Miracle-dz/UniFAR-FTUs huggingface dataset:
The E11 origin of all maximal supergravities. The hierarchy of field-strengths

Starting from E11 and the space-time translations we construct an algebra that promotes the global E11 symmetries to local ones, and consider all its possible massive deformations. The Jacobi identities imply that such deformations are uniquely determined by a single tensor that belongs to the same representation of the internal symmetry group as the D−1 forms specified by E11. The non-linear realisation of the deformed algebra gives the field strengths of the theory which are those of any possible gauged maximal supergravity theory in any dimension. All the possible deformed algebras are in one to one correspondence with all the possible massive maximal supergravity theories. The hierarchy of fields inherent in the E11 formulation plays an important role in the derivation. The tensor that determines the deformation can be identified with the embedding tensor used previously to parameterise gauged supergravities. Thus we provide a very efficient, simple and unified derivation of all the field strengths and gauge transformations of all maximal gauged supergravities from E11. The dynamics arises as a set of first order duality relations among these field strengths.
Hyperlinear and Sofic Groups: A Brief Guide

Abstract This is an introductory survey of the emerging theory of two new classes of (discrete, countable) groups, called hyperlinear and sofic groups. They can be characterized as subgroups of metric ultraproducts of families of, respectively, unitary groups U(n) and symmetric groups Sn , n ∈ ℕ. Hyperlinear groups come from theory of operator algebras (Connes' Embedding Problem), while sofic groups, introduced by Gromov, are motivated by a problem of symbolic dynamics (Gottschalk's Surjunctivity Conjecture). Open questions are numerous, in particular it is still unknown if every group is hyperlinear and/or sofic.
Constructing Compact Takagi-Sugeno Rule Systems: Identification of Complex Interactions in Epidemiological Data

The Takagi-Sugeno (TS) fuzzy rule system is a widely used data mining technique, and is of particular use in the identification of non-linear interactions between variables. However the number of rules increases dramatically when applied to high dimensional data sets (the curse of dimensionality). Few robust methods are available to identify important rules while removing redundant ones, and this results in limited applicability in fields such as epidemiology or bioinformatics where the interaction of many variables must be considered. Here, we develop a new parsimonious TS rule system. We propose three statistics: R, L, and ω-values, to rank the importance of each TS rule, and a forward selection procedure to construct a final model. We use our method to predict how key components of childhood deprivation combine to influence educational achievement outcome. We show that a parsimonious TS model can be constructed, based on a small subset of rules, that provides an accurate description of the relationship between deprivation indices and educational outcomes. The selected rules shed light on the synergistic relationships between the variables, and reveal that the effect of targeting specific domains of deprivation is crucially dependent on the state of the other domains. Policy decisions need to incorporate these interactions, and deprivation indices should not be considered in isolation. The TS rule system provides a basis for such decision making, and has wide applicability for the identification of non-linear interactions in complex biomedical data.
Astrophysicists on Twitter: An in-depth analysis of tweeting and scientific publication behavior

Purpose – The purpose of this paper is to analyze the tweeting behavior of 37 astrophysicists on Twitter and compares their tweeting behavior with their publication behavior and citation impact to show whether they tweet research-related topics or not. Design/methodology/approach – Astrophysicists on Twitter are selected to compare their tweets with their publications from Web of Science. Different user groups are identified based on tweeting and publication frequency. Findings – A moderate negative correlation (ρ=−0.339) is found between the number of publications and tweets per day, while retweet and citation rates do not correlate. The similarity between tweets and abstracts is very low (cos=0.081). User groups show different tweeting behavior such as retweeting and including hashtags, usernames and URLs. Research limitations/implications – The study is limited in terms of the small set of astrophysicists. Results are not necessarily representative of the entire astrophysicist community on Twitter and .
Improvement in Visual Search with Practice: Mapping Learning-Related Changes in Neurocognitive Stages of Processing

