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dynamic index

Linda Drijvers, Asli Özyürek, Ole Jensen
Previous work revealed that visual semantic information conveyed by gestures can enhance degraded speech comprehension, but the mechanisms underlying these integration processes under adverse listening conditions remain poorly understood. We used MEG to investigate how oscillatory dynamics support speech-gesture integration when integration load is manipulated by auditory (e.g., speech degradation) and visual semantic (e.g., gesture congruency) factors. Participants were presented with videos of an actress uttering an action verb in clear or degraded speech, accompanied by a matching (mixing gesture + "mixing") or mismatching (drinking gesture + "walking") gesture...
June 19, 2018: Journal of Cognitive Neuroscience
Viktor R Tóth
Littoral zones of freshwater lakes are exposed to environmental impacts from both terrestrial and aquatic sides, while substantial anthropogenic pressure also affects the high spatial, and temporal variability of the ecotone. In this study, the possibility of monitoring seasonal and spatial changes in reed ( Phragmites australis ) stands using an unmanned aerial vehicle (UAV) based remote sensing technique was examined. Stands in eutrophic and mesotrophic parts of Lake Balaton including not deteriorating (stable) and deteriorating (die-back) patches, were tracked throughout the growing season using a UAV equipped with a Normalized Difference Vegetation Index (NDVI) camera...
2018: Frontiers in Plant Science
Fayssal Bouchemla, Valerey Alexandrovich Agoltsov, Olga Mikhailovna Popova, Larisa Pavlovna Padilo
Aim: This study focuses on the spatial dynamic associated with the spreading of the peste des petits ruminants (PPR) disease for the past decade (from the year 2007 to 2017), assesses the resulting situation in the world, and has an emphasis on Russian advantages been a PPR host. Materials and Methods: Outbreaks were confirmed and reported officially by the World Organization for Animal Health (enzyme-linked immunosorbent assay and polymerase chain reaction were used)...
May 2018: Veterinary World
Lung-Yi Mak, Danny Ka-Ho Wong, Ka-Shing Cheung, Wai-Kay Seto, Ching-Lung Lai, Man-Fung Yuen
BACKGROUND: Mac-2-binding protein glycosylation isomer (M2BPGi), a novel serum marker for liver fibrosis, was seldom studied in chronic hepatitis B (CHB). We aimed to evaluate its role on diagnosing significant fibrosis and cirrhosis in treated CHB patients. METHODS: CHB patients treated with nucleos(t)ide analogues (NAs) with baseline liver biopsies and retrievable serum samples were recruited. Paired liver biopsies were performed in patient subgroups at 1 and 3 years...
June 19, 2018: Clinical and Translational Gastroenterology
Melissa E Middeldorp, Rajeev K Pathak, Megan Meredith, Abhinav B Mehta, Adrian D Elliott, Rajiv Mahajan, Darragh Twomey, Celine Gallagher, Jeroen M L Hendriks, Dominik Linz, R Doug McEvoy, Walter P Abhayaratna, Jonathan M Kalman, Dennis H Lau, Prashanthan Sanders
Aims: Atrial fibrillation (AF) is a progressive disease. Obesity is associated with progression of AF. This study evaluates the impact of weight and risk factor management (RFM) on progression of the AF. Methods and results: As described in the Long-Term Effect of Goal-Directed Weight Management in an Atrial Fibrillation Cohort: A Long-Term Follow-Up (LEGACY) Study, of 1415 consecutive AF patients, 825 had body mass index ≥ 27 kg/m2 and were offered weight and RFM...
June 14, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Maggie A Middleton, Mehdi Layeghifard, Michelle Klingel, Sanja Stanojevic, Yvonne C W Yau, James E A Zlosnik, Adele Coriati, Felix A Ratjen, Elizabeth D Tullis, Anne Stephenson, Pearce Wilcox, Andreas Freitag, Mark Chilvers, Martha McKinney, Annick Lavoie, Pauline W Wang, David S Guttman, Valerie J Waters
RATIONALE: The extent of the genetic relatedness among Pseudomonas aeruginosa isolates and its impact on clinical outcomes in the cystic fibrosis (CF) population is poorly understood. OBJECTIVES: The objectives of this study were to determine the prevalence of clonal P. aeruginosa infection in Canada and to associate P. aeruginosa genotypes with clinical outcomes. METHODS: This was an observational study of adult and pediatric CF patients across Canada...
