Feasibility Aspect Research Articles

The Development of Student Worksheet Based on STEM Integrated Blended Learning to Improve Student's Science Argumentation Skills in the Covid-19 Pandemic Era

The year 2020, until now, is a year that changes all aspects of life. The spread of Covid-19 causes changes in the order in various fields ranging from health to education. The impact of the Covid-19has made students study online using existing devices. This situation needs to be addressed with the development of learning models that follow these conditions. This study aimed to determine the validity, practicality, and effectiveness of STEM-based Blended learning worksheets developed to improve students' scientific argumentation skills. This research uses the ADDIE development model (Analysis, design, develop, implement, and evaluate), which begins with analyzing needs, making student worksheet designs, developing, conducting validation tests, conducting usage tests, and managing data. Data collection uses pretest and posttest instruments consisting of 10 multiple choice questions and five essay questions. Then it was done with the student worksheet Ohm's Law practicum. Data is analyzed using validity tests, paired T-tests to test effectiveness, and questionnaires to test practicality. This research indicates that the student worksheet that was developed was validated with the content feasibility aspect obtained is very valid criteria, the linguistic aspect obtained is very valid criteria, the presentation aspect obtained is very valid criteria, and the graphic aspect obtained is very valid criteria. The results of the practicality of the student worksheet in terms of the results of the student response questionnaires and obtained with very practical criteria. Then, the results of the effectiveness of the student worksheet in terms of the pretest and posttest treatment obtained an average N-Gain value was included in the medium category. Lastly, the student worksheet is feasible and ready to be used as teaching material. In the future, it is hoped that further research related to learning scientific argumentation to train students' argumentation skills in line with technological developments.

Jejak karbon pada tahap operasional agro-eduwisata kota mataram menggunakan pendekatan penilaian daur hidup

Climate change is one of the global issues that require the participation of all stakeholders for handling. In addition, the climate change issue is listed as one of the sustainable development goals (SDGs). The Government of Mataram city, as one of the stakeholders, has committed to involve the climate change consideration into its planned program, including the development of agro-edutourism facility. This study aims to calculate a carbon footprint of agroedutourism facility during the operational stage in order to implement the Greenhouse Gas (GHG) emission reduction strategy. The method used is a life cycle assessment approach with ReCiPe analysis, and the functional unit is an annual carbon footprint per m2 area of agro-edutourism. The study showed that the total carbon footprint per m2 was 2.88 KgCO2-e per annum with the primary environmental hotspot was fossil fuel utilization in energy source of agro-edutourism facility (Electricity State-own Company) and visitor vehicles. Therefore, some strategies could be applied for reducing the carbon footprint, such as increasing the utilization percentage of renewable energy (solar panel), using energy-saving bulbs, preparing the facilities for zero-emission vehicles, and applying the green building concept or design. Further research is required to assess the energy management concept from the technical feasibility aspect and economic aspect for complimenting this study.

Pengembangan E-Modul Kimia Berbasis Proyek pada Materi Larutan Elektrolit dan Non Elektrolit

This study aims to (1) to determine the results of the analysis of chemistry teaching materials on electrolyte and non-electrolyte solution materials used in schools according to BSNP standards, (2) to develop e-modules for electrolyte and non-electrolyte solution materials according to the BSNP eligibility criteria and have been based on projects, and (3) To determine student learning outcomes after being given project-based e-modules. The population in this study were all students of class X MIA SMA Negeri 1 Deli Tua, totaling 6 classes. The sample in this study was class X MIA 5 who was taught with a project-based chemistry e-module. The instrument used is an e-module feasibility questionnaire according to the BSNP standard, a learning outcome test of 20 questions that have been tested valid. This study uses the method and media development (R&D) with the ADDIE model. The ADDIE model has several stages, namely Analysis, Design, Develop, Implementation, and Evaluation. Where the results of the feasibility analysis of the content feasibility aspect of the e-module are 3.82; language eligibility is 3.83; The feasibility of presenting 3.81 and the feasibility of graphics 3.77 means that the teaching materials from the trial are very valid based on the BSNP. The average student learning outcomes who are taught project-based e-modules in one class are 78.8095. The results of the right-hand t-test with t count = 4.147> t table = 2.086. Thus the criteria for testing the hypothesis t count > t table are met. This means that Ho is rejected, Ha is accepted, so it can be concludedthat the project based chemistry learning e-module developed is better in improving students' chemistry learning outcomes in electrolyte and non-electrolyte solution materials.

