Miracle-dz/UniFAR-FTUs huggingface dataset:
Cultivating travellers' revisit intention to e-tourism service: the moderating effect of website interactivity

The research goals of this study were to investigate how the design and service quality of the website of the public sectors affect tourists' satisfaction and continued usage intention. We collected a sample of tourists, using a survey questionnaire, and we tested the model and hypotheses using a structural equation modelling approach. E-tourism websites have unique interactive and multimedia qualities with the potential to create experiences similar to a product trial. In total, invitation messages were mailed to 2000 members of the Taiwanese backpackers' forum, of which 256 were returned completed. The findings of this study indicate that the mission of excellence in travel services will be an important strategy in e-tourism website design; an e-tourism website that allows quick navigation is likely to attract travellers. Moreover, it is important that governments adopt a knowledge-sharing culture in their relationship strategy by developing a competence for building long-term relationships with tourists.
Local action of long‐range repressors in the Drosophila embryo

Previous studies have identified two corepressors in the early Drosophila embryo: Groucho and dCtBP. Both proteins are recruited to the DNA template by interacting with short peptide motifs conserved in a variety of sequence‐specific transcriptional repressors. Once bound to DNA, Groucho appears to mediate long‐range repression, while dCtBP directs short‐range repression. The short‐range Krüppel repressor was converted into a long‐range repressor by replacing the dCtBP interaction motif (PxDLSxH) with a Groucho motif (WRPW). The resulting chimeric repressor causes a different mutant phenotype from that of the native Krüppel protein when misexpressed in transgenic embryos. The different patterning activities can be explained on the basis of long‐range silencing within the hairy 5′ regulatory region. The analysis of a variety of synthetic transgenes provides evidence that Groucho‐dependent long‐range repressors do not always cause the dominant silencing of linked enhancers within a complex cis‐regulatory region. We suggest a ‘hot chromatin’ model, whereby repressors require activators to bind DNA.
Genetic diversity across a vertebrate species’ range: a test of the central–peripheral hypothesis

Although it has been long presumed that population genetic variability should decrease as a species’ range margin is approached, results of empirical investigations remain ambiguous. Sampling strategies employed by many of these studies have not adequately sampled the entire range. Here we present the results of an investigation of population genetic diversity in a vertebrate species, the Italian agile frog, Rana latastei, sampled comprehensively across its entire range. Our results show that genetic variability is not correlated with population location with respect to the range periphery. Instead, the model that best explains the genetic variation detectable across the range is based on an east‐to‐west gradient of declining diversity. Although we cannot state definitively what has led to this distribution, the most likely explanation is that the range of Rana latastei expanded postglacially from a Balkan refugium.
Exploring Value Cocreation in Relationships Between an ERP Vendor and its Partners: A Revelatory Case Study

Contemporary business organizations are increasingly turning their attention to jointly creating value with a variety of stakeholders, such as individual customers and other business organizations. However, a review of the literature reveals that very few studies have systematically examined value cocreation within business-tobusiness (B2B) contexts. Using a revelatory case study of the relationship between an ERP vendor with a global reputation and its partners, and informed by the resource-based view of the firm and related theoretical perspectives, we develop an understanding of value cocreation in B2B alliances associated with selling, extending, and implementing packaged software, specifically ERP systems. Our study reveals that there are different mechanisms underlying value cocreation within B2B alliances, and also points to several categories of contingency factors that influence these mechanisms. In addition to providing insights about the phenomenon of cocreation itself, the study contributes to the stream of packaged software literature, where the implications of value cocreation in alliances between packaged software vendors and their partners for the client organizations have not been sufficiently explored.
Recent applications of capillary isoelectric focusing