June 18, 2018: Annals of the American Thoracic Society
John J McMahon, Paul A Jones, Thomas Dos'Santos, Paul Comfort
The dynamic strength index (DSI), often calculated as the ratio of countermovement jump (CMJ) propulsion peak force to isometric mid-thigh pull (IMTP) peak force, is said to inform whether ballistic or maximal strength training is warranted for a given athlete. CMJ propulsion peak force is highly influenced by jump strategy, however, which is not highlighted by the DSI alone. This study aimed to quantitatively compare CMJ force-, power-, velocity-, and displacement-time curves between athletes who achieved high versus low DSI scores...
September 23, 2017: Sports
Christopher Thomas, Thomas Dos'Santos, Paul A Jones
The purpose of this study was to examine the differences in countermovement jump peak force (CMJ-PF), isometric mid-thigh pull peak force (IMTP-PF), and resultant dynamic strength index (DSI) values between team-sport athletes. One hundred and fifteen male and female team-sport athletes performed the CMJ and IMTP to determine peak force (CMJ-PF and IMTP-PF, respectively). Statistically and practically significant differences ( p ≤ 0.050; d = 0.49⁻1.32) in CMJ-PF were evident between teams. Specifically, the greatest CMJ-PFs were produced by the male cricket players and were followed in order by the male basketball, male soccer, female netball, female cricket, and female soccer players...
September 20, 2017: Sports
Thomas Dos'Santos, Christopher Thomas, Paul Comfort, John J McMahon, Paul A Jones
The purpose of this study was to explore the relationships between isometric mid-thigh pull (IMTP) force-time characteristics (peak force and time-specific force vales (100⁻250 ms)) and dynamic performance and compare dynamic performance between stronger and weaker athletes. Forty-three athletes from different sports (rowing, soccer, bicycle motocross, and hockey) performed three trials of the squat jump (SJ), countermovement jump (CMJ), and IMTP, and performed a one repetition maximum power clean (PC). Reactive strength index modified (RSImod) was also calculated from the CMJ...
September 13, 2017: Sports
Joanna Parsonage, Josh Secomb, Rebecca Dowse, Brendon Ferrier, Jeremy Sheppard, Sophia Nimphius
The primary purpose of this study was to investigate gender differences in the dynamic strength index (DSI): an assessment of upper-body dynamic strength relative to maximal isometric strength. The secondary purpose was to investigate gender differences in the dynamic skill deficit (DSD): an assessment of sports-specific dynamic strength relative to maximal isometric strength, and its association with a sports-specific performance measure in surfers. Nine male (age = 30.3 ± 7.3 yrs) and eight female (age = 25...
June 5, 2018: Sports
Pablo Kogan, Jorge P Arenas, Fernando Bermejo, María Hinalaf, Bruno Turra
Urban soundscapes are dynamic and complex multivariable environmental systems. Soundscapes can be organized into three main entities containing the multiple variables: Experienced Environment (EE), Acoustic Environment (AE), and Extra-Acoustic Environment (XE). This work applies a multidimensional and synchronic data-collecting methodology at eight urban environments in the city of Córdoba, Argentina. The EE was assessed by means of surveys, the AE by acoustic measurements and audio recordings, and the XE by photos, video, and complementary sources...
June 13, 2018: Science of the Total Environment
Hai-Bo Ding, Kai-Xiong Liu, Jie-Feng Huang, Da-Wen Wu, Jun-Ying Chen, Qing-Shi Chen
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a multicomponent disorder characterized by inflammation, representing a significant leading cause of chronic morbidity and mortality. Reports have implicated hydrogen sulfide (H2 S) in both the pathology and treatment of COPD. The present study aimed to explore the effects involved with exogenous H2 S on endoplasmic reticulum stress (ERS) and pulmonary artery endothelial cells (PAECs) in a rat model of COPD. METHODS: Rat models of COPD were successfully established by means of passive smoke exposure and intratracheal injection with lipopolysaccharide (LPS)...
June 13, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Seungwoo Shin, Doyeon Kim, Kyoohyun Kim, YongKeun Park
We present a multimodal approach for measuring the three-dimensional (3D) refractive index (RI) and fluorescence distributions of live cells by combining optical diffraction tomography (ODT) and 3D structured illumination microscopy (SIM). A digital micromirror device is utilized to generate structured illumination patterns for both ODT and SIM, which enables fast and stable measurements. To verify its feasibility and applicability, the proposed method is used to measure the 3D RI distribution and 3D fluorescence image of various samples, including a cluster of fluorescent beads, and the time-lapse 3D RI dynamics of fluorescent beads inside a HeLa cell, from which the trajectory of the beads in the HeLa cell is analyzed using spatiotemporal correlations...
