Judul: Pengaruh Pengalaman Ketidakpuasan, Culture Value dan Nilai Kerugian terhadap Niat Komplain pada Barang Elektronik
Abstrak: Ketidakpuasan pembelian barang elektronik dapat menimbulkan adanya niat komplain, selain ketidakpuasan, culture value juga memengaruhi seseorang berniat untuk melakukan komplain. culture value dalam penelitian ini meliputi individualisme dan kolektivisme. Penelitian ini bertujuan untuk menganalisis pengaruh pengalaman ketidakpuasan, culture value, serta nilai kerugian terhadap niat komplain pada barang elektronik. Desain penelitian ini menggunakan cross sectional study. Pemilihan lokasi penelitian dilakukan secara purposive yaitu di Kelurahan Paledang RW 04, Kecamatan Bogor Tengah, Kota Bogor. Pengambilan sampel dilakukan secara purposive yang melibatkan 100 orang, yaitu suami atau istri yang mengambil keputusan dalam membeli barang elektronik. Data diperoleh melalui wawancara dengan menggunakan kuesioner. Hasil penelitian menunjukkan bahwa pengalaman ketidakpuasan, individualisme, dan usia memiliki pengaruh terhadap niat komplain, sedangkan faktor-faktor yang tidak berpengaruh terhadap niat komplain antara lain kolektivisme, nilai kerugian, dan pendapatan keluarga…
Keyword: Culture Value, Individualisme, Kolektivisme, Niat Komplain, Nilai Kerugian, Pengalaman Ketidakpuasan, Human ecology, Cross sectional study, Electronic product, Complain intention, Families income

Judul: Pengaruh keterlibatan penggunaan produk, pengalaman ketidakpuasan dan akses informasi terhadap niat komplain  pengguna listrik
Abstrak: Adanya ketidakpuasan terhadap pelayanan listrik dapat memunculkan niat komplain dalam diri konsumen. Tujuan penelitian ini adalah untuk mengetahui pengaruh keterlibatan penggunaan produk, pengalaman ketidakpuasan dan akses informasi terhadap niat komplain terkait penggunaan listrik. Desain penelitian ini adalah cross sectional study dengan lokasi penelitian di Kelurahan Ciparigi, Kecamatan Bogor Utara. Contoh dalam penelitian ini sebanyak 120 orang yang terdiri atas suami atau istri yang mengambil keputusan untuk melakukan komplain ketika ada permasalahan terkait listrik dan sering berinteraksi dengan karyawan PLN. Pengambilan data dilakukan dengan wawancara menggunakan alat bantu kuesioner. Hasil penelitian menunjukkan bahwa faktor yang memengaruhi niat komplain adalah keterlibatan penggunaan produk, jumlah sumber informasi untuk komplain pada PLN dan status pekerjaan. Faktor yang tidak memengaruhi niat komplain adalah usia, lama pendidikan, pendapatan keluarga, pengalaman ketidakpuasan dan jumlah sumber informasi hak dan kewajiban konsumen., Dissatisfaction toward electrical service will trigger complain intention within a consumer. This research was aimed to analyze the effects of involvement product usage, dissatisfied experience and information accesess on complaining intention. This study used cross sectional design that held in Sub-district Ciparigi, District North Bogor. The samples in this research were 120 persons whether husband or wife who takes decision on complaining related to electricity and the people who are frequently interactive with PLN officer. The data was obtained by using questionaired interview. The result showed that the involvement product usage, the number of information access related to complaint and occupational status were positively significant influence on complaint intention. There were several factors did not influence on complaint intention, such as age, education length, family income, dissatisfied experiences and number of information resources related to consumer right and obligation.
Keyword: akses informasi, hak dan kewajiban konsumen, keterlibatan penggunaan produk, niat komplain, pengalaman ketidakpuasan

Judul: Transformation of jatropha seeds (Jatropha curcas L.)  into biodiesel by in situ transesterification
Abstrak: Biodiesel is defined as mono-alkyl esters from transesterification reaction of triglycerides with alkyl alcohol. In situ transesterification is a method to produce biodiesel from oil sources of material by eliminating process steps of oil extraction and refining. The purpose of this research is to study the transformation process of Jatropha seeds into biodiesel by in situ transesterification on the 10 liters scale by studying the influence of reaction time, stirring speed and ratio methanol/hexane/material on the yield and quality of biodiesel. In situ transesterification of Jatropha seeds was carried out under the following process condition: the moisture content of Jatropha seeds were less than 2%, the particles size were ± 20 mesh and KOH concentration was 0.075 mol/L methanol. Operating condition of in situ transesterification was varied at 4 and 6 hours reaction time, 200 and 600 rpm stirring speed and ratio methanol/hexane/material (v/v/w) were 3:3:1, 4:2:1 and 5:1:1. Analysis of variance showed that reaction time, stirring speed and ratio methanol/hexane/material did not significantly affected the yield, acid value, saponification value, ester value, viscosity and ash content of biodiesel. The biodiesel yield was produced between 82.54-87.57%. The best biodiesel yield on all of treatments was 87.57% with condition treatment were reaction time of 6 hours, stirring speed 600 rpm and ratio methanol/hexane/material (v/v/w) of 4:2:1. Acid value, saponification value and ester value of biodiesel were 0.20-0.26 mg KOH/g, 185.49-194.30 mg KOH/g and 185.29-194.10 mg KOH/g respectively. Viscosity of biodiesel was 3.49-6.36 cSt. The ash content of biodiesel was 0%, but the condition treatment, were reaction time of 4 hours, stirring speed of 600 rpm and ratio methanol/hexane/material (v/v/w) of 5:1:1, had ash content of 0.007%. Jatropha cakes had total volatile matter content 1.80-3.64% and extracted material content 3.94-11.42%.
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