Miracle-dz/UniFAR-FTUs huggingface dataset:
The role of interpersonal trust and vigilance in the process of entrepreneurial opportunity recognition using social networks

This research examines the roles that an entrepreneurs dispositions to interpersonal trust, and vigilance play in the process of opportunity recognition. An entrepreneurs use of social networks as a resource in opportunity recognition is also examined. The basis of this investigation was an empirical study of information and communication technology (ICT) entrepreneurs in Queensland, Australia. A series of twelve hypotheses were developed and tested in this research. Despite a modest sample size support was found for six of the hypothesised relationships. An entrepreneurs disposition to both trust and vigilance were found effect the outcomes of their opportunity identification behaviours. A disposition to excess vigilance inhibited the development of entrepreneurial opportunities. While, an extended social network and a trusting disposition were seen to facilitate the development of entrepreneurial opportunities.
Long-Term Stability of the Wechsler Intelligence Scale for Children-Third Edition among Demographic Subgroups: Gender, Race/Ethnicity, and Age

Long-term stability of the Wechsler Intelligence Scale for Children-Third Edition was investigated separately across gender, race/ethnicity, and age subgroups. Participants were 642 students from 33 states evaluated twice for special education eligibility over a mean test-retest interval of 2.83 years. Gender, race/ethnicity, and age produced few or no differential effects on long-term stability coefficients. Most of the demographic subgroup stability coefficients for VIQ, PIQ FSIQ VCI, and POI scores demonstrated satisfactory long-term stability. However, stability coefficients for FDI, PSI, and VIQ-PIQ discrepancy scores were not adequate. Mean differences from first testing to second testing were either not statistically significant or not clinically meaningful for all groups, except Hispanic/Latino youths. Analysis of individual change scores indicated that only the FSIQ was sufficiently stable for use with individual students. Results extended those of Canivez and Watkins (1998), supporting long-term stability for the WISC-III among most demographic subgroups studied.
Transcriptional Regulation of Human Hydroxysteroid Sulfotransferase SULT2A1 by LXRα

The nuclear receptor liver X receptor (LXR) plays an important role in the metabolism and homeostasis of cholesterol, lipids, bile acids, and steroid hormones. In this study, we uncovered a function of LXRα (NR1H3) in regulating the human hydroxysteroid sulfotransferase SULT2A1, a phase II conjugating enzyme known to sulfonate bile acids, hydroxysteroid dehydroepiandrosterone, and related androgens. We showed that activation of LXR induced the expression of SULT2A1 at mRNA, protein, and enzymatic levels. A combination of promoter reporter gene and chromatin immunoprecipitation assays showed that LXRα transactivated the SULT2A1 gene promoter through its specific binding to the −500- to −258-base pair region of the SULT2A1 gene promoter. LXR small interfering RNA knockdown experiments suggested that LXRα, but not LXRβ, played a dominant role in regulating SULT2A1. In primary human hepatocytes, we found a positive correlation between the expression of SULT2A1 and LXRα, which further supported the regulation of SULT2A1 by LXRα. In summary, our results established human SULT2A1 as a novel LXRα target gene. The expression of LXRα is a potential predictor for the expression of SULT2A1 in human liver.
Bullying experiences of individuals with visual impairment: the mitigating role of sport participation.

In 2007, the National Institute of Health published a study indicating that one in three middle school and high school students have been bullied in the past academic year (U.S. Department of Health and Human Services, National Institute of Health [NIH], 2010). Other findings indicate that whether an individual will be a bully or victim is highly dependent on their status (Prinstein & Cillessen, 2003). Most research on bullying demonstrates that individuals with high status within peer groups are often the aggressors and bullies in school settings (e.g. Cillessen & Mayeux, 2007; Pokhrel, Sussman, Black & Sun, 2010; Prinstein & Ciilessen, 2003). Certain extracurricular activities, such as high profile sports, are linked to achievement of high status; participation in some activities, such as band or drama, have been linked to lower-status individuals (Peguero, 2008). Other attributes that have been found to be linked with lower status are persons of low socio-economic status, poor academic performance, individuals who are deemed unattractive, and those with disabilities (Caravita, Di Blasio, & Samivalli, 2009; Farmer, Irvin, Leung, Hall, Hutchins, & McDonough, 2010; Wilcox, Tillyer, & Fisher, 2009).
Genetic polymorphisms of matrix metalloproteinase 12 and 13 genes are implicated in endometriosis progression.

