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All Journal Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Jurnal Ilmu Dasar JURNAL PIJAR Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pijar MIPA
Dwi Soelistya Dyah Jekti
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Materials Science & Nanotechnology Mathematics Physics

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Journal : Jurnal Penelitian Pendidikan IPA (JPPIPA)

 1 
ANALISIS KECENDERUNGAN PENELITIAN TESIS MAHASISWA PADA PROGRAM STUDI MAGISTER PENDIDIKAN IPA UNIVERSITAS MATARAM Lalu Zulkifli; Dwi Soelistya Dyah Jekti; Agus Ramdani
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.v1i1.2

Abstract

This study aims to determine the distribution and trends of student thesis research on science education master study program University of Mataram, in terms of the type of research, the focus of study and research subjects. Data obtained through documentation techniques. Data were analyzed by descriptive qualitative tehniques and continued with FGD. The results showed that 73% of the student's thesis research themes included in the education and 27% belong to the natural science (Biology, Physics, and Chemistry). Education research was dominated by learning methods (50%), media applications and media development (17%), respectively, followed by the development of learning tools (13%) and the competence of teachers (3%). Thesis research subjects was dominated at the level of high school (70%), followed by junior high (25%), S1 (2.5%), and teachers (2.5%). Analysis based on the year thesis from 2009 to 2014 provided information that there were increasing trends on topics related to the development of media and the development of learning tools. Focus Group Discussion recommended that the topics for thesis research in the future which need to be improved are the topic of media development, development of learning tools and topics related aspects of critical thinking.Keywords: thesis research, trends, subjects, education
PENGARUH EKSTRAK ETANOL DAUN JAMBU AIR (SYZYGIUM AQUEUM) TERHADAP BAKTERI ISOLAT KLINIS Titi Hariyati; Dwi Soelistya Dyah Jekti; Yayuk Andayani
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.v1i2.16

Abstract

Syzygium aqueum plant of the family Myrtaceae is native of Malaysia and Indonesia and is known as the water rose. The active compound is useful as an antibacterial. This study aimed to determine the effects of ethanol extracts of guava leaves (S. aqueum) as an antimicrobial against clinical isolates bacteria in vitro. The design used in experiment was a Completely Randomized Design (CRD). Data were analyzed using the Kruskal-Wallis test. Results of statistical analysis using SPSS 20 for windows indicated that the ethanol extract of guava leaves has a significant (P<0,05) effect in inhibiting the growth of clinical isolates bacteria. MIC (Minimum Inhibition Concentration) of ethanol extracts for each bacterium can not be determined because the guava leaf extract was very dark. The MBC (Minimum Bacterisidal Concentration) of ethanol extract of guava leaf  for both S. aureus and S. dysenteriae was 20%.  The MBC of the extract for E. coli, S. thypi, V. cholerae was 25%, where as for B. cereus was at concentration of 50%. It can be concluded that guava leaf has highly potential as a source of antimicrobial agent.Keywords:Antibacteria, Guava Leaf, Clinical Isolates Bacteria, Ethanol Extract
PENGEMBANGAN PERANGKAT PEMBELAJARAN BERBASIS PENDEKATAN SAINTIFIK MODEL GUIDED DISCOVERY DAN EFEKTIVITASNYA TERHADAP PENGUASAAN KONSEP BIOLOGI SISWA SMA NEGERI 1 BAYAN Raden Sumiadi; Dwi Soelistya Dyah Jekti; Jamaluddin -
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.v2i2.43

Abstract

The purposes of this research are 1) developing learning device based on scientific approach with model of guided discovery 2) knowing elegibility peripheral of study base on scientific approach model of guided discovery 3) Knowing effectiveness peripheral of study to ability domination biological concept. Development peripheral of study use model 4D from Tiagrajan S. Semmel & modified Semmel become three phase, that is phase of define, design, and development. Result of development peripheral study is hereinafter analysed to use formula of presentase adapted for mean the tables criterion result of validasi. To know effectiveness peripheral of study to domination biological concept, peripheral of study in aplicate limited group in SMAN 1 Bayan and analysed to use formula of presentase complete individual. Result of research show, peripheral of study base on scientific approach model of guided discovery categorized good (valid) and very good (very valid) competent so that used in course study of biology in SMAN 1 Bayan, and peripheral study can streamline ability of domination biological concept student.Keyword: Learning device, Scientific approach, Guided discovery,   Mastery of biological concept
BAKTERI ENDOFIT KULIT BATANG TERAP (ARTOCARPUS ELASTICUS) DAN AKTIFITASNYA SEBAGAI ANTIBAKTERI Guplin -; Dwi Soelistya Dyah Jekti; Lalu Zulkifli
Jurnal Penelitian Pendidikan IPA Vol. 3 No. 2 (2017): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v3i2.106

Abstract

This study aims to identify the types of endophytic bacteria on the bark of terap (Artocarpus elasticus) capable of inhibiting the growth of clinical isolate bacteria of Staphylococcus aureus, Escherichia coli, Salmonella typhi, and Pseudomonas aeruginosa. Stages of this study were (1) isolating the endophytic bacteria from the bark of terap plants (2) antibacterial test (inhibition test) against clinical isolate bacteria, (3) biochemical test upon endophytic isolate bacteria showing strong  inhibition effect, (4) moleculer identifcation upon endophytic bacteria isolate showing strong  inhibition effect. From this study, it was obtained 34 barks of terap isolates, and 12 isolates have inhibitory effect on S. aureus. Based on 16S rRNA   molecular identification, the isolate of endophytic bacteria of the barks were identified as Bacillus cereus, Bacillus subtilis and Bacillus amyloliquefaciens. Those  endophytic bacteria of Terap plants  are potentially  to be  developed as a the producer of antibacterial compounds.Keywords: Terap bark, Endophytic bacteria, Identification, Antibacteria
Co-Authors A. Wahab Jufri A.A. Ketut Agung Cahyawan W Agus Abhi Purwoko Agus Ramdani Dewa Ayu Citra Rasmi Eny Yulianti Guplin - Hari Suryawati I Gst Ayu Suartini Gayatri Jamaluddin - Jamaluddin Jamaluddin Lalu Zulkifli Mochamad Maswan Raden Sumiadi Raden Sumiadi, Raden Raskun . Sahratullah Sahratullah Sumarjan . Titi Hariyati W Kastoro Yayuk Andayani Zainul Muttaqin