PENERAPAN MODEL CONTEXTUAL TEACHING AND LEARNING (CTL) UNTUK MENINGKATKAN HASIL BELAJAR DALAM PELAJARAN GEOGRAFI DI KELAS XI SMA NEGERI 9 TAKENGON

Model pembelajaran Contextual Teaching and Learning (CTL) merupakan suatu strategi pembelajaran yang menekankan kepada proses keterlibatan siswa secara penuh untuk menemukan materi yang dipelajarinya dan menghubungkannya dengan situasi kehidupan nyata. Rumusan masalah: (1) Apakah penerapan model pembelajaran CTL dapat meningkatkan hasil belajar siswa kelas XI SMA Negeri 9 Takengon? (2) Bagaimana keterampilan guru dan siswa dalam kegiatan pembelajaran dengan model CTL? (3) Bagaimana aktivitas guru dan siswa dalam kegiatan pembelajaran yang mencerminkan keterlaksanaan pembelajaran model CTL? (4) Bagaimana respon siswa terhadap penggunaan model CTL dalam pembelajaran? Tujuan penelitian ini adalah untuk mengetahui peningkatan hasil belajar siswa melalui penerapan model pembelajaran CTL, keterampilan guru dalam mengelola pembelajaran, aktivitas guru dan siswa dalam kegiatan pembelajaran, serta untuk mengetahui respon siswa terhadap penggunaan model CTL dalam pembelajaran. Populasi penelitian ini adalah seluruh siswa kelas XI SMA Negeri 9 Takengon. Sampel yang dipilih adalah siswa kelas XI-I yang berjumlah 32 orang. Materi yang diajarkan adalah lingkungan hidup dan pelestariannya. Berdasarkan hasil penelitian, dapat dilihat bahwa (1) ketuntasan klasikal siklus I 56,25 % dan siklus II 90,63 % sehingga dapat dinyatakan bahwa penerapan model CTL dapat meningkatkan hasil belajar siswa (2) Keterampilan guru dapat dikategorikan sedang dengan perolehan skor 2,58 pada siklus I dan baik dengan skor 3,20 pada siklus II. (3) Kesesuaian aktivitas guru dan siswa pada siklus I tidak sesuai dengan RPP adalah 55,55% sedangkan pada siklus II hanya 11,11% dan 88,88% telah sesuai dengan RPP. (4) Respon siswa terhadap pembelajaran CTL sebanyak 85,95% adalah menarik dan 81,3% siswa menilai bahwa pembelajaran CTL menyenangkan

Pulmonary Tuberculosis Suspects and Their Determinants among Boarding Students in Islamic Boarding Schools in the Garut District

Living in a crowded Islamic boarding school (pondok pesantren) may cause tuberculosis (TB) transmission, poor sanitation and personal hygiene presenting risks for residents’ health. Sleeping together in a small room may increase the risk of TB transmission in the pondok pesantren. The objective of this study is to assess TB suspects and their determinants among boarding students at Islamic boarding schools in Garut. A cross-sectional design was employed in this study. Applying two stages of cluster sampling, 429 samples were selected from six Islamic boarding schools in the Garut District. Data was collected through interviews, using a questionnaire that was pre-tested for validity and reliability, and analyzed using a multiple logistic regression technique. This study determined that almost 22% of the boarding students, commonly known as santri, had been suffering from a cough for at least 2 weeks (TB suspects). Half of them (50.8%) are women, living in environments prone to TB transmission (62.5%), having low levels of knowledge of TB (70.6%), exhibiting poor TB prevention behavior (52.7%), and around 37% are smokers. The analysis proves that sex and smokinghabits are associated with TB suspects. Smoking habits are the most dominant risk factor for TB suspects after controlling for knowledge of TB. The risk of smoking santris becoming a TB suspect is 2.7 times higher than for those who do not smoke, after controlling for knowledge of TB. Keywords: tuberculosis, boarding school, boarded students

Effect of Plant Gowth Regulator on The Gowth of Zygotic Embryos in Three Types of Oil Palm Fruit (Elaeis guineensis Jacq.) in Tissue Culture

