Miracle-dz/UniFAR-FTUs huggingface dataset:
International Journal of Physical Sciences Study of the Effect of Particles Size and Volume Fraction Concentration on the Thermal Conductivity and Thermal Diffusivity of Al 2 O 3 Nanofluids

In this study we present new data for the thermal conductivity enhancement in four nanofluids containing 11, 25, 50, and 63 nm diameter Aluminum oxide (Al 2 O 3) nanoparticles in distilled water. The nanofluids were prepared using single step method (that is, by dispersing nanoparticle directly in base fluid) which was gathered in ultrasonic device for approximately 7 h. The transient hot-wire laser beam displacement technique was used to measure the thermal conductivity and thermal diffusivity of the prepared nanofluids. The thermal conductivity and thermal diffusivity were obtained by fitting the experimental data to the numerical data simulated for Al 2 O 3 in distilled water. The results show that, the thermal conductivity and thermal diffusivity enhancement of nanofluids increases as the particle size increases. Thermal conductivity and thermal diffusivity enhancement of Al 2 O 3 nanofluids was increase as the volume fraction concentration increases. This enhancement attributed to the many factors such as, ballistic energy, nature of heat transport in nanoparticle, and interfacial layer between solid/fluids.
The Enhancement of the N1 Wave Elicited by Sensory Stimuli Presented at Very Short Inter-Stimulus Intervals Is a General Feature across Sensory Systems

Background A paradoxical enhancement of the magnitude of the N1 wave of the auditory event-related potential (ERP) has been described when auditory stimuli are presented at very short (<400 ms) inter-stimulus intervals (ISI). Here, we examined whether this enhancement is specific for the auditory system, or whether it also affects ERPs elicited by stimuli belonging to other sensory modalities. Methodology and Principal Findings We recorded ERPs elicited by auditory and somatosensory stimuli in 13 healthy subjects. For each sensory modality, 4800 stimuli were presented. Auditory stimuli consisted in brief tones presented binaurally, and somatosensory stimuli consisted in constant-current electrical pulses applied to the right median nerve. Stimuli were delivered continuously, and the ISI was varied randomly between 100 and 1000 ms. We found that the ISI had a similar effect on both auditory and somatosensory ERPs. In both sensory modalities, ISI had an opposite effect on the magnitude of the N1 and P2 waves: the magnitude of the auditory and the somatosensory N1 was significantly increased at ISI≤200 ms, while the magnitude of the auditory and the somatosensory P2 was significantly decreased at ISI≤200 ms. Conclusion and Significance The observation that both the auditory and the somatosensory N1 are enhanced at short ISIs indicates that this phenomenon reflects a physiological property that is common across sensory systems, rather than, as previously suggested, unique for the auditory system. Two of the hypotheses most frequently put forward to explain this observation, namely (i) the decreased contribution of inhibitory postsynaptic potentials to the recorded scalp ERPs and (ii) the decreased contribution of ‘latent inhibition’, are discussed. Because neither of these two hypotheses can satisfactorily account for the concomitant reduction of the auditory and the somatosensory P2, we propose a third, novel hypothesis, consisting in the modulation of a single neural component contributing to both the N1 and the P2 waves.
Der berner patienten- und therapeutenstundenbogen 2000: Ein instrument zur erfassung von therapieprozessen.

Zusammenfassung. Theoretischer Hintergrund: Kontinuierliche Qualitatssicherung psychotherapeutischer Behandlung ist Grundlage fur die adaptive Indikation und Aufrechterhaltung der Prozessqualitat. Dazu werden Messinstrumente gefordert, die zentrale Aspekte des Psychotherapieprozesses moglichst umfassend und dennoch zeitokonomisch aus Therapeuten- und Patientensicht abbilden (Grawe, 1998). Fragestellung: Entspricht der Berner Therapeuten- und Patientenstundenbogen 2000 (TSTB/PSTB) zentralen messtheoretischen Anforderungen? Methode: Anhand von 429 ambulant behandelten Patienten wird die Faktorenstruktur in verschiedenen Settings uberpruft sowie Fragen zur Reliabilitat und Validitat der Bogen beantwortet. Ergebnisse: Die konfirmatorischen Faktoranalysen bestatigen die theoriegeleiteten Skalen der Vorgangerversion uber verschiedene Settings und Therapiephasen hinweg (TSTB: Therapiebeziehung, Offenheit, Therapiefortschritte, interaktionelle Schwierigkeit, Problembewaltigung, Bezug zur realen Lebenssituation, m.
Detection of rare mutant K-ras DNA in a single-tube reaction using peptide nucleic acid as both PCR clamp and sensor probe

