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https://www.readbyqxmd.com/read/28087365/parasite-induced-increases-in-the-energy-costs-of-movement-of-host-freshwater-fish
#1
Ondřej Slavík, Pavel Horký, Karel Douda, Josef Velíšek, Jitka Kolářová, Pavel Lepič
Parasitization by the larvae (glochidia) of freshwater mussels can cause harm to a fish's gills, resulting in less effective respiration and/or reduced activity by the host fish. The impact of glochidia infections on the host's physiology remains poorly understood, and no information is available concerning energy consumption in parasitized fish. Hence, we obtained glochidia of the invasive unionid mussel Sinanodonta (Anodonta) woodiana and experimentally infected common carp, Cyprinus carpio, tagged with physiological sensors to measure energy consumption...
January 10, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28086902/exploiting-temporal-and-nonstationary-features-in-breathing-sound-analysis-for-multiple-obstructive-sleep-apnea-severity-classification
#2
Jaepil Kim, Taehoon Kim, Donmoon Lee, Jeong-Whun Kim, Kyogu Lee
BACKGROUND: Polysomnography (PSG) is the gold standard test for obstructive sleep apnea (OSA), but it incurs high costs, requires inconvenient measurements, and is limited by a one-night test. Thus, a repetitive OSA screening test using affordable data would be effective both for patients interested in their own OSA risk and in-hospital PSG. The purpose of this research was to develop a four-OSA severity classification model using a patient's breathing sounds. METHODS: Breathing sounds were recorded from 83 subjects during a PSG test...
January 7, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28086892/pressure-ulcer-image-segmentation-technique-through-synthetic-frequencies-generation-and-contrast-variation-using-toroidal-geometry
#3
Ortiz P David, Daniel Sierra-Sosa, Begoña García Zapirain
BACKGROUND: Pressure ulcers have become subject of study in recent years due to the treatment high costs and decreased life quality from patients. These chronic wounds are related to the global life expectancy increment, being the geriatric and physical disable patients the principal affected by this condition. Injuries diagnosis and treatment usually takes weeks or even months by medical personel. Using non-invasive techniques, such as image processing techniques, it is possible to conduct an analysis from ulcers and aid in its diagnosis...
January 6, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28081356/canna-edulis-leaf-extract-mediated-preparation-of-stabilized-silver-nanoparticles-characterization-antimicrobial-activity-and-toxicity-studies
#4
S V Otari, S H Pawar, Sanjay K S Patel, Raushan K Singh, Sang-Yong Kim, Jai Hyo Lee, Liaoyuan Zhang, Jung-Kul Lee
A novel approach to synthesize silver nanoparticles (AgNPs) using leaf extract of Canna edulis Ker-Gawl. (CELE) under ambient conditions is reported here. The as-prepared AgNPs were analyzed by UV-visible spectroscopy, transmission emission microscopy, X-ray diffraction, Fourier transform-infra red spectroscopy, energy-dispersive analysis of X-ray spectroscopy, zeta potential, and dynamic light scattering. The AgNPs showed excellent antimicrobial activity against various pathogens, including bacteria and various fungi...
January 12, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28081276/correlation-and-path-analysis-of-biomass-sorghum-production
#5
T P S Vendruscolo, M A A Barelli, M A S Castrillon, R S da Silva, F T de Oliveira, C L Corrêa, B W Zago, F D Tardin
Sorghum biomass is an interesting raw material for bioenergy production due to its versatility, potential of being a renewable energy source, and low-cost of production. The objective of this study was to evaluate the genetic variability of biomass sorghum genotypes and to estimate genotypic, phenotypic, and environmental correlations, and direct and indirect effects of seven agronomic traits through path analysis. Thirty-four biomass sorghum genotypes and two forage sorghum genotypes were cultivated in a randomized block design with three replicates...
