Miracle-dz/UniFAR-FTUs huggingface dataset:
Shopping Experience 2.0: An Exploration of How Consumers are Shopping in an Immersive Virtual Reality

Virtual reality creates a sense of immersion. When interaction any business wants to develop an interactive system in an immersive virtual reality, the difficulties are not about how to design a highly interactive interface, but the design of interactive experiences for the consumers. Therefore, the power of interactivity is all about creating experiences in a virtual world. This concept is particularly important in the area of virtual design in ebusiness. The future ebusiness has to enhance consumers' shopping experiences through the interactive design, and trigger their purchase intentions through the design of the interactive experiences. This paper aims to discuss the power of interactivity in virtual shopping domains. Emphasis is placed on (1) the power of interactivity in virtual reality; (2) the shopping experience 2.0: Interactivity, telepresence and vividness; (3) creating consumers' sense of immersion through interactivity and simulation. A pilot research project explored the design of interactivity for upgrading consumers' shopping experiences. Our team develops an augmented reality shop, which is designed with the elements of virtual shopping experience. Based on this designed shop, we invited 61 participants for in-depth interview, after experiencing the augmented reality shop. The result of interview generates six major findings. It highlights the future development of shopping experience 2.0. The research indicates the importance of the human element in the design of interaction. There is a need for future business to studying the human experience closely when developing virtual shopping in virtual worlds for future.
Modelling of optical emissions enhanced by the HF pumping of the ionospheric F-region

Abstract. Strong enhancement of the optical emissions with excitation threshold from 1.96 eV (630.0 nm from O(1D)) up to 18.75 eV (427.8 nm from N2+(1NG)) have been observed during experiments of the ionosphere modification by high power HF radio waves. Analysis of the optical emission ratios showed clearly that a significant part of the ionospheric electrons have to be accelerated to energies above 30 eV and more in the region where the HF radio wave effectively interacts with the ionospheric plasma. The Monte-Carlo model of electron transport and the optical emission model were used to study the dependence of the optical emission intensity on the acceleration electron parameters. We obtained the following results from analysis of the enhanced intensities of the four optical emissions (630.0, 557.7, 844.6 and 427.8 nm) observed in the EISCAT heating experiment on 10 March 2002. The 630.0 emission with an excitation threshold of 1.96 eV is formed predominately by the thermal electrons, where the accelerated electrons play a minor role in the excitation of this emission. In order to explain the experimentally observed intensity ratios, the accelerated electrons must gain energies of more than 60 eV. For accelerated electrons with a power law energy dependence, the efficiency of the optical emission excitation depends on the exponent defining the shape of the electron spectra. However, an agreement with the observed emission intensities is achieved for exponent values not less than zero. Moreover, increasing the exponent to higher values does not affect the emission intensity ratios.
Enterprise Performance and Ownership Changes in Polish Firms

The paper consists of two parts. In the first part, the authors briefly summarize the results of previous analyses devoted to such issues of relevance as the ownership structure of privatized companies in Poland and how it changed over the course of the 1990s, what factors seemed to have influenced those changes, the economic performance of these companies, and the composition of corporate governance organs such as supervisory and executive boards. In the second part, the authors present the results of econometric analysis of the relationship between performance and ownership structure evolution, focusing on concentration and the respective roles of three types of owners – managers, non-managerial employees, and strategic outside investors. In reference to the debate about whether ownership variables are exogenous or endogenous for performance, they test both hypotheses concerning the effect of ownership on performance and concerning the effect of performance on ownership change.
A Combined Approach for Effective Features Extraction from Online Product Reviews

Today E-commerce websites provide customers with the needed product information by giving various kinds of services to choose from. One such service is to allow the customer to read the end user online reviews. Online reviews contain features which are useful for the analysis in opinion mining. Converting these unstructured reviews into useful information require extracting the product features from them. Natural Language Processing (NLP) based technique extracts various kinds of product features including the low frequency features. Topic Modeling based approach also identifies specific product features from the online reviews. The effective number of product features is made available to the customer when these two approaches are combined. This results in the expanded product feature set so that the customer makes wise decisions without having to compromise on the feature set.
Segment connectivity, chain-length breathing, segmental stretch, and constraint release in reptation models. III. Shear flows

A previously proposed self-consistent reptation model that includes chain stretching, chain-length fluctuations, segment connectivity, and constraint release is used to predict transient and steady shearing flows. Quantitative comparisons are made with the concentrated solution data considered in the previous papers of the series. The model is able to capture quantitatively all features of experimental data considered, including overshoot in both shear and first normal stresses, the strain-rate dependence of the strain magnitude at maximum stress, the steady-state viscosity and first-normal-stress coefficient as functions of shear rate, the viscosity curves for different molecular weight, the transient and steady-state behavior of the extinction angle, and the stress relaxation in cessation of steady shear flow. The model can describe all aspects of the data very well except the magnitude of the overshoot in stress at high shear rates, where the model is somewhat over-predictive. A new method of analysis for shear stress decay following cessation of steady shear is proposed, based on the physics of the model.
Yield stability over several years in Coffea canephora: definition of synthetic traits and longitudinal data analyses.

