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https://www.readbyqxmd.com/read/28222481/effect-of-diquafosol-three-per-cent-ophthalmic-solution-on-tear-film-and-corneal-aberrations-after-cataract-surgery
#1
Hun Lee, Sang Myung Kim, Seonghee Choi, Kyoung Yul Seo, Eung Kweon Kim, Tae-Im Kim
BACKGROUND: The aim was to evaluate the effect of diquafosol on tear film parameters and corneal aberrations after cataract surgery. METHODS: This retrospective, comparative, observational case series included patients who underwent cataract surgery with or without peri-operative use of diquafosol three per cent ophthalmic solution. Patients in group I (31 eyes) were treated with diquafosol three per cent ophthalmic solution six times a day from one week before surgery to three months after surgery...
February 21, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28222331/the-moro-reaction-more-than-a-reflex-a-ritualized-behavior-of-nonverbal-communication
#2
Pierre V Rousseau, Florence Matton, Renaud Lecuyer, Willy Lahaye
OBJECTIVE: To propose a phylogenetic significance to the Moro reflex which remains unexplained since its publication in 1918 because both hands are free at the end of the gesture. METHOD: Among the 75 videos of healthy term newborns we have filmed in a research project on antenatal education to parenthood, we describe a sequence that clearly showed the successive movements of the Moro reflex and we report the occurrence of this reflex in the videos that were recorded from Time 0 of birth defined as the moment that lies between the birth of the thorax and the pelvis of the infant...
February 18, 2017: Infant Behavior & Development
https://www.readbyqxmd.com/read/28222114/social-networks-and-inference-about-unknown-events-a-case-of-the-match-between-google-s-alphago-and-sedol-lee
#3
Jonghoon Bae, Young-Jae Cha, Hyungsuk Lee, Boyun Lee, Sojung Baek, Semin Choi, Dayk Jang
This study examines whether the way that a person makes inferences about unknown events is associated with his or her social relations, more precisely, those characterized by ego network density that reflects the structure of a person's immediate social relation. From the analysis of individual predictions over the Go match between AlphaGo and Sedol Lee in March 2016 in Seoul, Korea, this study shows that the low-density group scored higher than the high-density group in the accuracy of the prediction over a future state of a social event, i...
2017: PloS One
https://www.readbyqxmd.com/read/28222002/friction-reduction-through-ultrasonic-vibration-part-1-modelling-intermittent-contact
#4
Eric Vezzoli, Zlatko Virdih, Vincenzo Giamundo, Betty Lemaire-Semail, Frederic Giraud, Tomaz Rodic, Djordje Peric, Michael Adams
Ultrasonic vibration is employed to modify the friction of a finger pad in way that induces haptic sensations. A combination of intermittent contact and squeeze film levitation has been previously proposed as the most probable mechanism. In this paper, in order to understand the underlying principles that govern friction modulation by intermittent contact, numerical models based on finite element (FE) analysis and also a spring-Coulombic slider are developed. The physical input parameters for the FE model are optimised by measuring the contact phase shift between a finger pad and a vibrating plate...
February 17, 2017: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/28222001/friction-reduction-through-ultrasonic-vibration-part-2-experimental-evaluation-of-intermittent-contact-and-squeeze-film-levitation
#5
Thomas Sednaoui, Eric Vezzoli, Brygida Maria Dzidek, Betty Lemaire-Semail, Cedrick Chappaz, Michael Adams
In part 1 of the current study of haptic displays, a finite element (FE) model of a finger exploring a plate vibrating out-of-plane at ultrasonic frequencies was developed as well as a spring-frictional slider model. It was concluded that the reduction in friction induced by the vibrations could be ascribed to ratchet mechanism as a result of intermittent contact. The relative reduction in friction calculated using the FE model could be superimposed onto an exponential function of a dimensionless group defined from relevant parameters...