The major problem of using somatic mutations as markers of malignancy is that the clinical samples are frequently containing a trace amounts of mutant allele in a large excess of wild-type DNA. Most methods developed thus far for the purpose of tickling this difficult problem require multiple procedural steps that are laborious. We report herein the development of a rapid and simple protocol for detecting a trace amounts of mutant K-ras in a single tube, one-step format. In a capillary PCR, a 17mer peptide nucleic acid (PNA) complementary to the wild-type sequence and spanning codons 12 and 13 of the K-ras oncogene was used to clamp-PCR for wild-type, but not mutant alleles. The designated PNA was labeled with a fluorescent dye for use as a sensor probe, which differentiated all 12 possible mutations from the wild-type by a melting temperature (Tm) shift in a range of 9 to 16°C. An extension temperature of 60°C and an opposite primer 97 nt away from the PNA were required to obtain full suppression of wild-type PCR. After optimization, the reaction detected mutant templates in a ratio of 1:10 000 wild-type alleles. Using this newly devised protocol, we have been able to detect 19 mutants in a group of 24 serum samples obtained from patients with pancreatic cancer. Taken together, our data suggest that this newly devised protocol can serve as an useful tool for cancer screening as well as in the detection of rare mutation in many diseases.
HISTORY: The Use of the Kalman Filter for Human Motion Tracking in Virtual Reality

In 1960 Rudolph E. Kalman published his now famous article describing a recursive solution to the discrete-data linear filtering problem (Kalman, A new approach to linear filtering and prediction problems, Transactions of the ASMEJournal of Basic Engineering, 82 (D), 3545, 1960). Since that time, due in large part to advances in digital computing, the Kalman filter has been the subject of extensive research and applications, particularly in the area of autonomous or assisted navigation. The purpose of this paper is to acknowledge the approaching 50th anniversary of the Kalman filter with a look back at the use of the filter for human motion tracking in virtual reality (VR) and augmented reality (AR). In recent years there has been an explosion in the use of the Kalman filter in VR/AR. In fact, at technical conferences related to VR these days, it would be unusual to see a paper on tracking that did not use some form of a Kalman filter, or draw comparisons to those that do. As such, rather than attempt a comprehensive survey of all uses of the Kalman filter to date, what follows focuses primarily on the early discovery and subsequent period of evolution of the Kalman filter in VR, along with a few examples of modern commercial systems that use the Kalman filter. This paper begins with a very brief introduction to the Kalman filter, a brief look at the origins of VR, a little about tracking in VRin particular the work and conditions that gave rise to the use of the filter, and then the evolution of the use of the filter in VR.
Do Frustrated Economic Expectations and Objective Economic Inequity Promote Crime?

Although prior research concerning Agnew's General Strain Theory (GST) has generated renewed support for the perspective, it remains limited in two critical ways. First, research tends to measure strain in terms of noxious stimuli while neglecting Agnew's conception of strain as the disjunction between expected and actual outcomes or as the disjunction between fair and actual outcomes. Second, studies rely exclusively on correlational designs that preclude causal assertions about the relationships among strain, anger, and crime. This study addresses both limitations by conducting the first experimental test of GST. Results indicate that (1) respondents assigned at random to experimental conditions involving strain as a disjunction between expected and actual outcomes or between fair and actual outcomes report significantly higher levels of situational anger, (2) high levels of situational anger are significantly associated with a higher self-reported likelihood of engaging in theft from an employer, and (3) these relationships are not significantly conditioned by perceived social support.
Effect of Segregated and Integrated Educational Settings upon Selected Dialectal Features

