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Pattern recognition

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https://www.readbyqxmd.com/read/28430279/microcontact-printing-with-aminosilanes-creating-biomolecule-micro-and-nanoarrays-for-multiplexed-microfluidic-bioassays
#1
Shivani Sathish, Sébastien G Ricoult, Kazumi Toda-Peters, Amy Q Shen
Microfluidic systems integrated with protein and DNA micro- and nanoarrays have been the most sought-after technologies to satisfy the growing demand for high-throughput disease diagnostics. As the sensitivity of these systems relies on the bio-functionalities of the patterned recognition biomolecules, the primary concern has been to develop simple technologies that enable biomolecule immobilization within microfluidic devices whilst preserving bio-functionalities. To address this concern, we introduce a two-step patterning approach to create micro- and nanoarrays of biomolecules within microfluidic devices...
April 21, 2017: Analyst
https://www.readbyqxmd.com/read/28429773/evaluation-of-the-precision-of-contrast-sensitivity-function-assessment-on-a-tablet-device
#2
Michael Dorr, Luis A Lesmes, Tobias Elze, Hui Wang, Zhong-Lin Lu, Peter J Bex
The contrast sensitivity function (CSF) relates the visibility of a spatial pattern to both its size and contrast, and is therefore a more comprehensive assessment of visual function than acuity, which only determines the smallest resolvable pattern size. Because of the additional dimension of contrast, estimating the CSF can be more time-consuming. Here, we compare two methods for rapid assessment of the CSF that were implemented on a tablet device. For a single-trial assessment, we asked 63 myopes and 38 emmetropes to tap the peak of a "sweep grating" on the tablet's touch screen...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429716/polyembryoma-of-the-testis-a-report-of-two-cases-dominant-within-mixed-germ-cell-tumors-and-review-of-gonadal-polyembryomas
#3
REVIEW
Jennifer N Stall, Robert H Young
Two testicular mixed germ cell tumors, from men of 21 and 41 years, in which polyembryoma predominated are described. A literature review uncovered an additional five testicular and nine ovarian cases. One tumor occurred in a 60-year-old man, but all others occurred within the typical age range of gonadal germ cell tumors. One male presented with gynecomastia and one female with sexual precocity, but all otherwise had standard clinical manifestations. These tumors are typically large with non-specific gross features, but a few have a prominent hemorrhagic appearance...
April 21, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28429195/computer-assisted-diagnosis-system-for-breast-cancer-in-computed-tomography-laser-mammography-ctlm
#4
Afsaneh Jalalian, Syamsiah Mashohor, Rozi Mahmud, Babak Karasfi, M Iqbal Saripan, Abdul Rahman Ramli
Computed tomography laser mammography (Eid et al. Egyp J Radiol Nucl Med, 37(1): p. 633-643, 1) is a non-invasive imaging modality for breast cancer diagnosis, which is time-consuming and challenging for the radiologist to interpret the images. Some issues have increased the missed diagnosis of radiologists in visual manner assessment in CTLM images, such as technical reasons which are related to imaging quality and human error due to the structural complexity in appearance. The purpose of this study is to develop a computer-aided diagnosis framework to enhance the performance of radiologist in the interpretation of CTLM images...
April 20, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28428631/an-overview-of-the-synergy-and-crosstalk-between-pentraxins-and-collectins-ficolins-their-functional-relevance-in-complement-activation
#5
REVIEW
Ying Jie Ma, Bok Luel Lee, Peter Garred
The complement system is an innate immune defense machinery comprising components that deploy rapid immune responses and provide efficient protection against foreign invaders and unwanted host elements. The complement system is activated upon recognition of pathogenic microorganisms or altered self-cells by exclusive pattern recognition molecules (PRMs), such as collectins, ficolins and pentraxins. Recent accumulating evidence shows that the different classes of effector PRMs build up a co-operative network and exert synergistic effects on complement activation...
