Miracle-dz/UniFAR-FTUs huggingface dataset:
The Effect of the Treatment Time in Diluted Water on the Superconducting Properties of  $\hbox{MgB}_{2}$

MgB2 powders were treated for different amount of time in diluted water (water-ethanol mixture) with two different water-to-ethanol ratios of 12: 18 and 6:24 to investigate the effect of diluted water-treatment on the superconducting properties of MgB2. The diluted water-treatment did not affect the phase composition of the powder. The magnetic moment measurement of both untreated and treated MgB2 powders showed the degradation of irreversible magnetic moment of the powders as the treatment time increases. The change of irreversible magnetic moment was explained by the dissolution of Mg and B into the diluted water during the treatment. The amount of dissolved substances after the treatment measured by chemical analyses (ICP MS) showed that the concentration of B dissolved in the diluted water is much larger than that of Mg, as the treatment time increases. The contact of MgB2 with the water or moisture has to be considered in the design of the superconducting devices based on the MgB2 to prevent the degradation of the superconducting properties of the devices.
Creating false memories: Remembering words not presented in lists.

False memories—either remembering events that never happened, or remembering them quite differently from the way they happened—have recently captured the attention of both psychologists and the public at large. The primary impetus for this recent surge of interest is the increase in the number of cases in which memories of previously unrecognized abuse are reported during the course of therapy. Some researchers have argued that certain therapeutic practices can cause the creation of false memories, and therefore, the apparent "recovery" of memories during the course of therapy may actually represent the creation of memories (Lindsay & Read, 1994; Loftus, 1993). Although the concept of false memories is currently enjoying an increase in publicity, it is not new; psychologists have been studying false memories in several laboratory paradigms for years. Schacter (in press) provides an historical overview of the study of memory distortions. Bartlett (1932) is usually credited with conducting the first experimental investigation of false memories; he had subjects read an Indian folktale, "The War of the Ghosts," and recall it repeatedly. Although he reported no aggregate data, but only sample protocols, his results seemed to show distortions in subjects' memories over repeated attempts to recall the story. Interestingly, Bartlett's repeated reproduction results never have been successfully replicated by later researchers (see Gauld & Stephenson, 1967; Roediger, Wheeler, & Rajaram, 1993); indeed, Wheeler and Roediger (1992) showed that recall of prose passages (including "The War of the Ghosts")
A comparison of input devices in element pointing and dragging tasks

An experiment is described comparing three devices (a mouse, a trackball, and a stylus with tablet) in the performance of pointing and dragging tasks. During pointing, movement times were shorter and error rates were lower than during dragging. It is shown that Fitts’ law can model both tasks, and that within devices the index of performance is higher when pointing than when dragging. Device differences also appeared. The stylus displayed a higher rate of information pmeessing than the mouse during pointing but not during dragging. The trackball ranked third for both tasks,
Using Culturally Responsive Practices to Broaden Participation in the Educational Pipeline: Addressing the Unfinished Business of Brown in the Field of Computing Sciences

Abstract:The effective integration of African American students into previously segregated careers was one of the main goals of the Brown decision and, in turn, the outcomes of such efforts have been the subject of much scholarly interest). This qualitative study, drawing on critical race theorist Derrick Bell’s critique of Brown, makes the case for applying culturally relevant pedagogy theory (CRPT) to positively impact student achievement and career choice, particularly as it relates to the STEM field of computing sciences. Cultural barriers such as early exposure to technology, students’ perceptions of their own potential in the field, and the lack of culturally relevant social support, often deter African American students from pursuing careers in STEM fields, particularly computing sciences. Although there is a dearth in the literature regarding how to expand the pipeline to computing sciences using culturally specific practices, this study produced results that suggest culturally responsive practices as an effective method for broadening participation in computing. Using CRPT, this qualitative study identifies culturally relevant practices that positively affect the persistence of African Americans in the STEM field of computing science.
Determination of true ileal amino acid digestibility and the endogenous amino acid outputs associated with barley samples for growing-finishing pigs by the regression analysis technique.

