Miracle-dz/UniFAR-FTUs huggingface dataset:
Powder Additions to Mitigate Retardation in High-Volume Fly Ash Mixtures

This article describes how high-volume fly ash (HVFA) concrete mixtures are attractive from a sustainability viewpoint, they are sometimes plagued by long delays in finishing, producing a performance that is unacceptable to contractors. Isothermal calorimetry studies are conducted to examine excessive retardation in HVFA mixtures based on both Class C and Class F fly ash. In addition to quantifying the retardation, the calorimetric curves are also used to evaluate the performance of mitigation strategies based on various powder additions. Powder additions examined in the present study include an aluminum trihydroxide, calcium hydroxide, cement kiln dust, condensed silica fume, limestone, and a rapid-set cement. The addition of either 5% calcium hydroxide or 10% of the rapid-set cement by mass of total solids (powders) is observed to provide a significant reduction in the retardation measured in mixtures based on either class of fly ash for the material combinations examined in this study. Thus, these two powder additions may provide viable solutions to mitigating excessive retardation, extending the use of HVFA mixtures in practice.
The multiplicity of exoplanet host stars - Spectroscopic confirmation of the companions GJ 3021 B and HD 27442 B, one new planet host triple-star system, and global statistics

Aims. We present new results from our ongoing multiplicity study of exoplanet host stars and present a list of 29 confirmed planet host multiple-star systems. Furthermore, we discuss the properties of these stellar systems and compare the properties of exoplanets detected in these systems with those of planets orbiting single stars. Methods. We used direct imaging to search for wide stellar and substellar companions of exoplanet host stars. With infrared and/or optical spectroscopy, we determined the spectral properties of the newly-found co-moving companions. Results. We obtained infrared H -a ndK-band spectra of the co-moving companion GJ 3021 B. The infrared spectra and the apparent H-band photometry of the companion is consistent with an M3–M5 dwarf at the distance of the exoplanet host star. HD 40979 AB is a wide planet host stellar system, with a separation of ∼ 6400 AU. The companion to the exoplanet host star turned out to be a close stellar pair with a projected separation of ∼130 AU, hence, this system is a new member of those rare planet host triple-star systems of which only three other systems are presently known. HD 27442 AB is a wide binary system listed in the Washington Double Star Catalogue, whose common proper motion was recently confirmed. This system is composed of the subgiant HD 27442 A hosting the exoplanet, and its faint companion HD 27442 B. The visible and infrared J-, H-, and KS-band photometry of HD 27442 B at the distance of the primary star shows that the companion is probably a white dwarf. Our multi-epochs SofI imaging observations confirm this result and even refine the suggested physical characteristics of HD 27442 B. This companion should be a relatively young, hot white dwarf with an effective temperature of ∼14 400 K, and cooling age of ∼220 Myr. Finally, we could unambiguously confirm the white dwarf nature of HD 27442 B with follow-up optical and infrared spectroscopy. The spectra of the companion show Hydrogen absorption features of the Balmer, Paschen, and Bracket series. With its subgiant primary and the white-dwarf companion, the HD 27442 AB system is the most evolved planet host stellar system known today. The mass-period and eccentricity-period correlation of planets around single stars and those residing in multiple-star systems seem different for the short-period planets. The distribution functions of planet orbital elements (P, e) are identical, while the mass-distribution (m sin(i)) exhibits one difference. While both planet populations exhibit a peak in their mass-distribution at about 1 MJup, the frequency of more massive planets continually decreases in single-star systems, whereas the mass-distribution of planets residing in multiple-star systems exhibits a further peak at about 4 MJup. This indicates that the mass-distributions of the two planet populations might differ in the intermediate mass-range between 2 and 6 MJup.
Motivations of Event Tourism Participants and Behavioural Intentions

Purpose – The aim of this study is to determine the factors that motivated people to participate in the Alaçatı Herb Festival, their satisfaction levels, revisit and recommend their intentions. Design/methodology/approach A questionnaire was prepared, drawing from the scales in literature and applied to the 8th Alaçatı Herb Festival, Turkey. Multiple regression analysis was applied to test the hypotheses on the data set of 455 completed questionnaires. Findings – The findings indicate that the factors that motivated people to participate in the Alaçatı Herb Festival were: (1) regional attractiveness, (2) festival attractiveness, (3) travel attractiveness and (4) entertainment attractiveness. These results indicated that although these four factors increased: the satisfaction of participants, only regional attractiveness, festival attractiveness, and entertainment attractiveness increased revisit intentions and recommendation intentions. Research limitation/implications – The findings of this paper solely reflect the motivational factors and behavioural intentions during the Alaçatı Herb Festival. Destination managers should focus more on: regional attractiveness, festival attractiveness, and entertainment attractiveness to increase festival participants' revisit intentions and recommendation intentions. Originality – Understanding the variables that predict event participation at a gastronomic festival provides useful data for practitioners. Additionally, this study establishes an empirical relation between motivational factors, satisfaction, revisit intentions, and recommendation intentions.
Achievement goal motivation and cognitive strategies as predictors of musical creativity among secondary school music students

