying levels of education, 11 relevant articles were obtained to answer the formulation of this problem. The results obtained that the use of blended learning is very possible in mathematics learning. This is based on the results of research relating to the implementation of blended learning which has the potential to improve learning outcomes, activity, interest, motivation, understanding and even provides space for communication skills, teamwork, independence, and student achievement.
The Types and Factors of Error of Elementary School Students in Solving Mathematical Word Problems: An Analysis Using the Fong’s Method
Authors: Ramdhani Putri Hikmah , Bondan Widjajanti Djamilah
Published: December 2019

This research aims to identify types of error and factors that cause 6th-grade elementary school students in rural and urban areas to make errors in solving mathematical word problems based on Fong’s Schematic Model for Error Analysis. This research is a survey with a quantitative approach. The research population is all of the 6th-grade elementary school students in Kebumen, Jawa Tengah, Indonesia, totaling 1.928 students. The sample was 522 students consisting of 316 students from urban areas and 206 students from rural areas. The instrument of data collection is an essay test in mathematical word problems form. The instrument is declared valid by the content and construct validity. The instrument reliability coefficient is 0.83. The results of the study show that 6th-grade elementary school students in the urban area make errors incomplete schema with errors (E5) category while rural area students make errors in the category of irrelevant procedures (E2) and complete schemes with errors (E5). Furthermore, the cause of 6th-grade elementary school students in urban areas to make mistakes is a language factor, while in rural areas students make language and operational factors simultaneously.
Why is Mathematical Representation Difficult for Students?
Authors: Saifiyah S , Retnawati H
Published: December 2019

Mathematical representation is one of the mathematical skills that can help students present mathematical problems in various forms. However, students often face difficulties in doing so. This study aims to investigate the causes of difficulties faced by students in solving mathematical representation questions on trigonometry of the 10th grade. This is a qualitative case study. Data were collected both by documentation of research results in the form of 6 essay questions on mathematical representation and by interviews. The research participants were 10 high school students in the 10th grade of science program in Cirebon Regency, West Java, Indonesia. Through this case study, found the causes of difficulties experienced by students in solving mathematical representationquestions. Most difficulties (10 students) occurbecause students cannot represent mathematical expressions/symbol to solve questions in the form of images. On the other hand, the least difficulties (6 students) occurbecausestudents cannot using image representation to solve written text questions.
Improving Students’ Mathematical Literacy Skills Through Multiple Intelligences Approach in Problem Based Learning
Authors: Arrum Putri Dini , Bondan Widjajanti Djamilah
Published: December 2019

This literature study was focused on Multiple Intelligences approach in Problem Based Learning to improve Students’ Mathematical Literacy Skills. There are some relevant researches to describe Multiple Intelligence approach in Problem Based Learning and improve mathematical literacy skills. Now, the implementation of mathematics education should emphasize how the concepts learned by students can be applied in the real life context. This means that students are expected to not only able to solve problems at school, but also the problems outside of school. This ability is called mathematical literacy skills. The implementation of Problem-Based Learning methods can be applied by teachers to be able to improve students’ mathematical literacy skills. Problem-Based Learning is a student-centered learning method in which students actively participate in discussion groups where they discuss problem solving strategies. However, not every student is logically intelligent. Therefore, the implementation of Problem Based Learning must be combined with multiple intelligence approaches that can enhance each type of students’ intelligence.
Body posture and biomechanics in women after mastectomy
Authors: Lopera-Muñeton C , Valencia-Legarda F , Bedoya-Bedoya O M , Correa-Castaño D , Páramo-Velásquez C A
Published: December 2019

Breast cancer is the most frequently diagnosed cancer among women. Breast cancer has shown survivorship rate improvements due to technology, early diagnosis and better treatments than before. As breast cancer survivors are living longer, there has been greater focus on understanding the side treatment effects. Women following mastectomy displayed several postural and biomechanical alterations. The major problem in women after mastectomy, besides upper limb dysfunction, are disorders in the trunk area, specially the thoracic kyphosis, which has an influence on the formation of functional disorders in the median part of the spine. The current research describes the postural and biomechanical alterations after mastectomy in breast cancer patients and review the evidence regarding the possible effect of external prosthesis in corporal biomechanics and functionality. Results showed a tendency of muscle imbalance and shoulder and neck asymmetry.
Serious game for real-time brain-computer interface training
Authors: Vega I M , Adarve C A , Villar-Vega H F , Páramo C A
Published: December 2019

