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PENDIPA Journal of Science Education

pendipa
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Published by Universitas Bengkulu

ISSN : 20869363 EISSN : 26229307 DOI : -

Core Subject : Science, Education,

Chemistry Education Mathematics

PENDIPA Journal of Science Education is a peer-reviewed, open-access journal covered all aspect of science and science education. PENDIPA journal welcomes the submission of scientific articles related to mathematics, physics, chemistry, biology, and its educational implementation in a school, higher education and other educational institution. We encourage scientist, lecturer, teacher and student to submit their original paper to the journal. PENDIPA journal is published by Graduate School of Science Education - University of Bengkulu, three times a year on February, June and October

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Articles 334 Documents

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Uji Aktivitas Lektin Biji Kebiul terhadap Kecepatan Penggumpalan Sel Darah Merah Manusia dalam Kondisi Patologis dan Implementasinya sebagai Modul Pembelajaran Kimia Yeni Trianah
PendIPA Journal of Science Education Vol 2, No 3 (2018): October
Publisher : University of Bengkulu

ABSTRACT[Lectin activities of kebiul seeds to the red blood cell agglutination speed in pathological condition and its implementation as a chemical learning module]. The purposes of this research were to determine: 1) the relative moleculer mass protein that behaves as a lectin in the seed extract kebiul , 2) the velocity of red blood cell clumping influenced by seed lectin kebiul, 3) know the difference student results on protein taught modules and a without modules taught at the College of Teacher Training and Education Teachers Association of the Republic of Indonesia (STKIP-PGRI) Lubuklinggau. Extraction of seeds Kebiul carried out in the a cold buffer solution with pH 7.4 and plus 60% saturated ammonium sulfat (salting out method), and made in four concentrations, namely : 2%, 4%, 6% and 8%. Then tested the activity of seed lectin kebiul to speed clotting of human red blood cells in pathological conditions. To determine the relative molecular mass protein that behaves as a lectin in the seed extract kebiul SDS PAGE electrophoresis performed 1-D. The experiment were then implemented on the material of protein biochemistry using modules. The results of the research showed that on the concentration of 8% the velocity of the clumping of a human red blood cells hypertension most of the highest, the relative molecular mass which behaves as a lectin protein electrophoresis results of 1-D SDS PAGE obtained by a three protein bands in the range of moleculer weights 80, 128 and 144 kDa. The Results of the implementation of the experimental class showed an average `post test value was 95 and the post test control class 69.41. There are differences in students' learning about protein for students who are taught by module and who are taught without module.Keywords: Lectin; agglutination; blood; 1-D SDS PAGE; learning outcomes.

Inovasi Sistem Stack Microbial Fuel Cell menggunakan Substrat Limbah Rumen Sapi serta Implementasinya sebagai Media Pembelajaran Diya Novarina; Eko Swistoro; M. Lutfi Firdaus; Rosane Medriati
PendIPA Journal of Science Education Vol 2, No 3 (2018): October
Publisher : University of Bengkulu

ABSTRACT[Innovation of microbial fuel cell stack system using cow rumen waste substrate and its implementation as a learning media]. The aims of this study are to: 1) describe the difference of Electric Motion (GGL), 2) describe the difference of electric power per unit area of the anode (Pa) which is produced between the series design MFC type series, parallel, mixed type 1 and mixed type 2, and 3) describe the significant difference of learning outcomes between the PBL learning model using MFC media with PBL learning model by using the electrical kit medium on dynamic electrical concept in SMA Muhammadiyah 4 Bengkulu. The free variable of this research are MFC stack system design (series, parallel, mixed types 1 and 2) and the dependent variable is GGL and electric power per unit of anode surface area. The results are obtained difference GGL and Pa between series design, parallel, mixed types 1 and 2 by comparison are 3: 1: 1,5: 2 whereas Pa ratio is 1: 10: 6: 2 with maximum GGL is obtained in series design of 3,29 V and Pa maximum in parallel circuit 21,76 mW / m2. Implementation of MFC series as a learning media used Problem Based Learning model on physics learning Implementation of MFC circuit with research design using one group pretest-posttest design. The testing of hypothesis with t-test shows tcount 2.739> ttable 2,001 and 95% significant level so it can be concluded there are significant differences in learning outcomes of PBL learning model by using MFC media with PBL learning model by using media Electric Kit on dynamic electrical concept in SMA Muhammadiyah 4 Bengkulu. Keywords: Stack Microbial Fuel Cell (MFC) Sistem; Rumen Cow Liquid Waste; Learning Media.

