110 research outputs found

    The Routledge handbook of vocabulary studies: A study in micro-bibliometrics

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    This paper reports a bibliometric analysis of two small data sets: a set of 34 papers that make up The Routledge handbook of vocabulary studies (Webb, 2020) and a set of papers dealing with second language (L2) vocabulary research taken from a single journal Frontiers in Psychology. Bibliometric maps based on author co-citations in these two data sets are presented and compared. Although the two data sets are comparable in terms of size, they appear to be very divergent. In particular, the significant sources identified in The Handbook map seem to play a relatively minor role in the Frontiers map. The obvious conclusion is that The Handbook is not as representative of L2 vocabulary research as its title might lead us to believe. The paper argues that micro-bibliometric studies like this one can sometimes highlight features that are lost in the more traditional large-scale bibliometric approach

    Vocabulary knowledge in relation to memory and analysis: An approximate replication of Milton's (2007) study on lexical profiles and learning style

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    This paper presents an approximate replication of Milton’s (2007) study on lexical profiles and learning style. Milton investigated the assumption that more frequent words are acquired before less frequent ones. Using a vocabulary recognition test (X-Lex) to measure vocabulary size, Milton found that L2 English group profiles show a linear relationship between greater knowledge of high frequency words and lesser knowledge of low frequency items. The profiles also showed variability in individual profiles. Milton hypothesised that the individual differences in profiles are partly attributable to different approaches to learning, as elicited via language aptitude tests of memory and analysis. Learner profiles that showed a linear relationship with vocabulary frequency scored higher on analysis; learners who had irregular profiles scored higher on memory. The aim of this replication is to confirm whether or not learning style may help to determine what L2 lexis is learnt. It duplicates the vocabulary size test and the memory and analysis tests. However, the replication uses regression analyses to determine whether memory or analysis contributes to vocabulary knowledge rather than a single ANOVA. Moreover, the L1 backgrounds are mixed, and the participants are older. The results from this replication do not support Milton’s findings, but a post-study supports the notion that there is a relationship between memory and vocabulary size at low proficiency. It is concluded that neither memory nor analysis is related to patterns in lexical profiles, but that memory contributes to vocabulary size

    Words as species: An alternative approach to estimating productive vocabulary size

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    This paper addresses the issue of how we might be able to assess productive vocabulary size in second language learners. It discusses some previous attempts to develop measures of this sort, and argues that a fresh approach is needed in order to overcome some persistent problems that dog research in this area. The paper argues that there might be some similarities between assessing productive vocabularies—where many of the words known by learners do not actually appear in the material we can extract them from—and counting animals in the natural environment. If this is so, then there might be a case for adapting the capture-recapture methods developed by ecologists to measure animal populations. The paper reports a preliminary attempt to develop this analogy

    Introduction: Special issue on knowledge and use of the lexicon in French as a second language

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    This is the first volume which exclusively focuses on vocabulary acquisition of L2 learners of French. All other volumes on the L2 acquisition of French have so far ignored this dimension. The issue is timely, because of the growing importance of vocabulary in the SLA research agenda, but also because research into vocabulary acquisition appears at the top of a list of areas in which teachers of Modern Foreign Languages are most interested (Macaro, 2003: 6).While it is difficult to assess the importance of all six articles for our understanding of lexical dimensions of language proficiency, it is clear that a key aspect of this volume is a methodological one: the tools and measures used in this study – many of which were developed by members of the M4 Applied Linguistics Network –make it possible to carry out valid and reliable analyses of learner’s knowledge across a range of national and educational contexts. The research community will also no doubt find it helpful to see how all tools and measures are evaluated in the different studies

    Assessing the inclusion of children's surgical care in National Surgical, Obstetric and Anaesthesia Plans:a policy content analysis

