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https://www.readbyqxmd.com/read/29775829/synthesis-of-mesoporous-triple-metal-nanosorbent-from-layered-double-hydroxide-as-an-efficient-new-sorbent-for-removal-of-dye-from-water-and-wastewater
#1
Miloš Kostić, Miljana Radović, Nena Velinov, Slobodan Najdanović, Danijela Bojić, Andrew Hurt, Aleksandar Bojić
In this study, co-precipitation synthesis of the mesoporous triple-metal nanosorbent from Fe, Cu, Ni layered double hydroxide (FeCuNi-LDH), on the basis of the data obtained from the TG analysis was carried out. The FTIR spectroscopy and XRD results confirm the formation of CuO, NiO and Fe2 O3 nanoparticles, while the EDX analysis does not show significant variations on the surface in elemental composition. BET analysis shows that FeCuNi-280 (FeCuNi-LDH calcinated at 280 °C) with mesoporous structure, has larger surface area compared to FeCuNi-LDH and FeCuNi-550 (FeCuNi-LDH calcinated at 550 °C)...
May 15, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29774867/incorporation-of-dynamic-stopping-strategy-into-the-high-speed-ssvep-based-bcis
#2
Jing Jiang, Erwei Yin, Chunhui Wang, Minpeng Xu, Dong Ming
OBJECTIVE: Electroencephalography (EEG) is a non-linear and non-stationary process, as a result, its features are unstable and often vary in quality across trials, which poses significant challenges to brain-computer interfaces (BCIs). One remedy to this problem is to adaptively collect sufficient EEG evidence using dynamic stopping (DS) strategies. The high-speed steady-state visual evoked potential (SSVEP)-based BCI has experienced tremendous progress in recent years. This study aims to further improve the high-speed SSVEP-based BCI by incorporating the DS strategy...
May 18, 2018: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29774561/the-relationship-between-differential-stimulus-relatedness-and-implicit-measure-effect-sizes
#3
Jamie Cummins, Bryan Roche, Ian Tyndall, Aoife Cartwright
Implicit measures have been hypothesized to allow researchers to ascertain the existence and strength of relations between stimuli, often in the context of research on attitudes. However, little controlled behavioral research has focused on whether stimulus relations, and the degree of relatedness within such relations, are indexed by implicit measures. The current study eamined this issue using a behavior-analytic implicit-style stimulus relation indexing procedure known as the Function Acquisition Speed Test (FAST)...
May 17, 2018: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/29774475/neuropsychological-profiles-of-breast-cancer-and-brain-tumor-cohorts-in-northeast-ontario-canada
#4
Matias Mariani, Mark William Glister Collins
PURPOSE: As developments in cancer treatment have improved outcomes, research has increasingly focused on the role of cancer-related cognitive impairment (CRCI) in quality of life for cancer survivors. Impairment profiles have been heterogeneous across studies, necessitating the study of these effects across different cohorts. The purpose of this preliminary study is to compare the memory profiles of Northeast Ontario breast and CNS cancer patients, as there is no literature which exists for profiling CRCI within this largely rural region...
May 17, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29774211/3d-printed-e-tongue
#5
Gabriel Gaál, Tatiana A da Silva, Vladimir Gaál, Rafael C Hensel, Lucas R Amaral, Varlei Rodrigues, Antonio Riul
Nowadays, one of the biggest issues addressed to electronic sensor fabrication is the build-up of efficient electrodes as an alternative way to the expensive, complex and multistage processes required by traditional techniques. Printed electronics arises as an interesting alternative to fulfill this task due to the simplicity and speed to stamp electrodes on various surfaces. Within this context, the Fused Deposition Modeling 3D printing is an emerging, cost-effective and alternative technology to fabricate complex structures that potentiates several fields with more creative ideas and new materials for a rapid prototyping of devices...
2018: Frontiers in Chemistry
https://www.readbyqxmd.com/read/29774001/cognitive-motor-interference-in-an-ecologically-valid-street-crossing-scenario
#6
Christin Janouch, Uwe Drescher, Konstantin Wechsler, Mathias Haeger, Otmar Bock, Claudia Voelcker-Rehage
Laboratory-based research revealed that gait involves higher cognitive processes, leading to performance impairments when executed with a concurrent loading task. Deficits are especially pronounced in older adults. Theoretical approaches like the multiple resource model highlight the role of task similarity and associated attention distribution problems. It has been shown that in cases where these distribution problems are perceived relevant to participant's risk of falls, older adults prioritize gait and posture over the concurrent loading task...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29773999/fitts-law-in-the-control-of-isometric-grip-force-with-naturalistic-targets
#7
Zachary C Thumser, Andrew B Slifkin, Dylan T Beckler, Paul D Marasco
Fitts' law models the relationship between amplitude, precision, and speed of rapid movements. It is widely used to quantify performance in pointing tasks, study human-computer interaction, and generally to understand perceptual-motor information processes, including research to model performance in isometric force production tasks. Applying Fitts' law to an isometric grip force task would allow for quantifying grasp performance in rehabilitative medicine and may aid research on prosthetic control and design...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29772820/effective-crack-detection-in-railway-axles-using-vibration-signals-and-wpt-energy
#8
María Jesús Gómez, Eduardo Corral, Cristina Castejón, Juan Carlos García-Prada
Crack detection for railway axles is key to avoiding catastrophic accidents. Currently, non-destructive testing is used for that purpose. The present work applies vibration signal analysis to diagnose cracks in real railway axles installed on a real Y21 bogie working on a rig. Vibration signals were obtained from two wheelsets with cracks at the middle section of the axle with depths from 5.7 to 15 mm, at several conditions of load and speed. Vibration signals were processed by means of wavelet packet transform energy...