This article presents the development of the serious game PROEZA, for training users of a brain-computer interface system for control a hand prosthesis. The document describes the integration of electroencephalogram signals captured by an Emotiv Epoc+ headband, with the Unity video game engine. Also, it is presented how control commands are generated for the video game and for a handheld prosthetic device from these signals, basis of brain-computer interface systems. In addition, a protocol for validate the skills of the users to control the signals of the brain-computer interface system is proposed, based on evaluations before and after to training in PROEZA. The experimental results, after tests carried out on 2 users, show that the proposed protocol promises to be an appropriate strategy to evaluate the ability of users to control the brain-computer interface system and opens up the possibility to develop multiple physical and neuro rehabilitation applications using of serious games.
Design of a vegetable production model: Z-farming
Authors: López A , Aguilar M , Vélez J S , Pineda E F , Ordoñez G A
Published: December 2019

Currently, climate change is a limiting factor in agriculture, due to the changes in periods and intensity of rainfall, extreme temperatures which generate economic losses and shortages of food. In addition to this factor, population growth and migration to the cities establish the need to seek strategies to guarantee food security and sovereignty, through the so-called urban gardens. From this concept comes a new and visionary subtype of agriculture called Z-farming, which includes the production of food in vertical environments, without using soil and available in open spaces close to cities or completely closed. The “Semillero de Investigación en Tecnología Electrónica Aplicada, Centro de Biotecnología Industrial, Servicio Nacional de Aprendizaje, Palmira”, developed an automated system design for plant production, which aims to raise awareness about food production in small spaces, in order to provide a tool for food production. The design includes the improvement of product characteristics with emphasis on shape, function, and use, with a priority focus on the end user. The project aims to develop a prototype of an automated plant production system as a strategy for innovation and research in sustainable agriculture.
Implementation of a technological, information, and communication tool for project management in the network of Tecnoparque, Colombia
Authors: Castro-Maldonado J J , Londoño-Gallego J A , Londoño-Marin S , Patiño-Murillo J A
Published: December 2019

In Colombia, the development of technology-based projects is being promoted and encouraged. In this sense, different institutions, both private and governmental, allocate a large amount of technical and financial resources to develop or contribute to the development of such initiatives. However, in entities such as the “Red de Tecnoparque Colombia del Servicio Nacional de Aprendizaje”, strategies that allow managing and evidencing the activities developed by each of the projects carried out in the network had not been implemented. Therefore, no information support allowed to measure or sustain the technological maturity of the projects gestated. Thus, in “Tecnoparque Nodo Medellín”, a software platform was developed to register and manage the entire development path of technological projects. Also, the platform provides management indicators and a repository of evidence to use at the national level, allowing monetization of the activities of support in Investigation and development of the “Red Tecnoparque” in Colombia.
Management context of entrepreneurship in engineers and architects in Tachira, Venezuela
Authors: Garmendia Mora J C , Barrientos Monsalve E J , Castro Maldonado J J
Published: December 2019

This article arises from the research in which one of its objectives was to characterize the entrepreneurs of the small and medium industries of Tachira, Venezuela in terms of their managerial competencies, developed under the qualitative approach, having these entrepreneurs as key informants. The interview and field notes were used as techniques for data collection. Today the entrepreneurs of the construction sector are mostly engineers and architects, graduates of universities in the region, who have the technical skills related to the core of the business, but have shortcomings in other managerial and entrepreneurial skills, so we propose a change in the curriculum study that includes as a longitudinal axis of engineering careers, subjects that allow the internalization of various managerial skills that increase the likelihood of success in future companies.
Development of a generalized proportional integral control strategy for level control in a coupled tank system
Authors: Regino-Ubarnes F J , Gómez-Camperos J A , Ruedas-Rodriguez A F
Published: December 2019

This work presents the analysis and design of a generalized proportional integral control strategy for a level control in a coupled tank system, such analysis is made under the active disturbance rejection. The principle objective is to show the advantages of the control strategy generalized proportional integral as to signals tracking and disturbance rejection, compared to conventional control techniques such as the proportional integral derivative control. To validate the process, the modeling of the system was carried out and with this model simulations were carried out under nominal conditions, applying the two control strategies. It was found that the generalized proportional integral control presented a better performance since it achieves a lower mean squared error percentage than the proportional integral derivative control, even in the presence of disturbances.
Control design using state observation and model reference adaptive systems for a dc motor
Authors: Florian-Villa A E , Patiño-Murillo J A
Published: December 2019

This paper proposes an adaptive control structure involving the integration of a Luenberger observer with a model reference adaptive system. The Luenberger state observation algorithm describes a dynamic system that estimates the state vector of a system under observation. Model reference adaptive system is a technique providing an automatic adjustment of a controller in real-time. The integrated control structure was implemented in the simulation of a first-order system that describes the dynamics of a direct-current motor. The results obtained show the performance improvement to other classic control techniques for these direct-current systems. Simulation results also demonstrate the acceptable performance achieved by the proposed control for systems involving variables without direct measurement. For these cases, it is mandatory to have a good observation of the unmeasured variable and a suitable control structure developed for the overall process.
Manufacture of cellulose acetate membranes and chitosan nanoparticles for the retention of mercury in water
Authors: Castaño Ramirez M , Gutierrez Jimenez D , Palacio Valderrama J C
Published: December 2019

In Colombia, an average of 75 tons of mercury is released annually due to the illegal mining activity of gold, causing natural water sources to be contaminated in regions that collect water through rivers and streams, generating mercury poisoning. Nanochitosan, a biopolymer synthesized at the nanoscale, has shown its ability to retain different heavy metals in wastewater due to its greater availability of amino groups at its surface. In this work, a set of preliminary parameters were identified and established for the development of cellulose acetate membranes with chitosan nanoparticles for mercury retention. Nanoparticles were synthesized by ionic gelation, varying the addition rate of sodium tripolyphosphate. The membranes were prepared by solvent exchange, varying the concentration of polyethylene glycol, the pore-forming agent. Finally, the samples were characterized by scanning electron microscopy and dynamic light scattering. The results showed that there is a proportional relationship between the rate of addition and the size of the particles obtained, while, for the membranes, 11% polyethylene glycol produced a porous network with cellulose acetate fibers inside the pores.
Product design for sustainability: A collaboration example between the public, private and vulnerable community
Authors: Muñoz Pérez L
Published: December 2019

This article shares the working experience of joining private interests with public support and talented apprentices, who come from a social and economic vulnerable area. It takes as an example a project proposed by a private company to design a biodegradable urn produced with local technology, materials and labor to control the cost of production without depending on the market and international currency fluctuations. This project took place in the “Tecnoparque Nodo Cazucá, Colombia” program, in the Design and Engineering area, where the design and manufacturing processes were carried out with the help of local students. It began with the development of the composite material and laboratory tests through a computerized product and production method design, done by Computer Aided Design and Computer Aided Manufacture systems. Finally, a family of containers were produced to dismiss the ashes of our loved ones by allowing their reintegration with the ground minimizing the impact on the ecosystems and generating both, employment and profits. The result was a complex co-creation research and development process that generated a sustainable product, proving that joining private profits, public investments and local talent is possible and can produce positive social, economic and environmental impacts.
The Analysis of Attribution Reduction of K-Nearest Neighbor (KNN) Algorithm by Using Chi-Square
Authors: Danil Muhammad , Efendi Syahril , Widia Sembiring Rahmat
Published: December 2019