Pengembangan Bahan Ajar Berbentuk Modul Geometri Analitik Ruang bagi Mahasiswa Program Studi Pendidikan Matematika FKIP UNBARI

Spatial Analytical Geometry is one of the compulsory subjects in the S1 Education curriculum of the Mathematics Education Study Program. Learning Geometry Analytical Space is expected to be able to create a paradigm for students to use mathematics in everyday life. The purpose of this study was to develop teaching materials in the form of Spatial Analytical Geometry modules and to determine the quality of teaching materials in the form of modules developed based on the feasibility aspect. This research is a development research using the Research & Development method of the Borg and Gall model which has been modified by Sugiyono, namely the stages: (1) Potential and Problems, (2) Collecting Data, (3) Product Design, (4) Design Validation, (5) Design Revision, (6) Product Trial, (7) Product revision. The results of this study indicate that at the product validation stage carried out by material experts on the aspect of content feasibility, an average value of 3.3 was obtained with the criteria of "very good" and the linguistic aspect obtained an average value of 3.25 with the criteria of "good".Media experts in the graphic aspect obtained an average score of 3.3 with the criteria of "very good" and the linguistic aspect obtained an average score of 3.15 with the criteria of "good".Meanwhile, for linguists in the linguistic aspect, an average score of 3.3 was obtained with the criteria of "very good".Student responses to teaching materials in the form of modules in small group trials obtained an average score of 3.35 with the criteria "very interesting" and 3.5 large group trials "very interesting". This means that the teaching materials in the form of spatial analytic geometry modules produced in this study are suitable for use in learning.

A review on the use of passive flow control devices as performance enhancement of lift‐type vertical axis wind turbines

AbstractThis article provides a comprehensive review about passive flow control devices (PFCDs) implemented in lift‐type vertical axis wind turbine (LVAWT), focusing on the underlying flow physics mechanisms and to what extents they can improve the LVAWT performance. In addition, some novel concepts that can be potentially implemented in future are also presented. Based on literature review, it is observed that PFCDs can enhance the power generation of LVAWT up to 172.73% compared with a clean LVAWT. However, this significant improvement still needs to be evaluated carefully by considering the economic feasibility aspect, because PCFDs can increase the design complexity, weight penalty and manufacturing cost of LVAWT. Furthermore, it is essential to design and evaluate the effectiveness of PFCDs using a full VAWT configuration by considering the blade rotating effects and blade‐to‐blade interactions. Finally, evaluation of PFCDs needs to be performed at all ranges of tip speed ratios (TSRs) operation conditions, as there are clear evidences on the correlation between LVAWT performance and different range of TSRs.This article is categorized under: Sustainable Energy > Wind Energy

Assessing the sustainability of municipal solid waste management in China 1980 - 2019

The sustainability of the Municipal Solid Waste Management (MSWM) system is one of the crucial issues for achieving sustainable development goals. However, current studies only focus on evaluating certain aspects of the MSWM system at cities level, and it lacks a comprehensive overview of the sustainability of the MSWM system at the national level in China. In addition, many studies only focused on the MSWM system in the urban area, whereas the MSWM system in counties has not been systematically reported in China previously. In this work, we developed an indicator system based on the widely accepted “Wasteaware” benchmark indicator framework, consisting of four dimensions (resource value, environmental impact, economic feasibility, and social aspect) to assess the sustainability of the MSWM system in China from 1980 to 2019. It was found that the MSW generation per unit of living expenditure, recycling rate, and landfill disposal rate dropped from 87.8 g CNY−1 to 16.5 g CNY−1, 20.0% to 17.0%, and 100.0% to 53.3%, respectively, over the last four decades. The controlled disposal rate of MSW increased from 6.9% to 98.5%, while per capita GHGs emissions from the MSW sector rose by 2.5 times. Per capita financial input intensity increased 35 times, and the social score elevated from 8 to 83. It was found that the score of MSWM sustainability decreased from 26 to 12 first in 1980–1994, then rose to 82 from 1994 to 2019. However, the financial input efficiency of MSWM in China showed a sharp decline for both resource value and environmental impact performances, from 5.5 to 0.12 (score) billion CNY−1 and from 6.2 to 0.06 (score) billion CNY−1, respectively. Although the facilities, financial investment, and regulation of the MSWM in China were primarily improved, there are still challenges in reducing MSW generation, promoting recycling, and mitigating greenhouse gas emissions. Policy implications were put forward based on the assessment results.