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    Objective While National Surgical, Obstetric and Anaesthesia Plans (NSOAPs) have emerged as a strategy to strengthen and scale up surgical healthcare systems in low/middle-income countries (LMICs), the degree to which children's surgery is addressed is not well-known. This study aims to assess the inclusion of children's surgical care among existing NSOAPs, identify practice examples and provide recommendations to guide inclusion of children's surgical care in future policies. Design We performed two qualitative content analyses to assess the inclusion of children's surgical care among NSOAPs. We applied a conventional (inductive) content analysis approach to identify themes and patterns, and developed a framework based on the Global Initiative for Children's Surgery's Optimal Resources for Children's Surgery document. We then used this framework to conduct a directed (deductive) content analysis of the NSOAPs of Ethiopia, Nigeria, Rwanda, Senegal, Tanzania and Zambia. Results Our framework for the inclusion of children's surgical care in NSOAPs included seven domains. We evaluated six NSOAPs with all addressing at least two of the domains. All six NSOAPs addressed € human resources and training' and € infrastructure', four addressed € service delivery', three addressed € governance and financing', two included € research, evaluation and quality improvement', and one NSOAP addressed € equipment and supplies' and € advocacy and awareness'. Conclusions Additional focus must be placed on the development of surgical healthcare systems for children in LMICs. This requires a focus on children's surgical care separate from adult surgical care in the scaling up of surgical healthcare systems, including children-focused needs assessments and the inclusion of children's surgery providers in the process. This study proposes a framework for evaluating NSOAPs, highlights practice examples and suggests recommendations for the development of future policies.</p

    Immediate and long-term impact of the COVID-19 pandemic on delivery of surgical services

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    Background The ongoing pandemic is having a collateral health effect on delivery of surgical care to millions of patients. Very little is known about pandemic management and effects on other services, including delivery of surgery. Methods This was a scoping review of all available literature pertaining to COVID‐19 and surgery, using electronic databases, society websites, webinars and preprint repositories. Results Several perioperative guidelines have been issued within a short time. Many suggestions are contradictory and based on anecdotal data at best. As regions with the highest volume of operations per capita are being hit, an unprecedented number of operations are being cancelled or deferred. No major stakeholder seems to have considered how a pandemic deprives patients with a surgical condition of resources, with patients disproportionally affected owing to the nature of treatment (use of anaesthesia, operating rooms, protective equipment, physical invasion and need for perioperative care). No recommendations exist regarding how to reopen surgical delivery. The postpandemic evaluation and future planning should involve surgical services as an essential part to maintain appropriate surgical care for the population during an outbreak. Surgical delivery, owing to its cross‐cutting nature and synergistic effects on health systems at large, needs to be built into the WHO agenda for national health planning. Conclusion Patients are being deprived of surgical access, with uncertain loss of function and risk of adverse prognosis as a collateral effect of the pandemic. Surgical services need a contingency plan for maintaining surgical care in an ongoing or postpandemic phase.publishedVersio

    Global access to surgical care: a modelling study

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    Background More than 2 billion people are unable to receive surgical care based on operating theatre density alone. The vision of the Lancet Commission on Global Surgery is universal access to safe, aff ordable surgical and anaesthesia care when needed. We aimed to estimate the number of individuals worldwide without access to surgical services as defi ned by the Commission’s vision. Methods We modelled access to surgical services in 196 countries with respect to four dimensions: timeliness, surgical capacity, safety, and aff ordability. We built a chance tree for each country to model the probability of surgical access with respect to each dimension, and from this we constructed a statistical model to estimate the proportion of the population in each country that does not have access to surgical services. We accounted for uncertainty with oneway sensitivity analyses, multiple imputation for missing data, and probabilistic sensitivity analysis. Findings At least 4·8 billion people (95% posterior credible interval 4·6–5·0 [67%, 64–70]) of the world’s population do not have access to surgery. The proportion of the population without access varied widely when stratifi ed by epidemiological region: greater than 95% of the population in south Asia and central, eastern, and western sub- Saharan Africa do not have access to care, whereas less than 5% of the population in Australasia, high-income North America, and western Europe lack access. Interpretation Most of the world’s population does not have access to surgical care, and access is inequitably distributed. The near absence of access in many low-income and middle-income countries represents a crisis, and as the global health community continues to support the advancement of universal health coverage, increasing access to surgical services will play a central role in ensuring health care for all

    Heterogeneity of genomic evolution and mutational profiles in multiple myeloma.

