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https://www.readbyqxmd.com/read/28644834/automatic-non-symbolic-numerosity-processing-in-preschoolers
#1
Xiaoshuang Zhu, Yinghe Chen, Yanjun Li, Zhijun Deng
There has recently been an increasing focus on the development of automatic processing of numerical magnitude. However, little effort has been made to explore automatic access to non-symbolic numerical magnitude in preschool children. In experiment 1, we used a non-symbolic physical size comparison task in 3- to 6-year-olds to examine developmental changes and the effect of ratio and counting principle knowledge. Results showed that the existence of automatic non-symbolic numerical processing began at age 3-4 years and size congruity effects tended to reduce with increasing age from 4 years old...
2017: PloS One
https://www.readbyqxmd.com/read/28644815/landmark-image-retrieval-by-jointing-feature-refinement-and-multimodal-classifier-learning
#2
Xiaoming Zhang, Senzhang Wang, Zhoujun Li, Shuai Ma
Landmark retrieval is to return a set of images with their landmarks similar to those of the query images. Existing studies on landmark retrieval focus on exploiting the geometries of landmarks for visual similarity matches. However, the visual content of social images is of large diversity in many landmarks, and also some images share common patterns over different landmarks. On the other side, it has been observed that social images usually contain multimodal contents, i.e., visual content and text tags, and each landmark has the unique characteristic of both visual content and text content...
June 20, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28644811/applying-pattern-recognition-to-high-resolution-images-to-determine-cellular-signaling-status
#3
Michael F Lohrer, Darrin M Hanna, Yang Liu, Kang-Hsin Wang, Fu-Tong Liu, Ted A Laurence, Gang-Yu Liu
Two frequently used tools to acquire high-resolution images of cells are scanning electron microscopy (SEM) and atomic force microscopy (AFM). The former provides a nanometer resolution view of cellular features rapidly and with high throughput, while the latter enables visualizing hydrated and living cells. In current practice, these images are viewed by eye to determine cellular status, e.g. activated versus resting. Automatic and quantitative data analysis is lacking. This work develops an algorithm of pattern recognition that works very effectively for AFM and SEM images...
June 21, 2017: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/28644801/magnetic-particle-imaging-for-quantification-of-vascular-stenoses-a-phantom-study
#4
S Herz, P Vogel, T Kampf, M A Ruckert, S Veldhoen, V C Behr, T A Bley
Magnetic particle imaging (MPI) is a promising new tomographic imaging method to detect the spatial distribution of superparamagnetic iron-oxide nanoparticles (SPIOs). The aim of this study was to investigate the potential of MPI to quantify artificial stenoses in vessel phantoms. Custom-made stenosis phantoms (length 40 mm; inner diameter 8 mm) with different degrees of stenosis (0 %, 25 %, 50 %, 75 % and 100 %) were scanned in a custom-built MPI scanner (in-plane resolution: ~ 1-1.5 mm, field of view: 65 × 29 × 29 mm3)...
June 21, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28644768/error-feedback-frequency-affects-automaticity-but-not-accuracy-and-consistency-after-extensive-motor-skill-practice
#5
Daniel Krause, Manfred Agethen, Christina Zobe
Earlier studies addressed the effects of feedback frequency on movement accuracy and consistency. The authors additionally addressed the effects on motor automatization. High error feedback frequencies may induce attentional control processes and impede motor automatization. In a pre-post design, 42 participants were assigned to 2 groups with different feedback frequencies and practiced an arm movement sequence with 760 trials in 5 sessions. The 100% group practiced with feedback on 3 movement reversals of the sequence after each trial...
June 23, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28644398/a-novel-wearable-forehead-eog-measurement-system-for-human-computer-interfaces
#6
Jeong Heo, Heenam Yoon, Kwang Suk Park
Amyotrophic lateral sclerosis (ALS) patients whose voluntary muscles are paralyzed commonly communicate with the outside world using eye movement. There have been many efforts to support this method of communication by tracking or detecting eye movement. An electrooculogram (EOG), an electro-physiological signal, is generated by eye movements and can be measured with electrodes placed around the eye. In this study, we proposed a new practical electrode position on the forehead to measure EOG signals, and we developed a wearable forehead EOG measurement system for use in Human Computer/Machine interfaces (HCIs/HMIs)...
June 23, 2017: Sensors
https://www.readbyqxmd.com/read/28644397/relationship-between-remote-sensing-data-plant-biomass-and-soil-nitrogen-dynamics-in-intensively-managed-grasslands-under-controlled-conditions
#7
Christoph Knoblauch, Conor Watson, Clara Berendonk, Rolf Becker, Nicole Wrage-Mönnig, Florian Wichern
The sustainable use of grasslands in intensive farming systems aims to optimize nitrogen (N) inputs to increase crop yields and decrease harmful losses to the environment at the same time. To achieve this, simple optical sensors may provide a non-destructive, time- and cost-effective tool for estimating plant biomass in the field, considering spatial and temporal variability. However, the plant growth and related N uptake is affected by the available N in the soil, and therefore, N mineralization and N losses...