December 23, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28078718/fabric-based-alkaline-direct-formate-microfluidic-fuel-cells
#6
Kryls Domalaon, Catherine Tang, Alex Mendez, Franky Bernal, Krutarth Purohit, Linda Pham, John Haan, Frank A Gomez
Fabric-based microfluidic fuel cells (MFCs) serve as a novel, cost-efficient alternative to traditional FCs and batteries, since fluids naturally travel across fabric via capillary action, eliminating the need for an external pump and lowering production and operation costs. Building on previous research with Y-shaped paper-based MFCs, fabric-based MFCs mitigate fragility and durability issues caused by long periods of fuel immersion. In the present work we describe a microfluidic fabric-based direct formate fuel cell (DFFC), with 5 M potassium formate and 30% hydrogen peroxide as the anode fuel and cathode oxidant, respectively...
January 12, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28075372/distributed-sensor-nodes-charged-by-mobile-charger-with-directional-antenna-and-by-energy-trading-for-balancing
#7
Celso Moraes, Sunghee Myung, Sangkeum Lee, Dongsoo Har
Provision of energy to wireless sensor networks is crucial for their sustainable operation. Sensor nodes are typically equipped with batteries as their operating energy sources. However, when the sensor nodes are sited in almost inaccessible locations, replacing their batteries incurs high maintenance cost. Under such conditions, wireless charging of sensor nodes by a mobile charger with an antenna can be an efficient solution. When charging distributed sensor nodes, a directional antenna, rather than an omnidirectional antenna, is more energy-efficient because of smaller proportion of off-target radiation...
January 10, 2017: Sensors
https://www.readbyqxmd.com/read/28075054/inkjet-printed-lithium-sulfur-microcathodes-for-all-printed-integrated-nanomanufacturing
#8
Craig A Milroy, Seonpil Jang, Toshihiko Fujimori, Ananth Dodabalapur, Arumugam Manthiram
Improved thin-film microbatteries are needed to provide appropriate energy-storage options to power the multitude of devices that will bring the proposed "Internet of Things" network to fruition (e.g., active radio-frequency identification tags and microcontrollers for wearable and implantable devices). Although impressive efforts have been made to improve the energy density of 3D microbatteries, they have all used low energy-density lithium-ion chemistries, which present a fundamental barrier to miniaturization...
January 11, 2017: Small
https://www.readbyqxmd.com/read/28075009/the-physiological-costs-of-prey-switching-reinforce-foraging-specialization
#9
Oliver E Hooker, Travis E Van Leeuwen, Colin E Adams
Sympatric speciation is thought to be strongly linked to resource specialization with alternative resource use acting as a fundamental agent driving divergence. However, sympatric speciation through niche expansion is dependent on foraging specialization being consistent over space and time. Standard metabolic rate is the minimal maintenance metabolic rate of an ectotherm in a post-absorptive and inactive state and can constitute a significant portion of an animal's energy budget; thus standard metabolic rate and growth rate are two measures frequently used as an indication of the physiological performance of individuals...
January 11, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28074956/tunable-superapolar-lotus-to-rose-hierarchical-nanosurfaces-via-vertical-carbon-nanotubes-driven-electrohydrodynamic-lithography
#10
Chiara Busà, Jonathan James Stanley Rickard, Eugene Chun, Yaw Chong, Viroshan Navaratnam, Pola Goldberg Oppenheimer
The development of a robust, cost-effective, scalable and simple technique that enables the design and construction of well-controlled large area superhydrophobic surface structures which can be easily tuned from lotus-leaf to rose-petal state is essential to enable progress in realising the full applied potential of such surfaces. In this study, we introduce the tuneable carbon nanotubes-based electrohydrodynamic lithography (CNT-EHL) to fabricate unique multiscale structured cones and nanohair-like architectures with various periodicities and dimensions, successfully enabling surface energy minimization...
