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Analisis senyawa volatil dari ekstrak tanaman yang berpotensi sebagai atraktan parasitoid telur wereng batang coklat, Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae) Wonorahardjo, Surjani; Nurindah, Nurindah; Sunarto, Dwi Adi; Sujak, Sujak; Zakia, Neena
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.505 KB) | DOI: 10.5994/jei.12.1.48

Abstract

Plants produce volatiles as communication cues intra- or inter- species. Infested plants by herbivores will produce volatiles as indirect defense mechanism that attracts natural enemies of herbivores. Analysis of volatiles compounds produced by rice plant as result of infested brown plant hopper (BPH), Nilaparvata lugens Stí¢l, was done to identify compounds in the volatiles that potentially can be used as attractant for egg parasitoids of BPH, Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae). This research was an early stage to develop formulation of parasitoid attractant. The research activities include volatiles extraction of infested rice stem by BPH eggs using acetone, n-hexane as the extraction solvents; analyses of volatile compounds with GC-MS; and bioassay of parasitoid orientation behavior to the volatiles using olfactometer methods. Extraction methods applied were maceration and continuous extraction followed by concentration. Bioassay on the parasitoid orientation behavior was done by using Y-tube olfactometer and every lot of bioassay using 30 parasitoid females with 3 replicates. The results showed that the volatile compounds of extract of infested rice stem by BPH eggs comprise of 16 components. The highest proportion of the components extracted with acetone is 2-Pentanone, 4-hydroxy-4-methyl (19,9%), while those with n-hexane is Hexanedioic acid, dioctyl ester (65%). A. nilaparvatae showed positive response to the volatiles extracted from infested rice plant by N. lugens eggs. Therefore, the volatiles can be used as an attractant for the egg A. nilaparvatae to support rice pest management.
The Effectiveness of Contextual-based InstructionalMaterials of Elements of Group 15 For Inorganic Chemistry Agtri Wulandari; I Wayan Dasna; Surjani Wonorahardjo
JPP (Jurnal Pendidikan dan Pembelajaran) Vol. 26 No. 1 (2019)
Publisher : Lembaga Pengembangan Pendidikan dan Pembelajaran, Universitas Negeri Malang in Collaboration with Asosiasi Pendidik dan Pengembang Pendidikan Indonesia (APPI)

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Abstract

The purpose of research is determine the effectiveness of teaching materials based contextual elements of group 15 for the course of inorganic chemistry. The research design is one group pretest-posttet only. Subjects were students of Chemistry Education University of Palangka Raya as many as 47 people. Based on the research results, is obtained percentage of graduated postes amounted to 93.6%, mean of  n-gain score is 0,54 (moderate), and the probability value (p) is 0,000, showed no significant difference between the pretest and posttest. Therefore, teaching materials element of group 15 based on contextual for inorganic chemistry course effective to improve student’s learning result.
The Effect of Learning Management System (LMS) Assistance in Think-Pair-Share Strategy on Students’ Learning Outcomes and Motivation Ahmad Suhaili; Endang Budiasih; Surjani Wonorahardjo
JPP (Jurnal Pendidikan dan Pembelajaran) Vol. 27 No. 1 (2020)
Publisher : Lembaga Pengembangan Pendidikan dan Pembelajaran, Universitas Negeri Malang in Collaboration with Asosiasi Pendidik dan Pengembang Pendidikan Indonesia (APPI)

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Abstract

The purpose of this study was to determine the effect of Learning Management System (LMS) assistance in Think-Pair-Share (TPS) strategy and the effect of Think-Pair-Share (TPS) strategy on students’ learning outcomes and motivation. Fourty students of two science classes were involved in this study. The treatment instruments used in this study were acid-base teaching materials, syllabus, student worksheets (LKPD), lesson plans (RPP), and Learning Management System (LMS). The measurement instrument employed a test question sheet and a student motivation questionnaire. The results showed differences in learning outcomes between students who are taught with the assistance of LMS in TPS strategy compared to students who are taught using TPS only are observed. There are differences in motivation among participants. Students who are taught with the assistance of LMS in TPS strategy compared to students who are taught with TPS strategy only.
The Innovation of MOOC Based E-Marketing to Improve Entrepreneurship Administration Management for Vocational Education Students in Industrial Revolution 4.0 Era Andika Bagus Nur Rahma Putra; Amat Mukhadis; Tuwoso; Nurul Ulfatin; Surjani Wonorahardjo; Habiddin; Made Duananda Kartika Degeng; Tee Tze Kiong
JPP (Jurnal Pendidikan dan Pembelajaran) Vol. 27 No. 1 (2020)
Publisher : Lembaga Pengembangan Pendidikan dan Pembelajaran, Universitas Negeri Malang in Collaboration with Asosiasi Pendidik dan Pengembang Pendidikan Indonesia (APPI)

