Miracle-dz/UniFAR-FTUs huggingface dataset:
Online brand community: through the eyes of Self-Determination Theory

– The purpose of this paper to use Self-Determination Theory (SDT) to explain the online brand community (OBC) identity internalization process through brand website interactivity. Secondary purpose of the research is to explore the role of several individual difference factors and brand-specific constructs in predicting brand website interactivity. , – This study proposes the OBC motivation development continuum of brand website interactivity. Thus, a national panel was collected by a reputable online survey firm and a structural equation model was used to test the proposed model. , – The authors examined four brand-related antecedents and mediators (brand engagement in self-concept, susceptibility of normative influence, opinion leadership, and consumer innovativeness) and found evidence of the differing roles that brand engagement in self-concept and purposive motives play as mediators to brand website interactivity. , – Marketing managers can use the proposed model as a useful tool for understanding ways to target and motivate segment specific consumers in ways that will increase the effectiveness of managers’ OBC building strategies. , – This study utilized SDT to explain the internalization process of brand website interactivity. Further, several individual difference factors were explored as antecedents and mediators of brand website interactivity.
The flux-dependent amplitude of broadband noise variability in X-ray binaries and active galaxies

Standard shot-noise models, which seek to explain the broadband noise variability that characterizes the X-ray light curves of X-ray binaries and active galaxies, predict that the power spectrum of the X-ray light curve is stationary (i.e. constant amplitude and shape) on short time-scales. We show that the broadband noise power spectra of the black hole candidate Cyg X-1 and the accreting millisecond pulsar SAX J1808.4-3658 are intrinsically non-stationary, in that rms variability scales linearly with flux. Flux-selected power spectra confirm that this effect is due to changes in power-spectral amplitude and not shape. The light curves of three Seyfert galaxies are also consistent with a linear relationship between rms variability and flux, suggesting that it is an intrinsic feature of the broadband noise variability in compact accreting systems over more than six decades of central object mass. The rms variability responds to flux variations on all measured time-scales, raising fundamental difficulties for shot-noise models which seek to explain this result by invoking variations in the shot parameters. We suggest that models should be explored where the longest time-scale variations are fundamental and precede the variations on shorter time-scales. Possible models which can explain the linear rms-flux relation include the fractal break-up of large coronal flares, or the propagation of fluctuations in mass accretion rate through the accretion disc. The linear relationship between rms variability and flux in Cyg X-1 and SAX J1808.4-3658 is offset on the flux axis, suggesting the presence of a second, constant-flux component to the light curve which contributes ~25 per cent of the total flux. The spectrum of this constant component is similar to the total spectrum, suggesting that it may correspond to quiet, non-varying regions in the X-ray emitting corona.
Identifying Climatic Controls on Ring Width: The Timing of Correlations between Tree Rings and NDVI

The authors examine the effects of latitude and life history on the timing of relationships between satellite measures of normalized difference vegetation index (NDVI) and ground-based measures of tree-ring width in forests at mid- and high latitudes in the Northern Hemisphere. Results indicate a correlation between NDVI and tree rings over the entire growing season for all areas analyzed. For sites south of 40°N, a correlation appears in early spring and late fall while a correlation appears during summer months north of 40°N. For conifers, the correlation appears in summer while deciduous trees show the
"Don't Have Sex, You'll Get Pregnant and Die!": Female University Students' Experiences with Abstinence-Only Education

