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Pengembangan Pembelajaran Blended Learning Berbasis Website Di Program Studi Pendidikan Biologi Universitas Samudra Ruhama Desy; Setyoko Setyoko
Jurnal Pendidikan Biologi Vol 6, No 3 (2017): Jurnal Pendidikan Biologi
Publisher : Magister Pendidikan Biologi, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpb.v6i3.7902

Abstract

The development of website based blended learning is aimed to promote change in the acceleration of learning process in higher education which is not bound by space and time, thus will directly improve the quality of learning process in the Study Program of Biology Education of University of Samudra. Utilization of information and communication technology in the development of website based blended learningin higher education combines face to faceand online.Research is functioned as learning mediation between lecturers and students of Study Program of Biology Education of University of Samudra. Research and Development was performed through the model of 4D with stages consisted of Define, Design, Developmentand Disseminatewhich were modified in accordance with the needof researcher. Subjects of experiment were students, lecturers, as well as information and communication technology experts. Instruments of study used were validation sheet and questionnaire. Analysis of qualitative data was done with stages of collecting data, reducing data, presenting data, and drawing conclusion. Result of research based on validation test showed that the validation of media expert was 82.65% with qualification of practical and did not need to be revised, the second validation of teaching expert obtained was 86.25% with qualification of highly practical and did not need to be revisedand validation of respondent by students obtained a value of 90.16% with qualification of highly practical and did not need to be revised. Based on the validation result, the development of website based blended learningis suitable to be used by the students of Biology Education of University of Samudra in learning which combines face to face learning at class and online.
PENGARUH PEMBERIAN EKSTRAK DAUN SIRSAK (Annona muricata L) TERHADAP MORTALITAS KEONG MAS ( Pomacea canaliculata L) Maranda Bahagia; Ruhama Desy; Elfrida Elfrida
Jurnal Jeumpa Vol 5 No 2 (2018): Jurnal Jeumpa
Publisher : Program Studi Pendidikan Biologi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jj.v5i2.1389

Abstract

Penghambat peningkatan produktivitas tanaman padi (Orzya sativa ) adalah hama/organisme pengganggu tanaman. Keong mas (Pomacea canaliculata L) merupakan hama pada tanaman padi (Oryza sativa). Pada umumnya petani menggunakan pestisida kimiawi yang dapat mencemari lingkungan sekitar. Salah satu alternatif untuk mengurangi pestisida kimiawi adalah menggunakan tanaman daun sirsak (Annona muricata L). Dalam daun sirsak (Annona muricata L) terdapat senyawa seperti tanin, flavonoid,saponin dan acetogenin yang dapat meracuni dan membunuh (Pamacea canaliculata L). Penelitian ini bertujuan untuk melihat pengaruh pemberian ekstrak daun sirsak (Annona muricata L) terhadap tingkat mortalitas keong mas (Pamocea canaliculat L) dan konsentasi yang paling optimal terhadap mortalitas mortalitas keong mas (Pamocea canaliculat L). Metode eksperimen dengan rancangan percobaan yang digunakan adalah rancangan acak lengkap (RAL). Penelitian ini meggunakan kontrol sedangkan perlakuan adalah menggunakan ekstrak daun sirsak dengan kosentrasi 30%, 40%, 50%, 60%. Pengamatan dilakukan setiap 24 jam selama lima hari. Analisis data dilakukan dengan menggunakan ANOVA dan uji lanjut DMRT. Hasil analisis diperoleh bahwa ekstrak daun sirsak (Annona muricata L) memiliki pengaruh nyata terhadap mortalitas keong mas (Pomacea canaliculata L) yaitu Fhitung = 5 >Ftabel = 2,87 (5%). Konsentrasi yang paling optiml dalam mortalitas keong mas (Pomacea canaliculata L) yaitu ekstrak daun sirsak (Annona muricata L) dengan konsentrasi 60% ( 60 ml ekstrak daun sirsak(Annona muricata L) + 40 ml aquades.