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Sonia Alguacil, Eduardo Madrid, Antonio M Espín, María Ruz
Two sources of information most relevant to guide social decision making are the cooperative tendencies associated with different people and their facial emotional displays. This electrophysiological experiment aimed to study how the use of personal identity and emotional expressions as cues impacts different stages of face processing and their potential isolated or interactive processing. Participants played a modified trust game with 8 different alleged partners, and in separate blocks either the identity or the emotions carried information regarding potential trial outcomes (win or loss)...
November 30, 2016: Cognitive, Affective & Behavioral Neuroscience
Meng Ni, Joseph F Signorile
Muscle power is a major neuromuscular factor affecting motor function and independence in patients with Parkinson's disease; and it is commonly targeted using high-speed exercise. This study examined the changes in velocities (Vpp) and percent loads (%1RMpp) at peak power, as well as load-velocity (L-V) and load-power (L-P) relationships, resulting from resistance training due to exercise choice and loading in older Parkinson's patients. Fourteen older adults with mild to moderate Parkinson's disease participated in a 12-week randomized controlled power training trial...
November 16, 2016: Journal of Strength and Conditioning Research
J Greig Inglis, Kyle McIntosh, David A Gabriel
OBJECTIVE: Recent research has reported that lower maximal rate of torque development (dτ/dt max) exhibited by females, relative to males, during knee extension can be accounted for by normalization to a maximal voluntary contraction (MVC); however, this was not seen in the upper limb. PURPOSE: The aim of the current work was to examine the contribution of maximum strength (τmax), twitch contraction time (CT), muscle fiber condition velocity (MFCV), and rate of muscle activation (Q30) to sex-differences in the dτ/dt max during maximal isometric dorsiflexion...
November 4, 2016: European Journal of Applied Physiology
Katharina Ohmann, Jutta Stahl, Thomas Mussweiler, Gayannée Kedia
A wide array of social decisions relies on social comparisons. As such, these decisions require fast access to relative information. Therefore, we expect that signatures of the comparative process should be observable in electrophysiological components at an early stage of information processing. However, to date, little is known about the neural time course of social target comparisons. Therefore, we tested this hypothesis in 2 electroencephalography (EEG) studies using a social distance effect paradigm. The distance effect capitalizes on the fact that stimuli close on a certain dimension take longer to compare than stimuli clearly differing on this dimension...
November 2016: Journal of Experimental Psychology. General
Giuseppina Sefora Rutella, Lisa Solieri, Serena Martini, Davide Tagliazucchi
The aim of this study was to identify and quantify the release of antihypertensive tripeptides valine-proline-proline (VPP) and isoleucine-proline-proline (IPP) during in vitro oro-gastro-intestinal (OGI) digestion of bovine skimmed milk. The experimental approach combined the recently developed harmonized static in vitro digestion (IVD) model and targeted mass spectrometry in order to monitor peptide generation. We firstly demonstrated that VPP and IPP are released from bovine milk proteins during in vitro OGI digestion at final concentrations of 354...
October 28, 2016: Journal of Agricultural and Food Chemistry
Mehran Peyvasteh, Shahnam Askarpour, Nasrollah Ostadian, Mohammad-Reza Moghimi, Hazhir Javaherizadeh
Background: Hirschsprung's disease is the most common cause of pediatric intestinal obstruction. Contrast enema is used for evaluation of the patients with its diagnosis. Aim: To evaluate sensitivity, specificity, positive predictive value, and negative predictive value of radiologic findings for diagnosis of Hirschsprung in patients underwent barium enema. Methods: This cross sectional study was carried out in Imam Khomeini Hospital for one year starting from 2012, April...
July 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
Alexander von Luhmann, Heidrun Wabnitz, Tilmann Sander, Klaus-Robert Muller
OBJECTIVE: For the further development of the fields of telemedicine, neurotechnology and Brain-Computer Interfaces (BCI), advances in hybrid multimodal signal acquisition and processing technology are invaluable. Currently, there are no commonly available hybrid devices combining bio-electrical and bio-optical neurophysiological measurements (here Electroencephalography (EEG) and functional Near Infrared Spectroscopy (fNIRS)). Our objective was the design of such an instrument, and that in a miniaturized, customizable and wireless form...