Analisis Shear Strain dan Kerusakan Bangunan Akibat Gempa Bumi di Kecamatan Gading Cempaka dan Ratu Agung Kota Bengkulu Kurnia Lestari; Muchammad Farid; Afrizal Mayub
PendIPA Journal of Science Education Vol 2, No 3 (2018): October
Publisher : University of Bengkulu

ABSTRACT [The Analysis of Shear Strain and Building Damage due to Earthquake at Gading Cempaka and Ratu Agung District in Bengkulu City]. The aims of this research are to: (1) determine and mapping the distribution of shear strain values, (2) correlate between shear strains with building damage Gading Cempaka and Ratu Agung caused by earthwuake at sub district in Bengkulu city. Microtremor data were taken at 108 observation points then analyzed using HVSR method to obtain amplification factor and dominant frequency values..The result showed that shear strain value of Gading Cempaka and Ratu Agung sub district in Bengkulu city are relatively heterogeneous although in the same geological formation type. The earthquake in 2007 is estimated to be 3.38% potential to deform the land surface in the form of fractures and settlements and 96, 62% potentially experience shocks due to waves and vibrations due to earthquake. The earthquake of 2000 estimated that almost the entire area of Gading Cempaka and Ratu Agung has the potential to experience shocks due to waves and vibrations due to earthquake that is equal to 97% while potentially liquefaction (ambles) occurs by 3%. The correlation between shear strain with the damage of buildings due to earthquake shows the relationship is directly proportional to the function y = 15267x + 26.219 with the coefficient of resgression of = 0.671. Keywords: Earthquake; HVSR method; microtremor; shear strain.

Uji Aktivitas Ekstrak Biji Caesalpinia Sp terhadap Jumlah Eritrosit Mus musculus yang Diinfeksi Plasmodium berghei serta Implementasinya dalam Pembelajaran Kimia Nurleli Nurleli; Agus Sundaryono; Aceng Ruyani
PendIPA Journal of Science Education Vol 2, No 3 (2018): October
Publisher : University of Bengkulu

AbstraCT[Activity test of Caesalpinia sp seed extract on erythrocytes amount of Mus musculus infected by Plasmodium berghei and its implementation in chemistry learning]. The aims of this study were to (1) determine the activity of seed extract (Caesalpinia sp) on the number of Erythrocytes of M. Musculus of Swiss Webster Strain infected by P.berghei, (2) Find the active compounds obtained from the isolation of Caesalpinia sp seed extract (3) Find the differences in student learning outcomes about the separation of secondary metabolites using thin layer chromatography (TLC) which is taught in chemistry learning by using LKS. In this study Caesalpinia sp seed extract was purified by thin layer chromatography and column coromatography, and was identified by IR and 1H-NMR spectroscopy. M. musculus infected with P. berghei was given Caesalpinia sp seed extract at a dose of 0.028 g/Kgbb, 0.056 g/Kgbb, and 0.084 g / Kgbb by gavage, while the positive control group was given Kloroquin diphosphate, negative control was given olive oil. Caesalpinia sp seed extract with a dose of 0.056 g/Kgbb inhibited the highest plasmodium, which was 42.89% and even exceeded the malaria drug commonly used chloroquin diphosphate 29.85%. Caesalpinia sp seed extract capable of reducing plasmodium in erythrocytes is also able to increase the number of uninfected erythrocytes. The active compounds obtained from the isolation of Caesalpinia sp seed extract are alkaloids, flavonoids, saponins, and terpenoids. In the implementation of extracurricular group learning is taught by using worksheets. There are significant differences where the average posttest score is 88.67 and the average pretest is 32.1. Keywords: Caesalpinia Sp.; Erythrocyte; Plasmodium berghei; Mus muscullus; Student working sheet.

Cover dan Kata Pengantar Jurnal Pendipa Vol.2 No.3 Edisi Oktober 2018 Jurnal Pendipa
PendIPA Journal of Science Education Vol 2, No 3 (2018): October
Publisher : University of Bengkulu

Cover dan Kata Pengantar Jurnal Pendipa Vol.2 No.3 Edisi Oktober 2018

Studi Pertumbuhan Awal Kuya Batok (Cuoro Ambonensis) di Kolam Kehutanan UNIB serta Implementasinya sebagai Bahan Ajar Zoologi Vertebrata Indah Maryani; Aceng Ruyani; Bhakti Karyadi; Hery Suhartoyo
PendIPA Journal of Science Education Vol 2, No 3 (2018): October
Publisher : University of Bengkulu