June 23, 2017: Sensors
https://www.readbyqxmd.com/read/28644378/an-energy-efficient-multi-tier-architecture-for-fall-detection-using-smartphones
#8
M Amac Guvensan, A Oguz Kansiz, N Cihan Camgoz, H Irem Turkmen, A Gokhan Yavuz, M Elif Karsligil
Automatic detection of fall events is vital to providing fast medical assistance to the causality, particularly when the injury causes loss of consciousness. Optimization of the energy consumption of mobile applications, especially those which run 24/7 in the background, is essential for longer use of smartphones. In order to improve energy-efficiency without compromising on the fall detection performance, we propose a novel 3-tier architecture that combines simple thresholding methods with machine learning algorithms...
June 23, 2017: Sensors
https://www.readbyqxmd.com/read/28644151/ecg-based-4d-dose-reconstruction-of-cardiac-arrhythmia-ablation-with-carbon-ion-beams-application-in-a-porcine-model
#9
Daniel Richter, H Immo Lehmann, Anna Eichhorn, Anna M Constantinescu, Robert Kaderka, Matthias Prall, Patrick Lugenbiel, Mitsuru Takami, Dierk Thomas, Christoph Bert, Marco Durante, Douglas L Packer, Christian Graeff
Noninvasive ablation of cardiac arrhythmia by scanned particle radiotherapy is highly promising, but especially challenging due to cardiac and respiratory motion. Irradiations for catheter-free ablation in intact pigs were carried out at the GSI Helmholtz Center in Darmstadt using scanned carbon ions. Here, we present real-time electrocardiogram (ECG) data to estimate time-resolved (4D) delivered dose. For 11 animals, surface ECGs and temporal structure of beam delivery were acquired during irradiation. R waves were automatically detected from surface ECGs...
June 23, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28644105/time-course-analyses-of-orthographic-and-phonological-priming-effects-in-developing-readers
#10
M H T Zeguers, H M Huizenga, M W van der Molen, P Snellings
It has been assumed that fluent reading requires efficient integration of orthographic and phonological codes. However, it is thus far unclear how this integration process develops when children learn to become fluent readers. Therefore, we used masked priming to investigate time courses of orthographic and phonological code activation in children at incremental levels of reading development (2nd, 4th and 6th grade). The first study used targets with small phonological differences between phonological and orthographic primes, which are typical in transparent orthographies...
June 23, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28644071/age-invariance-in-rapid-facial-affective-reactions-to-emotionally-valenced-stimuli
#11
Matthew R Nangle, Phoebe E Bailey, Julie D Henry, Georgina S Khlentzos, Kandice J Varcin, Alexis E Whitton
It has been suggested that an age-related positivity effect may only occur in the context of explicit information processing, but it is unclear whether this bias extends to the processing of rapid facial reactions. In addition, most studies that have looked for evidence of age-related implicit positivity have used attentional (as opposed to sensory) unawareness paradigms, or used broad-based indicators of attentional awareness that do not speak to the nature of the affective response. In the present study, younger and older adults were therefore asked to view non-facial images presented supraliminally (i...
June 23, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28643606/origin-of-low-molecular-mass-aldehydes-as-disinfection-by-products-in-beverages
#12
María Serrano, Mercedes Gallego, Manuel Silva
A novel, simple and automatic method based on static headspace-gas chromatography-mass spectrometry has been developed to determine 10 low-molecular mass aldehydes that can be found in beverages, coming from the treated water used in their production. These aldehydes are the most frequently found in treated water as water disinfection by-products, so they can be used as indicators of the addition of treated water to beverages. The study covered a large number of fruit juices and soft drinks. The presence of the whole array of analytes is related to the contact with treated water during beverage production, mainly by the addition of treated water as ingredient...
June 23, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28643050/application-of-transoral-continuous-intraoperative-neuromonitoring-in-natural-orifice-transluminal-endoscopic-surgery-for-thyroid-disease-a-preliminary-study
#13
Han-Kun Chen, Chun-Liang Chen, Kuo-Shan Wen, Yi-Feng Lin, Kai-Yuan Lin, Yih-Huei Uen
BACKGROUND: The novel concept of continuous intraoperative neuromonitoring (Cont-IONM) through stimulation of the vagal nerve has been used in thyroidectomies to prevent imminent injury of the recurrent laryngeal nerve (RLN). This article reports on this technology and the results of using transoral Cont-IONM in natural orifice transluminal endoscopic surgery for thyroid disease. METHODS: Cont-IONM of the RLN was achieved through automatic cyclical stimulation of the vagal nerve using a C2 monitor and delta stimulating electrode...
June 22, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28643024/automatic-seed-picking-for-brachytherapy-postimplant-validation-with-3d-ct-images
#14
Guobin Zhang, Qiyuan Sun, Shan Jiang, Zhiyong Yang, Xiaodong Ma, Haisong Jiang
PURPOSE: Postimplant validation is an indispensable part in the brachytherapy technique. It provides the necessary feedback to ensure the quality of operation. The ability to pick implanted seed relates directly to the accuracy of validation. To address it, an automatic approach is proposed for picking implanted brachytherapy seeds in 3D CT images. METHODS: In order to pick seed configuration (location and orientation) efficiently, the approach starts with the segmentation of seed from CT images using a thresholding filter which based on gray-level histogram...