May 17, 2018: Sensors
https://www.readbyqxmd.com/read/29772797/automated-geo-co-registration-of-multi-temporal-very-high-resolution-imagery
#9
Youkyung Han, Jaehong Oh
For time-series analysis using very-high-resolution (VHR) multi-temporal satellite images, both accurate georegistration to the map coordinates and subpixel-level co-registration among the images should be conducted. However, applying well-known matching methods, such as scale-invariant feature transform and speeded up robust features for VHR multi-temporal images, has limitations. First, they cannot be used for matching an optical image to heterogeneous non-optical data for georegistration. Second, they produce a local misalignment induced by differences in acquisition conditions, such as acquisition platform stability, the sensor's off-nadir angle, and relief displacement of the considered scene...
May 17, 2018: Sensors
https://www.readbyqxmd.com/read/29772485/neurocognitive-dysfunction-in-subjects-at-clinical-high-risk-for-psychosis-a-meta-analysis
#10
Wei Zheng, Qing-E Zhang, Dong-Bin Cai, Chee H Ng, Gabor S Ungvari, Yu-Ping Ning, Yu-Tao Xiang
Findings of neurocognitive dysfunction in subjects at Clinical High Risk for Psychosis (CHR-P) have been controversial. This meta-analysis systematically examined studies of neurocognitive functions using the MATRICS Consensus Cognitive Battery (MCCB) in CHR-P. An independent literature search of both English and Chinese databases was conducted by two reviewers. Standardized mean difference (SMD) was calculated using a random effects model to evaluate the effect size of the meta-analytic results. Six case-control studies (n = 396) comparing neurocognitive functions between CHR-P subjects (n = 197) and healthy controls (n = 199) using the MCCB were identified; 4 (66...
May 5, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29772345/autologous-liquid-platelet-rich-fibrin-a-novel-drug-delivery-system
#11
REVIEW
Richard J Miron, Yufeng Zhang
There is currently widespread interest within the biomaterial field to locally deliver biomolecules for bone and cartilage regeneration. Substantial work to date has focused on the potential role of these biomolecules during the healing process, and the carrier system utilized is a key factor in their effectiveness. Platelet rich fibrin (PRF) is a naturally derived fibrin scaffold that is easily obtained from peripheral blood following centrifugation. Slower centrifugation speeds have led to the commercialization of a liquid formulation (liquid-PRF) resulting in an upper plasma layer composed of liquid fibrinogen/thrombin prior to clot formation that remains in its liquid phase for approximately 15 minutes until injected into bodily tissues...
May 14, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29772341/development-of-an-auto-phase-separable-and-reusable-graphene-oxide-potato-starch-based-cross-linked-bio-composite-adsorbent-for-removal-of-methylene-blue-dye
#12
Amartya Bhattacharyya, Bhaskar Banerjee, Soumitra Ghorai, Dipak Rana, Indranil Roy, Gunjan Sarkar, Nayan Ranjan Saha, Sriparna De, Tapas Kumar Ghosh, Sourav Sadhukhan, Dipankar Chattopadhyay
In this work, we report the development of a cross-linked bio-composite consisting of graphene oxide, potato starch, cross-linker glutaraldehyde and its application to adsorption of the industrial dye, methylene blue, from aqueous solution. The inexpensiveness, non-hazardous nature and easy bio-degradability are the major reasons for the selection of starch material as one of the components of the bio-composite. The bio-composite has been characterized by FTIR, SEM, XRD, particle size and zeta potential analysis...
May 14, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29771710/cognitive-decline-after-delirium-in-patients-undergoing-cardiac-surgery
#13
Charles H Brown, Julia Probert, Ryan Healy, Michelle Parish, Yohei Nomura, Atsushi Yamaguchi, Jing Tian, Kenton Zehr, Kaushik Mandal, Vidyulata Kamath, Karin J Neufeld, Charles W Hogue
BACKGROUND: Delirium is common after cardiac surgery and has been associated with morbidity, mortality, and cognitive decline. However, there are conflicting reports on the magnitude, trajectory, and domains of cognitive change that might be affected. The authors hypothesized that patients with delirium would experience greater cognitive decline at 1 month and 1 yr after cardiac surgery compared to those without delirium. METHODS: Patients who underwent coronary artery bypass and/or valve surgery with cardiopulmonary bypass were eligible for this cohort study...