Practice can improve performance on visual search tasks; the neural mechanisms underlying such improvements, however, are not clear. Response time typically shortens with practice, but which components of the stimulus–response processing chain facilitate this behavioral change? Improved search performance could result from enhancements in various cognitive processing stages, including (1) sensory processing, (2) attentional allocation, (3) target discrimination, (4) motor-response preparation, and/or (5) response execution. We measured event-related potentials (ERPs) as human participants completed a five-day visual-search protocol in which they reported the orientation of a color popout target within an array of ellipses. We assessed changes in behavioral performance and in ERP components associated with various stages of processing. After practice, response time decreased in all participants (while accuracy remained consistent), and electrophysiological measures revealed modulation of several ERP components. First, amplitudes of the early sensory-evoked N1 component at 150 ms increased bilaterally, indicating enhanced visual sensory processing of the array. Second, the negative-polarity posterior–contralateral component (N2pc, 170–250 ms) was earlier and larger, demonstrating enhanced attentional orienting. Third, the amplitude of the sustained posterior contralateral negativity component (SPCN, 300–400 ms) decreased, indicating facilitated target discrimination. Finally, faster motor-response preparation and execution were observed after practice, as indicated by latency changes in both the stimulus-locked and response-locked lateralized readiness potentials (LRPs). These electrophysiological results delineate the functional plasticity in key mechanisms underlying visual search with high temporal resolution and illustrate how practice influences various cognitive and neural processing stages leading to enhanced behavioral performance.
Emotional Stability, Core Self-Evaluations, and Job Outcomes: A Review of the Evidence and an Agenda for Future Research

In this article we present a review of research on core self-evaluations, a broad personality trait indicated by 4 more narrow traits: self-esteem, generalized self-efficacy, locus of control, and emotional stability. We review evidence suggesting that the 4 core traits are highly related, load on a single unitary factor, and have dubious incremental validity controlling for their common core. We more generally investigate the construct validity of core self-evaluations. We also report on the development and validation of the first direct measure of the concept, the Core Self-Evaluations Scale (CSES). Cross-cultural evidence on the CSES is provided. We conclude by offering an agenda for future research, discussing areas where future core self-evaluations research is most needed.
LotTrack: RFID-based process control in the semiconductor industry

We describe the design and implementation of a real-time localization solution that Infineon Technologies uses in its wafer fabrication facility in Villach, Austria. The system combines active RFID, passive RFID, and ultrasound sensors to track plastic wafer boxes and wafer cassettes in the company's chip-manufacturing process.
بررسی تحمل به تنش یخ زدگی در گیاه شنبلیله (Trigonella foenum-graceum L.)

