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Márquez-Artavia, Xiomara, Luis Delgado-Orozco, and José Saavedra-Arias. "Evaluation Conducted With University Teachers on the General Physics Courses Taught at the National University of Costa Rica During 2014 and 2019." Revista Electrónica Educare 26, no. 1 (January 1, 2022): 1–23. http://dx.doi.org/10.15359/ree.26-1.5.
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Objective. Evaluate the General Physics courses (theory and laboratory) of the Science Teaching career with the university teaching staff, in the period from 2014 to 2019, to identify the strengths and weaknesses in the methodology and propose new educational strategies. Method. The research was conducted through a virtual survey with the LimeSurvey software to the teachers who have taught Physics courses for the Science Teaching career in the last five years; the survey was applied to the total population of 20 teachers, but only 12 of them answered it. The instrument was designed by the teaching staff working on the project to improve the laboratory manuals. The instrument analysis was carried out with the help of an Excel spreadsheet provided by the LimeSurvey software. The instrument was validated by IDESPO staff of the National University regarding the relevance of the content of the statements, the clarity of the questions, and the coherence with the objective of this study. Results. The structure and organization of the General Physics courses have a positive assessment by the teachers, who also showed a preference for the traditional lecturing; but even so, they are willing to train and learn new teaching strategies. Conclusions. The results of this investigation show that teachers are open to technological change and to working on the challenges that government policies have proposed.
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Liana, Yeni Rima, S. Linuwih, and S. Sulhadi. "The Development of Thermodynamics Law Experiment Media Based on IoT: Laboratory Activities Through Science Problem Solving for Gifted Young Scientists." Jurnal Penelitian & Pengembangan Pendidikan Fisika 6, no. 1 (June 30, 2020): 51–64. http://dx.doi.org/10.21009/1.06106.
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In this research, thermodynamics law experiment media based on IoT was developed and tested. The purpose was to assess the effectiveness of the IoT-based thermodynamic law experiment media through a problem-based learning approach and laboratory activities using science problem solving for talented young scientists. This research was conducted at SMA 2 Batang. This study using the ADDIE approach model. The development steps are: (1) analyzing curriculum requirements and demands in 2013, (2) designing and manufacturing, (3) developing media, (4) limited through small-scale tests, expert testing, tested on professional physics teachers and student grade XI sciences, (5) evaluated to get feedback in the form of comments and suggestions. This media is equipped with an LCD display to read of temperature, electric current, and electrical voltage in real-time which is integrated with the the Thingspeak application on every student’s android phone. This media is easily assembled, based on digital, equipped with manuals and student worksheets. The validation results from the media experts 90.20% (Very Good), the results of the validation from the material experts 91.50% (Very Good), and the results of the physics teacher’s responses covering all aspects of the material and multimedia 93.00% (Very Good). The results of the validation show that thermodynamics law experiment media based on IoT is appropriate to be used as a media for learning activities in the thermodynamics law material laboratory.
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Johan, Henny, Desy Hanisa Putri, Eko Risdianto, Andik Purwanto, Septi Johan, and Sipriyadi Sipriyadi. "Needs Analysis for Practical Guide Based Augmented Reality (AR) in an Effort to Support Basic Physics Practicum Activities During the Covid-19 Pandemic." Jurnal Ilmiah Pendidikan Fisika 7, no. 2 (August 27, 2023): 290. http://dx.doi.org/10.20527/jipf.v7i2.7693.
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This study aims to conduct a field study on the need to develop Augmented Reality (AR) assisted practicum guidelines. Data collection instruments were in the form of questionnaires and interview guidelines. The subjects in this field study were students who became practicum assistants, physics laboratory staff, and lecturers of basic physics courses. Questionnaire data and interview results were analyzed qualitatively to see the real conditions of the practicum. Based on the results of data analysis, it is known that practicum manuals are still dominant in text, and practicum activities can be directed to practice problem-solving skills. The phenomenon of coastal areas can also be associated with physics practicum material. Based on the results of the practicum assistant's questionnaire, it is known that AR can facilitate physics practicum, so it is necessary to develop an AR-assisted practicum guide that presents audio-visual presentations. Based on the results of the interviews, it is also known that the constraints on practicum activities during this pandemic were that not all practicum courses were available at PheT to carry out virtual practicums, counter-dependence with assistant explanations in carrying out practicum procedures, so strict procedures could not be carried out, so it could be interpreted that a solution was needed an alternative practicum guide that is equipped with a video tutorial about practicum procedures. AR technology can be used to visualize tutorial videos that can be accessed offline.
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Ronquillo, Daniel. "About the 3D virtualization of the Millikan oil drop experiment." Journal of Physics: Conference Series 2796, no. 1 (July 1, 2024): 012023. http://dx.doi.org/10.1088/1742-6596/2796/1/012023.
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Abstract Robert Millikan’s experiment, conducted in 1909, aimed to measure the charge of the electron. This experiment holds immense significance in the fields of electricity and magnetism and is widely performed by physics and chemistry students worldwide. While there are simplified two-dimensional recreations of this experiment available, obtaining measurements that closely resemble reality through a three-dimensional recreation is not easily accessible. This article delves into the development process of this three-dimensional recreation, achieved through reverse engineering of the original experiment using the Unity video game engine. Additionally, it incorporates laboratory equipment, user manuals, and a student guide to ensure a comprehensive experience. By comparing the data obtained from the virtual recreation with that of the real experiment, it was observed that the precision of the virtual experiment resulted in a mere 7% error. Consequently, the virtual experiment can be used as a substitute for the real experiment when circumstances prevent its execution, without compromising the hands-on experience.
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Affanni, Antonio, Taraneh Aminosharieh Najafi, and Sonia Guerci. "Development of an EEG Headband for Stress Measurement on Driving Simulators." Sensors 22, no. 5 (February 24, 2022): 1785. http://dx.doi.org/10.3390/s22051785.
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In this paper, we designed from scratch, realized, and characterized a six-channel EEG wearable headband for the measurement of stress-related brain activity during driving. The headband transmits data over WiFi to a laptop, and the rechargeable battery life is 10 h of continuous transmission. The characterization manifested a measurement error of 6 μV in reading EEG channels, and the bandwidth was in the range [0.8, 44] Hz, while the resolution was 50 nV exploiting the oversampling technique. Thanks to the full metrological characterization presented in this paper, we provide important information regarding the accuracy of the sensor because, in the literature, commercial EEG sensors are used even if their accuracy is not provided in the manuals. We set up an experiment using the driving simulator available in our laboratory at the University of Udine; the experiment involved ten volunteers who had to drive in three scenarios: manual, autonomous vehicle with a “gentle” approach, and autonomous vehicle with an “aggressive” approach. The aim of the experiment was to assess how autonomous driving algorithms impact EEG brain activity. To our knowledge, this is the first study to compare different autonomous driving algorithms in terms of drivers’ acceptability by means of EEG signals. The obtained results demonstrated that the estimated power of beta waves (related to stress) is higher in the manual with respect to autonomous driving algorithms, either “gentle” or “aggressive”.
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Ramdani, Ricky, Eka Murdani, Intan Kusumawati, and Haewoon Park. "Development of Physics Laboratory Manual: Characteristic of Resistors Circuit." JIPF (Jurnal Ilmu Pendidikan Fisika) 4, no. 1 (March 10, 2019): 13. http://dx.doi.org/10.26737/jipf.v4i1.791.
