PENGARUH KUALITAS PRODUK DAN HARGA TERHADAP KEPUASAN KONSUMEN PADA PT. MARGA TIRTA KENCANA (Survei Pada Penghuni Perumahan Permata Buah Batu 1)

ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh Kualitas Produk dan Harga terhadap Kepuasan Konsumen pada PT. Marga Tirta Kencana (Survei Pada Perumahan Permata Buah Batu 1 Bandung). Rumusan masalah dalam penelitian ini adalah bagaimana tanggapan konsumen mengenai kualitas produk yang ditawarkan, bagaimana tanggapan konsumen mengenai harga yang ditawarkan, bagaimana kepuasan konsumen, dan seberapa besar pengaruh kualitas produk dan harga terhadap kepuasan konsumen di PT. Marga Tirta Kencana Bandung secara simultan dan parsial. Metode yang digunakan penulis dalam penelitian ini adalah penelitian deskriptif dan verifikatif dengan tehnik pengumpulan data dengan interview (wawancara), kuesioner (angket) dan observasi (pengamatan). Adapun ukuran populasinya 619 orang dengan sampel 87 orang. Sedangkan tehnik sampling yang digunakan untuk menghitung besarnya ukuran sampel dalam non-probability sampling. Sesuai dengan perhitungan statistik, Kualitas Produk berada dalam kategori baik dan Harga berada dalam kategori baik terhadap Kepuasan Konsumen pada PT. Marga Tirta Kencana yang berada dalam kategori puas. Kata Kunci : Kualitas Produk, Harga, Kepuasan Konsume

Tunneling and Quantum Noise in 1-D Luttinger Liquids

We study non-equilibrium noise in the transmission current through barriers in 1-D Luttinger liquids and in the tunneling current between edges of fractional quantum Hall liquids. The distribution of tunneling events through narrow barriers can be described by a Coulomb gas lying in the time axis along a Keldysh (or non-equilibrium) contour. The charges tend to reorganize as a dipole gas, which we use to describe the tunneling statistics. Intra-dipole correlations contribute to the high-frequency ``Josephson'' noise, which has an algebraic singularity at $\omega=e^*V/\hbar$, whereas inter-dipole correlations are responsible for the low-frequency noise. Inter-dipole interactions give a $1/t^2$ correlation between the tunneling events that results in a $|\omega|$ singularity in the noise spectrum. We present a diagrammatic technique to calculate the correlations in perturbation theory, and show that contributions from terms of order higher than the dipole-dipole interaction should only affect the strength of the $|\omega|$ singularity, but its form should remain $\sim |\omega|$ to all orders in perturbation theory.Comment: RevTex, 9 figures available upon request, cond-mat/yymmnn

Revisiting the Gaia Hypothesis: Maximum Entropy, Kauffman’s ‘Fourth Law’ and Physiosemeiosis

Recently, Kleidon suggested to analyze Gaia as a non-equilibrium thermodynamic system that continuously moves away from equilibrium, driven by maximum entropy production which materializes in hierarchically coupled mechanisms of energetic flows via dissipation and physical work. I relate this view with Kauffman's 'Fourth Law of Thermodynamics', which I interprete as a proposition about the accumulation of information in evolutionary processes. The concept of physical work is expanded to including work directed at the capacity to work: I offer a twofold specification of Kauffman's concept of an 'autonomous agent', one as a 'self-referential heat engine', and the other in terms of physiosemeiosis, which is a naturalized application of Peirce's theory of signs. The conjunction of these three theoretical sources, Maximum Entropy, Kauffman's Fourth Law, and physiosemeiosis, shows that the Kleidon restatement of the Gaia hypothesis is equivalent to the proposition that the biosphere is generating, processing and storing information, thus directly treating information as a physical phenomenon. There is a fundamental ontological continuity between the biological processes and the human economy, as both are seen as information processing and entropy producing systems. Knowledge and energy are not substitutes, with energy and information being two aspects of the same underlying physical process