Data reduction is one of the applicable techniques used to obtain the reduction representation from the data whose volume is much smaller, but still retains the original integrity of the data. Attribute reduction is a process to identify and eliminate an attribute with irrelevant or excessive values. In this study, attribute reduction was carried out using the Chi-Square Algorithm implemented in K-Nearest Neighbor (KNN) for classifying the objects based on the closest data to the objects.The test was carried out on the Pima Indians dataset with the total of 768 data. The Chi-Square method was used to reduce the dimensions of large datasets and to improve the accuracy of the prediction of the closest K-Nearest Neighbor results. K-Nearest Neighbor using Chi-Square as the choice of features proved to be accurate and effective in reducing data. The results of this study show that K-Nearest Neighbor using Chi-Square as the choice of features was accurate and effective in reducing data without reducing the integrity of the original data and reducing the quality of the information produced.
The Amino Acid of Sandfish Sea Cucumber (Holothuria scabra): Dry Method with Various Feeding Enzyme
Authors: Rahael Kristhina P. , Penina Tua Rahantoknam Santi , Kahfi Hamid Syahibul
Published: December 2019

Sand sea cucumber processing stages require the release of calcium on the surface of the skin, it is necessary for the addition of the enzyme papain from papaya latex to facilitate the process. The purpose of this study is to determine the type and composition of amino acids in dried sea cucumber due to the effect of the enzyme papain from papaya leaves with different methods. The results showed that dried sea cucumbers from the two methods approaches produced the same amino acid profile, even with different composition values. Where for sea cucumber type A obtained 9 essential amino acids and type B, obtained 8 non-essential amino acids. Thus, in order to maintain the amino acid content in dried sea cucumbers, it is better that when boiling sea cucumbers, the water temperature and the slices of papaya leaves to be controlled at a temperature of 500 C ± 50 C in order to minimize damage to amino acids.
Effect Of Groove Infill To The Compressive Strength Of Multiple Groove Concrete Block Masonry Unit Under Uniformly Distributed Load
Authors: Aziz Fauziah , Arshad Mohd. Fadzil , Mansor Hazrina
Published: December 2019

Interlocking concrete block is a new concrete masonry unit that is used in the construction industry. This masonry unit can improve the quality of the construction process; reduce the cost of labor, no need high skill workmanship and speeding the construction time. Normally, the interlocking concrete block masonry unit in the market place was designed in one way interlocking concept only either x or y-axis, shorter in length and low compressive strength value. However, the biaxial interlocking concrete block is a new concept being introduced in this research. Biaxial interlocking concrete block is a block with the interlocking system at both directions. Besides that, this masonry unit is offered the specialty compared to the normal interlocking concrete available in the market place due to its length and the geometry of the groove and tongue. This concrete masonry unit can be used as a non-load bearing wall or load-bearing wall depends on the application of the masonry. But, there is a lack of technical data was produced before. This paper presents a new finding on the compressive strength of biaxial interlocking concrete block masonry unit. Two series of biaxial interlocking concrete block unit namely BICB1 and BICB2 have tested the compressive strength. BICB1 is the masonry unit of a hollow biaxial interlocking concrete block meanwhile; BICB2 is the masonry unit of groove infill interlocking concrete block. The masonry unit sample tested under static compressive load. The results examine that BICB2 is higher in compressive strength compared to the BICB1. This result shows that BICB2 is better than BICB1, especially in load-bearing wall application.
Real Time Catalog of Uniqueness Face Using the CAMShift and Gabor Wavelet Algorithims
Authors: Sindar Ros Maryana Sinaga Anita , Samuel Sitio Arjon
Published: December 2019

Moving image processing uses continuous moving images such as recording live video as a data set. The process of developing a unique database catalog application of student face recognition begins with storing the results of real time recordings of each face. Face tracking uses the CamShift algorithm to identify skin color based on the Hue histogram value. To bring out the special features of a face image that has been convoluted to the kernel, the Gabor Wavelet method is used. 2D Gabor Wavelet kernel which is obtained by modulating 2D sine waves at certain frequencies and orientations with a gaussian envelope. Training data taken from the live video of student activities consists of 30 data sets. Stages start from file conversion - tracking video to multiple frames - RGB-HSV conversion - Calculate Histogram - Face detection and finally face recognition process. If there are similarities with the largest value between querying the face image in the database, the face will be detected. Looping is done to take the face of other students. Video .mp4 is converted to .avi. The results of video conversion are tracked into several frames according to facial movements followed by RGB - HSV conversion, 1-2 minute duration videos produce 40-250 frames. Face recognition successfully identifies moving faces around 80%-90% with skin color detection and 80%-85% with points position detection.
Implementation of Computer-Based Systems in Efficient Credit Acceptance Decisions Applying the Additive Ratio Assessment (ARAS) Method
Authors: Supriyanto  , Mesran  , Kusnady Diding , Weny  , Murtopo
Published: December 2019

