ISSN / EISSN : 2502-5643 / 2720-9571
Published by: Kelompok Peneliti Muda Universitas Negeri Jakarta (10.47028)
Total articles ≅ 29
Latest articles in this journal
Risenologi, Volume 6, pp 47-56; doi:10.47028/j.risenologi.2021.61.145
The fern is one of the plants that is easily found in Indonesia and it has a high diversity and distribution. Ferns are among the simplest vascular plants and are classified into sporous cormophytes which already have transport vessels. The purpose of this research was to identify and inventory the types of ferns found in Mount Gede Pangrango National Park. The research method used was descriptive with path tracking techniques and observations on the morphology of the found ferns. The research results obtained that 29 species of ferns were found in the observations made, namely Ophioglosum reticulatum L., Selaginella caudata (Desv.) Spring, Davallia denticulata (Burm.) Mett. & Kuhn, Adiantum capillus-veneris L., Asplenium adiantum-nigrum L., Dryopteris sparsa (Ham.) Kuntze, Angiopteris evecta (G.Forst.) Hoffm., Dipteris conjugata Reinw., Pleopeltis heterocarpa Bedd., Phegopteris connectilis (Michx .) Watt, Asplenium nidus L., Polystichum acultatum Roth, Tectaria crenata Cav., Pityrogramma calomelanos (L.) Link, Pteris biaurita L., Nephrolepis biserrata (Sw.) Schott, Microsorum scolopendria (Burm.fil.) Copel., Cyathea contaminans (Wall. Ex Hook.) Copel., Davallia pentaphyla Blume, Dicksonia blumei (Kunze) T. Moore, Davallia trichomanoides Blume, Ctenitis vilis (Kunze) Ching, Thelypteris rudis (Kunze) Proctor, Adiantum hispidulum Sw., Bolbitis quoyana (Gaud.) Ching, Selaginella ornata (Hook & Grev.) Spring, Drynaria pleuridioides Presl, Gleichenia linearis (Burm.) CBCl., and Psilotum nudum (L.) P. Beauv. This research concludes that each fern plant has its characteristics that can be used as a basis for observing and identifying the types of ferns and making an inventory.
Risenologi, Volume 6, pp 31-36; doi:10.47028/j.risenologi.2021.61.156
This research aimed to obtain information about online learning using the Zoom application for the PGSD students of FKIP of Widya Gama Mahakam University of Samarinda during the Covid-19 pandemic. This research used a qualitative descriptive approach. This research subjects were PGSD students who actively participated in online lectures and selected nine sources, namely four students of class 2018 and five students of class 2019. The selection of these sources used a purposive sampling method. Data collection techniques used were observation, interviews via Zoom meeting and WhatsApp, also documentation. The activities in analyzing the data obtained are data reduction, data presentation, drawing-conclusions, and verification. This research used triangulation techniques to test the validity of the data. It can be concluded from the results of this research that lecturers and students as users of the Zoom application need to understand the steps of using the Zoom application to make it easier to take online lectures. The Zoom application is quite effective as a medium for online lectures because it has effectiveness in terms of place, time, services, and facilities, even though there are also obstacles in its use.
Risenologi, Volume 6, pp 86-95; doi:10.47028/j.risenologi.2021.61.155
Reality is only a social construction created by humans. Tik Tok is a new reality phenomenon constructed by the community as a form of self-expression. One of the features offered by Tik Tok is trending hashtag, which is a collection of the most popular videos. The number of Tik Tok users, especially women, are competing to create content related to the meaning of beauty. This study seeks to analyze the social construction of the meaning of the symbol of beauty in the trending hashtag Tik Tok. The samples of this study were 4 trending hashtags, namely: ladadida challenge, negligee challenge, dualism challenge and ah steady challenge. By using the Zhongdang Pan and Gerald M. Kosicki's framing analysis, the results show that there are beauty constructs from these 4 challenges. The symbol of beauty on Tik Tok proves that those users with beautiful faces, white, make up, and wear good clothes are those who are popular and get a lot of attention from other users. The results of this study are expected to be able to be used as literacy for the younger generation, especially Tik Tok social media users, to be wiser in constructing beauty, that everyone is basically beautiful and has different standards of beauty.
