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https://www.readbyqxmd.com/read/28746351/modelling-saliency-attention-to-predict-eye-direction-by-topological-structure-and-earth-mover-s-distance
#1
Longsheng Wei, Jian Peng, Wei Liu, Xinmei Wang, Feng Liu
A saliency attention model for predicting eye direction is proposed in this paper. This work is inspired by the success of the topological structure and Earth Mover's Distance (EMD) approach. Firstly, we extract visual saliency features such as color contrast, intensity contrast, orientation, and texture. Then, we eliminate disconnected regions in the feature maps to keep topological structure. Secondly, we calculate center surround difference using across-scale EMD between different scales feature maps, rather than utilizing the Difference of Gaussian (DoG), which is used in many other saliency attention models...
2017: PloS One
https://www.readbyqxmd.com/read/28742107/analyzing-the-locomotory-gaitprint-of-caenorhabditis-elegans-on-the-basis-of-empirical-mode-decomposition
#2
Li-Chun Lin, Han-Sheng Chuang
The locomotory gait analysis of the microswimmer, Caenorhabditis elegans, is a commonly adopted approach for strain recognition and examination of phenotypic defects. Gait is also a visible behavioral expression of worms under external stimuli. This study developed an adaptive data analysis method based on empirical mode decomposition (EMD) to reveal the biological cues behind intricate motion. The method was used to classify the strains of worms according to their gaitprints (i.e., phenotypic traits of locomotion)...
2017: PloS One
https://www.readbyqxmd.com/read/28740869/comparing-sequencing-assays-and-human-machine-analyses-in-actionable-genomics-for-glioblastoma
#3
Kazimierz O Wrzeszczynski, Mayu O Frank, Takahiko Koyama, Kahn Rhrissorrakrai, Nicolas Robine, Filippo Utro, Anne-Katrin Emde, Bo-Juen Chen, Kanika Arora, Minita Shah, Vladimir Vacic, Raquel Norel, Erhan Bilal, Ewa A Bergmann, Julia L Moore Vogel, Jeffrey N Bruce, Andrew B Lassman, Peter Canoll, Christian Grommes, Steve Harvey, Laxmi Parida, Vanessa V Michelini, Michael C Zody, Vaidehi Jobanputra, Ajay K Royyuru, Robert B Darnell
OBJECTIVE: To analyze a glioblastoma tumor specimen with 3 different platforms and compare potentially actionable calls from each. METHODS: Tumor DNA was analyzed by a commercial targeted panel. In addition, tumor-normal DNA was analyzed by whole-genome sequencing (WGS) and tumor RNA was analyzed by RNA sequencing (RNA-seq). The WGS and RNA-seq data were analyzed by a team of bioinformaticians and cancer oncologists, and separately by IBM Watson Genomic Analytics (WGA), an automated system for prioritizing somatic variants and identifying drugs...
August 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28726993/genetic-parameters-for-wool-traits-live-weight-and-ultrasound-carcass-traits-in-merino-sheep
#4
S I Mortimer, S Hatcher, N M Fogarty, J H J van der Werf, D J Brown, A A Swan, J C Greeff, G Refshauge, J E Hocking Edwards, G M Gaunt
Genetic correlations between 29 wool production and quality traits and live weight and ultrasound fat depth (FAT) and eye muscle depth (EMD) traits were estimated from the Information Nucleus (IN). The IN comprised 8 genetically linked flocks managed across a range of Australian sheep production environments. The data were from a maximum of 9,135 progeny born over 5 yr from 184 Merino sires and 4,614 Merino dams. The wool traits included records for yearling and adult fleece weight, fiber diameter (FD), staple length (SL), fiber diameter CV (FDCV), scoured color, and visual scores for breech and body wrinkle...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28719805/seizure-detection-from-eeg-signals-using-multivariate-empirical-mode-decomposition
#5
Asmat Zahra, Nadia Kanwal, Naveed Ur Rehman, Shoaib Ehsan, Klaus D McDonald-Maier
We present a data driven approach to classify ictal (epileptic seizure) and non-ictal EEG signals using the multivariate empirical mode decomposition (MEMD) algorithm. MEMD is a multivariate extension of empirical mode decomposition (EMD), which is an established method to perform the decomposition and time-frequency (T-F) analysis of non-stationary data sets. We select suitable feature sets based on the multiscale T-F representation of the EEG data via MEMD for the classification purposes. The classification is achieved using the artificial neural networks...
