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Yeejin Lee, Keigo Hirakawa, Truong Nguyen
Image defogging is a technique used extensively for enhancing visual quality of images in bad weather conditions. Even though defogging algorithms have been well studied, defogging performance is degraded by demosaicking artifacts and sensor noise amplification in distant scenes. In order to improve visual quality of restored images, we propose a novel approach to perform defogging and demosaicking simultaneously. We conclude that better defogging performance with fewer artifacts can be achieved when a defogging algorithm is combined with a demosaicking algorithm simultaneously...
November 22, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
Ji Young Park, Miyoung Lim, Wonho Yang, Kiyoung Lee
Accurately measuring the usage patterns of consumer products (CPs) is important to conduct realistic exposure assessments. We determined the exposure factors for 18 consumer products: household bleach, mold stain remover, all-purpose cleaner, washing machine cleaner, air conditioner cleaner, glass cleaner, drain cleaner, adhesive remover, liquid snow chain, tire shine spray, wheel cleaner, rain repellent, car wax spray, leather polish, furniture polish, anti-fog product, fabric waterproofing spray, and rust inhibitor...
November 24, 2016: Food and Chemical Toxicology
Jelle Demeestere, Claire Sewell, Jennifer Rudd, Timothy Ang, Louise Jordan, James Wills, Carlos Garcia-Esperon, Ferdinand Miteff, Venkatesh Krishnamurthy, Neil Spratt, Longting Lin, Andrew Bivard, Mark Parsons, Christopher Levi
Telestroke services have been shown to increase stroke therapy access in rural areas. The implementation of advanced CT imaging for patient assessment may improve patient selection and detection of stroke mimics in conjunction with telestroke. We implemented a telestroke service supported by multimodal CT imaging in a rural hospital in Australia. Over 21months we conducted an evaluation of service activation, thrombolysis rates and use of multimodal imaging to assess the feasibility of the service. Rates of symptomatic intracranial haemorrhage and 90-day modified Rankin Score were used as safety outcomes...
November 22, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Saïd C Boubidi, David Roiz, Marie Rossignol, Fabrice Chandre, Romain Benoit, Marc Raselli, Charles Tizon, Bernard Cadiou, Reda Tounsi, Christophe Lagneau, Didier Fontenille, Paul Reiter
BACKGROUND: Ultra-low volume (ULV) insecticidal aerosols dispensed from vehicle-mounted cold-foggers are widely considered the method of choice for control of Aedes aegypti and Ae. albopictus during outbreaks of dengue and chikungunya and, more recently, Zika. Nevertheless, their effectiveness has been poorly studied, particularly in Europe. Nearly all published studies of ULV efficacy are bio-assays based on the mortality of caged mosquitoes. In our study we preferred to monitor the direct impact of treatments on the wild mosquito populations...
November 23, 2016: Parasites & Vectors
Sen Ye, Qiang Cao, Qingsong Wang, Tianyuan Wang, Qing Peng
It has been a long standing challenge to efficiently separate oil and water since prehistoric times, and now it has become even more desirable in oily wastewater purification and oil spill cleanup. Here we introduce a super oil-water separation filter with superhydrophilicity and underwater superoleophobicity, fabricated using femtosecond laser micro-hole drilling of a titanium foil. Such a simply-made filter, without any modification, can achieve a separation efficiency exceeding 99% in eight typical oil-water mixtures...
November 21, 2016: Scientific Reports
Thriveen S C Mana, Brett Sitzlar, Jennifer L Cadnum, Annette L Jencson, Sreelatha Koganti, Curtis J Donskey
Because manual cleaning is often suboptimal, there is increasing interest in use of automated devices for room decontamination. We demonstrated that an ultrasonic room fogging system that generates submicron droplets of peracetic acid and hydrogen peroxide eliminated Clostridium difficile spores and vegetative pathogens from exposed carriers in hospital rooms and adjacent bathrooms.
November 18, 2016: American Journal of Infection Control
Cagla Sahin, Nikolai Lorenzen, Lasse Lemminger, Gunna Christiansen, Ian Max Møller, Louise Buur Vesterager, Lars Østergaard Pedersen, Karina Fog, Pekka Kallunki, Daniel E Otzen
The 140-residue natively disordered protein α-synuclein (aSN) is a central component in the development of a family of neurodegenerative diseases termed synucleinopathies. This is attributed to its ability to form cytotoxic aggregates such as oligomers and amyloid fibrils. Consequently there have been intense efforts to avoid aggregation or reroute the aggregation pathway using pharmaceutical agents such as small molecules, chaperones and antibodies. aSN's lack of persistent structure in the monomeric state, as well as the multitude of different oligomeric and even different fibrillar states, makes it difficult to raise antibodies that would be efficacious in neutralizing all conformations of aSN...