The development of computer-based systems, increasingly helping the banking world, in doing work efficiency in a bank. Especially in selecting credit recipients at the bank. This is needed so that the resulting decision can be valued objectively and effectively for management. In processing credit receipt decisions, using an information system known as the Decision Support System (SPK). The selection of credit recipients requires alternatives and criteria so that the information retrieval process can run well. By applying the Additive Ratio Assessment (ARAS) method, decision-makers can produce better calculations. ARAS is a method for decision-based support.
Implementation of Multi-Objective Optimazation on the Base of Ratio Analysis (MOORA) in Improving Support for Decision on Sales Location Determination
Authors: Sutarno S , Mesran M , Supriyanto S , Yuliana Y , Dewi A
Published: December 2019

The location of sales is one of the most important factors, in the success of selling goods. At present, there are many business locations, in the form of new buildings being made which can later be used as sales locations. But in the selection of the sales location, sometimes the business actors do not consider whether the location will be strategic or not. So that the price is relatively cheap, the location of the business will be purchased without considering the position of the strategic sales location or not. To avoid losses for business actors, the application of a decision support system is absolutely necessary. It aims to provide assistance for business actors to produce effective, appropriate and efficient decisions. Decision support systems can use certain methods. In this study, the application of the Multi-Objective Optimization On The Base Of Ratio Analysis (MOORA) method is a simple method in ranking alternative business locations, so it is expected that the use of decision support systems in the selection of sales locations will provide large benefits for business actors.
Intelligent LPG Gas Leak Detection Tool with SMS Notification
Authors: Siddik Hasibuan Muhammad , Syafriwel  , Idris Iswandi
Published: December 2019

Gas is a molecule that is not bound, formless, invisible and can turn into search or solid at certain temperature pressures. LPG gas is one of the needs for industry and household needs, namely for cooking. LPG gas in Indonesia is the cause of many fires, a factor that often causes LPG gas fires is a damaged gas regulator. Therefore prevention and security are needed to minimize fires. Seeing this and given the technological developments, an intelligent Arduino-based device was created that was able to overcome this problem. This tool is equipped with MQ-2, SIM800L, and buzzer gas sensors. In an embedded device the system that can convert input data received from the sensor Mq-2 sensor works to detect propane and butane gas, then the system will send the actual data in the form of short messages (SMS) to the mobile number that has been registered into the system. Besides being able to send SMS the system also emits a sound that is generated from the buzzer
Implementation of Green Building Concept in Office Building Jakarta
Authors: Purbantoro Firma , Siregar Marsul
Published: December 2019

Green Building Concept has become popular in Indonesia. The purpose of this study was to determine the extent to which the implementation of green building principles in Office Buildings. Research Method using a GREENSHIP Rating Tools for existing building which consists of six categories; Appropriate Site Development (ASD), Energy Efficiency & Conservation (EEC), Water Conservation (WAC), Material Resources & Cycle (MRC), Indoor Air Health & Comfort (IHC) and Building & Environments Management (BEM). The results show that implementation the Green Building Concept could also made energy performance more efficient, after Implementing through Retrofitting of the Chiller System, Recycle Waste Water, Replacement of Conventional lamp to Energy Saving LED and also Training and Education to all employees and tenants. From comparing Data research before implementation of Green Building concept in 2014 and after Implementation and retrofitting in 2017 & 2018, found that Savings Cost from electricity bill payments is IDR. 466,803,325.67/month (18%) and roughly will Break Event Point (BEP) for 3.86 Years and Energy Efficiency Index (EEI) from 238.8 kwh/m2/Years to 123.65 kwh/m2/Year
Strategic Planning Information System Using Ward and Peppard Method with Anita Cassidy Method
Authors: Sri Lestari Ninik , Ghea Mahardika Andrew , Sujana Ahmad , Riztria Adinda Nurcaweda , Lie Ie Day
Published: December 2019

