Bersama Perangi Narkoba: Bahaya dan Dampaknya

Tujuan kegiatan ini adalah untuk memberikan gambaran, pengetahuan dan pemahaman tentang jenis dan bahaya yang dapat ditimbulkan pada penyalahgunaan narkoba . Metode yang digunakan dalam kegiatan metode ceramah dan tanya jawab, dan terakhir evaluasi kegiatan. Hasil dari kegiatan ini adalah meningkatnya pemahaman siswa tentang narkoba dari 5% menjadi 78 % dari 82 siswa

Deskripsi Pemecahan Masalah Matematika Berdasarkan Langkah Polya Ditinjau dari Kepribadian Siswa Tipe Melankolis

This research is a qualitative research aimed to disclose math problem-solving ability based on Polya steps on SPLDV's material in term of student personalities melancholy (ME). Instruments used for this research are : 1) personality test is used to categorize the students based on their personality, 2) math problem-solving test is used to show students' ability in solving mathematical problems based on Polya steps, and 3) guided interview is contained guidelines aim to clarify answers and trace the process of students' thought in depth. Data are collected by test and interview and analyzed by using Miles and Huberman's data analysis. The research processes are: (a) formulated the indicators based on math problem-solving on Polya steps (b) formulated a valid and reliable instrument (personality test, math problem-solving task and guided interview) (c) collected the subject by providing personality type, (d) collected data to show the description of math problem-solving is done by the students, (e) did time triangulation to get valid data, (f) performed data analysis problem-solving based on personality types, (g) conducted a discussion of the results of analysis, (h) drew conclusions of the research. The results showed the subject of melancholy did the Polya steps in problem-solving, which are (1) understand the problem (2) plan a settlement (3) settle a plan (4) check back

Virulence of Brown Planthopper and Development of Core Collection of the Pest

Brown planthopper is the most important rice pest in Indonesia. Its high adaptability to feed and reproduce on previously introduced resistant varieties to form more virulent population often causes BPH outbreak and hopperburn that lead to total crop yield loss. Rice breeding for resistant to BPH requires information on the current status of BPH virulences in the fields to anticipate the virulence adaptation on new varieties. The objectives of this study were to investigate the degree of virulence of BPH populations and to cluster the BPH virulence to form BPH core collection. Thirteen BPH populations collected from paddy fields in six provinces (Banten, West Java, Central Java, East Java, South Kalimantan, and South Sulawesi) in 2011 and 2013 were tested on 10 differential rice varieties and seven host varieties of BPH populations, using the standard seedbox screening technique. Based on resistance reaction of four differential varieties (TN1, Mudgo, ASD7, and Rathu Heenathi), most BPH populations were identified as more virulent than biotype 4 (T1, Banten, PG, West Java; BY, East Java; B2 and B3, South Kalimantan; X1 and X3, South Sulawesi), four populations were biotype 4 (JWDL, Central Java; SD, East Java; X2 and X4, South Sulawesi), and one population each was biotype 3 (T2, Banten) and biotype 2 (S1, West Java). Populations X1 and B3 showed broad virulences to all varieties, whereas T2 was the least virulent. BPH field\u27s population had evolved into more virulence than biotype 4. Genotype resistance screening should use the BPH of this virulence population. Five BPH clusters which were further divided into 10 subclusters representing differential virulence toward 10 differential varieties were present in the tested BPH. Each virulence cluster was characterized by its ability to overcome four to eight single or double resistant genes. This BPH virulence core collection can be used in the characterization studies of candidate for resistant varieties or to form near-isogenic lines, or to study the insect and rice plant interaction