The purpose of this study was to (a) establish the relationships among achievement goal motivation, cognitive learning strategies, and musical creativity; (b) determine the best predictors of musical creativity among the study variables. Participants (N = 201) were secondary school music students in Kenya. Two self-report measures, the Achievement Goal Questionnaire-Revised (AGQ-R) and Motivated Strategies for Learning Questionnaire (MSLQ) were used in data collection for the independent variables. Musical creativity was measured by a creative composition task and evaluated according to four dimensions of musical craftsmanship, syntax, originality and aesthetic sensitivity. The results showed that musical creativity was positively correlated with mastery-approach goal and deep processing learning strategy but negatively correlated with surface processing strategy, performance-approach and performance-avoidance goals. The best predictor of musical creativity was deep processing strategy, β = . 45, p < . 01, which accounted for approximately 26% of the variance in participants’ musical creativity, followed by mastery-approach goal, β = . 27, p < . 01, R2 =. 09. The implication for music education is that music teachers should create conducive environments and adopt teaching strategies that nurture mastery-approach goal orientation and deep processing learning strategies to enhance musical creativity
Pbp1p, a Factor Interacting withSaccharomyces cerevisiae Poly(A)-Binding Protein, Regulates Polyadenylation

ABSTRACT The poly(A) tail of an mRNA is believed to influence the initiation of translation, and the rate at which the poly(A) tail is removed is thought to determine how fast an mRNA is degraded. One key factor associated with this 3′-end structure is the poly(A)-binding protein (Pab1p) encoded by the PAB1 gene inSaccharomyces cerevisiae. In an effort to learn more about the functional role of this protein, we used a two-hybrid screen to determine the factor(s) with which it interacts. We identified five genes encoding factors that specifically interact with the carboxy terminus of Pab1p. Of a total of 44 specific clones identified,PBP1 (for Pab1p-binding protein) was isolated 38 times. Of the putative interacting genes examined, PBP1 promoted the highest level of resistance to 3-aminotriazole (>100 mM) in constructs in which HIS3 was used as a reporter. We determined that a fraction of Pbp1p cosediments with polysomes in sucrose gradients and that its distribution is very similar to that of Pab1p. Disruption ofPBP1 showed that it is not essential for viability but can suppress the lethality associated with a PAB1 deletion. The suppression of pab1Δ by pbp1Δ appears to be different from that mediated by other pab1 suppressors, since disruption of PBP1 does not alter translation rates, affect accumulation of ribosomal subunits, change mRNA poly(A) tail lengths, or result in a defect in mRNA decay. Rather, Pbp1p appears to function in the nucleus to promote proper polyadenylation. In the absence of Pbp1p, 3′ termini of pre-mRNAs are properly cleaved but lack full-length poly(A) tails. These effects suggest that Pbp1p may act to repress the ability of Pab1p to negatively regulate polyadenylation.
Challenges to the Organisational Adoption of Big Data Analytics: A Case Study in the South African Telecommunications Industry

The purpose of this interpretive study was to explore the challenges to the adoption of Big Data Analytics (BDA) in organisations. The Technology-Organisation-Environment (TOE) model was used to guide the study. Data was collected from a large telecommunication organization in South Africa. Seven participants, from both Information Technology (IT) and business were interviewed to gain a holistic overview of challenges towards the adoption of BDA. An inductive approach was used for analysis. Findings revealed technological challenges to the adoption of BDA as being Data Integration; Data Privacy; Return on Investment; Data Quality; Cost; Data Integrity; and Performance and Scalability. From the organizational perspective, the major challenges were Ownership and Control; Skills Shortages; Business Focus and Prioritisation; Training and Exposure; Silos; and Unclear Processes. From the environmental context there were no major challenges highlighted. Organisational challenges were deemed to be the major inhibitors to adoption of BDA
Fe b 20 09 Seesaw scales and Steps from the Standard Model towards Superstring-Inspired Flipped E 6

