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<![CDATA[UJI KELAYAKAN SISTEM PEMBELAJARAN TERPADU (SIPANTER) BERBASIS MOODLE ]]>
<![CDATA[Syamsul Bahri]]>;
<![CDATA[Mitra Rahayu]]>;
<![CDATA[Merta Simbolon]]>
<![CDATA[ Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sultan Ageng Tirtayasa ]]>
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DOI: 10.30870/gravity.v7i1.9565
<![CDATA[Moodle-based Learning System Development or sistem pembelajaran terpadu (SiPanTer) aims to determine the feasibility of e-learning being developed. The feasibility of e-learning is based on expert validation results, namely information and communication engineering experts. The research and development model used is the Borg and Gall model adapted by Sugyono. The research and development stage consists of 10 steps, namely 1) analysis of potential and problems; 2) data collection; 3) product design; 4) design validation; 5) design revision; 6) product trials; 7) product revision; 8) trial use; 9) product revision; and 10) products. The data collection technique was carried out using expert validation sheets and teacher and lecturer response questionnaires with descriptive quantitative analysis techniques. The analysis of validator assessments and the responses of teachers and lecturers in limited trials and extensive trials state that the e-learning developed is suitable for general use, both on campus and at school, especially in Merauke Regency.]]>
<![CDATA[Kuis Kahoot Media Interaktif dalam Mengetahui Peningkatan Pemahaman Materi Metode Numerik Fisika Oseanografi Berbasis Pemograman Mathlab ]]>
<![CDATA[Muhammad Fikry Syach]]>
<![CDATA[ Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sultan Ageng Tirtayasa ]]>
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DOI: 10.30870/gravity.v7i1.9673
<![CDATA[This study aims to improve the practical understanding of the numerical method of oceanographic physics based on Mathlab software to calculate the roots of the Airy wave equation through the Kahoot application as an interactive media. This study used a population of 3 classes totaling 105 people. The determination of the increase in quiz scores with and without the Kahoot application was analyzed using the basic statistical comparison method, Independent T-Test Comparison (Intecomp) testing, as well as analysis of the distribution of the increase in quiz scores per class and per, mean predicate with a weighted scale of 4. The average score of the quiz scores without Kahoot 76.28; with Kahoot 84.96; the Intecomp P-Value test results 6,1.10-6 (α = 0.05), a significant increase in quiz scores from the use of the Kahoot application. The distribution of data for the increase in weighted quiz scores is 9.63%; As for the distribution of the rise in the average quiz score per class was 5.42%. Based on the statistical analysis test, it can be concluded that the use of the Kahoot application as an interactive media can increase the practitioner's understanding of the mathematical physics numerical method of oceanography based on Matlab.]]>
<![CDATA[Implementation of problem based learning with cmaptools media to increase problem solving abilities ]]>
<![CDATA[Desy Eka Muliani]]>
<![CDATA[ Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sultan Ageng Tirtayasa ]]>
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DOI: 10.30870/gravity.v7i1.9136
<![CDATA[This study aims to analyze the comparison of increasing the problem solving ability between groups of students who get problem-based learning with cmaptools media, and groups of students who get conventional learning. The research method used was a quasi experiment with the Randomized Control Group Pretest-Posttest design and descriptive method. The instruments used include: problem solving ability test. The improvement of problem solving ability is determined through the average N-gain. The results of the calculation of the average N-gain obtained that the average N-gain group of students who get problem-based learning with cmaptools is 0.78 (high category), while the average N-gain group of students who get conventional learning is 0.68 (medium category). The results of statistical tests (t-test) show that problem-based learning with cmaptools can further improve problem-solving abilities compared to conventional learning.]]>