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    Multiple myeloma is an incurable plasma cell malignancy with a complex and incompletely understood molecular pathogenesis. Here we use whole-exome sequencing, copy-number profiling and cytogenetics to analyse 84 myeloma samples. Most cases have a complex subclonal structure and show clusters of subclonal variants, including subclonal driver mutations. Serial sampling reveals diverse patterns of clonal evolution, including linear evolution, differential clonal response and branching evolution. Diverse processes contribute to the mutational repertoire, including kataegis and somatic hypermutation, and their relative contribution changes over time. We find heterogeneity of mutational spectrum across samples, with few recurrent genes. We identify new candidate genes, including truncations of SP140, LTB, ROBO1 and clustered missense mutations in EGR1. The myeloma genome is heterogeneous across the cohort, and exhibits diversity in clonal admixture and in dynamics of evolution, which may impact prognostic stratification, therapeutic approaches and assessment of disease response to treatment

    Obstructed Labor and Caesarean Delivery: The Cost and Benefit of Surgical Intervention

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    Background: Although advances in the reduction of maternal mortality have been made, up to 273,000 women will die this year from obstetric etiologies. Obstructed labor (OL), most commonly treated with Caesarean delivery, has been identified as a major contributor to global maternal morbidity and mortality. We used economic and epidemiological modeling to estimate the cost per disability-adjusted life-year (DALY) averted and benefit-cost ratio of treating OL with Caesarean delivery for 49 countries identified as providing an insufficient number of Caesarean deliveries to meet demand. Methods and Findings Using publicly available data and explicit economic assumptions, we estimated that the cost per DALY (3,0,0) averted for providing Caesarean delivery for OL ranged widely, from 251perDALYavertedinMadagascarto251 per DALY averted in Madagascar to 3,462 in Oman. The median cost per DALY averted was $304. Benefit-cost ratios also varied, from 0.6 in Zimbabwe to 69.9 in Gabon. The median benefit-cost ratio calculated was 6.0. The main limitation of this study is an assumption that lack of surgical capacity is the main factor responsible for DALYs from OL. Conclusions: Using the World Health Organization's cost-effectiveness standards, investing in Caesarean delivery can be considered “highly cost-effective” for 48 of the 49 countries included in this study. Furthermore, in 46 of the 49 included countries, the benefit-cost ratio was greater than 1.0, implying that investment in Caesarean delivery is a viable economic proposition. While Caesarean delivery alone is not sufficient for combating OL, it is necessary, cost-effective by WHO standards, and ultimately economically favorable in the vast majority of countries included in this study

    Design and baseline characteristics of the finerenone in reducing cardiovascular mortality and morbidity in diabetic kidney disease trial

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    Background: Among people with diabetes, those with kidney disease have exceptionally high rates of cardiovascular (CV) morbidity and mortality and progression of their underlying kidney disease. Finerenone is a novel, nonsteroidal, selective mineralocorticoid receptor antagonist that has shown to reduce albuminuria in type 2 diabetes (T2D) patients with chronic kidney disease (CKD) while revealing only a low risk of hyperkalemia. However, the effect of finerenone on CV and renal outcomes has not yet been investigated in long-term trials. Patients and Methods: The Finerenone in Reducing CV Mortality and Morbidity in Diabetic Kidney Disease (FIGARO-DKD) trial aims to assess the efficacy and safety of finerenone compared to placebo at reducing clinically important CV and renal outcomes in T2D patients with CKD. FIGARO-DKD is a randomized, double-blind, placebo-controlled, parallel-group, event-driven trial running in 47 countries with an expected duration of approximately 6 years. FIGARO-DKD randomized 7,437 patients with an estimated glomerular filtration rate >= 25 mL/min/1.73 m(2) and albuminuria (urinary albumin-to-creatinine ratio >= 30 to <= 5,000 mg/g). The study has at least 90% power to detect a 20% reduction in the risk of the primary outcome (overall two-sided significance level alpha = 0.05), the composite of time to first occurrence of CV death, nonfatal myocardial infarction, nonfatal stroke, or hospitalization for heart failure. Conclusions: FIGARO-DKD will determine whether an optimally treated cohort of T2D patients with CKD at high risk of CV and renal events will experience cardiorenal benefits with the addition of finerenone to their treatment regimen. Trial Registration: EudraCT number: 2015-000950-39; ClinicalTrials.gov identifier: NCT02545049
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