Factors Associated with Age of Menarche in Class VIII Students of MTsN Bukittinggi

Puberty in our lives usually begins at the age of 8 to 10 years and ending approximately at the age of 15 to 16 years, the onset of puberty in women is characterized by rapid physical growth, menarche, psychological changes and the emergence of secondary sex characteristics. Many factors internal and external factors related to the occurrence of menarche. Internal factors such as the status of maternal menarche (genetic), and external factors such as social, economic, nutrition, exposure to mass media and lifestyle. Thus the purpose of this study was to determine the factors associated with age at menarche VIII grade student MTsN type 1 Bukitinggi 2016. This study used descriptive qualitative approach is too in-depth interviews with 5 participants (students of class VIII). This research was conducted on 2 September 2016. The results of interviews conducted in participants gained five themes in this study are 1) Knowledge of menarche symptoms, 2) Genetic Influence, 3) Nutritional Status, 4) Habits Everyday, 5). Watching Tv activity. Suggestions For the results of this study can be used as reference materials and reference for other researchers associated with the research and increase knowledge and information to the participants about menarche

Kajian Potensi Limbah Pertanian Sebagai Sumber Karbon Pada Produksi Avicelase Dan CMCase Dari Bacillus Circulans

Avicelase and CMCase activity represent exocellulase and endocellulase, including two of the three types of cellulase in the cellulase system produced by Bacillus circulans. Expression both of them strongly influenced by the amount and type of carbon source in the production medium. The aims of this research were to determine the type and concentration of the best agricultural waste to generate avicelase and CMCase from B. circulans and their ability to degrade lignocellulosic substrates. Studied agricultural wastes are bagasse, corn stalks and husks. Agricultural waste is used as the sole carbon source in media production. Avicel is used as a comparable carbon source. Avicel and CMCase activity are determined based on the amount of the reducing sugars is generated by using the method of Somogy - Nelson. The results showed that all the studied agricultural waste was a potential carbon source better than ethical for avicelase and CMCase production from B. circulans. Agricultural waste bagasse was the best one. The use of 0.5 % bagasse produce CMCase and aviselase at 309.39 and 405.48 U / mL respectively. The resulting system was able to degrade bagasse , corn stalks and husks

Pengembangan Lembar Kerja Siswa (Lks) Berorientasi Model Pembelajaran Discovery Learning untuk Meningkatkan Keterampilan Berpikir Kritis Siswa pada Materi Sistem Pencernaan Kelas VIII SMP

The aim of this research was to increase critical thinking skill on the subject digestion system grade VIII junior high school. This research was conducted at the Laboratory of Biology Department of the University of Riau PMIPA FKIP and SMPN 23 Pekanbaru in March to September 2016. The research is a research development by using ADDIE model of integration to the stage of development. There are 5 LKS developed. Instruments of data collection in this study is the validation sheet LKS, and questionnaire responses of learners. After LKS developed, validated by 4 validator then the tests I in the 4th semester 20 students of biology education FKIP UR, and a second trial on 20 students of Class VIII SMPN 23 Pekanbaru. The tests showed the average score feasibility aspects of the content of 5 LKS developed very valid category is 4.21, the average score 4.34 categories designing aspect is very valid, and the mean score of the pedagogic aspect is 4.69 very valid category. The mean overall score of the fifth aspect is 4.41 LKS very valid category. I trial results showed the average score 4.21 with very good category. II trial results showed a mean score of 4.57 in very good categories. The results of the analysis of the answers to the second trial showed a mean value of 87 in good categories. LKS oriented discovery learning model can increase the understanding and knowledge about the digestion system and can increase critical thinking skill of student

Efektivitas Penggunaan Media Promosi Kesehatan Video Yoga Dalam Meningkatkan Motivasi Kesehatan Wanita Usia Subur Tentang Kesehatan Reproduksinya

Motivasi kesehatan wanita usia subur merupakan dorongan mental yang dapat tumbuh dari dalam diri wanita usia subur sendiri maupun akibat rangsangan dari luar kemudian mengakibatkan seseorang (wanita usia subur) untuk bertindak memenuhi kebutuhan akan kesehatan reproduksinya. Tujuan penelitian ini adalah untuk mengetahui efektivitas penggunaan media promosi kesehatan video yoga dalam meningkatkan motivasi kesehatan wanita usia subur tentang kesehatan reproduksinya. Penelitian ini menggunakan rancangan pre eksperimental dan menggunakan pendekatan one group pretets-postest without Control Group Design. Subjek penelitian adalah Wanita Usia Subur (20-45 tahun) dengan populasi sebanyak 50 orang diambil dengan metode convenience sampling, tetapi yang bersedia menjadi responden sebanyak 25 orang. Analisis data dilakukan menggunakan uji wilcoxon. Berdasarkan hasil analisis Uji Wilcoxon dengan program SPSS, diperoleh nilai Z = -2,586 dengan taraf significancy 0,001 (p<0,05), nilai Sig. (2-tailed) d” taraf nyata (á/2) dan dapat ditarik kesimpulan H0 ditolak. Penggunaan Media Promosi Kesehatan Video Yoga Efektif Dalam Meningkatkan Motivasi Kesehatan Wanita Usia Subur Tentang Kesehatan Reproduksiny

Analisis Kepribadian Tokoh-tokoh dan Nilai Karakter dalam Novel Keling dan Kumang Karya Masri Sareb Putra (Pendekatan Psikologi Sastra)