January 2017: Biophysical Chemistry
Chao Deng, Yao Mao, Ge Ren
In this paper, an approach to improve the disturbance suppression performance of a fast steering mirror (FSM) tracking control system based on a charge-coupled device (CCD) and micro-electro-mechanical system (MEMS) inertial sensors is proposed. The disturbance observation and compensation (DOC) control method is recommended to enhance the classical multi-loop feedback control (MFC) for line-of-sight (LOS) stabilization in the FSM system. MEMS accelerometers and gyroscopes have been used in the FSM system tentatively to implement MFC instead of fiber-optic gyroscopes (FOG) because of its smaller, lighter, cheaper features and gradually improved performance...
November 15, 2016: Sensors
Aleksandra V Birn-Jeffery, Timothy E Higham
Locomotion through complex habitats relies on the continuous feedback from a number of sensory systems, including vision. Animals face a visual trade-off between acuity and light sensitivity that depends on light levels, which will dramatically impact the ability to process information and move quickly through a habitat, making ambient illumination an incredibly important ecological factor. Despite this, there is a paucity of data examining ambient light in the context of locomotor dynamics. There have been several independent transitions from the nocturnal ancestor to a diurnal activity pattern among geckos...
November 15, 2016: Journal of Experimental Biology
Gehui Wang, Renyi Zhang, Mario E Gomez, Lingxiao Yang, Misti Levy Zamora, Min Hu, Yun Lin, Jianfei Peng, Song Guo, Jingjing Meng, Jianjun Li, Chunlei Cheng, Tafeng Hu, Yanqin Ren, Yuesi Wang, Jian Gao, Junji Cao, Zhisheng An, Weijian Zhou, Guohui Li, Jiayuan Wang, Pengfei Tian, Wilmarie Marrero-Ortiz, Jeremiah Secrest, Zhuofei Du, Jing Zheng, Dongjie Shang, Limin Zeng, Min Shao, Weigang Wang, Yao Huang, Yuan Wang, Yujiao Zhu, Yixin Li, Jiaxi Hu, Bowen Pan, Li Cai, Yuting Cheng, Yuemeng Ji, Fang Zhang, Daniel Rosenfeld, Peter S Liss, Robert A Duce, Charles E Kolb, Mario J Molina
Sulfate aerosols exert profound impacts on human and ecosystem health, weather, and climate, but their formation mechanism remains uncertain. Atmospheric models consistently underpredict sulfate levels under diverse environmental conditions. From atmospheric measurements in two Chinese megacities and complementary laboratory experiments, we show that the aqueous oxidation of SO2 by NO2 is key to efficient sulfate formation but is only feasible under two atmospheric conditions: on fine aerosols with high relative humidity and NH3 neutralization or under cloud conditions...
November 29, 2016: Proceedings of the National Academy of Sciences of the United States of America
Jie Yang, Zuhua Li, Xuedong Gan, Gang Zhai, Jiajia Gao, Chenling Xiong, Xueping Qiu, Xuebin Wang, Zhan Yin, Fang Zheng
Protein phosphatase 2 regulatory subunit B, alpha (PPP2R3A), a regulatory subunit of protein phosphatase 2A (PP2A), is a major serine/threonine phosphatase that regulates crucial function in development and growth. Previous research has implied that PPP2R3A was involved in heart failure, and PR130, the largest transcription of PPP2R3A, functioning in the calcium release of sarcoplasmic reticulum (SR), plays an important role in the excitation-contraction (EC) coupling. To obtain a better understanding of PR130 functions in myocardium and cardiac development, two pr130-deletion zebrafish lines were generated using clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated proteins (Cas) system...
November 11, 2016: International Journal of Molecular Sciences
Hongbo Fu, Jianmin Chen
With rapid industrialization and urbanization, China is facing a great challenge with regard to severe fog-haze pollutions, which were characterized by high fine particulate concentration level and visibility impairment. The control strategies for atmosphere pollutions in China were not only cutting-edge topics of atmospheric research, but also an urgent issue to be addressed by the Chinese government and the public. Focused on the core scientific issues of the haze and fog pollution, this paper reviews the main studies conducted in China, especially after 2010, including formation mechanisms, evolution features, and factors contributing to the fog-haze pollutions...
