Miracle-dz/UniFAR-FTUs huggingface dataset:
Politeness, Humor and Gender in the Workplace: Negotiating Norms and Identifying Contestation

Abstract After first considering some of the challenges of defining and measuring the concept of politeness, the analysis draws on data from the Wellington Language in the Workplace Project to illustrate the value of complementary quantitative and qualitative approaches to the issue of what it means to be polite at work. Using the concept of relational practice, an analysis of workplace humor serves to illustrate what each approach offers in terms of distinguishing different communities of practice, as well as providing a means of exploring the issue of politeness as a gendered concept. Instances of how two women leaders use humor in their very different communities of practice exemplify the diversity of ways of responding to gendered interactional workplace norms.
New Families of Triple Error Correcting Codes with BCH Parameters

Discovered by Bose, Chaudhuri and Hocquenghem, the BCH family of error correcting codes are one of the most studied families in coding theory. They are also among the best performing codes, particularly when the number of errors being corrected is small relative to the code length. In this article we consider binary codes with minimum distance of 7. We construct new families of codes with these BCH parameters via a generalisation of the Kasami-Welch Theorem.
Modified polyphone decision tree specialization for porting multilingual Grapheme based ASR systems to new languages

Automatic speech recognition (ASR) systems have been developed only for a very limited number of the estimated 7,000 languages in the world. In order to avoid the evolvement of a digital divide between languages for which ASR systems exist and those without one, it is necessary to be able to rapidly create ASR systems for new languages in a cost efficient way. Grapheme based systems, which eliminate the costly need for a pronunciation dictionary, have been shown to work for a variety of languages. They are thus destined for porting ASR systems to new languages. This paper studies the use of multilingual grapheme based models for rapidly bootstrapping acoustic models in new languages. The cross language performance of a standard, multilingual (ML) acoustic model on a new language is improved by introducing a new, modified version of polyphone decision tree specialization that improves the performance of the ML models by up to 15.5% relative.
Felder and Silverman's Index of Learning Styles and Honey and Mumford's Learning Styles Questionnaire: How do they compare and do they predict academic performance?

Samples of engineering and business students at undergraduate, postgraduate and post-experience levels at two UK universities completed the Index of Learning Styles (ILS) (N = 284) or the (Learning Styles Questionnaire LSQ) (N = 182) and a biographical data questionnaire. Broad psychological aspects of the two learning style instruments are examined and compared. Psychometric properties of the instruments, including factor structure, internal reliability and inter-scale correlation are analysed. Potential limitations are commented on, in particular those related to the construct validity and relatively low internal reliability of the ILS scales (alpha = 0.41 to 0.65). These compare with alphas of 0.59 to 0.74 for the LSQ. Relationships between the scales are discussed and a circumplex arrangement of the LSQ is proposed. Proposals for augmenting the circumplex are made. Academic performance results and scores on each of the two instruments are compared. The general lack of significant correlations between learning style scores and performance in these samples is discussed. Conclusions are drawn about the disappointing psychometric robustness of the measures, the activity-centred nature of learning styles and the advantages of viewing styles as a circumplex.
STAGED ANGIOPLASTY FOR CAROTID ARTERY STENOSIS TO PREVENT POSTOPERATIVE HYPERPERFUSION

