Anomaly Detection using a Convolutional Winner-Take-All Autoencoder

We propose a method for video anomaly detection using a winner-take-all convolutional autoencoder that has recently been shown to give competitive results in learning for classification task. The method builds on state of the art approaches to anomaly detection using a convolutional autoencoder and a one-class SVM to build a model of normality. The key novelties are (1) using the motion-feature encoding extracted from a convolutional autoencoder as input to a one-class SVM rather than exploiting reconstruction error of the convolutional autoencoder, and (2) introducing a spatial winner-take-all step after the final encoding layer during training to introduce a high degree of sparsity. We demonstrate an improvement in performance over the state of the art on UCSD and Avenue (CUHK) datasets

Arresting Early Childhood Caries with Silver Diamine Fluoride-A Literature Review

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It's a question of balance: Reconsidering learning partnerships through genuine teacher mentoring conversations

In Australia, and internationally, mentoring is proffered as a powerful professional learning experience for both early career teachers (ECTs) and their mentors alike. However, authentically beneficial learning partnerships have proven challenging to achieve. This paper provides a theoretical and practical response to this issue, arguing the criticality of genuine conversations cultivated through balanced, non-hierarchical questioning to position ECTs and mentors as co-learners. Drawing on positioning theory in conjunction with the concept of genuine conversations, the contents of five recorded mentoring conversations involving Australian ECTs and mentors were analysed. These findings have important implications for mentoring practice across educational contexts

Thresholds: observations on motion capture.

This paper theoretically situates research that explores motion capture data visualization using customized software tools such as MxCap.01. The value of software like MxCap.01 lies in its visualization capabilities including the ability to scale the re-presentation of the force, direction and intensity of movement but also do so within a temporal and emotive structuring

Myxomycetes recorded from three lowland tropical forests in Vietnam

Abstract The first report of myxomycetes from Vietnam was in 2009 by van Hooff, who listed 23 species, including one (Cribraria tecta) new to science, from moist chamber cultures prepared with samples of dead leaves, lychee husks, woody twigs and herbaceous stems. Two other species, both new to science, were reported in a recent paper. The project reported herein investigated the occurrence of myxomycetes in moist chamber cultures prepared with samples of various types of dead plant material collected in three lowland tropical forests in Vietnam. These samples were randomly collected from Cuc Phuong, Bu Gia Map and Nam Cat Tien national parks in the late dry season or between the dry season and the rainy season during 2012 and 2013. From 360 moist chambers, 43 species of myxomycetes representing 19 genera were recorded. The most abundant species were Arcyria cinerea, Collaria arcyrionema, Cribraria microcarpa, Cribraria violacea, Perichaena chrysosperma and Perichaena depressa. The taxonomic composition of the assemblage of species associated with the three study areas was found to be similar to what has been reported from Laos, Myanmar and Thailand, the other regions of SE Asia for which comparable studies have been carried out. In brief, the present project added 32 new records of myxomycetes for Vietnam, increasing the total number of species known from the country to 57

Twenty-year trajectories of cardio-metabolic factors among people with type 2 diabetes by dementia status in England: a retrospective cohort study.

To assess 20-year retrospective trajectories of cardio-metabolic factors preceding dementia diagnosis among people with type 2 diabetes (T2D). We identified 227,145 people with T2D aged > 42 years between 1999 and 2018. Annual mean levels of eight routinely measured cardio-metabolic factors were extracted from the Clinical Practice Research Datalink. Multivariable multilevel piecewise and non-piecewise growth curve models assessed retrospective trajectories of cardio-metabolic factors by dementia status from up to 19 years preceding dementia diagnosis (dementia) or last contact with healthcare (no dementia). 23,546 patients developed dementia; mean (SD) follow-up was 10.0 (5.8) years. In the dementia group, mean systolic blood pressure increased 16-19 years before dementia diagnosis compared with patients without dementia, but declined more steeply from 16 years before diagnosis, while diastolic blood pressure generally declined at similar rates. Mean body mass index followed a steeper non-linear decline from 11 years before diagnosis in the dementia group. Mean blood lipid levels (total cholesterol, LDL, HDL) and glycaemic measures (fasting plasma glucose and HbA1c) were generally higher in the dementia group compared with those without dementia and followed similar patterns of change. However, absolute group differences were small. Differences in levels of cardio-metabolic factors were observed up to two decades prior to dementia diagnosis. Our findings suggest that a long follow-up is crucial to minimise reverse causation arising from changes in cardio-metabolic factors during preclinical dementia. Future investigations which address associations between cardiometabolic factors and dementia should account for potential non-linear relationships and consider the timeframe when measurements are taken

Altered Posterior Midline Activity in Patients with Jerky and Tremulous Functional Movement Disorders

Objective: To explore changes in resting-state networks in patients with jerky and tremulous functional movement disorders (JT-FMD). Methods: Resting-state functional magnetic resonance imaging data from seventeen patients with JT-FMD and seventeen age-, sex-, and education-matched healthy controls (HC) were investigated. Independent component analysis was used to examine the central executive network (CEN), salience network, and default mode network (DMN). Frequency distribution of network signal fluctuations and intra- and internetwork functional connectivity were investigated. Symptom severity was measured using the Clinical Global Impression-Severity scale. Beck Depression Inventory and Beck Anxiety Inventory scores were collected tomeasure depression and anxiety in FMD, respectively. Results: Compared with HC, patients with JT-FMD had significantly decreased power of lower range (0.01-0.10 Hz) frequency fluctuations in a precuneus and posterior cingulate cortex component of the DMN and in the dorsal attention network (DAN) component of the CEN (false discovery rate-corrected p < 0.05). No significant group differences were found for intra- and internetwork functional connectivity. In patients with JT-FMD, symptom severity was not significantly correlated with network measures. Depression scores were weakly correlated with intranetwork functional connectivity in the medial prefrontal cortex, while anxiety was not found to be related to network connectivity. Conclusions: Given the changes in the posterodorsal components of the DMN and DAN, we postulate that the JT-FMD-related functional alterations found in these regions could provide support for the concept that particularly attentional dysregulation is a fundamental disturbance in these patients

Evidence for a nuclear compartment of transcription and splicing located at chromosome domain boundaries

The nuclear topography of splicing snRNPs, mRNA transcripts and chromosome domains in various mammalian cell types are described. The visualization of splicing snRNPs, defined by the Sm antigen, and coiled bodies, revealed distinctly different distribution patterns in these cell types. Heat shock experiments confirmed that the distribution patterns also depend on physiological parameters. Using a combination of fluorescencein situ hybridization and immunodetection protocols, individual chromosome domains were visualized simultaneously with the Sm antigen or the transcript of an integrated human papilloma virus genome. Three-dimensional analysis of fluorescence-stained target regions was performed by confocal laser scanning microscopy. RNA transcripts and components of the splicing machinery were found to be generally excluded from the interior of the territories occupied by the individual chromosomes. Based on these findings we present a model for the functional compartmentalization of the cell nucleus. According to this model the space between chromosome domains, including the surface areas of these domains, defines a three-dimensional network-like compartment, termed the interchromosome domain (ICD) compartment, in which transcription and splicing of mRNA occurs