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https://www.readbyqxmd.com/read/28534776/globally-consistent-wrinkle-aware-shading-of-line-drawings
#1
Pradeep Kumar Jayaraman, Chi-Wing Fu, Jianmin Zheng, Xueting Liu, Tien-Tsin Wong
Shading is a tedious process for artists involved in 2D cartoon and manga production given the volume of contents that the artists have to prepare regularly over tight schedule. While we can automate shading production with the presence of geometry, it is impractical for artists to model the geometry for every single drawing. In this work, we aim to automate shading generation by analyzing the local shapes, connections, and spatial arrangement of wrinkle strokes in a clean line drawing. By this, artists can focus more on the design rather than the tedious manual editing work, and experiment with different shading effects under different conditions...
May 17, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28534647/considering-built-environment-and-spatial-correlation-in-modelling-pedestrian-injury-severity
#2
Carlo G Prato, Sigal Kaplan, Alexandre Patrier, Thomas K Rasmussen
OBJECTIVE: This study looks at mitigating and aggravating factors that are associated with the injury severity of pedestrians when they have crashes with another road user and overcomes existing limitations in the literature by posing attention on the built environment and considering spatial correlation across crashes. METHOD: Reports for 6539 pedestrian crashes occurred in Denmark between 2006 and 2015 were merged with geographic information system resources containing detailed information about built environment and exposure at the crash locations...
May 23, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28531155/developing-health-related-indicators-of-climate-change-australian-stakeholder-perspectives
#3
Maryam Navi, Alana Hansen, Monika Nitschke, Scott Hanson-Easey, Dino Pisaniello
Climate-related health indicators are potentially useful for tracking and predicting the adverse public health effects of climate change, identifying vulnerable populations, and monitoring interventions. However, there is a need to understand stakeholders' perspectives on the identification, development, and utility of such indicators. A qualitative approach was used, comprising semi-structured interviews with key informants and service providers from government and non-government stakeholder organizations in South Australia...
May 22, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28525938/logistic-regression-model-for-detecting-radon-prone-areas-in-ireland
#4
J Elío, Q Crowley, R Scanlon, J Hodgson, S Long
A new high spatial resolution radon risk map of Ireland has been developed, based on a combination of indoor radon measurements (n=31,910) and relevant geological information (i.e. Bedrock Geology, Quaternary Geology, soil permeability and aquifer type). Logistic regression was used to predict the probability of having an indoor radon concentration above the national reference level of 200Bqm(-3) in Ireland. The four geological datasets evaluated were found to be statistically significant, and, based on combinations of these four variables, the predicted probabilities ranged from 0...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28520988/geographical-inequality-in-tobacco-control-in-china-multilevel-evidence-from-98-058-participants
#5
Thomas Astell-Burt, Mei Zhang, Xiaoqi Feng, Limin Wang, Yichong Li, Andrew Page, Maigeng Zhou, Linhong Wang
Background: We investigated the spatial patterning and correlates of tobacco smoking, exposure to second-hand smoke, smoking in public places, workplace smoking prohibition, pro- and counter-tobacco advertisements in mainland China. Methods: Choropleth maps and multilevel models were used to assess geographical variation and correlates of the aforementioned outcome variables for 98,058 participants across 31 provinces of China in 2010. Results: Current tobacco smoking prevalence was higher in the central provinces for men and in the north eastern provinces and Tibet for women...
May 17, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28510506/signaling-at-the-crossroads-matrix-derived-proteoglycan-and-reactive-oxygen-species-signaling
#6
Madalina-Viviana Nastase, Andrea Janicova, Malgorzata Wygrecka, Liliana Schaefer
SIGNIFICANCE: Proteoglycans (PGs), besides their structural contribution, have emerged as dynamic components that mediate a multitude of cellular events. The various roles of PGs are attributed to their structure, spatial localization, and ability to act as ligands and receptors. Reactive oxygen species (ROS) are small mediators, which are generated in physiological and pathological conditions. Besides their reactivity and ability to induce oxidative stress, a growing body of data suggests that ROS signaling is more relevant than direct radical damage in development of human pathologies...
May 16, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28508925/using-maldi-tof-ms-imaging-and-lc-hrms-for-the-investigation-of-the-degradation-of-polycaprolactone-diol-exposed-to-different-wastewater-treatments
#7
Daniel Rivas, Bozo Zonja, Peter Eichhorn, Antoni Ginebreda, Sandra Pérez, Damià Barceló
Polymers are used in high amounts in a wide range of applications from biomedicine to industry. Because of the growing awareness of the increasing amounts of plastic wastes in the aquatic environment during recent years, the evaluation of their biodegradability deserves special attention. In the past, most efforts were dedicated to studying the biodegradation of polyesters in soil and compost, while very little research has been conducted on their fate in wastewater. Here, we assessed the ability of bacterial communities residing in the aerobic and denitrification tank from a wastewater treatment plant (WWTP) to degrade the polymeric ester polycaprolactone diol (PCLD; average molecular weight of 1250 Da)...