<![CDATA[Pengaruh ekstrak jintan hitam (Nigella sativa) terhadap kadar SGPT hepar tikus (Rattus norvegicus) yang diinduksi Piroxicam ]]>
<![CDATA[Septiana Kurniasari]]>;
<![CDATA[Moch. Haikal]]>
<![CDATA[ Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sultan Ageng Tirtayasa ]]>
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DOI: 10.30870/gravity.v7i1.10180
<![CDATA[Piroxicam is a non-steroidal anti-inflammatory drug (NSAID) that can cause side effects on the liver. If the liver is affected by side effects from using Piroxicam, it can cause cell damage so that the hepatic organs' function and work are disturbed. The biomarker of liver damage is the SGPT level. An increase in the SGPT ratio indicates serious liver damage. One way to minimize liver damage is by giving antioxidants. One of the many herbal plants used to prevent or treat various diseases is black cumin (Nigella sativa). This study aimed to analyze the effect of black cumin extract on the liver SGPT levels of Piroxicam-induced rats. Eighty male mice were used in this study and were divided into three groups, namely the negative control group (K-), Piroxicam non-extract (P-), and Piroxicam plus extract (P +). Black cumin extract is given orally at a dose of 2 gr / kgBW; 3 gr / kgBB; 4 gr / kgBB; 5 gr / kg body weight and 6 g / kg body weight, while the Piroxicam dosage given is 1 g / kg and 3 g / kg body weight. The results showed that the more Piroxicam doses were given, the higher the SGPT level. Along with the increase in the dose of black cumin extract, the SGPT level is reduced.]]>
<![CDATA[Analisi Pengaruh Kebisingan terhadap Kinerja Pandai Besi dengan Regresi Linier ]]>
<![CDATA[Amalia Ma'rifatul Maghfiroh]]>;
<![CDATA[Zainudin Zainudin]]>;
<![CDATA[Alfian Bima Chandra]]>;
<![CDATA[Arum Sulistyorini]]>
<![CDATA[ Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sultan Ageng Tirtayasa ]]>
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DOI: 10.30870/gravity.v7i1.9453
<![CDATA[Noise in itself can be harmful or dangerous to health. The research objectives were to determine the noise value generated by blacksmiths and analyze the effect of noise levels on blacksmith performance. The research was conducted by direct observation and giving questionnaires to respondents. Data processing using the t-test to determine the level of noise and its effect on blacksmiths. This study's conclusion is the level of significant difference with the Threshold Value (NAV) set by the government, which is 99.328 dB (A). Meanwhile, the government's NAV for the work area (industry) is 85 dB (A). The simple linear regression analysis results indicate that noise in the blacksmith's work area has no significant effect on employee performance. This is shown from the test results of simple linear regression analysis through the t-test, obtained t count of -0.365 smaller than t table of 2.069 or the number sig. equal to 0.719, which is greater than α of 0.05.]]>
<![CDATA[The utilization of microalgae as an agent for converting CO2 to O2 in a photosynthesis reactor to mitigate CO2 emissions ]]>
<![CDATA[Mahendra Satria Hadiningrat]]>;
<![CDATA[Eggi Aunur Rofiq]]>
<![CDATA[ Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sultan Ageng Tirtayasa ]]>
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DOI: 10.30870/gravity.v7i1.9210
<![CDATA[A closed photobioreactor design has been fabricated, aiming to determine the basic concept for microalgae Chlorella Vulgaris development. This study employed a flat-plate type with dimensions of 16x20x25 cm with the effectiveness of 3000 ml culture media and two 20 Watt 220 Volt Tungsten Halogen lamps, which were placed on the right and left sides of the reactor with a light intensity of 1000 lux. This study employed two photobioreactors, type I without CO2 supply and type II with CO2 supply as much as 25%. The initial cell density of Chlorella Vulgaris culture was 14,694 x105 cells/ml; then observations were made every day using a Haemocytometer. O2 concentration data were collected every day 3 times with irradiation time of 1, 6, and 9 hours using the O2 gas sensor (KE-50 type). The determination of the O2 concentration value in the photobioreactor on the 3rd day was 0.69%]]>
