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Susilawati -
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Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics Social Sciences Other

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ADSORPSI ZAT WARNA BIRU METILENA OLEH LEMPUNG BENTONIT AKTIF Susilawati -
Jurnal Riset Kimia Vol. 7 No. 2 (2014): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v7i2.182

Abstract

 ABSTRACTStudy on bentonite adsorbent properties such as benthonite optimum activation condition, afectof sulfic acid consentration, activation temperature and activation time to decolorization ofmethilne Blue has been conducted. The study was started by activation of bentonite uponmethylene blue. The data was analysis by statistical method : Least Significant Difference (LSDor BNT). It is found that the mass of bentonite significantly effected (P < 0,01) on thedecolorization percentage of methylene blue. The optimum condition of adsorbtion showed thatthe concentration of activating agent (sulfic acid) was 20%, activation temperature at 110o C andactivation time was 30 minutes. On this optimum condition, the bentonite absorbed methyleneblue up to 93.30% .Keywords: Bentonite, Methylene Blue, Activation, Decolorization
Developing Active Reading Textbook For Third Semester Student Of English Study Program Susilawati -; Mu’thia Mubasyira; Reknosari -
Jurnal Ilmiah Wahana Pendidikan Vol 5 No 2 (2019): JURNAL ILMIAH WAHANA PENDIDIKAN
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (303.877 KB)

Abstract

This research is aimed to design the teaching material: Active Reading text book. The researchers applied the Pebble Pond Model to design the book. The model consists of six different phases namely, problem, progression, analysis, strategy, design and production. Merril (2002). The result of the research is expected to help the lecturers to teach active reading course and deliver the knowledge through the reading material to the students. After identifying students’ problem in comprehend ESL texts, analyzing the students’ needs, designing the draft, and arranging the materials, the researchers designed the book based on the available syllabus. The Active Reading book is designed to assist the students in learning reading at the third semester. The book consists of the reading material completed by the reading strategies. The various ESL texts will help the students be successful readers.
PERBEDAAN PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE STAD DAN TIPE JIGSAW TERHADAP HASIL BELAJAR FISIKA DITINJAU DARI MOTIVASI BELAJAR SISWA Aris Doyan; Wayan Gunada; Susilawati -; Ida AYu Desy Adriani
Jurnal Penelitian Pendidikan IPA Vol. 1 No. 1 (2015): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i1.1

Abstract

The research is aimed to finding difference of effect the implementation of cooperative learning model STAD and Jigsaw type on the result of physic learning, difference of effect the students whose achievement motivation on result of physic learning and interaction of effect between the learning model implementation and the achievement motivation on the result of physic learning. This type of research is quasi experimental with Factorial Design of 2x2. The population in this research is all Class VIII SMPN 12 Mataram with used technique cluster random sampling. There are two samples that are class VIII C as an experiment class I and class VIII D as experiment class II. The experiment class I used the treatment STAD cooperative learning model and the experiment class II used the treatment Jigsaw cooperative learning. Analysis technique using analysis of variance (ANOVA) two way different cells. Based on by calculation hypothesis testing obtained that, FA hint (6,37) > Ftable (4,02) then Ho1 rejected, FB hint (12,37) > Ftable (4,02) then Ho2 rejected,, FAB hint (0,96) < Ftable (4,02) then Ho3accepted. With significant level 0,05 obtained that there is a difference of effect the implementation of cooperative learning model STAD and Jigsaw type on the result of physic learning, there is a difference of effect the students whose achievement is high and low motivation on the result of physic learning and there is no interaction between of cooperative learning model STAD and Jigsaw type with achievement motivation towards of physics learning.
SIFAT PENYERAPAN BUNYI PADA KOMPOSIT SERAT BATANG PISANG (SBP) – POLYESTER Khusnul Khotimah; Susilawati -; Harry Soeprianto
Jurnal Penelitian Pendidikan IPA Vol. 1 No. 1 (2015): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i1.9