OBJECTIVE Hyperperfusion (HP) is a rare but potentially devastating complication after carotid revascularization. This report describes the clinical efficacy of staged angioplasty (SAP) for carotid artery stenosis to prevent HP after carotid revascularization. METHODS Eighteen of 143 patients with high-grade internal carotid artery stenosis scheduled for angioplasty were considered at high risk of postprocedure HP based on their severely impaired cerebral blood flow (CBF) and cerebral vasoreactivity, which were determined using single-photon emission computed tomography with acetazolamide. Nine of the high-risk patients were treated with carotid artery stenting and the other 9 were treated with SAP, which consisted of balloon angioplasty with undersized balloon catheters (Stage 1) followed by carotid artery stenting 1 to 2 months later (Stage 2). RESULTS In the regular carotid artery stenting group, 5 of 9 patients (56%) showed HP phenomenon on single-photon emission computed tomography just after stenting, and 1 patient (11%) developed status epilepticus owing to HP. In the SAP group, none of the 8 patients treated by SAP or the 1 patient who required stent placement during the first stage owing to a wall dissection developed postprocedure HP phenomenon or HP syndrome. CONCLUSION SAP decreased the HP phenomenon on single-photon emission computed tomography after performing these procedures in selected patients. Although additional intervention is needed, SAP is considered a relatively simple and effective method to avoid HP in patients at high risk of HP after carotid revascularization.
The mysterious case of the pervasive choice biography: Ulrich Beck, structure/agency, and the middling state of theory in the sociology of youth

This paper explores the emergence of the concept of choice biography, as it is linked to the work of Ulrich Beck, in youth research. The concept has been called a current pervasive theoretical orthodoxy. However, this article argues that the concept is most often taken up to critique, and Beck used mostly as a foil, through arguing that he overemphasizes agency and neglects structural constraints, in establishing or occupying a middle-ground theoretical position between structure and agency. I propose that the relationship and balance between structure and agency is of little interest to Beck and aim to discourage forcing his work into this frame. Instead of focusing on a shift towards agency, and proposing the concept of choice biographies to understand the shift, Beck is making the more complicated claim that at the very moment, and through the same processes, that some of the constraints placed on people are breaking down, the predictability and security that would allow these new options to function as deliberate choices also weaken. More importantly, Beck asks the question of whether the concepts developed by twentieth-century sociology are up to the task of theorizing the contemporary world.
Physical properties of denture base resins potentially resistant to Candida adhesion.

PURPOSE The addition of anionic charge on denture base resins has been shown to inhibit Candida albicans adhesion and to facilitate adsorption of salivary defense molecules. The aim of this study was to evaluate the physical properties of a modified denture base resin for denture fabrication. MATERIALS AND METHODS Specimens made from heat polymerizing resin Lucitone 199 were used as the control group. The two experimental groups, E-10 and E-20, had 10% and 20%, respectively, of the monomer substituted with an experimental phosphate-containing monomer. Flexural strength and modulus, water sorption, solubility, and color stability tests were conducted to ensure compliance with ADA specification No. 12. Water diffusion coefficient into the resins and stainability were also assessed. ANOVA and Scheffé tests were performed for statistical significance. RESULTS There was an overall decline in all properties with the addition of the experimental phosphate compound. The flexural strength and modulus, water sorption and solubility for E-10, as well as the control were, however, within the ADA specifications. The diffusion coefficients were significantly different (p < 0.05) for the three groups. Staining and color specimens showed no significant difference (p > 0.05) among the three groups. CONCLUSIONS Within the limitations of this study, the physical properties of the phosphate denture base resin at 10% should be suitable for denture fabrication based on the properties assessed.
Four Techniques for Reducing Pseudovolunteering

This study examined the effectiveness of four techniques for reducing pseudovolunteering: signing-up for research participation and not showing up. 117 undergraduate students participated in a reminder tab, reminder telephone call, immediate additional credit, personal solicitation, or control condition as part of their research participation. Chi-squared analyses indicated that, compared to the control group, only phone calls were effective in improving rate of showing up. Implications for obtaining a desired sample size are discussed.
Evaluation of the arrhythmogenicity of a low dose of acepromazine: comparison with xylazine.