<![CDATA[Pengaruh ekstrak temulawak (Curcuma xanthorrhiza) terhadap kerusakan sel usus halus mencit (Mus musculus) yang diinduksi Piroxicam ]]>
<![CDATA[Moch. Haikal]]>;
<![CDATA[Septiana Kurniasari]]>
<![CDATA[ Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sultan Ageng Tirtayasa ]]>
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DOI: 10.30870/gravity.v7i1.10181
<![CDATA[Piroxicam is a non-steroidal anti-inflammatory drug (NSAID) widely used as an analgesic and anti-inflammatory in rheumatoid arthritis, osteoarthritis. However, Piroxicam can cause gastrointestinal side effects and peptic ulcers when given orally. Piroxicam can also cause cholestasis. Also, if Piroxicam is used continuously in high doses, it can cause damage to the small intestine. A compound can minimize small intestinal cell damage called an antioxidant. This study aims to analyze the effect of curcumin extract (Curcuma xanthorrhiza) on Piroxicam-induced damage to mice's small intestinal cells (Mus musculus). This study used 80 male mice and divided into 3 groups, namely negative control (K-), negative Piroxicam (P-) and positive Piroxicam (P +). Giving ginger extract given orally at a dose of 1.4 gr / kgBW; 2.0 gr / kgBW; 2.6 gr / kgBW; 3.2 g / kg BW and 3.8 g / kg BW, while the Piroxicam dosage used was 10 mg / kg BW and 30 mg / kg BW. The results showed that the more Piroxicam doses were given, the higher the level of small intestinal cell damage. Along with increasing the dosage of ginger extract, the level of damage to small intestinal cells is reduced.]]>
<![CDATA[3D printing applications in bone fabrication: a review ]]>
<![CDATA[Evi J]]>;
<![CDATA[Siska Oktaviyani]]>;
<![CDATA[Mahjur Mahjur]]>;
<![CDATA[Fitri Afriani]]>
<![CDATA[ Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sultan Ageng Tirtayasa ]]>
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DOI: 10.30870/gravity.v7i1.9541
<![CDATA[Bone scaffolding is an alternative solution to bone therapy, which is currently being developed in tissue engineering. This effort aims to produce a bone scaffold with a shape and specification according to bone therapy's needs. 3D printing is a scaffold fabrication method with promising prospects because it can produce scaffolding with physical characteristics as needed, both pore and physical. The method used in this article is a formal review to review various national and international literature using articles from 2000 to 2020 with the keywords "scaffold," "3D-printing", "bone," and "natural sources." The results of this article present various aspects regarding the use of 3D printing for scaffolding. Some aspects that are considered are how 3D printing works, the type of material used, and the scaffold's characteristics. It aims to get a clearer picture of the use of 3D printing, both its prospects/potential, application challenges, and future developments.]]>
<![CDATA[PROFIL JENIS REPRESENTASI SISWA UNTUK MEMECAHKAN PERMASALAHAN DALAM PEMBELAJARAN FISIKA ]]>
<![CDATA[Richard Semuel Waremra]]>;
<![CDATA[Merta Simbolon]]>;
<![CDATA[Syamsul Bahri]]>;
<![CDATA[Oswaldus Dadi]]>
<![CDATA[ Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 1 (2021) ]]>
Publisher : <![CDATA[Universitas Sultan Ageng Tirtayasa ]]>
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DOI: 10.30870/gravity.v7i1.9567
<![CDATA[This study aimed to determine the profile of the type of representation of students to solve problems in learning physics. This type of research is descriptive quantitative. The sample used in this study was 170 high school and vocational high school students in the Merauke district, and the sampling technique used was purposive sampling. The instrument used in this study was a problem-solving ability test instrument using a multimode representation by the Rosengrant stage and a questionnaire instrument for student responses to various types of representation in physics. The results showed that students could only use a single representation in the form of text, image, and mathematical representations. There are no students who can use the representation of line diagrams, bar charts, and free-body diagrams. The students' questionnaire responses showed that students used different representations in understanding the concept, and the type of representation most used was text representation.]]>