BACKGROUND Matrix metalloproteinases (MMPs) may contribute to endometriosis. We tested whether eight functional polymorphisms of these genes could modify the risk of endometriosis. METHODS In this case-control study, 227 endometriosis and 241 controls were genotyped for MMP1 -1607 1G/2G, MMP2 -1575 G/A (MMP2.1), -1306 C/T (MMP2.2), MMP3 -1612 5A/6A, MMP7 -153 C/T (MMP7.1), -181 A/G (MMP7.2), MMP12 -82 A/G and MMP13-77 A/G. Association between MMP genotypes and superficial (SUP), deep infiltrating (DIE) and endometriomas (OMA) was tested for each polymorphism separately, using unconditional logistic regression and then for combined genotypes, using the combination test. RESULTS When considering all cases, MMP2 polymorphisms were found to be significant, mainly due to DIE (P = 0.023). A small difference between SUP and controls was found for MMP7.2 (P = 0.032) and MMP12 (P = 0.035), in the absence of correction for multiple testing. Using the combination test, the best association when comparing SUP with controls was obtained for MMP12-MMP13 (P = 0.004) for the combined genotype A/G-A/A (odds ratio = 27.60, 95% confidence interval: 2.80-272.40). CONCLUSIONS These data show a potential role for MMP12 -82 A/G and MMP13 -77 A/G combined polymorphisms in superficial endometriosis. As no association was found with deep infiltrating endometriosis, this combination of polymorphisms might protect from a more in-depth penetration of tissues.
Fixed Point SVD Computation Error Characterization and Performance Lossses in MIMO Systems

This paper is devoted to analyze the error met when computing the singular value decomposition (SVD) of the gain channel matrix in a MIMO communication system and using fixed-point arithmetic for the calculations. The study is focused in the case of the SVD implementation for modulation-mode and power assignment in non-frequency selective MIMO, and M-ary Quadrature Amplitude Modulation (QAM). It is demonstrated that not necessarily all MIMO layers must be activated. The combination of the CORDIC algorithm and look-up tables seems to be a good solution for this task since it can efficiently compute the singular value decomposition. The paper highlights the characterization of computation errors and shows the performance losses produced by the use of approximations in the eigenvalues and eigenvectors calculation, including the effects produced in the power assignment process.
Categories and Subject Descriptors

This paper describes a method to selectively skip running JavaScript code and other heavy-resource consuming features in web pages, in order to make websites adaptable to a larger hardware palette, including low processing power single-core phones and tablets, as well as old desktop and notebook computers with specifications no longer sold today. The goal of this paper is to address the selective skipping of features that are included only for aesthetics, like video backgrounds, animated carousels
A Guess-and-Determine Attack on Reduced-Round Khudra and Weak Keys of Full Cipher

Khudra is a lightweight block cipher designed for Field Programmable Gate Array (FPGA) based platforms. The cipher has an 18-round generalized type-2 Feistel structure with 64-bit block size. The key schedule takes 80-bit master key and produces 32-bit round keys performing very simple operations. In this work, we analyze the security of Khudra. We first show that the effective round key length is 16-bit. By the help of this observation, we improve the 14-round MITM attack proposed by Youssef et al. by reducing the memory complexity from 2 to 2. Also, we propose a new guess-and-determine type attack on 14 rounds where only 2 known plaintext-ciphertext pairs are required to mount the attack in a time complexity of 2 encryption operations. To the best of our knowledge, this is the best attack in the single key model in terms of time, memory and data complexities where the data complexity is equal to the minimum theoretical data requirement. Moreover, we present two observations on differential probabilities of the round function and the symmetric structure of the cipher. We introduce 2 weak keys for the full cipher by exploiting the symmetric structure of the cipher.
Evaluation and Supervision of Co-Teaching

With the continuing increase of inclusive education in our public school classrooms today, there is a great deal of interest in co-teaching teams. Research indicates that administrative support is a critical factor in co-teaching effectiveness. In this study, we explored administrator knowledge and practices related to the supervision and evaluation of co-teachers in inclusive classroom settings. Clear themes that emerged were related to professional preparation and training; expectations and perspectives of co-teaching and inclusive practice; and supporting, supervising, and evaluating co-teachers. The data indicated that there is considerable inconsistency in administrator knowledge and practices and that professional development for administrators is warranted. Implications for practice as well as questions and issues for further research are discussed.
Beckova sebeposuzovací škála depresivity pro dospělé: Recenze metody

Metodu BDI-II mohu proto vřele doporučit jako kvalitní screeningový nástroj k detekci depresivní symptomatiky a potenciálně též subdepresivních stavů. BDI-II navíc svou strukturou umožňuje zaměřit se na respondentovy odpovědi jednotlivě a spolu s ním potenciálně depresivní symptomy během následného rozhovoru flexibilně prozkoumat. Tyto relevantní informace umožňují snáze dosáhnout vhodného diagnostického závěru.
Victim's Response and Alcohol-Related Factors as Determinants of Women's Responses to Violent Pornography