The effectiveness of the perennial plants breeding is restricted by particular constraints linked to the crops lifespan. Moreover, acting of a production of fruits or seeds as to the coffee-tree, how many years of observation are necessary to define the trait of “production”? And how to integrate the variations of the trait in time with a breeding purpose in which stability and durability are often mentioned? To try to answer these questions, a trial comparing 20 clones of Coffea canephora, monitored over 9 years of production, was analyzed according to various methods. Two main methods were proposed: i) the first one proposed indexes definition – the indexes described precocity, alternation and intensity of inter-annual variations; ii) the second one proposed a modelization of the data by a longitudinal data analysis approach. It was found that the first cycle (first 4 years) are not always sufficient for predicting the yield capacity of the clones. The intensity of the relative differences between yields in successive years was a trait that was only heritable in the second production cycle. Low intensities for those differences were favorable to cumulative production. Strong alternations were not propitious to optimizing cumulative production. Several models were tested for longitudinal data analyses and Compound Symetric’s one with heterogeneous variances (CSH model) allowed to better describe data structure. Thus, correlations between yields of successive years were pretty stable that reveals an important trees’ effect among this clonal population. Variability was found for yield distribution over time. It is therefore possible to define “stability” traits and to select cultivars with lower annual yield variations, thereby ensuring regular income for coffee farmers.
'Soft' growth and the role of monetary policy in selecting the long-run equilibrium path

Combining employment and growth theory with a cash-in-advance constraint, the model determines the balanced growth path (BGP). Under low intertemporal elasticity of substitution in consumption, the Friedman rule is consistent with the existence of an unique BGP: monetary rules leading to a steady-state rate of money expansion higher than that dictated by the Friedman rule lower balanced growth. Under high elasticity, the Friedman rule is consistent with multiple BGP: the authority can "select" the BGP exhibiting the highest growth rate by expanding money at the appropriate fixed rate, since balanced growth rises with the fixed rate of money expansion.
Development of Earth-Volume Estimation Program using the precise LiDAR DEM

In this study, EWS (Earth Work System), the earth-volume estimation program was developed in a way that could enhance efficiency of civil engineering construction through precise earth-volume modeling based on the 3D geospatial information. In this program, it is possible to estimate the precise earth-volume using LiDAR DEM and to establish the earth work plans based on the unit workload of the construction equipments. Also, EWS program can support the 3D visualization of the final results through Google Earth in order to understand intuitively or share the results of earth-volume estimation in the construction project. For verifying the possibility of appling EWS program to construction project, the construction site of Shin-Pochun substation in Shinbuk-myun, Pochon-City, Kunggi Province was selected as a study area and the results of earth-volume and earth work plans estimated from EWS program were compared with those of DAS program. As a result of comparison between EWS and DAS program, the more accurate earth-volume can be estimated by using 3D geospatial information and more reasonable earth work plan can also be established when use the EWS program was developed in this study. Thus, EWS program can enables improvement of productivity by establishing efficient construction plan in the construction site.
The Role of Functional Feed Additives in Modulating Intestinal Health and Integrity

One of the biggest challenges for the animal feed industry in the coming years will be to meet the growing demand in animal protein in light of increased cost of feed ingredient as well as tougher restrictions on the use of antimicrobial growth promoters imposed by consumers and governments. A key focus area will be to maximise feed efficiency and minimise nutrient waste. It has been widely acknowledged that the composition of the intestinal microflora is closely related to intestinal health and performance of animals. Advanced microbial techniques have shown a close relationship between bacterial communities and their ability to modulate nutrient absorption and processing. In addition it has been recognised that modulating the immune response has significant impact on overall health as well as overall nutrient demand. Molecular techniques are a useful tool to gain an understanding of the impact of dietary interventions including the use of functional feed additives on specific changes in microbial communities or the immune system. Most these techniques however focus on the evaluation of large changes in bacterial compositions and often underestimate or neglect to recognise small changes in microbial diversity or behaviour changes without any measurable immune response. The key to understanding the relationship between specific nutritional intervention and the impact on health and performance lies in a deeper understanding of the impact of these nutrients on the expression of specific genes or specific metabolic pathways. The development of molecular tools as a result of developments in the field of Nutrigenomics has enabled researchers to study the effects of specific nutrients on the whole genome or in other words, the effect of thousands of genes simultaneously, and has opened a completely different avenue for nutritional research.
Imperfection of Domain Knowledge and Its Formalization in Context of Design of Robust Software Systems