The company strategy must be integrated with the preparation of business strategies and IS / IT strategies. In today’s global competition innovation is very much needed. The results of the analysis of the overall identification of the business processes that are very important to be able to map completely applications that will be applied for that support and following the mission and vision of the company that will be able to help produce the most appropriate architecture adapted by the company. Appropriate strategic planning can also minimize costs. To improve efficiency, effectiveness, improve the image and corporate social responsibility, standard principles of Good Corporate Governance (GCG) are required, namely transparency, accountability, responsibility and fairness, and to recognize and protect rights and the obligations of other stakeholders. Strategic information system planning that is in line with the company’s business strategy so that it can be highly competitive. By analyzing Ward and Anita Cassidy’s method, it will produce a portfolio of information systems development applications. Recommendations are given by analyzing the problem using the SWOT method and information needs both internal and external using the ward and Peppard method. The results of the study are the SI business strategy, IT strategy and information system application portfolio and recommendations for the number of costs needed as well as applications that can be implemented.
Analysis of Time Acceleration Costs in Level Building Using Critical Path Method
Authors: Ghea Mahardika Andrew , Fadriani Hetty , Muntiyono  , Afiyah Salamatul , Devira Ramady Givy
Published: December 2019

The multi-story building construction project was carried out according to the schedule at the time of the initial session’s work. There was a delay in the agreement for the receipt of land which caused work to be delayed. The researcher’s aim is to find out the work time using the Critical Path Method (CPM) method, in this analysis the time from the acceleration of the duration obtained from the CPM, so that in analyzing the estimated normal and up-normal costs of labor wages and the estimated amount of the budget due to the acceleration of implementation time. By making direct observations, and interviewing project team members, the data obtained are used to base analysis. Based on the results of the data obtained and analyzed using CPM. The results of the normal duration of work with the CPM method produce 119 working days, the results of the acceleration of the time done by the CPM method obtained 104 working days. Therefore, using labor analysis, the total cost of normal labor costs is IDR 30,901,500.00 and the total up-normal costs of labor costs are IDR 26,037,000.00. So the results of the analysis, save labor costs of Rp.4,864,500.00. Thus, the total normal cost budget is Rp. 1,337,999,697.00 and the total up-normal cost budget is Rp. 1,333,135,197.00.
Morphological Segmentation for Identifying Backbone Area
Authors: Dewita Arimbi Yuti , Lussiana ETP , Madenda Sarifuddin , Hanum Yuhilza
Published: December 2019

Segmentation in images of abdominal CT scan is an important step in the processing and interpretation of medical images. This is not easy, because the organs are close together and the color intensity is similar. Various methods have been developed, but the problem of locating the position of the backbone is still difficult to solve. The purpose of this study is to develop a segmentation method to determine the location of the backbone using a morphological method with a binarization approach. Testing of 11 CT Scan images shows that the method developed can determine the area and position of the backbone. Thus, it can be concluded that the method of backbone segmentation using a morphological method with a binary approach is successfully developed so that it can be applied to the advanced analysis process.
Distance Learning via MOOCs: Improving ESL Learners’ Writing Skills
Authors: Shabani Jasni Nurakhma , Hashim Harwati , Md Yunus Melor , Fatimah Abd Rahman Siti
Published: December 2019

Students nowadays are exposed to technology and they are always interested in learning new things. By incorporating technology as a means of learning, the students would be able to develop interest in learning language and improving their ICT skills. Crossing the line of time and distance and applying the saying that learning could be done anywhere and every time, applying the theory of distance learning, this paper reviews the effectiveness using MOOCs to improve students’ writing skills. Prior research regarding the use of MOOCs and technology, especially in language education and writing skills, is reviewed. Emphasizing on MOOCs as the platform of improving students’ writing skills, this paper explains how MOOCs helps in improving the process of teaching and learning and the importance of self-directed learning.
Beyond ESL Classroom: The Use of MOOC in Enhancing ESL Reading Skills
Authors: Afif Razali Muhammad , Hashim Harwati , Md Yunus Melor
Published: December 2019