May 16, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29771675/action-driven-visual-object-tracking-with-deep-reinforcement-learning
#14
Sangdoo Yun, Jongwon Choi, Youngjoon Yoo, Kimin Yun, Jin Young Choi
In this paper, we propose an efficient visual tracker, which directly captures a bounding box containing the target object in a video by means of sequential actions learned using deep neural networks. The proposed deep neural network to control tracking actions is pretrained using various training video sequences and fine-tuned during actual tracking for online adaptation to a change of target and background. The pretraining is done by utilizing deep reinforcement learning (RL) as well as supervised learning...
June 2018: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/29771185/can-the-relationship-between-rapid-automatized-naming-and-word-reading-be-explained-by-a-catastrophe-empirical-evidence-from-students-with-and-without-reading-difficulties
#15
Georgios D Sideridis, Panagiotis Simos, Angeliki Mouzaki, Dimitrios Stamovlasis, George K Georgiou
The purpose of the present study was to explain the moderating role of rapid automatized naming (RAN) in word reading with a cusp catastrophe model. We hypothesized that increases in RAN performance speed beyond a critical point would be associated with the disruption in word reading, consistent with a "generic shutdown" hypothesis. Participants were 587 elementary schoolchildren (Grades 2-4), among whom 87 had reading comprehension difficulties per the IQ-achievement discrepancy criterion. Data were analyzed via a cusp catastrophe model derived from the nonlinear dynamics systems theory...
May 1, 2018: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/29770161/numerical-investigation-on-head-and-brain-injuries-caused-by-windshield-impact-on-riders-using-electric-self-balancing-scooters
#16
Shi Shang, Yanting Zheng, Ming Shen, Xianfeng Yang, Jun Xu
To investigate head-brain injuries caused by windshield impact on riders using electric self-balancing scooters (ESS). Numerical vehicle ESS crash scenarios are constructed by combining the finite element (FE) vehicle model and multibody scooter/rider models. Impact kinematic postures of the head-windshield contact under various impact conditions are captured. Then, the processes during head-windshield contact are reconstructed using validated FE head/laminated windshield models to assess the severity of brain injury caused by the head-windshield contact...
2018: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/29769821/validity-and-reliability-of-surface-electromyography-measurements-from-a-wearable-athlete-performance-system
#17
Scott K Lynn, Casey M Watkins, Megan A Wong, Katherine Balfany, Daniel F Feeney
The Athos ® wearable system integrates surface electromyography (sEMG ) electrodes into the construction of compression athletic apparel. The Athos system reduces the complexity and increases the portability of collecting EMG data and provides processed data to the end user. The objective of the study was to determine the reliability and validity of Athos as compared with a research grade sEMG system. Twelve healthy subjects performed 7 trials on separate days (1 baseline trial and 6 repeated trials). In each trial subjects wore the wearable sEMG system and had a research grade sEMG system's electrodes placed just distal on the same muscle, as close as possible to the wearable system's electrodes...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29769363/local-interactions-underlying-collective-motion-in-human-crowds
#18
Kevin W Rio, Gregory C Dachner, William H Warren
It is commonly believed that global patterns of motion in flocks, schools and crowds emerge from local interactions between individuals, through a process of self-organization. The key to explaining such collective behaviour thus lies in deciphering these local interactions. We take an experiment-driven approach to modelling collective motion in human crowds. Previously, we observed that a pedestrian aligns their velocity vector (speed and heading direction) with that of a neighbour. Here we investigate the neighbourhood of interaction in a crowd: which neighbours influence a pedestrian's behaviour, how this depends on neighbour position, and how the influences of multiple neighbours are combined...
May 16, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29768234/improved-experimental-time-of-ultra-large-bioassays-using-a-parallelised-microfluidic-biochip-architecture-scheduling
#19
Maryam Taajobian, Ali Jahanian
Digital microfluidic is an emerging technology to reduce the cost and time of experiments and improve the flexibility, automate-ability and correctness of biochemical assays. In many of applications such as drug discovery and DNA profiling, a large number of bio-operations (e.g. the chemical operations used in biology applications) must be done. In these applications, parallelising the operations will be critical in accuracy and cost of the process and digital microfluidic biochips can be considered as a reasonable platform...
June 2018: IET Nanobiotechnology
https://www.readbyqxmd.com/read/29767987/a-full-visible-spectrum-invisibility-cloak-for-mesoscopic-metal-wires
#20
Sang-Woo Kim, Byeong Wan An, Eunjin Cho, Byung Gwan Hyun, Yoon-Jong Moon, Sun-Kyung Kim, Jang-Ung Park
Structured metals can sustain a very large scattering cross-section that is induced by localized surface plasmons, which often has an adverse effect on their use as transparent electrodes in displays, touch screens, and smart windows due to an issue of low clarity. Here, we report a broadband optical cloaking strategy for the network of mesoscopic metal wires with submicrometer to micrometer diameters, which is exploited for manufacturing and application of high-clarity metal-wires-based transparent electrodes...
May 16, 2018: Nano Letters
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