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Scientiae Educatia: Jurnal Pendidikan Sains

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Published by Universitas Islam Negeri Siber Syekh Nurjati Cirebon

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Core Subject : Education,

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Articles 10 Documents

Search results for , issue "Vol 7, No 1 (2018): June (2018)" : 10 Documents clear

Determination Of Acoustic Properties Of Rice Bran Composites A Material Handler Noise Rafika Andari
Scientiae Educatia: Jurnal Pendidikan Sains Vol 7, No 1 (2018): June (2018)
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

The examination of the acoustic characteristic of rice bran has been performed. The materials are the alternative materials of the noise controllerfrom the use of synthetic fiber materials like glasswool. The examination is completed by using tube impedance method. The result of the examination reveals that the natural fiber materials that have been mixed with glue have a good value of sound absorption at frequency 400-1200 Hz whereas at frequency 200 Hz, its value does not change significantly. The high value of the sound absorption is owned by materials with the bigger porous. Beside the coefficient of the absorbtion, the examination of value of acoustic impendence is also performed. The result shows that the similar composition between natural fiber and glue has a bigger value of impendence compared to the lower composition of glue. It is caused by the fulfillment of the bigger amount of the porous by glue.

Genetic Variation of Golden Silk-Producing Insect Cricula trifenestrata Helf. (Lepidoptera: Saturniidae) Using ISSR (Inter Simple Sequence Repeats) Molecular Marker Agnes Herlina Dwi Hadiyanti
Scientiae Educatia: Jurnal Pendidikan Sains Vol 7, No 1 (2018): June (2018)
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

The aims of this research were to conduct a study on genetic variation C. trifenestrata collected from several sampling locations using ISSR (Inter-Simple Sequence Repeat) molecular markers. The applied methods of the research were to collect samples (C. trifenestrata), isolation DNA genome, and analysis of genetic variation using the ISSR-PCR method. Based on genetic variation analysis using 4 primers (ISSR 1, ISSR 2, ISSR 6, dan ISSR 7), it is known that the level of genetic variation and polymorphism of C. trifenestrata is high with a percentage of 98.9%. The formed dendogram showed that the 29 studied samples of C. trifenestrata separate into two major groups at the similarity level of (0,60) 60%.

Response of Pineapple Callus (Ananas comosus Merr.) through In-Vitro Colchicines Treatment Nurul Istiqomah; Muh. Shofi
Scientiae Educatia: Jurnal Pendidikan Sains Vol 7, No 1 (2018): June (2018)
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Pineapple Plant (Ananas comosus (L.) Merr) is a fruit plant that has a high economic value. Increased variety of pineapple preparations lead to increased demand for pineapple fruit. Polyploidation is one way to increase the varieties using colchicine. This study aims to know the pineapple explants of callus response after being treated by colchicine using in vitro method. This research used Group Randomized Design (GRD) which variations concentration of Colchicine 0%, 0.01%, 0.05%, and 0.1%. Parameters were observed to response and thickness of callus of pineapple explants. Data were analyzed using F test and DMRT test in which significance level of 5% with SPSS 17 program. The results showed that pineapple plant explant able to respond colchicine concentration marked with thicker callus. The best colchicine treatment to induce pineapple explants callus was concentration 0.1% of colchicine.

The Effectiveness of Worksheet Based Learning of Rotational Dynamics on Students’ Critical Thinking Skills Viewed from IQ Score Herni Yuniarti Suhendi; Diah Mulhayatiah; Rizki Zakwandi
Scientiae Educatia: Jurnal Pendidikan Sains Vol 7, No 1 (2018): June (2018)
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

The aim of this study is to find out and analyze the effect of a worksheet based learning of rotational dynamics on students’ critical thinking skills viewed from IQ score and the correlation between critical thinking skills and the students’ IQ score. This research has been conducted in even semester of the academic year of 2017/2018, in university in Bandung area. All students in a university in Bandung City are the population for this study with the target population are all students in the first year in the university year of 2017/2018. The sample in this study is the first semester of Physics Education students as an experimental group, selected using purposive sampling technique, with data collecting tool in the form of written test of critical thinking skill and IQ. The research design used is one shot case design. A hypothesis test is done by using correlation and regression. The whole test of this data analysis used SPSS program. The results of this study indicate that the learning-based student's worksheet on the concept of Rotational Dynamics significantly influences students' critical thinking skills. It can be seen from the score of n-gain which is 0.5. Based on the calculation on correlation obtained value of 0.185 <0.5, it means that IQ scores correlated weakly to the students’ critical thinking score, while the regression value of 0.303> 0.05, in other words, the students’ IQ score does not affect the students’ critical thinking skills. So it can be concluded that there is no correlation between IQ and critical thinking skills which seen from the results of correlation and regression analysis.