This study was conducted to determine true ileal AA digestibility coefficients and the endogenous AA outputs associated with barley samples for growing-finishing pigs using the regression analysis technique with dual digestibility markers. Six barrows, with 30.5 and 58.6 kg average initial and final BW, were fitted with a simple T-cannula at the distal ileum and fed six barley-based diets at close to ad libitum feed intake according to a 6 x 6 Latin square design. The six diets contained 97% of six barley samples varying from low to high in CP and AA contents (8.5, 9.2, 9.8, 11.5, 12.6, and 15.6% CP, respectively, on DM basis). The dietary NDF content ranged from 16.8 to 23.8% on DM basis. Chromic oxide (Cr2O3) and acid-insoluble ash (AIA) were used as digestibility markers. Each experimental period lasted 7 d. Ileal digesta were collected, at 2-h intervals, for a total of 24 h during d 6 and 7. There were linear relationships (P < 0.01) between dietary contents of apparent ileally digestible and total CP and AA as determined by using either Cr2O3 or AIA as a digestibility marker. The use of Cr2O3 vs AIA affected (P < 0.01) the determination of true ileal AA digestibility coefficients and the endogenous CP and AA outputs. However, there were no differences (P > 0.01) in the true ileal AA digestibility coefficients in barley samples between this study and the average values reported in the literature. The endogenous CP and AA outputs determined in this study were higher (P < 0.01) than reported values (35.1+/-3.0 vs 14.7+/-1.1 g CP/kg DMI). It is concluded that dual digestibility markers should be used to measure true ileal AA digestibility coefficients and endogenous AA outputs when dietary fiber content is high and the ileal digesta is collected through a simple T-cannula in the pig. True rather than apparent ileal AA digestibility coefficients determined in barley samples should be used in diet formulation for swine. The gastrointestinal endogenous AA secretion, recycling, and output losses are important in whole-body AA utilization and homeostasis, especially when fiber-enriched diets are fed to growing-finishing pigs.
Resource aware programming in the Pixie OS

This paper presents Pixie, a new sensor node operating system designed to support the needs of data-intensive applications. These applications, which include high-resolution monitoring of acoustic, seismic, acceleration, and other signals, involve high data rates and extensive in-network processing. Given the fundamentally resource-limited nature of sensor networks, a pressing concern for such applications is their ability to receive feedback on, and adapt their behavior to, fluctuations in both resource availability and load. The Pixie OS is based on a dataflow programming model based on the concept of resource tickets, a core abstraction for representing resource availability and reservations. By giving the system visibility and fine-grained control over resource management, a broad range of policies can be implemented. To shield application programmers from the burden of managing these details, Pixie provides a suite of resource brokers, which mediate between low-level physical resources and higher-level application demands. Pixie is implemented in NesC and supports limited backwards compatibility with TinyOS. We describe Pixie in the context of two applications: limb motion analysis for patients undergoing treatment for motion disorders, and acoustic target detection using a network of microphones. We present a range of experiments demonstrating Pixie's ability to accurately account for resource availability at runtime and enable a range of both generic and application-specific adaptations.
Teaching Writing Through Peer Revising and Reviewing

TEACHING WRITING THROUGH PEER REVISING AND REVIEWING Kristi Lundstrom Linguistics and English Language Master of Arts Although peer review, in which students evaluate each others’ papers, has been shown to be beneficial in many writing classrooms, the benefits of peer review to the reviewer, or the student giving the feedback, has not been thoroughly investigated in the field of second language (L2) writing. The purpose of this study is to determine which is more beneficial to improving student writing: receiving or giving peer feedback. The study was conducted at the English Language Center (ELC) at Brigham Young University (BYU). Ninety-one students in nine writing classes at two different proficiency levels, high beginning and high intermediate, participated in the study. The treatment groups reviewed anonymous papers, but received no peer feedback over the course of the semester, while the control groups received feedback, but did not review other students’ papers. Writing samples collected at the beginning and end of the semester were used to evaluate which of the two methods most helped student writers. In addition, a short survey was conducted to investigate the correlation between student attitudes and demographic information and these results. Results of a series of t-tests indicated that the treatment groups, which focused solely on reviewing peers’ writing, made more significant gains in their writing over the course of the semester than the control groups. These results were also more significant at the lower than the higher proficiency level. Students’ level of comfort with the writing process and desire to learn how to use feedback were found to be significant predictors of these results.
Language and Power: An Introduction to Institutional Discourse