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This study aimed to produce a physics laboratory manual characteristic of a single, series, parallel and series-parallel series of resistors; found out the quality of the physics laboratory manual characteristics of a single, series, parallel and series-parallel series of resistors. This research is a research development. Data collection in this study used suggestion and input sheets, quality assessment sheets for laboratory manual and student response sheets. Laboratory manual quality data obtained from three assessors, student response data for the limited trial I involving six students, and limited trial II involving 28 students. The physics laboratory manual characteristics of a single, series, parallel and series-parallel circuit of resistors have been produced with the criteria of "very eligible" based on final validation by media expert with a percentage of 97% and declared "very eligible" based on final validation by material expert with a percentage amounting to 83.90% and stated to be "very eligible" based on the final assessment by lecturer of electromagnetics courses with a percentage of 80%. This physics laboratory manual received a "very good" response from students with a percentage reaching 82% in limited trial I and received a "very good" response with a percentage of 82.60% in limited trial.
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Демкова, Віта. "Physics laboratory work using cloud technologies." Scientific notes of Vinnytsia Mykhailo Kotsiubynskyi State Pedagogical University Section Theory and methods of teaching natural sciences, no. 5 (November 2, 2023): 14–22. http://dx.doi.org/10.31652/2786-5754-2023-5-14-22.
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The article describes the structure and content of the physics textbook «Laboratory work using cloud technologies» for students of vocational higher education institutions. The importance of modernizing the educational process in physics in general and approaches to conducting laboratory work in particular using the methods of modern information and communication and cloud technologies are analyzed. The importance and advantages of digitization of the educational process in physics through the use of cloud services, virtual laboratory works, simulators, mobile applications, flash animations, etc. are substantiated. The theoretical and practical blocks of the manual are described in detail. The theoretical unit is represented by three sections and is filled with didactic and methodical materials that contain recommendations, advice and rules for organizing, preparing and conducting a physical experiment. The practical unit of the manual is represented by one section «Laboratory works», which presents instructions for seven laboratory works. A feature of such works is the use of virtual laboratories, simulators, and cloud environments for testing physical laws, researching physical phenomena, and determining physical quantities. The article provides an example of instructions for laboratory work «Determining the index of refraction of light at the boundary of separation of two media». The research presented in this experiment is carried out using the «Refraction of Light» physical simulator of the website Phet.colorado.edu - the website of the University of Colorado. The process of measuring the refractive index of light at the boundary between two media is described in detail and step by step. The order of performing some tasks is illustrated by the corresponding screen images of the «Refraction of Light» physics simulator. The materials for surveying and monitoring the educational achievements of students are given, among which three directions of questions and tasks are singled out for the didactic purpose: to check the assimilation of knowledge, to check the formation of skills and abilities, to check the formation of beliefs. This manual has been tested in groups of students of the humanitarian profile of institutions of vocational pre-higher education. At the All-Ukrainian competition «Pedagogical OSCAR – 2023», the manual won the 2nd place in the nomination «Innovative approaches to the organization of practical training of students of vocational pre-university education».
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Et. al., Shanthini E. ,. "Smart Augmented Learning." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 2 (April 11, 2021): 399–404. http://dx.doi.org/10.17762/turcomat.v12i2.821.
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Education is the foundation of our society. The most important investment we can make collectively and individually is in education. Rural education is of utmost importance to enhance and develop the livelihood of rural people indirectly. But the face of education in rural parts of the country has to be considered for a serious check-up with children failing to receive a good quality of education. This is one of the reasons to drivestudents away from attending their schools. The education system in rural areas is information based rather than a practical oriented, which is a major setback for the economic growth of the nation. The prominent crises that hold back rural schools are the lack of smart learning technology and no proper access to laboratory equipment for the students. Augmented Reality (AR) is one of the finest technologies that can be utilized for education development as it amplifies the learning process.Marker-based AR android application can help by over-laying audio-visuals, computer graphics, 3-D graphical models’ representation, the contextual information of concept’s procedures, processes, working, functions and its usage directly over the manuals which make the subject more understandable and comprehensive, thus enhances the student’s knowledge. The utilization of AR technology in the field of education will prove to be a great positive societal impact essentially for rural school students. It sets a path for learning all the concepts smartly and efficiently. AR-based learning can create an impact because there is no need for the internet. The mobile application also helps to improve the student’s self-learning skills. In this paper, some concepts from biology and physics are considered, the graphical models, functionality and working are displayed in AR with the help of Maya 3D, Unity 3D.
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Enns, Richard H., George C. McGuire, and Peter B. Kahn. "Laboratory Manual for Nonlinear Physics with Maple for Scientists and Engineers." American Journal of Physics 66, no. 1 (January 1998): 93–94. http://dx.doi.org/10.1119/1.18823.
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Suseno, Nyoto, and Riswanto Riswanto. "SISTEM PENGELOLAAN LABORATORIUM FISIKA UNTUK MEWUJUDKAN PELAKSANAAN PRAKTIKUM YANG EFISIEN." Jurnal Pendidikan Fisika 5, no. 1 (March 31, 2017): 76. http://dx.doi.org/10.24127/jpf.v5i1.743.
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The Indeavorings’ problem of SMA physics laboratory are: lack competence human resource, coordinator of laboratory is as the second teacher job, the laboratory hasn’t been managed well, so far the laboratory cannot been used optimum. To overcame this problem, there is conducted guidance tacnical of laboratory workers, and workshop management of labarotory. The stap include: guidance tacnical for human resource, workshop of manual laboratory management, inventory and labeling, workshop of schedule arrangement, SOP and the implementation. The result are: 1) in general, the physics laboratory of SMA in Metro have fulfilled the infastruture standar, 2) lack of human resource, 2)good management can help the physics experements a run efficient based on the schedule. The problem found that the teachers are difficult to look for the materials and their spacification, so that needed improvement to laboratory management based on ICT
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Junita, Ode, Sahlan Sanlan, and Azmi Khusnani. "Development of a Physics Experiment Guidebook Using a Smartphone Assisted by the Phyphox Application." Jurnal Pendidikan Fisika dan Teknologi 10, no. 1 (June 3, 2024): 29–35. http://dx.doi.org/10.29303/jpft.v10i1.6679.
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The purpose of this study was to determine how to create, evaluate, and implement a physics experiment manual for damped oscillatory motion using a smartphone and the Phyphox application. This study took place at the Integrated Science Laboratory of IKIP Muhammadiyah Maumere and involved 20 students from the second and fourth semesters of the Physics Education Study Program during the 2022/2023 academic year. The methodology used in this research was Research and Development (R&D), which followed the ADDIE development model consisting of five main stages: Analysis, Design, Development, Implementation, and Evaluation. The tools used in this study were expert validation sheets and student response questionnaires. Quantitative descriptive analysis techniques were used to calculate the proportion of expert validation scores and student response questionnaire results. Specialists in materials evaluated the physics experiment manual and gave it a rating of 94%. Meanwhile, media professionals evaluated the same manual and rated it 95%. The combined feedback from both groups indicates that the physics experiment handbook is very eligible to use. According to the student response questionnaire, the average score obtained by the students was 87%, which falls under the category of "very interested." This indicates that the physics experiment manual is highly suitable for learning physics.
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Manalu, Anre Josep, Darwis Robinson Manalu, and Harlen Gilbert Manullang. "IMPLEMENTASI METODE SHORTEST-JOB FIRST UNTUK PENJADWALAN PENGGUNAAN LABORATORIUM FISIKA DI SMA 1 PEGAJAHAN." METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi 8, no. 2 (September 30, 2022): 5–8. http://dx.doi.org/10.46880/mtk.v8i2.1131.
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Queuing problems can occur in many cases, including in the process of using the physics laboratory by patients. The use of the physics laboratory at SMA Negeri 1 Pegajahan experienced problems such as recording the Order Form which was still done manually, this resulted in frequent data accumulation, loss and even miscommunication. This study aims to make a schedule for the use of the physics laboratory to overcome the queue problem. In this study, the author uses the Shortest Job First (SJF) algorithm, which is a scheduling method by determining that each process in the ready queue will be executed based on the smallest burst time so that the waiting time is short for each process and the average waiting time is also short. Based on the existing problems, it can be concluded that there is a need for a physics laboratory scheduling system using the shortest job first method that can manage and determine the usage schedule according to the duration that has been made.
