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https://www.readbyqxmd.com/read/28816663/specificity-and-latent-correlation-learning-for-action-recognition-using-synthetic-multi-view-data-from-depth-maps
#1
Bin Liang, Lihong Zheng
This paper presents a novel approach to action recognition using synthetic multi-view data from depth maps. Specifically, multiple views are firstly generated by rotating 3D point clouds from depth maps. A pyramid multi-view depth motion template (MVDMT) is then adopted for multi-view action representation, characterizing the multi-scale motion and shape patterns in 3D. Empirically, despite the view-specific information, the latent information between multiple views often provides important cues for action recognition...
August 14, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28816470/effects-of-postwarning-specificity-on-memory-performance-and-confidence-in-the-eyewitness-misinformation-paradigm
#2
Philip A Higham, Hartmut Blank, Karlos Luna
The influence of postevent misinformation on memory is typically constrained by postwarnings, but little is known about the effectiveness of particular features of postwarnings, such as their specificity. Experiment 1 compared 2 levels of postwarning specificity: A general postwarning just stated the presence of misinformation, whereas a specific postwarning identified the test items for which misinformation had been presented earlier. The specific postwarning, but not the general postwarning, eliminated both the misinformation effect and its deleterious impact on memory monitoring (using a classic 2-alternative forced-choice recognition procedure)...
August 17, 2017: Journal of Experimental Psychology. Applied
https://www.readbyqxmd.com/read/28815736/the-diagnosis-and-management-of-contact-lens-related-microbial-keratitis
#3
REVIEW
Nicole Carnt, Chameen Samarawickrama, Andrew White, Fiona Stapleton
Contact lens-associated microbial keratitis poses a diagnostic dilemma for optometrists on two fronts. The distinction between sterile inflammation and microbial infection is often blurred. In addition, there is a requirement with nearly 50 per cent of the Australian and New Zealand optometric profession being therapeutically endorsed, to distinguish between cases of infection that can be managed in the community verses those that require escalation to public hospitals that have access to laboratory diagnostic tools and advanced imaging techniques, such as in vivo confocal microscopy...
August 16, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28815531/mitochondria-endoplasmic-reticulum-contact-sites-mediate-innate-immune-responses
#4
Takuma Misawa, Michihiro Takahama, Tatsuya Saitoh
Mitochondria and the endoplasmic reticulum (ER) are fundamental organelles that coordinate high-order cell functions. Mitochondria are centers of energy production, whereas the ER is responsible for folding, transport, and degradation of proteins. In addition to their specific functions, mitochondria and ER actively communicate with each other to promote a variety of cellular events, such as material transfer and signal transduction. Recent studies have shown the critical involvement of these organelles in regulation of the innate immune system, which functions in host defense...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28815103/search-datasets-in-literature-a-case-study-of-gwas
#5
Xiao Dong, Yaoyun Zhang, Hua Xu
One of the missions of the NIH BD2K (Big Data to Knowledge) initiative is to make data discoverable and promote the re-use of existing datasets. Our ultimate goal is to develop a scalable approach that can automatically scan millions of scientific publications and identify underlying data sets. Using Genome-Wide Association Studies (GWAS) as a use case, we conducted an initial study to identify GWAS dataset attributes in MEDLINE abstracts, by developing a hybrid approach that combines domain dictionaries and pattern-based rules...
2017: AMIA Summits on Translational Science Proceedings
https://www.readbyqxmd.com/read/28814843/effects-of-hearing-loss-on-speech-recognition-under-distracting-conditions-and-working-memory-in-the-elderly
#6
Wondo Na, Gibbeum Kim, Gungu Kim, Woojae Han, Jinsook Kim
PURPOSE: The current study aimed to evaluate hearing-related changes in terms of speech-in-noise processing, fast-rate speech processing, and working memory; and to identify which of these three factors is significantly affected by age-related hearing loss. METHODS: One hundred subjects aged 65-84 years participated in the study. They were classified into four groups ranging from normal hearing to moderate-to-severe hearing loss. All the participants were tested for speech perception in quiet and noisy conditions and for speech perception with time alteration in quiet conditions...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28814646/the-intracellular-immune-receptor-sw-5b-confers-broad-spectrum-resistance-to-tospoviruses-through-recognition-of-a-conserved-21-amino-acid-viral-effector-epitope
#7
Min Zhu, Lei Jiang, Baohui Bai, Wenyang Zhao, Xiaojiao Chen, Jia Li, Yong Liu, Zhengqiang Chen, Boting Wang, Chunli Wang, Qian Wu, Qian-Hua Shen, Savithramma P Dinesh-Kumar, Xiaorong Tao
Plants use both cell surface-resident pattern-recognition receptors (PRRs) and intracellular nucleotide-binding leucine-rich repeat (NLR) receptors to detect various pathogens. Plant PRRs typically recognize conserved pathogen-associated molecular patterns (PAMPs) to provide broad-spectrum resistance. By contrast, plant NLRs generally detect pathogen strain-specific effectors and confer race-specific resistance. Here, we demonstrate that the tomato NLR Sw-5b confers broad-spectrum resistance against American type tospoviruses by recognizing a conserved 21-amino-acid peptide region within viral movement protein NSm (NSm21)...