Pengembangan E-LKPD Berbasis Inkuiri Terbimbing Menggunakan Aplikasi Adobe Acrobat 11 Pro Extended Materi Kesetimbangan Kimia

ABSTRACT This study aims to produce a Guided Inquiry-Based E-LKPD using the adobe acrobat 11 pro extended application on the chemical equilibrium material developed which is already valid based on aspects of content feasibility, pedagogics, characteristics of the guided inquiry model, language and graphic aspects. The type of research used is research and development using the ADDIE model. The results of material validation from each aspect are as follows, the content feasibility aspect is 92.18%, the pedagogic aspect is 90%, the characteristic aspect of the guided inquiry learning model is 87.5%, the language aspect is 90.62% and the graphic aspect is 93.75% with valid category. The results of media validation from each aspect are as follows, the size aspect of the E-LKPD is 93.75%, the cover design aspect of the E-LKPD is 90.62% and the content design of the E-LKPD is 93.18%. The results of the one-on-one test analysis show that students with high, medium and low abilities have a fast to long time span according to their abilities. The results of the teacher's response obtained a value of 93.55% with attractiveness 95.83%, effectiveness 93.18% and practicality 91.66% with good criteria. Student responses obtained a value of 91.5% with an attractiveness of 92.12% and an ease of 90.75% with good criteria.

Development of teaching materials like PISA for physics mechanical wave topic in high school

This study aims to describe the validity, practicality and effectiveness of physics teaching material like PISA. The method carried out in this study uses Research and Development (R&D) development research using the ADDIE model consisting of 5 main phases or stages, namely 1) Analyze (Analysis), 2) Design (Design), 3) Develop (Development), 4) Implement (Implementation), 5) Evaluate (Evaluation). Physics teaching materials developed in the form of teaching materials like PISA. The subjects in this study were students of class XI MIA I SMA Swasta Dharma Pancasila Medan. The results of the study obtained that the validity of teaching materials to the material by the validator obtained results from the content feasibility aspect of 88%, the language feasibility aspect by 86% and the presentation feasibility aspect by 87% while the validity of the teaching materials to the media by the validator obtained a result of 87% so that it met the category valid. The results of the effectiveness test show that teaching materials are effective for use in the learning process with a percentage value of 82% with a very effective category. The practicality of teaching materials in the very practical category of student responses obtained a percentage value of 90%. This shows that the physics teaching materials like PISA have met the valid, practical and effective criteria. And there is an increase in student learning outcomes in the good category after applying high school physics teaching materials like PISA.

Android Application-Based Basic Elements Model of Rhythmic Gymnastics

This research aims to develop a product in the form of an android application that can be used as a new method of learning and independent training for the basic elements of rhythmic gymnastics. The Research and Development method was used in this study. The research steps were adapted from Sugiyono's research steps which consisted of 13 steps, but the researchers only adapted 10 steps according to the research objectives. Small group trials were conducted at Gymnastics Local Club on 8 children practicing rhythmic gymnastics, while the main field trials were carried out on 15 children practicing rhythmic gymnastics at local clubs. The research instruments were a scale questionnaire and evaluation sheets. Evaluation result data were in the form of descriptive quantitative and qualitative. Quantitative data were collected from assessments by means of a product trial questionnaire. Qualitative data were obtained through expert validation and trial activities in the form of input, feedback, criticism and suggestions. Quantitative data were analyzed using descriptive quantitative analysis. The results of the assessment obtained through expert validation and trials were processed in percentages. The percentage results were then elaborated using the qualitative method. The assessment for the feasibility aspect of the model of basic element of android application based-rhythmic gymnastics was seen from the results of the validation by material experts at 97.5% (strongly agree) and media experts at 96% (strongly agree). The results of the main field trial showed an assessment score at 98.16% (strongly agree). The product was a model of media for the basic elements of android application based-rhythmic gymnastics. The product was made of several basic elements of rhythmic gymnastics motion pictures and videos (slow motion) supported by brief information, a brief history of gymnastics, videos of elite championships, athletes' achievements, and gym club contact support. The selection of motion elements was based on FIG's Code of points in 2017-2020.