July 8, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28703038/rehabilitation-interventions-to-modify-endocrine-metabolic-disease-risk-in-individuals-with-chronic-spinal-cord-injury-living-in-the-community-riisc-a-systematic-review-and-scoping-perspective
#6
Jenna C Gibbs, Dany H Gagnon, Austin J Bergquist, Jasmine Arel, Tomas Cervinka, Rasha El-Kotob, Désirée B Maltais, Dalton L Wolfe, B Catharine Craven
Context Endocrine-metabolic disease (EMD) risk following spinal cord injury (SCI) is associated with significant multi-morbidity (i.e. fracture, diabetes, heart disease), mortality, and economic burden. It is unclear to what extent rehabilitation interventions can modify EMD risk and improve health status in community-dwelling adults with chronic SCI. Objectives To characterize rehabilitation interventions and summarize evidence on their efficacy/effectiveness to modify precursors to EMD risk in community-dwelling adults with chronic SCI...
July 13, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28695450/biofunctionalization-of-porcine-derived-collagen-matrix-using-enamel-matrix-derivative-and-platelet-rich-fibrin-influence-on-mature-endothelial-cell-characteristics-in-vitro
#7
Jung Soo Park, Andreas Max Pabst, Maximilian Ackermann, Maximilian Moergel, Junho Jung, Adrian Kasaj
OBJECTIVES: The present study evaluated the effect of an enamel matrix derivative (EMD) and platelet-rich fibrin (PRF)-modified porcine-derived collagen matrix (PDCM) on human umbilical vein endothelial cells (HUVEC) in vitro. MATERIALS AND METHODS: PDCM (mucoderm®) was prepared to 6 mm (±0.1 mm) diameter discs. PDCM samples were incubated with either EMD, PRF, or control solutions for 100 min at 4 °C before the experiments. Cell-inducing properties of test materials on HUVEC cells were tested with cell proliferation assays (MTT, PrestoBlue®), a cytotoxicity assay (ToxiLight®), a Boyden chamber migration assay, and a cell attachment assay...
July 11, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28693018/el-efecto-de-la-panfotocoagulaci%C3%A3-n-con-l%C3%A3-ser-en-edema-macular-diab%C3%A3-tico-con-el-fotocoagulador-pascal%C3%A2-versus-el-l%C3%A3-ser-de-arg%C3%A3-n-convencional
#8
Mohamed M Mahgoub, Tamer A Macky
Objetivo: El objetivo de este estudio fue comparar el efecto de la panfotocoagulación (PFC) en el edema macular diabético (EMD) en pacientes con retinopatía diabética proliferativa (RDP) con el fotocoagulador Pascal® (FP) vs. un fotocoagulador con láser de argón convencional (FLAC). Métodos: Se aleatorizó el uso de FP o FLAC en ochenta ojos con RDP y EMD con afectación central de la mácula. Ambos grupos tuvieron una evaluación de base de mejor agudeza visual corregida y fueron examinados con tomografía de coherencia óptica y angiografía con fluoresceína...
July 11, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28693011/comparaci%C3%A3-n-de-la-efectividad-de-ranibizumab-intrav%C3%A3-treo-para-el-tratamiento-del-edema-macular-diab%C3%A3-tico-en-ojos-vitrectomizados-y-no-vitrectomizados
#9
Yoshito Koyanagi, Shigeo Yoshida, Yoshiyuki Kobayashi, Yuki Kubo, Muneo Yamaguchi, Takahito Nakama, Shintaro Nakao, Yasuhiro Ikeda, Yuji Ohshima, Tatsuro Ishibashi, Kohhei Sonoda
Objetivo: Comparar la efectividad de ranibizumab intravítreo (RIV) para el tratamiento del edema macular diabético (EMD) en ojos con y sin vitrectomía previa. Procedimientos: Evaluamos de manera prospectiva la mejor agudeza visual corregida (MAVC) y el grosor macular central (GMC) tras el tratamiento con RIV durante 6 meses. Resultados: No se observaron diferencias significativas en la MAVC o GMC inicial en ninguno de los dos grupos. En el grupo no vitrectomizado (n = 15), los cambios medios en la MAVC y GMC hasta el sexto mes de tratamiento con respecto al valor inicial resultaron significativos (p < 0,01)...
July 11, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28683765/periodontal-regenerative-therapy-with-enamel-matrix-derivative-in-the-treatment-of-intrabony-defects-a-prospective-2-year-study
#10
Fumi Seshima, Hideto Aoki, Takahiro Takeuchi, Eiichi Suzuki, Daisuke Irokawa, Asako Makino-Oi, Hiroki Sugito, Sachiyo Tomita, Atsushi Saito
OBJECTIVE: To date, enamel matrix derivative (EMD) has been considered to be one of the few biomaterials for clinical use capable of demonstrating true periodontal regeneration. The aim of this two-center prospective clinical study was to evaluate 2-year outcome of periodontal regenerative therapy using EMD in the treatment of intrabony defects, performed as an 'advanced medical treatment' under the national healthcare system in Japan. RESULTS: Patients with chronic periodontitis who have completed initial periodontal therapy at either of the two dental school clinics were enrolled...