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Belvis, Gilbert C. "Assessment of Science Process Skills: Basis for The Development of Laboratory Manual in Physics." International Journal of Research and Innovation in Social Science 06, no. 08 (2022): 499–505. http://dx.doi.org/10.47772/ijriss.2022.6822.
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This study was conducted to assess the level of science process skills and will be the basis for the development of Laboratory Manual in Physics for Grade 9 students of Anilao National High School, Anilao, Iloilo for the school year 2016 – 2017. A total of 48 grade 9 – 1 students was utilized as respondents. Developmental research design was employed conducted during the fourth grading period of SY 2016 – 2017. Data were gathered using pretest and posttest. The data were analyzed using the mean, Standard deviation and t-test. Pretest result showed that the level of Basic Science Process Skills of 48 grade 9 – 1 students were categorized as poor. Laboratory Manual in Physics was developed and implemented. After the implementation, post test was administered. Post test result showed that the level of SPS of 48 grade 9-1 students were categorized as Very Good. It further revealed that there is a significant difference on the level of SPS of 48 Grade 9-1 students before and after the implementation, as also reflected during the interview and focus group discussion when respondents were asked and agreed about the implementation. The 0.05 % alpha level was used as criterion for acceptance or rejection of the alternative hypothesis. SPSS was used for statistical computations.
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Tongco, John, Wesley Clarke Silvederio, Pamela Joy Salanawon, and Justine Mercado. "Development of Virtual Laboratory Simulation: e-SCILAB on Waves for Grade 7 Science." International Journal of Multidisciplinary: Applied Business and Education Research 2, no. 11 (November 14, 2021): 1283–97. http://dx.doi.org/10.11594/10.11594/ijmaber.02.11.20.
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Virtual Laboratory Simulation (VLS) enhances student understanding, retention of concepts, and promotes active learning through direct visualization and manipulation of computer animations. This study aimed to develop a VLS with complementary manual for Grade 7 physics that can be utilized by the teachers to address the needs of the students in the new normal learning. The developed VLS is composed of a Teacher’s Instructional Manual and Student’s Learning Manual. The study used Research and Development approach with the ADD (Analysis, Design, and Development) model as the instructional method. These allows the researchers to analyze the need of VLS, identify the design of VLS, and develop the VLS. The VLS was evaluated based on the content quality with a mean of 4.68, technical quality with 4.65, and instructional quality with 4.57. The results for the complementary activity manual in terms of the content quality is a mean of 4.62, the technical quality with 4.54, and the instructional quality with 4.55. The result showed that the developed VLS together with the complementary activity manual satisfied the quality components and attained the intended standards. It is recommended that evaluation of the effectiveness of VLS through pilot tests in public and private schools.
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Lyu, Ruoyun, Ming Gao, Huayuan Yang, Zonglin Wen, and Wenchao Tang. "Stimulation Parameters of Manual Acupuncture and Their Measurement." Evidence-Based Complementary and Alternative Medicine 2019 (August 28, 2019): 1–10. http://dx.doi.org/10.1155/2019/1725936.
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The therapeutic effect of manual acupuncture (MA) is closely related to the stimulation amount. In the clinical studies, the stimulation amount is often difficult to be determined. The reason is that there are many parameters affecting the stimulation amount, including manipulation selection, treatment time, needling velocity, and force, and no complete and reasonable scheme is available for the measurement of stimulation parameters. This paper reviewed the theoretical and laboratory measurement studies on MA stimulation, summarized 4 types of available parameters according to the theory of physics, and compared the advantages and disadvantages of the existing methods of parameter measurement. Such efforts are hoped for providing reference for the establishment of the stimulation parameter system of MA and possible technical solutions for future measurement experiments.
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Laukhammer, Eivin, Eugenijus Mačerauskas, Andzej Lučun, Antoni Kozič, and Romanas Tumasonis. "APPLICATION OF AI-ENHANCED IMAGE PROCESSING METHODS FOR EDUCATIONAL APPLIED PHYSICS EXPERIMENTS." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 2 (June 22, 2024): 417–23. http://dx.doi.org/10.17770/etr2024vol2.8068.
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This article examines the use of an AI-powered automated image analysis system. The system's purpose is to enhance the workflow of students during applied physics laboratory experiments, helping them analyze images and perform accurate microobject counting. On the software side, the system incorporates machine learning algorithms for visual processing applications using Python and its’ extension libraries – CV2, Tensorflow, Keras, SkLearn etc.. The hardware consists of a camera and microprocessor, which, in conjunction with the image processing software, perform microobject recognition and counting in real-time. The goal is to automate applied physics laboratory experiments in which the counting of microobjects, be it organic or human-made, is usually done manually. During these applied physics laboratory experiments and with the aid of this system, students are exposed to a modern workflow, further preparing them for future work environments, teaching them about process automation, and further increasing their interest in micro-scale related science subjects. Automation using image processing technology combined with automatic data logging from images allows for fast and accurate micro-object counting.
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Ojala, Päivi. "Comprehensive evaluation offers inspiration and achievement in chemistry education." Lumat: International Journal of Math, Science and Technology Education 1, no. 4 (December 30, 2013): 355–62. http://dx.doi.org/10.31129/lumat.v1i4.1093.
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Practical laboratory activities have become more common in primary and secondary education with the current curriculum. In lower secondary school, laboratory work in chemistry and physics has been used even longer. The central issues of laboratory work becoming more common are how the activities are organized, safety of the laboratory work, and evaluation. Laboratory work has been taken into account in evaluation in many different ways, for example, a written assignment has been complemented with a practical assignment. The evaluation method provides those who can practically and manually demonstrate activeness and skill with the possibility to succeed.
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Goldman, Robert D., David L. Spector, and Barry R. Masters. "Live Cell Imaging, A Laboratory Manual." Journal of Biomedical Optics 11, no. 1 (2006): 019901. http://dx.doi.org/10.1117/1.2150471.
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Bento Silva, Juarez, Isabela Nardi Silva, and Simone Meister Sommer Bilessimo. "Technological Structure for Technology Integration in the Classroom, Inspired by the Maker Culture." Journal of Information Technology Education: Research 19 (2020): 167–204. http://dx.doi.org/10.28945/4532.
