Abstract:In spite of the considerable progress towards reducing illiteracy rates, many countries, including developed ones, have encountered difficulty achieving further reduction in these rates. This is worrying because illiteracy has been related to numerous health, social, and economic problems. Here, we show that the spatial patterns of illiteracy in urban systems have several features analogous to the spread of diseases such as dengue and obesity. Our results reveal that illiteracy rates are spatially long-range c… Show more
“…The physics of percolation transitions [34][35][36] may offer solutions, but a unifying statistical mechanics remains to be found which predicts a transition in human behavior (crime), health (mortality), economics (property transaction values), and age demographics at a critical density remains to be found.…”
Section: Resultsmentioning
confidence: 99%
“…The critical density appears robustly near 27 p/h, but the reason it appears at that scale is unclear. The physics of percolation transitions 34 – 36 may offer solutions, but a unifying statistical mechanics remains to be found which predicts a transition in human behavior (crime), health (mortality), economics (property transaction values), and age demographics at a critical density remains to be found. Figure 4 The critical population densities for metrics with segmented scaling.…”
Section: Resultsmentioning
confidence: 99%
“…Older people (55 and above) clustered with mortality except for bone cancer. The very young (0-14) and middle-aged people(35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53)(54) clustered with property. Most correlations in the first two clusters were positive, while most property indicators were anti-correlated with children aged 0-14.…”
The urban scaling hypothesis has improved our understanding of cities; however, rural areas have been neglected. We investigated rural–urban population density scaling in England and Wales using 67 indicators of crime, mortality, property, and age. Most indicators exhibited segmented scaling about a median critical density of 27 people per hectare. Above the critical density, urban regions preferentially attract young adults (25–40 years) and lose older people (> 45 years). Density scale adjusted metrics (DSAMs) were analysed using hierarchical clustering, networks, and self-organizing maps (SOMs) revealing regional differences and an inverse relationship between excess value of property transactions and a range of preventable mortality (e.g. diabetes, suicide, lung cancer). The most striking finding is that age demographics break the expected self-similarity underlying the urban scaling hypothesis. Urban dynamism is fuelled by preferential attraction of young adults and not a fundamental property of total urban population.
“…The physics of percolation transitions [34][35][36] may offer solutions, but a unifying statistical mechanics remains to be found which predicts a transition in human behavior (crime), health (mortality), economics (property transaction values), and age demographics at a critical density remains to be found.…”
Section: Resultsmentioning
confidence: 99%
“…The critical density appears robustly near 27 p/h, but the reason it appears at that scale is unclear. The physics of percolation transitions 34 – 36 may offer solutions, but a unifying statistical mechanics remains to be found which predicts a transition in human behavior (crime), health (mortality), economics (property transaction values), and age demographics at a critical density remains to be found. Figure 4 The critical population densities for metrics with segmented scaling.…”
Section: Resultsmentioning
confidence: 99%
“…Older people (55 and above) clustered with mortality except for bone cancer. The very young (0-14) and middle-aged people(35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53)(54) clustered with property. Most correlations in the first two clusters were positive, while most property indicators were anti-correlated with children aged 0-14.…”
The urban scaling hypothesis has improved our understanding of cities; however, rural areas have been neglected. We investigated rural–urban population density scaling in England and Wales using 67 indicators of crime, mortality, property, and age. Most indicators exhibited segmented scaling about a median critical density of 27 people per hectare. Above the critical density, urban regions preferentially attract young adults (25–40 years) and lose older people (> 45 years). Density scale adjusted metrics (DSAMs) were analysed using hierarchical clustering, networks, and self-organizing maps (SOMs) revealing regional differences and an inverse relationship between excess value of property transactions and a range of preventable mortality (e.g. diabetes, suicide, lung cancer). The most striking finding is that age demographics break the expected self-similarity underlying the urban scaling hypothesis. Urban dynamism is fuelled by preferential attraction of young adults and not a fundamental property of total urban population.
“…Interestingly, there is an extensive literature on the investigation of spatial correlations of events in urban areas in terms of clustering and percolation transition (see, for example, Refs. [47,48]). In these studies, the correlations between pairs of sites usually decay with their geographical distance.…”
Based on a data set of dengue cases in the Brazilian city of Fortaleza, collected from 2011 to 2016, we study the spatio-temporal characteristics of dengue outbreaks to characterize epidemic and non-epidemic years. First, we identify regions that show a high incidence of dengue cases and mosquito larvae in different years and analyze their corresponding correlations. We find that the characteristic correlation length of the epidemic is at least of the order of the system size, suggesting that factors such as citizen mobility may play a significant role in driving the spatial spread of the disease. We also find that in epidemic years, spatial correlations are substantially higher with a distribution skewed towards large values than non-epidemic years. Inspired by this observation, we perform a mean-field estimation of the basic reproduction number and find that the estimated values agree well with the values reported for other regions in Brazil and other countries, pointing towards similar underlying spreading mechanisms. These findings provide insights into the spreading characteristics of dengue in densely populated areas and may be relevant for improving disease containment strategies.