Alteration in the arrhythmogenic dose of epinephrine (ADE) was determined in 6 healthy dogs under halothane anesthesia following the administration of xylazine at 1.1 mg/kg i.v. and acepromazine at 0.025 mg/kg i.v. The order of treatment was randomly assigned with each dog receiving both treatments and testing was carried out on 2 separate occasions with at least a 1 wk interval. The ADE determinations were made prior to drug administration during halothane anesthesia (CNTL) and then 20 min and 4 h following drug treatment. Epinephrine was infused for 3 min at increasing dose rates (2.5, 5.0, 10.0 micrograms/kg/min) until the arrhythmia criterion (4 or more intermittent or continuous premature ventricular contractions) was reached within the 3 min of infusion or the 1 min following cessation. The interinfusion interval was 20 min. There was a significant difference (P = 0.0001) in the ADE determined following acepromazine administration at 20 min (20.95 micrograms/kg +/- 2.28 SEM) compared to CNTL (6.64 micrograms/kg +/- 1.09), xylazine at 20 min (5.82 micrograms/kg +/- 0.95) and 4 h (6.13 micrograms/kg +/- 1.05), and acepromazine at 4 h (7.32 micrograms/kg +/- 0.34). No other significant differences existed (P < 0.05). In this study we were unable to show any sensitization to epinephrine following xylazine administration during halothane anesthesia, while a protective effect was shown with a low dose of acepromazine.
Wrapper-Based DWT-GMM for Image Segmentation

The paper describes a wrapper approach that applies Gauss mixture model into image segmentation, solving the problems of slow segmentation speed, fuzzy contour of the object of interest. By wrapping the feature selection algorithm inside the classifier, i.e, introducing wavelet transform while using EM algorithm to calculate the parameters of GMM image segmentation model, it can get more multi-scale feature information of images, and hence reducing the number of iteration and enhancing the efficiency of image segmentation. The performance of the wrapper-based image segmentation is shown on real-world which proves that the algorithm has better effect of image segmentation.
Accurate and fast extraction of planar surface patches from 3D point cloud

Planar surface patches, extracted for instance from a captured 3D point cloud, play an important role as a feature in modeling and/or recognizing objects and environments. In terms of extracting such planar surface patches, the main technical issue involved may be of overcoming the trade-off between the modeling accuracy and the computational efficiency, especially, when the 3D point cloud captured is noisy. Conventionally, they have taken approaches that seek either for high computational efficiency at the expense of modeling accuracy or vice versa. This paper contributes the advancement in the methodology of extracting planar surface patches from a noisy 3D point cloud by presenting a method that provides high modeling accuracy yet under low computational cost. The major contribution of the proposed method is summarized as follows: 1) A robust estimation of surface normal vectors in such a way as to minimize the effect of noise in the data. 2) An accurate localization of density peaks based on a spherical coordinate operator with a flexible size of sliding window used for estimating the density of surface normal vectors represented on a unit spherical surface as a means of accurately identifying those planar surface patches of the same orientation. 3) A segmentation of individual planar surface patches of the same orientation by projecting those 3D points clustered as belonging to a same peak onto x, y and z axes of the Cartesian coordinate with the Y axis representing their orientation. The experimental results show the effectiveness of the proposed method in comparison with conventional ones for various indoor and outdoor images.
Speculations on teacher education: recommendations from research on teachers’ cognitions

This paper was written at the request of the Journal's editor, Professor Edgar Stones, who challenged us to translate a review of literature on teachers’ pedagogical thoughts, judgments, decisions and behavior (Shavelson and Stern, 1981) into recommendations for teacher education. We took up the challenge with some trepidation, knowing full well the pitfalls we faced in translating research into recommendations for practice. We approach our task cautiously by first discussing the assumptions underlying research on teachers’ thinking and decisions. Then, we summarize methods and findings from research on planning of instruction, judgments and decisions during recitation, and the link between decisions and behavior because they imply changes in typical teacher education programs. Finally, recommendations are made for teacher education. We recommend that teacher educators consider adopting the decision‐making schema as a conceptual framework for organizing their programs. Such a schema implies a ‘reasonable’.
Enhanced torque control in a DFIG connected to a DC grid by a diode rectifier