February 17, 2017: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/28221940/development-of-multifunctional-active-film-and-its-application-in-modified-atmosphere-packaging-of-shiitake-mushrooms
#6
Hong Jiang Wang, Duck Soon An, Dong Sun Lee
Agar-based films with multiple functions (CO2 absorption, water vapor absorption, and antimicrobial activity) were developed, tested for their properties, and then applied to the packaging of fresh shiitake mushrooms as an insert label. The films were cast from an agar-based aqueous solution containing a dissolving plasticizer (glycerol), a CO2 absorbent (sodium carbonate [SC] alone or a combination of SC and sodium glycinate [SC-SG]), and a volatile antimicrobial agent (carvacrol [CRV]). The agar of the film matrix is designed to serve as a water vapor absorbent...
September 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221923/matrix-specific-method-validation-of-an-automated-most-probable-number-system-for-use-in-measuring-bacteriological-quality-of-grade-a-milk-products
#7
Samantha Lindemann, Matthew Kmet, Ravinder Reddy, Steffen Uhlig
The U.S. Food and Drug Administration (FDA) oversees a long-standing cooperative federal and state milk sanitation program that uses the grade "A" Pasteurized Milk Ordinance standards to maintain the safety of grade "A" milk sold in the United States. The Pasteurized Milk Ordinance requires that grade "A" milk samples be tested using validated total aerobic bacterial and coliform count methods. The objective of this project was to conduct an interlaboratory method validation study to compare performance of a film plate method with an automated most-probable-number method for total aerobic bacterial and coliform counts, using statistical approaches from international data standards...
November 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221808/decoupled-hierarchical-structures-for-suppression-of-leidenfrost-phenomenon
#8
Nazanin Farokhnia, Seyed Mohammad Sajadi, Peyman Irajizad, Hadi Ghasemi
Thermal management of high temperature systems through cooling droplets is limited by the existence of the Leidenfrost point (LFP), at which the formation of a continuous vapor film between a hot solid and a cooling droplet diminishes the heat transfer rate. This limit results in a bottleneck for the advancement of the wide spectrum of systems including high-temperature power generation, electronics/photonics, reactors, and spacecraft. Despite a long time effort on development of surfaces for suppression of this phenomenon, this limit has only shifted to higher temperatures, but still exists...
February 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28221802/surface-segregation-and-bulk-aggregation-in-an-athermal-thin-film-of-polymer-nanoparticle-blends-strategies-of-controlling-phase-behavior
#9
Chih-Yu Teng, Yu-Jane Sheng, Heng-Kwong Tsao
The phase behavior of an athermal film of a polymer-nanoparticle blend (PNB) driven by depletion attraction is investigated by dissipative particle dynamics for nanospheres and nanocubes. Surface segregation is observed at low nanoparticle concentrations while bulk aggregation is seen at high concentrations. Surface excess and the aggregation number can be controlled by tuning the nanoparticle concentration. As surface-roughened or polymer-grafted nanoparticles are used, uniform PNBs are acquired due to the lack of depletion...
February 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28221758/synthesis-and-fabrication-of-collagen-coated-ostholamide-electrospun-nanofiber-scaffold-for-wound-healing
#10
Subramani Kandhasamy, Sathiamurthi Perumal, Balaraman Madhan, Narayanan Umamaheswari, Javaid Ahmad Banday, Paramasivan Thirumalai Perumal, Vichangal Pridiuldi Santhanakrishnan
A novel scaffold for effective wound healing treatment was developed utilizing natural product bearing collagen based biocompatible electro-spun nanofibres. Initially, ostholamide (OSA) was synthesized from osthole (a natural coumarin), characterized by 1H, 13C, DEPT-135 NMR, ESI-MS and FT-IR spectroscopy analysis. OSA was incorporated into Polyhydroxybutyrate (PHB) and Gelatin (GEL), which serve as templates for electro-spun nanofibers. The coating of OSA-PHB-GEL nanofibers with collagen resulted in PHB-GEL-OSA-COL nanofibrous scaffold which mimics extra cellular matrix and serves as an effective biomaterial for tissue engineering applications, especially for wound healing...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28221754/nanoporous-polymer-infiltrated-nanoparticle-films-with-uniform-or-graded-porosity-via-undersaturated-capillary-rise-infiltration
#11
Jyo Lyn Hor, Yijie Jiang, David J Ring, Robert A Riggleman, Kevin T Turner, Daeyeon Lee
In this work, we present the fabrication of nanoporous polymer-infiltrated nanoparticle films (PINFs) with either uniform or graded porosity based on undersaturated capillary rise infiltration (UCaRI) and study the processing-structure-property relationship of these nanoporous PINFs. The UCaRI process involves first generating a bilayer film of randomly packed nanoparticle layer atop a polymer layer, such that the volume of polymer is less than the void volume in the nanoparticle packing. Subsequently, the bilayer film is annealed above the glass transition temperature of the polymer to induce polymer infiltration into the voids of the nanoparticle packing...