OF THESIS “DON’T HAVE SEX, YOU’LL GET PREGNANT AND DIE! ”: FEMALE UNIVERSITY STUDENTS’ EXPERIENCES WITH ABSTINENCE-ONLY EDUCATION Based on the various changes in sexual education, many schools throughout the United States still teach abstinence-only education. There is a plethora of literature on the effectiveness of sexual education programs as well as adolescent sexual practices. However, there is a deep gap in literature on students' perspectives of their sexual education and the possible effects it has on their experiences while in college. Therefore, this phenomenological study aims to explore and describe the essence of the experience female university students have regarding the abstinence-only education they received during secondary schooling. The informants (n=12) were 19-22 year old female university undergraduate students who received abstinence-only education within their middle and/or high school. Data was collected through semi-structured interviews. Data was analyzed through a phenomenological approach where themes and sub-themes emerged. The results from this study indicate that no matter what the participants’ personal beliefs and values surrounding sex are, their abstinence-only sexual education did not teach them adequate information for their secondary school years nor to prepare them for their time in a university setting.
Wikipedia and its Network of Human and Automated Authors from a Social Network Perspective

Online social networks (OSNs) become more and more important in today’s social and business life. Therefore, considerable effort is put in research to gain a deeper knowledge of the development of these networks and their dynamics. However, most of the existing literature is based on very limited subsets of the network data, which is often filtered by the OSN operator providing the data or biased by the crawling mechanisms used to obtain the data. This makes it difficult to analyze the temporal evolution of OSNs based on complete data. For studying temporal evolution and time dynamics we investigate the dynamics of the publicly available collaboration network of the Wikipedia authors as an example for an OSN-like network. The authors are distinguished between human authors contributing to the articles and automated scripts, so called bots, which complete specialized tasks like spell-checking. In particular, we study the temporal evolution of this network since its beginning and demonstrate that it exhibits prominent similarities to well known social networks such as the small-world phenomenon. This indicates that the insights gained from the analysis of Wikipedia’s collaboration network might be transferable to social networks in general. 1
Function of SSA Subfamily of Hsp70 Within and Across Species Varies Widely in Complementing Saccharomyces cerevisiae Cell Growth and Prion Propagation

Background The cytosol of most eukaryotic cells contains multiple highly conserved Hsp70 orthologs that differ mainly by their spatio-temporal expression patterns. Hsp70s play essential roles in protein folding, transport or degradation, and are major players of cellular quality control processes. However, while several reports suggest that specialized functions of Hsp70 orthologs were selected through evolution, few studies addressed systematically this issue. Methodology/Principal Findings We compared the ability of Ssa1p-Ssa4p from Saccharomyces cerevisiae and Ssa5p-Ssa8p from the evolutionary distant yeast Yarrowia lipolytica to perform Hsp70-dependent tasks when expressed as the sole Hsp70 for S. cerevisiae in vivo. We show that Hsp70 isoforms (i) supported yeast viability yet with markedly different growth rates, (ii) influenced the propagation and stability of the [PSI+] and [URE3] prions, but iii) did not significantly affect the proteasomal degradation rate of CFTR. Additionally, we show that individual Hsp70 orthologs did not induce the formation of different prion strains, but rather influenced the aggregation properties of Sup35 in vivo. Finally, we show that [URE3] curing by the overexpression of Ydj1p is Hsp70-isoform dependent. Conclusion/Significance Despite very high homology and overlapping functions, the different Hsp70 orthologs have evolved to possess distinct activities that are required to cope with different types of substrates or stress situations. Yeast prions provide a very sensitive model to uncover this functional specialization and to explore the intricate network of chaperone/co-chaperone/substrates interactions.
Adapting Event Embedding for Implicit Discourse Relation Recognition

Predicting the sense of a discourse relation is particularly challenging when connective markers are missing. To address this challenge, we propose a simple deep neural network approach that replaces manual feature extraction by introducing event vectors as an alternative representation, which can be pre-trained using a very large corpus, without explicit annotation. We model discourse arguments as a combination of word and event vectors. Event information is aggregated with word vectors and a Multi-Layer Neural Network is used to classify discourse senses. This work was submitted as part of the CoNLL 2016 shared task on Discourse Parsing. We obtain competitive results, reaching an accuracy of 38%, 34% and 34% for the development, test and blind test datasets, competitive with the best performing sys-tem on CoNLL 2015.
Comparative study of color histograms as global feature for Image Retrieval

