12 research outputs found

    PRE-SERVICE TEACHERS' PERCEPTION OF THE USE OF GEOGEBRA IN TEACHING AND LEARNING GEOMETRY IN THE COLLEGES OF EDUCATION, GHANA

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    The introduction of technology has given opportunities and made it easy for educators to utilize it in various ways, including in the field of education, as an instrument to support the teaching and learning of mathematics. GeoGebra is one of the mathematical software programs that can be effectively used in delivering mathematics lessons. GeoGebra is computer software that supports the teaching and learning of mathematics subjects, especially algebra, calculus, geometry, probability, and statistics. The objectives of this systematic analysis were to investigate pre-service teachers' perceptions and benefits of using GeoGebra to teach geometry. This study used a quantitative research design to review published articles from 2011 to 2021 related to the research objectives. This investigation purposefully sampled 17 published articles out of the over 200 articles found. The study used Google scholar, Google, and Sci Direct as the search engines to gather data using the keywords. The selected articles were validated using content analysis. This investigation selected the 17 articles for data analysis based on the research design, location, area of research, research focus and the type of technology applied. The findings of this study disclosed that pre-service teachers had the following perceptions regarding learning geometry with GeoGebra: GeoGebra enhances the teaching and learning of geometry, it helps learners to have positive perceptions concerning GeoGebra integration, GeoGebra improves learners' interest, motivation, and willingness to learn geometry. Also, it motivates learners to interact among themselves. Nevertheless, some benefits were identified as follows: GeoGebra increases students’ academic performance, develops learners' confidence in learning geometry, makes the learning of mathematics enjoyable, and helps learners to conceptualize abstract concepts in mathematics. Based on the findings of this study, it is concluded that GeoGebra is effective for teaching and learning geometry. This study recommends that mathematics educators should embrace GeoGebra software in the teaching and learning of geometry at the college level of education. Additionally, the Ministry of Education should enforce the integration of GeoGebra in the delivery of mathematics lessons

    Le triomphe de la scÚne intermédiale

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    À Paris, entre la fin du XIXe siĂšcle et le dĂ©but des annĂ©es 1930, le cinĂ©ma, le disque et la radio triomphent. Dans ce monde du divertissement de plus en plus dominĂ© par l’artifice, le mĂ©diatisĂ© et le « reproduit », le thĂ©Ăątre s’affirme comme l’une des ultimes enclaves de vĂ©ritĂ©, Ă  cause, notamment, de la prĂ©sence de « vrais » acteurs rencontrant un « vrai » public. Pourtant, ses artisans n’en recourent pas moins aux mĂȘmes technologies de reproduction de l’image et du son que celles qui font le succĂšs des grands mĂ©dias. Par l’examen attentif de documents d’archives et de « relevĂ©s de mises en scĂšne » de dizaines de spectacles, les auteurs de ce livre rĂ©vĂšlent une histoire du thĂ©Ăątre de la modernitĂ© aux antipodes de celle vantĂ©e par le discours qui a traversĂ© tout le XXe siĂšcle et qui reste encore trĂšs prĂ©gnante Ă  l’ùre numĂ©rique. L’image qu’ils dĂ©gagent est celle d’un art qui n’hĂ©site pas Ă  intĂ©grer tous les moyens susceptibles d’accroĂźtre l’efficacitĂ© et l’attractivitĂ© de la reprĂ©sentation. En examinant Ă©galement les dynamiques intermĂ©diales - entre thĂ©Ăątre, cinĂ©ma et littĂ©rature - qui s’instaurent avec le dĂ©veloppement rapide des technologies Ă©lectriques, les auteurs montrent bien comment le thĂ©Ăątre de la modernitĂ© perpĂ©tue une tradition plus de deux fois millĂ©naire

    Feasibility and performance of the fecal immunochemical test (FIT) for average-risk colorectal cancer screening in Nigeria.

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    IntroductionThere is a paucity of prospective data on the performance of the fecal immunochemical test (FIT) for colorectal cancer (CRC) screening in sub-Saharan Africa. The aim of this exploratory analysis was to evaluate the feasibility and performance of FIT in Nigeria.MethodsThis was a prospective, single-arm study. A convenience sample of asymptomatic, average-risk individuals between 40-75 years of age were enrolled at Obafemi Awolowo University Teaching Hospital. Study participants returned in 48 hours with a specimen for ova and parasite (O&P) and qualitative FIT (50ug/g) testing. Participants with a positive FIT had follow-up colonoscopy and those with intestinal parasites were provided treatment.ResultsBetween May-June 2019, 379 individuals enrolled with a median age of 51 years (IQR 46-58). In total, 87.6% (n = 332) returned for FIT testing. FIT positivity was 20.5% (95% CI = 16.3%-25.2%). Sixty-one (89.7%) of participants with a positive FIT had a follow-up colonoscopy (n = 61), of whom 9.8% (95%CI:3.7-20.2%) had an adenoma and 4.9% (95%CI:1.0-13.7%) had advanced adenomas. Presence of intestinal parasites was inversely related to FIT positivity (6.5% with vs. 21.1% without parasites, p = 0.05). Eighty-two percent of participants found the FIT easy to use and 100% would recommend the test to eligible family or friends if available.ConclusionsAsymptomatic, FIT-based CRC screening was feasible and well tolerated in this exploratory analysis. However, the high FIT positivity and low positive predictive value for advanced neoplasia raises concerns about its practicality and cost effectiveness in a low-resource setting such as Nigeria

