1,090 research outputs found

    PENGARUH HUBUNGAN PELANGGAN TERHADAP PERILAKU LOYALITAS DIMEDIASIKAN OLEH RASA TERIMA KASIH PELANGGAN PADA KONSUMEN MEMBER SUZUYA MALL BANDA ACEH

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    ABSTRAKPenelitian ini bertujuan untuk mengukur pengaruh Hubungan Pelangganterhadap Perilau Loyalitas dengan Rasa Terima Kasih Pelanggan sebagai variabelmediasi pada konsumen member Suzuya Mall di Kota Banda Aceh. Sampel yangdigunakan dalam penelitian ini adalah konsumen member Suzuya Mall BandaAceh yang berjumlah 100 responden. Peralatan pengumpulan data yangdigunakan pada penelitian ini adalah kuisioner. Teknik pengambilan sampel yangdigunakan adalah Purposive Sampling. Hierarchical Linear Modelling (HLM)digunakan sebagai metode analisis untuk mengetahui pengaruh dari semuavariabel-variabel yang terlibat. Berdasarkan hasil analisis HLM ditemukanhubungan pelanggan berpengaruh positif terhadap perilaku loyalitas, hubunganpelanggan berpengaruh positif terhadap rasa terima kasih pelanggan, dan terdapatpengaruh positif hubungan pelanggan terhadap perilaku loyalitas yangdimediasikan oleh rasa terima kasih pelanggan.Kata Kunci: Hubungan Pelanggan, Rasa Terima Kasih Pelanggan, PerilakuLoyalitas, Hierarchical Linear Modellin

    Probing the Ionic Dielectric Constant Contribution in the Ferroelectric Phase of the Fabre-Salts

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    In strongly correlated organic materials it has been pointed out that charge-ordering could also achieve electronic ferroelectricity at the same critical temperature TcoT_{co}. A prototype of such phenomenon are the quasi-one dimensional (TMTTF)2X_2X Fabre-salts. However, the stabilization of a long-range ferroelectric ground-state below TcoT_{co} requires the break of inversion symmetry, which should be accompanied by a lattice deformation. In this work we investigate the role of the monovalent counter-anion XX in such mechanism. For this purpose, we measured the quasi-static dielectric constant along the c∗c^{*}-axis direction, where layers formed by donors and anions alternate. Our findings show that the ionic charge contribution is three orders of magnitude lower than the intra-stack electronic response. The c∗c^{*} dielectric constant (ϵc∗′\epsilon'_{c^*}) probes directly the charge response of the monovalent anion XX, since the anion mobility in the structure should help to stabilize the ferroelectric ground-state. Furthermore, our ϵc∗′\epsilon'_{c^*} measurements %conjugated with earlier investigations of the c∗c^* lattice thermal expansion, show that the dielectric response is thermally broaden below TcoT_{co} if the ferroelectric transition occurs in the temperature range where the anion movement begin to freeze in their methyl groups cavity. In the extreme case of the PF6_6-H12_{12} salt, where TcoT_{co} occurs at the freezing point, a relaxor-type ferroelectricity is observed. Also, because of the slow kinetics of the anion sub-lattice, global hysteresis effects and reduction of the charge response upon successive cycling are observed. In this context, we propose that anions control the order-disorder or relaxation character of the ferroelectric transition of the Fabre-salts.Comment: 8 pages, 7 figures. To appear in Physical Review

    Evidence for Lattice Effects at the Charge-Ordering Transition in (TMTTF)2_2X

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    High-resolution thermal expansion measurements have been performed for exploring the mysterious "structureless transition" in (TMTTF)2_{2}X (X = PF6_{6} and AsF6_{6}), where charge ordering at TCOT_{CO} coincides with the onset of ferroelectric order. Particularly distinct lattice effects are found at TCOT_{CO} in the uniaxial expansivity along the interstack c*\textbf{\textit{c*}}-direction. We propose a scheme involving a charge modulation along the TMTTF stacks and its coupling to displacements of the counteranions X−^{-}. These anion shifts, which lift the inversion symmetry enabling ferroelectric order to develop, determine the 3D charge pattern without ambiguity. Evidence is found for another anomaly for both materials at TintT_{int} ≃\simeq 0.6 ⋅\cdot TCOT_{CO} indicative of a phase transition related to the charge ordering

    Low temperature structural effects in the (TMTSF)2_2PF6_6 and AsF6_6 Bechgaard salts

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    We present a detailed low-temperature investigation of the statics and dynamics of the anions and methyl groups in the organic conductors (TMTSF)2_2PF6_6 and (TMTSF)2_2AsF6_6 (TMTSF : tetramethyl-tetraselenafulvalene). The 4 K neutron scattering structure refinement of the fully deuterated (TMTSF)2_2PF6_6-D12 salt allows locating precisely the methyl groups at 4 K. This structure is compared to the one of the fully hydrogenated (TMTSF)2_2PF6_6-H12 salt previously determined at the same temperature. Surprisingly it is found that deuteration corresponds to the application of a negative pressure of 5 x 102^2 MPa to the H12 salt. Accurate measurements of the Bragg intensity show anomalous thermal variations at low temperature both in the deuterated PF6_6 and AsF6_6 salts. Two different thermal behaviors have been distinguished. Low-Bragg-angle measurements reflect the presence of low-frequency modes at characteristic energies {\theta}E_E = 8.3 K and {\theta}E_E = 6.7 K for the PF6_6-D12 and AsF6_6-D12 salts, respectively. These modes correspond to the low-temperature methyl group motion. Large-Bragg-angle measurements evidence an unexpected structural change around 55 K which probably corresponds to the linkage of the anions to the methyl groups via the formation of F...D-CD2 bonds observed in the 4 K structural refinement. Finally we show that the thermal expansion coefficient of (TMTSF)2_2PF6_6 is dominated by the librational motion of the PF6_6 units. We quantitatively analyze the low-temperature variation of the lattice expansion via the contribution of Einstein oscillators, which allows us to determine for the first time the characteristic frequency of the PF6 librations: {\theta}E_E = 50 K and {\theta}E_E = 76 K for the PF6_6-D12 and PF6_6-H12 salts, respectively