This paper considers the control of a doubly fed induction machine (DFIG) connected to a dc-bus or dc-grid by using a diode rectifier placed on the stator-side and a single PWM converter on the rotor. In this system, the torque and the frequency have to be regulated simultaneously, in order to make the prime mover operating at the maximum power point and to guarantee at the same time a flux level near the rated value. Since this system is based on a unique reduced-power controlled converter and a diode rectifier, a noticeable reduction of the costs of the power electronics can be achieved. However, the diode bridge causes stator current and voltage harmonics which produce a noticeable torque ripple. A regulation scheme able to reduce the torque ripple is proposed in this paper: resonant current controllers are implemented to track the sixth harmonic components in the reference rotor current commands, in such a way to kill the corresponding harmonic in the electromagnetic torque.
Refolding and Enzyme Kinetic Studies on the Ferrochelatase of the Cyanobacterium Synechocystis sp. PCC 6803

Heme is a cofactor for proteins participating in many important cellular processes, including respiration, oxygen metabolism and oxygen binding. The key enzyme in the heme biosynthesis pathway is ferrochelatase (protohaem ferrolyase, EC 4.99.1.1), which catalyzes the insertion of ferrous iron into protoporphyrin IX. In higher plants, the ferrochelatase enzyme is localized not only in mitochondria, but also in chloroplasts. The plastidic type II ferrochelatase contains a C-terminal chlorophyll a/b (CAB) motif, a conserved hydrophobic stretch homologous to the CAB domain of plant light harvesting proteins and light-harvesting like proteins. This type II ferrochelatase, found in all photosynthetic organisms, is presumed to have evolved from the cyanobacterial ferrochelatase. Here we describe a detailed enzymological study on recombinant, refolded and functionally active type II ferrochelatase (FeCh) from the cyanobacterium Synechocystis sp. PCC 6803. A protocol was developed for the functional refolding and purification of the recombinant enzyme from inclusion bodies, without truncation products or soluble aggregates. The refolded FeCh is active in its monomeric form, however, addition of an N-terminal His6-tag has significant effects on its enzyme kinetics. Strikingly, removal of the C-terminal CAB-domain led to a greatly increased turnover number, kcat, compared to the full length protein. While pigments isolated from photosynthetic membranes decrease the activity of FeCh, direct pigment binding to the CAB domain of FeCh was not evident.
Diversity of cultivated and metabolically active aerobic anoxygenic phototrophic bacteria along an oligotrophic gradient in the Mediterranean Sea

Aerobic anoxygenic phototrophic (AAP) bacteria play significant roles in the bacterioplankton productivity and biogeochemical cycles of the surface ocean. In this study, we applied both cultivation and mRNA-based molecular methods to explore the diversity of AAP bacteria along an oligotrophic gradient in the Mediterranean Sea in early summer 2008. Colony-forming units obtained on three different agar media were screened for the production of bacteriochlorophyll-a ( BChl-a), the light-harvesting pigment of AAP bacteria. BChl-a-containing colonies represented a low part of the cultivable fraction. In total, 54 AAP strains were isolated and the phylogenetic analyses based on their 16S rRNA and pufM genes showed that they were all affiliated to the Alphaproteobacteria. The most frequently isolated strains belonged to Citromicrobium bathyomarinum, and Erythrobacter and Roseovarius species. Most other isolates were related to species not reported to produce BChl-a and/or may represent novel taxa. Direct extraction of RNA from seawater samples enabled the analysis of the expression of pufM, the gene coding for the M subunit of the reaction centre complex of aerobic anoxygenic photosynthesis. Clone libraries of pufM gene transcripts revealed that most phylotypes were highly similar to sequences previously recovered from the Mediterranean Sea and a large majority ( similar to 94%) was affiliated to the Gammaproteobacteria. The most abundantly detected phylotypes occurred in the western and eastern Mediterranean basins. However, some were exclusively detected in the eastern basin, reflecting the highest diversity of pufM transcripts observed in this ultra-oligotrophic region. To our knowledge, this is the first study to document extensively the diversity of AAP isolates and to unveil the active AAP community in an oligotrophic marine environment. By pointing out the discrepancies between culture-based and molecular methods, this study highlights the existing gaps in the understanding of the AAP bacteria ecology, especially in the Mediterranean Sea and likely globally.
Developmental Expression of Myelin Protein Genes in Dysmyelinating Mutant Mice: Analysis by Nuclear Run‐Off Transcription Assay, In Situ Hybridization, and Immunohistochemistry