Color histograms are one of the earliest and best known image features used in Content-Based Image Retrieval (CBIR). There is a wealth of scientific work on this topic. However, different papers vary in the specific ways of determining histograms and distance between them. In this paper authors attempt to classify various types of histograms used in literature and compare them using contemporary datasets and metrics for evaluation. Histograms are compared based on their retrieval performance as well as resource usage.
Respiratory arrest and oversedation in an adolescent given intramuscular clonazepam for rapid tranquillization

Many young people in forensic adolescent units require intramuscular medication for rapid tranquillization. The efficacy and safety of the medications used is not well reported in this age group. Here we report a case of a 14-year-old girl experiencing severe oversedation and respiratory compromise on two occasions following intramuscular clonazepam.
Using Social Determinants of Health to Link Health Workforce Diversity, Care Quality and Access, and Health Disparities to Achieve Health Equity in Nursing

It is widely accepted that diversifying the nation's health-care workforce is a necessary strategy to increase access to quality health care for all populations, reduce health disparities, and achieve health equity. In this article, we present a conceptual model that utilizes the social determinants of health framework to link nursing workforce diversity and care quality and access to two critical population health indicators—health disparities and health equity. Our proposed model suggests that a diverse nursing workforce can provide increased access to quality health care and health resources for all populations, and is a necessary precursor to reduce health disparities and achieve health equity. With this conceptual model as a foundation, we aim to stimulate the conceptual and analytical work—both within and outside the nursing field—that is necessary to answer these important but largely unanswered questions.
Recent Updates on Subcortical Ischemic Vascular Dementia

Vascular dementia (VaD) is a history-laden disease entity that dates back to the 19th century when arteriosclerotic brain atrophy due to hardening of the arteries was perceived as the major cause of senile dementia. Its existence had been overshadowed by the emergence of Alzheimer's disease (AD) in the past century and research on AD dominated the field of dementia. Interest in VaD has been revived in recent years as vascular lesions have been shown to make great contributions to the development of dementia, particularly in the elderly. VaD has now evolved into the concept of vascular cognitive impairment (VCI), which encompasses not only VaD but also AD with cerebrovascular disorder and VCI with no dementia. The concept of VCI is intended to maximize the therapeutic potential in dementia management because the vascular component may be amenable to therapeutic intervention particularly in the early stages of cognitive impairment. Subcortical ischemic vascular dementia (SIVD) is pathologically driven by severe stenosis and the occlusion of small vessels that culminate into white matter ischemia and multiple lacunar infarctions in the subcortical structures. The relatively slow progression of symptoms and clinical manifestations associated with cholinergic deficits often make the differentiation of SIVD from AD difficult. The recent development of in vivo amyloid imaging enabled further pathological breakdown of SIVD into pure SIVD and mixed dementia with subcortical ischemia based on the absence or existence of amyloid pathology in the brain. In this article, the authors reviewed the emerging concepts of VaD/VCI and the clinical manifestations, biomarkers, treatments, and preclinical models of SIVD based on the pathophysiologic mechanisms of the disease.
Physiological responses of three marine microalgae exposed to cypermethrin

The effects of cypermethrin on physiological responses of three typical marine microalgal species Skeletonema costatum (Bacillariophyceae), Scrippsiella trochoidea (Dinophyceae), and Chattonella marina (Raphidophyceae), were investigated by 96‐h growth tests in a batch‐culture system. The 96‐h median inhibition concentrations (IC50) were 71.4, 205, and 191 μg L−1 for S. costatum, S. trochoidea, and C. marina, respectively. Quick and significant physiological responses occurred when algal cells were exposed to cypermethrin, and all biochemical parameters varied significantly within 6‐ or 12‐h exposure. Cypermethrin affected algal growth, protein content, and superoxide dismutase (SOD) activity by stimulation at low concentrations (1, 5 μg L−1) and inhibition at high concentrations (>50 μg L−1). A general increase in malondialdehyde (MDA) level was observed in all test groups, which suggested that the toxic effects of cypermethrin were probably exerted through free radical generation. These results suggest that the activation of SOD and promotion of protein at early exposure are important to counteract the oxidative stress induced by cypermethrin, and the inactivation of SOD may be crucial to the growth inhibition of microalgae by cypermethrin. © 2011 Wiley Periodicals, Inc. Environ Toxicol, 2012.
Event-Triggered Control for Nonlinear Systems Under Unreliable Communication Links