The purpose of this study was to determine the effect of a segregated educational setting versus an integrated educational setting upon selected dialectal characteristics of 60 black children in elementary school. Half of the children were selected from an all-black school and half from an integrated school. The subjects repeated 13 sentences from the Carrow Elicited Language Inventory. Instances of three commonly identified dialectal variations (zero copula, omission of /s/ and /z/ inflections, and substitution of /d/ for voiced “th”) were recorded and statistically treated through the use of an analysis of variance. Analysis indicated that in neither group of subjects was there a statistically significant decline in the presence of zero copula. However, regarding the omission of /s/ and /z/ inflections, only in the language of subjects from the integrated school was there a decrease in dialectal responses. Finally, with regard to the substitution of /d/ for voiced “th,” there was a statistically significant decline in dialectal responses for both groups of subjects. The results are discussed as they pertain to trends and important research needs in the area of social dialects, particularly black English.
A Classification of Dialogue Actions in Tutorial Dialogue

In this paper we present a taxonomy of dialogue moves which describe the actions that students and tutors perform in tutorial dialogue. We are motivated by the need for a categorisation of such actions in order to develop computational models for tutorial dialogue. As such, we build both on existing work on dialogue move categorisation for tutorial dialogue as well as dialogue taxonomies for general dialogue. Our taxonomy has been prepared by analysing a corpus of tutorial dialogues on mathematical theorem proving. We also detail an annotation experiment in which we apply the taxonomy and discuss idiosyncrasies in the data which influence the decisions in the dialogue move classification.
Speaker recognition by means of Deep Belief Networks

Most state-of-the-art speaker recognition systems are based on Gaussian Mixture Models (GMMs), where a speech segment is represented by a compact representation, referred to as "identity vector" (ivector for short), extracted by means of Factor Analysis. The main advantage of this representation is that the problem of intersession variability is deferred to a second stage, dealing with low-dimensional vectors rather than with the high-dimensional space of the GMM means. In this paper, we propose to use as a pseudo-ivector extractor a Deep Belief Network (DBN) architecture, trained with the utterances of several hundred speakers. In this approach, the DBN performs a non-linear transformation of the input features, which produces the probability that an output unit is on, given the input features. We model the distribution of the output units, given an utterance, by a reduced set of parameters that embed the speaker characteristics. Tested on the dataset exploited for training the systems that have been used for the NIST 2012 Speaker Recognition Evaluation, this approach shows promising results
The association between mathematics pedagogy and learners' dispositions for university study

We address the current concerns about teaching‐to‐the‐test and its association with declining dispositions towards further study of mathematics and the consequences for choice of STEM subjects at university. In particular, through a mixed study including a large survey sample of over 1000 students and their teachers, and focussed qualitative case studies, we explored the impact of ‘transmissionist’ pedagogic practices on learning outcomes. We report on the construction and validation of a scale to measure teachers’ self‐reported pedagogy. We then use this measure in combination with the students’ survey data and through regression modelling we illustrate significant associations between the pedagogic measure and students’ mathematics dispositions. Finally, we discuss the potential implications of these results for mathematics education and the STEM agenda.
APPLICATION OF PREDICTIVE CONTROL TECHNIQUES WITHIN PARALLEL ROBOT

This paper addresses the position tracking control application of a parallel robot using predictive control techniques. A Generalized Predictive Control strategy (GPC), which considers the linear dynamic model, is used to enhance the tracking position accuracy. The robustification of GPC against measurement noise and neglected dynamics using Youla parameterization is performed. A simulation of the orthoglide robot considering uncertainties related to geometrical and dynamic parameters, sensors noise and frictions is performed on two different trajectories. Finally, it is compared the ro-bustified GPC controller with the classical Computed Torque Control (CTC). The robustified GPC controller shows a better performance for high accelerations and it also reduces the effect of the noise in the control signal of the parallel robot.
Influence of Feedback Specificity and Simultaneous Goals on Task Performance