May 16, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28490274/masked-primes-evoke-partial-responses
#8
Jennifer McBride, Petroc Sumner, Masud Husain
Backward-masked primes presented outside conscious awareness can affect responses to subsequently presented target stimuli. Differences in response times have been used to infer a pattern of sub-threshold activation and subsequent inhibition of motor plans associated with the primes. However, it is unclear whether competition between alternative responses is fully resolved in the brain, or whether activated responses can begin being executed before the final decision to act has been made. Here, we investigate the dynamics of responses evoked by masked primes using a continuous measure - voltage change in force sensing resistors simultaneously in both hands...
May 11, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28489538/a-perception-driven-approach-to-supervised-dimensionality-reduction-for-visualization
#9
Yunhai Wang, Kang Feng, Xiaowei Chu, Jian Zhang, Chi-Wing Fu, Michael Sedlmair, Xiaohui Yu, Baoquan Chen
Dimensionality reduction (DR) is a common strategy for visual analysis of labeled high-dimensional data. Low-dimensional representations of the data help, for instance, to explore the class separability and the spatial distribution of the data. Widely-used unsupervised DR methods like PCA do not aim to maximize the class separation, while supervised DR methods like LDA often assume certain spatial distributions and do not take perceptual capabilities of humans into account. These issues make them ineffective for complicated class structures...
May 5, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28469585/relative-spatial-frequency-processing-drives-hemispheric-asymmetry-in-conscious-awareness
#10
Elise A Piazza, Michael A Silver
Visual stimuli with different spatial frequencies (SFs) are processed asymmetrically in the two cerebral hemispheres. Specifically, low SFs are processed relatively more efficiently in the right hemisphere than the left hemisphere, whereas high SFs show the opposite pattern. In this study, we ask whether these differences between the two hemispheres reflect a low-level division that is based on absolute SF values or a flexible comparison of the SFs in the visual environment at any given time. In a recent study, we showed that conscious awareness of SF information (i...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28462753/the-passive-surveillance-of-ticks-using-companion-animal-electronic-health-records
#11
J S P Tulloch, L McGinley, F Sánchez-Vizcaíno, J M Medlock, A D Radford
Ticks represent a large global reservoir of zoonotic disease. Current surveillance systems can be time and labour intensive. We propose that the passive surveillance of companion animal electronic health records (EHRs) could provide a novel methodology for describing temporal and spatial tick activity. A total of 16 58 857 EHRs were collected over a 2-year period (31 March 2014 and 29 May 2016) from companion animals attending a large sentinel network of 192 veterinary clinics across Great Britain (the Small Animal Veterinary Surveillance Network - SAVSNET)...
May 2, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28455517/neural-activity-while-imitating-emotional-faces-is-related-to-both-lower-and-higher-level-social-cognitive-performance
#12
Colin Hawco, Natasa Kovacevic, Anil K Malhotra, Robert W Buchanan, Joseph D Viviano, Marco Iacoboni, Anthony R McIntosh, Aristotle N Voineskos
Imitation and observation of actions and facial emotional expressions activates the human fronto-parietal mirror network. There is skepticism regarding the role of this low-level network in more complex high-level social behaviour. We sought to test whether neural activation during an observation/imitation task was related to both lower and higher level social cognition. We employed an established observe/imitate task of emotional faces during functional MRI in 28 healthy adults, with final analyses based on 20 individuals following extensive quality control...
April 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28451311/decreasing-the-electronic-confinement-in-layered-perovskites-through-intercalation
#13
Matthew D Smith, Laurent Pedesseau, Mikaël Kepenekian, Ian C Smith, Claudine Katan, Jacky Even, Hemamala I Karunadasa
We show that post-synthetic small-molecule intercalation can significantly reduce the electronic confinement of 2D hybrid perovskites. Using a combined experimental and theoretical approach, we explain structural, optical, and electronic effects of intercalating highly polarizable molecules in layered perovskites designed to stabilize the intercalants. Polarizable molecules in the organic layers substantially alter the optical and electronic properties of the inorganic layers. By calculating the spatially resolved dielectric profiles of the organic and inorganic layers within the hybrid structure, we show that the intercalants afford organic layers that are more polarizable than the inorganic layers...
March 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28448253/a-map-of-abstract-relational-knowledge-in-the-human-hippocampal-entorhinal-cortex
#14
Mona M Garvert, Raymond J Dolan, Timothy Ej Behrens
The hippocampal-entorhinal system encodes a map of space that guides spatial navigation. Goal-directed behaviour outside of spatial navigation similarly requires a representation of abstract forms of relational knowledge. This information relies on the same neural system, but it is not known whether the organisational principles governing continuous maps may extend to the implicit encoding of discrete, non-spatial graphs. Here, we show that the human hippocampal-entorhinal system can represent relationships between objects using a metric that depends on associative strength...
