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: Analisis Faktor-Faktor yang Mempengaruhi Perpindahan Merek pada Pelanggan Kartu Prabayar GSM
Abstrak: Industri telekomunikasi seluler mempunyai peran yang besar dalam kehidupan masyarakat maupun perekonomian nasional. Jumlah pelanggan telekomunikasi seluler di Indonesia sampai tahun 2009 sudah mencapai 160 juta pelanggan. Bisnis selular mengalami perkembangan yang sangat pesat sejak munculnya teknologi GSM/digital (global system for mobile communication) yang mengembangkan kartu pra bayar (prepaid) dalam bisnis jaringan telepon selular. Penyelenggara jasa telekomunikasi seluler berbasis teknologi GSM sampai tahun 2010 ada lima yaitu PT. Telkomsel, PT. Indosat, PT. Excelkomindo, PT. Natrindo Telepon Seluler, dan PT. Hutchinson CP Telecommunication. Dengan demikian persaingan dalam industri jasa telekomunikasi khususnya di Indonesia semakin ketat, khususnya telepon seluler GSM. Hal ini menyebabkan konsumen mempunyai beberapa pilihan sehingga besar kemungkinan konsumen akan berpindah ke penyedia jasa yang satu ke penyedia jasa yang lain. Tingkat perpindahan pelanggan di Indonesia dinilai masih sangat tinggi dibandingkan dengan di luar negeri sehingga hal ini menyulitkan operator telekomunikasi. Tingkat perpindahan di luar negeri kini hanya 2%-3%, sedangkan di Indonesia mencapai 13% per bulan (Pamenan, 2010). Perpindahan merek terjadi karena penurunan loyalitas terhadap merek dan mulai terjadinya penerimaan merek lain, yang pada akhirnya menyebabkan konsumen mempunyai keinginan untuk mencoba merek yang lain (Howell, 2004). Zikiene et. al. (2010) faktor penghambat perpindahan pelanggan dapat adalah loyalitas. Feinberg, et. al. (1992), mengidentifikasi perilaku mencari variasi sebagai faktor yang berpengaruh terhadap perpindahan merek. Loyalitas pelanggan berkaitan dengan nilai pelanggan (Neal, 1998), kepuasan serta hambatan pindah (Ranaweera&Prabhu, 2003). Perilaku mencari variasi muncul karena adanya kebutuhan akan variasi dan persepsi karakteristik produk (Van Trijp, et. al., 1996). Hipotesis yang diajukan dalam penelitian ini adalah sebagai berikut :...dst
Keyword: pelanggan prabayar GSM, perpindahan merek, loyalitas konsumen, perilaku mencari variasi

Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
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