After the advent of capillary isoelectric focusing (CIEF) in the 80's several approaches have been developed in order to use the technique in routine analyses. The recent years showed an extensive increase in the applications of this technique employing its exceptionally high‐resolution power. Methodological improvements, as well as hyphenation with other electrophoretic and chromatographic separation procedures, proved the versatility of CIEF in studies of clinically important proteins, recombinant product, cell lysates and other complex mixtures. The combination of CIEF with mass spectrometry detection is one of the major challenges for studying proteomics. This review collected the recent applications of CIEF including innovations in the experimental setup, remedies for the presence of salts in samples, calibration of the pH gradient, carrier ampholyte‐free isoelectric focusing, the progress in micropreparation, two‐dimensional separations, etc.
Cyclin D1 Genetic Heterozygosity Regulates Colonic Epithelial Cell Differentiation and Tumor Number in ApcMin Mice

ABSTRACT Constitutive β-catenin/Tcf activity, the primary transforming events in colorectal carcinoma, occurs through induction of the Wnt pathway or APC gene mutations that cause familial adenomatous polyposis. Mice carrying Apc mutations in their germ line (ApcMin ) develop intestinal adenomas. Here, the crossing of ApcMin with cyclin D1−/− mice reduced the intestinal tumor number in animals genetically heterozygous or nullizygous for cyclin D1. Decreased tumor number in the duodenum, intestines, and colons of ApcMin /cyclin D1+/− mice correlated with reduced cellular proliferation and increased differentiation. Cyclin D1 deficiency reduced DNA synthesis and induced differentiation of colonic epithelial cells harboring mutant APC but not wild-type APC cells in vivo. In previous studies, the complete loss of cyclin D1 through homozygous genetic deletion conveyed breast tumor resistance. The protection of mice, genetically predisposed to intestinal tumorigenesis, through cyclin D1 heterozygosity suggests that modalities that reduce cyclin D1 abundance could provide chemoprotection.
Dosimétrie de systèmes d’exposition pour l’étude in vivo ou in vitro des interactions des ondes électromagnétiques décimétriques et centimétriques avec le vivant :

Le developpement des nouvelles technologies sans fil n'a fait que renforcer les interrogations face aux eventuels effets deleteres des ondes RF. Ainsi, ce travail contribue a l'etude de l'interaction des ondes RF avec le vivant. L'analyse du couplage entre l'onde electromagnetique et l'animal ou les echantillons biologiques, permet d'evaluer le DAS (W/kg) dans les milieux dielectriques. Ces resultats ont contribue au developpement et a la caracterisation de systemes d'exposition in vitro et in vivo, pouvant etre utilises sur une large bande de frequence, typiquement de 500 MHz a 10 GHz. Les systemes etudies sont bases sur une exposition type champ lointain en chambre anechoique, a l'aide d'une antenne cornet, et d'un systeme biologique : un incubateur pour les etudes in vitro, et une cage pour les etudes in vivo. Une analyse plus precise a deux frequences en particulier, 1800 MHz et 2,45 GHz, a montre la tres forte dependance de la dosimetrie en fonction de la frequence.
Automatic parsing of news video

Video content parsing is possible when one has an a priori model of a video's structure based on domain knowledge. This paper presents work on using domain knowledge to parse content of news video programs. Approaches to locating and identifying frame structure models based on temporal and spatial structure of news video data, along with algorithms to apply these models in parsing news video, have been developed and are presented in detail in this paper. Experimental results are also discussed in detail to evaluate the approaches and algorithms. Finally, proposals for future work are summarized. <<ETX>>
Polarization effect's impact on luminous efficiency in InGaN/AlGaN MQWs LED

polarization effect would form built-in polarization electric filed, leading to the bend of energy band, which influences the radiative recombination rate of the carries. Taking account of the difference of piezoelectric polarization effect of heterogeneous materials in the stress, we used the APSYS module of crosslig to simulate the impact of different polarization charges on luminous efficiency of InGaN/AlGaN MQWs LED, and compared the difference of quantum wells with different heights of energy band in the same proportion of the polarization charges by regulating the component of In. Besides, the paper combined output power, Internal Efficiency, I–V curve, and carrier distribution to discuss the luminous efficiency of InGaN/AlGaN MQWs LED under heterogeneous polarization filed respectively, and the influence of different injection currents on the LED performance.
Churn prediction methodologies in the telecommunications sector: A survey

