6,879 research outputs found
Affective Norms for German as a Second Language (ANGL2)
No full textSocial Science Development Research Project of Hebei ProvinceNational Social Science Fund of China http://dx.doi.org/10.13039/501100012456China Scholarship Council http://dx.doi.org/10.13039/501100004543Double First Class Project of Beijing Foreign Studies Universit
Using performance assessment in secondary school mathematics: an empirical study in a Singapore classroom
No full textThis article reports an exploratory study on using performance assessment in mathematics instruction in a high-performing secondary school in Singapore. An intact mathematics class participated in the study, and received chapter-based performance tasks as intervention during regular mathematics lessons for about one and a half school years. The performance tasks used included authentic and/or open-ended tasks. The students’ academic achievements and attitudes in mathematics were compared with a comparison class that did not receive the intervention. Both quantitative and qualitative data were collected, mainly through questionnaire surveys, performance task tests, conventional school exams, and interviews with students and teachers. The results suggest that the students receiving the intervention performed significantly better than their counterparts in solving conventional exam problems, and in general they also showed more positive changes in attitudes towards mathematics and mathematics learning. The students from the experimental class also expressed positive views about the benefits of using performance tasks in promoting their ability in higher order thinking, though no statistically significant difference was detected between the two classes of students in solving unconventional tasks before and after intervention. Overall, the results appear to support teachers’ using contextualised problems in real life situations and open-ended investigations in students’ learning of mathematic
Affective and Psycholinguistic Norms for 1200 Two‐character Chinese Words
No full textABSTRACT The interplay between emotion and language has drawn increasing attention from researchers in various fields, such as psycholinguistics, neurolinguistics, and artificial intelligence. The classification of emotional words is crucial to experimental studies, as it serves as a fundamental step for unveiling the complex relationship between emotion and language. Hence, the current study introduces affective and psycholinguistic norms for 1200 two‐character Chinese words. The affective variables, including emotional prototypicality (EmoPro), valence, and arousal, as well as psycholinguistic variables (abstractness and familiarity), were rated by native speakers of Chinese using a 7‐point Likert scale. This set of norms, as far as we know, is the first one that provides words’ EmoPro together with other affective and psycholinguistic variables rated by the same group of participants. The results of inter‐rater reliability and correlation tests showed that this set of norms had good reliability and validity. The correlation between EmoPro and arousal was significant and strong. Valence and arousal exhibited an asymmetric U‐shaped relationship, with negative words being rated higher in arousal than positive ones. We also identified a quadratic relationship between EmoPro and valence, indicating that more prototypical emotion‐label words tend to trigger more extreme valence ratings. EmoPro significantly and positively correlated with abstractness, indicating that prototypical emotion‐label words tend to be more abstract. In addition, familiarity and word frequency predict lexical decision performance, whereas EmoPro does not after controlling for other variables. The present set of Chinese norms supports material selection in experimental research, enables cross‐linguistic comparisons, and has potential applications in natural language processing.摘要 情绪与语言的相互作用日益受到心理语言学、神经语言学及人工智能等多个领域研究者的关注。作为揭示情绪与语言复杂关系的基础, 情绪词分类对实验研究具有重要意义。因此, 本研究建立了包含1200 个汉语双字词的情绪及心理语言学词库。汉语母语者采用7 级李克特量表对情绪变量 (情绪典型性、效价和唤醒度) 和心理语言学变量 (抽象性和熟悉度) 进行评定。据我们所知, 这是首个由同批被试同时评定词汇情绪典型性及其他情绪与心理语言学变量的词库。评分者间信度及相关性检验结果表明, 该词库具有良好的信度和效度。情绪典型性与唤醒度之间存在显著的强相关性;效价与唤醒度呈现非对称U 型关系, 消极词的唤醒度显著高于积极词。此外, 情绪典型性与效价呈现二次函数关系, 表明更具典型性的情绪标签词往往引发更极端的效价评分。情绪典型性与抽象性显著正相关, 表明典型性高的情绪标签词通常更抽象。在控制其他变量后, 熟悉度和词频能有效预测词汇判断反应时, 而情绪典型性预测作用不显著。本汉语词库可为实验研究中的材料筛选提供支持, 促进跨语言比较, 并在自然语言处理中具有潜在应用价值。ABSTRACT The interplay between emotion and language has drawn increasing attention from researchers in various fields, such as psycholinguistics, neurolinguistics, and artificial intelligence. The classification of emotional words is crucial to experimental studies, as it serves as a fundamental step for unveiling the complex relationship between emotion and language. Hence, the current study introduces affective and psycholinguistic norms for 1200 two‐character Chinese words. The affective variables, including emotional prototypicality (EmoPro), valence, and arousal, as well as psycholinguistic variables (abstractness and familiarity), were rated by native speakers of Chinese using a 7‐point Likert scale. This set of norms, as far as we know, is the first one that provides words’ EmoPro together with other affective and psycholinguistic variables rated by the same group of participants. The results of inter‐rater reliability and correlation tests showed that this set of norms had good reliability and validity. The correlation between EmoPro and arousal was significant and strong. Valence and arousal exhibited an asymmetric U‐shaped relationship, with negative words being rated higher in arousal than positive ones. We also identified a quadratic relationship between EmoPro and valence, indicating that more prototypical emotion‐label words tend to trigger more extreme valence ratings. EmoPro significantly and positively correlated with abstractness, indicating that prototypical emotion‐label words tend to be more abstract. In addition, familiarity and word frequency predict lexical decision performance, whereas EmoPro does not after controlling for other variables. The present set of Chinese norms supports material selection in experimental research, enables cross‐linguistic comparisons, and has potential applications in natural language processing.