451 research outputs found

    JOAO WANDERLEY GERALDI: THE LINGUIST RESEARCHER, TRAINING TEACHER AND UNIQUE BRAZILIAN READER OF BAKHTIN AND HIS STUDY CIRCLE

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    This article aims to honor and discuss our meeting with Joao Wanderley Geraldi, the linguist researcher, teacher trainer and unique reader of Bakhtin and his Study circle. Our subject matter in this paper is the meetings we held with the author in his research and teaching activities throughout his years of activism, and in specially during the Linguistics V program taken at Unicamp in 2005. From mediations with Geraldi on language studies, we chose to share our understanding of speech genres - involving life and education - that converge around this construction. Finally, we show how this knowledge guides us to maintain the inseparable relationship between language and literature in dialogue through a poem by Manoel de Barros, a poet who was also introduced to us by Geraldi.Univ Fed Santa Catarina UFSC, Programa Posgrad Linguist PPGL UFSC, Florianopolis, BrazilUniv Fed Santa Catarina, GEBAP Grp Estudos Bakhtinianos Pampa, Nucleo Estudos & Pesquisas Alfabetizacao & Ensino, Florianopolis, BrazilUniv Fed Santa Catarina, NEPALP, Nucleo Estudos & Pesquisas Alfabetizacao & Ensino, Florianopolis, BrazilNELA UFSC, Nucleo Estudos Linguist Aplicada, Florianopolis, BrazilGrp UNESP, Grp Estudos Alfabetizacao Brasil, Sao Paulo, BrazilUNIPAMPA Univ Fed Pampa, Curso Letras Linguas Adicionais, Campus Bage, RS, BrazilGEBAP Grp Estudos Bakhtinianos Pampa, Bage, BrazilGrp UNESP, Grp Estudos Alfabetizacao Brasil, Sao Paulo, Brazi

    Comparison of KOOS scores of middle-aged patients undergoing total knee arthroplasty to the general Dutch population using KOOS percentile curves: the LOAS study

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    Background: We aimed to investigate the application of the Knee Injury and Osteoarthritis Outcome Score (KOOS) percentile curves, using preoperative and postoperative data of patients with knee osteoarthritis undergoing total knee arthroplasty (TKA).Methods: We used Longitudinal Leiden Orthopedics Outcomes of Osteo-Arthritis study data of patients between 45 and 65 years and undergoing primary TKA. KOOS scores (0-100) were obtained preoperatively and 6, 12, and 24 months after TKA. Preoperative knee radiographs were assessed according to Kellgren-Lawrence (KL) in a subset (37%) of patients. Comorbidities were self-reported using a standardized questionnaire. The median (interquartile range) population-level KOOS scores were plotted on previously developed population-based KOOS percentile curves. In addition, we assessed the application of the curves on patient level and investigated differences in scores between patients with preoperative KL scores = 3 and presence (vs absence) of comorbidities.Results: The study population consisted of 853 patients (62% women, mean age 59 years, body mass index 30 kg/m(2)) with knee osteoarthritis undergoing primary TKA. Preoperatively, median KOOS scores of all subscales were at or below the 2.5th percentile. Scores increased to approximately the 25th percentile 12 months postoperatively. Greater improvements were observed in pain and less improvements in sport and recreational function and quality of life. Patients with higher preoperative KL scores and without comorbidities showed greater improvements.Conclusion: The KOOS percentile curves provided visual insights in knee complaints of patients relative to the general population. Furthermore, the KOOS percentile curves give insight in how preoperative patient characteristics are correlated with postoperative results. (C) 2021 The Author(s). Published by Elsevier Inc.Clinical epidemiolog

    A high proportion of patients have unfulfilled sexual expectations after TKA:A prospective study