دماهای پایین یکی از تنش‌های مهم غیرزنده می‌باشد که با تأثیر بر فرآیندهای حیاتی گیاه سبب اختلال در رشد آن می‌شود. به منظور بررسی تحمل به سرمای 10 اکوتیپ شنبلیله (Trigonella foenum-graceum L.)، آزمایشی در سال زراعی 93-1392 در محل گلخانه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به‌صورت فاکتوریل و در قالب طرح کاملا تصادفی با سه تکرار انجام شد. فاکتورهای مورد بررسی شامل تاریخ کاشت در چهار سطح (23 شهریور، 23 مهر، 15 اسفند و 15 فروردین)، اکوتیپ در 10 سطح (آذری، اردستان، پابلند، پاکوتاه، شیراز، شیروان، مشهد، نیشابور، همدان و هندی) و دماهای یخ‌زدگی در هفت سطح (5+ (شاهد)، صفر، 3-، 6-، 9-،12- و 15- درجه سانتی‏گراد) بودند. گیاهان در شرایط آب و هوایی طبیعی محیط رشد یافته و به سرما خو گرفتند، سپس گیاهان کشت شده در شهریور و مهر در اواسط دی و گیاهان کشت شده در اسفند و فروردین در اواسط اردیبهشت برای اعمال تنش سرما به فریزرترموگرادیان منتقل شدند. چهار هفته پس از اعمال تنش، درصد بقاء، دمای کشنده 50 درصد گیاهان براساس درصد بقاء (LT50su)، ارتفاع بوته، سطح برگ، دمای کاهنده 50 درصد سطح برگ (RLAT50)، وزن خشک و دمای کاهنده 50 درصد وزن خشک (RDMT50) آنها تعیین شد. اکوتیپ‌ها به‌ترتیب در تاریخ‌های کاشت مهر و اسفند از بیشترین و کمترین درصد بقاء برخوردار بودند. گیاهان همه اکوتیپ‌ها (به جز اکوتیپ‌های آذری و اردستان در کاشت سوم) توانستند در هر چهار تاریخ کاشت کاهش دما تا 9- درجه سانتی‌گراد را تحمل کنند. کاهش دما به 12- درجه سانتی‏گراد نیز منجر به مرگ همه اکوتیپ‏ها به‌جز اکوتیپ‌های مشهد و نیشابور در کاشت شهریور شد. اکوتیپ‌های مشهد و نیشابور در کاشت‌های اول و دوم کمترین LT50su را داشتند، ولی در کاشت سوم و چهارم تفاوت معنی‏ داری از این نظر بین اکوتیپ‌ها مشاهده نشد. اکوتیپ پاکوتاه به‌جز کاشت اسفند در کاشت‌های دیگر کمترین درصد کاهش ارتفاع (به‌ترتیب 35، 24 و 33 درصد) را نسبت به شاهد به خود اختصاص داد. در کاشت مهرماه، دو اکوتیپ پابلند و نیشابور بیشترین و کمترین (به‌ترتیب 89 و 59 درصد) کاهش سطح برگ را نسبت به دمای شاهد داشتند. با کاهش دما به 9- درجه سانتی‌گراد درصد وزن خشک گیاهان نسبت به تیمار شاهد کاهش یافت و کمترین درصد کاهش وزن خشک در مقایسه با شاهد مربوط به گیاهان کاشت مهر بود. همبستگی مثبت و معنی‏ داری بین RLAT50 و RDMT50 با دمای کشنده 50 درصد گیاهان براساس درصد بقاء (به‌ترتیب**53/0r= و**64/0r=) وجود داشت. در مجموع اکوتیپ‌های مشهد، نیشابور، شیروان و پاکوتاه از توانایی بقاء و رشد مجدد بهتری برخوردار بودند. به طوری که درصد بقاء در این اکوتیپ‌ها در حدود هشت درصد بیشتر از سایر اکوتیپ‌ها بود.
Embracing mental illness: do education and contact make any difference in help-seeking intention among Pakistani students?

ABSTRACT Those suffering from mental illness usually fall victim to stigmatization and the resulting discrimination. This study aims at finding out whether students differ in their attitudes based on the courses studied and previous contact with mentally ill. Using purposive sampling technique, 236 students from seven departments of University of Karachi were selected for this study. They were divided into three groups based on their educational background i.e. “psychology group”, “allied group” and “other group”. Community Attitude towards Mental Illness (CAMI) Scale along with a demographics sheet were administered to the participants. Using SPSS version 23, one-way ANOVA was carried out between educational groups and responses of CAMI sub-scales. Results indicated that in comparison to the other two groups, attitudes of psychology students were lower on authoritarianism, social restrictiveness subscales and higher on community mental health ideology subscale. Results are discussed in detail.
Gender differences through the lens of Rio: Australian Olympic primetime coverage of the 2016 Rio Summer Olympic Games

This study explored gender differences within the Australian primetime broadcast of the 2016 Rio Summer Olympic Games. Forty-five broadcast hours from the Seven Network were examined regarding clock-time, name mentions, and descriptions divided by biological sex, finding that the Seven Network devoted nearly equal clock-time to male and female athletes, yet 14 of the top 20 most mentioned athletes (70%) were men. In terms of word-by-word descriptors, gender differences were also uncovered on many levels relating to attributions of athletic success, failure, personality, and physicality. The findings of this study suggest that—at least within an Australian sports context—gender portrayals ranged from relative equality to significant differences depending on the metric employed. Theoretical and practical implications are provided.
Retrofitting Domestic Hot Water Heaters for Solar Water Heating Systems in Single-Family Houses in a Cold Climate: A Theoretical Analysis

One of the biggest obstacles to economic profitability of solar water heating systems is the investment cost. Retrofitting existing domestic hot water heaters when a new solar hot water system is installed can reduce both the installation and material costs. In this study, retrofitting existing water heaters for solar water heating systems in Swedish single-family houses was theoretically investigated using the TRNSYS software. Four simulation models using forced circulation flow with different system configurations and control strategies were simulated and analysed in the study. A comparison with a standard solar thermal system was also presented based on the annual solar fraction. The simulation results indicate that the retrofitting configuration achieving the highest annual performance consists of a system where the existing tank is used as storage for the solar heat and a smaller tank with a heater is added in series to make sure that the required outlet temperature can be met. An external heat exchanger is used between the collector circuit and the existing tank. For this retrofitted system an annual solar fraction of 50.5% was achieved. A conventional solar thermal system using a standard solar tank achieves a comparable performance for the same total storage volume, collector area and reference conditions.
Invariants of the velocity-gradient tensor in a spatially developing inhomogeneous turbulent flow