Surahman H, Sulaksono G, Sembiring Z, Kurnianingsih A, Priadi DP, Asmono D. 2020. Effect of plant gowth regulator on the gowth of zygotic embryos in three types of oil palm fruit (Elaeis guineensis Jacq.) in tissue culture. Jurnal Lahan Suboptimal : Journal of Suboptimal Lands 9(2): 149-159.Embryo culture is a widely used and effective way of overcoming the dormancy nature of seeds in oil palm.  At the germination stage, the influence of gowth regulators play an important role although in relatively lower concentrations in the germination media. This aim research determined the effect of adding various concentrations of gowth regulator on the three types of oil palm fruit based on the thickness of the shell. This research carried out at the Tissue Culture Laboratory of PT. Sampoerna Ago Tbk. from September 2018 to January 2019. The gowth regulator substances used in this study were NAA, BAP and GA3. The composition of the gowth regulators used were H1 = 0.05 mg/L NAA + 0.1 mg/L BAP + 0.1 mg/L GA3, H2 = 0.05 mg/L NAA + 0.3 mg/L BAP + 0.1 mg/L GA3, H3 = 0.05 mg/L NAA + 0.5 mg/L BAP + 0.1 mg/L GA3 and H4 = No gowth regulator. While the types of oil palm fruit used were C1 = Dura, C2 = Tenera and C3 = Pisifera. This research used a factorial complete randomized design with three replications. The results showed that in general the use of gowth regulator substances H1 = 0.05 mg/L NAA + 0.1 mg/L BAP + 0.1 mg/L GA3 and the type of dura fruit showed positive results based on viability, scoring, survival and height of plantlets when compared with other treatments

PENGARUH CARDIOPULMONARY BYPASS TERHADAP JUMLAH LEUKOSIT PADA OPERASI CORONARY ARTERY BYPASS GRAFT

Background: Recently more cardiopulmonary bypass device is used on coronary artery bypass graft surgery procedure. The utilization of cardiopulmonary bypass device is increasing total leukocyte count which could be one sign the Systemic inflammatory response syndrome (SIRS). Purpose: to understand the effect of cardiopulmonary bypass device utilization on leukocyte count increase on coronary artery bypass graft surgery . Method: this is a retrospektive observational study on 18 patients that underwent coronary artery bypass graft surgery using Cardiopulmonary bypass device. Periphery blood samples for the leukocyte count was obtained pre-sternotomy or before surgery (Leukocyte 1) during CPB and 30th minute (Leukocyte 2) during CPB. Blood sample was count using automatic device. Paired t-test is used for statistical analysis (confidence interval < 0.05). Result: patient’s data characteristic will be presented as tables. This research shows significant results on Leukocyte 1 and Leukocyte 2, which leukocyte 1 has an average 6899.4 and the leukocyte 2 has an average of 8470. p = 0.000 ( p < 0.05 ) respectively. Conclusion: there is an increase on leukocyte count during CPB device utilization on 30th minute. Keyword: Leukocyte, cardiopulmonary bypas

Pulmonary Tuberculosis Suspects and Their Determinants Among Boarding Students in Islamic Boarding Schools in the Garut District

Living in a crowded Islamic boarding school (pondok pesantren) may cause tuberculosis (TB) transmission, poor sanitation and personal hygiene presenting risks for residents' health. Sleeping together in a small room may increase the risk of TB transmission in the pondok pesantren. The objective of this study is to assess TB suspects and their determinants among boarding students at Islamic boarding schools in Garut. A cross-sectional design was employed in this study. Applying two stages of cluster sampling, 429 samples were selected from six Islamic boarding schools in the Garut District. Data was collected through interviews, using a questionnaire that was pre-tested for validity and reliability, and analyzed using a multiple logistic regression technique. This study determined that almost 22% of the boarding students, commonly known as santri, had been suffering from a cough for at least 2 weeks (TB suspects). Half of them (50.8%) are women, living in environments prone to TB transmission (62.5%), having low levels of knowledge of TB (70.6%), exhibiting poor TB prevention behavior (52.7%), and around 37% are smokers. The analysis proves that sex and smokinghabits are associated with TB suspects. Smoking habits are the most dominant risk factor for TB suspects after controlling for knowledge of TB. The risk of smoking santris becoming a TB suspect is 2.7 times higher than for those who do not smoke, after controlling for knowledge of TB. Keywords: tuberculosis, boarding school, boarded students