摘要 情绪与语言的相互作用日益受到心理语言学、神经语言学及人工智能等多个领域研究者的关注。作为揭示情绪与语言复杂关系的基础, 情绪词分类对实验研究具有重要意义。因此, 本研究建立了包含1200 个汉语双字词的情绪及心理语言学词库。汉语母语者采用7 级李克特量表对情绪变量 (情绪典型性、效价和唤醒度) 和心理语言学变量 (抽象性和熟悉度) 进行评定。据我们所知, 这是首个由同批被试同时评定词汇情绪典型性及其他情绪与心理语言学变量的词库。评分者间信度及相关性检验结果表明, 该词库具有良好的信度和效度。情绪典型性与唤醒度之间存在显著的强相关性;效价与唤醒度呈现非对称U 型关系, 消极词的唤醒度显著高于积极词。此外, 情绪典型性与效价呈现二次函数关系, 表明更具典型性的情绪标签词往往引发更极端的效价评分。情绪典型性与抽象性显著正相关, 表明典型性高的情绪标签词通常更抽象。在控制其他变量后, 熟悉度和词频能有效预测词汇判断反应时, 而情绪典型性预测作用不显著。本汉语词库可为实验研究中的材料筛选提供支持, 促进跨语言比较, 并在自然语言处理中具有潜在应用价值
Richardson, Barbauld, and the construction of an early modern fan club
No full textMPhilMuch has been written about the life and long works of the eighteenth century epistolary novelist, Samuel Richardson, but the prospect of his position as the first celebrity novelist – responsible for courting his own fame as well as initiating his own fan club – has largely been ignored. The body of manuscripts housed at the National Art Library in the Victoria and Albert Museum in London provides the modern scholar with evidence of the skeletal beginnings of an early fan club. This thesis aims to show how these manuscripts were turned into a saleable commodity by the publisher and entrepreneur Richard Phillips, while under the guiding hand of another, slightly later, literary celebrity, Anna Laetitia Barbauld. In order to restore Richardson’s reputation amongst a new nineteenth century audience, Barbauld was required to construct her own idea of him as an eighteenth century celebrity author, and in doing so the insecurities of a self-professed, apparently diffident man, are revealed. Barbauld’s capacious, but heavily edited selection of letters is analyzed in this thesis, providing ample evidence that Richardson’s correspondents were more than just eager letter writers. By using Barbauld’s biography of Richardson this thesis aims to show how she manipulates the genre of life writing in her construction of him.
This thesis offers an alternative reading of how the Richardson manuscripts are viewed, redefining them as not simply a collection of letters, but as a collective entity, deliberately selected and archived as evidence of an early modern fan club, and its celebrity managing director
Development of a rotor model for the numerical simulation of helicopter exterior flow-fields
No full textIncludes bibliographical references (leaves 84-85).A numerical methodology is developed to model the effect of a rotor on the surrounding flow-field. The model calculates the time-averaged aerodynamic forces exerted on the air by the fan blades within the blade-swept region, and permits the user to specify blade properties such as cross-sectional profile and orientation at a particular radial and azimuthal location. The calculated forces are included as source terms within the Reynolds-averaged Navier-Stokes equations for an incompressible fluid, which are solved by the commercial CFD solver, FLUENT. The effects of turbulence are incorporated through the use of Launder and Spalding's k-g turbulence model. This method is selected as being the most efficient use of the resources available, giving the economic advantages of a steady simulation, while allowing radial and azimuthal variations of rotor characteristics. In order to validate the accuracy of the numerical model for both aligned and non-aligned inflow conditions, results are compared with experimental data reported for an axial flow fan. Agreement between experimental and numerical results is excellent to good. Fan static pressure rise is closely predicted by the numerical solution, while fan power consumption and fan static efficiency are under and over-predicted respectively. This error may be attributed to frictional losses not accounted for in the numerical model. These include physical rotational instabilities, leading to increased mechanical losses, and tip effects due to the clearance between the fan blade tips and the fan casing. Trends are nevertheless consistently predicted by the numerical model for inflow angles up to 45°, and for the range of blade pitch settings used. The adverse effect of off-axis inflow on the fan static pressure rise is numerically predicted, while fan power consumption is found to remain independent of inflow angle, as had been experimentally observed. The rotor model is finally integrated with the fuselage of the CIRSTEL (Combined Infra-Red Suppression and Tail rotor Elimination) prototype in an analysis of the helicopter exterior flow-field. No experimental data for this configuration was available for validation purposes. However, the model is used in the simulation of several common helicopter flight conditions. Results are presented graphically, and generally indicate good agreement with physically observed phenomena
Mechanism Study of Photocatalytic Degradation of Gaseous Toluene on TiO2 with Weak-Bond Adsorption Analysis Using In Situ Far Infrared Spectroscopy
