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 pengetahuan dan kesadaran terhadap niat Komplain pada barang dan jasa
Abstrak: Niat komplain merupakan tindakan berupa keluhan yang akan dilakukan oleh konsumen ketika barang dan jasa yang digunakan tidak sesuai dengan harapan. Keluhan yang akan disampaikan oleh konsumen sangat ditentukan oleh pengetahuan dan kesadaran akan hak dan kewajiban konsumen yang dimiliki. Tujuan penelitian ini adalah menganalisis pengaruh pengetahuan dan kesadaran terhadap niat komplain pada barang dan jasa. Disain penelitian ini menggunakan cross sectional study dengan metode survei yang dilakukan di Kelurahan Paledang, Kecamatan Bogor Tengah, Kota Bogor. Penelitian ini melibatkan 90 contoh, yang dipilih dengan menggunakan teknik purposif. Hasil penelitian menunjukkan hanya tiga jenis barang yang bermasalah setelah dibeli yaitu, gadget, fashion (pakaian, kosmetik, sepatu atau sandal), dan kendaran (mobil, motor, dan sepeda) memiliki hubungan yang signifikan untuk responden berniat melakukan komplain. Tingkat pengetahuan objektif dan kesadaran hak dan kewajiban tergolong tinggi sedangkan pengetahuan objektif tentang komplain, pengetahuan subjektif hak dan kewajiban serta komplain tergolong sedang. Hasil penelitian menunjukkan pengetahuan tidak memengaruhi niat komplain, tetapi kesadaran memengaruhi niat komplain. Selain itu, faktor yang memengaruhi niat komplain pada barang dan jasa adalah akses infomasi, dan ketidakpuasan konsumen., Complaint intentions is the action in the form of complaint that will be carried out by the consumer when the goods and services that are used are not in line with expectations. Complaints that will be submitted by the consumers is determined by the knowledge and awareness of the rights and obligations of consumers owned. The purpose of this research was to analyze the influence of knowledge and awareness toward complaint intentions on goods and services. The design of the research was used a cross-sectional study with a survey methods on Paledang Village, District of Central Bogor, Bogor. The research involved 90 samples, which were selected by using purposive technique. The results showed that only three types of problemtic goods after purchasing (gadgets, fashion (clothes, cosmetics, shoes or sandals), and the vehicle) have a significant relationship with complaint intentions of respondent. The level of objective knowledge and awareness of rights and obligations are classified high, whereas the objective knowledge about the complaints, subjective knowledge about the rights, obligations and complaints are classified moderate. The results showed that knowledge didn’t affect the intention of complain, but awareness affected the intention of complain. Moreover, factors that influenced the complaint intentions on goods and services were the amount of information access, and consumer’s dissatisfaction.
Keyword: hak dan kewajiban konsumen, kesadaran, niat komplain, dan pengetahuan

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%.
Keyword: