1,720,969 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Evaluating the impact of the UK job retention scheme on mental health and wellbeing using matched difference-in-differences
No full textIn March 2020, the UK government implemented the Coronavirus Job Retention Scheme, otherwise known as furlough, to minimise the impact of job losses. The UK furlough protected jobs during the COVID-19 crisis, covering up to 80 per cent of a worker's monthly wage for hours not worked. We evaluate the causal effects of furlough on mental health, life satisfaction and loneliness, considering different labour market transitions in the pandemic. We employ a difference-in-differences estimator with propensity score matching, using data from the main stage and the COVID-19 waves of Understanding Society, the UK Household Longitudinal Study. We show that furlough protected workers’ mental health and well-being, compared with non-furloughed workers and unemployment. We also find no detrimental effect on well-being to being furloughed compared with continuous employment. The well-being gains from furlough are particularly evident for those with pre-existing health conditions. Overall, policies that mitigated negative labour market transitions during the pandemic had positive effects on the well-being of the working population
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Climatic variations and spatial price differentials of perishable foods in Nigeria
Get PDFAbstract - In this study, we attempt to examine the factors that explain the spatial price differentials of selected perishable food crops across Nigerian markets. Based on monthly market prices of onions and tomatoes across different States, we examine the implications of climatic variations, cost of transportation and differences in economic sizes on the price spread of these items. The empirical findings from the dynamic heterogeneous panel regressions show that these factors have significant long-run impacts on the difference in food prices across markets. The results highlight climatic differences and transportation costs are important factors in regional price spreads for agricultural commodities and hence the need for specific policies to reduce the prices variability. Policies geared towards improving agriculture value-chain could o er pathways towards mitigating food loss and waste associated with changing climate and transfer costs, and thereby reduction in prices
Essays on the impact of UK National Living Wage policy : insights into health, wellbeing, and informal caregiving
Get PDFMinimum wage remains a contentious policy issue with far-reaching implications for workers’ health, quality of life and the overall economy. This thesis contributes to the literature on the effects of minimum wage policy on public health by exploring the 2016 UK National Living Wage policy (NLW) and its subsequent annual upratings. In three self-contained but related essays, we employ data from the Understanding Society longitudinal household survey, and applied econometrics and quasi-experimental methods, to objectively consider the effects of NLW on health and wellbeing, considering the policy interactions with in-work social security benefits freeze and unpaid caregiving.The first essay begins with analyses of the association between income and different trajectories of income on self-reported health and wellbeing. We employed a fixed-effects ordered logit model which allows us to account for unobserved heterogeneity and time-invariant factors that may bias the estimated results. We show that income is a significant predictor of health and wellbeing. Also, our extended analyses show that stability and volatility in income are important determinants of self-reported health and wellbeing outcomes, while higher spells of low income increased the odds of reporting poor self-reported health and wellbeing outcomes. We also confirm a significant difference in the income and health nexus before and after the introduction of the NLW in 2016.The second essay employs recent developments in the difference-in-differences methods literature to investigate the mental health effects of the NLW. We employ the longitudinal hourly wage and age data in the Understanding Society survey to identify individuals that are eligible and received the NLW. We find that the NLW policy has a positive average treatment effect on affected workers’ mental health. We additionally consider the effects of the simultaneous introduction of a four-year freeze to in-work welfare support benefits. We find no evidence of improvements in mental health for individuals affected by the welfare benefits freeze policy, indicating that the negative impact of the benefits freeze policy constricts the NLW impacts. These findings suggest that wages increase through minimum wage and social security supports are complementary and should not be treated as alternatives. The overall prospects of reducing poverty and generating liveable income for working individuals may be more effective with their combination rather than substituting one for the other.The third essay extends the evaluation of the NLW to informal caregiving by considering the effects on unpaid carers’ work hours and health. While minimum wage is a focal point in shaping labour markets, addressing income inequality and social welfare, little attention has been given to understanding their influence on informal carers workforce. The informal care sector has a dual influence on labour supply and overall health and long-term care. We begin the empirical analysis by estimating the effects of becoming an informal carer, and we note a significant decline in work hours with negative average treatment effects on physical health. However, while the overall average treatment effects of becoming an informal carer on work hours is negative, receiving the NLW makes a positive difference for informal carers’ work hours but a null effect on health outcomes. The findings suggest differences in informal carers reactions to the NLW. While there is an overall decrease in work hours as a result of being unpaid carers, some carers increase their work hours following the NLW increase. By providing robust empirical evidence, this chapter underscores the potential role of the minimum wage as a tool to promote public health and well-being, especially for vulnerable populations in the labour market. Overall, the thesis contributes to the significance of wage policies to harmonise economic growth and advance public health and social equity, thereby contributing to a path of sustainable and inclusive development.Minimum wage remains a contentious policy issue with far-reaching implications for workers’ health, quality of life and the overall economy. This thesis contributes to the literature on the effects of minimum wage policy on public health by exploring the 2016 UK National Living Wage policy (NLW) and its subsequent annual upratings. In three self-contained but related essays, we employ data from the Understanding Society longitudinal household survey, and applied econometrics and quasi-experimental methods, to objectively consider the effects of NLW on health and wellbeing, considering the policy interactions with in-work social security benefits freeze and unpaid caregiving.The first essay begins with analyses of the association between income and different trajectories of income on self-reported health and wellbeing. We employed a fixed-effects ordered logit model which allows us to account for unobserved heterogeneity and time-invariant factors that may bias the estimated results. We show that income is a significant predictor of health and wellbeing. Also, our extended analyses show that stability and volatility in income are important determinants of self-reported health and wellbeing outcomes, while higher spells of low income increased the odds of reporting poor self-reported health and wellbeing outcomes. We also confirm a significant difference in the income and health nexus before and after the introduction of the NLW in 2016.The second essay employs recent developments in the difference-in-differences methods literature to investigate the mental health effects of the NLW. We employ the longitudinal hourly wage and age data in the Understanding Society survey to identify individuals that are eligible and received the NLW. We find that the NLW policy has a positive average treatment effect on affected workers’ mental health. We additionally consider the effects of the simultaneous introduction of a four-year freeze to in-work welfare support benefits. We find no evidence of improvements in mental health for individuals affected by the welfare benefits freeze policy, indicating that the negative impact of the benefits freeze policy constricts the NLW impacts. These findings suggest that wages increase through minimum wage and social security supports are complementary and should not be treated as alternatives. The overall prospects of reducing poverty and generating liveable income for working individuals may be more effective with their combination rather than substituting one for the other.The third essay extends the evaluation of the NLW to informal caregiving by considering the effects on unpaid carers’ work hours and health. While minimum wage is a focal point in shaping labour markets, addressing income inequality and social welfare, little attention has been given to understanding their influence on informal carers workforce. The informal care sector has a dual influence on labour supply and overall health and long-term care. We begin the empirical analysis by estimating the effects of becoming an informal carer, and we note a significant decline in work hours with negative average treatment effects on physical health. However, while the overall average treatment effects of becoming an informal carer on work hours is negative, receiving the NLW makes a positive difference for informal carers’ work hours but a null effect on health outcomes. The findings suggest differences in informal carers reactions to the NLW. While there is an overall decrease in work hours as a result of being unpaid carers, some carers increase their work hours following the NLW increase. By providing robust empirical evidence, this chapter underscores the potential role of the minimum wage as a tool to promote public health and well-being, especially for vulnerable populations in the labour market. Overall, the thesis contributes to the significance of wage policies to harmonise economic growth and advance public health and social equity, thereby contributing to a path of sustainable and inclusive development
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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