ABSTRACT[Study of Kuya Batok (Cuoro Ambonensis) Early Growth’s in UNIB Forestry Pond and its Implementation as Teaching Materials on Vertebrate Zoology]. The goal of this study was to know the growth of C. amboinensis in the ex-situ conservation area of the University of Bengkulu Forestry Pond during the 10 weeks study and 3 weeks continuous research, to know the condition of abiotic factor C. amboinensis in ex-situ conservation area of Forest Ponds of Bengkulu University, and to know the knowledge and understanding of the students about the early growth of C. amboinensis, the conservation concept at the University of Bengkulu Forestry Pond and the change of students conservation attitude by using teaching materials. Implementation of learning adoption of existing teaching material products "Technique Monitoring of Black-turtle Lineage of Coldhamii" (Astuti, 2016). The teaching material is in the form of a book entitled "Monitoring Technique of Turtle Shell (Cauro amboinensis)". The results of this study show that: a) The first study only received 1 C. amboinensis for 10 weeks of observation and growth (weight, length, width, thickness, anterior-posterior arch, b) Abiotic factors in the conservation area supported growth of C. amboinensis and suitable for in situ conservation pond ex situ in UNIB, c) On the second observation release 15 C. amboinensis by using 3 large trapp to conservation pond for 3 weeks and experiencing growth, d) condition of abioic factor become habitat C. amboinensis include: ground temperature 280C, water temperature 300C, relative humidity 80%, soil pH 6, pH 7 water, turbidity 80, e) high knowledge of students about the existence of turtles 22.8% - to 77.2% on conservation 13% to 87%, not in line with the conservation attitude of 34% to 66%.Keywords: Growth; C. amboinensis; abiotic factor; teaching material.

STUDI KEANEKARAGAMAN MAKROBENTOS DI WILAYAH KONSERVASI KURA-KURA UNIVERSITAS BENGKULU SEBAGAI SUMBER BELAJAR IPA Winda Zulistia; Bhakti Karyadi; Agus Susanta
PendIPA Journal of Science Education Vol 1, No 1 (2017): october
Publisher : University of Bengkulu

This study aims to determine the diversity of macrobentos that exist in the turtle conservation pond University of Bengkulu which serve as a source of learning science class VII MTsN 2 Bengkulu City. This research was conducted in February 2017 until May 2017. The sampling of macrobentos using a quadrant transect measuring 1x1 meter made of 6 quadrants. Based on the results of research conducted obtained 1,086 individuals belonging to macrobentos belonging to 3 genus namely, Bellamnya, Faunus, and Pomaceae. The data obtained were calculated based on macrobentos community structure consisting of population density (KP), relative abundance (KR), presence frequency (FK), Diversity Index (H ') and dominance index (C). The macrobentos diversity index found in turtle conservation ponds is below 1.5, with the result it can be said that in both turtle conservation ponds it has low macrobentos diversity. Development of learning refers to the modified Dick & Carey model. The lessons developed include Syllabus, RPP, LKPD, and performance appraisal instruments that are viewed from the students' process skills. The result of the validation of learning development shows that the teaching materials developed are very feasible in the test try to learners. The results showed that the average of students' process skills from the aspect of the highest performance performance was in good criteria. This is indicated by the percentage that reaches 67%. While the criteria include very good reached 33%. While for the result of measurement of process skill of student which counted by classical which counted on each indicator included into good category and very good.

Analisis kadar komponen kimia pelepah sawit varietas dura sebagai bahan baku pulp yang diterapkan pada pembelajaran kimia Sri Astuti; Ridwan Yahya; Agus Sundaryono
PendIPA Journal of Science Education Vol 2, No 1 (2018): February
Publisher : University of Bengkulu

