Miracle-dz/UniFAR-FTUs huggingface dataset:
Novice principals from Canada and South Africa and share their experiences

In this subproject of the International Study of Principal Preparation that covers the pre-appointment preparation of principals, two groups of novice and relatively inexperienced principals were involved in discussions about their own pre-appointment preparation as principals. A group of Canadian and South African principals shared their views in telephone and online discussions. It emerged that although their contexts differed considerably, they agreed on many points, including the inadequacy of their own preparation to provide them with all the skills they wanted, their appreciation of informal preparation (such as mentoring) and an understanding of the significant role of values in their work. The crosscultural dialogue among the principals confirmed much of the standard view on principalship but showed, not surprisingly, that context is very important in the work of school leaders. That is, it is possible to speak of principals' pre-appointment preparation in general terms, but it is a construct that.
What Mothers Know About Child Development and Parenting in Qatar

Maternal knowledge is important to parenting behaviors, children’s development and well-being. Mothers’ knowledge of child development has been shown to have a significant influence on the way mothers interact with their children and the learning opportunities they provide. This study was carried out to determine the level of maternal knowledge of child development and whether the level of knowledge varies by content area for mothers living in Qatar. The study also examined the relationship between maternal demographic characteristics and general and specific knowledge levels. The sample of mothers (N = 263) completed the Knowledge of Infant Development Inventory (KIDI) together with the Catalog of Previous Experience with Infants (COPE). Findings indicated that mothers’ knowledge about typical child deployment, developmental norms and milestones is poor. Implications in terms of parent education and clinical practice are discussed.
What is Learned in Mental Practice of Motor Skills: A Test of the Cognitive-Motor Hypothesis

To test the cognitive-motor hypothesis, mental practice effects were examined using two tasks judged to differ only in the degree of motor involvement. Male college students (N = 60) learned either the high motor task or the low motor task under conditions of physical practice (PP), mental practice (MP), or no practice (NP). On each task, the PP group received 12 physical trials; the MP group received one physical, nine mental, then two physical trials; and the NP group received one physical trial, a rest period, and then two physical trials. As predicted, the relative effectiveness of mental practice differed between the two tasks. On the low motor task there was no difference between MP and PP and both groups were superior to NP (p < .05). For the high motor task MP was no better than NP and PP was superior to both (p < .05). It was concluded that performance improvement through mental practice takes place predominantly within the cognitive aspects of motor skills.
Ethical practice and methodological considerations in researching body cathexis for fashion products

Purpose – The paper seeks to identify ethical issues arising from body cathexis research and analyse categories for attention. To also highlight methodological considerations in generating body size data through measurement for fashion products.Design/methodology/approach – This study presents instrumental activities and strategies for conducting and implementing focus groups for investigating body cathexis and related body measurements for fashion products. Five homogenous groups of 30 females aged 19‐44 years, were employed. Purposive and proportionate sampling procedures involving both qualitative and quantitative methods were applied and analysed by triangulation. Aspects of the methodology of measurement are presented in this paper but analysis of measurement data is presented in a subsequent paper. Key ethical principles by the Economic and Social Research Council (ESRC), UK have been also evaluated in relation to the integrity of such a study.Findings – The study found that deciding on procedures r.
From Jean-Marie to Marine Le Pen: Electoral Change on the Far Right

In the first round of the 2012 French presidential election, Marine Le Pen drew a record score of 17.9% of the valid votes. Her success was attributed to the ‘de-demonization’ strategy she implemented to soften the party’s image, make it credible on other issues than immigration, and diversify its electoral audience. Survey data from 1988 to 2012 show a more complex picture. Marine Le Pen’s supports are ideologically and socially very similar to her father’s. The only difference is her larger audience among women, especially in the service proletariat. If this erosion of the traditional ‘radical right gender gap’ is confirmed, it could considerably enlarge the National Front’s electoral influence.
The Emerging Viewertariat and BBC Question Time