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Abstract

This research has aims to: (1) develop MOOCs based e marketing; (2) testing theattractiveness of MOOCs based e-marketing; and (3) knowing the level of effectiveness of MOOCs based e-marketing. The method in this study is research and development. The resultsof this study include: (1) the results of the e-marketing expert test and website marketing design expert test have a percentage: 81.50% (ease of accessing consumers), 84.10% (presentation of goods/services sold), 79.10 % variation of website content), 86.00% (compatibility with websitegoals), 83.70% (harmony of each page of views), 83.70% (complete description of products sold),83.70% (attractiveness of e-website marketing), 85.00% (ease of order process for consumers), 81.50% (responsible admin e-marketing), 81.50% (trouble shooting website problems); (2) MOOCs based e-marketing proved effective in improving the management of student entrepreneurship administration in the vocational sector in the Industrial Revolution 4.0 era, indicated by the results of the final ability test which showed significant differences between control classes without using e-marketing based MOOCs and experimental classes using MOOCs based e-marketing; and (3) E-marketing based MOOCs needs to be further developed because it can improve the management of entrepreneurial administration in vocational students in the Industrial Revolution era 4.0.
Application of Model Problem Based Learning Assisted Blended Learning on Cognitive Knowledge of University Students in Analytical Chemistry Instrument Varisky Abraham Dumanaw; Surjani Wonorahardjo; Hayuni Retno Widarti
JPP (Jurnal Pendidikan dan Pembelajaran) Vol. 27 No. 2 (2020)
Publisher : Lembaga Pengembangan Pendidikan dan Pembelajaran, Universitas Negeri Malang in Collaboration with Asosiasi Pendidik dan Pengembang Pendidikan Indonesia (APPI)

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Abstract

This study aims to determine differences in cognitive knowledge of students who are taught with a problem based learning aided by blended learning on the material of the uv-vis spectroscopy. This study uses a cognitive knowledge test instrument that has content validation of 87,92% with very good criteria and a Cronbach Alpha reliability coefficient of 0.653 in the high category. The research was conducted at the Universitas Negeri Manado in two classes. The experimental class was taught by the problem based learning model assisted by blended learning and the control class that was taught with a problem based learning model. The results showed a statistically significant difference in students' cognitive knowledge in both study classes (α = 0.050).
Partisipasi Online dalam Pembelajaran Community of Inquiry (COI) pada Materi Distilasi Pratiwi, Effa Rachma; Wonorahardjo, Surjani; Arief, Munzil
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan Vol. 1, No. 7
Publisher : citeus

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Abstract

Participation of chemistry student State University of Malang in the course of chemical separation is not maximized. It is necessary to apply one student centered learning strategy, that inquiry. Inquiry who form a learners group called the Community of Inquiry (CoI). Face-to-face meeting is a little on the distillation that can not maintain CoI in the classroom so that online learning is applied. The purpose of this study was to determine the online participation through CoI in the distillation. The method used is the pre-experimental with descriptive data analysis. Descriptive analysis states student participation in online learning in the distillation was high.
Pengaruh Pembelajaran Berbasis Web terhadap Hasil Belajar Mahasiswa Jurusan Kimia pada Materi Kimia Inti dengan Kemampuan Self Regulated Learning Berbeda Rhamandica, Chintia; Wonorahardjo, Surjani; Arief, Munzil
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan Vol. 1, No. 10
Publisher : citeus

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Abstract

This research aimed to identify the influence of web-based learning on the learning outcomes of the students which was seen from different self regulated learning and interaction between students with, contens, students, and teacher on web based learning with different self regulated learning ability. This research employed quasi-experimental design with posttest only control group design. Subjects were the students in the second semester of Chemistry Department in Malang. The treatment instruments used in this research were syllabus, RPP, teaching materials, LKM, and online media. The other instruments of this research was measurement instrument which consists of self regulated learning questionnaire and learning outcomes test consist of 23 multiple choices. Data analysis was done with t-test and post hoc anova. The results of the study showed that (1) there is no significant difference in the cognitive learning outcomes of the students that are taught to use either blog or moodle as the web based learning media on different self regulated learning, and (2) on the blog class learning media more contribute to the learning process rather than students’ SRL ability, while on the moodle class students’ SRL ability more contribute to the process of learning rather than learning media.
Efektivitas Model Pembelajaran Problem Solving menggunakan LKS Berbantuan Diagram Ve dalam Meningkatkan Kemampuan Berpikir Kritis Siswa pada Materi Termokimia Andini, Ririn; Subandi, Subandi; Wonorahardjo, Surjani
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan Vol. 3, No. 9
Publisher : citeus

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Abstract

The purpose of this research is to know the difference of critical thinking ability between students in learning with problem solving model using LKS assisted diagram Ve with students in learning by problem solving learning using LKS without diagram Ve. This research is a quasi-experimental research with pretest-postest nonequivalent control group design. The subjects were class XI MIPA 6E3 as experimental class 1 and XI MIPA 6D3 as experimental class 2. Students in experiment 1 class were taught with problem solving using assisted LKS diagram Ve while students in experimental class 2 were solved with problem solving using LKS without Ve diagram. Instruments for measuring students' critical thinking skills are essays of validation. The results showed that the students using the assisted LKS diagram Ve in the thermochemical learning resulted in a higher N-Gain score (0.74 = high category) than the class that did not use the Ve diagram (0.69 = medium category).
Model Problem Based Learning Berbantuan Blended Learning terhadap Kesadaran Metakognitif Mahasiswa pada Materi Spektroskopi Atom Asmi, Silvi Octaviani; Wonorahardjo, Surjani; Widarti, Hayuni Retno
Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan Vol. 4, No. 6
Publisher : citeus

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Abstract

This study aims to determine differences in metacognitive awareness of students who are taught with a problem based learning model based blended learning on the material of the atomic spectroscopy. This study used a metacognitive awareness questionnaire instrument that has content validation of 95.28% with very good criteria and a Cronbach Alpha reliability coefficient of 0.884 in the high category. The research was conducted at the Universitas Negeri Malang in two classes. The experimental class which was taught by the problem based learning model assisted by blended learning and the control class that was taught with a problem based learning model. The results showed a statistically significant difference in students' cognitive knowledge and metacognitive awareness in both study classes (α = 0.050).