20,949 research outputs found
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
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
A scholarly catalogue raisonné: George Wilson and the engraved fan leaf design 1795-1801
No full textABSTRACT
This research thesis offers a small but comprehensive scholarly catalogue raisonné of the surviving unmounted fan leaves designed and printed by the late eighteenth-century English fan leaf engraver, George Wilson (active before 1795-after 1801). Wilson’s extant output of nineteen fan leaf engravings published in London now exist in storage within the Prints and Drawing Department of the British Museum, after the receipt of two bequests from Lady Charlotte Schreiber (1812-1895) in the late nineteenth century. The individual fan leaf designs discussed in this catalogue raisonné include a number of reprinted fan leaves from the same engraving design.
There follows a chronological catalogue listing, and discussion of, all the different fan leaves designed by Wilson, collected by Lady Schreiber and subsequently bequeathed to the British Museum. The variety of subject matter depicted on these fan leaf designs underscore the differing types of themes Wilson engaged with in his engraved production. Analysis of the three main areas of Wilson’s fan leaf design work, female ‘advisory’ fan leaves, overtly satirical, and nationalistic fan leaves, reveal that Wilson’s fan leaf imagery engaged, to a great extent, with cultural concerns about the turbulences of late eighteenth-century life in London, as well as effectively modernising aesthetic precedents and contemporary graphic design. In particular, it becomes apparent that Wilson’s fan leaves effectively engage with late eighteenth-century feminine pre-occupations of choosing the right moral path to happiness, moderation in daily life, marriage and bearing children, in addition to illustrating the perceived multitude of follies translated from contemporary literary and pictorial sources. One of the predominant concerns in his catalogue of work is revealed to be the age old theme of the cycle of birth, reproduction and death, alongside a sustained pictorial focus upon feminine concerns and pre-occupations
Cierpliwość fana fantastyki. O tym, czy fan to marionetka czy partyzant
No full textThe article discusses a specific group of the recipients of the media — fans of science-fiction. The author describes two research approaches to sci-fi fans — a pathological approach and a warlike approach. The pathological one shows fans as infantile puppets. According to the representatives of this approach the science-fiction genre is kitsch. Fans are completely tasteless, dumb and easily yield to manipulation by the producers. The second approach opposes this notion. According to the representatives of the warlike approach, fans are quite impatient when it comes to kitsch. Fans often reject a part of a text producers present. Fans are selective — they choose what they think is good and valuable. One could say that the fans are fighting with producers, that they are a guerillas involved in a war. Fans try to pick something up out of a text and create a new fan culture. The author of the article characterizes both approaches, indicates their main assumptions and recognized representatives. It is possible to accept the thesis that a fan is a warlike guerrilla without any reservations? If a cultural industry is currently changing to accommodate the most engaged and participatory audiences, researchers should come up with a new approach. It could portray sci-fi fans rather as engaged in war with producers (but recapitulate ideas of fannish opposition) or once again manipulated. In the near future it is important to decide which way the new approach should take — researching fans of science fiction genre is crucial to understanding audiences in general
Paramesanophrys Pan & Fan & Gao & Chen 2016, gen. nov.
No full textGenus <i>Paramesanophrys</i> gen. nov. <p>urn:lsid:zoobank.org:act: 29EF1135-5A4C-4E60-8977-DAEB6EF21370</p> Diagnosis <p> Orchitophryidae with cytostome above mid-body; buccal apparatus consisting of three <i>Parauronema</i> - like membranelles; PM with zigzag structure, extending anteriorly to posterior end of M3; M1 composed of two rows of kinetids; scutica comprising basal body pairs arranged in a line parallel to somatic kineties; single caudal cilium.</p> Type species <p> <i>Paramesanophrys typica</i> gen. et sp. nov.</p> Etymology <p> The generic epithet, <i>Paramesanophrys</i>, refers to the similarity of the oral apparatus to that of the genus <i>Mesanophrys</i>.</p>Published as part of <i>Pan, Xuming, Fan, Xinpeng, Gao, Shan & Chen, Ying, 2016, Taxonomy and morphology of four " ophrys-related " scuticociliates (Protista, Ciliophora, Scuticociliatia), with the description of a new genus, Paramesanophrys gen. nov., pp. 1-18 in European Journal of Taxonomy 191</i> on page 4, DOI: 10.5852/ejt.2016.191, <a href="http://zenodo.org/record/3837739">http://zenodo.org/record/3837739</a>
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
Letrasilta Huang & Volynkin & Yin & Zhang & Fan & Pan & Wang 2023, gen. n.
No full textSpecies content of Letrasilta gen. n. — L. ratnasambhava S.-Y. Huang, Volynkin & Yin sp. n. — L. cernyi (Volynkin, 2018), comb. n.Published as part of Huang, Si-Yao, Volynkin, Anton V., Yin, Xiong-Yan, Zhang, Yu-Long, Fan, Xiao-Ling, Pan, Zhao-Hui & Wang, Min, 2023, Letrasilta, a new genus for the Striatella cernyi Volynkin species-group with description of a new species from Xizang, China, and a replacement name for the genus group name Striatella Volynkin & S. - Y. Huang, 2019 (Lepidoptera: Erebidae: Arctiinae: Lithosiini), pp. 251-263 in Zootaxa 5315 (3) on page 258, DOI: 10.11646/zootaxa.5315.3.3, http://zenodo.org/record/813056
PAN-00037112 - fan-shaped strap clamp (book mount)
No full textThis find is registered at Portable Antiquities of the Netherlands with number PAN-0003711
PAN-00014870 - fan-shaped catch plate (book mount)
No full textThis find is registered at Portable Antiquities of the Netherlands with number PAN-0001487
PAN-00100715 - fan-shaped strap clamp (book mount)
No full textThis find is registered at Portable Antiquities of the Netherlands with number PAN-0010071
- …