ABSTRAK Penelitian ini bertujuan untuk menentukan kadar komponen kimia yang meliputi zat ekstraktif, lignin, holoselulosa dan ?-selulosa pelepah sawit varietas dura, menjelaskan pengaruh bagian pelepah sawit varietas dura terhadap kadar ekstraktif, lignin, holoselulosa dan ?-selulosa, membandingkan perbedaan kadar komponen kimia antar bagian pangkal, tengah dan ujung dari pelepah sawit varietas dura, mengindentifikasi gugus fungsi yang ada pada sampel (lignin, holoselulosa dan ?-selulosa) dengan menggunakan metode spektroskopi FTIR, membandingkan pengaruh perbedaan hasil belajar sebelum dan sesudah diberi pengembangan konsep makromolekul dengan melihat video yang diaplikasikan pada Lembar Kerja Peserta Didik (LKPD) terhadap cara berfikir kritis siswa Olimpiade Kimia. Zat ekstraktif, holoselulosa, ?- selulosa dan lignin dianalisis dengan menggunakan Tappi Test methode :204, T 203, T:222 serta diidentifikasi dengan spektroskopi FTIR. Hasil penelitian Kadar komponen kimia pada pelepah sawit varietas dura menurut bagiannya dari pangkal, tengah, ujung berturut-turut dengan rerata untuk kadar zat ekstraktif 8,92%, 7,80% , 7,23%. Lignin 24,89 %, 26,87 %, 24,17 %. Holoselulosa 84,11 %, 83,47 %, 82,24% dan ?- selulosa 45,76 %, 45,76 %, 45,54%. Penelitian pendidikan dengan desain one-group pretes-postes. Penelitian pendidikan dilakukan dengan melakukan proses pembelajaran menggunakan Video dan LKPD sesuai dengan keterampilan berpikir kritis. Pada implementasi dalam pembelajaran terdapat perbedaan pada hasil belajar kimia sebelum dan sesudah proses pembelajaran menggunakan video dan LKPD. Rata-rata nilai pretest 42,25 sedangkan rata-rata postest sebesar 83,50 dan terdapat peningkatan hasil belajar setelah dilakukan proses pembelajaran menggunakan Video dan LKPD secara signifikan sebesar 41.25. Kata kunci: zat ekstraktif; holoselulosa; selulosa; lignin; LKPD.

Respons mahasiswa terhadap buku panduan dan kegiatan pelatihan “teknik monitoring kura-kura cyclemys oldhamii” Annisa Puji Astuti; Aceng Ruyani; Wiryono Wiryono
PendIPA Journal of Science Education Vol 1, No 1 (2017): october
Publisher : University of Bengkulu

This study aimed to know the students’s response to the guidebooks and training activities entitled "Monitoring Technique of the Cyclemys oldhamii Tortoise " in the ex situ conservation area Taman Pintar University of Bengkulu. The results showed that students responded positively to the guidebooks and training activities. Forestry students was very interested in the field practices related to the technique and monitoring activities of the C.oldhamii tortoise, while MIPA students was interested in knowledge of the habitat, morphology, and its conservation. Forestry students showed the biggest response to conserve C.oldhamii and other tortoises, meanwhile MIPA students was more interested to do the next observations and research about C.oldhamii and other tortoises for thesis research. Forestry and MIPA students could explain the benefits and plans after the training activities "Technique Monitoring of the Cyclemys oldhamii Tortoise" well.

Studi Komunitas Nekton Di Kawasan Konservasi Kura-Kura Universitas Bengkulu Dan Pengembangan Pembelajaran Berbasis Lingkungan Desi Enersy; Bhakti Karyadi; Endang Widi Winarni
PendIPA Journal of Science Education Vol 1, No 1 (2017): october
Publisher : University of Bengkulu

This study aims to inventory the type of necton, knowing the structure of the necton community and measuring the critical thinking skills of students of class VII.1 SMPN 1 Ujan Mas Kepahiang. The results showed that the necton obtained from the Taman Pintar pond amounted to 7 species and Pipi Putih Pond totaling 4 species. The necton species in the Taman Pintar pond with the highest KP, KS, and FK values are tin head fish with KP, KR, and FK values respectively 0.102 idv / m2, 75.71% and 83%. While on the Pipi Putih Pond is local catfish species with the value of KP, KR, FK of 0.01 idv / m2, 39.29% and 25%. Then dominance index (H ') in the Taman Pintar pond is 0.61 and C' Pipi Putih pond = 0.76. While the index of diversity of necton species in both ponds also belonged to very low category with H’ value of Taman Pintar Pond = 0.28 and H' of Pipi Putih pond = 0.17. The result of Percentage Of Agreement test showed that environment-based learning tools developed are included in the category highly feasible to be tested. Students’ critical thinking ability on the perpormance aspect shows 33 ,3 % percentage including critically critical criteria and 66,7 % including critical criteria. While Students’ critical thinking ability on the cognitive aspect shows four criteria, that are very critical as 26 %, crittical criteria 40 %, criteria critical enough 27 % and criteria less 7 %

Page 4 of 34 | Total Record : 334

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M. Lutfi Firdaus

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Kota bengkulu,

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