Edwin Rizal

A Comparative Study on causes of corrosion of steel reinforcement in RC structures at Bangalore, India and Kigali, Rwanda

Premature failure of reinforced concrete structures occurs primarily due to early corrosion of steel reinforcement. This paper intends to uplift the awareness of people about the role of structure maintenance to prevent or control corrosion in steel reinforced concrete structures. Some data collected using a designed questionnaire were distributed in Bangalore, India and Kigali, Rwanda, about corrosion of steel reinforcement which actually motivated this research. The research finds that without corrosion in steel reinforced concrete structures is just a matter of time. However corrosion map for Kigali is not available. Hence the survey has been conducted in Rwanda. Based on survey corrosion map will be prepared so that vulnerable areas for corrosion can be identified. This map will enable for protective design of structures against corrosion. The new steel RC structures corrosion monitoring systems should be incorporated for future less costly, timely maintenance for their reliable service life.

Forecasting Infant Mortality Rate for China: A Comparison Between α-Sutte Indicator, ARIMA, and Holt-Winters

The purpose of this study is to apply the α-Sutte Indicator in forecasting data. α-Sutte Indicator is a new forecasting method that was developed in 2017 by Ansari Saleh Ahmar. To see the accuracy of these methods, the forecasting results of the α-Sutte Indicator will be forecasting methods compared to other items, namely: ARIMA and HoltWinters. Based on the results of forecasting, it is found that α-Sutte Indicator has MSE and MAPE values that are lower than other methods (ARIMA and HoltWinters). This is supported by MSE data from α-Sutte Indicator smaller than ARIMA(2,2,2) and HoltWinters i.e. 0.03; 3.06; and 3.15.

Therapeutic Communication Process in Traditional Medicine “Broken Bone Massage”: a Case Study in Citapen, West Java, Indonesia

Traditional medicine in Indonesia, especially broken bone massage, is usually done by experienced personnel or therapist whose got skills from their family or derived down from generation to generation since Dutch Colonial era. This study aims to find out about therapeutic communication process in traditional medicine, in this case, is broken bone massage. Therapeutic communication, in this case, is interpersonal communication with points of mutual understanding between therapist and patients. Fundamental issues and communication is the mutual need between therapist and patients so that it can be categorized into personal communication between the therapist and patients, therapist help and patients receive the help. The research method used is qualitative research. Qualitative research is a study aimed at understanding social reality, by seeing the world from what it is, not the world that should be, then a qualitative researcher must be people who have an open-minded nature. The informants in this study are a therapist and patients with the broken bone problem. This research data was obtained through observation, interview, and literature study. This paper discusses therapeutic communication process in traditional medicine between broken bone massage’s therapist and patients. The intention of this research is evidence how the process of therapeutic communication in traditional medicine gains patients trust and creating a sense of comfort while doing the treatment.

STUDI TENTANG ASPEK POLITIK DAN EKONOMI PADA INDUSTRI PERBUKUAN DI JAWA BARAT (JABAR)

Penelitian ini bertujuan untuk mengetahui aspek politik dan ekonomi pada industri perbukuan di Jawa Barat yang dikaitkan dengan kondisi perbukuan, segmen pasar (potential book market), kecenderungan pembajakan buku serta kendala-kendala yang dihadapi para penerbit buku di Jawa Barat. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan pendekatan kualitatif. Sedangkan yang menjadi populasinya adalah para penerbit buku anggota IKAPI wilayah Jawa Barat. Berdasarkan hasil penelitian dapat diketahui bahwa kondisi perbukuan yang ada di Jawa Barat ditinjau dari aspek politik telah mengalami banyak perubahan antara lain dengan adanya kebijakan pemerintah dalam penerbitan buku-buku paket yang tidak lagi menggunakan penerbit pemerintah seperti balai pustaka sebagai penerbit tunggal, namun juga telah melibatkan beberapa penerbit swasta melalui seleksi yang terbuka. Ditinjau dari aspek ekonominya kondisi perbukuan di Jawa Barat yang merupakan lingkaran kedua pada kelompok penerbitan buku di Indoensia, mempunyai interaksi yang cukup tinggi baik ditinjau dari interaksi bisnis, interaksi editorial maupun dari aspek dalam hal pemasaran buku. Segmen pasarnya (potential book market) dapat dibagi menjadi empat kelompok yakni kelompok masyarakat pelajar mulai SD sampai SLTA; kelompok masyarakat perguruan tinggi; kelompok masyarakat umum serta kelompok masyarakat keagamaan. Kecenderungan pembajakan buku di Jawa Barat masih tetap terjadi. Hal ini antara lain disebabkan oleh faktor ketersediaan (availability), terutama untuk buku-buku yang diterbitkan oleh penerbit buku di luar wilayah Jawa Barat. Kendala-kedala yang dihadapi para penerbit buku di Jawa Barat dalam menjalankan usahanya ialah dikarenakan faktor permodalan, serta lemahnya sumber daya. Kata kunci : Buku, Penerbitan