April 21, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28425482/molecular-differentiation-of-five-cinnamomum-camphora-chemotypes-using-desorption-atmospheric-pressure-chemical-ionization-mass-spectrometry-of-raw-leaves
#6
Xiali Guo, Meng Cui, Min Deng, Xingxing Liu, Xueyong Huang, Xinglei Zhang, Liping Luo
Five chemotypes, the isoborneol-type, camphora-type, cineole-type, linalool-type and borneol-type of Cinnamomum camphora (L.) Presl have been identified at the molecular level based on the multivariate analysis of mass spectral fingerprints recorded from a total of 750 raw leaf samples (i.e., 150 leaves equally collected for each chemotype) using desorption atmospheric pressure chemical ionization mass spectrometry (DAPCI-MS). Both volatile and semi-volatile metabolites of the fresh leaves of C. camphora were simultaneously detected by DAPCI-MS without any sample pretreatment, reducing the analysis time from half a day using conventional methods (e...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28425471/nonspecific-synaptic-plasticity-improves-the-recognition-of-sparse-patterns-degraded-by-local-noise
#7
Karen Safaryan, Reinoud Maex, Neil Davey, Rod Adams, Volker Steuber
Many forms of synaptic plasticity require the local production of volatile or rapidly diffusing substances such as nitric oxide. The nonspecific plasticity these neuromodulators may induce at neighboring non-active synapses is thought to be detrimental for the specificity of memory storage. We show here that memory retrieval may benefit from this non-specific plasticity when the applied sparse binary input patterns are degraded by local noise. Simulations of a biophysically realistic model of a cerebellar Purkinje cell in a pattern recognition task show that, in the absence of noise, leakage of plasticity to adjacent synapses degrades the recognition of sparse static patterns...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28425447/development-and-pre-clinical-evaluation-of-recombinant-human-myelin-basic-protein-nano-therapeutic-vaccine-in-experimental-autoimmune-encephalomyelitis-mice-animal-model
#8
Medhat A Al-Ghobashy, Aliaa N ElMeshad, Rania M Abdelsalam, Mohammed M Nooh, Muhammad Al-Shorbagy, Götz Laible
Recombinant human myelin basic protein (rhMBP) was previously produced in the milk of transgenic cows. Differences in molecular recognition of either hMBP or rhMBP by surface-immobilized anti-hMBP antibodies were demonstrated. This indicated differences in immunological response between rhMBP and hMBP. Here, the activity of free and controlled release rhMBP poly(ε-caprolactone) nanoparticles (NPs), as a therapeutic vaccine against multiple sclerosis (MS) was demonstrated in experimental autoimmune encephalomyelitis (EAE) animal model...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28425415/drug-induced-liver-injury-at-a-tertiary-hospital-in-india-etiology-clinical-features-and-predictors-of-mortality
#9
Chetan Rathi, Nirav Pipaliya, Ruchir Patel, Meghraj Ingle, Aniruddha Phadke, Prabha Sawant
INTRODUCTION AND AIMS: Drug-induced liver injury (DILI) is rare; however, it is one of the important causes of acute liver failure which results in significant morbidity or mortality. MATERIAL AND METHODS: Patients with suspected DILI were enrolled based on predefined criteria and followed up for at least 6 months or until normalization of liver tests. Causality assessment was done by applying the Roussel Uclaf Causality Assessment Method model. RESULTS: We collected data from 82 individuals diagnosed with DILI at our hospital from 2014 through 2015 (41 men; median age, 38 years)...