November 8, 2016: Science of the Total Environment
Bing Ouyang, Weilin Hou, Cuiling Gong, Fraser R Dalgleish, Frank M Caimi, Anni K Vuorenkoski, Gero Nootz, Xifeng Xiao, David G Voelz
Turbulence poses challenges in many atmospheric and underwater surveillance applications. The compressive line sensing (CLS) active imaging scheme has been demonstrated in simulations and test tank experiments to be effective in scattering media such as turbid coastal water, fog, and mist. The CLS sensing model adopts the distributed compressive sensing theoretical framework that exploits both intrasignal sparsity and the highly correlated nature of adjacent areas in a natural scene. During sensing operation, the laser illuminates the spatial light modulator digital micromirror device to generate a series of one-dimensional binary sensing patterns from a codebook to encode the current target line segment...
October 20, 2016: Applied Optics
Sahdev Kumar, Hideo Furuhashi
A long-range measurement system comprising an ultrasonic range sensor with a high-power ultrasonic transmitter array in air was investigated. The system is simple in construction and can be used under adverse conditions such as fog, rain, darkness, and smoke. However, due to ultrasonic waves are well absorbed by air molecules, the measurable range is limited to a few meters. Therefore, we developed a high-power ultrasonic transmitter array consisting of 144 transmitting elements. All elements are arranged in the form of a 12×12 array pattern...
February 2017: Ultrasonics
Céline Tard, Kathy Dujardin, Jean-Louis Bourriez, Behnam Molaee-Ardekani, Philippe Derambure, Luc Defebvre, Arnaud Delval
OBJECTIVE: To investigate the cortical integration of attentional stimuli during motor preparation in parkinsonian patients with freezing of gait (FoG, n=12) or without freezing of gait (n=13), and in aged-matched healthy controls (n=13). We hypothesized that interference between attention and action in freezers would be revealed by differences in cortical modulation during this dual task. METHODS: Attention during step preparation was modulated by means of an auditory oddball discrimination task...
December 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
Seamas C Donnelly
No abstract text is available yet for this article.
October 2016: QJM: Monthly Journal of the Association of Physicians
James F Harwood, Wendy L Helmey, Brent B Turnwall, Kevin D Justice, Muhammed Farooq, Alec G Richardson
Because Aedes aegypti , a vector of dengue, chikungunya, and Zika viruses, exhibits resting and reproductive behaviors that present challenges to control them, pesticide application equipment available for vector control must be evaluated for their ability to control this species in a variety of cryptic environments. Five types of pesticide sprayers, representing 3 spray technologies (1 mister, 2 ultra-low volume [ULV] cold foggers, and 2 ULV thermal foggers), were evaluated for their ability to control adult and immature stages of Ae...
September 2016: Journal of the American Mosquito Control Association
Kengo Manabe, Chie Tanaka, Yukari Moriyama, Mizuki Tenjimbayashi, Chiaki Nakamura, Yuki Tokura, Takeshi Matsubayashi, KyuHong Kyung, Seimei Shiratori
Reflection from various surfaces of many optical systems, such as photovoltaics and displays, is critical issue for their performances, and anti-reflection coatings play a pivotal role in a wide variety of optical technologies, which reduce light reflectance loss and hence maximize light transmission. With the current movement towards optically transparent polymeric media and coatings for anti-reflection technology, the need for economical and environmentally friendly materials and methods without dependence on shape or size has clearly been apparent...
November 1, 2016: ACS Applied Materials & Interfaces
K Chitravathi, O P Chauhan, P S Raju
Shellac-based surface coating was used in combination with passive modified atmosphere (MA) packaging for shelf life extension of fresh green chillies. The green chillies were coated with shellac coating, packed in anti-fog film and kept at 8 ± 1 °C for storage along with uncoated control. The coated and MA packed chillies showed significantly lower respiration rates as compared to control. The physico-chemical characteristics showed significantly lesser variations in terms of physiological loss in weight, firmness, colour, pigments, ascorbic acid and antioxidant activity during storage...
August 2016: Journal of Food Science and Technology
Vinoth Wigneswaran, Kristian Fog Nielsen, Claus Sternberg, Peter Ruhdal Jensen, Anders Folkesson, Lars Jelsbak
BACKGROUND: Although a transition toward sustainable production of chemicals is needed, the physiochemical properties of certain biochemicals such as biosurfactants make them challenging to produce in conventional bioreactor systems. Alternative production platforms such as surface-attached biofilm populations could potentially overcome these challenges. Rhamnolipids are a group of biosurfactants highly relevant for industrial applications. However, they are mainly produced by the opportunistic pathogen Pseudomonas aeruginosa using hydrophobic substrates such as plant oils...
October 24, 2016: Microbial Cell Factories
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