2,296 research outputs found
PREDICTING THE RELATIONSHIP BETWEEN PERCEIVED INFLUENCE, BRAND ENGAGEMENT, BRAND EXPECTED VALUE AND INTENTION PURCHASE: AN EMPRICAL STUDY
The purpose of this study is to predict the relationship between perceived influence, brand engagement, brand expected value, and intention to purchase. The data were gathered from online respondents. The research questionnaire was built from previous research and the research variables were measured by 5-point Likert scales. Before analyzing data for testing hypotheses, reliability and validity tests are performed first. Hypothesis testing is conducted by using structural equation modeling.The results show that there are four out of six hypotheses that are supported. This paper provides research discussion, limitation, and recommendation for future researc
Moments of generalized Husimi distributions and complexity of many-body quantum states
We consider generalized Husimi distributions for many-body systems, and show
that their moments are good measures of complexity of many-body quantum states.
Our construction of the Husimi distribution is based on the coherent state of
the single-particle transformation group. Then the coherent states are
independent-particle states, and, at the same time, the most localized states
in the Husimi representation. Therefore delocalization of the Husimi
distribution, which can be measured by the moments, is a sign of many-body
correlation (entanglement). Since the delocalization of the Husimi distribution
is also related to chaoticity of the dynamics, it suggests a relation between
entanglement and chaos. Our definition of the Husimi distribution can be
applied not only to the systems of distinguishable particles, but also to those
of identical particles, i.e., fermions and bosons. We derive an algebraic
formula to evaluate the moments of the Husimi distribution.Comment: published version, 33 pages, 7 figre
Correlations of observables in chaotic states of macroscopic quantum systems
We study correlations of observables in energy eigenstates of chaotic systems
of a large size . We show that the bipartite entanglement of two subsystems
is quite strong, whereas macroscopic entanglement of the total system is
absent. It is also found that correlations, either quantum or classical, among
less than points are quite small. These results imply that chaotic states
are stable. Invariance of these properties under local operations is also
shown.Comment: 5 pages, 2 figure
Aproveitamento da borra de açaà para produção de biscoitos.
Este trabalho avaliou a farinha da borra de açaà na substituição parcial da farinha de trigo na formulação de biscoito
Penerapan Model Pembelajaran Relating, Experiencing, Applying, Cooperating, Transferring (REACT) untuk Meningkatkan Pemahaman Konsep Fisika SMA
The aims of this study was to test the effectiveness of the Relating, Experiencing, Applying, Cooperating, Transferring (REACT) learning model in improving students' understanding of physics concepts. This research used Action Research with the research subjects of class X MIPA 4 SMA N 2 Batang. Data collection techniques using tests. The results of the research in cycle I showed the number of students who got a score of â„ 60 was 4 students and cycle II was 14 students. These results indicate that the REACT learning model can improve students' understanding of physics concepts. The learning process that is carried out is always connected with events that occur in real life so that students understand the concept more deeply. The REACT learning model can be applied to other physics materials so that students are more actively involved in learning and improve students' understanding of physics concepts
High power diode laser surface glazing of concrete
This present work describes the utilisation of the relatively novel high power diode laser
(HPDL) to generate a surface glaze on the ordinary Portland cement (OPC) surface of
concrete. The value of such an investigation would be to facilitate the hitherto impossible
task of generating a durable and long-lasting surface seal on the concrete, thereby extending
the life and applications base of the concrete. The basic process phenomena are investigated
and the laser effects in terms of glaze morphology, composition and microstructure
are presented. Also, the resultant heat affects are analysed and described, as well as
the effects of the shield gases, O2 and Ar, during laser processing. HPDL glazing of OPC
was successfully demonstrated with power densities as low as 750 W cm-2 and at scanning
rates up to 480 mm min-1. The work showed that the generation of the surface glaze resulted
in improved mechanical and chemical properties over the untreated OPC surface of concrete.
Both untreated and HPDL glazed OPC were tested for pull-off strength, rupture strength,
water absorption, wear resistance and corrosion resistance. The OPC laser glaze exhibited
clear improvements in wear, water sorptivity, and resistance (up to 80% concentration) to
nitric acid, sodium hydroxide and detergent. Life assessment testing revealed that the OPC
laser glaze had an increase in actual wear life of 1.3 to 14.8 times over the untreated OPC
surface of concrete, depending upon the corrosive environment
Comparative monolayer investigations of surface properties of negatively charged glycosphingolipids from vertebrates (gangliosides) and invertebrates (SGL-II, lipid IV).
The surface properties of four negatively charged glycosphingolipids from vertebrates, the sialo-glycosphingolipids (=gangliosides) GM1, GD1a, GT1b and a sulfo-glycosphingolipid (=sulfatide), and of the two negatively charged glycosphingolipids from lower invertebrates, the glucurono-glycosphingolipid Lipid IV and the aminophosphono-glycosphingo-lipid SGL-II were investigated in monolayers at the air/water interface. The molecular peculiarities under investigation were surface pressure (Ï) and surface potential (ÎV) which are described for Lipid IV and SGL-II for the first time. The surface pressure/area isotherms of all glycosphingolipids were typical of a liquid-expanded monolayer and, with the exception of SGL-II, exhibited a phase transition to a liquid-condensed state at surface pressures above 20 mN/m. The surface potential/molecular area data found for gangliosides in the closely packed state at Ï=30 mN/m (GM1: ÎV = â17 mV; GD1a: ÎV = â35 mV; GT1b: ÎV = â39 mV) showed only a slight influence of the additional number of negatively charged residues. For Lipid IV, the surface behavior was very similar to GM1 both possessing one negative group per molecule, whereas in SGL-II also the surface potential data (ÎV = â173 mV) were different compared with GD1a both possessing two negative groups per molecule. The addition of Ca2+ condensed the monolayers of all glycolipids and increased the potential in the direction to more positive values, but these findings were less effective in SGL-II films. On the basis of monolayer results presented here, in biological membranes of invertebrates especially Lipid IV might play a similar role as the ganglioside GM1 in vertebrate cells
Tests and applications of self-consistent cranking in the interacting boson model
The self-consistent cranking method is tested by comparing the cranking
calculations in the interacting boson model with the exact results obtained
from the SU(3) and O(6) dynamical symmetries and from numerical
diagonalization. The method is used to study the spin dependence of shape
variables in the and boson models. When realistic sets of parameters
are used, both models lead to similar results: axial shape is retained with
increasing cranking frequency while fluctuations in the shape variable
are slightly reduced.Comment: 9 pages, 3 ps figures, Revte
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