May 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28424699/patient-s-experience-in-pediatric-primary-immunodeficiency-disorders-computerized-classification-of-questionnaires
#10
Urs Mücke, Christian Klemann, Ulrich Baumann, Almut Meyer-Bahlburg, Xiaowei Kortum, Frank Klawonn, Werner M Lechner, Lorenz Grigull
INTRODUCTION: Primary immunodeficiency disorders (PIDs) are a heterogeneous group of more than 200 rare diseases. Timely diagnosis is of uttermost importance. Therefore, we aimed to develop a diagnostic questionnaire with computerized pattern-recognition in order to support physicians to identify suspicious patient histories. MATERIALS AND METHODS: Standardized interviews were conducted with guardians of children with PID. The questionnaire based on parental observations was developed using Colaizzis' framework for content analysis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28424384/minor-physical-anomalies-and-dermatoglyphic-signs-in-affective-disorders-a-systematic-review
#11
Hajnalka Berecz, Györgyi Csábi, Róbert Herold, Daniel Trixler, Judit Fekete, Tamás Tényi
The increased prevalence of minor physical anomalies (MPAs) and the abnormalities of dermatoglyphic patterns may be physical manifestations of neurodevelopmental disruption in affective disorders. This paper aims to review the current state of knowledge on the frequency of MPAs and dermatoglyphic abnormalities in mood disorders. A MEDLINE, PsychInfo and Web of Science search was carried out to collect all publications on the frequency of MPAs and on dermatoglyphic traits in bipolar disorder and unipolar depression...
2017: Psychiatria Hungarica: A Magyar Pszichiátriai Társaság Tudományos Folyóirata
https://www.readbyqxmd.com/read/28424236/hyalinizing-trabecular-tumour-of-the-thyroid-fine-needle-aspiration-cytological-diagnosis-and-correlation-with-histology
#12
REVIEW
Chiara Saglietti, Simonetta Piana, Stefano La Rosa, Massimo Bongiovanni
Hyalinizing trabecular tumour (HTT) is a rare thyroid neoplasm of follicular cell origin characterised by a trabecular growth pattern and prominent intratrabecular and intertrabecular hyalinisation. These peculiar histological features allow the prompt recognition of this neoplasm in surgical specimens. However, cytological diagnosis of HTT remains elusive and misleading because of overlapping characteristics with other thyroid tumours, particularly papillary thyroid carcinoma (PTC), medullary thyroid carcinoma (MTC) and the newly described non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP)...
April 19, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28423316/diversity-in-excitation-inhibition-mismatch-underlies-local-functional-heterogeneity-in-the-rat-auditory-cortex
#13
Can Tao, Guangwei Zhang, Chang Zhou, Lijuan Wang, Sumei Yan, Huizhong Whit Tao, Li I Zhang, Yi Zhou, Ying Xiong
Cortical neurons are heterogeneous in their functional properties. This heterogeneity is fundamental for the processing of different features of sensory information. However, functional diversity within a local group of neurons is poorly understood. Here, we demonstrate that neighboring cortical neurons in layer 5 but not those of layer 4 of the rat anterior auditory field (AAF) exhibited a surprisingly high level of diversity in tonal receptive fields. In vivo whole-cell voltage-clamp recordings revealed that the diversity of frequency representation was due to a spectral mismatch between synaptic excitation and inhibition to varying degrees...
April 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28422714/toll-like-receptor-3-as-an-immunotherapeutic-target-for-kras-mutated-colorectal-cancer
#14
Radhashree Maitra, Titto Augustine, Yitzchak Dayan, Carol Chandy, Matthew Coffey, Sanjay Goel
New therapeutic interventions are essential for improved management of patients with metastatic colorectal cancer (mCRC). This is especially critical for those patients whose tumors harbor a mutation in the KRAS oncogene (40-45% of all patients). This patient cohort is excluded from receiving anti-EGFR monoclonal antibodies that have added a significant therapeutic benefit for KRAS wild type CRC patients. Reovirus, a double stranded (ds) RNA virus is in clinical development for patients with chemotherapy refractory KRAS mutated tumors...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422483/transparent-flexible-multifunctional-nanostructured-architectures-for-nonoptical-readout-and-proximity-and-pressure-sensing
#15
Mohit Rameshchandra Kulkarni, Rohit Abraham John, Mayank Rajput, Naveen Tiwari, Natalia Yantara, Anh Chien Nguyen, Nripan Mathews
Electronic skins need to be versatile and able to detect multiple inputs beyond simple pressure and touch while having attributes of transparency and facile manufacturability. Herein, we demonstrate a versatile nanostructured transparent sensor capable of detecting wide range of pressures and proximity as well as novel nonoptical detection of printed patterns. The architecture and fabrication processes are straightforward and show robustness to repeated cycling and testing. The sensor displays good sensitivity and stability from 30 Pa to 5 kPa without the use of microstructuration and is conformal and sensitive to be utilized as a wrist-based heart-rate monitor...