This paper advances the study of microblogging and political events by investigating how one high-profile broadcast acted as a stimulus to real-time commentary from viewers using Twitter. Our case study is a controversial, high-ratings episode of BBC Question Time, the weekly British political debate show, in October 2009, in which Nick Griffin, leader of the far-right British National Party, appeared as a panelist. The “viewertariat” emerging around such a political event affords the opportunity to explore interaction across media formats. We examine both the structural elements of engagement online and the expressions of collective identity expressed in tweets. Although many concerns noted in previous studies of online political engagement remain (inequality in the propensity to comment, coarseness of tone), we find certain notable characteristics in the sample, especially a direct link between the quantity of tweets and events on the screen, an ability to preempt the arguments offered by panelists, and ways in which viewertariat members add new content to the discussion. Furthermore, Twitter users commenting online express a range of overlapping identities. These complexities challenge broadcasting and political institutions seeking to integrate new, more organic models of engagement.
School-Based Mentoring for Adolescents

Objectives: To evaluate the impact of school-based mentoring for adolescents (11–18 years) on academic performance, attendance, attitudes, behavior, and self-esteem. Method: A systematic review and meta-analysis. The authors searched 12 databases from 1980 to 2011. Eight studies with 6,072 participants were included, 6 were included in meta-analysis. Studies were assessed using the Cochrane Collaboration Risk of Bias Tool. Results: Across outcomes, effect sizes were very small (random effects), and most were not significant. The magnitude of the largest effect (for self-esteem) was close to zero, g = 0.09, [0.03, 0.14]. Conclusions: The mentoring programs included in this review did not reliably improve any of the included outcomes. Well-designed programs implemented over a longer time might achieve positive results.
fiber viability, a novel method for the fast detection of ischemic muscle injury in rats.

Effect of pristine C 60 fullerene aqueous colloid solution (C 60 FAS; 1 mg/kg dose) on the dynamics of fatigue processes in rat soleus muscle after ischemia-reperfusion injury using the tensiometric method was studied. Experiments were conducted during the first 5 h and for 5 days after ischemia. The changes in maximal strength of muscle contraction and its level of generation between the beginning and end of stimulated irritation after intravenous and intramuscular administration of C AS unmodified fullerene aqueous colloid solution were analyzed. The pronounced protective effect of this drug on the dynamics of skeletal muscle contraction was first determined.
Humor Styles Questionnaire: personality and educational correlates in Belgian high school and college students

Studies often treat sense of humour as a unidimensional construct. Recently, however, four different humour styles have been hypothesized and validated by the Humor Styles Questionnaire (HSQ). In the present two studies, first, the HSQ received cross‐cultural validation among French‐speaking Belgian students (94 high school and 87 college students). Second, apart from some similarities (Extraversion, low need for closure), the four humour styles were found to be differently related to personality. Social and self‐enhancing humour styles were positively related to Agreeableness, Openness, and self‐esteem, whereas hostile humour was negatively related to Agreeableness and Conscientiousness. Self‐defeating humour was negatively related to Emotional Stability, Conscientiousness, security in attachment, and self‐esteem. Finally, students' humour styles were neither direct nor indirect predictors of school performance, but self‐defeating and hostile humour styles were typical of students with low school motivation. Copyright © 2002 John Wiley & Sons, Ltd.
Lineage Relationship of Direct-Developing Melanocytes and Melanocyte Stem Cells in the Zebrafish