June 15, 2018: Scientific Reports
Geon Kim, Moosung Lee, SeongYeon Youn, EuiTae Lee, Daeheon Kwon, Jonghun Shin, SangYun Lee, Youn Sil Lee, YongKeun Park
Unlike mammalian erythrocytes, amphibian erythrocytes have distinct morphological features including large cell sizes and the presence of nuclei. The sizes of the cytoplasm and nuclei of erythrocytes vary significantly over different species, their environments, or pathophysiology, which makes hematological studies important for investigating amphibian species. Here, we present a label-free three-dimensional optical quantification of individual amphibian erythrocytes from frogs Pelophylax nigromaculatus (Rana nigromaculata)...
June 15, 2018: Scientific Reports
Randy W Loftus, Franklin Dexter, Alysha D M Robinson
BACKGROUND: Increased awareness of the epidemiology of transmission of pathogenic bacterial strain characteristics may help to improve compliance with intraoperative infection control measures. Our aim was to characterize the epidemiology of intraoperative transmission of high-risk Staphylococcus aureus sequence types (STs). METHODS: S aureus isolates collected from 3 academic medical centers underwent whole cell genome analysis, analytical profile indexing, and biofilm absorbance...
June 12, 2018: American Journal of Infection Control
Kenneth I Golden
A recent approach that led to compact frequency domain formulations of the cubic and quartic fluctuation-dissipation theorems (FDTs) for the classical one-component plasma (OCP) [Golden and Heath, J. Stat. Phys. 162, 199 (2016)10.1007/s10955-015-1395-6] is generalized to accommodate binary ionic mixtures. Paralleling the procedure followed for the OCP, the basic premise underlying the present approach is that a (k,ω) 4-vector rotational symmetry, known to be a pivotal feature in the frequency domain architectures of the linear and quadratic fluctuation-dissipation relations for a variety of Coulomb plasmas [Golden et al...
May 2018: Physical Review. E
Hugo F Posada-Quintero, Jeffrey B Bolkhovsky, Michael Qin, Ki H Chon
OBJECTIVE: The aim was to determine if indices of the autonomic nervous system (ANS), derived from the electrodermal activity (EDA) and electrocardiogram (ECG), could be used to detect deterioration in human cognitive performance on healthy participants during 24-hour sleep deprivation. BACKGROUND: The ANS is highly sensitive to sleep deprivation. METHODS: Twenty-five participants performed a desktop-computer-based version of the psychomotor vigilance task (PVT) every 2 hours...
June 1, 2018: Human Factors
Juan Cui, Shi-Yu Zhu, Rui Bi, Wei Xu, Yu Gao, Shu-Sen Shi
Heliothis viriplaca (Hüfnagel) (Lepidoptera: Noctuidae) is worldwide an important economic pest of major agricultural crops. The effect of temperature on the biology, in particular the duration of the different developmental stages, of this insect pest was examined. The development, survival, and fecundity of H. viriplaca at five different temperatures (22, 25, 28, 31, and 34°C) were investigated, and experimental population life tables calculated. The results show that the developmental time of larvae, pupae, pre-oviposition, adults, and the entire generation decreases with increasing temperature...
June 14, 2018: Journal of Economic Entomology
Jonas Coussement, Michael Henke, Peter Lootens, Isabel Roldán-Ruiz, Kathy Steppe, Tom De Swaef
Background and Aims: Currently, functional-structural plant models (FSPMs) mostly resort to static descriptions of leaf spectral characteristics, which disregard the influence of leaf physiological changes over time. In many crop species, including soybean, these time-dependent physiological changes are of particular importance as leaf chlorophyll content changes with leaf age and vegetative nitrogen is remobilized to the developing fruit during pod filling. Methods: PROSPECT, a model developed to estimate leaf biochemical composition from remote sensing data, is well suited to allow a dynamic approximation of leaf spectral characteristics in terms of leaf composition...
June 14, 2018: Annals of Botany
Matthias P L Sentis, Fabrice R A Onofri, Fabrice Lamadie
The image of the photonic jet (also called caustic) formed by a large, transparent, and spherical particle, reconstructed by digital in-line holography, is shown to be similar to the Airy pattern observed at the focus of a diffraction-limited lens. The analysis of this image, real or virtual depending on whether the particle relative refractive index is above or below one, allows characterizing the particle composition via its refractive index. Experiments clearly demonstrate the value of this method for the simultaneous 3D characterization and differentiation of the dynamics, size, and composition of gas, liquid, and solid particles in multiphase flows...
June 15, 2018: Optics Letters
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