Abstract

This research conducted to find the physical properties of the absorption of sound from banana stem fiber (Serat Batang Pisang/SBP) with polyesters’ matrix. The sound absorbent material made with a variety of different volume fraction composition. The comparison between the SBP and the volume fraction of the polyester is made of 30%: 70%, 40%: 60% and 50%: 50%. The method of research was done in three stages: making banana stem fiber, manufacturing composite and testing of composite SBP. Composite testing includes physical properties (sound absorption). Preparation of the samples started by taking a banana stem, decomposition banana stem fiber, alkali treatment with NaOH 4%, then mixing the SBP with the matrix  polyester. Manufactured the composites by press the materials on the molding for 12 hours, then tested to find physical properties. Sound absorption test performed using a signal generator and a sound level meter with the principle of the impedance tube method through acoustic box approach as a reference. The results of the study showed that SBP with polyester composite capable to absorb the sound with sound absorption coefficient α = 0.84 at 50% fiber volume fraction. Thus SBP composites can absorb sound for low and medium frequency, based on the standard ISO 11654:1997 (E) where the minimum of sound absorption coefficient of acoustic materials is α = 0.15. Keywords: Composite, banana stem fiber, sound absorber materials, polyester.
PENGEMBANGAN BAHAN AJAR FISIKA SMA BERBASIS LEARNING CYCLE (LC) 3E PADA MATERI POKOK TEORI KINETIK GAS DAN TERMODINAMIKA Mussani -; Susilawati -; Aos Santosa Hadiwijaya
Jurnal Penelitian Pendidikan IPA Vol. 1 No. 1 (2015): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i1.10

Abstract

This study aims to develop teaching materials based high school physics learning cycle ( LC ) 3E in the subject matter and thermodynamics kinetic theory of gases. The study was conducted using the R & D approach is adapted from Brog and Gall which includes the preliminary study stage, stage of development, and testing phases. At this stage of the analysis of the results of a preliminary study conducted literature studies and field studies so that the resulting formulation needs teaching materials physics. Stage of prototype development was done with the preparation of teaching materials and support tools, expert validation, evaluation and improvement, limited testing, and evaluation and improvement. Phase of testing was conducted at SMAN 5 Mataram which aims to determine the effectiveness of the products teaching materials in improving learning outcomes physics students and determine the feasibility of the product. Tests carried out using an experimental method pretest - posttest control group design involving two classes as the sample that is class XI Science 2 class with 33 students as experiment with new teaching materials and class XI IPA 5 with 32 students as the control class with the old teaching materials. The effectiveness of teaching materials was analyzed using Anacova test at a significance level of 5 %. Anacova obtained from the analysis of  Fcount = 7.54 > Ftable = 4.00 which indicates that the physics - based teaching materials more effective learning cycle to improve student learning outcomes physics. The response of students to the teaching material products obtained through questionnaires and analyzed descriptively. The results of the analysis suggests that both aspects of the content, language, presentation, and graphical obtain responses with an average assessment in the high category, so that the product is fit for use in the teaching of physics in the subject matter kinetic theory of gases and thermodynamics at the high school level. Keywords: Development of teaching materials, learning cycle, the kinetic theory of gases and thermodynamics
PENGEMBANGAN BUKU AJAR ASTRONOMI BERBASIS SELF REGULATED LEARNING SEBAGAI UPAYA MEMOTIVASI MAHASISWA UNTUK BELAJAR MANDIRI Susilawati -; Harry Soeprianto; Habibi -
Jurnal Penelitian Pendidikan IPA Vol. 1 No. 2 (2015): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i2.25

Abstract

The study aims to produce a textbook Astronomy based self-regulated learning that can motivate students to learn independently. The method used is Research and Development (R & D) by adopting three of the four stages of development models that define 4D (definition), Design (design), and the Development (development). Define phase conducted to determine the characteristics of the products textbook developed through a preliminary study. Selection of the format of the manufacture of textbooks carried out at the stage of design to produce a draft of the Development Phase I. undertaken to produce draft II, III draft, and the final product of the textbook developed. Draft II obtained through the revision of expert validation of three validator recommended. Draft III is the result obtained from a test on a small group of 5 students FKIP Unram as samples taken at random. The end product obtained from the development of field tests on all Unram FKIP students who are taking elective courses astronomical TP 2013/2014 amounted to 12 people. Validation results as well as devices supporting textbook shows the criteria of "very decent" to be used and can motivate students to learn independently.
PENGARUH MODEL PEMBELAJARAN INKUIRI TERBIMBING TERHADAP PENGUASAAN KONSEP SAINS DITINJAU DARI KEMAMPUAN AWAL SISWA Susilawati -; Nyoman Sridana
Jurnal Penelitian Pendidikan IPA Vol. 1 No. 2 (2015): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i2.26