September 9, 2016: IEEE Transactions on Bio-medical Engineering
J E Nobles, V Zagorodnii, A Hutchison, Z Celinski
We report the development of a test setup designed to provide a variable frequency biasing signal to a vector network analyzer (VNA). The test setup is currently used for the testing of liquid crystal (LC) based devices in the microwave region. The use of an AC bias for LC based devices minimizes the negative effects associated with ionic impurities in the media encountered with DC biasing. The test setup utilizes bias tees on the VNA test station to inject the bias signal. The square wave biasing signal is variable from 0...
August 2016: Review of Scientific Instruments
Karthiyaini Damodharan, Sasikumar Arunachalam Palaniyandi, Seung Hwan Yang, Joo-Won Suh
We characterized the probiotic properties of Lactobacillus helveticus strains KII13 and KHI1 isolated from fermented cow milk by in vitro and in vivo studies. The strains exhibited tolerance to simulated oro-gastrointestinal (OGT) condition, adherence to Caco-2 cells, and antimicrobial activity. Both the L. helveticus strains produced bioactive tripeptides isoleucyl-prolyl-proline (IPP) and valyl-prolyl-proline (VPP) during fermentation of milk. KII13 showed higher in vitro cholesterol-lowering activity (47%) compared to KHI1 (28%) and L...
July 19, 2016: Journal of Microbiology and Biotechnology
Shiro Miyayama, Masashi Yamashiro, Keiichi Nagai, Akira Yokka, Miki Yoshida, Naoko Sakuragawa
AIM: To evaluate the performance of novel virtual parenchymal perfusion (VPP) software in conventional transcatheter arterial chemoembolization (cTACE) for hepatocellular carcinoma (HCC). METHODS: VPP was retrospectively applied to 43 HCCs treated with cTACE. The virtual embolized area (VEA) was estimated after positioning a virtual injection point on images of non-selective cone-beam computed tomography during hepatic arteriography (CBCTHA), at the same position in superselective cTACE...
June 28, 2016: Hepatology Research: the Official Journal of the Japan Society of Hepatology
Jun Li, Cangran Guo, Zhongshuai Wang, Kai Gao, Xudong Shi, Jing Liu
BACKGROUND: We proposed a method of using electrical stimulation for treatment of malignant melanoma through directly spray-printing liquid metal on skin as soft electrodes to deliver low intensity, intermediate frequency electric fields. METHODS: With patterned conductive liquid metal components on mice skin and under assistance of a signal generator, a sine wave electrical power with voltage of 5 V and 300 kHz could be administrated on treating malignant melanoma tumor...
December 2016: Clinical and Translational Medicine
Christoffer Karlsson, James Nicholas, Drew Evans, Maria Forsyth, Maria Strømme, Martin Sjödin, Patrick C Howlett, Cristina Pozo-Gonzalo
Liquid-solution polymerization and vapor-phase polymerization (VPP) have been used to manufacture a series of chloride- and tosylate-doped poly(3,4-ethylenedioxythiophene) (PEDOT) carbon paper electrodes. The electrochemistry, specific capacitance, and specific charge were determined for single electrodes in 1-ethyl-3-methylimidazolium dicyanamide (emim dca) ionic liquid electrolyte. VPP-PEDOT exhibits outstanding properties with a specific capacitance higher than 300 F g(-1) , the highest value reported for a PEDOT-based conducting polymer, and doping levels as high as 0...
August 23, 2016: ChemSusChem
Lien-Kai Chang, Mi-Ching Tsai
Most screw-thread-type ultrasonic motors are designed to be two-phase driven. This paper aims to present a novel single phase driven design that generates the required wobble motion, thus significantly simplifying the driving circuit of the ultrasonic motor. The proposed single-phase driven screw-thread-type ultrasonic motor works with two orthogonal bending modes generated by an asymmetric stator design. The novel stator design can improve the vibration displacement and further enhance the performance of the single phase driven motor...
May 2016: Review of Scientific Instruments
Maryam Khoshouei, Stefan Pfeffer, Wolfgang Baumeister, Friedrich Förster, Radostin Danev
Cryo-electron tomography (CET) and subtomogram analysis allow studying the structures of macromolecular complexes in their natural context. The radiation sensitivity of vitrified biological specimens and the resulting low signal-to-noise ratio (SNR) in CET limit the amount of structural information that can be mined from tomographic data. The Volta phase plate (VPP) has emerged as an effective means to increase the SNR and hence contrast compared to 'conventional' defocus-based phase contrast transmission electron microscopy (CTEM)...