No full textThe development of far infrared spectroscopy offers a powerful method for comprehensive study in adsorption structure and photocatalytic degradation mechanism of photocatalysis. This study presented an improved in situ diffuse reflectance infrared Fourier transform spectroscopy technique in far infrared region for investigation of weak-bond adsorption and photocatalytic degradation of gaseous toluene on the surface of TiO2. It was found that toluene tends to be adsorbed on the hydroxyl group via three possible sites, the ortho-, meta-, and para-adsorption site, instead of ipso-structure. The methyl group of toluene is consumed first during the process of toluene photocatalytic degradation. Based on these, a reaction route for the photocatalytic degradation of gaseous toluene on TiO2 surface was proposed
Fan Fiction and Copyright: Outsider Works and Intellectual Property Protection
No full textAs long as there have been fans, there has been fan fiction. There seems to be a fundamental human need to tell additional stories about the characters after the book, series, play or movie is over. But developments in information technology and copyright law have put these fan stories at risk of collision with the content owners’ intellectual property rights. Fan fiction has long been a nearly invisible form of outsider art, but over the past decade it has grown exponentially in volume and in legal importance. Because of its nature, authorship, and underground status, fan fiction stands at an intersection of key issues regarding property, sexuality, and gender. In Fan Fiction and Copyright, author Aaron Schwabach examines various types of fan-created content and asks whether and to what extent they are protected from liability for copyright infringement. Professor Schwabach discusses examples of original and fan works from a wide range of media, genres, and cultures. From Sherlock Holmes to Harry Potter, fictional characters, their authors, and their fans are sympathetically yet realistically assessed. Fan Fiction and Copyright looks closely at examples of three categories of disputes between authors and their fans: Disputes over the fans’ use of copyrighted characters, disputes over online publication of fiction resembling copyright work, and in the case of J.K. Rowling and a fansite webmaster, a dispute over the compiling of a reference work detailing an author's fictional universe. Offering more thorough coverage of many such controversies than has ever been available elsewhere, and discussing fan works from the United States, Brazil, China, India, Russia, and elsewhere, Fan Fiction and Copyright advances the understanding of fan fiction as transformative use and points the way toward a safe harbor\u9d for fan fiction
Learning of algorithms: a theoretical model with focus on cognitive development
No full textTaking a broad perspective on algorithm in mathematics, the author presents a theoretical model about the learning and teaching of algorithm with focus on students’ cognitive development. The model consists of three cognitive levels: 1. Knowledge and Skills, 2. Understanding and Comprehension, and 3. Evaluation and Construction. The model suggests that teaching and learning of algorithm does not simply mean routine learning, memorization, or lead to a low level of cognition. The paper also discusses different teaching strategies and activities that can be used to support students’ cognitive development at different cognitive levels
DRIFTS Evidence for Facet-Dependent Adsorption of Gaseous Toluene on TiO2 with Relative Photocatalytic Properties
No full textEffective adsorption is of great importance to the photocatalytic degradation of volatile organic compounds. Herein, we succeeded in the preparation of anatase TiO2 with clean dominant {001} and {101} facets. By using in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) equipped with a homemade reaction system and a coupling gas-dosing system, we found that TiO2 with dominant {001} facets exhibits higher toluene adsorption capacity than TiO2 with dominant {101} facets, which may be attributed to the different number of unsaturated 5c-Ti capable of forming the main active adsorption sites (terminal Ti-OH species). TiO2 with dominant {001} facets shows a significantly high photocatalytic degradation performance, with its degradation rate being 6 times higher than that of dominant {101} facets. Combined with simulation results, it is suggested that the synergetic effects of the formation of specific active adsorption sites, the low adsorption energy for toluene, and preservation of the free molecularly adsorbed water on the surface promote the degradation of gaseous toluene on the dominant {001} facets. This study exemplifies that the facet-dependent adsorption of volatile organic compounds is one of the most important factors to effectively engineer photocatalysts for air purification
The author in the postinternet age: Fan works, authorial function, and the archive
No full textFifty years since Roland Barthes proclaimed the death of the author, there still exists difficulty in framing the nature of interaction between commercial (professional) creators and fan (transformative) authors. In the postinternet age, the visibility of unsanctioned (or tacitly sanctioned) derivative fictional works has only increased, as have the number of commercial creators with experience in creating derivative works for a fan audience. It has therefore become necessary to interrogate whether the author has truly died in the Barthian sense, and if not, what role the construct of the author plays in today's popular mediascape. In an analysis of the Foucauldian author function (that is, the role discursively constructed authors play relative to their work) assessing both Euro-American and Japanese histories of fan practice, a move to a more open-source style of fan practice is evident. The author in an open-source fandom functions as a heuristic device through which fans may access and search the database, as well as a means of decentralizing commercial authority over media content
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