Forecasting Quarterly Brazilian GDP Growth Rate With Linear and NonLinear Diffusion Index Models

This paper uses linear and non-linear diffusion index models and combination of them to produce one-step-ahead forecast of quarterly Brazilian GDP growth rate. The non-linear diffusion index models are not only parsimonious ones, but they also purport to describe economic cycles through a Threshold diffusion index model and a Markov-Switching diffusion index model.Forecasting, Brazilian GDP, Diffusion Index, Threshold, Markov-Switching

Ultrasonographic Estimation of Fetal Weight – Residents Accuracy

The aim of this retrospective study was to evaluate the accuracy of gynecology and obstetrics residents when performing ultrasonographic estimation of fetal weight. The total of 400 ultrasonographic estimations of fetal weight and corresponding neonatal weight were collected and divided into 3 groups according to physicians’ experience (junior and senior residents, staff physicians). The accuracy of fetal weight estimation correlated positively with the level of physicians’ experience. The proportional difference between ultrasound estimation and actual birth weight varied from 8.45% to 6.88% (junior residents 8.45%, senior residents 6.95%, staff physicians 6.88%). The proportion of ultrasonograhic estimates that fell within 10% of birth weight varied from 59.09% to 79.21% (junior residents 59.09%, senior residents 78.44%, staff physicians 79.21%). Senior residents reach a highly acceptable accuracy in ultrasonographic estimation of fetal weight which is comparable to staff physicians

PENGARUH METODE DEMONSTRASI TERHADAP HASIL BELAJAR PEMBUATAN VIDEO TUTORIAL DESAIN KARTUN VEKTOR SECARA DARING PADA SISWA XII MULTIMEDIA 1 SMK NEGERI 1 JABON

Metode demonstrasi adalah sebuah cara menyampaikan suatu pembelajaran dengan meragakan baik mengunakan perantara media pembelajaran ataupun tidak sesuai dengan pokok bahasan atau materi yang disajikan dengan rapih..Tujuan dari penelitian ini meningkatkan hasil belajar siswa dan mengetahui metode yang tepat dalam meningkatkan hasil belajar seni digital atau digital art berbentuk design vector siswa kelas XII SMK NEGERI 1 JABON SIDOARJO ,Adapun metode yang digunakan pada penelitian ini adalah metode demonstasi.Penilitian ini mengunakan jenis penelitian kuantitatif deskriptif dengan pendekatan digital art, design Vector, dan hasil belajar siswa. Teknik pengumpulan data dalam penelitian ini ada test turtulis, penugasan, observasi, dan dokumentasi. Penelitian ini dilakukan sebanyak 2 tahap. Pertama menghitung prosentase hasil belajar kognitif siswa dengan rata-rata (56) dan tahap dua diperoleh rata-rata nilai (79). Dari perhitungan tersebut diperoleh rxy sebesar (0.49), ini menunjukan pergerakan menuju +1 sehingga dengan pedoman yang telah dikemukan dapat diyatakan bahwa korelasi X dan Y tergolong Meningkat secara signifikat. Simpulan dari hasil penelitian pengaruh penggunaan mtode demonstrasi terhadap hasil belajar design vector siswa kelas XII SMK Negeri 1 Jabon Sidoarjo efektif dan terbukti meningkat. Kata Kunci: Metode Demontrasi, Animasi, Kartun, 2 Dimens

Interaction objects in the MADE multimedia environment

In order to support flexible interaction in interactive multimedia systems, we have defined general interaction objects that allow dynamic and transparent coupling of user interaction to media objects and other types of objects. The interaction objects are programmable in that they may use scripting languages for defining their behavior. This mechanism can be used to glue existing application capabilities together to form new end-user functionality