Risenologi, Volume 6, pp 8-12; doi:10.47028/j.risenologi.2021.61.147
The purpose of this research is to explain the ddevelopment of 3D animated video media in traditional games of petak benteng for motor skills. The children (students) began to recognize the traditional game of petak benteng. Researchers developed a traditional game of petak benteng by using it as a 3D animated video to introduce the game. So that the game is not inferior to modern games. This researcher is a research and development (RnD). Sources of fata in this study are primary data and secondary data. The data techniques, and interviews. The result of this research is that 3D aniamtion video learning media for students tradisional games, 3D animation video for the introduction of traditional games can be used to improve studentts motor skills, and 3D animation videos can be used as online learning media.
Risenologi, Volume 6, pp 37-46; doi:10.47028/j.risenologi.2021.61.171
This study aims to determine the feasibility of facilities and infrastructure of the Building Information Modeling (DPIB) Skills Competency Vocational School in Bekasi City and Regency in terms of Permendikbud No. 34 of 2018 and the Vocational Practice Exam Vocational School Verification Instrument issued by the National Education Standards Agency (BSNP). This research is a descriptive research method with a quantitative approach. Research data collection through observation, documentation and interviews. The data analysis used was descriptive statistics. The results of this study indicate that the feasibility level of the facilities and infrastructure of the DPIB Skills Competency Vocational School in Bekasi City in this case is SMK Negeri 6 Bekasi City, namely for the feasibility of class room facilities and the feasibility of practical room facilities with very feasible categories, for the availability of classroom facilities, feasibility of infrastructure. Classrooms and the availability of practical room facilities are categorized as feasible, while the feasibility of practice room infrastructure is categorized as less feasible. The feasibility level of the DPIB Skills Competency Vocational School in Bekasi Regency, in this case SMK Negeri 1 Cikarang Barat, is the feasibility of class room facilities and the feasibility of practice room facilities is categorized as very feasible, for the availability of classroom facilities, the availability of practice room facilities and the feasibility of practice room infrastructure are categorized as feasible. , while the feasibility of practice room infrastructure is categorized as less feasible.
Risenologi, Volume 6, pp 19-30; doi:10.47028/j.risenologi.2021.61.165
Students misconceptions in solving contextual algebraic problems is still often found in this educational world. This study aims to describe the forms of student’s misconceptions in solving algebraic contextual problems and explain the causes of these misconceptions. The approach in this research is a qualitative approach, that is library research where the data used are secondary data. This research uses literature review data collection techniques. The number of articles used as data sources is 19 articles related to topics in research with algebraic contextual items taken from 5 articles to be displayed in the results section of the study. Data analysis used descriptive analysis method by describing the intentions and comparing several research articles. The results showed several forms related to non-systematic errors, namely concept errors or students’ misconceptions in solving algebraic contextual problems, namely the occurrence of misconceptions within the scope of algebraic arithmetic operations, understanding the meaning of variables, simplifying, or operating algebraic expressions, and interpreting contextual problems into algebraic mathematical form. The misconception occurs in students with low and moderate mathematical abilities where the cause of this phenomenon is due to the occurrence of errors in the learning process by educators in which students are less accustomed to solving contextual problems or open-ended questions. Therefore, it is hoped that educators can determine the learning model appropriately in fixing the problem of contextual algebraic misconceptions and further researchers can find new learning models that affect this problem.
Risenologi, Volume 6, pp 1-7; doi:10.47028/j.risenologi.2021.61.136
In this study brass used as a sample is brass which is used as a raw material for LPG (Liquified Petroleum Gas) valves. Two samples were taken which were prepared before the composition test and microstructure test. From the results of the micro test, it is found that the brass phase structure is the ? proeutectic phase and the ? phase. The proeutectic phase ? has an FCC structure while the ? phase has a BCC structure. There are also black dots which are Lead with different percentages for each sample.Lead tends to be in the particle-shapedside.
Risenologi, Volume 6, pp 77-85; doi:10.47028/j.risenologi.2021.61.150
At the higher education level in the field of engineering, the development and utilization of educational media for practical learning is needed to ensure that students have technical skills and not just theory. The purpose of this study is to develop practical learning media for the transducer sensor subject and industrial instrumentation in the Multi-Sensor Application Trainer (TAMS). The trainer is based on current developments in transducer sensor technology and control systems. The research method used is research and development (R & D) using a media development model with ADDIE (analysis, design, development, implementation, and evaluation). Developing this trainer includes making hardware (hardware) and software (software). This trainer has various sensors, outputs, and a control module in the Arduino Mega2560 and is supported by the Raspberry Pi. This trainer is equipped with a practicum module that contains 15 (fifteen) practicum that will be used by students. The results of the validity test by material experts obtained an average percentage of the assessment score of 85.25% which means that it is valid and very feasible to use. The results of the validity test by media experts obtained an average percentage of the assessment score of 78.04%, which means that it is valid and very feasible to use. The results of the student's assessment of the use of trainers are 90%, so it can be concluded that the TAMS is very suitable for use. Qualitatively, students considered that the TAMS could function well and be easy to use.