“…It impacts on a child's well-being and behaviour and, when acquired successfully it has life-long benefits. There are numerous unfortunate correlates of functional illiteracy, including health problems such as diabetes, hypertension, depression, and schizophrenia; unhealthy habits such as smoking, violent behaviours; and reduced life expectancy (Alves et al, 2019). Functional illiteracy is also associated with risk factors for criminal offending (Seelig & Rate, 2014), impaired socialisation and limited employment opportunities (Przybylska, 2018).…”
<p><b>New Zealand’s reading achievement data has been in decline for decades. The focus of reading interventions for struggling readers is in the junior primary school. There are no systematic interventions for older struggling readers, leaving them with little hope of recovery to typical levels of achievement. The current intervention paradigm (Reading Recovery) follows the whole language approach, leaving too many children still struggling in the upper primary school.</b></p>
<p>The ‘Reading Wars’ are a long running, often acrimonious, philosophical debate surrounding the most efficacious pedagogical approach between top down (whole-language) and bottom up (word-level) approaches. Quantitative, empirical research over the past 50 years has converged to demonstrate that the bottom up approach is more effective and efficient, teaching novice readers the skills of proficient readers rather than to guess at unknown words, a hallmark of struggling readers. Even so, New Zealand teachers have a strong pedagogical link to the constructivist whole-language approach to the teaching of reading, which is enshrined in curriculum documents, policy, programmes and professional development.</p>
<p>This research of this thesis comprises two studies. The first follows the work of Chapman and colleagues (2015b) who surveyed teachers of Year 0 to 3 students to investigate their knowledge and self-efficacy in literacy teaching. A total of 65 teachers of Year 4 to 8 students completed the same survey. These teachers represented all areas of New Zealand, all school sizes and all deciles, excepting decile 10. Of these 88% had no formal training in literacy pedagogy and 95% were graduates or postgraduates. Confidence was surveyed using a Likert scale and knowledge of language by short response answers. Findings showed that teachers’ confidence was positive overall. However, respondents expressed less confidence teaching children who are English language learners or who have reading or spelling difficulties. Respondents also expressed low confidence in their ability to explain metalinguistics to parents. The latter point was borne out in the knowledge section of the survey where there was a mismatch between the reported levels of confidence and their actual ability to complete tasks designed to examine their knowledge of literacy. These findings demonstrated a lack of deep knowledge of the English orthographic code. These findings align to an OECD (2019b) study that found that less than a half of New Zealand graduating teachers feel adequately prepared to teach mixed ability classes. Furthermore, Nicholson (2008) noted that a majority of teachers report low confidence in being able to teach reading to struggling readers.</p>
<p>Study Two used a quasi-experimental design with a control group and two intervention groups. A ‘word-level only’ intervention group followed lessons developed from the science of reading literature. A ‘word-plus-screen’ intervention group followed the same lessons with the addition of the teacher projecting a novel into a large screen and reading aloud to the students, whilst explicitly making connections to the lessons of the word-level intervention. 152 students who were classified by previous and current year teachers as being either below or well-below curriculum expectations for reading, were involved in the study. Results showed that the control group slipped further behind curriculum expectation achieving an average of a third of the reading growth in a measure of reading comprehension of typically achieving readers. The word-level intervention had minimal effectiveness with students making half the progress of typically achieving readers the same measure of reading comprehension. Some anomalies were noted with a decrease in achievement at the end of the intervention followed by a recovery which may have continued beyond the scope of the research. The word-plus-screen intervention group made accelerated progress on all measures including one and a half times the expected improvement of their typically achieving peers on the measure of reading comprehension. Extrapolating results indicate that students experiencing the word-plus-screen intervention could potentially return to the levels of their same age peers within approximately three years regardless of sex, ethnicity or socioeconomic status.</p>
<p>In the absence of effective intervention the reading achievement of older struggling readers is likely to improve slowly, if at all. However, intervention combining science and technology indicate closing the achievement gap is feasible. This will require a change in the pedagogical approach to the teaching of reading.</p>
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