Abstract: Gene expression for myelin proteolipid protein (PLP) and myelin basic protein (MBP) in the dysmyelinating mutant mice shiverer and jimpy was analyzed by nuclear run‐off transcription assay, in situ hybridization, and immunohistochemistry. The level of PLP transcription in shiverer brains was lower than that in controls at postnatal day 18 but relatively higher at later stages. In spite of the considerable amount of hybridization with PLP cDNA, immunoreaction for PLP was greatly reduced in shiverer mice throughout their lives, probably owing to a defect in the assembly of PLP into myelin. Abnormal deposition of PLP in oligodendroglial cell bodies suggested that transport of PLP to myelin is delayed in shiverer brains. The number of oligodendrocytes expressing PLP mRNA was drastically reduced in jimpy mice. MBP mRNA in jimpy mice is localized preferentially in oligodendroglial cell bodies, a result suggesting that oligodendrocytes in jimpy are mostly the immature type. Although transcriptional activity of the MBP gene in jimpy was greatly reduced, a finding reflecting the decrease in the number of mature oligodendrocytes, that of the PLP gene remained high at early stages. The discrepancy of the two gene expressions is discussed relative to the role of PLP transcripts at early stages of myelination.
An Essay on the Nature and Conduct of the Passions and Affections, with Illustrations on the Moral Sense (review)

With the reintroduction of Hume's philosophical works in the form of the Green and Gross editions, and the concomitant decline of the British Hegelians about a century ago, respect for Hume's philosophical talent rose enormously. Our respect and admiration for Hume's genius, whether we entirely agree with his work or not, has been a sustained, perhaps ever growing, philosophical attitude throughout the time since. However, we have been much slower to recapture and appreciate the philosophical discourse that helped to shape Hume's thought. One can, I think, argue that doing justice, in a historical sense as well as a moral sense, requires sufficient attention to Hume's immediate predecessors. And perhaps the most important figure in that sense is Francis Hutcheson, for even the most cursory study of Hutcheson's works reveals and sheds much light on where Hume found many ideas on the moral sense and moral psychology, as well as ideas concerning the very nature of moral philosophy as a discipline of inquiry. Yet, Hutcheson's works have not been widely available, nor very critically reprinted in our time. Serious scholars of Hutcheson have typically looked to the Hildesheim edition of Hutcheson collected works (seven volumes, Hildesheim: Olms, 1969-1971). But that multi-volume set is really nothing but a facsimile edition, offering no critical apparatus. Peter Kivy produced a helpful critical edition of Hutcheson's Inquiry Concerning Beauty (The Hague: Martinus Nijhoff, 1973), but that edition neglected the second of Hutcheson's inquiries, the one on moral good and evil. And Bernard Peach presented an edition of the Illustrations on the Moral Sense (Cambridge: Harvard University Press, 1971), an edition which made no real claim to being fully critical and which, for whatever reasons, chose to overlook the Essay on the Nature and Conduct ofthe Passions and Affections, which was bound with the Illustrations as a single volume in Hutcheson's time. And, interesting to note, the most helpful of critical editions of Hutcheson, at least to date and as evidenced by the footnotes of the scholars who work on Hutcheson, has been the editions produced in Italian by Luigi Turco. For all these reasons, and more, it is a delight to see Aaron Garrett's critical edition of Hutcheson's An Essay on the Nature and Conduct ofthe Passions and Affections, with Illustrations on the Moral Sense. While I have differences of opinion concerning some of Garrett's choices, they are relatively minor differences. First, Garrett, following a long-standing