July 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28680671/on-the-occurrence-of-three-non-native-cichlid-species-including-the-first-record-of-a-feral-population-of-pelmatolapia-tilapia-mariae-boulenger-1899-in-europe
#11
Juliane A Y Lukas, Jonas Jourdan, Gregor Kalinkat, Sebastian Emde, Friedrich Wilhelm Miesen, Hannah Jüngling, Berardino Cocchiararo, David Bierbach
Thermally influenced freshwater systems provide suitable conditions for non-native species of tropical and subtropical origin to survive and form proliferating populations beyond their native ranges. In Germany, non-native convict cichlids (Amatitlania nigrofasciata) and tilapia (Oreochromis sp.) have established populations in the Gillbach, a small stream that receives warm water discharge from a local power plant. Here, we report on the discovery of spotted tilapia (Pelmatolapia mariae) in the Gillbach, the first record of a reproducing population of this species in Europe...
June 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28661784/identifying-key-words-in-9-1-1-calls-for-stroke-a-mixed-methods-approach
#12
Christopher T Richards, Baiyang Wang, Eddie Markul, Frank Albarran, Doreen Rottman, Neelum T Aggarwal, Patricia Lindeman, Leslee Stein-Spencer, Joseph M Weber, Kenneth S Pearlman, Katie L Tataris, Jane L Holl, Diego Klabjan, Shyam Prabhakaran
OBJECTIVES: Identifying stroke during a 9-1-1 call is critical to timely prehospital care. However, emergency medical dispatchers (EMDs) recognize stroke in less than half of 9-1-1 calls, potentially due to the words used by callers to communicate stroke signs and symptoms. We hypothesized that callers do not typically use words and phrases considered to be classical descriptors of stroke, such as focal neurologic deficits, but that a mixed-methods approach can identify words and phrases commonly used by 9-1-1 callers to describe acute stroke victims...
June 29, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28659308/estimation-of-distance-and-electric-impedance-of-capacitive-objects-in-the-weakly-electric-fish-gnathonemus-petersii
#13
Martin Gottwald, Raya A Bott, Gerhard von der Emde
During active electrolocation the weakly electric fish Gnathonemus petersii judges distance and impedance of nearby objects. Capacitive objects, which modulate local amplitude and waveform of the fish's electric probing signals, cast amplitude- and waveform images onto the fish's electroreceptive skin. For an unambiguous estimation of the impedance and distance of an object, the animal has to deal with multiple dependencies of object- and image parameters. Based on experimentally recorded amplitude and waveform images we investigated possible strategies of the fish to unequivocally determine both the distance and the impedance of capacitive objects...
June 28, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28650249/inpatient-admissions-and-costs-associated-with-persistent-use-of-dalfampridine-extended-release-in-multiple-sclerosis-a-claims-database-analysis
#14
Amy Guo, Alexander Niyazov, Dendy Macaulay, Emi Terasawa, Luke Schmerold, Eric Q Wu, Stephen Krieger
BACKGROUND: While the clinical benefits of dalfampridine extended-release (D-ER) have been established in patients with multiple sclerosis (MS) through multiple clinical trials, there is limited real-world data on D-ER use, in particular the persistent use of D-ER, and associated acute care resource utilization and costs. OBJECTIVE: To examine the real-world association of D-ER use and inpatient admissions and costs among patients with MS. METHODS: This study was a retrospective observational claims analysis of the MarketScan database (April 2009-March 2014)...
July 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28650246/economic-outcomes-of-first-line-regimen-switching-among-stable-patients-with-hiv
#15
Lisa Rosenblatt, Ami R Buikema, Jerry Seare, Lindsay G S Bengtson, Jonathan Johnson, Feng Cao, Angelina Villasis-Keever
BACKGROUND: Although switching of antiretroviral therapy (ART) is a valid approach for addressing treatment failure in patients with human immunodeficiency virus (HIV), ART changes among those who are well maintained on their current regimens may lead to the development of new side effects or resistance. OBJECTIVE: To examine the effect of first-line regimen switching on subsequent health care utilization and cost among stable HIV patients. METHODS: This was a retrospective claims data study of adult patients with HIV who initiated ART between 2007 and 2013 and had been treated with their initial regimens for at least 6 continuous months...