Women suffer a variety of detrimental effects from exposure to violent pornography. This study examined the role of specific situational cues embedded within a violent pornographic story, as well as alcohol consumption and alcohol expectancies, to determine potential mechanisms through which these effects occur. Female social drinkers (N = 123), recruited from the community at large, participated in a between-subjects factorial experiment varying two situational cues—victim response (pleasure vs. distress) and story character beverage consumption (alcohol vs. mineral water)—and participant beverage consumption (alcohol vs. placebo vs. tonic). Results indicate that participants' identification with the victim plays a key role in affecting their responses and that alcohol-related factors appear to exacerbate the negative impact of pornography.
The Manna Plug-In Architecture for Content-based Search of VM Clouds

As cloud computing becomes more popular, collections of virtual machine (VM) images are growing in size. Management of VM collections requires the ability to inspect and search data stored within VM images. We present a plug-in-based architecture, called Manna, for efficiently searching state within VM images through both index and non-index based search. The architecture offers a flexible framework for creating a wide range of new applications that are valuable to both end users and administrators of VM images. We showcase this flexibility through three applications built using Manna’s API: one for searching images, one for searching source code, and one for performing virus scanning. Efficient search for such diverse applications is achieved using two independent mechanisms: plug-ins that are data-type-specific, but independent of data source, and use of VM-specific metadata to shrink the search space of non-indexed data. Trace-driven measurements on our prototype confirm that Manna searches incur low performance overhead.
Motivation Factors in Crowdsourced Journalism: Social Impact, Social Change, and Peer Learning

This article examines participants’ motivation factors to contribute to crowdsourced journalism. Drawing on interviews from cases in which professional journalists used crowdsourcing as a knowledge-search method, the article shows the primary motivation factors are intrinsic, altruistic, and ideological. By sharing information, the crowd wants to contribute to social change and mitigate power and knowledge asymmetries, thus empowering their peers and creating a more informed citizenry. Peer learning and deliberation also drive participation. Participants don’t expect tangible rewards like money; instead, they want to contribute to a better society, and crowdsourced journalism becomes a medium for social change and grassroots advocacy. These motivation factors resemble some of those driving Wikipedia creation. The idea of a more equitable society, created by collective knowledge sharing, also drives the participation in crowdsourced journalism.
New Directions for Measurement in Management Research

Despite its importance, measurement has received less attention in the management sciences than it deserves. Currently, there is an over‐reliance on a narrow set of methods of measuring cognitive, affective, motivational, attitudinal and individual difference constructs that are often of interest in behavioural management research. The authors argue that there is a need to expand the scope of the measurement methods commonly employed by management researchers and that a greater diversity of measurement methods would benefit the field by contributing to theory development and the pursuit of new areas of research. The goals of this review are twofold: (1) to increase awareness among management researchers of the alternative measurement methods that can capture many of the cognitive, affective, motivational, attitudinal and individual difference constructs of interest; (2) to critically evaluate how these methods can and should be used, with a focus on both the strengths and limitations of each method. This review focuses on three classes of measures: physiological and biological measures; experience‐sampling measures; and implicit measures. These measures have had a tremendous impact on the research and theories of other fields such as marketing and economics, despite still being in their infancy. The authors believe that these three classes of measures have the potential to impact the nature and scope of management research and theory as well.
Morphology, Chemistry and Function of the Postpharyngeal Gland in the South American Digger Wasps Trachypus boharti and Trachypus elongatus

Microbes pose severe threats to animals as competitors or pathogens and strongly affect the evolution of life history traits like parental care. Females of the European beewolf Philanthus triangulum, a solitary digger wasp, provision their offspring with paralyzed honeybees and embalm them with the secretion from large postpharyngeal glands (PPG) that contain mainly unsaturated hydrocarbons. This coating changes the physico-chemical properties of the prey surface, causes a reduction of water condensation and retards growth of mold fungi. Here we examined the closely related South American genus Trachypus, which shows a life-history similar to Philanthus. We investigated whether Trachypus spp. also possess PPGs and embalm larval provisions. Using histological methods and 3D reconstructions we show that Trachypus boharti and T. elongatus possess PPGs that are similar to P. triangulum but somewhat smaller. The ultrastructure of the gland epithelium suggests that the gland content is at least partly sequestered from the hemolymph. Chemical analyses using gas chromatography / mass spectrometry revealed that both the cuticle and PPGs of Trachypus contain mainly unsaturated long-chain hydrocarbons. The gland of T. boharti additionally contains long-chain ketones. The hydrocarbons from the PPG of T. elongatus occurred on prey bees excavated from nests in the field but not on conspecific control bees. While the embalming only slightly elevated the amount of hydrocarbons on prey bees, the proportion of unsaturated hydrocarbons, which is crucial for the antifungal effect, was significantly increased. The Trachypus species under study possess PPGs that are very similar to the PPG of P. triangulum with regard to morphology, ultrastructure and chemistry. Moreover, we provide clear evidence that T. elongatus females embalm their prey, presumably as a means of prey preservation. The observed differences among Trachypus and Philanthus in gland size and prey embalming may have evolved in response to divergent ecological conditions.
Classification of Finger Movements for the Dexterous Hand Prosthesis Control With Surface Electromyography