Abstract

This study aims to find out: (1) the differences in science concept mastery of students who take guided inquiry learning model with conventional learning, (2) the differences in science concept mastery of students that prior knowledge high and low prior knowledge. This method of research is an quasi-experimental with factorial 2x2 analysis design. The subject of this study was ten class of 8th grade student in SMP 10 Mataram 2014/2015. Two class was chosen as sample using cluster random sampling technique, one classes as experimental group and one classes of control group. The research instrument is science mastery concept made by teacher. Data were analyzed using ANCOVA to find the effect of learning model and prior knowledge to science concept mastery. Analyses were performed using SPSS version 20 for Windows. Based on the analysis can be concluded that: 1) There are differences in science concept mastery of students who take guided inquiry learning model compared to conventional learning. 2) There is no difference in concept science mastery of students who have high and low prior knowledge of students.
SINTESIS BARIUM M-HEXAFERRITTE (BaFe12-xNixO19) DOPING LOGAM NIKEL DENGAN METODE KOPRESIPITASI Munib -; Susilawati -; Lalu Rudyat Telly Savalas
Jurnal Penelitian Pendidikan IPA Vol. 2 No. 1 (2016): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i1.28

Abstract

Synthesis of Barium M-Hexaferrite (BaFe12-xNixO19) nickel metal doping have been done with co-precipitation method and its effect on temperature changes and substitution dopants. Basic materials used in the synthesis of BaCO3, FeCl3.6H2O, HCl, NH4OH and nickel metal. The process of synthesis of barium M-heksaferit conducted at the Faculty of Mathematics and Natural Sciences Analytical Laboratories Unram. This study used a variation of calcination temperature of 80, 400, 600 and 800°C for 4 hours with a variety of dopants 0; 0.4; 0.7 and 0.9. Synthesis results show that changes in the concentration of the dopant variables and calcination temperature indicate a tendency to change color to brown-black powder.Abstract: Barium Mhexaferrite, dopant, nickel, co-precipitation.
SINTESIS SERBUK BARIUM HEKSAFERIT YANG DITAMBAH DENGAN LOGAM Mn SEBAGAI MATERIAL ANTI RADAR Khalilurrahman -; Susilawati -; Kosim -
Jurnal Penelitian Pendidikan IPA Vol. 2 No. 1 (2016): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i1.36

Abstract

Barium Heksaferit (BaFe12-xMnxO19) powder synthesis was added with Mn metal using coprecipitation method. The purpose of adding these metals to see the effect of adding Mn metal and calcination temperature of the powder color change Barium Heksaferit. The value of x in the addition of Mn metal in Barium Heksaferit is x = 0 ; 0.2 ; 0.4 ; 0.6 and calcined for 4 hours at a temperature of 400 , 600 and 800 oC. The addition of Mn metal and calcination temperature rise resulting color more brown powderKeyword: Sintesis, Barium M-heksaferit‚ Mangan (Mn)‚ kopresipitasi
PENGARUH PENDEKATAN VAK (VISUALIZATION, AUDITORY, KINESTETIC) TERHADAP HASIL BELAJAR FISIKA SISWA SMPN 10 MATARAM TAHUN AJARAN 2013/2014 Siswadi -; Susilawati -; Hikmawati -
Jurnal Penelitian Pendidikan IPA Vol. 2 No. 2 (2016): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i2.44

Abstract

This research aimed to examine the effect of VAK approach (Visualization, Auditory, Kinestetic) towards the result of learning physics of students at SMPN 10 Mataram in academic year 2013/2014. The kind of research used was experimental design with design of research was randomized posttest only control design. The sampling technique used was cluster random sampling. Population in this research was all the students from the eight grade at SMPN 10 Mataram, while the sample was 25 students of class VIII A as the experimental group and 27 students of class VIII B as the control group. The data obtained was analyzed by using t-test of two-tailed. t-count was 4.78 and t-table was 2.00 with significance level 0.05. Hence, t-table is smaller than t-count or t-count is bigger than t-table. It means that Null Hypothesis was rejected and Alternate Hypothesis was accepted. It means that the application of VAK Approach (Visualization, Auditory, Kinestetic) affects the results of learning physics of students.Keyword: VAK Approach
Co-Authors Ahmad Harjono Aos Santosa Hadiwijaya Aris Doyan Habibi - Harry Soeprianto Hikmawati . Holyness Nurdin Singadimedja Ida Ayu Desy Adriani Khalilurrahman - Kosim - LALU RUDYAT TELLY SAVALAS Munib - Mussani - Mu’thia Mubasyira Nyoman Sridana Reknosari - Siswadi - Wayan Gunada