Previous research in zebrafish has demonstrated that embryonic and larval regeneration melanocytes are derived from separate lineages. The embryonic melanocytes that establish the larval pigment pattern do not require regulative melanocyte stem cell (MSC) precursors, and are termed direct-developing melanocytes. In contrast, the larval regeneration melanocytes that restore the pigment pattern after ablation develop from MSC precursors. Here, we explore whether embryonic melanocytes and MSCs share bipotent progenitors. Furthermore, we explore when fate segregation of embryonic melanocytes and MSCs occurs in zebrafish development. In order to achieve this, we develop and apply a novel lineage tracing method. We first demonstrate that Tol2-mediated genomic integration of reporter constructs from plasmids injected at the 1–2 cell stage occurs most frequently after the midblastula transition but prior to shield stage, between 3 and 6 hours post-fertilization. This previously uncharacterized timing of Tol2-mediated genomic integration establishes Tol2-mediated transposition as a means for conducting lineage tracing in zebrafish. Combining the Tol2-mediated lineage tracing strategy with a melanocyte regeneration assay previously developed in our lab, we find that embryonic melanocytes and larval regeneration melanocytes are derived from progenitors that contribute to both lineages. We estimate 50–60 such bipotent melanogenic progenitors to be present in the shield-stage embryo. Furthermore, our examination of direct-developing and MSC-restricted lineages suggests that these are segregated from bipotent precursors after the shield stage, but prior to the end of convergence and extension. Following this early fate segregation, we estimate approximately 100 embryonic melanocyte and 90 MSC-restricted lineages are generated to establish or regenerate the zebrafish larval pigment pattern, respectively. Thus, the dual strategies of direct-development and MSC-derived development are established in the early gastrula, via fate segregation of the two lineages.
Ettore DNA-Based ) DNA Assay by Using the Versant HCV RNA 3 . 0 ( Branched Human Immunodeficiency Virus Coinfection Liver Specimens and Sera from Patients with Quantification of Hepatitis C Virus ( HCV ) in

10.1128/JCM.41. 7.3046-3050.2003. 2003, 41(7):3046. DOI: J. Clin. Microbiol. Paolo De Paoli Bidoli, Mirna Ros, Giampiero di Gennaro, Guglielmo Nasti and Rosamaria Tedeschi, Eliana Pivetta, Stefania Zanussi, Ettore DNA-Based) DNA Assay by Using the Versant HCV RNA 3.0 (Branched Human Immunodeficiency Virus Coinfection Liver Specimens and Sera from Patients with Quantification of Hepatitis C Virus (HCV) in
Microresonator soliton dual-comb spectroscopy

Shrinking spectrometers Dual-comb spectroscopy is a powerful technique that uses the interference of two closely related combs to map spectroscopic features directly into a frequency domain that can be read by electronics. Suh et al. developed a dual-comb spectroscopy approach using combs produced by silica microresonators fabricated on a silicon chip. Perhaps high-resolution spectroscopy will soon be shrunk to the chip scale, doing away with the need for bulky spectrometers. Science, this issue p. 600 Dual-comb spectroscopy is demonstrated using a pair of silica microresonators. Measurement of optical and vibrational spectra with high resolution provides a way to identify chemical species in cluttered environments and is of general importance in many fields. Dual-comb spectroscopy has emerged as a powerful approach for acquiring nearly instantaneous Raman and optical spectra with unprecedented resolution. Spectra are generated directly in the electrical domain, without the need for bulky mechanical spectrometers. We demonstrate a miniature soliton-based dual-comb system that can potentially transfer the approach to a chip platform. These devices achieve high-coherence pulsed mode locking. They also feature broad, reproducible spectral envelopes, an essential feature for dual-comb spectroscopy. Our work shows the potential for integrated spectroscopy with high signal-to-noise ratios and fast acquisition rates.
Chest X-ray screening improves outcome in lung cancer. A reappraisal of randomized trials on lung cancer screening.