Risenologi, Volume 6, pp 57-69; doi:10.47028/j.risenologi.2021.61.174
The world of education today is growing rapidly and the problem of education is increasingly complex which continues to struggle for challenges that are left unchecked just like that, but it requires constructive thinking in order to achieve good quality. The problem in question is the teacher's teaching competence. The problem of education and teaching is a fairly complex problem where many factors influence it. One of these factors is the teacher. The teacher is a teaching component that plays an important and major role, because the teaching and learning process is very much determined by the teacher factor. The task of the teacher is to deliver the subject matter to students through communication interactions in the teaching and learning process, where the success of the teacher in delivering the material is very dependent on the smoothness of communication interactions that have an effect on the message given by the teacher The problem of education and teaching is a fairly complex problem where many factors influence it. One of these factors is the teacher. The teacher is a teaching component that plays an important and major role, because the teaching and learning process is very much determined by the teacher factor. The task of the teacher is to deliver the subject matter to students through communication interactions in the teaching and learning process, where the success of the teacher in delivering the material is very dependent on the smoothness of communication interactions that have an effect on the message given by the teacher. The competency of teachers at the YAPPMI Jatibarang Indramayu Tourism Vocational School is in very good condition. The results of the recapitulation of the respondent's score on the competence of teachers at the YAPPMI Jatibarang Indramayu Vocational School of Tourism are 993, the data is in a strongly agreed area (945 - 1125 = strongly agree), Regression Analysis. The results of data collection will be collected for each variable as a value for each respondent and can be calculated through the SPSS program. The method of analyzing data uses statistical calculations and uses the SPSS version 23 program to test the predetermined hypothesis whether it can be accepted or rejected. In this calculation the statistical calculations use a simple regression analysis model: Y = a bX + e. The achievement of students and employees at SMK Pariwisata YAPPMI Jatibarang Indramayu is in very good condition. The results of the recapitulation of scores of respondents' answers regarding student achievement at SMK Pariwisata YAPPMI Jatibarang Indramayu are 653 the data is in very good areas (630 - 750 = strongly agree). The results of statistical tests on the teacher competency variable on student achievement indicate that the R Square value is 0.220, or 22%, which means that there is an effect of teacher competence on student achievement and the remaining 78% is a variable outside the study. The value of the teacher competency t (X) is greater than the t table (2.790> 2.064) or the significance level of the t count is smaller than the alpha value (0.010 <0.05), thus that there is acceptance of H0 or acceptance of Ha which means it shows the influence of the teacher competency variable ( X) positively and significantly towards the student achievement variable (Y).
Risenologi, Volume 6, pp 107-111; doi:10.47028/j.risenologi.2021.61.157
Dengue hemorrhagic fever (DHF) is a disease that is a problem in Indonesia, especially East Java. Sidoarjo is one of the city with high DHF cases in East Java with a total cases until 1,708 in 2016. One of the factors that support the increase in DHF cases is the availability of breeding site of Aedes. Research about breeding sites of Aedes in plants is limited. Vector control is often carried out only to ponds, air containers, and other artificial breeding sites, while in nature there are many plants that can to used breeding site such as phytotelmata. Phytotelmata are plants that can hold water in one of their bodies. This study aimed to determine the diversity of types and types of phytothelium, the physical condition of the water collected in the phytothelium and the Aedes species found in the phytotelmata. This research used descriptive observational. Determination of the sampling point using purposive sampling method. The results showed that there were eight species of phytotelmata which were used as breeding site for Aedes spp. in Sidoarjo, namely Musa paradisiaca, Pandanus amaryllifolius, Cocos nucifera, Neoregelia spectabilis, Bambusa sp. Neoregelia charm, Aechmea fasciata, and Xanthosoma sagittifolium. The Aedes species found were mostly Ae. albopictus. The average of air volume of the phytotelmata is 95.84 ml with water temperatures is 25-26oC and water pH is 6-7.