Recently in connection with Superstring theory E8 and E6 unifications became very promising. In the present paper we have investigated a number of available paths from the Standard Model (SM) to the E6 unification, considering a chain of flipped models following the extension of the SM: SU(3)C × SU(2)L × U(1)Y → SU(3)C × SU(2)L × U(1)X × U(1)Z → SU(5) × U(1)X → SU(5) × U(1)Z1 × U(1)X1 → SO(10) × U(1)X1 → SO(10) × U(1)Z2 × U(1)X2 → E6 × U(1)X2 or E6, Also we have considered a chain with a left-right symmetry: SU(3)C × SU(2)L × U(1)Y → SU(3)C × SU(2)L × SU(2)R × U(1)X × U(1)Z → SU(4)C × SU(2)L × SU(2)R × U(1)Z → SO(10) × U(1)Z → E6. We have presented four examples including non-supersymmetric and supersymmetric extensions of the SM and different contents of the Higgs bosons providing the breaking of the flipped SO(10) and SU(5) down to the SM. It was shown that the final unification E6 × U(1) or E6 at the (Planck) GUT scale MSSG depends on the number of the Higgs boson representations considered in theory. ∗ crdas@imsc.res.in † laper@itep.ru, laper@imsc.res.in
Reexamining the long-run properties of the real interest rate

In the empirical literature, stationary and nonstationary behavior has been reported for the U.S. real interest rate over di¤erent time periods. We examine its long-run properties, through estimation of the order of integration, and interpret the results in light of the Taylor rule for monetary policy. When concentrating on the post-October 1987 period, our analysis suggests that the business cycle component of the real interest rate dominates its trend. Under such a setup, we argue on the basis of a theoretical example and a simulation study that, in nite samples, the estimator of the order of integration recovers information on the strength of the cycle, rather than the trend. For that reason, we extract the cyclical part of the real interest rate, and obtain considerably lower estimates of the order of integration. We therefore conjecture that in the post-October 1987 period, the estimates of the order of integration for the real interest rate are uninformative, and that its degree of long-run dependence has been overestimated. JEL Classi cation: C22, E32.
Is Twitter A Better Corpus for Measuring Sentiment Similarity?

Extensive experiments have validated the effectiveness of the corpus-based method for classifying the word’s sentiment polarity. However, no work is done for comparing different corpora in the polarity classification task. Nowadays, Twitter has aggregated huge amount of data that are full of people’s sentiments. In this paper, we empirically evaluate the performance of different corpora in sentiment similarity measurement, which is the fundamental task for word polarity classification. Experiment results show that the Twitter data can achieve a much better performance than the Google, Web1T and Wikipedia based methods.
Heritability of attention problems in children: longitudinal results from a study of twins, age 3 to 12.

BACKGROUND Twin studies of childhood behavior problems support the conclusion that individual differences in impulsivity, hyperactivity, and inattention are largely due to genetic influences. Non-genetic variation is due to environmental influences that are unique to the individual, and possibly to rater contrast effects. In the present longitudinal twin study, we report on the size of genetic and environmental effects on individual differences in attention problems at ages 3, 7, 10 and 12 years. METHODS Mothers were asked to complete the CBCL for their twin offspring when the children were 3 (n = 11,938), 7 (n = 10,657), 10 (n = 6,192), and 12 years old (n = 3,124). We focus on the Overactivity (OA) scale in the Child Behavior Checklist (CBCL/2-3), and on the Attention Problem (AP) scale of the CBCL/4-18. The data were analyzed using longitudinal structural equation modeling. RESULTS Broad heritability of OA and AP is estimated at nearly 75%, at each age. A contrast effect was observed at age 3 only. The results revealed less stability of OA at age 3 to AP at age 7 (r = .40), compared to the stability from AP at age 7 and beyond (r = .70). Genetic effects explained between 76% and 92% of the covariance between OA and AP. CONCLUSIONS OA and AP are highly heritable at all ages in both genders. The same set of genes appears to be expressed in boys and girls. The size of genetic and environmental contributions remains the same across the ages studied. Stability in OA and AP is accounted for by genetic influences. Children who do not display OA or AP at a given age are unlikely to develop these problems at a subsequent age.
Do you like my beard? The influence of applicant’s beard length in German and Dutch recruiting processes

