Raden Arfan Rifqiawan, Raden Arfan
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MITIGASI BENCANA LONGSOR DI KAWASAN PERUMNAS BUKIT BERINGIN LESTARI, GONDORIYO, NGALIYAN, SEMARANG DENGAN MENGGUNAKAN VETIVER GRASS TECHNOLOGY Rifqiawan, Raden Arfan
Dimas: Jurnal Pemikiran Agama untuk Pemberdayaan Vol. 15 No. 1 Tahun 2015
Publisher : LP2M of Institute for Research and Community Services - UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/dms.2015.151.739

Abstract

This action research is realized by the landslide disaster mitigation activities in the area of Perumnas Bukit Beringin Lestari, Gondoriyo, Ngaliyan Semarang using Vetiver Grass Technology. Implementation of Vetiver Grass Technology carried out with the active participation of citizens. Residents work together to mitigate landslide in their own environment. There are two stages in this activity. The initial stage, the residents asked the Perumnas as the developer to carry out re-installation of gabions and gabion installation at the disaster site. This is done so that subsequent landslides do not occur again. It was followed up a month later by the Perumnas. The next stage is, people install Vetiver Grass Technology in the former disaster areas to rehabilitate the degraded land and protect embankments, gabion, and building houses.
Smart Repetition dan Brain Wave Technology dalam Pembuatan Audio Book Kosa Kata Bahasa Inggris Rifqiawan, Raden Arfan
Dimas: Jurnal Pemikiran Agama untuk Pemberdayaan Vol. 16 No. 2 Tahun 2016
Publisher : LP2M of Institute for Research and Community Services - UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/dms.2016.162.1093

Abstract

Research work, devotion lecturers are embodied with mentoring activity, making audiobook and a mastery vocabulary English often used with Smart Repetition and Brain Wave technology. Making audiobook with Smart Repetition and Brain wave technology done together the participants capital. Making audiobook it is not easy that calls for exercise and patience participants capital .But through frequent exercise , finally they can make audiobook according to what they want. Assistance mastery vocabulary English often used with Smart Repetition and Brain Wave technology do with some stage.An early stage done by building community using application Telegram.The next stage is for the delivery of material, training, and the interaction continuously between researchers and participants cooperate either directly or online until the participants cooperate graduated from college.
ANALISIS RASIONALITAS INVSETOR DALAM PEMILIHAN DAN PENENTUAN PORTOFOLIO OPTIMAL PADA SAHAM-SAHAM JAKARTA ISLAMIC INDEX Rifqiawan, Raden Arfan
Economica: Jurnal Ekonomi Islam Vol 2, No 2 (2012)
Publisher : Fakultas Ekonomi dan Bisnis Islam UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/economica.2012.2.2.826

Abstract

The purpose of this study is to determine that  wether investor rationality exist in undergoing the stock choice in  Jakarta Islamic Index at Indonesia Stock Exchange. Population to be chosen in the study is 44 firms listed on JII. However, the sample included are only 19 firms that present 30 times consecutively of simultan monitoring on JII. From 19 firms  after analyzed with single index model  found 11 has firms has  ERB > Ci*, that mean if investor invests  in 11 stocks will  get return higher with lower risk in comparison with investment in risk free  asset. Data to be used in the study is the secondary one, which is collected from Indonesia Stock Exchange Monthly Statistic and risk free rate report from Central Bank of Indonesia.Result to be obtained from the study demonstrates on empirical evidence of investor rationally in choosing the stock on JII. The value is  showed averagely stocks trade  volume that has  ERB > Ci* higher is compared averagely stocks trade  volume that has  ERB< Ci*.
PENGARUH PROFITABILITAS DAN KAPITALISASI PASAR TERHADAP NILAI EMITEN JAKARTA ISLAMIC INDEX Rifqiawan, Raden Arfan
Economica: Jurnal Ekonomi Islam Vol 6, No 2 (2015)
Publisher : Fakultas Ekonomi dan Bisnis Islam UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/economica.2015.6.2.791

Abstract

Tulisan ini meneliti pengaruh antara Return on Assets (ROA) sebagai proksi dari profitabilitas dan kapitalisasi pasar terhadap Tobins Q sebagai proksi dari nilai emiten. Tujuan penelitian adalah untuk menemukan bukti empiris tentang pengaruh profitabilitas  dan kapitalisasi pasar terhadap nilai emiten. Sampel dalam penelitian ini adalah emiten Jakarta Islamic Index (JII)  yang terdaftar dalam  Indonesia Stock Exchange (IDX)  dalam  rentang tahun 2012-2014. Sampel penelitian adalah sebanyak 21 perusahaan dengan 63 kali pengamatan. Analisis data menggunakan analisis regresi linear berganda.  Hasil penelitian dengan analisis regresi linear berganda menunjukkan bahwa profitabilitas berpengaruh signifikan terhadap nilai emiten. Hal ini ditunjukkan dengan taraf signifikansi dari hasil uji statistik t sebesar 0,000 (<0,05). Sedangkan kapitalisasi pasar tidak berpengaruh secara signifikan terhadap nilai emiten yang ditunjukkan dengan taraf signifikansi sebesar 0,195 (>0,05). Namun secara simultan profitabilitas dan kapitalisasi pasar berpengaruh signifikan terhadap nilai emiten. Hal ini diketahui dari hasil uji statistik F, taraf signifikansinya sebesar 0,000 (<0,05). Nilai Koefisien Determinasi sebesar 0,653  menunjukkan bahwa model regresinya sudah baik karena kemampuan variabel bebas dalam menjelaskan variabel terikat  sebesar 65,3%.  Sisanya sebesar 34,7% dijelaskan oleh variabel di luar penelitian.
PEMBUATAN FLASH CARD DIGITAL UNTUK PEMBELAJARAN 80% KOSA KATA AL-QUR’AN Rifqiawan, Raden Arfan
At-Taqaddum Volume 8, Nomor 1, Juli 2016
Publisher : Quality Assurance Institute (LPM) State Islamic University Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1044.856 KB) | DOI: 10.21580/at.v8i1.1162

Abstract

This study is realized in the manufacture of digital flashcards vocabulary 80% of the Qur?an. Begins with a study of journals, books, and articles on the internet about the vocabulary of the Qur?an. Then proceed with the creation of a digital database. This database is the source of 80% of the vocabulary of the Qur?an booklet which is the result of research by Dr. Abdul Aziz Abdul Raheem from India. Once the database is materialized and the result is save as in the format tab-separated.txt with UFT-8 encoding, then followed with a database that has finished importing into Anymemo android application. The final step is to test whether a digital flashcard can run either smartphone or tablet and share the application to the public.