Predicting customer churn is a critical requirement of many if not all companies dependent on customer subscription services. The telecommunication sector is especially impacted due to the rival competition being very high and since tariff rates are maintained at a lower level. This paper describes the efforts made by researchers to build successful churn prediction models highlighting their special characteristics.
Respective roles of hyaluronidases 1 and 2 in endogenous hyaluronan turnover

We studied the physiologic roles of the hyaluronidase (HYAL) 1 and HYAL2 in hyaluronan (HA) turnover. HA was localized and quantified using HA binding proteins in various tissues of Hyal1–/– and Hyal2–/– mice (knockout mice) as well as control mice. HA MW was determined using gel filtration chromatography. HA endocytosis in liver nonparenchymal cells (NPCs) was quantified in vivo. Both Hyal1 and Hyal2 knockout mice showed HA accumulation in peripheral tissues without changes in HA MW distribution. HYAL2 deficiency induced buildup of very high MW (>;3.106 Da) HA in lymph and serum with severe lymph node distortion. The lack of HYAL2 also impaired high MW HA endocytosis by liver NPCs. HYAL1 deficiency led to a moderate increase in serum HA concentration without changes in HA MW distribution and to HA overload of liver NPCs. Wild‐type C57BL/6 mice served as controls. In HA injection experiments, saline‐injected mice served as additional controls. We conclude that: 1) HYAL1 and HYAL2 are both needed for tissue HA catabolism; 2) HYAL2 is required for high MW HA clearance in lymph nodes and plasma and for HA endocytosis by liver NPCs; and 3) the main role of HYAL1 is HA degradation within liver NPCs. —Bourguignon, V. , Flamion, B. Respective roles of hyaluronidases 1 and 2 in endogenous hyaluronan turnover. FASEB J. 30, 2108–2114 (2016). www.fasebj. org
Human teacher in intelligent tutoring system: a forgotten entity

Intelligent tutoring systems (ITSs) have not yet proved very successful and one major reason seems to be that research on ITSs has largely failed to recognize the role of the teacher in the ITS design process. The paper discusses an ongoing project at Massey University, which is incorporating a 'Human Teacher Model' in an ITS prototype to teach Japanese. The project identifies the teacher attributes and formulates them into a coherent teacher model. They are then applied in the prototype, which offers adaptivity to the teacher at two levels: presentation based adaptivity and navigation based adaptivity. We believe this work will substantially improve the applicability of ITSs in real academic environments.
Source separation using a criterion based on second-order statistics

It is often assumed that blind separation of dynamically mixed sources cannot be done with second-order statistics. It is shown that separation of dynamically mixed sources indeed can be performed using second-order statistics only. A criterion based on second-order statistics for the purpose of separating crosswise mixtures is stated. The criterion is used in order to derive a gradient-based separation algorithm, as well as a Newton-type separation algorithm. The uniqueness of the solution representing the separation is also investigated. This reveals that (1) the channel system is parameter identifiable under weak conditions, and (2) if the sources have the same color, there exists at most two solutions. The local convergence behavior of the proposed algorithm is studied and reveals a sufficient condition for local convergence. Furthermore, the estimates of the channel system are shown to be consistent or to locally minimize the criterion.
Citrate and Alkaline Phosphatase During Transformation of Fibroblasts by the Matrix and Minerals of Bone 1

Summary Allogeneic transplantation of demineralized rat bone initiates a chain reaction in responding fibroblasts; alkaline phosphatase and, later, citric acid increase to high levels. The chain reaction is not evoked by bone minerals; instead vast numbers of multinucleate osteoclastic giant cells form around the grafts with high levels of citric acid without an increase of alkaline phosphatase.
An energy efficient hardware multithreading scheme for mobile ray tracing

We present an energy-efficient multithreading architecture for mobile ray tracing, which constitutes a dynamic reordering of the rays in input buffer according to the results of cache accesses. Unlike to the previous works, our architecture is cost-effective, because it does not need dedicated memory for storing threads, and is also energy-efficient, because it does not bypass the invalidated rays. Simulation results show that our architecture is a potential graphics solution for low-power ray tracing hardware as it provides a better performance-energy efficiency up to 5.5 times that of previous architectures.
Growth of III-V Nanowires and Nanowire Heterostructures by Metalorganic Chemical Vapor Deposition

