MEDIA PENGENALAN DAN SIMULASI ALAT MUSIK ANGKLUNG BERBASIS MULTIMEDIA

Angklung merupakan alat musik tradisional asli milik bangsa Indonesia yang harus selalu dilestarikan. Saat ini angklung mulai diminati oleh masyarakat Kota Yogyakarta, khususnya dari kalangan dewasa. Namun pada kenyataannya tidak semua masyarakat memiliki kesempatan belajar dan bermain angklung karena keterbatasan alat dan biaya yang dimiliki. Sehingga masyarakat harus bergabung dengan sanggar ataupun komunitas angklung yang telah didirikan. Penelitian ini bertujuan untuk membangun aplikasi pengenalan dan simulasi alat musik angklung berbasis multimedia dengan tambahan animasi yang diperlukan. Alat musik angklung yang menjadi fokus penelitian ini adalah angklung Padaeng atau angklung modern dengan jenis melodi. Aplikasi ini dibangun menggunakan Adobe Flash CS6 dan beberapa software pendukung. Dalam pengumpulan data terkait, penelitian menggunakan metode studi pustaka, eksplorasi internet, dan observasi. Hasil dari penelitian ini adalah sebuah media pengenalan dan simulasi alat musik angklung yang siap digunakan oleh masyarakat kapan saja dan dimana saja dengan menggunakan perangkat komputer ataupun laptop. Kelebihan yang dimiliki media ini, diantaranya menggunakan tangga nada sebanyak 3 oktaf, adanya fasilitas transpose nada, serta mampu melakukan perekaman saat permainan sedang berlangsung

Dairy foods, calcium, and risk of breast cancer overall and for subtypes defined by estrogen receptor status: a pooled analysis of 21 cohort studies

Background: Epidemiologic studies examining the relations between dairy product and calcium intakes and breast cancer have been inconclusive, especially for tumor subtypes. Objective: To evaluate the associations between intakes of specific dairy products and calcium and risk of breast cancer overall and for subtypes defined by estrogen receptor (ER) status. Method: We pooled the individual-level data of over 1 million women who were followed for a maximum of 8-20 years across studies. Associations were evaluated for dairy product and calcium intakes and risk of incident invasive breast cancer overall (n = 37,861 cases) and by subtypes defined by ER status. Study-specific multivariable hazard ratios (HRs) were estimated and then combined using random-effects models. Results: Overall, no clear association was observed between the consumption of specific dairy foods, dietary (from foods only) calcium, and total (from foods and supplements) calcium, and risk of overall breast cancer. Although each dairy product showed a null or very weak inverse association with risk of overall breast cancer (P, test for trend >0.05 for all), differences by ER status were suggested for yogurt and cottage/ricotta cheese with associations observed for ER-negative tumors only (pooled HR = 0.90, 95% CI: 0.83, 0.98 comparing >= 60 g/d with = 25 g/d with Conclusion: Our study shows that adult dairy or calcium consumption is unlikely to associate with a higher risk of breast cancer and that higher yogurt and cottage/ricotta cheese intakes were inversely associated with the risk of ER-negative breast cancer, a less hormonally dependent subtype with poor prognosis. Future studies on fermented dairy products, earlier life exposures, ER-negative breast cancer, and different racial/ethnic populations may further elucidate the relation

The exposure of the hybrid detector of the Pierre Auger Observatory

The Pierre Auger Observatory is a detector for ultra-high energy cosmic rays. It consists of a surface array to measure secondary particles at ground level and a fluorescence detector to measure the development of air showers in the atmosphere above the array. The "hybrid" detection mode combines the information from the two subsystems. We describe the determination of the hybrid exposure for events observed by the fluorescence telescopes in coincidence with at least one water-Cherenkov detector of the surface array. A detailed knowledge of the time dependence of the detection operations is crucial for an accurate evaluation of the exposure. We discuss the relevance of monitoring data collected during operations, such as the status of the fluorescence detector, background light and atmospheric conditions, that are used in both simulation and reconstruction.Comment: Paper accepted by Astroparticle Physic

A precise measurement of the magnetic field in the corona of the black hole binary V404 Cygni

Observations of binary stars containing an accreting black hole or neutron star often show x-ray emission extending to high energies (>10 kilo­–electron volts), which is ascribed to an accretion disk corona of energetic particles akin to those seen in the solar corona. Despite their ubiquity, the physical conditions in accretion disk coronae remain poorly constrained. Using simultaneous infrared, optical, x-ray, and radio observations of the Galactic black hole system V404 Cygni, showing a rapid synchrotron cooling event in its 2015 outburst, we present a precise 461 ± 12 gauss magnetic field measurement in the corona. This measurement is substantially lower than previous estimates for such systems, providing constraints on physical models of accretion physics in black hole and neutron star binary systems. This article has a correction. Please see: http://science.sciencemag.org/content/360/6386/eaat927