A method for the classification of finger movements for dexterous control of prosthetic hands is proposed. Previous research was mainly devoted to identify hand movements as these actions generate strong electromyography (EMG) signals recorded from the forearm. In contrast, in this paper, we assess the use of multichannel surface electromyography (sEMG) to classify individual and combined finger movements for dexterous prosthetic control. sEMG channels were recorded from ten intact-limbed and six below-elbow amputee persons. Offline processing was used to evaluate the classification performance. The results show that high classification accuracies can be achieved with a processing chain consisting of time domain-autoregression feature extraction, orthogonal fuzzy neighborhood discriminant analysis for feature reduction, and linear discriminant analysis for classification. We show that finger and thumb movements can be decoded accurately with high accuracy with latencies as short as 200 ms. Thumb abduction was decoded successfully with high accuracy for six amputee persons for the first time. We also found that subsets of six EMG channels provide accuracy values similar to those computed with the full set of EMG channels (98% accuracy over ten intact-limbed subjects for the classification of 15 classes of different finger movements and 90% accuracy over six amputee persons for the classification of 12 classes of individual finger movements). These accuracy values are higher than previous studies, whereas we typically employed half the number of EMG channels per identified movement.
Association of platelet activation markers with cancer-associated venous thromboembolism

Abstract Venous thromboembolism (VTE) is a frequent complication in cancer patients. Platelet activation is thought to be involved in cancer-associated VTE. Here, we determined the association between evolving markers of platelet activation (soluble P-selectin [sP-selectin], soluble CD40 ligand [sCD40L], thrombospondin-1 [TSP-1] and platelet factor-4 [PF-4]) and the development of cancer-associated VTE. A nested matched case–control study was applied within a cohort of 1779 patients with different types of cancer that had been included in the Vienna Cancer and Thrombosis Study (CATS), a prospective, observational study on patients with newly diagnosed or progressive cancer after remission. Primary endpoint is symptomatic VTE during a maximum follow-up of 2 years. Cases (patients who developed VTE during follow-up) were matched in a 1:2 ratio to controls without VTE during follow-up with respect to tumor type, stage and time of observation in the study. In total, 131 VTE cases were compared to 262 controls. In logistic regression analysis, only sP-selectin was associated with risk of VTE. The odds ratios (OR) per double increase of sP-selectin, sCD40L, TSP-1 and PF-4 were 1.66 (95% confidence interval: 1.17–2.35, p = 0.005), 1.04 (0.89–1.21, p = 0.635), 1.09 (0.90–1.32, p = 0.360) and 1.03 (0.87–1.21, p = 0.737), respectively. In conclusion, sP-selectin, but not sCD40L, TSP-1 or PF-4 were associated with risk of VTE in cancer patients in this nested case–control study.
Using a Bayesian model of the listener to unveil the dialogue information state

Communicative listener feedback is a prevalent coordination mechanism in dialogue. Listeners use feedback to provide evidence of understanding to speakers, who, in turn, use it to reason about the listeners' mental state of listening, determine the groundedness of communicated information, and adapt their subsequent utterances to the listeners' needs. We describe a speaker-centric Bayesian model of listeners and their feedback behaviour, which can interpret the listener's feedback signal in its dialogue context and reason about the listener's mental state as well as the grounding status of objects in information state.
Taking exercise: cultural diversity and physically active lifestyles

‘Taking exercise’, whether it be recreational walking, participating in club sport, or joining in a physical education (PE) lesson, is a culturally loaded behaviour. We all see, do and talk about physical activity differently, yet, there has been relatively little research or theorising around difference in race, ethnicity, cultural diversity and physical activity from an educational perspective. This paper presents snapshots of data from three research projects with Indigenous and Muslim young people to illuminate how they and their families think about PE, physical activity and health. We will draw on ‘post’ discussions around biopolitics, colonisation, governmentality and citizenship to argue that PE needs to better account for ‘others’ and ‘othering’ in its research, planning and practices.