Bilqis Bilqis, Bilqis
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PERBEDAAN HASIL BELAJAR SISWA PADA MATA PELAJARAN ILMU PENGETAHUAN ALAM ANTARA MODEL PROBLEM BASED LEARNING DENGAN MODEL PEMBELAJARAN LANGSUNG Bilqis, Bilqis; Syachruroji, A; Taufik, M
Jurnal Pendidikan Sekolah Dasar Vol 2, No 2 (2016): Jurnal Pendidikan Sekolah Dasar (JPSD) UNTIRTA
Publisher : Jurnal Pendidikan Sekolah Dasar

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Abstract

Abstrak. Penelitian ini bertujuan untuk mengetahui perbedaan hasil belajar siswa, hasil belajar siswa dengan model apa yang lebih tinggi, dan aktivitas siswa pada proses pembelajaran dengan menggunakan model Problem Based Learning pada mata pelajaran Ilmu Pengetahuan Alam kelas V pada materi peristiwa alam di Indonesia. Penelitian ini merupakan kuasi eksperimen yang dilakukan pada siswa kelas V SDN Panancangan 3 Kota Serang tahun ajaran 2015/2016. Pada penelitian ini, kelas V B sebagai kelas eksperimen dan kelas V A sebagai kelas kontrol. Hasil penelitian diperoleh dari uji inferensial terhadap hipotesis. Dari hasil uji beda nilai kedua kelas pada taraf signifikan = 0,05 diperoleh thitung > ttabel yaitu 2,94 > 2,000 maka H0 ditolak Ha diterima. Peneliti juga melakukan uji pihak kanan diperoleh diperoleh thitung > ttabel yaitu 2.94 > 1,167 maka H0 ditolak Ha diterima. Berdasarkan hasil penelitian dapat disimpulkan bahwa terdapat perbedaan hasil belajar kognitif siswa yang menggunakan model Problem Based Learning dengan yang menggunakan model pembelajaran langsung serta hasil belajar kognitif siswa yang menggunakan model Problem Based Learning lebih tinggi daripada siswa yang menggunakan model pembelajaran langsung. Dilihat dari persentase hasil observasi aktivitas siswa secara keseluruhan memperoleh kriteria sangat baik, baik dan cukup sehingg dapat disimpulkan bahwa siswa pada kelas eksperimen terlibat aktif dalam proses pembelajaran. Kata Kunci :  Model Problem Based Learning, Model Pembelajaran Langsung, Hasil Belajar Kognitif  Abstract. This research is aimed to find out the differences of study result, study result with any model higher, and the activity of students in the learning process by using a model of Problem Based Learning on the subjects of Natural Sciences class V on the material nature of events in Indonesia. This method used was quasi-experiments conducted on students of class V SDN Panancangan 3 Serang city 2015/2016 school year. In this study, class V B as an experimental class and class V A as the control class. The results were obtained from the inferential test of the hypothesis. From the results of different test values of both classes at significant level = 0.05 obtained thitung > ttabel is 2,94 > 2.000 then H0 is rejected Ha accepted. Investigators also obtained the right to test the obtained thitung > ttabel is 2,94 > 1.167 then H0 is rejected Ha accepted. Then can be concludid that study result towards the students of subject of natural class use the model of problem based learning and the model of direct learning is different significant and study result of students who used the model of Problem Based Learning is higher than students who used the model of direct learning l. Judging from the percentage of student activity observation as a whole possesses the criteria very well, good and enough so that it can be concluded that students in the experimental class were actively involved in the learning process. Keywords : Problem Based Learning, Direct Learning, Cognitive Learning
Oocyte In Vitro Maturation with Crude Sperm Extract Protein of Bull’s Spermatozoa Bilqis, Bilqis; Rahayu, Sri; Ciptadi, Gatot
The Journal of Experimental Life Science Vol 6, No 1 (2016)
Publisher : Graduate School, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2016.006.01.04

Abstract

Oocyte In vitro maturation (IVM) is one of the important parts for in vitro fertilization (IVF). The success of oocyte maturation is influenced by the composit ion and the quality of IVM medium. Culture medium which used to IVM not only influences the oocyte process to reach metaphase II and proceed the fertilization, but also influences to developmental of an embryo. Crude sperm extract has high-level protein kinase and contains some sperm proteins. Crude sperm extracts expected as natural maturation medium that can increase the success of In Vitro Maturation (IVM). The characterization of crude sperm extracts profile with sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). Oocyte maturation is observed in the 26th hour from the first culture. The result of crude sperm extract characterization obtained from the protein with the molecular weight is 176.8, 63.2, 58.4, 55.3, 52.4, 49.7, 44.6, 38.02, 36.03, 34.15 and 26.8 kDa. Oocyte maturation with concentration of crude sperm extract 1.5 µg.mL-1 with 71.6% matures oocyte and oocyte maturation with concentration of crude sperm extract 2.5 µg.mL-1 with 75% matures oocyte.Keywords: Crude Sperm Extract, In Vitro Maturation, Oocyte