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    Background Most patients have high expectations about restoration of the knee function after TKA, expecting a more active life after retirement. However, 20% to 30% of patients report that their expectations are not met postoperatively. Among those unmet expectations may be the anticipation to engage in sexual activity after surgery, but few studies have evaluated sexual activity after arthroplasty.Questions/purposesIn this study, our purposes were (1) to evaluate the anticipation and the fulfillment of sexual activity after TKA in men and women, and (2) to identify prognostic factors for the fulfillment of anticipated postoperative sexual activity.Methods This was a prospective, multicenter study of all 1371 patients scheduled for TKA between June 2012 and July 2015. The study was part of the Longitudinal Leiden Orthopaedics Outcomes of Osteoarthritis Study (LOAS). After screening according to LOAS inclusion criteria, 1213 respondents remained. Our primary study endpoint was whether sexual expectations were met 1 year after TKA; we used the sexual-activity-expectation question from the Hospital for Special Surgery (HSS) Knee Replacement Expectations Survey, which allows the patient to score the result on a 5-point scale. To assess postoperative fulfillment of sexual activity 1 year after TKA, we asked the patient to score the current status of sexual activity on the same 5-point scale: 1 (back to normal), 2 (large improvement), 3 (moderate improvement), 4 (slight improvement), and 5 (does not apply). Patients with incomplete data on the preoperative expectation- and postoperative fulfillment-question of sexual activity were excluded, leaving 71% (866 of 1213) patients for analysis. The difference between the pre- and postoperative scores determined whether expectations of sexual activity were unfulfilled (lower than expected) or fulfilled/exceeded (neutral or higher than expected). Pre- and postoperatively, the Knee Injury and Osteoarthritis Outcome Score (KOOS), the Short Form-12 Mental and Physical Component Summary scores (SF-12 MCS and SF-12 PCS), the EuroQoL-5 Dimensions (EQ-5D), and the EQ-5D VAS scale were used. Multivariate regression models were used for analysis.Results Preoperatively, 54% patients (467 of 866) anticipated postoperative sexual activity after recovery from surgery. Both genders showed that the proportion who anticipated "back to normal" sexual activity decreased with higher age. Likewise, postoperative fulfillment of anticipated sexual activity was found in 58% (111 of 191 for men; 159 of 276 for women). Younger women (younger than 65 years of age) experienced fulfillment more often compared with younger men. A positive postoperative change in functional and health status was associated with fulfilled/exceeded scores of patients anticipating postoperative sexual activity. A better preoperative health status, the EQ-5D VAS score (odds ratio [OR] 1.02 [95% CI 1.01 to 1.03]; p = 0.006), was associated with a higher likelihood of fulfillment of anticipated postoperative sexual activity.Conclusion In both men and women, two of five patients who anticipated postoperative sexual activity indicated that their expectation of sexual activity was not met 1 year after TKA. These patients had worse functional recovery scores compared with patients who achieved the anticipated level of sexual activity. The latter is associated with functional recovery. Surgeons should be aware that many patients anticipate restoration of normal sexual activity, and that this may be the expectation for patients of all ages and for women and men alike. The results underscore the need for more qualitative research to understand this topic in greater depth

    Long-term safety and efficacy of subcutaneous immunoglobulin IgPro20 in CIDP PATH extension study

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    Objective To investigate the long-term safety and efficacy of weekly subcutaneous IgPro20 (Hizentra, CSL Behring) in chronic inflammatory demyelinating polyneuropathy (CIDP). Methods In a 48-week open-label prospective extension study to the PATH study, patients were initially started on 0.2 g/kg or on 0.4 g/kg weekly and-if clinically stable-switched to 0.2 g/kg weekly after 24 weeks. Upon CIDP relapse on the 0.2 g/kg dose, 0.4 g/kg was (re)initiated. CIDP relapse was defined as a deterioration by at least 1 point in the total adjusted Inflammatory Neuropathy Cause and Treatment score. Results Eighty-two patients were enrolled. Sixty-two patients initially received 0.4 g/kg, 20 patients 0.2 g/kg weekly. Seventy-two received both doses during the study. Sixty-six patients (81%) completed the 48-week study duration. Overall relapse rates were 10% in 0.4 g/kg-treated patients and 48% in 0.2 g/kg-treated patients. After dose reduction from 0.4 to 0.2 g/kg, 51% (27/53) of patients relapsed, of whom 92% (24 of 26) improved after reinitiation of the 0.4 g/kg dose. Two-thirds of patients (19/28) who completed the PATH study without relapse remained relapse-free on the 0.2 g/kg dose after dose reduction in the extension study. Sixty-two patients had adverse events (AEs) (76%), of which most were mild or moderate with no related serious AEs. Conclusions Subcutaneous treatment with IgPro20 provided long-term benefit at both 0.4 and 0.2 g/kg weekly doses with lower relapse rates on the higher dose. Long-term dosing should be individualized to find the most appropriate dose in a given patient. Classification of evidence This study provides Class IV evidence that for patients with CIDP, long-term treatment with SCIG beyond 24 weeks is safe and efficacious.Peer reviewe