A laboratory experiment was conducted examining the influence of feedback specificity and simultaneous quantity and quality goals on the performance of an assembly task including the effect of feedback specificity on perceptual and behavioral measures of intrinsic motivation. The hypotheses were framed in terms of a traditional goal setting model and a control systems-goal conflict model. Neither model was supported for the quantity performance measure in that varying the specificity of quantity of performance feedback did not result in differential quantity of performance. The traditional goal setting model was supported based on results from the quality performance measure . These results were that quality performance was significantly higher in the presence of specific quality of performance feedback than in the presence of non-specific quality of performance feedback. The prediction based on the control systems-goal conflict model that the simultaneous quantity and quality goals would come into conflict and result in higher performance on one of the goals (as the result of the attention focusing property of specific performance feedback) at the expense of reduced performance on the other goal was not supported. The exploratory research hypotheses, that specific feedback would be viewed as autonomy supportive and would enhance intrinsic motivation, and that non-specific feedback would be viewed as controlling and would diminish intrinsic motivation, were not supported based on the results of the perceptual measures of intrinsic motivation; the exploratory hypotheses were supported based on the results of the behavioral measures of intrinsic motivation.
Analysis and interpretation of cost data in randomised controlled trials: review of published studies

Objective To review critically the statistical methods used for health economic evaluations in randomised controlled trials where an estimate of cost is available for each patient in the study. Design Survey of published randomised trials including an economic evaluation with cost values suitable for statistical analysis; 45 such trials published in 1995 were identified from Medline. Main outcome measures The use of statistical methods for cost data was assessed interms of the descriptive statistics reported, use of statistical inference, and whether the reported conclusions were justified. Results Although all 45 trials reviewed apparently had cost data for each patient, only 9 (20%) reported adequate measures of variability for these data and only 25 (56%) gave results of statistical tests or a measure of precision for the comparison of costs between the randomised groups. Only 16 (36%) of the articles gave conclusions which were justified on the basis of results presented in the paper. No paper reported sample size calculations for costs Conclusions The analysis and interpretation of cost data from published trials reveal a lack of statistical awareness. Strong and potentially misleading conclusions about the relative costs of alternative therapies have often been reported in the absence of supporting statistical evidence. Improvements in the analysis and reporting of health economic assessments are urgently required. Health economic guidelines need to be revised to incorporate more detailed statistical advice.
Depression and social functioning : examining two interpersonal theories

The purpose of this study was to test the specific predictions of two theories of depression and social functioning. One, the Social Navigation Hypothesis, is an adaptationist approach that predicts that depression functions to increase an individual’s ability to analyze and solve problems in their social system. The individual engages in behaviors such as feedback seeking in order to identify potential problems and develop solutions. In contrast, Interpersonal Theory predicts that depression is related to aversive social behaviors that can lead to rejection. Adult American participants (n=155) were recruited from Amazon’s Mechanical Turk. They completed an online survey that took approximately half an hour, and answered questions relating to depressive symptoms, social rejection, social problem-solving, feedback seeking, and social functioning. Depressive symptoms were negatively related to social problem-solving skills, and Excessive Reassurance Seeking was a significant mediator of the positive relationship between depression and social rejection. Negative Feedback Seeking was not a significant mediator of the relationship. Furthermore, rumination was not a mediator of the relationship between depression and social problem-solving. Most participants retrospectively indicated that social functioning was easier for them when they were not depressed. From the current study, there was no compelling evidence that depression functions as an adaptation for social functioning. Although the Social Navigation Hypothesis was not supported by the results of this study, other adaptationist theories of depression remain plausible. Future directions in this area are discussed.
Divergent Residues Within Histone H3 Dictate a Unique Chromatin Structure in Saccharomyces cerevisiae

