EFEKTIVITAS GRANULA EKSTRAK ETANOL BIJI PEPAYA (Carica papaya L.) TERHADAP MORTALITAS LARVA NYAMUK Aedes aegypti L.

Oleh: Megah Tri Rahayu

Aedes aegypti L. is a vector that cause  Dengue Hemorrhagic Fever disease. Most of People used chemical insecticides to control the mosquito which have negative impacts, it cause resistance vector, so the experts look for another alternative with using biological control such as ethanol extract granules papaya seeds. Papaya seeds have larvasidal activity because it produces secondary metabolites like alkaloids and saponins. Serial concentrations of ethanol extract of papaya seed granules used in this study was 5 ppm, 10 ppm, 100 ppm, 1000 ppm, and 3000 ppm and performed 3 replications. Each treatment used 20 test larvae. Larva used as a test is the final larval instar III and early IV. the data obtained by the Aedes aegypti larvae mortality at 12 hours, 24 hours, 36 hours, and 48 hours. Data analysis using probit analysis. Based on the research and analysis of the data obtained it can be concluded LC₅₀ 24 hours and 48 hours was 15.572 ppm and 37.772 ppm. LC₉₀ 24 hours and 48 hours was 3.109 ppm and 9.970 ppm. LT₅₀ and LT₉₀ of 33.06 hours and 49.10 hours with concentrations of ethanol extract granules papaya seeds 10 ppm.It can be concluded that extract granules papaya seeds has insectisidal effect on Aedes aegypti larvae mortality.

PENGARUH GRANULA EKSTRAK ETANOL DAUN MINDI (Melia azedarach L.) TERHADAP MORTALITAS LARVA NYAMUK Aedes aegypti L.

Oleh: Alvi Nur Khayyunida

Dengue Hemmorhagic Fever is a disease transmitted through the bite of A. aegypti females containing dengue virus in mosquito body. Today's effort emphasis on the use of chemical insecticides, whereas chemical insecticides can have a negative impact. Based on that problem, one of alternative by biological control using ethanol leaf extract granules chinaberry (Melia azedarach L.). Chinaberry leaves (Melia azedarach L.) were used in the study expressed insecticidal properties due to produce secondary metabolites that triterpenoids and flavonoids. Serial concentrations of ethanol extract of leaves of shade-tree granules used in this study was 5 ppm, 25 ppm, 250 ppm, 2500 ppm, 3000 ppm and performed in 3 replications. Each treatment used 20 test larvae. Larva used as a test is the final larval instar III and early IV. the data obtained by the Aedes aegypti larvae mortality at 12 hours, 24 hours, 36 hours, and 48 hours. Data analysis using probit analysis. Based on the research and analysis of the data obtained it can be concluded LC₅₀ 24 hours and 48 hours was 55.652 ppm and 400.209 ppm. LC₉₀ 24 hours and 48 hours was 13.103 ppm and 29.910 ppm. LT₅₀ and LT₉₀ of 24.854 hours and 44,590 hours with concentrations of ethanol extract granules mindi leaf 25 ppm. It can be concluded that ethanol leaf extract granules chinaberry (Melia azedarach L.) has insectisidal effect on Aedes aegypti larvae mortality

PENINGKATAN AKTIVITAS DAN HASIL BELAJAR IPA DENGAN MENGGUNAKAN MODEL PEMBELAJARAN DOUBLE LOOP PROBLEM SOLVING (DLPS) PADA SISWA SMP NEGERI 6 JEMBER (Pokok Bahasan Sistem Pernapasan pada Kelas VIIIA Semester Ganjil Tahun Ajaran 2013-2014)

Oleh: Siska Suryaning B.L

Based on the previous research Double Loop Problem Solving (DLPS) model is able improve students’s thinking, listening, and speaking potential. The research objective were increasing students’s activity and achievement VIII A grade at state Junior High Scool (SMPN) 6 Jember on human respiration system. This research is a classroom action research. The learning process used two cycles which in the last of cycle done the post- test.  The result of this research show that DLPS model increased students’s activity from 67% in the first cycle to 88% in second cycle. DLPS model increased the students’s cognitive and affektive achievement, where for cognitive result increased from 33,33% in pra-cycle increased to 61,11% of first cycle and increased to 89,99% of second cycle. The students’s achievement score increased from 70% in first cycle increased to 88% of second cycle, it can be concluded that the DLPS model can improve the student’s activities and students’s achievement for respiration system topic in Biology.        

Pengembangan Bahan Ajar IPA Terpadu Berbasis Inkuiri Terbimbing dengan Pictorial Riddle Materi Sistem Pernapasan Manusia Kelas VIII SMP

Oleh: Dian Dwi Lestari

Based on a theory, inqury  pictorial riddle approach consist of five stages namely in formulating the problem, make hypothesis, collect the data, test the hypothesis, and make conclusions. It is believed can improve student’s intellectual. This research intended to develop inquiry pictorial riddle-based students book on topic of the respiration system of human for VIII grade of junior high school. This research refered to Borg and Gall (1983) model, but it was restricted in  the  fifth  step (research and information collecting,  planning, develop prelminary form of product, preliminary field testing, main product revision). This research assesed by six validators for assess the quality of the book and twelve students in preliminary field testing. Data was obtained from student and teacher questionnaires, validator sheets, questionnaires of the readability test and difficulty level, and student’s response questionnaires. The result of this research showed that inquiry pictorial riddle-based student book is valid, with validation average from all validators 88,16% and the result of the readability test and difficulty level are 82,18% and 82,86% which positive respons.