June 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28642926/the-combined-effect-of-food-simulating-solutions-brushing-and-staining-on-color-stability-of-composite-resins
#15
Tânia Mara Da Silva, Ana Luísa Leme Simões Sales, Cesar Rogerio Pucci, Alessandra Bühler Borges, Carlos Rocha Gomes Torres
Objective: This study evaluated the effect of food-simulating media associated with brushing and coffee staining on color stability of different composite resins. Materials and methods: Eighty specimens were prepared for each composite: Grandio SO (Voco), Amaris (Voco), Filtek Z350XT (3M/ESPE), Filtek P90 (3M/ESPE). They were divided into four groups according to food-simulating media for 7 days: artificial saliva (control), heptane, citric acid and ethanol. The composite surface was submitted to 10,950 brushing cycles (200 g load) in an automatic toothbrushing machine...
January 2017: Acta Biomaterialia Odontologica Scandinavica
https://www.readbyqxmd.com/read/28642696/how-accumulated-real-life-stress-experience-and-cognitive-speed-interact-on-decision-making-processes
#16
Eva Friedel, Miriam Sebold, Sören Kuitunen-Paul, Stephan Nebe, Ilya M Veer, Ulrich S Zimmermann, Florian Schlagenhauf, Michael N Smolka, Michael Rapp, Henrik Walter, Andreas Heinz
Rationale: Advances in neurocomputational modeling suggest that valuation systems for goal-directed (deliberative) on one side, and habitual (automatic) decision-making on the other side may rely on distinct computational strategies for reinforcement learning, namely model-free vs. model-based learning. As a key theoretical difference, the model-based system strongly demands cognitive functions to plan actions prospectively based on an internal cognitive model of the environment, whereas valuation in the model-free system relies on rather simple learning rules from operant conditioning to retrospectively associate actions with their outcomes and is thus cognitively less demanding...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28642674/an-automatic-3d-ct-pet-segmentation-framework-for-bone-marrow-proliferation-assessment
#17
Chuong Nguyen, Joseph Havlicek, Quyen Duong, Sara Vesely, Ronald Gress, Liza Lindenberg, Peter Choyke, Jennifer Holter Chakrabarty, Kirsten Williams
Clinical assessment of bone marrow is limited by an inability to evaluate the marrow space comprehensively and dynamically and there is no current method for automatically assessing hematopoietic activity within the medullary space. Evaluating the hematopoietic space in its entirety could be applicable in blood disorders, malignancies, infections, and medication toxicity. In this paper, we introduce a CT/PET 3D automatic framework for measurement of the hematopoietic compartment proliferation within osseous sites...
September 2016: Proceedings
https://www.readbyqxmd.com/read/28641817/-preventing-violence-in-schizophrenia-with-cognitive-remediation
#18
C Darmedru, C Demily, N Franck
OBJECTIVES: The association between schizophrenia and violence represents an important issue in psychiatry. Often highly publicized, violent acts raise the question of their detection, prevention, management and treatment. There is no single, direct and exclusive link between aggressiveness and the underlying psychiatric disorder. On the contrary, the processes underlying this violence are multiple and interlinked. In addition to static and dynamic risk factors, cognitive deficits play an important role in the genesis and maintenance of violent and aggressive behavior...
June 19, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28641300/prenatal-diagnosis-of-dextrocardia-with-complex-congenital-heart-disease-using-fetal-intelligent-navigation-echocardiography-fine-and-a-literature-review
#19
Lami Yeo, Suchaya Luewan, Dor Markush, Navleen Gill, Roberto Romero
Fetal dextrocardia is a type of cardiac malposition where the major axis from base to apex points to the right side. This condition is usually associated with a wide spectrum of complex cardiac defects. As a result, dextrocardia is conceptually difficult to understand and diagnose on prenatal ultrasound. The advantage of four-dimensional sonography with spatiotemporal image correlation (STIC) is that this modality can facilitate fetal cardiac examination. A novel method known as fetal intelligent navigation echocardiography (FINE) allows automatic generation of nine standard fetal echocardiography views in normal hearts by applying intelligent navigation technology to STIC volume datasets...
June 23, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28641273/learning-and-recognition-of-clothing-genres-from-full-body-images
#20
Shintami C Hidayati, Chuang-Wen You, Wen-Huang Cheng, Kai-Lung Hua
According to the theory of clothing design, the genres of clothes can be recognized based on a set of visually differentiable style elements, which exhibit salient features of visual appearance and reflect high-level fashion styles for better describing clothing genres. Instead of using less-discriminative low-level features or ambiguous keywords to identify clothing genres, we proposed a novel approach for automatically classifying clothing genres based on the visually differentiable style elements. A set of style elements, that are crucial for recognizing specific visual styles of clothing genres, were identified based on the clothing design theory...
June 19, 2017: IEEE Transactions on Cybernetics
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