    Accuracy of the Adaptive GRP Scheme and the Simulation of 2-D Riemann Problems for Compressible Euler Equations

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    The adaptive generalized Riemann problem (GRP) scheme for 2-D compressible fluid flows has been proposed in [J. Comput. Phys., 229 (2010), 1448-1466] and it displays the capability in overcoming difficulties such as the start-up error for a single shock, and the numerical instability of the almost stationary shock. In this paper, we will provide the accuracy study and particularly show the performance in simulating 2-D complex wave configurations formulated with the 2-D Riemann problems for compressible Euler equations. For this purpose, we will first review the GRP scheme briefly when combined with the adaptive moving mesh technique and consider the accuracy of the adaptive GRP scheme via the comparison with the explicit formulae of analytic solutions of planar rarefaction waves, planar shock waves, the collapse problem of a wedge-shaped dam and the spiral formation problem. Then we simulate the full set of wave configurations in the 2-D four-wave Riemann problems for compressible Euler equations [SIAM J. Math. Anal., 21 (1990), 593-630], including the interactions of strong shocks (shock reflections), vortex-vortex and shock-vortex etc. This study combines the theoretical results with the numerical simulations, and thus demonstrates what Ami Harten observed "for computational scientists there are two kinds of truth: the truth that you prove, and the truth you see when you compute" [J. Sci. Comput., 31 (2007), 185-193].http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000298763800002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Physics, MathematicalSCI(E)16ARTICLE3577-6061

    Investigating the effects of recency and size of training text on author recognition problem

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    19th International Symposium on Computer and Information Sciences (ISCIS 2004) -- OCT 27-29, 2004 -- Kemer Antalya, TURKEYPrediction by partial match (PPM) is an effective tool to address the author recognition problem. In this study, we have successfully applied the trained PPM technique for author recognition on Turkish texts. Furthermore, we have investigated the effects of recency, as well as size of the training text on the performance of the PPM approach. Results show that, more recent and larger training texts help decrease the compression rate, which, in turn, leads to increased success in author recognition. Comparing the effects of the recency and the size of the training text, we see that the size factor plays a more dominant role on the performance.Bilkent Univ, Dept Comp Engn, Inst Elect & Elect Engineers Turkey Sect, Working Grp, Int Federat Informat Proc, Sci & Tech Res Council Turke

    [[alternative]]The Study on the Metacognition Performance of Junior High school Students in the Learning of Biology Through Integrated Technology

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    [[abstract]]The aim of this research is for understanding the metacognition performance of junior high school students in the learning of biology through integrated technology, and comparing the metacognition performance of the student before and after the learning activities. The study is based on the action research, the teacher as the researcher. The research instruments including protofolios, classroom observation, semi-structured interview , questionnaires and other related methods. Through the study methods of qualitative and quantitative , the results comes to appear the attitude of the students on learning with computer and by peer collaboration to obtain the resources through internet is positive. Among the research activities, the students perform diverse strategies metacognition including planning, monitoring, and assessment. Differences shows between the experimental grp. and the control grp., the former performed more diverse metacognition strategies than the latter. And the study indicated the sexual differentiation among the learning activities, while the students proceeding group study and peer collaboration through the internet, the cooperative attitude and the executive effect of the monitoring strategy of the girls are better than the boys. According to the results and findings of this study, suggestions for teaching design of 9-integrated science and technology curriculum in junior high school were given. Besides, suggestions for constructing the scientific learning websites and the design of interaction software were given too, those are aimed to promote the study effect for the students in the learning environment through integrated with information technology.
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