April 27, 2017: ELife
https://www.readbyqxmd.com/read/28419682/game-theoretical-mapping-of-causal-interactions-underlying-visuo-spatial-attention-in-the-human-brain-based-on-stroke-lesions
#15
Monica N Toba, Melissa Zavaglia, Federica Rastelli, Romain Valabrégue, Pascale Pradat-Diehl, Antoni Valero-Cabré, Claus C Hilgetag
Anatomical studies conducted in neurological conditions have developed our understanding of the causal relationships between brain lesions and their clinical consequences. The analysis of lesion patterns extended across brain networks has been particularly useful in offering new insights on brain-behavior relationships. Here we applied multiperturbation Shapley value Analysis (MSA), a multivariate method based on coalitional game theory inferring causal regional contributions to specific behavioral outcomes from the characteristic functional deficits after stroke lesions...
April 17, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28414113/sept8a-and-sept8b-mrna-expression-in-the-developing-and-adult-zebrafish
#16
Constantin Berger, Frederik Helmprobst, Prisca Chapouton, Christina Lillesaar, Christian Stigloher
Septins are highly conserved GTP-binding proteins involved in numerous cellular processes. Despite a growing awareness of their roles in the cell biology, development and signal transmission in nervous systems, comparably little is known about precise septin expression. Here, we use the well-established model organism zebrafish (Danio rerio) to unravel the expression of sept8a and sept8b, with special focus on the CNS. We performed whole mount RNA in situ hybridization on zebrafish 1-4 dpf in combination with serial sectioning of epon-embedded samples as well as on brain sections of adult zebrafish to obtain precise histological mapping of gene expression...
April 14, 2017: Gene Expression Patterns: GEP
https://www.readbyqxmd.com/read/28385053/using-real-time-fmri-neurofeedback-to-restore-right-occipital-cortex-activity-in-patients-with-left-visuo-spatial-neglect-proof-of-principle-and-preliminary-results
#17
Fabien Robineau, Arnaud Saj, Rémi Neveu, Dimitri Van De Ville, Frank Scharnowski, Patrik Vuilleumier
Hemineglect is common after right parietal stroke, characterised by impaired awareness for stimuli in left visual space, with suppressed neural activity in the right visual cortex due to losses in top-down attention signals. Here we sought to assess whether hemineglect patients are able to up-regulate their right visual cortex activity using auditory real-time functional magnetic resonance imaging (rt-fMRI) neurofeedback. We also examined any effect of this training procedure on neglect severity. Two different neurofeedback methods were used...
April 6, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28375321/great-a-gradient-based-color-sampling-scheme-for-retinex
#18
Michela Lecca, Alessandro Rizzi, Raul Paolo Serapioni
Modeling the local color spatial distribution is a crucial step for the algorithms of the Milano Retinex family. Here we present GREAT, a novel, noise-free Milano Retinex implementation based on an image-aware spatial color sampling. For each channel of a color input image, GREAT computes a 2D set of edges whose magnitude exceeds a pre-defined threshold. Then GREAT re-scales the channel intensity of each image pixel, called target, by the average of the intensities of the selected edges weighted by a function of their positions, gradient magnitudes, and intensities relative to the target...
April 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/28358684/grass-a-gradient-based-random-sampling-scheme-for-milano-retinex
#19
Michela Lecca, Alessandro Rizzi, Raul Paolo Serapioni
Retinex is an early and famous theory attempting to estimate the human color sensation derived from an observed scene. When applied to a digital image, the original implementation of retinex estimates the color sensation by modifying the pixels channel intensities with respect to a local reference white, selected from a set of random paths. The spatial search of the local reference white influences the final estimation. The recent algorithm energy-driven termite retinex (ETR), as well as its predecessor termite retinex, has introduced a new path-based image aware sampling scheme, where the paths depend on local visual properties of the input image...
June 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28334687/neurocognitive-status-in-patients-with-newly-diagnosed-brain-tumors-in-good-neurological-condition-the-impact-of-tumor-type-volume-and-location
#20
Philipp Hendrix, Elisa Hans, Christoph J Griessenauer, Andreas Simgen, Joachim Oertel, Julia Karbach
OBJECTIVE: Neurocognitive function is of great importance in patients with brain tumors. Even patients in good neurological condition may suffer from neurocognitive dysfunction that affects their daily living. The purpose of the present study was to identify risk factors for neurocognitive dysfunction in patients suffering from common supratentorial brain tumors with minor neurological deficits. METHODS: A prospective study evaluating neurocognitive dysfunction in patients with a newly-diagnosed brain tumor in good neurological condition was performed at a major German academic institution...
May 2017: Clinical Neurology and Neurosurgery
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