August 16, 2017: Plant Cell
https://www.readbyqxmd.com/read/28814045/across-user-adaptation-for-a-powered-lower-limb-prosthesis
#8
John A Spanias, Ann M Simon, Levi J Hargrove
Pattern recognition algorithms have been used to control powered lower limb prostheses because they are capable of identifying the intent of the amputee user and therefore can provide a method for seamlessly transitioning between the different locomotion modes of the prosthesis. However, one major limitation of current algorithms is that they require subject-specific data from the individual user. These data are difficult and time-consuming to collect and consequently these algorithms do not generalize well across users...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813991/voluntary-phantom-hand-and-finger-movements-in-transhumerai-amputees-could-be-used-to-naturally-control-polydigital-prostheses
#9
Nathanael Jarrasse, Caroline Nicol, Florian Richer, Amelie Touillet, Noel Martinet, Jean Paysant, Jozina B De Graaf
An arm amputation is extremely invalidating since many of our daily tasks require bi-manual and precise control of hand movements. Perfect hand prostheses should therefore offer a natural, intuitive and cognitively simple control over their numerous biomimetic active degrees of freedom. While efficient polydigital prostheses are commercially available, their control remains complex to master and offers limited possibilities, especially for high amputation levels. In this pilot study, we demonstrate the possibility for upper-arm amputees to intuitively control a polydigital hand prosthesis by using surface myoelectric activities of residual limb muscles (sEMG) associated with phantom limb movements, even if these residual arm muscles on which the phantom activity is measured were not naturally associated with hand movements before amputation...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813986/evaluation-of-the-myo-armband-for-the-classification-of-hand-motions
#10
I Mendez, B W Hansen, C M Grabow, E J L Smedegaard, N B Skogberg, X J Uth, A Bruhn, B Geng, E N Kamavuako
Pattern recognition-based control systems have been widely investigated in prostheses and virtual reality environments to improve amputees' quality of life. Most of these systems use surface electromyography (EMG) to detect user movement intentions. The Myo armband (MYB) is a wireless wearable device, developed by Thalmic Labs, which enables EMG recordings with a limited bandwidth (<100Hz). The aim of this study was to compare MYB's narrow bandwidth with a conventional EMG acquisition system (CONV) that captures the full EMG spectrum to assess its suitability for pattern recognition control...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813784/longitudinal-high-density-emg-classification-case-study-in-a-glenohumeral-tmr-subject
#11
Meike A Schweisfurth, Jennifer Ernst, Ivan Vujaklija, Arndt F Schilling, Dario Farina, Oskar C Aszmann, Gunther Felmerer
Targeted muscle reinnervation (TMR) represents a breakthrough interface for prosthetic control in high-level upper-limb amputees. However, clinically, it is still limited to the direct motion-wise control restricted by the number of reinnervation sites. Pattern recognition may overcome this limitation. Previous studies on EMG classification in TMR patients experienced with myocontrol have shown greater accuracy when using high-density (HD) recordings compared to conventional single-channel derivations. This case study investigates the potential of HD-EMG classification longitudinally over a period of 17 months post-surgery in a glenohumeral amputee...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28812976/learning-and-recognition-of-tactile-temporal-sequences-by-mice-and-humans
#12
Michael R Bale, Malamati Bitzidou, Anna Pitas, Leonie S Brebner, Lina Khazim, Stavros T Anagnou, Caitlin D Stevenson, Miguel Maravall
The world around us is replete with stimuli that unfold over time. When we hear an auditory stream like music or speech or scan a texture with our fingertip, physical features in the stimulus are concatenated in a particular order. This temporal patterning is critical to interpreting the stimulus. To explore the capacity of mice and humans to learn tactile sequences, we developed a task in which subjects had to recognise a continuous modulated noise sequence delivered to whiskers or fingertips, defined by its temporal patterning over hundreds of milliseconds...
August 16, 2017: ELife
https://www.readbyqxmd.com/read/28812547/lung-epithelial-cells-therapeutically-inducible-effectors-of-antimicrobial-defense
#13
REVIEW
M M Leiva-Juárez, J K Kolls, S E Evans
Lung epithelial cells are increasingly recognized to be active effectors of microbial defense, contributing to both innate and adaptive immune function in the lower respiratory tract. As immune sentinels, lung epithelial cells detect diverse pathogens through an ample repertoire of membrane-bound, endosomal, and cytosolic pattern-recognition receptors (PRRs). The highly plastic epithelial barrier responds to detected threats via modulation of paracellular flux, intercellular communications, mucin production, and periciliary fluid composition...