BACKGROUND. Different beard lengths and styles have regularly cycled in and out of fashion in the last centuries. Lately, especially long beards experienced a comeback in society, but does this also apply for the work environment? Previous research concerning facial hair focused mainly on the attractiveness of beards to women under different circumstances. Little research addressed the actual reaction of recruiters when faced with a bearded applicant. AIM. The purpose of this study was to investigate the influence of applicant’s beard length on human resources personnel’s perception of the applicant during the recruiting process for customer service related jobs in Germany and the Netherlands. METHOD. A quantitative field experiment with a 4 (clean shaven, short beard, medium beard, full beard) x 2 (Germany, Netherlands) experimental design was used. A total of 496 recruiters located in all parts of the Netherlands and Germany received an email in their native language including a short motivational letter, several questions concerning general information about the company and a photograph of the applicant. Every condition was represented by two variants of photographs which resulted in a total of eight photographs for the four conditions. Every recruiter received only one randomly assigned photograph from the total pool of eight photographs. RESULTS. The findings of this study indicate that the amount of facial hair had an influence on the response of the recruiters. Overall, recruiters responded more positively to the extreme conditions of facial hair (clean-shaven and long beard) than to both conditions that lay in-between (short bead and medium beard). Applicants with a medium beard received the most negative responses from both male and female recruiters and German recruiters provided more general information than their Dutch colleagues. These findings imply that the amount of facial hair has an influence on the recruiting process in Germany and the Netherlands. CONCLUSION. Long beards seemed to have the opposite effect than expected and were rated more positively than shorter beards. This could indicate that long beards have found their way into the corporate world as an expression of individualism.
Statistical treatment of multivariate constructs in social psychology

Relative ingroup prototypicality (RIP) is an important concept in the ingroup projection model of social discrimination and tolerance. This paper reviews measures of RIP currently in use and critically examines how the notion of relative ingroup prototypicality is captured by statistical tests treating RIP as a single variable. It is concluded that composite measures of RIP imply multiple statistical hypotheses that have previously been confounded. The value of an alternative multiple regression approach is illustrated in a study testing the hypothesis of a negative relationship between RIP and outgroup attitudes. Results based on the conventional univariate analyses would have confirmed or disconfirmed the hypothesis depending on the scoring method. In contrast, the multiple regression approach described in this paper resolves this ambiguity by suggesting that only outgroup prototypicality may be necessary to predict outgroup attitudes.
Modeling Pareto-Optimal Set Using B-Spline Basis Functions

In the past few years, multi-objective optimization (MOO) algorithms have been extensively applied in several fields including engineering design problems. A major reason is the advancement of evolutionary multi-objective optimization (EMO) algorithms that are able to find a set of non-dominated points spread on the respective Pareto-optimal front in a single simulation. Besides just finding a set of Pareto-optimal solutions, one is often interested in capturing knowledge about the variation of variable values over the Pareto-optimal front. Recent innovization approaches for knowledge discovery from Pareto-optimal solutions remain as a major activity in this direction. In this paper, we present a different data-fitting approach for continuous parameterization of the Pareto-optimal front. Cubic B-spline basis functions are used for fitting the data returned by an EMO procedure in the variable space. No prior knowledge about the order in the data is assumed. An automatic procedure for detecting gaps in the Pareto-optimal front is also implemented. The algorithm takes points returned by the EMO as input and returns the control points of the B-spline manifold representing the Pareto-optimal set. Results for several standard and engineering, bi-objective and tri-objective optimization problems demonstrate the usefulness of the proposed procedure.
Male leaders with paternity leaves: effects of work norms on effectiveness evaluations

ABSTRACT With the growing relevance of work–family balance and gender equality at work, researchers have extensively recognized the importance of men’s greater home involvement. Yet, little is known about how people evaluate men and particularly male leaders with involved fathering behaviours, such as taking a long paternity leave. Using a social normative perspective, we explore whether cultural standards providing social approval for work–life balance influence competence evaluations of male leaders who request a paternity leave. Results from three experimental and field studies suggest that perceptions of a supportive work-family culture favour more positive evaluations of male leaders with a paternity leave. Associations were stronger for people with leadership aspirations and roles. Several main effects emerged too: male leaders taking a leave beyond the standard (from 2 weeks to 3 months) received more negative evaluations than male leaders with a shorter, statutory leave (from 2 days to 2 weeks), and employees’ sexism predicted negative evaluations. Also, slightly lower status was attributed to male compared to female leaders who requested a leave. Findings are discussed in terms of how male managers’ domestic behaviour should be further reinforced with organizational discourses and practices.
Executive Functions in Chronic Mesial Temporal Lobe Epilepsy

There is no consensus as to whether mesial temporal lobe epilepsy (MTLE) leads to executive function deficits. In this study, we adopted an extensive neuropsychological test battery and assessed different executive functions in chronic, unilateral MTLE. Performance of MTLE patients was compared with that of healthy peers and with normative data. Several MTLE patients had scores below cut-off or below the 10th percentile of normative data. Scores of the whole patient group were overall in the average range of normative data. Relative to controls, MTLE patients performed poorly in tests of working memory, cognitive flexibility, categorical verbal fluency, set-shifting, categorization, and planning. These findings raise an important methodological issue as they suggest that executive function deficits in chronic MTLE may be individually variable and that their assessment should include different tests. Deficits in chronic MTLE are not limited to temporal lobe functions, such as memory, but may extend to extra temporal cognitive domains, such as executive functions.