Tomographic particle image velocimetry experiments were performed in the near field of the turbulent flow past a square cylinder. A classical Reynolds decomposition was performed on the resulting velocity fields into a time invariant mean flow and a fluctuating velocity field. This fluctuating velocity field was then further decomposed into coherent and residual/stochastic fluctuations. The statistical distributions of the second and third invariants of the velocity-gradient tensor were then computed at various streamwise locations, along the centreline of the flow and within the shear layers. These invariants were calculated from both the Reynolds-decomposed fluctuating velocity fields and the coherent and stochastic fluctuating velocity fields. The range of spatial locations probed incorporates regions of contrasting flow physics, including a mean recirculation region and separated shear layers, both upstream and downstream of the location of peak turbulence intensity along the centreline. These different flow physics are also reflected in the velocity gradients themselves with different topologies, as characterised by the statistical distributions of the constituent enstrophy and strain-rate invariants, for the three different fluctuating velocity fields. Despite these differing flow physics the ubiquitous self-similar ‘tear drop’-shaped joint probability density function between the second and third invariants of the velocity-gradient tensor is observed along the centreline and shear layer when calculated from both the Reynolds decomposed and the stochastic velocity fluctuations. These ‘tear drop’-shaped joint probability density functions are not, however, observed when calculated from the coherent velocity fluctuations. This ‘tear drop’ shape is classically associated with the statistical distribution of the velocity-gradient tensor invariants in fully developed turbulent flows in which there is no coherent dynamics present, and hence spectral peaks at low wavenumbers. The results presented in this manuscript, however, show that such ‘tear drops’ also exist in spatially developing inhomogeneous turbulent flows. This suggests that the ‘tear drop’ shape may not just be a universal feature of fully developed turbulence but of turbulent flows in general.
Burnout among Social Workers in Iran: Relations to Individual Characteristics and Client Violence

Social workers are considered a professional group at high risk of burnout. Noticing the insufficient human resource management and understaffed social work centers, Iranian social workers are faced with a considerable level of physical and mental stress, which can lead to burnout. A national study on 390 social workers was conducted. Among social workers, 10.9% had experienced burnout and 17.4% are at risk of developing burnout. Social workers scored higher in burnout if they were dissatisfied with their income, had experienced violence, or had lower self-esteem. Findings are discussed with regard to Iranian context and recommendations for authorities of Iranian state welfare organizations are made.
Rehabilitation of Executive Dysfunction in Multiple Sclerosis: Cognitive, Behavioural and Neurophysiological Effects of Goal Management Training

Multiple sclerosis (MS) is a chronic, progressive central nervous system disease characterized by distributed white matter injury. Particularly prevalent in Canada, MS is a leading cause of disability with extended personal and societal costs given its early onset (on average between 2040 years of age). Deficits in executive functioning are common and detrimental to employment, daily functioning and quality of life, however their precise nature remains underspecified. Two studies were undertaken to: (1) describe the executive processes affected in MS, including neurophysiological correlates, and (2) explore, in a double-blind randomized controlled trial, patients’ response to an intervention for improving behavioural self-regulation. Study 1 described significant functional limitations and impairments in processing speed and executive control of attention, memory and working memory in MS patients, both relative to neurologically healthy controls and as a monotonic function of disease severity. Mean amplitudes for eventrelated potentials (ERPs) including the P3 and the error-related negativity and positivity (ERN, Pe) were linked to behavioural markers of attention control and performance monitoring. ERP amplitudes and ERP-behavioural associations appeared sensitive to the presence and severity of executive dysfunction related to disease progression. In Study 2, these impaired MS patients iii were randomly assigned to a modified version of Goal Management Training (GMT) or a psycho-educational control group (Brain Health Workshop, BHW). In GMT, patients learned stepwise strategies ("Stop-State-Split") to keep "on track" in their daily activities, including mindfulness training to enhance attentional awareness and control. Rehabilitation outcomes were assessed post-training and at a 6-month follow-up using a multi-level battery. Compared to BHW, GMT was associated with greater improvement on tests of executive-attentional processes as well as functional task performance and observable functioning in daily life activities. ERPbehavioural changes provided corollary evidence of improved self-regulatory processing. This study is among the first to demonstrate improvement in executive functioning compared to an active control condition in MS patients with a range of disease severity and with effects remaining visible at six months. While replication in a larger sample size is needed, results suggest GMT as a potentially effective approach for executive and self-regulatory impairment in
Rapid Detection of blaKPC Carbapenemase Genes by Real-Time PCR