We have investigated the structural and optical properties of III-V nanowires, and axial and radial nanowire heterostructures, fabricated by metalorganic chemical vapor deposition. In addition to binary nanowires, such as GaAs, InAs, and InP, we have demonstrated ternary InGaAs and AlGaAs nanowires. Core-shell nanowires consisting of GaAs cores with AlGaAs shells, and core-multishell nanowires with alternating shells of AlGaAs and GaAs, exhibit strong photoluminescence. Axial segments of InGaAs have been incorporated within GaAs nanowires to form GaAs/InGaAs nanowire superlattices. We have developed a two-temperature growth procedure to optimize nanowire morphology. An initial high temperature step promotes nucleation and epitaxial growth of straight (111)B-oriented nanowires. Lower temperatures are employed subsequently, to minimise radial growth.
Efficacy of the Young Women's CoOp: An HIV Risk-Reduction Intervention for Substance-Using African-American Female Adolescents in the South

ABSTRACT HIV/sexually transmitted infection (STI) risk-reduction interventions are needed to address the complex risk behaviors among African-American female adolescents in disadvantaged communities in North Carolina. In a two-group randomized trial, we reached 237 sexually active, substance-using African-American female adolescents, to test a risk-reduction intervention, the Young Women's CoOp (YWC), relative to a nutrition control. In efficacy analyses adjusting for baseline condom use, at three-month follow-up participants in the YWC were significantly less likely to report sex without a condom at last sex relative to control. There were mixed findings for within-group differences over follow-up, underscoring the challenges for intervening with substance-using female youths.
High-Resolution Crystal Structure of RpoS Fragment Including a Partial Region 1.2 and Region 2 from the Intracellular Pathogen Legionella pneumophila

Legionella pneumophila RpoS (LpRpoS), an alternative sigma factor of RNA polymerase (RNAP), is essential for virulence and stress resistance. To investigate the mechanism of RpoS in the intracellular pathogen L. pneumophila, we determined the high-resolution crystal structure of the LpRpoS 95–195 containing a partial region 1.2 and region 2. The structure of LpRpoS 95–195 reveals that the conserved residues are critical for promoter melting, DNA and core RNAP binding. The differences in regulatory factor binding site between Escherichia coli RpoS and LpRpoS suggest that LpRpoS may employ a distinct mechanism to recruit alternative regulatory factors controlling transcription initiation.
An improved method for examining meiotic chromosomes in Musa L.

Meiotic studies in Musa L. have been hampered by: 1) time-consuming efforts required to find the correct stages of cell division; 2) rigidity ofthe microsporocyte cell wall that makes preparation of smears difficult; and 3) poor staining of prophase chromosomes. This study describes an improved technique to examine meiosis in Musa. The procedure involves dissection of microsporocytes from the anthers, centrifugation to obtain large number of microsporocytes, enzymatic digestion of cell walls and treatment of cells with acetic-alcohol that results in spontaneous bursting of the protoplasts and release of chromosomes. Previous meiotic studies in Musa used acetocarmine that stained only highly condensed metaphase and anaphase chromosomes easily but not the relaxed prophase stages. In this study, we found that silver nitrate, Giemsa and Leishmans' stain were also effective for staining Musa chromosomes. Silver staining was most effective for the less contracted prophase chromosomes. By providing an improved procedure to examine all the meiotic stages in Musa, this technique will be useful to develop pachytene karyotypes, characterize new hybrids and identify nuclear restitution mechanisms that are important in breeding schemes.
Seasonal leaf dimorphism in Potentilla argentea L. var. tenuiloba (Jord.) Sw. (Rosaceae)