Tujuan penelitian ini untuk menganalisis kepribadian tokoh-tokoh dan nilai karakter dalam novel Keling dan Kumang karya Masri Sareb Putra (pendekatan psikologi sastra). Penelitian dilakukan karena novel Keling dan Kumang adalah salah satu di antara novel yang diangkat dari legenda Dayak Iban yang menyelipkan kepribadian tokoh dan nilai karakter yang dominan dalam pencitraan nya. Keling dan Kumang merupakan salah satu cerita rakyat yang paling populer di Masyrakat Dayak, ada yang menyebutkan Keling dan Kumang sebagai dewa dan dewi. Novel ini bercerita tentang kisah cinta Keling dan Kumang serta novel ini juga mengisahkan suka duka kehidupan sesama manusia. Pendekatan yang digunakan adalah pendekatan kualitatif dengan metode deskriptif. Bentuk penelitian studi pustaka dan teknik pengumpulan data menggunakan teknik simak catat. Alat pengumpulan data berupa lembar catatan dan kartu data. Hasil penelitian ini menunjukan (a) kepribadian tokoh-tokoh yang terdapat dalam novel Keling dan Kumang karya Masri Sareb Putra yaitu kepribadian tokoh id (das es), kepribadian tokoh ego (das ich), dan kepribadian tokoh superego (das euber ich).(b) nilai karakter dalam novel Keling dan Kumang karya Masri Sareb Putra ditemukan tujuh nilai karakter yaitu nilai religius, nilai jujur, nilai toleransi, nilai disiplin, nilai kreatif, nilai peduli lingkungan, dan nilai tanggungjawab. Dalam novel Keling dan Kumang karya Masri Sareb Putra memenuhi kriteria bahan ajar, hal ini dapat dibuktikan dengan hasil analisis bahwa dalam novel Keling dan Kumang ini sudah memenuhi aspek kriteria pemilihan bahan ajar yang terdapat pada kemampuan siswa dan standar isi. Berdasarkan hasil penelitian tersebut dapat disimpulkan bahwa kepribadian adalah bagian jiwa yang membangun keberadaan manusia menjadi satu kesatuan. Sedangkan, nilai karakter merupakan bagian dari karakter yang diyakini kebenarannya dalam kehidupan bermasyarakat sebagai indikator terhadap baik buruknya suatu tindakan

Consumer Brand Engagement on Brand Loyalty: the Role of Brand Satisfaction as A Mediating Variable

Purpose: this study examined the impact of CBE on brand loyalty directly and indirectly through brand satisfaction. Design/methodology/approach: the survey was given to 80 Islamic banking customers from four leading Islamic banks in Indonesia. The analysis used partial least squares structural equation modeling. Findings: the research findings found a direct relationship between CBE and brand loyalty and an indirect relationship using the brand satisfaction variable as the mediating variable. Research limitations: this study did not use indicators that focus on Islamic banking. Practical implications: these studies are essential to building long-term success. For brand managers, concrete steps can be taken by involving consumers in unique and memorable activities. Originality/value: CBE had an indirect effect on brand loyalty by using brand satisfaction as a mediating variable in Islamic banking. Keywords: consumer brand engagement, brand satisfaction, brand loyalty, Islamic bankin

Penentuan Entrance Skin Exposure (ESE) Pada Pesawat Mammografi Mammomat 1000 Dengan Filter Molybdenum (Mo) Dan Rhodium (Rh)

Mammography is a radiographic examination to detect breast cancer earlier. However, the USAge of radiation with low kVp can cause high dose and this becomes the reason why monitoring the dosage during the mammography process is an important thing to do. One of the techniques to monitor the radiation level is done based on the Entrance Skin Exposure (ESE) value. This research was aimed to determine the ESE value using molybdenum (Mo) and rhodium (Rh) as the filter at Mammomat 1000 mammographics system.The research was started by measuring the consistency of the X-ray tube voltage (kVp ). After that, the ESE value at the target/filter Mo/Mo and Mo/Rh was measured using a Barracuda Multi Purpose Detector (MPD). The tube voltage during the research was 26, 28, and 30 kVp with fixed electrical current-time 100 mAs. The result shows that ESE value resulted at the target/filter Mo/Mo and Mo/Rh is tolerable, except at tube voltage 30 kVp with target/filter Mo/Mo. The comparison of ESE value shows that Mo/Rh has lower ESE value than Mo/Mo. Keywords: Entrance Skin Exposure (ESE), mammography, Barracuda Multi Purpose Detector (MPD) Pemeriksaan mammografi merupakan tindakan efektif dalam mendeteksi adanya kanker payudara sejak dini. Namun demikian, penggunaan teknik radiasi dengan kVp rendah pada mammografi dapat menyebabkan dosis tinggi. Oleh karena itu, pemantauan dosis pada pemeriksaan mammografi sangat penting dilakukan. Salah satu teknik pemantauan dosis radiasi dapat dilakukan dengan nilai Entrance Skin Exposure (ESE). Penelitian ini bertujuan untuk menentukan nilai ESE dengan filter molybdenum (Mo) dan rhodium (Rh) pada pesawat mammografi Mammomat 1000. Penelitian diawali dengan pengukuran konsistensi keluaran tegangan tabung sinar-X (kVp output). Selanjutnya dilakukan pengukuran nilai ESE pada target/filter Mo/Mo dan Mo/Rh dengan menggunakan Multi Purpose Detector (MPD) merek Barracuda. Tegangan tabung yang digunakan dalam penelitian yaitu 26, 28 dan 30 kVp dengan arus-waktu tabung tetap yaitu 100 mAs. Hasil penelitian menunjukan bahwa nilai ESE yang dihasilkan pada target/filter Mo/Mo dan Mo/Rh masih berada dalam batas toleransi yang direkomendasikan, kecuali pada pada tegangan tabung 30 kVp untuk Mo/Mo. Hasil perbandingan nilai ESE menunjukan bahwa Mo/Rh memiliki nilai ESE yang lebih rendah dibandingkan dengan Mo/Mo