August 16, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28812361/ultrasensitive-and-accurate-assay-of-human-methyltransferase-activity-at-the-single-cell-level-based-on-a-single-integrated-magnetic-microprobe
#14
Haiyan Zhao, Lei Wang, Weiqi Li, Shumei Zhai, Wei Jiang
Human DNA methyltransferase (MTase) activity expression patterns and inhibition response are linked to related cancer initiation, progression and therapeutic responses. Sensitive and accurate human MTase activity assay in cancer cells, especially at the single-cell level, is essential for biological study, clinical diagnosis and therapy. Here, we developed an ultrasensitive and accurate DNA (cytosine-5)-methyltransferase 1 (Dnmt1) activity assay at the single-cell level based on a single integrated magnetic microprobe of functionalized double-stranded DNA (dsDNA) anchored to a single magnetic microbead surface...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28812355/adaptively-recognizing-parallel-stranded-duplex-structure-for-fluorescent-dna-polarity-analysis
#15
Mei-Yun Ye, Rui-Tao Zhu, Xiang Li, Xiao-Shun Zhou, Zheng-Zhi Yin, Qian Li, Yong Shao
Besides the canonical Watson-Crick (WC) linked antiparallel-stranded duplex (aps-DNA), DNA is also able to form bioactive parallel-stranded duplex (ps-DNA) with the two involving strands adopting the equal 5'-3' polarity. Discriminating ps-DNA from aps-DNA with an ideal selectivity is more challenging because of their comparable duplex topologies. Herein, we designed a unique probe of HPIN to fluorescently recognize ps-DNA but to keep an almost nonfluorescent response in binding with aps-DNA. The success of the Hoogsteen hydrogen bonding pattern in lighting up the HPIN fluorescence over the reverse Watson-Crick (rWC) one suggests the critical role of HPIN in structurally adaptive recognition to the strand polarity-determined base-pairing peculiarity...
August 16, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28811886/comparison-of-photo-matching-algorithms-commonly-used-for-photographic-capture-recapture-studies
#16
Maximilian Matthé, Marco Sannolo, Kristopher Winiarski, Annemarieke Spitzen-van der Sluijs, Daniel Goedbloed, Sebastian Steinfartz, Ulrich Stachow
Photographic capture-recapture is a valuable tool for obtaining demographic information on wildlife populations due to its noninvasive nature and cost-effectiveness. Recently, several computer-aided photo-matching algorithms have been developed to more efficiently match images of unique individuals in databases with thousands of images. However, the identification accuracy of these algorithms can severely bias estimates of vital rates and population size. Therefore, it is important to understand the performance and limitations of state-of-the-art photo-matching algorithms prior to implementation in capture-recapture studies involving possibly thousands of images...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28811657/colorimetric-fingerprints-of-gold-nanorods-for-discriminating-catecholamine-neurotransmitters-in-urine-samples
#17
Somayeh Jafarinejad, Mahmoud Ghazi-Khansari, Forough Ghasemi, Pezhman Sasanpour, M Reza Hormozi-Nezhad
Catecholamine neurotransmitters, generally including dopamine (DA), epinephrine (EP) and norepinephrine (NE) are known as substantial indicators of various neurological diseases. Simultaneous detection of these compounds and their metabolites is highly recommended in early clinical diagnosis. To this aim, in the present contribution, a high performance colorimetric sensor array has been proposed for the detection and discrimination of catecholamines based on their reducing ability to deposit silver on the surface of gold nanorods (AuNRs)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810735/accurate-electrochemistry-analysis-of-circulating-methylated-dna-from-clinical-plasma-based-on-paired-end-tagging-and-amplifications
#18
Feng Chen, Xuyao Wang, Xiaowen Cao, Yongxi Zhao
Circulating methylated DNA has been a new kind of cancer biomarker, yet its small fraction of trace total DNA from clinical samples impairs the accurate analysis. Though fluorescence methods based on quantitative methylation specific PCR (qMSP) have been adopted routinely, yet alternative electrochemistry assay of such DNA from clinical samples remains a great challenge. Herein, we report accurate electrochemistry analysis of circulating methylated DNA from clinical plasma samples based on a paired-end tagging and amplifications strategy...
August 16, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28809758/optimizing-timing-performance-of-cdte-detectors-for-pet
#19
Mohammad Nakhostin
Despite several attractive properties, the poor timing performance of compound semiconductor detectors such as CdTe and CdZnTe has hindered their use in commercial PET imaging systems. The standard method of pulse timing with such detectors is to employ a constant-fraction discriminator (CFD) at the output of a timing filter which is fed by the pulses from a charge-sensitive preamplifier. The method has led to a time resolution of about 10 ns at full-width at half-maximum (FWHM) with 1 mm thick CdTe detectors...
August 15, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28808965/rna-pamps-as-molecular-tools-for-evaluating-rig-i-function-in-innate-immunity
#20
Renee C Ireton, Courtney Wilkins, Michael Gale
Pathogen recognition receptors (PRR)s and their cognate pathogen-associated molecular pattern (PAMP) represent the basis of innate immune activation and immune response induction driven by the host-pathogen interaction that occurs during microbial infection in humans and other animals. For RNA virus infection such as hepatitis C virus (HCV) and others, specific motifs within viral RNA mark it as nonself and visible to the host as a PAMP through interaction with RIG-I-like receptors including retinoic inducible gene-I (RIG-I)...
2017: Methods in Molecular Biology
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