The invariant imbedding equation for the dissipation function of a homogeneous finite slab

Differential-integral equation for dissipation function and derivation of conservation relationship connecting reflection, transmission and dissipation functions of finite sla

Self-service technology in supermarkets – do frontline staff still matter?

This paper uses the concept of psychological distance under construal level theory to explore the differences in the customers’ evaluations of overall store quality, satisfaction and loyalty, based on their experiences with the traditional staff-checkout method and the relatively new self-checkout machines. Two empirical studies, a field survey with retail shoppers in UK (N1 = 313) and an online survey with members of a consumer panel in Australia (N2 = 474), show that the perceived quality of staff checkout has a stronger positive impact on the overall store quality, satisfaction and loyalty, than the quality of self-checkout. Similarly, satisfaction with staff-checkout has a stronger positive effect on store satisfaction and loyalty, than the satisfaction with self-checkout. Finally, loyalty to staff-checkout also has a stronger positive influence on store loyalty, than the loyalty towards self-checkout. These results show that despite growing use of self-service technology, frontline staff continue to be important for overall store evaluations

On the nature of the X-ray absorption in the Seyfert 2 galaxy NGC 4507

We present results of the ASCA observation of the Seyfert 2 galaxy NGC 4507. The 0.5-10 keV spectrum is rather complex and consists of several components: (1) a hard X-ray power law heavily absorbed by a column density of about 3 10^23 cm^-2, (2) a narrow Fe Kalpha line at 6.4 keV, (3) soft continuum emission well above the extrapolation of the absorbed hard power law, (4) a narrow emission line at about 0.9 keV. The line energy, consistent with highly ionized Neon (NeIX), may indicate that the soft X-ray emission derives from a combination of resonant scattering and fluorescence in a photoionized gas. Some contribution to the soft X-ray spectrum from thermal emission, as a blend of Fe L lines, by a starburst component in the host galaxy cannot be ruled out with the present data.Comment: 8 pages, LateX, 5 figures (included). Uses mn.sty and epsfig.sty. To appear in MNRA

Cultural differences in deliberate counterfeit purchase behavior

Purpose This paper explores the moderating effects of four personal cultural orientations or PCOs (independence, interdependence, risk aversion and ambiguity intolerance) on the relationships among counterfeit proneness, subjective norms, ethical judgments, product evaluation and purchase intentions for counterfeit products. Design/methodology/approach A field study with 840 consumers in Hong Kong using a self-administered structured questionnaire is used to test all the hypotheses. Finding Consumers with high (low) scores on interdependence (independence) show stronger positive effects of counterfeit proneness on subjective norms and its effects on the counterfeit evaluation and purchase intentions. In contrast, consumers with high (low) scores on independence (interdependence) show stronger positive effects of counterfeit proneness on ethical judgments and its effects on counterfeit evaluation and purchase intentions. Consumers with higher scores on risk aversion and ambiguity intolerance show negative moderating effects on most of the relationships in the unified conceptual framework. Research limitations/implications The authors collected data in Hong Kong, which is predominantly Chinese in culture. Hence, future research in other parts of the world with more diverse cultural values would help test the validity and generalizability of the results. Practical implications The findings would be useful for managers of genuine brands to learn more about the process that explains deliberate counterfeit purchase behavior. Originality/value The authors extend the unified conceptual framework for deliberate counterfeit purchase behavior by incorporating four PCOs to explore cultural differences in the socio-psychological decision-making process underlying this behavior

Customer engagement and relationships in multi-actor service ecosystems

With the growing realization that most service ecosystems consist of interactions among multiple participants, including customers, employees, and others, there are increasing calls for research on the interdependent nature of customer engagements and relationships in multi-actor service ecosystems. This special issue addresses these calls with 22 articles (including three invited articles), classified along five distinct groups, including a) Co-creation, collaboration and socialization among actors, b) Actors’ (dis)engagement, c) role of the ‘other’ actors, d) dark side of multi-actor service ecosystems, and e) emerging trends – digital technologies and others. This editorial begins by reviewing the multi-actor service ecosystems literature to identify some important research gaps. Next, it briefly describes the 22 articles included in this special issue arranged along the above five themes and their major findings. Finally, the guest editors discuss the implications of these findings and some useful directions for future research in this area of growing importance

Critical Casimir effect and wetting by helium mixtures

We have measured the contact angle of the interface of phase-separated $^{3}$He-$^{4}$He mixtures against a sapphire window. We have found that this angle is finite and does not tend to zero when the temperature approaches $T_t$, the temperature of the tri-critical point. On the contrary, it increases with temperature. This behavior is a remarkable exception to what is generally observed near critical points, i.e. "critical point wetting''. We propose that it is a consequence of the "critical Casimir effect'' which leads to an effective attraction of the $^{3}$He-$^{4}$He interface by the sapphire near $T_{t}$.Comment: submitted july 13 (2002), published march 20 (2003

Generarized Cubic Model for BaTiO3_3-like Ferroelectric Substance

We propose an order-disorder type microscopic model for BaTiO$_3$-like Ferroelectric Substance. Our model has three phase transitions and four phases. The symmetry and directions of the polarizations of the ordered phases agree with the experimental results of BaTiO$_3$. The intermediate phases in our model are known as an incompletely ordered phase, which appears in a generalized clock model.Comment: 6 pages, 4figure

Ultrasonic Apparatus and Method to Assess Compartment Syndrome

A process and apparatus for measuring pressure buildup in a body compartment that encases muscular tissue. The method includes assessing the body compartment configuration and identifying the effect of pulsatible components on compartment dimensions and muscle tissue characteristics. This process is used in preventing tissue necrosis, and in decisions of whether to perform surgery on the body compartment for prevention of Compartment Syndrome. An apparatus is used for measuring pressure build-up in the body compartment having components for imparting ultrasonic waves such as a transducer, placing the transducer to impart the ultrasonic waves, capturing the imparted ultrasonic waves, mathematically manipulating the captured ultrasonic waves and categorizing pressure build-up in the body compartment from the mathematical manipulations

Role of charge carriers for ferromagnetism in cobalt-doped rutile TiO2

Electric and magnetic properties of a high temperature ferromagnetic oxide semiconductor, cobalt-doped rutile TiO2, are summarized. The cobalt-doped rutile TiO2 epitaxial thin films with different electron densities and cobalt contents were grown on r-sapphire substrates with laser molecular beam epitaxy. Results of magnetization, magnetic circular dichroism, and anomalous Hall effect measurements were examined for samples with systematically varied electron densities and cobalt contents. The samples with high electron densities and cobalt contents show the high temperature ferromagnetism, suggesting that charge carriers induce the ferromagnetism.Comment: 14 pages, 12 figure