This paper is concerned with the event-triggered $H_{\infty }$ control problem for discrete-time nonlinear networked control systems with unreliable communication links. First, an event-triggered scheme is proposed to determine whether the sampled data should be released into the network or not. Second, when the released data is transmitted in the network, a Bernoulli process is employed to model the phenomenon of data losses. Third, considering the instants at which the sampled data is not released or data losses occur, a new random process is first developed to model the input data sequence of the controller under the effect of the buffer. Consequently, a novel method is presented to address the stability analysis and control synthesis problems based on the polynomial fuzzy model approach. Finally, some simulation results are given to illustrate the effectiveness of the proposed method.
Bosons in a two-dimensional bichromatic quasiperiodic potential: Analysis of the disorder in the Bose-Hubbard parameters and phase diagrams

Experimental realizations of disorder in optical lattices generate a distribution of the Bose-Hubbard (BH) parameters, like on-site potentials, hopping strengths, and interaction energies. We analyze this distribution for bosons in a bichromatic quasi-periodic potential by determining the generalized Wannier functions and calculating the corresponding BH parameters. Using a local mean-field cluster analysis, we study the effect of the corresponding disorder on the phase diagrams. We find a substantial amount of disorder in the hopping strengths, which produces strong deviations from the phase diagram of the disordered BH model with solely random on-site potentials.
An Efficient Multilevel Coverage Scheme in Mobile Sensor Networks

We focus on the coverage problem in the mobile sensor network, where each node is capable of movement. Most of the prior schemes pursue coverage by uniformizing the node density or internodal distance over the area of interest. In this paper, we first argue that the uniformizing schemes are inefficient to achieve the multi-level coverage due to the phenomenon we call geometric anomaly, and that the anomaly can be solved by layering. Then, we design a distributed layering scheme, where the layers are built by nodes' local decision and the imbalance of the layer size is minimized by regrouping. Simulation results show that our scheme achieves the required multilevel coverage with a significantly reduced number of nodes.
TESTING TECHNIQUES FOR ESTIMATING IMPLIED RNDS FROM THE PRICES OF EUROPEAN-STYLE OPTIONS

This paper examines two approaches to estimating implied risk-neutral probability density functions from the prices of European-style options. It sets up a monte carlo test to evaluate alternative techniques’ ability to recover simulated distributions based on Heston’s (1993) stochastic volatility model. The paper tests both for the accuracy and stability of the estimated summary statistics from RNDs. We find that a method based on interpolating the volatility smile outperforms the commonly used parametric approach that uses a mixture of lognormals.
Peritoneal dialysis fluids can alter HSP expression in human peritoneal mesothelial cells.