January 11, 2017: Nanoscale
https://www.readbyqxmd.com/read/28074925/atomization-of-high-viscosity-fluids-for-aromatherapy-using-micro-heaters-for-heterogeneous-bubble-nucleation
#11
Junhui Law, Ka Wai Kong, Ho-Yin Chan, Winston Sun, Wen Jung Li, Eric Boa Fung Chau, George Kak Man Chan
The development of a novel lead-free microelectromechanical-system (MEMS)-based atomizer using the principle of thermal bubble actuation is presented. It is a low-cost, lead-free design that is environmentally friendly and harmless to humans. It has been tested to be applicable over a wide range of fluid viscosities, ranging from 1 cP (e.g., water) to 200 cP (e.g., oil-like fluid) at room temperature, a range that is difficult to achieve using ordinary atomizers. The results demonstrate that the average power consumption of the atomizer is approximately 1 W with an atomization rate of 0...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28074900/physical-controllability-of-complex-networks
#12
Le-Zhi Wang, Yu-Zhong Chen, Wen-Xu Wang, Ying-Cheng Lai
A challenging problem in network science is to control complex networks. In existing frameworks of structural or exact controllability, the ability to steer a complex network toward any desired state is measured by the minimum number of required driver nodes. However, if we implement actual control by imposing input signals on the minimum set of driver nodes, an unexpected phenomenon arises: due to computational or experimental error there is a great probability that convergence to the final state cannot be achieved...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28074612/a-new-cuo-fe2o3-mcmb-conversion-anode-in-high-performance-lithium-ion-battery-using-li1-35ni0-48fe0-1mn1-72o4-spinel-cathode
#13
Daniele Di Lecce, Roberta Verrelli, Daniele Campanella, Vittorio Marangon, Jusef Hassoun
Ternary CuO-Fe2O3-MCMB conversion anode is herein characterized and combined with high-voltage Li1.35Ni0.48Fe0.1Mn1.72O4 spinel cathode in a lithium-ion battery of relevant performances in terms of cycling stability and rate capability. The CuO-Fe2O3-MCMB composite is prepared using high-energy milling, i.e., a low-cost pathway which leads to a crystalline structure, and homogeneous submicrometrical morphology revealed by X-ray diffraction and electronic microscopy. The anode reversibly exchanges lithium ions by conversion reactions of CuO and Fe2O3, as well as by insertion into MCMB carbon...
January 10, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28074481/electronic-structure-of-stoichiometric-and-reduced-zno-from-periodic-relativistic-all-electron-hybrid-density-functional-calculations-using-numeric-atom-centered-orbitals
#14
Francesc Viñes, Francesc Illas
The atomic and electronic structure of stoichiometric and reduced ZnO wurtzite has been studied using a periodic relativistic all electron hybrid density functional (PBE0) approach and numeric atom-centered orbital basis set with quality equivalent to aug-cc-pVDZ. To assess the importance of relativistic effects, calculations were carried out without and with explicit inclusion of relativistic effects through the zero order regular approximation. The calculated band gap is ∼0.2 eV smaller than experiment, close to previous PBE0 results including relativistic calculation through the pseudopotential and ∼0...
January 11, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28072542/insights-into-the-distinct-lithiation-sodiation-of-porous-cobalt-oxide-by-in-operando-synchrotron-x-ray-techniques-and-ab-initio-molecular-dynamics-simulations
#15
Gui-Liang Xu, Tian Sheng, Lina Chong, Tianyuan Ma, Chengjun Sun, Xiaobing Zuo, Di-Jia Liu, Yang Ren, Xiaoyi Zhang, Yuzi Liu, Steve M Heald, Shi-Gang Sun, Zonghai Chen, Khalil Amine
Sodium-ion batteries (SIBs) have been considered as one of the promising power source candidates for the stationary storage industries owing to the much lower cost of sodium than lithium. It's well known that the electrode materials largely determine the energy density of the battery systems. However, recent discoveries on the electrode materials showed that most of them present distinct lithium and sodium storage performance, which is not yet well understood. In this work, we performed a comparative understanding on the structural changes of porous cobalt oxide during its electrochemical lithiation and sodiation process by in operando synchrotron small angel X-ray scattering, X-ray diffraction and X-ray absorption spectroscopy...