April 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28422088/clustering-by-fast-search-and-merge-of-local-density-peaks-for-gene-expression-microarray-data
#16
Rashid Mehmood, Saeed El-Ashram, Rongfang Bie, Hussain Dawood, Anton Kos
Clustering is an unsupervised approach to classify elements based on their similarity, and it is used to find the intrinsic patterns of data. There are enormous applications of clustering in bioinformatics, pattern recognition, and astronomy. This paper presents a clustering approach based on the idea that density wise single or multiple connected regions make a cluster, in which density maxima point represents the center of the corresponding density region. More precisely, our approach firstly finds the local density regions and subsequently merges the density connected regions to form the meaningful clusters...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28422010/synaptic-input-sequence-discrimination-on-behavioral-time-scales-mediated-by-reaction-diffusion-chemistry-in-dendrites
#17
Upinder Singh Bhalla
Sequences of events are ubiquitous in sensory, motor, and cognitive function. Key computational operations, including pattern recognition, event prediction, and plasticity, involve neural discrimination of spatio-temporal sequences. Here we show that synaptically-driven reaction-diffusion pathways on dendrites can perform sequence discrimination on behaviorally relevant time-scales. We used abstract signaling models to show that selectivity arises when inputs at successive locations are aligned with, and amplified by, propagating chemical waves triggered by previous inputs...
April 19, 2017: ELife
https://www.readbyqxmd.com/read/28421060/the-heme-metabolite-carbon-monoxide-facilitates-kshv-infection-by-inhibiting-tlr4-signaling-in-endothelial-cells
#18
Sara Botto, Jean K Gustin, Ashlee V Moses
Kaposi sarcoma herpesvirus (KSHV) is the etiologic agent of Kaposi sarcoma (KS) and certain rare B cell lymphoproliferative disorders. KSHV infection of endothelial cells (EC) in vitro increases expression of the inducible host-encoded enzyme heme oxygenase-1 (HO-1), which is also strongly expressed in KS tumors. HO-1 catalyzes the rate-limiting step in the conversion of heme into iron, biliverdin and the gasotransmitter carbon monoxide (CO), all of which share anti-apoptotic, anti-inflammatory, pro-survival, and tumorigenic activities...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28420735/correction-the-soluble-pattern-recognition-receptor-ptx3-links-humoral-innate-and-adaptive-immune-responses-by-helping-marginal-zone-b-cells
#19
Alejo Chorny, Sandra Casas-Recasens, Jordi Sintes, Meimei Shan, Nadia Polentarutti, Ramón García-Escudero, A Cooper Walland, John R Yeiser, Linda Cassis, Jorge Carrillo, Irene Puga, Cristina Cunha, Hélder Bastos, Fernando Rodrigues, João F Lacerda, António Morais, Rebeca Dieguez-Gonzalez, Peter S Heeger, Giovanni Salvatori, Agostinho Carvalho, Adolfo Garcia-Sastre, J Magarian Blander, Alberto Mantovani, Cecilia Garlanda, Andrea Cerutti
No abstract text is available yet for this article.
April 18, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28420135/a-prosthetic-hand-body-area-controller-based-on-efficient-pattern-recognition-control-strategies
#20
Simone Benatti, Bojan Milosevic, Elisabetta Farella, Emanuele Gruppioni, Luca Benini
Poliarticulated prosthetic hands represent a powerful tool to restore functionality and improve quality of life for upper limb amputees. Such devices offer, on the same wearable node, sensing and actuation capabilities, which are not equally supported by natural interaction and control strategies. The control in state-of-the-art solutions is still performed mainly through complex encoding of gestures in bursts of contractions of the residual forearm muscles, resulting in a non-intuitive Human-Machine Interface (HMI)...
April 15, 2017: Sensors
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