Abstract A pattern of seasonal changes in the morphological and anatomical leaf traits is reported for Potentilla argentea L. var. tenuiloba (Jord.) Sw. of temperate-climate areas in central Poland. Leaf area, perimeter, dry mass and lamina thickness were measured in summer and autumn leaves of the same individuals. Dissection index, density and specific leaf area were calculated. Significant differences were obtained between summer and autumn leaves obtained from the same individuals. The shapes of leaves of the P. argentea plants varied in the extent of incisions between teeth and the number of teeth on the margins. Fully expanded autumn leaves were larger in weight and area than summer leaves. The autumn leaves had lower leaf mass area and density than the summer leaves. Leaves were covered by considerably more trichomes in summer than in autumn. Anatomical leaf structure also changed with the season. The summer leaves were thick, with a lower number of chloroplasts in the cells of the compact mesophyll. Autumn leaves are thinner, with loose mesophyll. Chloroplasts from the two seasonal types of leaves differ on account of starch grain and plastoglobule content. The large variations in leaf density and thickness recorded here confirm great differences in cell size and amounts of structural tissue within species. Seasonal dimorphism of leaves may result from seasonal drought or from seasonality in leaf production, leaf fall or incoming solar radiation. Within this new context of seasonal leaf dimorphism, P. argentea can still be distinguished by the absence of deeply divided leaflets on late-formed leaves. The results confirmed the presence of several morpho- anatomical leaf traits of P. argentea that allow the species to adapt to environmental seasonal conditions.
Single chip 4/spl times/500 Mbaud CMOS transceiver

This CMOS chip replaces a 72-wire interface with 4 serial, duplex links, for relief of interconnect congestion in applications such as large switching systems. The design supports transmission at 1.6 Gb/s per direction in full-duplex mode and provides the user with a transparent interface. The data source provides fixed-length synchronous packets segmented into 4 parallel bytes along with parity and flag bits. The packet size can be programmed up to 4/spl times/64 B with a parameter loaded from an external controller. Data packets can he transmitted contiguously. During idle periods that are marked by a flag, the circuit generates and transmits fill packets, which start with a non-data Comma character. The Comma marks both byte and packet boundaries on a serial link. The Fill packets carry an idle sequence or diagnostic and control information such as Not Operational, Remote Wrap, or Unwrap. Each link carries 400 Mb/s, corresponding to 500 Mbaud after 8 B/10 B encoding.
Matlab/Simulink model of solar PV array with perturb and observe MPPT for maximising PV array efficiency

The efficiency of commercially available solar PV module is very low in the range of 10-25 % In order to maximise their operating efficiency and to reduce installation cost, maximum power point trackers (MPPT) are coupled with the system. The output power of solar PV depends on solar irradiance level, incident angle, temperature and load current which all contribute to non-linear varying I-V characteristic during operation. MPPT ensures that a PV cell, module or panel is operated and maintained at the reference voltage that correspond to maximum power point for particular operating solar irradiance and cell temperature. A 220 W solar PV panel is modelled in Matlab-Simulink to study solar PV characteristics under different solar irradiance and working cell temperature. A Perturb & Observation MPPT technique incorporated for maximising the output power of the PV panel shows that the percentage deviation from the ideal PV power is about 10 % for different operating solar irradiance and cell temperature.
Development of a New Magnetizing Fixture for the Permanent Magnet Brushless DC Motors to Reduce the Cogging Torque

Excitation frequencies of cogging torque in a brushless dc motor are composed of the fundamental and its harmonics of the least common multiple of the poles and slots in ideal brushless dc motors, and the slot harmonics of the multiple of slot number due to the manufacturing errors. One of the main sources of the slot harmonics is the uneven magnetization of the permanent magnet. We investigated numerically and experimentally the uneven magnetization of permanent magnet due to the design of the magnetizing fixture and its effect on the harmonics of cogging torque. We proposed a new design of the magnetizing fixture to uniformly magnetize the permanent magnet in such a way to reduce both the fundamental harmonic and the slot harmonics of cogging torque. The slot harmonics and the fundamental harmonic of cogging torque of a brushless dc motor can be suppressed by including the back-yoke and the slots of the teeth in the magnetizing fixture, respectively.