    Pengaruh Perbandingan Kulit Jeruk Purut (Citrus hystrix DC.) dan Daun Sirsak (Annona muricata L.) terhadap Karakteristik Teh Celup Herbal dengan Pemanis Alami Bubuk Stevia (Stevia rebaudiana Bertoni)

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    PENGARUH PERBANDINGAN KULIT JERUK PURUT (Citrus hystrix DC.) DAN DAUN SIRSAK (Annona muricata L.) TERHADAP KARAKTERISTIK TEH CELUP HERBAL DENGAN PEMANIS ALAMI BUBUK STEVIA (Stevia rebaudiana Bertoni) Foury Rahmiza1, Tuty Anggraini2, Purnama Dini Hari2 ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh perbandingan daun sirsak dan kulit jeruk purut dengan pemanis bubuk daun stevia dan tingkat perbandingan kulit jeruk purut dan daun sirsak terbaik berdasarkan karakteristik kimia dan organoleptik teh celup herbal. Penelitian ini dengan menggunakan metode Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 3 ulangan yaitu perbandingan teh daun sirsak dan kulit jeruk purut dengan konsentrasi A (100% : 0%), B (75% : 25%), C (70% : 30%), D (65% : 35%), dan E (60% : 40%). Data penelitian dianaisis secara statistik menggunakan ANOVA kemudian dilanjutkan dengan analisis Duncan’s Multiple Range Test (DMRT) pada taraf nyata 5%. Hasil penelitian menunjukkan bahwa perbandingan kulit jeruk purut dan daun sirsak berpengaruh nyata terhadap total polifenol, dan uji organoleptik warna dan aroma. Perlakuan terbaik pada penelitian ini adalah perlakuan C (70% : 30%), analisis kimia teh celup herbal dengan rata-rata kadar air (7,41%), aktivitas antioksidan (65,39%), total polifenol (73,77 mg GAE/g), dan pada seduhan teh nilai pH (5,73) dan nilai IC50 (28,46 ppm). Sedangkan berdasarkan nilai penerimaan organoleptik dengan rata-rata nilai yaitu warna 3,85 (suka), rasa 3,15 (biasa), dan aroma 3,65 (suka). Kata kunci: antioksidan, bubuk daun stevia, daun sirsak, kulit jeruk purut, teh celup herba

    Resonant inelastic x-ray scattering probes the electron-phonon coupling in the spin-liquid kappa-(BEDT-TTF)2Cu2(CN)3

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    Resonant inelastic x-ray scattering at the N K edge reveals clearly resolved harmonics of the anion plane vibrations in the kappa-(BEDT-TTF)2Cu2(CN)3 spin-liquid insulator. Tuning the incoming light energy at the K edge of two distinct N sites permits to excite different sets of phonon modes. Cyanide CN stretching mode is selected at the edge of the ordered N sites which are more strongly connected to the BEDT-TTF molecules, while positionally disordered N sites show multi-mode excitation. Combining measurements with calculations on an anion plane cluster permits to estimate the sitedependent electron-phonon coupling of the modes related to nitrogen excitation

    L'occupation du site hivernal inuit Oakes Bay 1 (HeCg-08), Labrador, Canada : micromorphologie et zooarchéologie des dépotoirs

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    Les fouilles archéologiques du site Oakes Bay 1 à Dog Island, près de Nain (Nunatsiavut, Labrador) ont révélé l'existence d'un village hivernal inuit habité de la fin du 17ème à la fin du 18ème siècle. Cette occupation intervient pendant le Petit Âge glaciaire qui a engendré une importante variabilité sur l'étendue de la banquise côtière et donc sur la répartition des différentes populations de phoques de la région, chassées par les Inuits. L'objectif principal de cette étude est d'utiliser, de façon conjointe et inédite, la zooarchéologie et la micromorphologie, afin de proposer une fine chronologie d'occupation reliée à l'évolution des pratiques de subsistance et ce, pour deux maisons occupées au 18ème siècle. Les analyses montrent que l'économie de subsistance était constante et basée sur la chasse au phoque annelé au printemps sur la banquise côtière. Pour chaque maison, on observe une première phase d'occupation récurrente associée à des conditions environnementales prévisibles suivie d'une deuxième phase d'occupation plus sporadique probablement liée à des variations climatiques plus importantes. Cette étude montre que l'utilisation conjointe de la micromorphologie et de la zooarchéologie permet d'identifier différents marqueurs climatiques ainsi que des processus naturels et anthropiques responsables de la formation des dépotoirs
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