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Aim/Purpose: This paper presented the framework for the integration of digital technologies in education, implemented in InTecEdu Program, developed by Remote Experimentation Laboratory (RExLab), Federal University of Santa Catarina (UFSC), Brazil. Background: The main objective of the model presented is to arouse interest in science and technology among adolescents. Therefore, it sought to develop STEM competencies (Science, Technology, Engineering, and Mathematics) in children and adolescents. Understanding learning in STAM areas can favor the development of professionals who can supply the demand in related sectors, especially in the scientific-technological scope. To fulfill the main objective, strategies related to students and teachers were developed. With activities aimed at students, it was hoped to promote vocations to scientific-technological careers and encourage entrepreneurship. On the other hand, the activities related to teachers aimed at training them to integrate technology into their lesson plans. Inspired by the Maker Culture, the model sought to make it possible for teachers to become the main agents in the process of integrating technology in their lesson plans, since they were in charge of building and producing their digital content and other resources to support their didactic activities. The maker movement is a technological extension of the “Do It Yourself!” culture, which encourages ordinary people to build, modify, repair, and manufacture their objects, with their own hands. The training actions were preceded by a diagnosis, inspired by the Technological Pedagogical Content Knowledge (TPACK) model, as well as the lesson plans prepared and made available by the teachers. Methodology: Methodologically, the framework’s work plan was composed of five Work Packages (WP), which include management, resource mapping, strategies related to teachers, strategies related to students, and the dissemination and exploitation of results. In the 2014-2018 period, 367 teachers participated in training activities, intending to integrate technologies into lesson plans. At the end of 2018, 27 Basic Education schools, including an indigenous and a rural school, from the public-school system, in the states of Santa Catarina, Minas Gerais, and the Rio Grande do Sul, in Brazil, using the project’s Virtual Learning Environment (VLE). In these 70 teachers, 230 classes, and 6,766 students accessed didactic content, produced by teachers, at VLE. Also, 20 laboratories were available in 26 instances, for use in practical activities in disciplines in the STEM areas. Specifically, in the STEM areas, 3,360 students from 98 classes from 9 schools had integrated the Remote Laboratories, in lesson plans in the subjects of Physics and Biology (High School), Science (Elementary School). Contribution: The main results of the application of the framework are related to the training of human resources, knowledge production, and educational innovation. About the training of human resources, we sought to contribute to the training of teachers concerning technology in education and, with that, arouse greater interest on the part of students, as well as obtain improvements in their learning from teaching methodologies supported on the use of digital technologies. On the other hand, the production of knowledge, in the program and the socialization of research, is favored by the model based on open-source resources, both in terms of software and hardware and with open educational resources. This characteristic favor and expands the potential for reapplying research and, consequently, its contribution to educational innovation. Findings: The results, about students, indicated an increase in motivation due to the creation of new teaching and learning opportunities. The fact of extending the classroom and school, through remote laboratories, to support practical activities and the use of VLE, was also pointed out as a very positive factor. On the other hand, the realization of the workshops, inspired by practices of the Maker Culture, provided an approximation of these to the skills of the real world, which will certainly favor their employability. Regarding the teachers, it is noticed the continuity and expansion in the use of technological resources in the classroom; many sought and have participated in new training actions. Recommendations for Practitioners: Provision of a repository of practices for sharing and reuse of lesson plans developed by teachers participating in the research. Technical documents, manuals, and guides for robotics, computer programming, electronics and new technology workshops for students. Recommendation for Researchers: Technical documents, manuals, and guides for remote laboratories. Data collected in the applied questionnaires. Technical documents, manuals, and guides for robotics, computer programming, electronics and new technology workshops for students. Impact on Society: The main results of the framework application are related to human resources formation, knowledge production, and educational innovation. Regarding the formation of human resources, we sought to contribute to the formation of teachers concerning technology in education and, about the students the creation of teaching and learning opportunities, to extend the classroom and also the school, through the remote laboratories, to support the practical activities and the use of the VLE. Future Research: The socialization and reapplication of the framework since it is based on open-source resources, both software and hardware, and with open educational resources.
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Riswanto, Riswanto. "Efektivitas Dan Efisiensi Sistem Inventaris Laboratoium Online." Jurnal Pendidikan Fisika 7, no. 2 (September 29, 2019): 255. http://dx.doi.org/10.24127/jpf.v7i2.2332.
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The era of disruptive innovation globalization is marked by the digitalization of all aspects of life, including education-based on big data. The laboratory is a minimum standard that must be held by education providers, and the goal is to support science learning activities. Laboratory systems that have been developed online need to be reviewed for their effectiveness and efficiency values. The research method was carried out by data triangulation and snowball techniques in the form of quantitative data and qualitative data. The results obtained that the effectiveness of the online laboratory system provides convenience in carrying out practical activities and ease of communication for laboratory users. As efficient as the online physics laboratory inventory system is, it takes six times faster to utilize an online laboratory inventory system when compared to a manual mode.
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Suharyo, Seno, Iryan Dwi Handayani, Desy Ratna Arthaningtyas, and Hari Setijo Pudjihardjo. "PELATIHAN PENGGUNAAN SPREADSHEET EXCEL UNTUK MENYELESAIKAN SOAL FISIKA DI SMP KESATRIAN 2 SEMARANG." SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan 6, no. 3 (September 6, 2022): 1210. http://dx.doi.org/10.31764/jpmb.v6i3.10350.
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ABSTRAKPelajaran Fisika sudah mulai diajarkan di Sekolah Menengah Pertama (SMP). Untuk menyelesaikan soal-soal Fisika dilakukan dengan menghitung secara manual. Meskipun belum diajarkan cara menghitung dengan formula dasar di Excel untuk soal Fisika, namun dirasa akan cukup bermanfaat jika sudah mulai diperkenalkan di Sekolah Menengah Pertama. Diharapkan ketika berada di Sekolah Menengah Atas (SMA), siswa sudah cukup familiar untuk menyelesaikan soal-soal pelajaran Fisika menggunakan Excel. Dilakukan pengabdian kepada masyarakat tentang pembelajaran menggunakan spreadsheet excel dalam menyelesaikan soal-soal pelajaran Fisika bagi siswa-siswi di Sekolah Menengah Pertama (SMP) Kesatrian 2 Semarang. Tujuannya untuk menambah pengetahuan para siswa tentang pemanfaatan Excel dalam menyelesaikan soal mata pelajaran Fisika. Materi diberikan secara langsung dari kelompok Pengabdian, dan para siswa menyimak sekaligus mempraktekkan di komputer masing-masing. Pelatihan diselenggarakan pada hari Rabu, tanggal 15 Juni 2022, di Laboratorium Komputer SMP Kesatrian 2 Semarang, yang diikuti 30 siswa-siswi Kelas 8. 25 siswa berpendapat pelatihan Excel ini dapat membantu menyelesaikan soal-soal Fisika. Kata kunci: excel; soal; spreadsheet.ABSTRACTPhysics subject has already been taught in Junior High School. To complete the Physics questions, it is done by calculating manually. Although how to calculate using basic Excel formulas has not been taught yet, it will be quite useful if introduced in Junior High School. Hopefully when in high school, they will get used to completing Physics questions using Excel. Training on how to use Excel Spreadsheets to completing Physics questions was held for students at Kesatrian 2 Junior High School (SMP) Semarang. The purpose is to increase students’s knowledge of using Excel to completing Physics questions. The training content are given directly from the team, while students listen and practice on their computers. The training took place on Wednesday, June 15, 2022, at the Computer Laboratory, attended by 30 students from Grade 8. 25 students think that this Excel training could help completing Physics questions. Keywords: excel; exercise; spreadsheet
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Harvey, Thelma. "Kinesiology Laboratory Manual for Physical Therapy Assistants." Physiotherapy 85, no. 12 (December 1999): 691. http://dx.doi.org/10.1016/s0031-9406(05)61240-0.
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Suryanda, A., N. Sartono, and H. Sa’diyah. "Developing smartphone-based laboratory manual as a learning media." Journal of Physics: Conference Series 1402 (December 2019): 077077. http://dx.doi.org/10.1088/1742-6596/1402/7/077077.
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Irawati, Irawati, and Aziza Putri Ningsi. "Description of Science Process Skills of Physics Education Students of Jambi University on Refraction Material on Concave Lenses Using E-Module." Integrated Science Education Journal 2, no. 1 (January 31, 2021): 34–40. http://dx.doi.org/10.37251/isej.v2i1.124.
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Purpose of study: This study was conducted to determine the science process skills of physics education students for refraction material on a concave lens. The questions discussed in this study are to describe the basic and integrated science process skills of Jambi University physics education students, what are the obstacles faced when the implementation of the e-module basic physics practicum II is applied, what are the solutions to the obstacles faced.
Methodology: This study uses a quantitative approach with descriptive methods. This research was conducted in the Physics Education Laboratory of the Teacher Training and Education Faculty, Jambi University. The sample l in this study were 40 physics education students contracting basic physics II subjects. The sampling technique used in this study was a total sampling technique.