February 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/28221382/mechanistic-insights-into-the-photoinduced-charge-carrier-dynamics-of-biobr-cds-nanosheet-heterojunctions-for-photovoltaic-application
#12
Huimin Jia, Beibei Zhang, Weiwei He, Yong Xiang, Zhi Zheng
The rational design of high performance hetero-structure photovoltaic devices requires a full understanding of the photoinduced charge transfer mechanism and kinetics at the interface of heterojunctions. In this paper, we intelligently fabricated p-BiOBr/n-CdS heterojunctions with perfect nanosheet arrays by using a facile successive ionic layer adsorption and reaction and chemical bath deposition methods at low temperature. A BiOBr/CdS heterojunction based solar cell has been fabricated which exhibited enhanced photovoltaic responses...
February 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28221163/controlling-the-growth-of-bi-110-and-bi-111-films-on-an-insulating-substrate
#13
Maciej Jankowski, Daniel Kaminski, Kurt Vergeer, Marta Mirolo, Francesco Carla, A Rijnders, Tjeerd R J Bollmann
We demonstrate the controlled growth of Bi(110) and Bi(111) films on an α-Al<sub>2</sub>O<sub>3</sub>(0001) substrate by surface X-ray diffraction and X-ray reflectivity using synchrotron radiation. At temperatures as low as 40K, unanticipated pseudo-cubic Bi(110) films are grown with thicknesses ranging from a few to tens of nanometers. The roughness at the film-vacuum as well as the film-substrate interface, can be reduced by mild heating, where a crystallographic orientation transition of Bi(110) towards Bi(111) is observed at 400K...
February 21, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28221161/morphology-directed-self-assembly-and-pattern-transfer-from-a-high-molecular-weight-polystyrene-block-poly-dimethylsiloxane-block-copolymer-film
#14
Li-Chen Cheng, Wubin Bai, Eduardo Martin, Kun-Hua Tu, Konstantinos Ntetsikas, George Liontos, Apostolos Avgeropoulos, Caroline Ross
The self-assembly of block copolymers with large feature sizes is inherently challenging as the large kinetic barrier arising from chain entanglement of high molecular weight polymers limits the extent over which long-range ordered microdomains can be achieved. Here, we illustrate the evolution of thin film morphology from a diblock copolymer of polystyrene-block-poly(dimethylsiloxane) exhibiting total number average molecular weight of 123 kg/mol, and demonstrate the formation of layers of well-ordered cylindrical microdomains under appropriate conditions of binary solvent mix ratio, commensurate film thickness, and solvent vapor annealing time...