1. Introduction 2. Institutional Discourse / Approaches to the analysis of institutional discourse 3. University Discourse 4. Prison Discourse 5. News as Institutional Discourse: Commercialization in the Press 6. Multiculturalism in the Regional Press through the Language of Capitalism 7. War memorials 8. Defense Speeches 9. How to Analyse Institutional Discourse.
THE RELATIONSHIPS BETWEEN MATH ANXIETY, MATH ATTITUDES, AND SELF-EFFICACY: A STRUCTURAL EQUATION MODEL

The purpose of this study is to examine the relationships between math anxiety, math attitudes, and self-efficacy. Participants were 372 university students who were enrolled in Sakarya University, in Turkey. In this study, the Revised Mathematics Anxiety Rating Scale, the Mathematics Attitudes Scale, and the Self-efficacy Scale were used. Using correlation analysis, math anxiety was found negatively related to positive attitudes and self-efficacy and positively to negative attitudes. On the other hand, positive attitudes were found positively associated with self-efficacy and negatively with negative attitudes. According to the path analysis results, positive attitudes were predicted positively and negative attitudes predicted negatively by self-efficacy. Also, self-efficacy and positive attitudes predicted math anxiety in a negative way and negative attitudes predicted math anxiety in a positive way. Results were discussed in the light of
An Examination of Dimensions of Psychological Empowerment Scale for Service Employees

In the present study the dimensions and factorial structure of the Psychological Empowerment Scale for a sample of 173 restaurant service employees from 20 restaurants in the USA were analyzed, using principal axis factor analysis. The analysis indicated a two-factor solution for the scale with Cronbach α of . 91 and . 89. These factors were labeled Attitude and Influence and accounted for approximately 63% of the common variance. This differed from the original four-factor structure of Spreitzer and in two studies by Fulford and Enz in 1995 and by Hancer and George in 2003, a three-factor structure. Implications for research and recommendations are presented.
Autoimmune Th2-mediated dacryoadenitis in MRL/MpJ mice becomes Th1-mediated in IL-4 deficient MRL/MpJ mice.

PURPOSE MRL/MpJ mice of substrains MRL/MpJ-fas(+)/fas(+) (MRL/+) and MRL/MpJ-fas(lpr)/fas(lpr) (MRL/lpr) spontaneously develop autoimmune dacryoadenitis and sialadenitis and are a model for the human disorder Sjögren syndrome. The dacryoadenitis in both substrains appears to be Th2 in nature, with little IFN-gamma and substantial IL-4 at the site of lacrimal gland inflammation. METHODS MRL/MpJ mice with a defective IL-4 gene-both MRL/+-IL-4(tm)/IL-4(tm) (MRL/+/IL-4(tm)) and MRL/lpr-IL-4(tm)/IL-4(tm) (MRL/lpr-IL-4(tm))-that resulted in a loss of IL-4 production were bred and evaluated for dacryoadenitis. RESULTS MRL/+/IL-4(tm) and MRL/lpr/IL-4(tm) mice developed dacryoadenitis of similar onset, appearance, and severity as found in MRL/MpJ mice with an intact IL-4 gene. Immunohistochemistry examination revealed a substantially greater number of inflammatory cells staining for IFN-gamma than for IL-13 in the dacryoadenitis of IL-4-deficient MRL/MpJ mice (MRL/+/IL-4(tm), 66% vs. 0.8%, P = 0.001; MRL/lpr/IL-4(tm), 67% vs. 1.2%, P = 0.002). Real-time PCR demonstrated greater amounts of IFN-gamma than IL-13 mRNA relative transcripts in lacrimal glands of MRL/lpr/IL-4(tm) mice (mean difference, 28.6; P = 0.035). Greater CD86 (B7-2) than CD80 (B7-1) expression was present in MRL/+/IL-4(tm) mice (11% vs. 3%, P = 0.003) and MRL/lpr/IL-4(tm) mice (10% vs. 3%, P = 0.002). CONCLUSIONS These results suggest that a Th2 autoimmune process can be converted to a Th1 process in the absence of IL-4.
Examination of Haematotoxicity of Fixed-Dose Highly Active Antiretroviral Drug in Albino Wistar Rats