Technology is changing the landscape of language learning and is viewed to have a huge potential in enhancing the teaching and learning of English language. Due to the high accessibility of the internet, coupled with the availability of ICT tools in Malaysian schools, it is believed that new methods which can shape new pedagogical techniques could be brought into the Malaysian classrooms. The lessons could then be shaped to become more personalized for the learners’ needs and allowing them to learn on the move. This creates the potential for significant change in the teaching and learning process of English as a second language (ESL) in Malaysia. By looking at the existence and potentials of the Massive Open and Online Courses (MOOC), this paper offers reflections on the benefits that MOOCs can offer to ESL classrooms; specifically, to the development of the reading skills, as well as the constraints that might be faced by the English as a Second Language (ESL) learners when using MOOC. Above all, it also looks at the changes MOOC might bring to the pedagogical aspect of the ESL classrooms; towards both the students and the teachers themselves.
MOOC for Training: How Far It Benefits Employees?
Authors: Rafiq Karmila Rafiqah M. , Hashim Harwati , Md Yunus Melor
Published: December 2019

As the term 4th Industrial Revolution emerges globally, various industries are moving rapidly towards it. Malaysia, one of the developing countries, is also embracing the 4th Industrial Revolution. However, with the rapid development of industries to catch up to the ever-expanding world, the English proficiency of non-native speakers is worrying, especially in the working field. Certain industries provide training for their employees to improve their English for Occupational Purposes (EOP), but traditional training is time-consuming and could not cater to individuals’ needs. This paper aims to identify the benefits of MOOC for employees’ training. The findings discussed the benefits of MOOC. MOOC is indeed beneficial for employees in terms of providing the opportunity for self-paced learning, lifelong learning and professional development at zero cost. However, there is also an interesting finding whereby employers do not want their employees to use MOOC for training because the former does not want private and confidential information of the organization to be publicized. Overall, the benefits will be able to guide and provide insight for educators and researchers as it is important to know what motivates learners to use MOOC for training.
Application of Environmental Awareness and Environmental Management System towards Behavior at Palm Cooking Oil Company, Bekasi City
Authors: Yusuf Amartha Muhammad , Hamzah Udi S , Herdiansyah Herdis
Published: December 2019

Environmental pollution generally occurs because of the behavior of workers who are not environmentally friendly. The purpose of this research is to analyze the relationship of environmental awareness to the behavior of workers of palm cooking oil company; examine the relationship of implementation of ISO 14001 environmental management system to the behavior of workers; analyzing the relationship of implementation of ISO 14001 environmental management system and environmental awareness simultaneously to the act of workers. The results were processed by univariate, bivariate, and multivariate methods. The results of the analysis show a weak and unidirectional relationship between environmental awareness and employee behavior with correlation value (R=0.23). Different results on the ISO 14001 environmental management system with worker behavior. The results show no relationship between the ISO 14001 environmental management system and workers’ behavior with correlation values (R=0.39). While the correlation between environmental awareness and ISO 14001 environmental management system to worker behavior showed a strong correlation with correlation value (R=0.56). The conclusion that can be drawn from the results of the analysis is the awareness of the environment plays an essential role in the behavior of workers in the eenvironment. Corporate programs such as the ISO 14001 environmental management system can not run effectively without the support of environmental awareness.
RAPD-PCR primer selection to analyze genetic diversity of Cinnamon plan
Authors: Lizawati  , Nusifera S , Neliyati  , Alia Y , Antony
Published: December 2019

RAPD is one of the DNA markers that utilize the principle of Polymerase Chain Reaction (PCR) machine which can amplify specific DNA sequences in vitro. The primary selection is made to display the DNA band pattern which can be used to obtain polymorphism information. This study aims to determine the RAPD-PCR primer that can be used to differentiate accession of cinnamon bark in Jambi Province, Indonesia. RAPD-PCR primer selection was carried out by using 100 primers which produces a polymorphic DNA band. Ten primers were identified to produce polymorphic DNA bands for cinnamon bark DNA namely: OPE-6, OPE-20, OPH-7, OPH-14, OPH-19, OPM-2, OPM-5, OPM-6, OPM-16 and OPM-19.
The Antibacterial Activities of Durian Rinds Extract (Durio Zibethinus) Against Propionibacterium acne
Authors: Fitrianingsih F , Soyata A , Wigati S
Published: December 2019