    Les archives de la mise en scĂšne

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    Longtemps mĂ©prisĂ©s, les spectacles populaires sont abordĂ©s ici sous l'angle d’une culture mĂ©diatique dont on suit l’essor Ă  travers diffĂ©rentes formes de spectacles visuels et sonores, thĂ©Ăątre, cinĂ©ma, music-hall ou cafĂ©-concert. Ce volume, Spectacles populaires et culture mĂ©diatique, s’inscrit dans la continuitĂ© du prĂ©cĂ©dent ouvrage publiĂ© dans la mĂȘme collection, HypermĂ©dialitĂ©s du thĂ©Ăątre. Les dix-neuf contributions que renferme le prĂ©sent volume poursuivent l’analyse des archives du fonds de l’Association de la RĂ©gie ThĂ©Ăątrale (ART), dĂ©posĂ© Ă  la BibliothĂšque Historique de la Ville de Paris. Peu Ă©tudiĂ©e jusqu’ici, cette riche collection rassemble les documents – prĂšs de 6 500 pour la pĂ©riode choisie – dĂ©posĂ©s par les rĂ©gisseurs, metteurs en scĂšne et directeurs de thĂ©Ăątre de la rĂ©gion parisienne : relevĂ©s de mise en scĂšne, photographies, partitions, articles de presse
 Une grande partie de ce fonds concerne des Ɠuvres traditionnellement rangĂ©es dans la catĂ©gorie des spectacles populaires.Long despised by the critics, popular shows are studied in this book as a media culture evolving through different forms of aural and visual representations, theatre, cinema, music-hall and others, often with a hypermediatic dimension

    Les archives de la mise en scÚne. Hypermédialités du théùtre

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    Une Ă©quipe internationale constituĂ©e de 21 chercheurs en thĂ©Ăątre, cinĂ©ma, divertissements populaires, littĂ©rature, mĂ©dias et musique prĂ©sente dans cet ouvrage les rĂ©sultats de l'analyse du fonds d'archives de la ART (Association de la RĂ©gie ThĂ©Ăątrale). Cette vaste collection de plus de 6 500 documents porte sur 2 000 spectacles crĂ©Ă©s Ă  Paris et repris en tournĂ©e – y compris en Afrique, en Europe et au Canada – entre 1850 et 1950. CrĂ©Ă©e par les praticiens de thĂ©Ăątre au fil des productions, ces documents d'une richesse exceptionnelle permettent aux chercheurs de pĂ©nĂ©trer au cƓur mĂȘme de la fabrique du spectacle au moment oĂč apparaĂźt et s'impose la figure du metteur en scĂšne. Par une approche transversale attentive aux traces et indices et dans un va et vient continu entre observation et conceptualisation, ils en dĂ©gagent le tableau d'une pratique thĂ©Ăątrale dynamique et variĂ©e qui n'hĂ©site pas Ă  intĂ©grer les technologies reproductives Ă  son arsenal crĂ©atif. Le thĂ©Ăątre de cette Ă©poque apparaĂźt ainsi bien plus technologisĂ© que l'image que nous en avons. OrganisĂ© en quatres axes – « EsthĂ©tique et technologie du son », « EsthĂ©tiques du visuel », « Mise en scĂšne » et « Dynamiques intermĂ©diales », l'examen des documents rend compte de la prĂ©sence sur scĂšne de la peinture, de la scĂ©nographie, de la technologie sonore, de la musique, du chant, de la photographie, de la magie et du cinĂ©ma. C'est cette dynamique fĂ©dĂ©ratrice singuliĂšre du thĂ©Ăątre, considĂ©rĂ© ici comme un hypermĂ©dia, qui est l'objet du prĂ©sent ouvrage collectif, d'oĂč son titre : Archives de la mise en scĂšne. HypermĂ©dialitĂ©s du thĂ©Ăątre

    Bio-inspired encapsulation and functionalization of iron oxide nanoparticles for biomedical applications

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    Evaluation of a quality improvement intervention to reduce anastomotic leak following right colectomy (EAGLE): pragmatic, batched stepped-wedge, cluster-randomized trial in 64 countries

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    Background Anastomotic leak affects 8 per cent of patients after right colectomy with a 10-fold increased risk of postoperative death. The EAGLE study aimed to develop and test whether an international, standardized quality improvement intervention could reduce anastomotic leaks. Methods The internationally intended protocol, iteratively co-developed by a multistage Delphi process, comprised an online educational module introducing risk stratification, an intraoperative checklist, and harmonized surgical techniques. Clusters (hospital teams) were randomized to one of three arms with varied sequences of intervention/data collection by a derived stepped-wedge batch design (at least 18 hospital teams per batch). Patients were blinded to the study allocation. Low- and middle-income country enrolment was encouraged. The primary outcome (assessed by intention to treat) was anastomotic leak rate, and subgroup analyses by module completion (at least 80 per cent of surgeons, high engagement; less than 50 per cent, low engagement) were preplanned. Results A total 355 hospital teams registered, with 332 from 64 countries (39.2 per cent low and middle income) included in the final analysis. The online modules were completed by half of the surgeons (2143 of 4411). The primary analysis included 3039 of the 3268 patients recruited (206 patients had no anastomosis and 23 were lost to follow-up), with anastomotic leaks arising before and after the intervention in 10.1 and 9.6 per cent respectively (adjusted OR 0.87, 95 per cent c.i. 0.59 to 1.30; P = 0.498). The proportion of surgeons completing the educational modules was an influence: the leak rate decreased from 12.2 per cent (61 of 500) before intervention to 5.1 per cent (24 of 473) after intervention in high-engagement centres (adjusted OR 0.36, 0.20 to 0.64; P < 0.001), but this was not observed in low-engagement hospitals (8.3 per cent (59 of 714) and 13.8 per cent (61 of 443) respectively; adjusted OR 2.09, 1.31 to 3.31). Conclusion Completion of globally available digital training by engaged teams can alter anastomotic leak rates. Registration number: NCT04270721 (http://www.clinicaltrials.gov)
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