Highly active antiretroviral therapy (HAART) is considered toxic and has other life-threatening side effects. Our aim was to evaluate the haematotoxic effects of lamivudine, zidovudine, and nevirapine fixed-dose combinations in Albino Wistar rats. Fifty (50) three (3) months old male Albino Wistar rats weighing between 200 and 250 g were randomly assigned to five (5) groups (A, B, C, D, and E). Group A served as control. Two (2 mLs) of venous blood was aseptically collected on Days 5, 10, 15, 20, and 25 of treatment. Red blood cell (RBC) mean value recorded statistically significant increase (P < 0.05) in groups B and C when compared with the control group on Day 5. However, there was a statistically significant decrease (P < 0.05) in RBC, haemoglobin concentration (Hb), packed cell volume (PCV), and some red cell indices on Day 10. In addition there was no statistically significant difference (P > 0.05) in all the parameters evaluated when the test group was compared with the control on Day 25. Furthermore, there was a time-related statistically significant increase (P < 0.05) in the two major blood cells—RBC and platelet counts. From the result of this present study, it can be concluded that HAART when administered in fixed-dose combinations have no subacute haematotoxic effects.
Globalization and Language Learning in Rural Japan: The Role of English in the Local Linguistic Ecology.

Drawing on a study of current language use in a rural community in Japan, we question to what extent English actually does serve today as a lingua franca in multilingual, internationally diverse communities. Specifically, we report on a critical ethnography of a small Japanese community with a growing number of non—English-speaking immigrants, largely from Brazil but also from China, Peru, Korea, and Thailand. We investigate how people in the community view and engage in local linguistic diversity and how this is related to their subjectivities and to their experiences in learning and using English. We analyzed the public report of a community survey on diversity conducted by the city and interviewed three Japanese volunteer leaders who are teachers and learners of English and two Japanese who study Portuguese in order to support the local Brazilian migrant workers. Based on our findings, we highlight four emergent themes that provide insights into the significance of learning English in a linguistically diverse context. We also discuss the pedagogical implications of the local linguistic ecology for the teaching and learning of English.
Satellite cells attract monocytes and use macrophages as a support to escape apoptosis and enhance muscle growth

Once escaped from the quiescence niche, precursor cells interact with stromal components that support their survival, proliferation, and differentiation. We examined interplays between human myogenic precursor cells (mpc) and monocyte/macrophages (MP), the main stromal cell type observed at site of muscle regeneration. mpc selectively and specifically attracted monocytes in vitro after their release from quiescence, chemotaxis declining with differentiation. A DNA macroarray–based strategy identified five chemotactic factors accounting for 77% of chemotaxis: MP-derived chemokine, monocyte chemoattractant protein-1, fractalkine, VEGF, and the urokinase system. MP showed lower constitutive chemotactic activity than mpc, but attracted monocytes much strongly than mpc upon cross-stimulation, suggesting mpc-induced and predominantly MP-supported amplification of monocyte recruitment. Determination of [3H]thymidine incorporation, oligosomal DNA levels and annexin-V binding showed that MP stimulate mpc proliferation by soluble factors, and rescue mpc from apoptosis by direct contacts. We conclude that once activated, mpc, which are located close by capillaries, initiate monocyte recruitment and interplay with MP to amplify chemotaxis and enhance muscle growth.
Periodontal Conditions of Abutments and Non‐Abutments in Removable Partial Dentures over 7 Years of Use

