Judul: Pengaruh Karakteristik Sosio-Demografi, Gaya Hidup dan Motivasi terhadap Keberdayaan Konsumen di Bidang Perumahan.
Abstrak: Konsumen saat ini berada dalam pasar yang semakin kompleks dan dihadapkan pada jumlah informasi yang semakin banyak dengan pilihan produk dan jasa yang semakin beragam. Konsumen lebih mudah terpapar pada penipuan sehingga membutuhkan keahlian dan pengetahuan yang lebih dibandingkan dengan sebelumnya. Tujuan penelitian ini adalah menganalisis pengaruh karakteristik sosio-demografi, gaya hidup, dan motivasi terhadap keberdayaan konsumen di bidang perumahan. Penelitian ini menggunakan desain cross sectional study. Analisis data menggunakan analisis inferensia dan deskriptif. Responden dalam penelitian ini adalah orang yang melakukan pembelian rumah secara langsung ke pemasaran sebanyak 70 responden. Hasil penelitian menunjukkan semakin tua responden, skor indeks keberdayaan konsumen semakin tinggi. Semakin tinggi pendapatan, skor indeks keberdayaan konsumen semakin tinggi. Jika responden tidak memiliki pekerjaan maka indeks keberdayaan konsumen semakin tinggi, serta jika responden memiliki kebutuhan aktualisasi diri, maka indeks keberdayaan konsumen semakin tinggi.
Keyword: Gaya hidup, keberdayaan konsumen, motivas, perumahan, VVALS 2

Judul: Pengaruh Karakteristik Sosial, Demografi dan Ekonomi serta Gaya Hidup terhadap Keberdayaan Konsumen di Bidang Telekomunikasi.
Abstrak: Perubahan lingkungan global dan perkembangan teknologi telekomunikasi yang berlangsung sangat cepat mendorong terjadinya perubahan mendasar, melahirkan telekomunikasi yang baru, dan perubahan cara pandang dalam penyelenggaraan telekomunikasi. Hal tersebut dapat mengakibatkan konsumen lebih mudah terkena penipuan. Supaya konsumen terhindar dari kerugian, konsumen membutuhkan keahlian dan pengetahuan yang lebih dibandingkan dengan sebelumnya. Penelitian ini bertujuan menganalisis pengaruh karakteristik sosial, demografi dan ekonomi serta gaya hidup terhadap keberdayaan konsumen di bidang telekomunikasi. Penelitian ini menggunakan desain cross sectional study dengan metode pengumpulan data adalah secara online. Contoh pada penelitian ini yaitu konsumen yang menggunakan jasa telekomunikasi (modem dan provider telepon seluler yang digunakan untuk mengakses internet, SMS (Short Message Service) dan telepon). Data dianalisis secara deskriptif dan inferensia. Analisis deskriptif digunakan untuk mengidentifikasi karakteristik sosial, karakteristik demografi, karakteristik ekonomi, gaya hidup dan indeks keberdayaan konsumen. Analisis inferensia digunakan untuk analisis kluster dan regresi logistik. Hasil penelitian menunjukkan bahwa konsumen yang paling berdaya adalah perempuan dewasa awal (17-40 tahun), pendidikan tinggi, dan pendapatan lebih dari Rp 1.500.000 per bulan. Gaya hidup fullfilleds berpengaruh negatif signifikan terhadap keberdayaan konsumen di bidang telekomunikasi.
Keyword: keberdayaan konsumen, telekomunikasi, gaya hidup, VALS2

Judul: Extracellular Expression of thermostable Geobacillus stearothermophilus T1.2RQ Lipase for Biodiesel Production
Abstrak: The extracellular expression of enzymes in an excellent secretion host such as Bacillus subtilis is a useful strategy for making enzymes of industrial significance more affordable by lowering the cost of its downstream processing. Lipases are a category of hydrolases that catalyze the hydrolysis of triglycerides to glycerol and free fatty acids. Also, lipases catalyze the hydrolysis and transesterification of other esters as well as the synthesis of esters. They can perform very specific biotransformation reactions and are widely used in food, organic synthesis, detergents, cosmetic, and pharmaceutical industries. Geobacillus stearothermophilus T1.2RQ lipase is an industrially-desired thermostable lipolytic enzyme with an excellent hydrolytic and transesterification activity. This study aimed to express T1.2RQ lipase, in B. subtilis WB800 and ensure its secretion into the extracellular medium. Three signal peptides (AmyQ, Epr, LipA) and two promoters (Pgrac01 and Pgrac100) were used in the secretory-expression of T1.2RQ lipase, based on five constructed expression vectors constructed by restriction cloning and PCR mutagenesis. Sangers sequencing was used to verify constructs to ensure they are in the correct reading frame. Recombinants vectors, pHT43 (plasmid control), pHT43-T1.2RQ, pHT43- T1.2RQ_AmyQ, pHT43-T1.2RQ_Epr, and pHT43-T1.2RQ_LipA, were transformed by electroporation into Bacillus subtilis WB800. The electroporation was successful with the optimum condition of 2500V, 200 ohms, 25µF, and 5milliseconds. Recombinant B. subtilis pHT43 (negative control) and pHT43-T1.2RQlip + signal peptides were streaked on the lipidic agar, LA+TBN. All four recombinants, including the negative control (B. subtilis WB800-pHT43), produced clear zones on the TBN agar plate after overnight incubation (fig 2), indicating the presence of a lipolytic enzyme in all of the recombinant B. subtilis cells. pHT43-T1.2RQlip + signal peptides (AmyQ, Epr, and LipA) have clear zones with significantly higher diameters than B. subtilis WB800-pHT43 (negative control). This phenomenon suggests that the recombinant thermostable lipase T1.2RQ introduced into these cells was successfully expressed, thereby increasing the lipolytic capability of its host cells T1.2RQ lipase was expressed in 50ml terrific broth medium (TB) and the expression induced with 1mM IPTG. Lipase activity assay using p-nitrophenyl esters showed that all three signal peptides directed the secretion of T1.2RQ lipase into the extracellular medium. Signal peptide, LipA, resulted in the highest extracellular activity of 5.6 U/mL, which corresponds to a 6-fold increase over the parent B. subtilis WB800 strain. Meanwhile, signal peptides, AmyQ and Epr produced 4.2 U/mL and 3.4 U/mL activity respectively. SDS-Zymogram analysis confirmed that T1.2RQ lipase was correctly processed and secreted in its original size of 44 kDa. An attempt to further increase lipase expression level by promoter optimization showed that, contrary to expectation, promoter Pgrac100 exhibited similar expression levels as the original Pgrac01. Nevertheless, the demonstration of the successful secretion of T1.2RQ lipase in this work confirms the latter as a promising approach for the industrial production of the enzyme
Keyword: Bacillus subtilis, Expression, Extracellular, Heterologous, Lipase, Thermostable