Perancangan Trainer Elektronika Digital Sebagai Media Pembelajaran Teknik Listrik Politeknik Unisma

One of the main subjects in the Electrical Engineering Department at Polytechnic of Unisma Malang is the basics of digital electronics course. The main problems that have been encounters in studying digital electronics course are the lack of trainer modules that support the learning process. The main learning material always encounters some problems, which is becoming the main goal for this research to reduce the problems in the digital electronics learning process, by creating a trainer module to support the course. The Research and Development (R&D) method is used as the main method for the data retrieval, which greatly affects the stages for creating the trainer module. There are 4 stages: (1) Defining, (2) Design, (3) Development, and (4) Realization, that produce the trainer module that consists of 3 logic gate modules (OR-gate, AND-gate, NOT-gate), which supported by 4 other modules. They are the Power Supply module, Input block module, and 2 Output Modules (LED module and 7-Segment Module). The test was carried out by involving 5 lectures and 8 students, which include the feasibility, observation, and the impact aspect. The result is magnificent, it shows 86.4% for the feasibility aspect, 93.75% for the observation aspect, and it raises the quality of the study outcome from 75% to 94% which show how good the impact of the trainer module for support the learning process for the digital electronics course.

Feasibility aspect in utilizing spent bleaching earth waste for briquette, fertilizer and oil recovery

Spent bleaching earth (SBE) is a bleaching agent used in the refining process for crude palm oil, was previously classified as hazardous and toxic waste because it contains oil residues that reach 20 – 40%. The potential for SBE waste is very high, reaching 4.8 million tons per year, which makes its utilization very important. Due to the large amount of SBE potential waste and its oil content, this waste can be utilized in recovery oil, fertilizers, and briquettes. There have been many SBE utilization studies on a laboratory scale but not equipped with appropriate feasibility aspects for its application in industry. The aim of this study were to obtain technical and economic parameters in utilization of SBE waste. Literature study and mass-energy balance calculation were conducted to obtain basis design operating parameters and production capacity of each utilization. Then, economic analysis with chemical plant cashflow method were calculated to obtain internal rate of return, pay-out time and benefit/cost (B/C) ratio. From this study, it is shown that utilization waste SBE for briquette, fertilizer and oil recovery was feasible with the highest B/C ratio 1.81 for briquette.

Ethical and Legal Issues in Psychotherapy.

Ethical and Legal Issues in Psychotherapy.

Feasibility of Radio-Guided Surgery for Neuroendocrine Tumours Using 99mTc-HYNIC TOC

Introduction and aim: Intra-operative localization of small functioning pancreatic neuroendocrine tumours and liver metastases can be challenging. We here demonstrate the feasibility, technical protocol, utility and safety aspect of intra-operative tumour localization in using 99mTc-HYNIC-TOC. Materials and methods: 6 patients diagnosed with GEP-NET with or without liver secondaries were included in this study (5 males, 1 female). 3 patients had primary NET of the pancreas of which 2 patients had in additional liver metastases, 1 patient had distal ileal NET with loco-regional nodes and liver metastases, 1 patient had primary nodal gastrinoma with no evidence of any pre-operative lesions in duodenum/pancreas, 1 patient had bilobar liver secondaries from metastatic rectal NET. All patients were injected with 925-1110 MBq of 99mTc-HYNIC-TOC IV and surgery was done after 18-20 hours later on day 2. Intra-operative tumour localization was done using a hand-held high sensitivity gamma probe. Results: Total 23 lesions were localised intra-operatively and confirmed on histopathological as NET. Of these, were 10 in the liver, 3 in pancreas, 9 in nodes and 1 in the distal ileum. Of these 23 lesions, 19 were localized pre-operatively on imaging and by non-aided visualization by surgeon and 4 lesions (17%) were exclusively seen on intra-op localization using probe. These included 2 nodes and 2 liver lesions, all of which measured less than 1cm. Conclusion: Radio-guided surgery gastro-entero-pancreatic neuroendocrine tumours using indigenous 99mTc-HYNIC-TOC is safe and feasible in clinical setting and promises to improve precision of intra-operative localization of lesions in liver and pancreas.

Pengembangan Media Pembelajaran Website Matematika di Kelas 5 SDN Cikoko 01 Pagi Jakarta

This research was conducted with the aim of producing a mathematically valid and effective learning website for building mathematical spaces in terms of implementation to increase the learning outcomes of 5th grade students of SDN Cikoko 01 Pagi. This research was conducted using the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The website for learning to build a mathematical space gets the final percentage result from media experts with an average of 94% and the category is very valid or very feasible to use. The assessment given by students in the limited-scale trial obtained gets the field-scale of 89% and the category is very good. The use of the mathematics building learning website in spatial building materials has been proven to meet the feasibility aspect for use in learning, and has succeeded in increasing students' learning outcomes of student scores increased by 17.8% from the average pre-test score (before using the media) of 77.2% with the number of students who passed the KKM as many as 8 out of 24 students, to 95% in the post-test scores (after using the media) with a total of 24 out of 24 students passing the KKM.

DEVELOPMENT OF INTERACTIVE MEDIA BASED ON AUTOPLAY STUDIO FOR LEARNING MUFRODAT ARABIC

A challenge as well as a new breakthrough for Arabic language teachers to change the mindset that Arabic lessons are easy lessons to learn. One of them is by implementing learning media based on Autoplay Studio in Arabic language learning. The learning process by utilizing this media is not only fun, interactive but also challenging because it will have an effect on increasing the competence of students and the creativity of educators. Arabic learning at the SMP/MTs level is directed at mastering language skills (maharah al-lughah), which includes 4 skills including: 1). listening (maharah al-istima '); 2). speaking (maharah al-kalam), 3). reading (maharah al-qiraah), and 4). writing (maharah al-kitabah). These 4 skills cannot be achieved without having skills in good vocabulary mastery, because the quality of a person's language skills depends on the level of proficiency and the amount of vocabulary he has. This study uses the Research and Development (RD) Borg and Gall model. Sources of data in this study obtained by means of interview techniques, observation, and documentation. The results of this study are that teachers and students want the development of interactive multimedia-based learning media based on Autoplay Studio for Arabic vocabulary mastery for class VIII. The results of the assessment can be seen that the value of the overall media feasibility aspect is with an average value of 84.5 which means this media is in the score range of 81-100 reaching a scale of 5 with a very good category (very decent). Thus, it can be concluded that the interactive media based on Autoplay Studio that was developed is very suitable for use by class VIII students at SMP Muhammadiyah Imogiri.

PENGEMBANGAN METODE PEMBELAJARAN KETERAMPILAN MENYIMAK BAHASA ARAB BERBASIS KOOPERATIF TIPE JIGSAW

This research is motivated by the attitudes of class X SMA / MA students who are still adjusting to the new learning environment and not many students have studied Arabic so that students experience learning difficulties, especially in learning Arabic listening skills. This causes some students to lack a sense of responsibility for the learning material so that students do not pay attention to the teacher's explanation. Therefore, the development of learning methods for Arabic listening skills based on cooperative jigsaw type for class X SMA / MA students is needed so that students can have a sense of responsibility for their learning and that of others so that the learning objectives will be achieved properly. This study uses a type of qualitative research with a research and development design (Research and Development). The results of this study are as follows. First, teachers and students want the development of a jigsaw-type cooperative method for Arabic listening skills for class X SMA / MA. Second, the prototype of this method contains the background, assumptions, characteristics of the method, KI, KD, and indicators of Arabic listening skills for class X SMA / MA odd semester, learning steps, evaluation, and assessment criteria. Third, the assessment on the feasibility aspect of the presentation got a value of 44.5, the audio feasibility aspect got a value of 12.75, and the aspect of the feasibility of the method got a value of 30.75. The overall value of the aspects of this learning method is 88 in the very feasible category so that it can be used for learning Arabic listening skills for class X SMA / MA.