BACKGROUND Acute exposure of mesothelial cells to peritoneal dialysis fluid (PDF) has been shown not only to result in injury but also to induce cytoprotective heat shock proteins (HSP). The aim of the present study was to evaluate the expression of HSP in a more chronic in vitro PDF exposure system, searching for a role of glucose degradation products (GDP). METHODS Human peritoneal mesothelial cells (HPMC) were chronically incubated in filter- or heat-sterilized PDF (mixed 1:1 with cell culture medium), or in control cell culture medium. After incubation periods of 1, 3 and 10 days, cell extract was assessed for Ezrin, Hsp27 and Hsp72, and supernatant for IL-6 and IL-8. After 24-h exposure to the GDP 3.4-di-deoxyglucosone-3-ene (3.4-DGE), HPMC were assessed for expression of Hsp27 and Hsp72, and for release of LDH, IL-6 and IL-8. RESULTS In vitro PDF exposure for more than 1 day resulted in reduced cell mass, lower expression of the epithelial marker Ezrin and depressed cellular levels of both HSP, associated with increased IL-6 and IL-8 release. These effects occurred earlier and stronger with heat-sterilized than with filter-sterilized PDF. Exposure of HPMC to 3.4-DGE resulted in suppression of HSP, and increased release of LDH, IL-6 and IL-8. CONCLUSION Our data show that GDP (dys)regulate the mesothelial cell stress response. This was associated with reduced cell mass, loss of the epithelial phenotype and sterile cellular inflammation following extended exposure to heat-sterilized PDF. Toxic effects of PDF might thus be extended to reduced mesothelial cell stress responses.
Does preoperative irradiation increase the rate of surgical complications in carcinoma of the head and neck?: A radiation therapy oncology group report

This is a comparison of the rate of surgical complications in a group of patients with advanced but operable carcinoma of the head and neck who underwent surgery after preoperative radiotherapy (5000 rad in five weeks, 200 rad fractions, directed to the primary tumor area and neck) versus another group operated without prior irradiation. Both groups of patients formed part of a randomized prospective multiinstitutional trial of the Radiation Therapy Oncology Group (73–03). Of 229 patients who had planned operations, 88 (38%) developed some degree of surgical complications, and in 28 (12%) the complications were rated as severe. The most frequently reported complications were delayed healing and fistula formation each occurring in approximately one‐fourth of each of the two treatment groups. Carotid blow‐out occurred in 5% or less of the cases. No significant statistical difference between treatment groups was noted for the overall complication rate or specific type of surgical complications. A trend was noted towards more complications in the preoperative group for patients with lesions in the oropharynx and supraglottic larynx. However, an opposite trend towards more complications in the no prior irradiation group was observed among patients with lesions in the oral cavity and hypopharynx. Surgical mortality and postoperative hospital stay were not significantly different between treatment groups. We conclude that preoperative irradiation for carcinoma of the head and neck, with the stated dose, followed by surgery in 4–6 weeks, does not substantially increase the rate of overall or specific type of surgical complications, surgical mortality or hospital stay versus those patients operated without prior irradiation.
A comparison of gingival crevice pH of dental students and patients with gingivitis.

Eight dental students (designated Group A) and 8 patients with clinical gingivitis (group B) were the sub­ ject o f this experiment. The average gingival index in Group A was less than one and in Group B it was greater than two. Using an antimony micro-electrode measurements o f supragingival plaque pH and gingi­ val crevicular pH were made. These readings were analysed by comparing their means directly, and by comparison with gingival indices and crevicular depths. The results obtained indicated no significant variations between the 2 groups. Within the groups there were significant differences in crevice pH according to pocket depth and degree o f in­ flammation. There was a general decrease in p H with increasing pocket depth. Group B showed a gradient of pH increasing with increasing inflammation. OPSOMMING
Chlorido[N′-(2-oxidobenzilidene)acetohydrazide-κ2 O,N′,O′]copper(II) dihydrate

In the title complex, [Cu(C9H9N2O2)Cl]·2H2O, prepared from the Schiff base ligand N′-(2-hydroxybenzilidene)acetohydrazide and copper(II) chloride, the CuII atom is coordinated by two O atoms and one N atom from the ligand and by a Cl atom in a distorted square-planar geometry. The two donor O atoms of the tridentate Schiff base ligand are in a trans arrangement. In the crystal structure, there is an extensive intermolecular hydrogen-bonding network; N—H⋯O, O—H⋯O and O—H⋯Cl interactions, involving the uncoordinated water molecules, lead to the formation of a two-dimensional network parallel to the ab plane.