It is believed that population-based screening for cancer should be advocated only when screening reduces disease-specific mortality. Four randomized controlled studies on lung cancer screening have been conducted in male cigarette smokers, and none has demonstrated reduced mortality. Accordingly, no organization that formulates screening policy advocates any specific early detection strategies for lung cancer. Yet, despite this public policy against screening, there is considerable evidence that chest x-ray screening is associated with earlier detection and improved survival. Two randomized trials, the Memorial Sloan-Kettering and Johns Hopkins Lung Projects, were specifically designed to evaluate the effectiveness of sputum cytologic study. Both evaluated the efficacy of the addition of sputum cytologic studies to annual chest radiographs, and both demonstrated that cytologic study did not favorably influence outcome. All individuals in experimental and control groups in both studies had annual chest radiographs. Because survival rates observed in both studies were about three times higher than predicted, based either on the National Cancer Institute's Surveillance Epidemiology and End Results database or based on the American Cancer Society's annual Cancer Statistics, raises the possibility that the periodic chest radiographs performed in all patients in both studies contributed to an improved outcome. In the Mayo Lung Project and in the Czechoslovak study on lung cancer screening, the experimental groups underwent a program of relatively intensive and regular rescreening with chest radiographs and sputum cytologic study, while the control groups underwent either less-frequent rescreening or no rescreening. In both studies, the screened groups achieved meaningful improvements in stage distribution, resectability, and survival. However, increases in cumulative incidence of lung cancer in the experimental group in both studies (which in the Mayo Lung Project reached statistical significance) prevented significant improvements in survival from translating into corresponding reductions in mortality. The possibility that screening may be associated with lung cancer "overdiagnosis" has been widely postulated to account for higher survival and incidence rates and equivalent mortality rates. However, analysis of autopsy information and of disease outcome in individuals with screen-detected early stage lung cancer who do not undergo surgical resection strongly supports the conclusion that screening does not lead to overdiagnosis of lung cancer. Similarly, lead-time and length bias do not adequately account for the differences in cumulative incidence observed in the Mayo and Czech studies. (ABSTRACT TRUNCATED AT 400 WORDS)
A polygon-based approach for matching OpenStreetMap road networks with regional transit authority data

ABSTRACT Matching road networks is an essential step for data enrichment and data quality assessment, among other processes. Conventionally, road networks from two datasets are matched using a line-based approach that checks for the similarity of properties of line segments. In this article, a polygon-based approach is proposed to match the OpenStreetMap road network with authority data. The algorithm first extracts urban blocks that are central elements of urban planning and are represented by polygons surrounded by their surrounding streets, and it then assigns road lines to edges of urban blocks by checking their topologies. In the matching process, polygons of urban blocks are matched in the first step by checking for overlapping areas. In the second step, edges of a matched urban block pair are further matched with each other. Road lines that are assigned to the same matched pair of urban block edges are then matched with each other. The computational cost is substantially reduced because the proposed approach matches polygons instead of road lines, and thus, the process of matching is accelerated. Experiments on Heidelberg and Shanghai datasets show that the proposed approach achieves good and robust matching results, with a precision higher than 96% and a F1-score better than 90%.
CM101 treatment overrides tumor-induced immunoprivilege leading to apoptosis.

CM101, a bacterial polysaccharide exotoxin produced by group B Streptococcus (GBS), also referred to as GBS toxin, has been shown to target pathological neovasculature and activate complement (C3), thereby inducing neovascularitis, infiltration of inflammatory cells, inhibition of tumor growth, and apoptosis in murine tumor models. Data from refractory cancer patients in a Phase I clinical trial with CM101 indicated a similar mechanism of tumor-targeted inflammation. To further our understanding of the mechanism of action of CM101 as an antitumor agent, we examined the role of the inflammatory response in inducing tumor apoptosis in a normal mouse and tumor-bearing mouse model. The i.v. infusion of CM101 into B16BL-6 melanoma tumor-bearing mice elevated p53 mRNA in circulating leukocytes as measured by reverse transcription-PCR, and immunohistochemistry demonstrated infiltration and sequestration of leukocytes. Whole tumor lysates from excised tumors exhibited an increase in binding to the murine p21(Waf1/Cip1) derived p53 DNA binding sequence compared with control whole tumor lysates, in which minimal or no DNA binding was observed. CM101 infusion led to elevated levels of Fas protein within the tumors as well as a decrease in the expression of fas ligand (fasL). Furthermore, tumors were apoptotic as determined by terminal deoxynucleotidyl transferase-mediated nick end labeling and DNA fragmentation assays. Collectively, these data suggest that CM101 up-regulates p53 in tumor-infiltrating leukocytes, initiating a loss of tumor immunoprivilege and consequently rendering the tumor sensitive to Fas/fasL-mediated apoptosis. CM101 induced loss of tumor immunoprivilege through changes in the expression of leukocyte p53, tumor Fas and fasL coupled with neovascularitis and leukocyte infiltration, constitutes a plausible molecular pathway for tumor reduction observed in cancer patients.
Fibroblast Growth Factor 23 in Chronic Kidney Disease: Bridging the Gap between Bone Mineral Metabolism and Left Ventricular Hypertrophy