In this paper, it is emphasized that taking into consideration of imperfection of knowledge, of the team of the designers/developers, about the problem domains and environments is essential in order to develop robust software metrics and systems. In this respect, first various possible types of imperfections in knowledge are discussed and then various available formal/mathematical models for representing and handling these imperfections are discussed. The discussion of knowledge classification & representation is from computational perspective and that also within the context of software development enterprise, and not necessarily from organizational management, from library & information science, or from psychological perspectives.
The Effects of Ethanolic Extract of Root of Sphenocentrum Jollyanum Pierre on Sexual Behaviour and Hormonal Levels in Rodents

Roots of S. jollyanum are considered as sexual stimulant in Ghanaian traditional medicine. The present study is aimed at investigating the effect of an ethanolic extract of the root of S. jollyanum on sexual behaviour of male mice and reproductive hormones in male rats. Extract of S. jollyanum (100, 300 and 1000 mg/kg p.o) stimulated mounting and mating behaviour by increasing mounting frequency, intromission frequency and prolonged ejaculation latency. In addition, a decrease in mounting latency, intromission latency and postejaculatory interval was observed. These observations were indicative of increased libido and enhanced sexual behaviour. However, the dose-response curves of some of the parameters measured (attempted mounts, mounting frequency, anogenital sniffing and penile licking) were U-shaped i.e. the effects observed were absent at higher doses. Also the effect of the extract on FSH, LH, prolactin and testosterone levels in rats were determined at weekly intervals for three weeks. Levels of testosterone were increased 4-fold by the third week and there was about 30% increase in FSH levels by the second week which dropped by the third week. Surprisingly, LH levels were reduced by the second week with no significant change in levels of prolactin. These results suggest that there may be more than one mechanism of action of the extract. The immediate increase in sexual behaviour by extract of S. jollyanum may be due to a central stimulatory effect whilst long-term effect might be due to increased testosterone levels. The stimulation of sexual behaviour in male mice and rats supports the claims for its traditional usage in sexual disorders.
Assessing students' moral development and motivation in moral education

Major global crises such as the surge of terrorism and the repercussions of the economic downturn have rekindled an interest in the development of morality and the nurturing of universal values. To date, research on moral functioning has originated predominantly from Western contexts. This study aims to provide an Asian perspective to the existing models. It combines a Kohlbergian approach for the assessment of moral judgment, with a framework based on the Self-Determination Theory to assess the motivational regulations of Singaporean students. The presentation outlines the methodology used and the interim results obtained in the pilot study. The preliminary data indicate that, generally, the development of moral reasoning of the Singaporean students matches the level prescribed for their age group in Kohlberg’s theory. There is however, a need to review the way in which Moral Education is conducted in schools in order to improve students’ motivation in the subject.
FATHER ABSENCE, PARENT-DAUGHTER RELATIONSHIPS AND PARTNER PREFERENCES

Abstract The purpose of this research was to determine whether or not the father absence literature can be successfully used to predict patterns of female preferences for facial masculinity in young adulthood. Predictions were made based on the effect father absence may have on the development of (a) sexual strategy, and (b) female ‘condition’, and were tested in two independent samples. Results for the link between father absence and masculinity preference were mixed; across both studies, however, daughters who reported low quality relationship with parents during childhood showed lower masculinity preference. These results predominantly support the condition dependence predictions that early family stress should be associated with reduced ability to compete for mates and thus preference for less masculine men. Additionally, in Study 2, family background was associated with facial preferences and age of menarche only amongst women who were not currently in happy and committed relationships, which suggest.
Participation of the third order optical nonlinearities in nanostructured silver doped zinc oxide thin solid films

We report the transmittance modulation of optical signals in a nanocomposite integrated by two different silver doped zinc oxide thin solid films. An ultrasonic spray pyrolysis approach was employed for the preparation of the samples. Measurements of the third-order nonlinear optical response at a nonresonant 532nm wavelength of excitation were performed using a vectorial twowave mixing. It seems that the separated contribution of the optical nonlinearity associated with each film noticeable differs in the resulting nonlinear effects with respect to the additive response exhibited by the bilayer system. An enhancement of the optical Kerr nonlinearity is predicted for prime number arrays of the studied nanoclusters in a two-wave interaction. We consider that the nanostructured morphology of the thin solid films originates a strong modification of the third-order optical phenomena exhibited by multilayer films based on zinc oxide.
Growing microbes in millifluidic droplets

