74 research outputs found

    Advanced EFL learners' beliefs about language learning and teaching: a comparison between grammar, pronunciation, and vocabulary

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    This paper reports on the results of a study exploring learners’ beliefs on the learning and teaching of English grammar, pronunciation and vocabulary at tertiary level. While the importance of learners’ beliefs on the acquisition process is generally recognized, few studies have focussed on and compared learners’ views on different components of the language system. A questionnaire containing semantic scale and Likert scale items probing learners’ views on grammar, pronunciation and vocabulary was designed and completed by 117 native speakers of Dutch in Flanders, who were studying English at university. The analysis of the responses revealed that (i) vocabulary was considered to be different from grammar and pronunciation, both in the extent to which an incorrect use could lead to communication breakdown and with respect to the learners’ language learning strategies, (ii) learners believed in the feasibility of achieving a native-like proficiency in all three components, and (iii) in-class grammar, pronunciation and vocabulary exercises were considered to be useful, even at tertiary level. The results are discussed in light of pedagogical approaches to language teaching

    Factors Associated with Colposcopy-Histopathology Confirmed Cervical Intraepithelial Neoplasia among HIV-Infected Women from Rio De Janeiro, Brazil

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    Introduction: Despite the availability of preventive strategies (screening tests and vaccines), cervical cancer continues to impose a significant health burden in low- and medium-resourced countries. HIV-infected women are at increased risk for infection with human papillomavirus (HPV) and thus development of cervical squamous intraepithelial neoplasia (CIN). Methods:Study participants included HIV-infected women enrolling the prospective open cohort of Evandro Chagas Clinical Research Institute, Oswaldo Cruz Foundation (IPEC/FIOCRUZ). At cohort entry, women were subjected to conventional Papanicolaou test, HPV-DNA test and colposcopy; lesions suspicious for CIN were biopsied. Histopathology report was based on directed biopsy or on specimens obtained by excision of the transformation zone or cervical conization. Poisson regression modeling was used to assess factors associated with CIN2+diagnosis. Results:The median age of the 366 HIV-infected women included in the study was 34 years (interquartile range: 28–41 years). The prevalence of CIN1, CIN2 and CIN3 were 20.0%, 3.5%, and 2.2%, respectively. One woman was found to have cervical cancer. The prevalence of CIN2+was 6.0%. Factors associated with CIN2+diagnosis in the multivariate model were age,years compared to35years(aPR=3.2295CD4T−cellcount,350cells/mm3whencomparedto35 years (aPR = 3.22 95%CI 1.23–8.39), current tobacco use (aPR = 3.69 95%CI 1.54–8.78), nadir CD4 T-cell count,350 cells/mm3 when compared to350 cells/mm3 (aPR = 6.03 95%CI 1.50–24.3) and concomitant diagnosis of vulvar and/or vaginal intraepithelial lesion (aPR = 2.68 95%CI 0.99–7.24). Discussion:Increased survival through wide-spread use of highly active antiretroviral therapy might allow for the development of cervical cancer. In Brazil, limited cytology screening and gynecological care adds further complexity to the HIV-HPV co-infection problem. Integrated HIV care and cervical cancer prevention programs are needed for the prevention of cervical cancer mortality in this group of wome

    The James Webb Space Telescope Mission

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    Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least 4m4m. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the 6.5m6.5m James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit.Comment: Accepted by PASP for the special issue on The James Webb Space Telescope Overview, 29 pages, 4 figure

    Retrospective evaluation of whole exome and genome mutation calls in 746 cancer samples

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    Funder: NCI U24CA211006Abstract: The Cancer Genome Atlas (TCGA) and International Cancer Genome Consortium (ICGC) curated consensus somatic mutation calls using whole exome sequencing (WES) and whole genome sequencing (WGS), respectively. Here, as part of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium, which aggregated whole genome sequencing data from 2,658 cancers across 38 tumour types, we compare WES and WGS side-by-side from 746 TCGA samples, finding that ~80% of mutations overlap in covered exonic regions. We estimate that low variant allele fraction (VAF < 15%) and clonal heterogeneity contribute up to 68% of private WGS mutations and 71% of private WES mutations. We observe that ~30% of private WGS mutations trace to mutations identified by a single variant caller in WES consensus efforts. WGS captures both ~50% more variation in exonic regions and un-observed mutations in loci with variable GC-content. Together, our analysis highlights technological divergences between two reproducible somatic variant detection efforts

    Dating Skipsea Mound, East Yorkshire

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    In the winter of 2015/16, as part of the Leverhulme Trust funded project ‘Extending Histories: from Medieval Mottes to Prehistoric Round Mounds’, staff from the University of Reading carried out archaeological investigations at Skipsea Castle in the East Riding of Yorkshire. Radiocarbon dates obtained from two soil cores taken through the castle motte indicate that the large earthen mound may have originated in the Middle Iron Age, sometime after 401-233 cal BC (95% confidence), and is therefore possibly 1,500 years older than previously thought. This paper presents the results of that work and includes a short discussion on the implications of the new dating evidence

    Children's experiences and conceptualisations of child-adult relations within, and beyond, their families

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    This study explored children’s experiences and perceptions of adults and child-adult relations and relationships. Child-adult relations involve the conceptualisation of adults and children as distinct social groups and child-adult relationships are inter-personal relationships between individuals that cross the boundary between these groups. The focus of this study was children’s contacts and relationships with adults and how these relationships informed children’s constructions of child-adult relations. The study took place in the context of concern about distance between child and adult worlds generating negative stereotypes and distrust between the two social groups and an interest in children’s perspectives. A multi-stage, multi-method study was undertaken with children aged 10/11 years living in the relatively deprived, ‘Social Inclusion Partnership’ (SIP), areas of a Scottish city. A period of familiarisation, through participant observation, was undertaken with Year 6 children in one school, followed by paired and individual interviews with 17 children. A survey was then conducted with 375 children in primary schools across the SIP areas. In general it seemed that ‘relationships’ with individual adults, other than with parents, were not particularly important to the children, who, with a few exceptions, did not seek out such adults and generally indicated a preference for spending time with other children. However, knowing and being able to identify adults within and beyond their families was very important to children’s sense of self and to their feelings of belonging to a family and within a neighbourhood. The children did experience their worlds and those of adults as separate. Mobility beyond their neighbourhood without adult accompaniment, to visit swimming pools, cinemas, and retail facilities, provided children with opportunities to observe and experience a range of ‘unknown’ adults, and particularly ‘public workers’. This experientially confirmed their conceptualisations of adults as a separate social group occupying a higher status than children. The research process in itself indicated that in some circumstances children did have an interest in interacting with adults, and that time, negotiation, testing and trusting were part of the relationship forming process. The child-adult relationships formed in this study through engagement in ‘joint enterprises’, of play and research project, provide evidence for the possibilities of positive ‘generational proximity’ between children and adults.EThOS - Electronic Theses Online ServiceGBUnited Kingdo
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