Background: Left ventricular hypertrophy (LVH) is a major cardiovascular complication in chronic kidney disease (CKD) patients. For a successful management of LVH, the comprehensive understanding of the classical and the new emerging factors associated with LVH is of paramount importance. The aim of the present study was to evaluate the clinical correlates of bone mineral metabolism with the occurrence of LVH in nondialyzed CKD patients. Methods: This cross-sectional study included 96 patients with stages 2–4 CKD. Demographic characteristics, clinical profiles, laboratory tests and transthoracic echocardiogram were performed. Results: LVH was observed in 36% of the patients. Patients with LVH were older, had a higher prevalence of hypertension, and higher levels of intact parathormone, fibroblast growth factor 23 and C-reactive protein. Serum phosphorus, alkaline phosphatase and vitamin D were not associated with the presence of LVH. In the multiple logistic regression analyses only FGF23 remained as a variable independently associated with LVH. Conclusion: We confirmed the high prevalence of LVH in nondialyzed CKD patients and showed that FGF23, an early marker of phosphorus load, was an important factor associated with LVH in these patients. Monitoring of FGF23 could be important for the management of LVH in this population.
Interface dynamics and the motion of complex singularities.

The motion of the interface between two fluids in a quasi-two-dimensional geometry is studied via simulations. We consider the case in which a zero-viscosity fluid displaces one with finite viscosity and compare the interfaces that arise with zero surface tension with those that occur when the surface tension is not zero. The interface dynamics can be analyzed in terms of a complex analytic function that maps the unit circle into the interface between the fluids. The physical region of the domain is the exterior of the circle, which then maps into the region occupied by the more viscous fluid. In this physical region, the mapping is analytic and its derivative is never zero. This paper focuses upon the determination of the nature of the interface and the positions of the singularities of the derivative of the mapping function g. Two kinds of initial conditions are considered: case A, in which the singularities closest to the unit circle are poles; and case B, in which the t=0 interface is described by a function g with only zeros inside the unit circle. In either case, different behaviors are found for relatively smaller and larger surface tensions. In case A, when the surface tension is relatively small, the problem is qualitatively similar with and without surface tension: the singularities move outward and asymptotically approach the unit circle. For relatively large surface tension, the singularities, still polelike, move towards the center of the unit circle instead. In case B, for zero surface tension, the zeros move outward and hit the unit circle after a finite time, whereupon the solution breaks down. For finite but relatively small surface tension, each initial zero disappears and is replaced by a pair of polelike excitations that seem to approach the unit circle asymptotically, while for a relatively large surface tension, each initial zero is replaced by a polelike singularity that then moves towards the unit circle.
Your Chi-Square Test Is Statistically Significant: Now What?.

Applied researchers have employed chi-square tests for more than one hundred years. This paper addresses the question of how one should follow a statistically significant chi-square test result in order to determine the source of that result. Four approaches were evaluated: calculating residuals, comparing cells, ransacking, and partitioning. Data from two recent journal articles were used to illustrate these approaches. A call is made for greater consideration of foundational techniques such as the chi-square tests.