February 21, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28221026/nanomechanics-of-ph-responsive-drug-loaded-bi-layered-polymer-grafts
#15
Prathima Chandra Nalam, Hyun-Su Lee, Nupur Bhatt, Robert W Carpick, David M Eckmann, Russell J Composto
Stimuli-responsive polymer films play an important role in the development of smart antibacterial coatings. In this study, we consider complementary architectures of polyelectrolyte films including a thin chitosan layer (CH), poly (acrylic acid) (PAA) brushes and a bilayer structure of CH grafted to PAA brushes (CH/PAA) as possible candidates for targeted drug delivery platforms. Atomic force microscopy (AFM) was employed to study the structure-mechanical property relationship for these mono- and bi- layered polymer grafts at pH 7...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28221020/a-scalable-approach-to-construct-free-standing-and-flexible-carbon-networks-for-lithium-sulfur-battery
#16
Mengliu Li, Wandi Wahyudi, Pushpendra Kumar, Feng-Yu Wu, Xiulin Yang, Henan Li, Lain-Jong Li, Jun Ming
Reconstructing carbon nanomaterials such as fullerene, carbon nanotubes (CNTs) and graphene to a hierarchical network structure is useful in exploring their applications. Herein, a sacrificial template method combined with the casting strategy is developed to prepare highly flexible and free-standing carbon film consisting of CNTs, graphene, or both. The scalable size, ultralight and binder-free characteristics, as well as the tunable process/property are promising for their large-scale applications, such as utilizing as interlayers in lithium-sulfur batteries...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28221019/3-3-ethylenedioxy-dipropiononitrile-edpn-as-an-electrolyte-additive-for-4-5v-lini1-3co1-3mn1-3o2-graphite-cells
#17
Chengyun Wang, Le Yu, Weizhen Fan, Jiangwen Liu, Liuzhang Ouyang, Lichun Yang, Min Zhu
3,3'-(ethylenedioxy)dipropiononitrile (EDPN) has been introduced as a novel electrolyte additive to improve the oxidation stability of the conventional carbonate-based electrolyte for LiNi1/3Co1/3Mn1/3O2/graphite pouch batteries cycled under high voltage. Mixing 0.5 wt.% EDPN into the electrolyte greatly improved the capacity retention, from 32.5% to 83.9%, of cells cycled for 100 times in the range 3.0-4.5V with a rate of 1C. The high rate performance (3C and 5C) was also improved, while the cycle performance was similar to that of the cell without EDPN when cycled between 3...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28220992/two-dimensional-semiconductors-grown-by-chemical-vapor-transport
#18
Dake Hu, Guanchen Xu, Lei Xing, Xingxu Yan, Jingyi Wang, Jingying Zheng, Zhixing Lu, Peng Wang, Xiaoqing Pan, Liying Jiao
Developing controlled approaches for synthesizing high-quality two-dimensional (2D) semiconductors is essential for their practical applications in novel electronics. The application of chemical vapor transport (CVT), an old single-crystal growth technique, has been extended from growing 3D crystals to synthesizing 2D atomic layers by tuning the growth kinetics. Both single crystalline individual flakes and continuous films of 1 L MoS2 were successfully obtained with CVT approach at low growth temperatures of 300-600 °C...
February 21, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28220970/in-situ-growth-of-120-cm-2-ch3-nh3-pbbr3-perovskite-crystal-film-on-fto-glass-for-narrowband-photodetectors
#19
Hua-Shang Rao, Wen-Guang Li, Bai-Xue Chen, Dai-Bin Kuang, Cheng-Yong Su
Organometal trihalide perovskites have been attracting intense attention due to their enthralling optoelectric characteristics. Thus far, most applications focus on polycrystalline perovskite, which however, is overshadowed by single crystal perovskite with superior properties such as low trap density, high mobility, and long carrier diffusion length. In spite of the inherent advantages and significant optoelectronic applications in solar cells and photodetectors, the fabrication of large-area laminar perovskite single crystals is challenging...
February 21, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28220861/electrically-tunable-metasurface-based-on-mie-type-dielectric-resonators
#20
Zhaoxian Su, Qian Zhao, Kun Song, Xiaopeng Zhao, Jianbo Yin
In this paper, we have designed a metasurface based on electrically tunable Mie-type resonators and theoretically demonstrated its tunable response to electromagnetic waves with varying frequency. The metasurface consists of disk-like ferroelectric resonators arrayed on a metal film and the upper surface of resonators is covered by ion gel film which is transparent for incident electromagnetic wave. Using the metal film and ion gel film as electrodes, the permittivity of the resonators can be adjusted by an external electric field and, as a result, the reflection phase of the resonators can be dynamically adjusted in a relatively wide range...
February 21, 2017: Scientific Reports
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