Main findings: With the use of a Manual for Basic Physics 1 practicum in the form of e-module, it can improve students' science process skills. It can be seen from the research results, that the science process skills of physics education students at Jambi University on refraction practicum material on concave lenses
Novelty/Originality of this study: With this research, students are motivated to improve science process skills so that they become more active and more familiar with the concept of learning and can improve learning outcomes. Through this research, students can become more innovative and creative teachers, and can also find out the extent of students' science process skills.
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LELONG, BENOIT. "Ions, electrometers, and physical constants: Paul Langevin's laboratory work on gas discharges, 1896-1903." Historical Studies in the Physical and Biological Sciences 36, no. 1 (September 1, 2005): 93–130. http://dx.doi.org/10.1525/hsps.2005.36.1.93.
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ABSTRACT Based on a detailed analysis of Langevin's laboratory notebooks, this paper shows that his experimental work between 1896 and 1903 was not a sequence of disconnected research topics. The complex of instruments, formulas, and manual operations involved derived from a set of skills unique to Langevin. Significantly, Thomson, Rutherford, and Bloch had trouble reproducing the results Langevin obtained with the techniques he worked out in several laboratories and research schools in Paris and Cambridge. His experiences affected not only his apparatus and technique but also his research agenda, mode of argumentation, and professional strategies. These last included his importation of Cambridge ion physics into Paris, his fight for the acceptance of microphysics by his French colleagues, and his rise to a professorship at the Collèège de France.
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Istiqomah, Endah, Umi Pratiwi, and Ashari Ashari. "Development Free Fall Motion Teaching Aid With Proximity Sensor." Jurnal Inovasi Pendidikan Sains (JIPS) 3, no. 2 (November 30, 2022): 62–68. http://dx.doi.org/10.37729/jips.v3i2.1440.
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The use of manual teaching aid causes inaccurate results. This study aims to realize a valid and effective free fall motion teaching aid based on proximity sensors for physics learning. This research was conducted at the Laboratory of Physics Education Faculty, University of Muhammadiyah Purworejo with the research subjects of five physics education students. This research is a development research using the ADDIE development model with the Analysis, Design, Development, implementation, and Evaluation stages. Data collection techniques in this study were using validation questionnaires and student responses. The results showed that the developed teaching aid resulted in an error in the acceleration of gravity of 9.59 ± 0.42 m/s2 when the value of h= 0.90 m, 9.61 ± 0.43 m/s2 when the value of h= 1.00 m, and 9.74 ± 0.40 m/s2 when the value of h= 1.10 m, while the results of the validation carried out by media experts obtained a percentage of 93% and material experts 98%. Meanwhile, the results of student responses to teaching aid obtained a percentage of 93.33%. Proximity sensor based free fall motion teaching aid are valid and effective for physics learning.
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Tobin, M., and M. Nations. "Whose line is it anyway? A self-training spectral line identification code for plasma physics experiments." Journal of Applied Physics 132, no. 18 (November 14, 2022): 183302. http://dx.doi.org/10.1063/5.0107578.
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The process of associating spectral peaks in emission radiation data with particular charge states of specific elements is a common task in the field of plasma diagnostics in both laboratory and astrophysical settings. Existing techniques for this purpose are often highly manual or can rely heavily on theoretical models and assumptions of plasma parameters. We present a numerical approach to largely automate this process. The approach combines statistics from experimental data with theoretical predictions of transition strengths and observed emission intensity data in order to accomplish the task of spectral line identification in a rigorous, quantitative way, reporting confidence levels in its own predictions for each wavelength. Weighted by this confidence, the method identifies sources of 31 test emission lines in the C-2W device with 99.99% accuracy (compared to manual identification). Similar performance is demonstrated on synthetic datasets and spectroscopic observations of the planetary nebula NGC 6543, with accuracies of between 95% and 100%. The approach is scalable, portable to a wide variety of spectroscopic datasets and significantly faster and more rigorous than manual methods.
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Zhang, L. "Methods in Yeast Genetics — A Laboratory Course Manual." Bioelectrochemistry and Bioenergetics 27, no. 2 (April 1992): 250–51. http://dx.doi.org/10.1016/0302-4598(92)87061-x.
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Mukti, Wiji Aziiz Hari, Suherman Suherman, and Naintyn Novitasari. "Pengembangan Petunjuk Praktikum Berbasis Laboratorium Virtual Pada Pembelajaran Fisika Dasar di Tadris IPA." IJIS Edu : Indonesian Journal of Integrated Science Education 3, no. 1 (January 1, 2021): 86. http://dx.doi.org/10.29300/ijisedu.v3i1.4501.
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AbstrakSetelah lima angka tahun berjalan semenjak tahun 2016, prodi tadris IPA hanya memiliki laboratorium biologi dasar dan kimia dasar., amun belum memiliki laboratorium fisika dasar. Tentu hal ini sangat padahal pembelajaran fisika sangat terkait dengan adanya kegiatan praktikum di laboratorium. Pengadaan laboratorium yang memiliki prosedur panjang dan lama menjadi penghambat pembelajaran fisika. Phet menyediakan banyak simulasi pembelajaran dan dapat digunakan sebagai laboratorium virtual namun tidak memiliki petunjuk penggunaannya. Tujuan penelitian ini adalah untuk mengembangkan petunjuk praktikum berbasis laboratorium virtual pet pada pembelajaran fisika dasar di tadris IPA . Jenis penelitian ialah menggunakan jenis penelitian pengembangan tipe ADDIE, produk yang dikembangkan divalidasi dengan oleh ahli materi ahli, ahli media, ahli bahasa , dosen yang mengajar lalu direvisi sesuai dengan saran kemudian diujicobakan ke lapangan dan dihitung besarnya respon peserta didik dengan menggunakan angket. Hasil yang diperoleh adalah sebagai berikut : bahwa hasil uji kelayakan mendapatkan penilaian dari ahli materi Fisika dasar 1 mendapat penilaian sebesar 85%, dari ahli materi Fisika dasar, ahli bahasa mendapatkan penilaian sebesar 80%, dari ahli media mendapat penilaian sebesar 78%, dari, sedangkan dari penilaian dosen adalah sebesar 88%. Sehingga ketika semua validator ahli dan dosen dijumlakan dan kemudian dirata- rata mendapatkan presentase sebesar 86,2%. Itu artinya adalah bahwa buku petunjuk praktikum yang telah dikembangkan sudah masuk dalam kriteria valid dan sangat layak sehingga dapat digunakan pada uji selanjutnya. Saat uji lapangan skala kecil, tanggapan peserta didik sebesar 81%, sehingga buku petunjuk praktikum yang telah dikembangkan itu termasuk kedalam kategori baik untuk digunakan.AbstractAfter five figures for the year since 2016, the science tadris study program only has basic biology and basic chemistry laboratories., Amun does not yet have a basic physics laboratory. Of course this is very much even though physics learning is closely related to the existence of practicum activities in the laboratory. Procurement of laboratories that have long and long procedures becomes an obstacle to learning physics. Phet provides many learning simulations and can be used as a virtual laboratory but has no instructions for using them. The purpose of this study was to develop virtual pet laboratory-based practical instructions on basic physics learning in science tadris. This type of research is to use the ADDIE type development research type, the product developed is validated by material experts, media experts, linguists, lecturers who teach then revised according to the suggestions then tested in the field and the amount of student response is calculated using a questionnaire. The results obtained are as follows: that the results of the feasibility test get an assessment from the basic physics material expert 1 gets an assessment of 85%, from basic physics material experts, linguists get an assessment of 80%, from media experts get an assessment of 78%, from, while the lecturers' assessment was 88%. So that when all the expert validators and lecturers are added up and then the average is getting a percentage of 86.2%. That means that the practicum manual that has been developed is valid and very feasible so that it can be used in further tests. When a small-scale field test, the response of students was 81%, which means that the practicum manual that had been developed was included in the good category to use.