ABSTRACT Carbapenem resistance among Enterobacteriaceae is an emerging problem worldwide. Klebsiella pneumoniae carbapenemase (blaKPC) enzymes are among the most common β-lactamases described. In this study, we report the development and validation of a real-time PCR (q-PCR) assay for the detection of blaKPC genes using TaqMan chemistry. The q-PCR amplification of blaKPC DNA was linear over 7 log dilutions (r2 = 0.999; slope, 3.54), and the amplification efficiency was 91.6%. The q-PCR detection limit was 1 CFU, and there was no cross-reaction with DNA extracted from several multidrug-resistant bacteria. Perianal/rectal swabs (n = 187) collected in duplicate from 128 patients admitted to Sheba Medical Center surgical intensive care units were evaluated for the presence of carbapenem-resistant bacteria by culturing on MacConkey agar-plus-carbapenem disks and for blaKPC genes by q-PCR. Carbapenem-resistant organisms, all K. pneumoniae, were isolated from 47 (25.1%) of the 187 samples collected, while blaKPC genes were detected in 54 (28.9%) of the patient samples extracted by the NucliSENS easyMAG system. Of these, seven samples were positive for blaKPC genes by q-PCR but negative for carbapenem resistance by culture, while all samples in which no carbapenem-resistant bacteria were detected by culture also tested negative by q-PCR. Thus, the sensitivity and specificity of the q-PCR assay after extraction by the NucliSENS easyMAG system were 100% and 95%, respectively. Similar values were obtained after DNA extraction by the Roche MagNA Pure LC instrument: 97.9% sensitivity and 96.4% specificity. Overall, the blaKPC q-PCR assay appears to be highly sensitive and specific. The utilization of q-PCR will shorten the time to blaKPC detection from 24 h to 4 h and will help in rapidly isolating colonized or infected patients and assigning them to cohorts.
Duygusal Emek ve Tükenmişlik İlişkisi: Turist Rehberleri Üzerine Bir Araştırma

Hizmet sektorunde musterilerde olumlu duygular yaratabilmede, calisanlarin duygulari da bir emek gucu olarak gorulmektedir. Ancak, calisanlarin harcadiklari duygusal emek bazi olumsuz sonuclar dogurabilmektedir. Bu sonuclar arasinda tukenmislik onemli bir yer tutmaktadir. Bu calismada da, meslek geregi yuksek duzeyde duygusal emek harcayan turist rehberlerine yonelik bir arastirma gerceklestirilmistir. Arastirmanin temel amaci turist rehberlerinin harcadiklari duygusal emek ile tukenmislik durumlari arasindaki iliskiyi belirlemektir. Bu amacla arastirmada anket teknigi kullanilmistir ve 147 turist rehberinden edinilen anket sonuclari analiz edilmistir. Duygusal emek olcegine yonelik yapilan faktor analizi sonucunda “yuzeysel” (YD), “derinlemesine” (DD) ve “samimi” (SD) davranislar olmak uzere uc boyutlu bir yapiya ulasilmistir. Korelasyon analizi sonucunda turist rehberlerinin derinlemesine ve samimi davranis sergileme duzeyleri arttikca tukenmislik boyutlarindan olan duyarsizlasma duzeylerinin azaldigi ve kisisel basari hislerinin arttigi sonucuna ulasilmistir. Ayrica, Anova ve t-test sonucunda, lise egitim duzeyindekilerin daha az yuzeysel davranis ve meslegi asil is olarak icra edenlerin daha fazla derinlemesine davranis sergiledikleri belirlenmistir.