Judul: Prediksi Perpindahan Penggunaan Merek Simcard dengan Pendekatan Rantai Markov
Abstrak: Offering cheaper starter pack of simcard and cheaper tariff in GSM prepaid card constitute some strategies of telecommunication provider in costumer’s designation. However, there is a significant consequence caused by these strategies, i.e. costumers prefer to use cheaper GSM cards regardless to other factors. This condition will make customers easy to switch between GSM cards. This switching problem should be taken into consideration, if the telecommunication companies do not want to loose their costumers due to more expensive rates compared to other telecommunication companies. The aims of this research are to describe the brand switching of simcards by using Markov chain model and to analyze the characteristic of consumers of prepaid GSM cards. Cellular card that controls market can be determined from the most mobile card, which has the greatest probability of use. Meanwhile, from the transition probability point of view, cellular card that controls market is the card that has the greatest transition probability to itself rather than to the others.
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Judul: Analisis Faktor-Faktor yang Mempengaruhi Perpindahan Merek pada Pelanggan Kartu Prabayar GSM
Abstrak: Cellular industry of Indonesia has grown many folds in recent years. This situation has originated a hyper competition among major cellular service providers in Indonesia. In this competitive cellular market, customer switching is injurious for every telecommunication company. This study explore relationship between customer loyalty and variety seeking behavior on customer switching in cellular industry especially pre paid GSM customer. Customer loyalty influenced customer value, satisfaction, and switching barrier. Factor that influence variety seeking behavior are variety seeking need and characteristic of product category. This research was conducted in Jakarta, primary data was collected by a set of questionnaire and allocated to 230 prepaid GSM customer. Research methods used structural equation modeling (SEM) using AMOS version 18. Findings revealed that customer value and switching barrier have significant effect on customer loyalty; variety seeking need has significant positive effect on variety seeking behavior; customer loyalty has significant negative effect on brand switching; and variety seeking behavior has significant positive effect on brand switching.
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Judul: Karakteristik Anatomi Skelet Tubuh Buaya Senyulong (Tomistoma schlegelii)
Abstrak: Buaya senyulong (Tomistoma schlegelii) merupakan buaya besar yang rentan punah dan hanya dapat ditemukan di rawa dataran rendah, danau dan sungai di Sumatera bagian timur, Kalimantan dan Jawa Barat (Indonesia), Serawak, Semenanjung Malaysia (Malaysia) serta Brunei Darussalam. Tujuan dari penelitian ini adalah mempelajari karakteristik anatomi skelet tubuh buaya senyulong yang dikaitkan dengan fungsi dan perilakunya. Penelitian ini menggunakan satu set preparat skelet tubuh buaya senyulong. Parameter penelitian meliputi pengamatan bentuk bagian skelet yang khas, mengukur panjang dan lebar tulang, serta dibandingkan dengan skelet tubuh jenis buaya lain, biawak air (Varanus salvator) maupun literatur yang terkait dengan sistem skelet tubuh hewan. Karakteristik anatomi skelet tubuh buaya senyulong relatif mirip pada jenis buaya lain. Beberapa karakteristik yang ditemukan yaitu, proatlas pada os atlas, os axis hanya memiliki zygapophysis caudalis, bagian lateral dari ossa vertebrae cervicales yang dilengkapi dengan cervical ribs, memiliki jumlah costae sternalis yang banyak, rangkaian ossa gastralia pada abdomen, ossa vertebrae lumbales memiliki zygapophysis cranialis dengan sudut >90o dari sumbu tubuh. Selain itu, os vertebrae caudalis I memiliki caput cranial dan caudal, ossa vertebrae caudales memiliki processus transversus yang semakin memendek ke arah caudal. Di medioventral tulang ini ditemukan ossa chevron dengan hemal arch sampai menjelang akhir ossa vertebrae caudalis. Skelet tubuh buaya senyulong memiliki hubungan yang kokoh dan kompak untuk menunjang fleksibilitas tubuh untuk berjalan, berenang dan berburu mangsa
Keyword: anatomi, buaya senyulong, skelet tubuh