Determinants of the quality of life among pre-elderly and elderly population

Health problems will appear along with the increasing aging of someone that can reduce the quality of life. Many factors can decreases in quality of life. The purpose of this study was to find the determinants of the quality of life to the pre-elderly and elderly population in the working area of Harapan Raya public health center Pekanbaru, Riau, Indonesia. The design of the research was cross sectional in the pre-elderly population (45–59 years) and the elderly population (60 years and above). There were 103 respondents participated in this study gathared with consecutive sampling techniques. Quality of life was measured using WHOQOL SF-36 questionnaire. Independent variables were body mass index, physical activity, chronic disease, smoking behavior, employment status, residence status, marital status, education, age, and sex. Data were analyzed by univariate, bivariate with Chi square test, and multivariate with multiple logistic regression. The proportion of subjects with low quality of life was 18.4%. Variables related to bivariate were body mass index, smoking behavior, chronic disease, employment status, and sex. Chronic disease (OR=5.5; 95% CI=1.173–25.674) significantly affected the quality of life after being controlled by sex. The quality of life could be explained by this factor about 17%. It is necessary to manage chronic diseases in the public health center and provide information to the pre-elderly and the elderly through counseling, print and electronic media

PRELIMINARY STUDY: CHEMISTRY LABORATORY VIRTUAL INNOVATION AS AN OPTIMIZATION OF SCIENCE LEARNING DURING THE COVID-19 PANDEMIC

The purpose of this research is to conduct a preliminary study to create a virtual chemistry laboratory innovation to optimize learning during the Covid-19 pandemic in the Natural Science Education Study Program of the Teacher Training and Education Faculty Universitas Sebelas Maret (FKIP UNS). The Natural Science Education Study Program of FKIP UNS itself teaches chemical concepts that require laboratory activity. This study used the descriptive qualitative method. Data was collected using observation, interviews, and analysis of related documents and equipped with a Focus Group Discussion (FGD) with students and lecturers (Science Education and Chemistry Education FKIP UNS). The results showed that 11 chemistry practicums required virtual laboratory innovation in the Natural Science Education Study Program of FKIP UNS due to restrictions on the use of laboratories by the campus. It was concluded that a virtual chemistry laboratory was needed as an alternative to student practicum activities to maintain and optimize laboratory skills in online learning. In addition, the developed virtual laboratory needs to be embedded online and can be accessed through various gadgets so that it can be used anytime and anywhere

Keterlaksanaan Sintaks Model Pembelajaran Kooperatif Tipe Think Pair Share dengan Strategi Mind Mapping di SMK Negeri 2 Lumajang

Pembelajaran kooperatif tipe think pair share dengan strategi mind mapping merupakan pembelajaran yang menekankan kesuksesan kelompok dalam bentuk penguasaan dan pemahaman materi. Penelitian ini bertujuan untuk mengetahui keterlaksanaan sintaks dan aktivitas siswa. Jenis penelitian ini adalah Penelitian Tindakan Kelas yang dilaksanakan dalam dua siklus. Instrumen penelitian yang digunakan antara lain lembar observasi dan lembar angket. Teknik analisis data menggunakan rumus rata-rata dan persentase. Hasil penelitian menunjukkan 1) Pada siklus I keterlaksanaan sintaks diperoleh rata-rata 3,14 (sangat baik), pada siklus II sebesar 3,32 (sangat baik), 2) Respon siswa mencapai persentase sebesar 95,3% (sangat baik). Kata kunci : think pair share, strategi mind mappin

Pengaruh Ekstrak Daun Sukun (Artocarpus altilis) Terhadap Kepadatan Kolagen dalam Proses Penyembuhan Luka Eksisi Tikus Putih (Rattus norvegicus)

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh ekstrak daun sukun (Artocarpus altilis) terhadap kepadatan serabut kolagen dalam penyembuhan luka eksisi pada tikus putih (Rattus norvegicus). Dua puluh ekor tikus jantan dibagi secara acak menjadi lima kelompok, terdapat kontrol negatif (K-) yang diberikan basis salep, kontrol positif (K+) yang diberikan povidone iodine 10%, kelompok perlakuan (P1, P2, P3) yang diberikan salep ekstrak daun sukun 6,25%; 12,5%; dan 25%. Terapi diberikan sekali sehari selama empat belas hari. Hasil uji nonparametrik Kruskal-Wallis menunjukkan perbedaan nyata (p0,05), tetapi berbeda nyata dengan kelompok K- dan K+. Kesimpulan dari penelitian ini adalah ekstrak daun sukun efektif untuk meningkatkan kepadatan kolagen dalam proses penyembuhan luka eksisi

Valuation Of Reload Call Option With Binomial Tree

Along with the rapid growth of investment and finance, the investors compete with each other to find a way to maximize pro_ts and minimize losses. In option trading, one of the ways used is adding a reload feature on the option. Reload option is option thatgive the right to its holder to exercise the option, then renew it at some time prior to maturity. In this research, we study how to determine the pricing of reload call option with the Black-Scholes stock price model and the binomial tree, then applied to the stock of Telekomonikasi Indonesia (TLKM.JK). From this study, we obtain the valuation of reload call option which is simple and easy in interpretation. In addition we can also conclude that if the time to maturity is longer, the price of reload call option is more expensive and if the exercise price is higher, the price of reload call option is cheaper. Keywords: option, reload option, reload call option, Black-Scholes stock price model

Single Premium of Equity-Linked with CRR and CIR Binomial Tree

Unit-linked life insurance is a life insurance product that is a hybrid because it provides two benefits at once, life insurance benefit and investment benefit. Equity-linked is a type of unit-linked life insurance that invest premiums paid partly in shares. Some of these insurance policies include options that give the right to the policyholder to terminate their policy contract and receive some cash. In this research, we study how to determine the amount of single premium endowment equity-linked using Cox, Rubenstein, and Ross (CRR) and Cox, Ingersoll, and Ross (CIR) binomial tree. CRR binomial tree is used to predict the stock price of several period ahead, while CIR binomial tree is used to predict the interest rate. Keywords : equity-linked, single premium, binomial tree, stock price, interest rat

Pohon Binomial Suku Bunga Model Cox, Ingersoll, and Ross (CIR)

Pergerakan pasar yang tidak menentu dan tingginya volatilitas suku bunga menyebabkan pengasumsian suku bunga tetap dalam menentukan valuasi produk-produk finansial menjadi tidak lagi relevan. Oleh karena itu diperlukan suatu model yang dapat memprediksi pergerakan suku bunga yang akan datang. Namun, suku bunga di masa yang akan datang tidak bisa diramalkan secara realistis karena merupakan kejadian random. Asumsi bahwa perubahan suku bunga adalah kejadian random dengan dua kemungkinan hasil (naik dan turun) yang memiliki probabilitas tertentu menjadi landasan digunakannya model pohon binomial untuk memprediksi suku bunga dimasa mendatang. Pada penelitian ini, peneliti akan menggunakan pohon binomial untuk suku bunga stokastik model Cox, Ingersoll, dan Ross (CIR) untuk memprediksi nilai suku bunga dimasa datang, mengestimasi parameter suku bunga CIR dengan metode Conditional Least Square Estimation yang berdasar pada conditional mean function dan conditional variance function dan menerapkannya pada data real dengan penghitungan menggunakan software R. Kata Kunci : suku bunga stokastik, CIR, proses Ito, conditional least square estimation, conditional mean funtion dan conditional variance function