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Yuste, Rafael, Arthur Konnerth, and Barry R. Masters. "Imaging in Neuroscience and Development, A Laboratory Manual." Journal of Biomedical Optics 11, no. 1 (2006): 019902. http://dx.doi.org/10.1117/1.2150472.
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Masters, Barry R. "Imaging: A Laboratory Manual, by Rafael Yuste, Editor." Journal of Biomedical Optics 16, no. 3 (2011): 039901. http://dx.doi.org/10.1117/1.3562205.
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Abbas, Waseem, and David Masip Rodo. "Computer Methods for Automatic Locomotion and Gesture Tracking in Mice and Small Animals for Neuroscience Applications: A Survey." Sensors 19, no. 15 (July 25, 2019): 3274. http://dx.doi.org/10.3390/s19153274.
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Neuroscience has traditionally relied on manually observing laboratory animals in controlled environments. Researchers usually record animals behaving freely or in a restrained manner and then annotate the data manually. The manual annotation is not desirable for three reasons; (i) it is time-consuming, (ii) it is prone to human errors, and (iii) no two human annotators will 100% agree on annotation, therefore, it is not reproducible. Consequently, automated annotation for such data has gained traction because it is efficient and replicable. Usually, the automatic annotation of neuroscience data relies on computer vision and machine learning techniques. In this article, we have covered most of the approaches taken by researchers for locomotion and gesture tracking of specific laboratory animals, i.e. rodents. We have divided these papers into categories based upon the hardware they use and the software approach they take. We have also summarized their strengths and weaknesses.
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Kalsum, Umi, and Apit Fathurohman. "Analysis of Student Responses to Matlab Applications in Physics Learning in High Schools." Jurnal Pendidikan Fisika dan Teknologi 9, no. 1 (June 10, 2023): 64–69. http://dx.doi.org/10.29303/jpft.v9i1.4491.
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The development and presence of computer technology have made it easy for various parties to use it in life, including education, to support education. Physics is a branch of natural science. In learning physics, technology is needed in the learning process. One assistive software that can be used in learning physics is the Matrix Laboratory (MATLAB). This program can improve speed and accuracy in various calculations in learning. So that the time needed to work on it is more efficient and the results are better obtained more accurately than the calculations done manually. The purpose of this study was to describe and analyze students' responses to the application of MATLAB in physics learning. The data collection method used in this research is questionnaires with unstructured interview techniques assisted by the Google form application. The respondents used in the study were 10 class X students at UPT SMA Negeri 1 Ogan Komering Ilir. The results of data collection and analysis were descriptive and qualitative. The percentage of data obtained was analyzed using existing categories. The research results show that all aspects of the proportion of student responses are 83% with very good scores; this means that the MATLAB application is effectively used for learning physics.
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Быкова, Валентина Прохоровна, and Valentina Prokhorovna Bykova. "Application of training and methodological complex Electrical Engineering." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2019, no. 4 (November 15, 2019): 130–40. http://dx.doi.org/10.24143/2073-1574-2019-4-130-140.
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The paper presents the laboratory practicum on electrical engineering and physics worked out on the basis of the teaching guide on electrical engineering including 5 test benches.
It includes 24 laboratory works with elements of independent research. The detailed and illustrated test benches of the training complex are the following: Electrical Engineering and Electronics, Electric Machines and Electric Drive, Electric Machine Assembly, Electric Energy, its Transmission and Quality, Principles of Electrical Safety. Some stands are connected to a software and hardware complex designed for measuring the studied values, reflection and processing of analog signals. The compactness and versatility of the training complex Electrical Engineering are noted; one can do 6–9 laboratory works on electrical engineering and physics at one stand. Mathematical calculations of the readings are recommended to perform in Mathcad computer algebra system.
A manual based on the laboratory works, which contains general safety rules, guidelines for per-forming tasks and requirements for their processing, is now under consideration. The advantages
of the elaborated laboratory workshop have been listed; the educational, developmental, pedagogical tasks for solving at the lesson have been analyzed; a laboratory work “Three-phase circuit connection in star scheme” is given as an example. The diagram of a star connection is presented;
a vector diagram of linear and phase voltages relations in a star connection is built. The oscillo-grams of currents under symmetrical load are illustrated. It has been noted that the individual tasks have an exploratory nature, they develop cognitive, independent and creative skills of students. The proposed methodological guidelines are recommended for specialists and bachelors in such areas as “Ship and Power Plants”, “Shipbuilding”, “Heat and Power Engineering and Heat Engineering”, etc., and can be used by teachers of general engineering disciplines
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Nazarenko, Alexander Y. "Optical Sensors for Manual and Automatic Titration in Undergraduate Laboratory." Spectroscopy Letters 43, no. 7-8 (October 25, 2010): 555–60. http://dx.doi.org/10.1080/00387010.2010.510705.
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Sartono, N., A. Suryanda, and H. Sa’diyah. "Laboratory manual based on smartphone application in increasing students’ psychomotoric learning outcome." Journal of Physics: Conference Series 1402 (December 2019): 077078. http://dx.doi.org/10.1088/1742-6596/1402/7/077078.
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Sharp, C. "Kinanthropometry and Exercise Physiology Laboratory Manual. Tests, procedures and data." British Journal of Sports Medicine 30, no. 2 (June 1, 1996): 186. http://dx.doi.org/10.1136/bjsm.30.2.186.
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Kittler, L. "Methods for Investigating Nucleo-Cytoplasmic Transport of RNA. A Laboratory Manual." Bioelectrochemistry and Bioenergetics 23, no. 2 (April 1990): 212–13. http://dx.doi.org/10.1016/0302-4598(90)85011-6.
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Grant, Katharyn A. "Evaluation of Grip Force Exertions in Dynamic Manual Work." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 38, no. 10 (October 1994): 549–53. http://dx.doi.org/10.1177/154193129403801002.
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An obstacle to the development of guidelines for reducing forceful hand movements is that manual force is not easily measured or estimated at the worksite, especially during highly dynamic activities. Grip force requirements during manual work are dependent not only on object weight, but also on the surface characteristics of the object and the task dynamics. In theory, it is possible to predict grip force requirements for manual tasks using Newtonian laws of physics; however few researchers have attempted to measure grip force during dynamic work, much less to compare actual grip force values to predicted levels. Therefore, a laboratory experiment was conducted to examine grip force exertions during two simulated industrial tasks. In each task, participants repetitively grasped and moved aluminum handles against varying levels of weight or resistance. Grip force was measured using a strain gauge mounted inside the handles. Results indicate that grip force varied continuously throughout each work cycle in response to changes in the motion of the hand/handle. The pattern of variation was consistent between subjects and could be approximated by a sinusoidal model. Greater interindividual variation in grip force exertion was observed when the task allowed greater flexibility in selecting a movement strategy. The results also indicate that subjects are more likely to “overshoot” the necessary grip force (i.e., apply more force than needed) at the initiation of movement, especially at lower weight levels. This study demonstrates that it is possible to predict variations in grip force during dynamic work, although further refinements in the procedure are needed. Use of modelling techniques will enable industrial designers to better estimate grip force requirements and to identify design strategies that will reduce the risk of musculoskeletal injury to the worker.
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Subiyanto, A. P., M. T. Asy’ari, and C. A. Hapsoro. "Focus Control System of a Celestron 2000 Telescope Based on Arduino for Remote Observations in Astronomy Laboratory Department of Physics Universitas Negeri Malang." Journal of Physics: Conference Series 2377, no. 1 (November 1, 2022): 012034. http://dx.doi.org/10.1088/1742-6596/2377/1/012034.