The Benefit of Purple Aruk Rice (Siangu) in Lowering Body Mass Index (BMI) and Body Fat Percentage Rini Arianti; Oktarina Oktarina
Scientiae Educatia: Jurnal Pendidikan Sains Vol 7, No 1 (2018): June (2018)
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Aruk rice is an iconic rice from Province of Bangka Belitung which is made from cassava while purple aruk rice (PAR)e is made from sweet potato (Ipomea batatas). Ipomea batatas is a high nutritional food that possesses several medicinal value including anti-cancer, antidiabetic, and anti-inflammatory activities. This research aimed to assest the organoleptic features of PAR and analyze the effect of PAR consumption in lowering the BMI and bofódy fat percentage. The design of this research was randomized crossover design with quasi experimental research within subjects single-factor two-level design. This experiment consist of three phases, phase 1 (plain rice consumption), wash out phase, and phase 3 (PAR consumption). The only different between two phases was the source of the carbohydrate. The data of decreasing BMI and body fat percentage betweern plain rice diet and purple aruk rice was analyzed by using paired t test. Organoleptic assessment showed that the aroma of PAR is dislikeable but the natural purple colour is likeable. The decreasing of BMI and body fat percentage was found higher in phase 2 (2,05±0,10) than phase 1 (0,4±0,14), p=0,002. The decreasing of body fat percentage was also found higher in phase 2 or purple aruk rice diet (2,55±0,25) compared to phase 1 plain rice diet (0,5±0,20), p=0,003. Consumption of aruk purple rice lower BMI and body fat percentage more effective than consumption of plain rice.

The Diversity of Hibiscus rosa-sinensis based on Morphological Approach Agus Slamet
Scientiae Educatia: Jurnal Pendidikan Sains Vol 7, No 1 (2018): June (2018)
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

The aim of this research was to know the morphological diversity of Hibiscus rosa-sinensis through visual observation. The character of the qualitative and quantitative morphology of Hibiscus was analyzed descriptively. The result showed that there are 15 types of Hibiscus have morphological differences. There are two kinds of leaf shape that is ovatus and deltoideus. While The leaf base is obtusus, rotundatus and truncatus. The leaf apex includes acute and acuminate. All cultivars have a similar leaf margin that is serrate. The leaf colours are variable ranging from green, young green, dark green and variegate (combination between green and white). The flowers have 6 main color variations i.e beige, yellow, red, orange, pink and white. The corolla forms a single petal or a double petal, with two types of corolla uniquely buds and breech. It can be concluded that the cultivar of Hibiscus rosa-sinensis is variable in leaves and flowers.

Correlation Analysis between External Factors and Students’ Physics Learning Achievement Karyadi Karyadi; Iriwi L.S Sinon; Irfan Yusuf; Sri Wahyu Widyaningsih
Scientiae Educatia: Jurnal Pendidikan Sains Vol 7, No 1 (2018): June (2018)
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Research was conducted to determine whether there is 1) the relationship between the state of the family of learning achievement, 2) the relationship between the state schools of learning achievement, 3) the relationship between communities of learning achievement, and 4) the relationship between the state of the family, school and community environment against learning achievement. This research is associative quantitative correlational analysis techniques. The results showed: 1) There is a positive relationship between the state of the family of learning achievement, the result of the calculation shows r table> count r ie 0.51 > 0.38, 2) There is a positive relationship between the state schools of learning achievement, the result of the calculation shows r count> r table is 0.39 > 0.38, 3) There is a positive relationship between communities of learning achievement, it is shown from the results of calculations, the count r> r table is 0.51 > 0.38, and 4) There is a positive relationship between the state of the family, school and community environment on achievement study, it was shown from the calculation, the concordance coefficient 0,95 and the value of significance (p) of 0,00 <0.05.

Analysis of Math Teacher Candidates’ Misconception on the Dynamic Electricity Concept Dede Trie Kurniawan; Sri Maryanti
Scientiae Educatia: Jurnal Pendidikan Sains Vol 7, No 1 (2018): June (2018)
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

This study was intended to reveal the profile of students’ misconception of the concept of dynamic electricity in one private university in Cirebon city. In the study of physics, the misconception will hamper the achievement of physics learning goals. Misconceptions will greatly hinder the process of acceptance and assimilation of knowledge in students, so that they will hinder the success to learn more. It is necessary to conduct research on the analysis of misconception of mathematics teacher candidates on the concept of dynamic electricity. Misconception is defined as a student conception that is incompatible with the simplified conception of physicists. To identify misconceptions experienced by students, multiple-choice diagnostic tests equipped with a Certainty Response Index (CRI) can be conducted. The data obtained is then completed with interview data. This research is a descriptive research which is a research to give a description about phenomenon, or facts under study by describing the value of the variable without comparing. The study found that 81% of students’ have a misconception in the sub-chapter of electric current, and 50% in the concept of electric potential difference sub-chapter.

The Implementation of Quantum Teaching (QT) and Think Talk Write (TTW) through Lesson Study to Improve Students’ Learning Motivation M.Eval Setiawan; Sri Endah Indriwati
Scientiae Educatia: Jurnal Pendidikan Sains Vol 7, No 1 (2018): June (2018)
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

The research was intended to improve students’ learning motivation at study and learning course for fifth semester of Biology Education. Classroom Action Research has been conducted in two cycles with four phases from each cycle. Each cycle has been done based on lesson study consisting of plan, do, and see. The data were collected using a questionnaire of students’ motivation and motivation questionnaire of the observer which were measured through aspects of attention, relevance, confidance, and statisfaction. Then data are analyzed in quantitative descriptive. The results showed that the feasibility of learning syntax on each cycle has a constant value of 100%. The average feasibility of lesson study in cycle I and II are 98.98% and 100%. The result of the average adherence to learning syntax in cycle I and II is 100%. Based on the result of the questionnaire filled by the observer shows an increase in motivation to learn between cycle I and II by 12.6%, while the average results of the students’ motivation questionnaire showed an increase of motivation to learn by 6%. The application of learning model using Quantum Learning and Think Talk Write can boost the students’ motivation to learn.

Front & Back Matter Volume 7 (2): June 2018 Azmi Azhari
Scientiae Educatia: Jurnal Pendidikan Sains Vol 7, No 1 (2018): June (2018)
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

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