January 10, 2017: Nano Letters
https://www.readbyqxmd.com/read/28072515/ultralight-flexible-and-semi-transparent-metal-oxide-papers-for-photoelectrochemical-water-splitting
#16
Minwei Zhang, Chengyi Hou, Arnab Halder, Qijin Chi
Thanks to their versatile functionality, metal oxides (MOs) constitute one of the key family materials in a variety of current demands for sensor, catalysis, energy storage and conversion, optical electronics and piezoelectric mechanics. Much effort has focused on engineering specific nanostructure and macroscopic morphology of MOs that aims to enhance their performances, but the design and controlled synthesis of ultrafine nanostructured MOs in a cost-effective and facile way remains a challenge. In this work, we have exploited the advantages of intrinsic structures of graphene oxide (GO) papers, serving as a sacrificial template, to design and synthesize two-dimensional (2D) layered and free-standing MO papers with ultrafine nanostructures...
January 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28071835/macromolecular-design-strategies-for-preventing-active-material-crossover-in-non-aqueous-all-organic-redox-flow-batteries
#17
Sean E Doris, Ashleigh L Ward, Artem Baskin, Peter D Frischmann, Nagarjuna Gavvalapalli, Etienne Chénard, Christo S Sevov, David Prendergast, Jeffrey S Moore, Brett A Helms
Intermittent energy sources, including solar and wind, require scalable, low-cost, multi-hour energy storage solutions in order to be effectively incorporated into the grid. All-Organic non-aqueous redox-flow batteries offer a solution, but suffer from rapid capacity fade and low Coulombic efficiency due to the high permeability of redox-active species across the battery's membrane. Here we show that active-species crossover is arrested by scaling the membrane's pore size to molecular dimensions and in turn increasing the size of the active material above the membrane's pore-size exclusion limit...
January 10, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28071666/high-power-rechargeable-magnesium-iodine-battery-chemistry
#18
Huajun Tian, Tao Gao, Xiaogang Li, Xiwen Wang, Chao Luo, Xiulin Fan, Chongyin Yang, Liumin Suo, Zhaohui Ma, Weiqiang Han, Chunsheng Wang
Rechargeable magnesium batteries have attracted considerable attention because of their potential high energy density and low cost. However, their development has been severely hindered because of the lack of appropriate cathode materials. Here we report a rechargeable magnesium/iodine battery, in which the soluble iodine reacts with Mg(2+) to form a soluble intermediate and then an insoluble final product magnesium iodide. The liquid-solid two-phase reaction pathway circumvents solid-state Mg(2+) diffusion and ensures a large interfacial reaction area, leading to fast reaction kinetics and high reaction reversibility...
January 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28071605/carbon-nanotube-on-eraser-based-eco-friendly-fabrication-of-skin-like-large-area-matrix-of-flexible-strain-and-pressure-sensor
#19
Parikshit Sahatiya, Sushmee Badhulika
This paper reports a new type of electronic, recoverable skin-like pressure and strain sensor on flexible, bio-degradable pencil eraser substrate and has been fabricated by a solvent-free, low-cost and energy efficient process. Multi-walled carbon nanotube (MWCNTs) film as strain sensing element was patterned on pencil eraser by rolling pin and pre-compaction mechanical press which induces high interfacial bonding between the MWCNTs and eraser substrate which enables the sensor to achieve recoverability under ambient conditions...
January 10, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28071592/development-and-evaluation-of-zinc-phthalocyanine-nanoemulsions-for-use-in-photodynamic-therapy-for-leishmania-spp
#20
Luciana Betzler de Oliveira de Siqueira, Verônica da Silva Cardoso, Igor Almeida Rodrigues, Ana Lúcia Vazquez-Villa, Elisabete Pereira Dos Santos, Bruno da Costa Leal Ribeiro Guimarães, Cristal Dos Santos Cerqueira Coutinho, Alane Beatriz Vermelho, Eduardo Ricci Junior
Photodynamic therapy (PDT) combines light with photosensitizers (PS) for production of reactive oxygen species (ROS) that can kill infectious microorganisms such as bacteria, fungi and protozoa. The application of nanotechnology has enabled the advancement of PDT because many PS are insoluble in water, necessitating a nanocarrier as a physiologically acceptable carrier. Nanoemulsions are efficient nanocarriers for solubilizing liposoluble drugs, like the PS, in water. Cutaneous (CL) and mucocutaneous leishmaniasis (ML) are caused by different species of the genus Leishmania, transmitted to humans by sandfly bites...
February 10, 2017: Nanotechnology
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