Acne vulgaris is a kind of skin diseases which caused by Propionibacterium acne bacterias. Nowadays, the treatments of acne are still using the antibiotics as a first protocol, but the overuses of this in a long duration can be resistants. Therefore, it is very important to find some candidates of natural products to become antibacterial agents in the acne treatments. One of the natural products is Durian (Durio zibethinus (Linn)), a part of durian which is called rinds of durian known as mesocarpium, it contains a lot of organic chemical compounds, there are alkaloids, saponins, flavonoids, tannins, and phenolics which have antibacterial activities especially in flavonoids. This study was aimed to determine the antibacterial activity of durian rinds extracts to the Propionibacterium acnes bacterias. This study was used as a randomized completed trial design. The test of antibacterial activities uses the dilution method in 96 well plate and diffusion method, then the amount of the colony was measured by colony counter. The treatments were using a series concentrations 2.5%, 5%, 7.5%, and 10%, the negative control using 10% of DMSO and the positive control using clindamycine. The Results showed that the rinds of durian have given the moderates antibacterial activities at the 7.5% concentrations with the MIC value of 5% and the colony number was 67 colonies. Based on this results, it might conclude that the rinds of durian have the potential as an antibacterial agent which was bacteriostatic.
The Effect Oil Palm Fronds Fermented With Prolinas to Milk Production of Dairy Cattle
Authors: Mardalena M , Syarif S , Zubaidah Z
Published: December 2019

Palm oil frond is one of the plantation waste that can be used as animal feed especially in the dry season when green forage became rare. In 1 Ha of plantation land, around 20.000 kg of fresh palm oil frond can be obtained each year. The study aimed to determine the fermentation process between oil palm fronds with prolinas (OPFP) as substitution of corn straw in dairy cattle rations and to see how it affect to milk production of PFH dairy cows. This study used 4 of fourth lactation PFH dairy cattle. The experiments used a latin square design with 4 treatments and 4 repetition. The treatment consisted of P0: forage 55% + 45% concentrate (control), P1: forage 55% (90% corn straw + OPFP 10%) + 45% concentrate, P2: forage 55% (80% corn straw + OPFP 20% ) + 45% Concentrate, P3: Forage 55% (60% corn straw + OPFP 40%) + 45% concentrate. The parameters measured were feed consumption, feed efficiency, milk production and 4% FCM milk production. Data were analyzed by SAS programe. The Differences between treatments were analyzed using Duncan Multiple Range Test.The results showed that corn straw substitution treatment with fermentation of oil palm fronds with prolinas has no effect (P> 0.05) to feed efficiency and 4% FCM milk production but decreasing (P <0.05) the feed consumption and and milk production. The conclusions of this research that the substitution of fermentation of oil palm fronds with prolinas decreased milk production of dairy cattle.
Evaluation of ecosystem quality, comfort, and services of eco-friendly residences in Lowokwaru District, Malang
Authors: Rizkiaditama Dian , Siswanto D , Arisoesilaningsih E
Published: December 2019

This research aimed to evaluate the quality of residential ecosystem at Lowokwaru District, Malang. The research was conducted in five different densities residences namely BCT (Bukit Cemara Tujuh), BHPH (Bukit Hijau & Permata Hijau), BP (Bumi Palapa), GJM (Graha Jati Mulya, and PJ (Permata Jingga) and a traditional residence TW (Tunggul Wulung) as a reference, using a purposive sampling method. In each sampling sites, we observed the quality of vegetation of Green Open Space (GOS), microclimate, geography, comfortable index, and ecosystem services. Data were analysed by PCA and clustered by using PAST 3.0 software. The results showed GOS coverage in all locations met the government standard of Malang City and showed similar performance in comfort, although each residence having varied GOS distribution. House density affected the GOS coverage dominating by non-native trees with C and D stratification. Furthermore, GOS vegetation in BP effectively reduced dust deposition, noise and attracted wild bird visitors such as Pycononotus aurigaster. Besides BP, PJ and GJM became potential eco-friendly residences by planting more native trees species.