Development of flipbook e-module problem-based learning (PBL) learning model to increase students’ learning outcomes in oxidation-reduction reaction material

Research and Development has been carried out to produce a valid, practical and effective e-module flipbook model of Problem-Based Learning (PBL) to improve learning outcomes on redox material. This type of research is Research and Development (R&D) adopting the ADDIE development model. The e-module trial was carried out in Class X MIPA at SMA Negeri 12 Banjarmasin for the 2020/2021 Academic Year. Validation and observation sheets, readability questionnaires, response questionnaires, and learning outcomes tests were occupied to collect the data. In analyzing the data, descriptive analysis was used. The results showed that the developed e-module has met the following criteria: (1) Validity; the value of the content feasibility aspect of 91% (very valid), presentation of 96% (very valid), language of 95% (very valid), and media of 94.5% (very valid). (2) Practicality, seen from the readability results of e-module on individual tests of 3.5 (very good) and small groups of 3.4 (very good), student responses to e-modules of 3.3 (very good), and responses to teacher teaching activities using e-module of 3.7 (very good). (3) Effectiveness, views and learning outcomes of knowledge with an N-gain value of 0.80 (high) and the result of learning attitudes of 83.26 (very good).

Pengembangan Lembar Kerja Siswa (LKS) Berbasis Model Pembelajaran Inkuiri Terbimbing Pada Materi Termokimia

This study aims to determine the feasibility of the worksheets student based on the BSNP criteria and to find out the responses of students to the designed worksheets. The method in this research uses the method of Research and Development (R&D) according to the Borg and Gall stages. The research subjects were worksheets based on guided inquiry learning models. The object of research is the thermochemical material. The results showed that the worksheets student that had been compiled had met the eligibility criteria according to the BSNP standards based on the content feasibility aspect, the presentation feasibility aspect, and the language feasibility aspect, which was obtained an average percentage of 88.55% with valid / feasible criteria and based on the feasibility aspect of graphic -the average percentage of 87.41% with valid / feasible criteria. As for the results of student responses to the designed worksheets is very high with an average percentage of 88.60%.

Laundry Business Opportunities Of Covid-19: An Analyses From Maqashid Al Syariah

This study aimed to analyze the laundry business opportunities in the midst of the covid-19 pandemic in Parepare. This study used feasibility analysis in some aspects including marketing, human resource management, technical and technological aspects, legal aspects and investment feasibility aspects in the form of Payback period (PP), Benefit Cost Ratio (BCR), Net Present Value (NPV) and Internal Rate of Return (IRR). The sampling technique was purposive sampling utilizing Firman Laundry and BMR Laundry as samples with data analysis of maqashid al sharia al Khassah ibn Asyur. The results of the research showed that the marketing aspect was feasible because it was strategically located. The human resource management aspect exhibited a simple organizational structure but was able to provide benefits. The technical and technological aspects had used a drying machine, a washing machine with steam technology, and the investment feasibility aspect obtained were from PP, BCR, NPV, IRR which both were able to exceed the profit target set by the business owner so that this business had a great opportunity despite the pandemic in Parepare. Besides, it produced a description maqashid Khassah by Ibn Asyur covering al rawaj, al wuduh, al-hifz, al tsibat and al adl.

ANALISIS KELAYAKAN INVESTASI TEKNOLOGI ROBOTIKA PADA LINI PRODUKSI PT. A

This research purpose is analyzing investment feasibility on manufacture company related management plan. Company investment project in 2019 is robotic technologies application in production line assembly, robotic installation theme for 2019 is Six Axis Robot Tank Welding. Related this investment activity, required analyzing investment feasibility due avoiding finance loss after investment. Analyzing observing method for knowing feasibility value by using 3 aspect, base on stake holders concept (Suliyanto, 2013). Feasibility aspect during reasearch activity are market aspect , teknical & operation aspect & finance aspect, each aspect contain feasibility parameter for make judgement investment feasibility value on investment project. 
 Key words: Six Axis Robot, market aspect, technical & operation aspect, financial aspect