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A star telescope is a device in the field of astronomy that serves to observe celestial objects. The use of telescopes in the Astronomy Laboratory, Department of Physics, State University of Malang, is still conventional. Its use is limited to direct and scheduled observations in the laboratory. The use of such telescopes makes the use of telescopes less effective and efficient, especially during a pandemic when the online learning system is still in effect. This research has been developed with the title “Development of Introductory Astronomy Learning Innovations with Telescope Access Practicum and Online-Based Reporting”. The telescope used in this research is the Celestron 2000 Telescope, one of the telescopes used in astronomical research at the Department of Physics, State University of Malang. Overall, the system in this study was good enough for online-based practicum learning. However, there are still shortcomings, and further improvements need to be made to the camera resolution and focus setting system, which is still manual. Thus, it is necessary to follow up on this research and focus on improving the focus-setting system. The method used is to program the Arduino serial monitor stepper motor so that it can be ordered to move clockwise or counterclockwise. The researcher creates the Windows desktop application with the help of Visual Studio 2022 to make it easier to order Arduino serial monitors without entering the Arduino IDE application. The test results show that the system can produce good image focus by using the commands that have been made. This system is computer-based, so the practice of observing celestial bodies uses the internet network and can be accessed online.
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Muhammad, Muhammad, Beny Ragadita, Soni Prayogi, and Saminan Saminan. "Design of an optical rotation value measurement tool using an arduino device." Jurnal Pijar Mipa 18, no. 5 (September 30, 2023): 753–58. http://dx.doi.org/10.29303/jpm.v18i5.4811.
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Malus' law asserts that the square of the cosine of the angle formed between two polarizers is directly proportional to the light intensity after passing through them. In this study, we demonstrate this law using a straightforward configuration. Our method of measuring the polarizer's rotational angle while keeping the other polarizer stationary is innovative. It involves manually attaching a multi-turn potentiometer to one of the polarizers. The Arduino board is connected to the potentiometer and light sensor used to detect the intensity of transmitted light, allowing for the measurement of light intensity as a function of rotational angle. Additionally, we think that the configuration as it is now can be helpful in physics laboratory classes. It can also be demonstrated by using it during lectures.
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de Aragão Aleksandravicius, Gabriel, Ana Clara Loureiro Cruz, Carolina Niklaus Moreira da Rocha Rodrigues, Gabriela Lemos Lúcidi Pinhão, Pedro Henrique Goes Afonso, Rodrigo Coura Torres, and José Manoel Seixas. "Enhancing data consistency in ATLAS and CERN HR databases through automated synchronization." EPJ Web of Conferences 295 (2024): 05004. http://dx.doi.org/10.1051/epjconf/202429505004.
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As the largest particle physics laboratory in the world, it is no surprise that CERN has a vast network of thousands of collaborators spread globally. Among CERN’s experiments, ATLAS stands out with over 6,000 active members and 300 associate institutes. This extensive community must go through the standard registering and maintenance procedures within CERN’s human resources database, called Foundation. Simultaneously, the Glance system, among other specific functions, also aims to fulfill the same objectives within the context of different CERN experiments, such as ATLAS, LHCb and ALICE. It achieves that by having its own database. Since members need to exist in the two databases, a lot of data was being duplicated. Manual updates by the ATLAS secretariat became necessary to maintain consistency over members and institutes data, such as names, employment information and authorship status. Today, the Glance system undergoes a transformative process to redefine its relationship with Foundation. The goal is to eliminate duplication of data by establishing a single source of truth. At the same time, the automation of a series of internal processes will be made to ensure synchronization between the two databases at all times, thus removing the need for manual intervention from the ATLAS secretariat. This requires some restructuring to Glance’s database, updates to the code and overall implementation of new tools that facilitate seamless communication with Foundation.
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Iranzo, Sofía, Alicia Piedrabuena, Fernando García-Torres, Jose Luis Martinez-de-Juan, Gema Prats-Boluda, Mercedes Sanchis, and Juan-Manuel Belda-Lois. "Assessment of a Passive Lumbar Exoskeleton in Material Manual Handling Tasks under Laboratory Conditions." Sensors 22, no. 11 (May 27, 2022): 4060. http://dx.doi.org/10.3390/s22114060.
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Manual material handling tasks in industry cause work-related musculoskeletal disorders. Exoskeletons are being introduced to reduce the risk of musculoskeletal injuries. This study investigated the effect of using a passive lumbar exoskeleton in terms of moderate ergonomic risk. Eight participants were monitored by electromyogram (EMG) and motion capture (MoCap) while performing tasks with and without the lumbar exoskeleton. The results showed a significant reduction in the root mean square (VRMS) for all muscles tracked: erector spinae (8%), semitendinosus (14%), gluteus (5%), and quadriceps (10.2%). The classic fatigue parameters showed a significant reduction in the case of the semitendinosus: 1.7% zero-crossing rate, 0.9% mean frequency, and 1.12% median frequency. In addition, the logarithm of the normalized Dimitrov’s index showed reductions of 11.5, 8, and 14% in erector spinae, semitendinosus, and gluteus, respectively. The calculation of range of motion in the relevant joints demonstrated significant differences, but in almost all cases, the differences were smaller than 10%. The findings of the study indicate that the passive exoskeleton reduces muscle activity and introduces some changes of strategies for motion. Thus, EMG and MoCap appear to be appropriate measurements for designing an exoskeleton assessment procedure.
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Baumkircher, Aljaz, Katja Seme, Marko Munih, and Matjaž Mihelj. "Collaborative Robot Precision Task in Medical Microbiology Laboratory." Sensors 22, no. 8 (April 8, 2022): 2862. http://dx.doi.org/10.3390/s22082862.
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This study focuses on the feasibility of collaborative robot implementation in a medical microbiology laboratory by demonstrating fine tasks using kinesthetic teaching. Fine tasks require sub-millimetre positioning accuracy. Bacterial colony picking and identification was used as a case study. Colonies were picked from Petri dishes and identified using matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometry. We picked and identified 56 colonies (36 colonies of Gram-negative Acinetobacter baumannii and 20 colonies of Gram-positive Staphylococcus epidermidis). The overall identification error rate was around 11%, although it was significantly lower for Gram-positive bacteria (5%) than Gram-negative bacteria (13.9%). Based on the identification scores, it was concluded that the system works similarly well as a manual operator. It was determined that tasks were successfully demonstrated using kinesthetic teaching and generalized using dynamic movement primitives (DMP). Further improvement of the identification error rate is possible by choosing a different deposited sample treatment method (e.g., semi-extraction, wet deposition).
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Yang, Xiaoyu, Yuekun Heng, Zhiqiang Chen, Cunfeng Wei, Zhiming Zhang, and Long Wei. "The automatic measurement system for internal stress of acrylic." Journal of Instrumentation 18, no. 03 (March 1, 2023): P03044. http://dx.doi.org/10.1088/1748-0221/18/03/p03044.
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Abstract The manual measurement system for internal stress of acrylic was designed and realized, which is based on photo-elastic principle and spectrometric method. The manual measurement system can support mobile and quantitative measurement, and plays an important role in the fields of material research and engineering project. With the extensive application of the stress measurement system, automation is required to promote measuring efficiency and overcome the shortcomings of the manual measurement system. Electric control turntable was chosen as the key component for automation and adopted in the automatic measurement system. The automatic measurement system is controlled by program and user interface for operation has also been improved. The automatic measurement system has been realized and used for measuring internal stress of acrylic in the laboratory, which achieved the expected effect. The components of the automatic measurement system, the user interface for control program and data processing, and the stress measurements of the acrylic samples by the automatic measurement system are discussed in this article.