May 25, 2016: Journal of Structural Biology
Petr Chlanda, Elena Mekhedov, Hang Waters, Cindi L Schwartz, Elizabeth R Fischer, Rolf J Ryham, Fredric S Cohen, Paul S Blank, Joshua Zimmerberg
Influenza A virus hemagglutinin (HA) changes conformation and drives membrane fusion of viral and endosomal membrane at low pH. Membrane fusion proceeds through an intermediate called hemifusion(1,2). For viral fusion the hemifusion structures are not determined(3). Here, influenza virus-like particles (VLP)(4) carrying wild-type (WT) HA or HA hemifusion mutant G1S(5) and liposome mixtures were studied at low pH by Volta phase plate (VPP) cryo-electron tomography (cET) which improves signal-to-noise ratio close to focus...
2016: Nature Microbiology
Raúl Menor Almagro, Juan Francisco Rodríguez Gutiérrez, María Auxiliadora Martín-Martínez, María José Rodríguez Valls, Concepción Aranda Valera, José Luís de la Iglesia Salgado
OBJECTIVE: To determine the dilution titles at antinuclear antibodies (ANA) by indirect immunofluorescence observed in cell substrate HEp-2 and its association with the diagnosis of systemic connective tissue disease in ANA test requested by a Rheumatology Unit. METHOD: Samples of patients attended for the first time in the rheumatology unit, without prior ANA test, between January 2010 and December 2012 were selected. The dilution titers, immunofluorescence patterns and antigen specificity were recorded...
May 21, 2016: Reumatología Clinica
Alice M Proverbio, Jessica Galli
Event-related potentials (ERPs) were recorded in 26 right-handed students while they detected pictures of animals intermixed with those of familiar objects, faces and faces-in-things (FITs). The face-specific N170 ERP component over the right hemisphere was larger in response to faces and FITs than to objects. The vertex positive potential (VPP) showed a difference in FIT encoding processes between males and females at frontal sites; while for men, the FIT stimuli elicited a VPP of intermediate amplitude (between that for faces and objects), for women, there was no difference in VPP responses to faces or FITs, suggesting a marked anthropomorphization of objects in women...
September 2016: Social Cognitive and Affective Neuroscience
Susan Faja, Geraldine Dawson, Elizabeth Aylward, Ellen M Wijsman, Sara Jane Webb
OBJECTIVE: To test differences in neural sensitivity to facial expressions, including expressions with open versus closed mouths, exhibited by (1) adults with autism spectrum disorder (ASD) compared to neurotypical adults, and by (2) short versus long serotonin transporter allele (SLC6A4) carriers. METHODS: Event related potentials (ERPs) to happy, fearful, and neutral expressions were collected from neurotypical adults (n=25) and adults with ASD (n=27)-of whom 32 had short and 13 had homozygous long SLC6A4 alleles...
June 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
Renny Edwin Fernandez, Anil Koklu, Amin Mansoorifar, Ali Beskok
We report dielectrophoretic (DEP) assembly of biological cells and microparticles using platinum-black electrodeposited conductive textile fiber. The three-dimensional conductive structures with high aspect ratios were found to facilitate high electric field regions, as revealed by scanning electron microscope characterization. The effective conducting area (Aeff) and its stability of thread electrodes were estimated using electrochemical methods. Potential of platinum black electrodeposited thread as 3-D electrodes for creating high gradient electrical field for dielectrophoretic assembly of microspheres and Saccharomyces cerevisiae (yeast cells) into 1D and two-dimensional structures over long ranges under the application of low voltages (4-10 Vpp) has been demonstrated...
May 2016: Biomicrofluidics
Farzin Forooghian, Peter J Kertes, Kenneth T Eng, David A Albiani, Andrew W Kirker, Andrew B Merkur, Nader Fallah, Sijia Cao, Jing Cui, Chris Or, Joanne A Matsubara
OBJECTIVE: Our previous work has shown that, after intravitreal bevacizumab (IVB) administration, decreases in the levels of vascular endothelial growth factor (VEGF)-A and placental growth factor (PlGF), along with increases in the levels of interleukin (IL)-8 and transforming growth factor (TGF)-β2, can be observed. It is not yet known if similar changes occur after intravitreal ranibizumab (IVR). The purpose of this study was to examine intraocular cytokine changes after IVR. DESIGN: Prospective clinical study...
April 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
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