Histones are among the most conserved proteins known, but organismal differences do exist. In this study, we examined the contribution that divergent amino acids within histone H3 make to cell growth and chromatin structure in Saccharomyces cerevisiae. We show that, while amino acids that define histone H3.3 are dispensable for yeast growth, substitution of residues within the histone H3 α3 helix with human counterparts results in a severe growth defect. Mutations within this domain also result in altered nucleosome positioning, both in vivo and in vitro, which is accompanied by increased preference for nucleosome-favoring sequences. These results suggest that divergent amino acids within the histone H3 α3 helix play organismal roles in defining chromatin structure.
NARROMI: a noise and redundancy reduction technique improves accuracy of gene regulatory network inference

MOTIVATION Reconstruction of gene regulatory networks (GRNs) is of utmost interest to biologists and is vital for understanding the complex regulatory mechanisms within the cell. Despite various methods developed for reconstruction of GRNs from gene expression profiles, they are notorious for high false positive rate owing to the noise inherited in the data, especially for the dataset with a large number of genes but a small number of samples. RESULTS In this work, we present a novel method, namely NARROMI, to improve the accuracy of GRN inference by combining ordinary differential equation-based recursive optimization (RO) and information theory-based mutual information (MI). In the proposed algorithm, the noisy regulations with low pairwise correlations are first removed by using MI, and the redundant regulations from indirect regulators are further excluded by RO to improve the accuracy of inferred GRNs. In particular, the RO step can help to determine regulatory directions without prior knowledge of regulators. The results on benchmark datasets from Dialogue for Reverse Engineering Assessments and Methods challenge and experimentally determined GRN of Escherichia coli show that NARROMI significantly outperforms other popular methods in terms of false positive rates and accuracy. AVAILABILITY All the source data and code are available at: http://csb.shu. edu.cn/narromi.htm.
Hypothermia Reduces Perihemorrhagic Edema After Intracerebral Hemorrhage

Background and Purpose— The prognosis of spontaneous intracerebral hemorrhage (sICH) is poor because of the mass effect arising from the hematoma and the associated peri-hemorrhagic edema, leading to increased intracranial pressure. Because the efficacy of surgical and anti-edematous treatment strategies is limited, we investigated the effects of mild induced hypothermia in patients with large sICH. Methods— Twelve patients with supratentorial sICH >25 mL were treated by hypothermia of 35°C for 10 days. Evolution of hematoma volume and perifocal edema was measured by cranial CT. Functional outcome was assessed after 90 days. These patients were compared to patients (n=25; inclusion criteria: sICH volume >25 mL, no acute restriction of medical therapy on admission) from the local hemorrhage data bank (n=312). Side effects of hypothermia were analyzed. Results— All patients from both groups needed mechanical ventilation and were treated in a neurocritical care unit. All hypothermic patients (mean age, 60±10 years) survived until day 90, whereas 7 patients died in the control group (mean age, 67±7 years). Absolute hematoma size on admission was 58±29 mL (hypothermia) compared to 57±31 mL (control). In the hypothermia group, edema volume remained stable during 14 days (day 1, 53±43 mL; day 14, 57±45 mL), whereas edema significantly increased in the control group from 40±28 mL (day 1) to 88±47 mL (day 14). ICH continuously dissolved in both groups. Pneumonia rate was 100% in the hypothermia group and 76% in controls (P=0.08). No significant side effects of hypothermia were observed. Conclusions— Hypothermia prevented the increase of peri-hemorrhagic edema in patients with large sICH.
The infection of clover root hairs by nodule bacteria studied by a simple glass slide technique.

SUMMARY: A simple glass slide technique has been devised for the continuous microscopical observation of growth and infection of root hairs of clover seedlings. The method involves an aseptic cultivation of seedlings on microscope slides which are partly immersed in a mineral salts medium. The roots are protected by a cover-slip. By this procedure, the root hairs of white clover inoculated with nodule bacteria were studied. The earliest infection was observed to take place within 48 hr. of inoculation, on 4-day-old seedlings. In branched hairs the growth of the thread from a lateral branch towards the hair tip is tentatively explained as an effect of the position of the hair nucleus relative to the site of infection.