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MIRANDA, MARCELA, POLIANA C. SPRICIGO, and MARCOS D. FERREIRA. "Mechanical damage during harvest and loading affect orange postharvest quality." Engenharia Agrícola 35, no. 1 (February 2015): 154–62. http://dx.doi.org/10.1590/1809-4430-eng.agric.v35n1p154-162/2015.
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Brazil is the world’s largest orange producer; however, part of this production is lost during postharvest. This loss can be minimized by controlling incidence of physical damage throughout the harvest and loading operations. Impacts can negatively modify quantitative and qualitative fruits aspects. The main goal of this study was to measure the impact magnitude in two types of harvest (manual and detachment) and during all steps from picking into bags until loading for transport to the processing industry and additionally evaluating, in laboratory, the physico-chemical quality of the fruit subjected to various impacts, similar to those found in the field. In order to evaluate the impact magnitude, an instrumented sphere was used (760 mm, Techmark, Inc, USA). The following physico-chemical parameters were evaluated during 6-days of storage: weight loss, soluble solids contents, titratable acidity, ascorbic acid content, pH, firmness and peel color. The greatest impacts were observed during harvest, during the detachment practice, and when loading and unloading from bulk storage, with average acceleration values between 249.5 and 531.52G. The impact incidence in oranges were responsible for reducing the soluble solids, titratable acidity, ascorbic acid and weight by to 5.5%; 8.7%; 4.6% and 0.5%, respectively, compared to the control. Impacts during harvest and the various pre-industry manipulation steps must be controlled as they interfere in postharvest quality and physiology of ‘Valência’ oranges.
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Marty, Melissa C., Jolene M. Henning, and John T. Willse. "Accuracy and Reliability of Peer Assessment of Athletic Training Psychomotor Laboratory Skills." Journal of Athletic Training 45, no. 6 (November 1, 2010): 609–14. http://dx.doi.org/10.4085/1062-6050-45.6.609.
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Abstract Context: Peer assessment is defined as students judging the level or quality of a fellow student's understanding. No researchers have yet demonstrated the accuracy or reliability of peer assessment in athletic training education. Objective: To determine the accuracy and reliability of peer assessment of athletic training students' psychomotor skills. Design: Cross-sectional study. Setting: Entry-level master's athletic training education program. Patients or Other Participants: First-year (n = 5) and second-year (n = 8) students. Main Outcome Measure(s): Participants evaluated 10 videos of a peer performing 3 psychomotor skills (middle deltoid manual muscle test, Faber test, and Slocum drawer test) on 2 separate occasions using a valid assessment tool. Accuracy of each peer-assessment score was examined through percentage correct scores. We used a generalizability study to determine how reliable athletic training students were in assessing a peer performing the aforementioned skills. Decision studies using generalizability theory demonstrated how the peer-assessment scores were affected by the number of participants and number of occasions. Results: Participants had a high percentage of correct scores: 96.84% for the middle deltoid manual muscle test, 94.83% for the Faber test, and 97.13% for the Slocum drawer test. They were not able to reliably assess a peer performing any of the psychomotor skills on only 1 occasion. However, the ϕ increased (exceeding the 0.70 minimal standard) when 2 participants assessed the skill on 3 occasions (ϕ = 0.79) for the Faber test, with 1 participant on 2 occasions (ϕ = 0.76) for the Slocum drawer test, and with 3 participants on 2 occasions for the middle deltoid manual muscle test (ϕ = 0.72). Conclusions: Although students did not detect all errors, they assessed their peers with an average of 96% accuracy. Having only 1 student assess a peer performing certain psychomotor skills was less reliable than having more than 1 student assess those skills on more than 1 occasion. Peer assessment of psychomotor skills could be an important part of the learning process and a tool to supplement instructor assessment.
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Fu, Hsiao-Ting, Hui-Zin Tu, Herng-Sheng Lee, Yusen Eason Lin, and Che-Wei Lin. "Evaluation of an AI-Based TB AFB Smear Screening System for Laboratory Diagnosis on Routine Practice." Sensors 22, no. 21 (November 4, 2022): 8497. http://dx.doi.org/10.3390/s22218497.
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The most robust and economical method for laboratory diagnosis of tuberculosis (TB) is to identify mycobacteria acid-fast bacilli (AFB) under acid-fast staining, despite its disadvantages of low sensitivity and labor intensity. In recent years, artificial intelligence (AI) has been used in TB-smear microscopy to assist medical technologists with routine AFB smear microscopy. In this study, we evaluated the performance of a TB automated system consisting of a microscopic scanner and recognition program powered by artificial intelligence and machine learning. This AI-based system can detect AFB and classify the level from 0 to 4+. A total of 5930 smears were evaluated on the performance of this automatic system in identifying AFB in daily lab practice. At the first stage, 120 images were analyzed per smear, and the accuracy, sensitivity, and specificity were 91.3%, 60.0%, and 95.7%, respectively. In the second stage, 200 images were analyzed per smear, and the accuracy, sensitivity, and specificity were increased to 93.7%, 77.4%, and 96.6%. After removing disqualifying smears caused by poor staining quality and smear preparation, the accuracy, sensitivity, and specificity were improved to 95.2%, 85.7%, and 96.9%, respectively. Furthermore, the automated system recovered 85 positive smears initially identified as negative by manual screening. Our results suggested that the automated TB system could achieve higher sensitivity and laboratory efficiency than manual microscopy under the quality control of smear preparation. Automated TB smear screening systems can serve as a screening tool at the first screen before manual microcopy.
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Caprio, Leonardo, Giulio Borzoni, Barbara Previtali, and Ali Gökhan Demir. "Hand-Held Laser Welding of AISI301LN for components with aesthetic requirements: Toward the integration of machine and human intelligence." Journal of Laser Applications 35, no. 1 (February 2023): 012008. http://dx.doi.org/10.2351/7.0000746.
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The use of Hand-Held Laser Welding (HHLW) systems in the industry has been rapidly growing in recent years as an alternative solution to conventional manual arc-based welding systems. The decreasing cost of fiber laser sources and optics has been a driving factor in enabling a wider use of HHLW systems, beyond the established advantages of laser technology with respect to arc-based systems. While the industrial use of HHLW increases, the subject matter has been studied sparingly in the scientific literature. Due to the intrinsic flexibility of the technology, HHLW systems are highly appealing for joining relatively low thickness metals (≤2 mm) in autogenous configuration in sectors where production lots present low batch and high variability. However, a critical aspect of HHLW is correlated to the operator skill, where welding velocities can vary within and between the welds affecting both their aesthetic and mechanical properties. Hence, the development of combined digital and physical approaches to support manual operations may be highly beneficial. The current study presents an open laboratory HHLW system designed for process development purposes. Beyond conventional manual welding operations, the welding torch could be arranged in different configurations. The system could be combined with a linear axis (enabling welding with stable velocity and inclination) or manually with the aid of a newly developed roller device designed to provide constant speed and inclination. First, the process was benchmarked by joining in butt weld configuration 2 mm thick AISI301LN stainless steel sheets with the linear axis. Successively, four operators with different levels of training (rookie and professional) realized welds with the system in hand-held configuration and with the mechanical roller. The weld width variability was assessed as a direct indicator for aesthetic compliance while tensile tests were allowed to determine the mechanical properties of the joint obtained with different configurations.
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Ackland, T. "Kinanthropometry and exercise physiology laboratory manual, 2nd edition. Volume 1: Anthropometry; Volume 2: Exercise physiology." British Journal of Sports Medicine 39, no. 5 (May 1, 2005): 308. http://dx.doi.org/10.1136/bjsm.2004.005777.
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