July 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28632534/administration-of-tetrahydrobiopterin-bh4-protects-the-renal-microcirculation-from-ischemia-and-reperfusion-injury
#16
Lokmane Rahmania, Diego Orbegozo, Fuhong Su, Fabio Silvio Taccone, Jean-Louis Vincent, Daniel De Backer
BACKGROUND: Abdominal aortic aneurysm surgery with suprarenal cross-clamping is often associated with renal injury. Although the mechanism underlying such injury is unclear, tissue ischemia and reperfusion, which induces endothelial dysfunction and decreases the availability of tetrahydrobiopterin (BH4), may play a role. We evaluated whether BH4 administration prevents renal ischemia/reperfusion injury in an animal model of aortic cross-clamping. METHODS: Nineteen anesthetized, mechanically ventilated, and invasively monitored adult sheep were randomized into 3 groups: sham animals (n = 5) that underwent surgical preparation but no aortic clamping; an ischemia/reperfusion group (n = 7), where the aorta was clamped above the renal arteries for 1 hour, and a BH4 group (n = 7), in which animals received 20 mg/kg of BH4 followed by aortic cross-clamp for 1 hour...
June 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28624712/classification-of-ecg-heartbeats-using-nonlinear-decomposition-methods-and-support-vector-machine
#17
Kandala N V P S Rajesh, Ravindra Dhuli
Classifying electrocardiogram (ECG) heartbeats for arrhythmic risk prediction is a challenging task due to minute variations in the amplitude, duration and morphology of the ECG signal. In this paper, we propose two feature extraction approaches to classify five types of heartbeats: normal, premature ventricular contraction, atrial premature contraction, left bundle branch block and right bundle branch block. In the first approach, ECG beats are decomposed into intrinsic mode functions (IMFs) using ensemble empirical mode decomposition (EEMD)...
June 15, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28609503/the-effect-of-enamel-matrix-derivative-alone-versus-in-combination-with-alloplastic-materials-to-treat-intrabony-defects-a-meta-analysis
#18
Yang Liu, Bo Hu, Jingli Zhou, Wenyang Li, Qin Liu, Jinlin Song
This meta-analysis aims to compare the effect of the application of enamel matrix derivative (EMD) used alone with that of its use in combination with alloplastic materials in the treatment of periodontal intrabony defects. Relevant studies were retrieved from PubMed, the Cochrane Library, and Embase through November 2015. The main clinical outcomes were pocket probing depth (PPD) reduction, clinical attachment level (CAL) gain, gingival recession (REC) increase, and defect fill gain. Two separate meta-analyses were performed according to the length of follow-up...
July 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28603465/spinal-cord-as-an-adjunct-to-brain-magnetic-resonance-imaging-in-defining-no-evidence-of-disease-activity-in-multiple-sclerosis
#19
Subhash Tummala, Tarun Singhal, Vinit V Oommen, Gloria Kim, Fariha Khalid, Brian C Healy, Rohit Bakshi
Background: Monitoring patients with multiple sclerosis (MS) for “no evidence of disease activity” (NEDA) may help guide disease-modifying therapy (DMT) management decisions. Whereas surveillance brain magnetic resonance imaging (MRI) is common, the role of spinal cord monitoring for NEDA is unknown. Objective: To evaluate the role of brain and spinal cord 3T MRI in the 1-year evaluation of NEDA. Methods: Of 61 study patients (3 clinically isolated syndrome, 56 relapsing-remitting, 2 secondary progressive), 56 (91...
May 2017: International Journal of MS Care
https://www.readbyqxmd.com/read/28598248/enamel-matrix-derivative-enhances-the-proliferation-and-osteogenic-differentiation-of-human-periodontal-ligament-stem-cells-on-the-titanium-implant-surface
#20
Guang Li, Jing Hu, Hui Chen, Liang Chen, Na Zhang, Lisheng Zhao, Ning Wen, Yongjin Yang
Periodontal ligament stem cells (PDLSCs) have mesenchymal-stem-cells-like qualities, and are considered as one of the candidates of future clinical application in periodontal regeneration therapy. Enamel matrix derivative (EMD) is widely used in promoting periodontal regeneration. However, the effects of EMD on the proliferation and osteogenic differentiation of human PDLSCs grown on the Ti implant surface are still no clear. Therefore, this study examined the effects of EMD on human PDLSCs in vitro. Human PDLSCs were isolated from healthy participants, and seeded on the surface of Ti implant disks and stimulated with various concentrations of EMD...
June 9, 2017: Organogenesis
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