Microbiology has continuously pushed efforts towards understanding microbial diversity. Technologies and methods have also evolved, from plating, and use of microscopes and cytometers, towards micro‐well handling robots and, finally, fluidic‐based devices. The aim of this review was to bring microbiologists attention to the outstanding analytical and handling power of millifluidic droplet technologies for analysing and sorting phenotypic diversity in the microbial world. This new format overcomes many limitations of previous approaches. It provides outstanding reproducible growth conditions over droplet reservoirs allowing unprecedented sensitive read‐out over thousands of colonies over time. The confinement of the millifluidic train within tubes and the implementation of a three phases format excludes any contamination issues. The automation and handling of reservoir droplets is inherently facilitated. We show as a proof of principle the efficiency of capturing phenotypic diversity within a bacterial sample submitted to a sub‐minimum inhibitory concentration of antibiotic. The precision offered by the millifluidic format allows the detection of a variety of resistance strategies that compete and coexist. The review finally explores the potential of this approach to address new challenges such as community‐based growth of multiple‐strain systems.
Airborne Measurements of High Pollutant Concentration Events in the Free Troposphere over the West Coast of South Korea between 1997 and 2011

ABSTRACTAircrafts enable the direct measurement of chemical components in the free troposphere (FT). This study employed airborne measurements to examine the occurrences of high concentrations of SO2 and NOx in the FT over the coastal region west of the Seoul metropolitan area, South Korea. The data from a long-term (1997–2011) airborne measurement campaign were used to determine the meteorological conditions favorable for carrying these pollutants into the Seoul area. The back trajectory analyses of 21 instances of high FT pollutant concentration events showed ascending patterns from the major pollutant sources, mainly the industrial complexes in eastern China, in 9 instances and passing patterns in 12 instances. In the ascending instances, developing low-pressure systems over the source regions provide favorable conditions to uplift air pollutants from the surface into the FT. In the passing instances, an anomalous low-pressure system near the surface prevented airflows from descending into the boundary layer and upper-level anticyclonic systems helped to keep the ascending airflows in the FT. This study proposes the basic mechanisms for predicting air quality in the Seoul area, considering that air pollutants in the FT often entrain into the boundary layer to increase local concentrations.
Empirical Analysis on the Effect of Gross Vehicle Weight and Vehicle Size on Speed in Car Following Situation

This study explores empirically how the gross vehicle weight (GVW) of a following vehicle and the size of leading vehicle will affect the driver behavior in controlling their speed under different compositions of leader-follower pairs in a car-following situation. A large sample of traffic and vehicular data for various vehicle types were obtained continuously using a weigh-in-motion (WIM) based transport data collection system installed at Federal Route 54 in Malaysia. Then, statistical analysis was applied to explore the driver behavior in controlling the speed in a car-following situation from two different perspectives: driver's visual input and vehicle dynamics capability. The main finding of this study is that when the authors incorporated the vehicle dynamic's capability in a car-following situation, the GVW of the following vehicle and the size of the leading vehicle were significant sources of variation in the following vehicle's speed and relative speed, and their interaction influenced the driver behavior in controlling the speed.
Hard magnetic FePt films for atom chips

In this work FePt hard magnetic films were prepared with a thickness of 250 and 500 nm for making atom chips. We choose FePt because it has high magnetocrystalline anisotropy as well as high saturation magnetization. The FePt films were deposited at room temperature and at 350 °C using Molecular Beam Epitaxy on a Si substrate. After post annealing, the samples have high in-plane and out-of-plane coercivity (Hc = 8.0 kOe and 8.34 kOe, respectively) and remanent magnetization (Mr/Ms = 0.90, 0.93, respectively). Whereas the samples deposited at room temperature have many cracks on the surface, the samples deposited at 350 °C are free of cracks and their surfaces are mirror-like. The magnetized sample keeps the magnetization after baking in vacuum at 170 °C for 24 hours. A calculation shows that such samples can be used to trap cold atoms after lithographic patterning. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
A Ring-Focus Antenna with Splash Plate in Ka-Band

A design for Ka-band satellite communication antenna in earth station is introduced. This kind of antenna uses splash plate feed based on ring-focus antenna. The theory of the new splash plate feed design is presented and the relative equations are derived. The measured antenna parameters, VSWR, and patterns are highly consistent with the simulated results, which demonstrates the success of the design for such kind of antenna that can be effectively used in Ka-band applications.