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Physics Communication
Published by Universitas Negeri Semarang
ISSN : 25285971     EISSN : 2528598X     DOI : https://doi.org/10.15294/physcomm
Core Subject : Science,
Physics
Physics Communication is devoted to reporting important new developments in the area of physics. Papers cover the fields of: atomic and molecular physics condensed matter and theory of statistical physics nuclear theory fluid theory and plasmas elementary particle physics and quantum field theory quantum mechanics and quantum optics theoretical astrophysics cosmology relativity Certain new interdisciplinary subjects such as theoretical biophysics, mathematical physics and computational physics are also incorporated.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 6 Documents
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Search results for , issue "Vol 7, No 2 (2023): August 2023" : 6 Documents clear
The Effectiveness of Forming a Pancasila Student Profile by Implementing a Project Based Learning Model on Newton's Law Material Tri Maria Wea; Putut Marwoto; Ellianawati Ellianawati
Physics Communication Vol 7, No 2 (2023): August 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v7i2.42174

Abstract

This study aims to find the effectiveness of forming a Pancasila student profile by applying a project based learning model in the physics learning process for Newton's Law material in class X MIPA students at SMAN 1 Bajawa. The dimensions of the Pancasila Student Profile include three dimensions, namely the ability to think critically, creatively, and mutual cooperation. This type of research is a mixed method sequential explanatory. Data collection instrument were tests and observation guidelines. The results of the data analysis show that the project based learning model contains Pancasila student profile values. Based on the research data, it was obtained that the students’ abilities on the Pancasila student profile is in the good category. The ability to critical thinking and crietive thinking has increased and can foster an attitude of mutual cooperation in students after being treated using a project based learning model. The N-gain value of critical thinking is 64.3% and classic completeness is 93%, the N-gain creative thinking increases by 68.5% and classic completeness is 90%, the students' cooperative attitude is 83% in the good category. This shows that the project based learning model that was implemented is effective in strengthening the profile of Pancasila students.  The class control uses the  PBL model N-gain value of critical thinking was 57.7%, the N-gain creative thinking increased by 53.3%, the mutual cooperation attitude of the students was in the with the medium category.
Photonic Crystals based Biosensors in Various Biomolecules Applications Eunike Friska Defvi; Lita Rahmasari
Physics Communication Vol 7, No 2 (2023): August 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v7i2.43447

Abstract

Over the past decades, photonic crystals have emerged as interesting photonic structures. It plays a vital role in many fields of optical communication, biomedical sensing, and other applications due to its compactness, high sensitivity, high selectivity, fast responsiveness, etc. Strong light confinement in photonic crystals and adjustment of its geometrical parameters have led to the emergence of photonic crystal biosensors. Biosensors are extensively employed for diagnosing a broad array of diseases and disorders in clinical settings worldwide. Photonics crystal-based biosensor is one of the solutions to detect various diseases. By using literature review method, this paper aims to explore applications of photonic crystal-based biosensors to encounter the sensitivity of various biomolecules for cancer, malaria, and blood components detection.
Rasch Model Analysis: Development of Literacy Numeracy Assessment Instrument of Electromagnetic Induction Nurul Apriani Susanti; Sarwi Sarwi; Mahardika Prasetya Aji
Physics Communication Vol 7, No 2 (2023): August 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v7i2.46019

Abstract

This research aimed to describe the validity of a numeracy literacy assessment instrument of electromagnetic induction based on minimum capability assessment (MCA) which was develop using Rasch model analysis assisted by Winstep software. The research employed the research and development design with a modified Mardapi model. The instrument was constructed by developing fifteen questions. The analysis of the instrument was utilized to measure the construct and item validity, reliability, item difficulty level, and item discriminatory. This research involved 32 participants in the small-scale test and 206 participants in the large-scale trial. The test result showed that the fifteen questions were suitable to use because it has values that meet the criteria for all measurement variables both on small scale and large-scale tests and could be assess students' numeracy literacy skills.
The Growth of Vocational High School Students' 4C Skills on the Use of PjBL STEM-Based Physics Digital Module Mugi Lestari; Supriyadi Supriyadi; Sulhadi Sulhadi
Physics Communication Vol 7, No 2 (2023): August 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v7i2.38403

Abstract

The Partnership for 21st Century Learning (P21) developed the Framework for 21st Century Learning to help education practitioners integrate skills into lesson teaching. This framework describes the skills, knowledge, and expertise that students must master in order to succeed in work and life. One of the skills that must be mastered by students in facing the 21st century is the 4C skill which consists of critical thinking, communication, collaboration, and creativity skills. This study aims to analyze the growth of the 4C skills of SMK students as the effect of implementing the use of PjBL STEM-based digital physics modules. This research is an experimental study with the before-after method, which compares the conditions before and after the implementation of learning activities. Data was collected by filling out a questionnaire with a Likert scale by students. The results showed that the 4C skills of vocational high school students grew significantly.
Symmetry Energy in the Inner Crust Region of Neutron Stars: A Study Around the Neutron Drip Density Point using the Compressed Liquid Drop Model Eko Tri Sulistyani; Yusuf Panji Wisnuaji; Romy Hanang Setya Budhi
Physics Communication Vol 7, No 2 (2023): August 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v7i2.47139

Abstract

The properties of neutron star’s inner crust have been investigated using the Compressible Liquid Drop Model, particularly around the neutron drip density region, which is the boundary between the outer and inner crust. Symmetry energy in the equations of state SLy4 and BSk3 was calculated to determine the density data between the outer and inner crusts.  The properties of the inner crust can be understood through parameters such as the change in the number of nucleons in the atomic nucleus, the asymmetry parameter in surface energy, and volume energy. It was shown that the choice of the symmetry energy expansion coefficient (L) of order-1 results in a distinct energy range of 9-11 MeV within the neutron drip region. This contrasts significantly with the energy symmetry observed around saturation density, which reaches (30 ± 4) MeV in the reference models used. Furthermore, it was found that symmetry energy affects the neutron composition in the inner crust. As the density increases, neutron numbers rise, while proton counts exhibit relative stability within the range of 40 to 50 for each atomic nucleus. Importantly, we observe a marked decrease in proton fraction at the onset of the neutron drip region, where ???? ≅10 MeV, suggesting electron capture processes transforming protons into neutrons. This phenomenon contributes to the presence of neutron and free neutron gas layers within the inner crust.
Dyeing Jumput Batik Using Clay Media From the Malo Region, Bojonegoro Henny Indah Pratiwi; Fianti Fianti; Ian Yulianti
Physics Communication Vol 7, No 2 (2023): August 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v7i2.41544

Abstract

Indonesian clay, with red color type was one kind of clay with wide distribution and yet to be well managed. The clay can be used as natural coloring material as a substitute for the textile dyes. This study aims to determine the effect of soaking time on the color produced and the effect of clay solution composition on the color produced. The variable used in this research is the variation of the solution composition (1kg/ 1 L, 1kg/ 2L, 1kg/ 3L) and variation of soaking time (24 hours, 48 hours, and 72 hours). The results of the research show that on the solution composition variation obtained the most concentrated color at 1kg/ 1L solution, and at the soaking time variation obtained the most concentrated color at 72 hours with the intensity of light that can penetrate the fabric is very small.

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