Judul: Analisis Orientasi Fashion Wanita Di Jabodetabek Menggunakan Korespondensi Berganda
Abstrak: Wanita memiliki lima jenis orientasi fashion, yaitu indifferent, communication oriented, value oriented, achievement oriented, dan flasher. Orientasi fashion ini dipengaruhi oleh perilaku belanja dan karakteristik wanita. Identifikasi hubungan antara ketiga aspek tersebut dapat dilakukan dengan analisis korespondensi berganda. Hasil identifikasi ini dapat dimanfaatkan untuk menentukan strategi pembuatan produk dan strategi pemasaran yang sesuai. Penelitian ini bertujuan mengidentifikasi hubungan antara orientasi fashion, perilaku belanja, dan karakteristik wanita di Jabodetabek. Peubah-peubah yang berasosiasi dengan orientasi fashion adalah frekuensi belanja pakaian dan tas, daya beli pakaian dan tas, pendidikan terakhir, pendapatan dan konsumsi pribadi, dan frekuensi akses internet. Hasil penelitian menunjukkan bahwa segmen value oriented dan achievement oriented memiliki daya beli yang tinggi, namun frekuensi belanja segmen achievement oriented tergolong rendah dibanding segmen value oriented yang memiliki frekuensi belanja tinggi. Segmen indifferent, flasher, dan communication oriented memiliki daya beli yang rendah walaupun segmen communication oriented memiliki frekuensi belanja tinggi, sedangkan segmen indifferent dan flasher memiliki frekuensi belanja rendah.
Keyword: karakteristik wanita, korespondensi berganda, orientasi fashion, perilaku belanja

Judul: Penerapan Metode CHAID dalam Mengetahui Faktor-Faktor Berpengaruh pada Orientasi  Fesyen Mahasiswa Perempuan (Studi Kasus: Mahasiswi S1 IPB Angkatan 54–57)
Abstrak: Fesyen atau mode merupakan suatu corak yang secara populer diterima oleh sekelompok orang dalam waktu yang cukup lama. Sebagai salah satu subsektor Ekonomi Kreatif Indonesia, fesyen berkontribusi besar bagi perekonomian Indonesia karena sumbangsihnya terhadap pendapatan nasional dan juga nilai ekspor pada tahun 2016. Adanya pandemi yang masuk ke Indonesia sejak Maret 2020 memberi dampak besar pada sektor ekonomi secara global, tak terkecuali industri fesyen. Penelitian ini bertujuan mengidentifikasi perilaku belanja dan karakteristik yang berpengaruh terhadap orientasi fesyen mahasiswi S1 IPB pada awal masa pandemi. Data yang digunakan adalah data primer hasil survei terhadap mahasiswi aktif program sarjana IPB angkatan 54–57 dengan metode penarikan contoh non-probability sampling, yaitu purposive sampling dan voluntary sampling. Data pada peubah orientasi fesyen memiliki proporsi kelas yang tidak seimbang sehingga penelitian ini melakukan penanganan data tidak seimbang berupa metode oversampling. Hasil evaluasi model klasifikasi menunjukkan tingkat akurasi sebesar 51.4% dengan nilai sensitivitas sebesar 50.6% dan error rate sebesar 24.3%. Faktor perilaku belanja dan karakteristik yang berpengaruh terhadap orientasi fesyen sebanyak delapan dari 12 peubah, dengan tiga di antaranya adalah frekuensi belanja pakaian, daya beli pakaian, dan asal daerah., Fashion is a pattern that is popularly accepted by a group of people for quite a long time. As one of the sub-sectors of Ekonomi Kreatif Indonesia, fashion made a major contribution to the Indonesian economy because of its contribution to national income and also the value of exports in 2016. The pandemic that has entered Indonesia since March 2020 has had a major impact on the global economic sector, including the fashion industry. This study aims to identify shopping behavior and characteristics that influence the fashion orientation of IPB undergraduate female students at the start of the pandemic. The data used is primary data from a survey of active female students of the IPB undergraduate program batches 54–57 using the non-probability sampling method, namely purposive sampling and voluntary sampling. The data on the fashion orientation variable has unbalanced class proportions, so this study handles unbalanced data in the form of the oversampling method. The evaluation results of the classification model show an accuracy rate of 51.4% with a sensitivity value of 50.6% and an error rate of 24.3%. Eight of twelve variables of shopping behavior and characteristics influence fashion orientation, with three of them being the frequency of shopping for clothes, the purchasing power of clothes, and the region of origin.
Keyword: CHAID, faktor berpengaruh, orientasi fesyen, oversampling, pandemi

Judul: Pemurnian dan karakterisasi protein inhibitor RNA helikase virus hepatitis C
Abstrak: Hepatitis C virus (HCV) infection is the second most common chronic viral infection in the world with global prevalence. This infection is contribution to chronic hepatitis and liver cirrhosis, often leading to hepatocellular carcinoma. There is no effective drug and vaccine available against HCV. The current standard treatment, a combination of pegylated interferon-α with ribavirin, is limited by its suboptimal response rate in a significant patient population, side effects, and affordability. Therefore, development of effective drug is needed. One approach to find out the candidate of antiviral drug is to discover the inhibitor of enzyme that essential for virus replication, such as RNA helicase. Streptomyces chartreusis 5-095 produce the inhibitor of HCV RNA helicase. The aim of this study was to purify the protein inhibitor which has inhibition activity against ATPase activity of RNA helicase HCV from S. chartreusis 5-095. The supernatant of culture S. chartreusis 5-095 exhibited high inhibiton activity against ATPase activity of RNA helicase HCV (approximately 72%) at 10 days of incubation. The extracellular protein inhibitor was partially purified by procedures of precipitation with ammonium sulfate to 65% saturation and gel filtration (Sephadex G50) using methanol water solution (4:6) as an eluen. The purity of protein inhibitor was monitored by SDS PAGE. The protein inhibitor showed a relative molecular mass were estimated to be 14 kDa and increased the purity 23,08 fold than those of the crude protein. The specific activity and IC50 after purification were 13,1338 U/mg and 0,0767 mg/mL, respectively. The activity of purified protein inhibitor showed its stability over pH range from 5-8 and optimum at pH 7,4. The inhibition activity showed its stability up to 70% at temperature 100 oC. The purified protein inhibitor relatively stable its activity at storage in the range of -20 oC to room temperature for 35 days.
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