PURPOSE To evaluate the periodontal conditions and integrity of abutment and non-abutment teeth of patients evaluated 7 years after insertion of the removable partial denture (RPD). MATERIALS AND METHODS Twenty-two patients (17 women, 5 men) were assessed at the moment of denture insertion and 7 years later. The following items were verified in each assessment: bleeding on probing (BP), probing depth (PD), gingival recession (GR), and mobility (M), comparing direct and indirect abutment teeth, and the teeth not involved in the denture design. Tooth integrity was also evaluated and classified as intact when no caries or fractures were observed. The Kruskal-Wallis test was used to reveal statistical significance between the groups (p = 0.05) as well as the Bonferrroni-corrected Mann-Whitney test for post hoc comparison. The Wilcoxon test was used for evaluation within the group over time. Fisher's exact test was applied to cross data about abutment integrity. RESULTS Statistically significant differences were found for GR (baseline, p < 0.001; 7 years, p < 0.001) and PD (baseline, p = 0.001; 7 years = 0.004) between the three groups at baseline and after 7 years of follow-up. Mean BP and M values increased from initial assessment to after 7 years of RPD use in every group, but no statistically significant difference was found between the groups. For abutment integrity, a statistically significant difference (p = 0.028) was observed, and the direct abutment exhibited more (33.3%) caries and fractures. CONCLUSION RPDs generated more periodontal damage to direct abutments, since higher gingival recession probing depth indexes, and presence of caries and fractures were observed in comparison to indirect abutments and non-abutments.
Oxidative Stress, Cytotoxicity, and Genotoxicity Induced by Methyl Parathion in Human Gingival Fibroblasts: Protective Role of Epigallocatechin-3-Gallate

Organophosphorous (OP) compounds are pesticides frequently released into the environment because of extensive use in agriculture. Among these, methyl parathion (mPT) recently received attention as a consequence of illegal use. The predominant route of human exposure to mPT is via inhalation, but inadvertent consumption of contaminated foods and water may also occur. The goal of this study was to investigate the in vitro effects of mPT on cells in the oral cavity and evaluate the potential protective role of epigallocathechin-3-gallate (EGCG) on these effects. Human gingival fibroblasts (HGF) were exposed to 10, 50, or 100 μg/ml mPT for 24 h and assessed for oxidative stress, as evidenced by reactive generation of oxygen species (ROS), induction of apoptotic cell death, DNA damage (comet assay and cytochinesis-block micronucleus test), and nitric oxide (NO) production. The results showed that mPT produced significant oxidative stress, cytotoxicity, and genotoxicity and increased NO levels through stimulation of inducible NO synthase expression. Finally, data demonstrated that EGCG (10, 25, or 50 μM) was able to inhibit the pesticide-induced effects on all parameters studied. Data indicate that cytotoxic and genotoxic effects may be associated with oxidative stress induced by mPT observed in HGF cultures and that EGCG plays a protective role via antioxidant activities.
Visual Processing in Disparity Vergence Control

Disparity vergence refers to the oculomotor control system that maintains horizontal, vertical, and torsional eye alignment based on retinal image disparity. It has both voluntary and involuntary aspects,1–4 but voluntary control seems limited to the horizontal component.2 Vertical disparity vergence appears to be completely reflexive: its gain is uninfluenced by attention or effort, and observers cannot normally detect the direction of vertical disparity. The control system for reflexive disparity vergence may represent a distinct aspect of visual processing with characteristics that differ from those measured with psychophysics or with voluntary eye movements. Vertical disparity vergence measurements provide a tool for studying this aspect of visual processing. Our general research question can be stated informally as whether the reflexive and voluntary aspects of vergence “see” the same things. Specifically, we compare voluntary, horizontal vergence responses to reflexive, vertical vergence responses using a variety of visual stimuli. In this study we compared horizontal and vertical vergence responses to luminance-modulated (“first-order”) and contrast-modulated (“second-order”) grating stimuli.