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https://www.readbyqxmd.com/read/29356323/layered-aggregation-with-steric-effect-morphology-homogeneous-semiconductor-mos2-as-an-alternative-2d-probe-for-visual-immunoassay
#1
Bang Lin Li, Li Yu Peng, Hao Lin Zou, Ling Jie Li, Hong Qun Luo, Nian Bing Li
Liquid-phase exfoliation routes unavoidably generate 2D nanostructures with inhomogeneous morphologies. Herein, thickness-dependent sorting of exfoliated nanostructures is achieved via a treatment of differential-zone centrifugation in the surfactant aqueous phase. With this approach, homogeneous MoS2 nanosheets are obtained, and due to the intrinsic semiconducting characteristics, those 2D nanosheets are endowed with desired optical properties, rivaling classic gold nanoparticles in sensing applications. Furthermore, MoS2 nanosheets with high uniformity and chemical inertness are coupled with proteins, exhibiting high performance in stability and anti-interferences for bioanalysis...
January 22, 2018: Small
https://www.readbyqxmd.com/read/29355860/interface-engineered-in-situ-anchoring-of-co9s8-nanoparticles-into-a-multiple-doped-carbon-matrix-highly-efficient-zinc-air-batteries
#2
Yang Li, Wei Zhou, Juncai Dong, Yun Luo, Pengfei An, Juan Liu, Xin Wu, Guilan Xu, Huabin Zhang, Jian Zhang
Interface modification is an effective and promising route for developing functional electrocatalysts. However, researchers have not created a reliable method to optimize the interfaces of components existing in electrocatalysts, although it is very crucial for the technological development of high-performance electrodes. Here, we develop a strategy aiming at the in situ anchorage of Co9S8 nanoparticles into a nitrogen (N), sulfur (S) co-implanted three-dimensional carbon matrix (Co9S8@NSCM) as a highly active and durable nonprecious metal electrocatalyst for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline medium...
January 22, 2018: Nanoscale
https://www.readbyqxmd.com/read/29354474/long-head-of-the-biceps-as-a-suitable-available-local-tissue-autograft-for-superior-capsular-reconstruction-the-chinese-way
#3
Achilleas Boutsiadis, Shiyi Chen, Chunyan Jiang, Hubert Lenoir, Philippe Delsol, Johannes Barth
Massive irreparable rotator cuff tears remain a challenging condition during daily clinical practice. Irreversible fatty infiltration of muscles and excessive chronic retraction of tendons predispose to high failure rates of their surgical treatment. Superior capsular reconstruction with either fascia lata autograft or a dermal allograft patch is a newly described solution that could prevent superior humeral head migration and restore the anteroposterior shoulder muscle force couples. The purpose of this article is to propose a technical modification of superior capsular reconstruction using long head of the biceps tendon autograft...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29354424/the-purse-string-procedure-for-recurrent-anterior-glenohumeral-instability-a-simple-technique-to-achieve-bankart-repair-capsular-shift-and-a-good-labral-bumper
#4
Luis Gerardo Natera, Paolo Consigliere, Caroline Witney-Lagen, Juan Bruguera, Giuseppe Sforza, Ehud Atoun, Ofer Levy
Failure of arthroscopic techniques in cases of recurrent anterior glenohumeral instability may result from inadequate treatment of capsular injury. The use of few anchors has been cited as a cause of failure in arthroscopic stabilization techniques. This applies to the use of the suture anchors as spot-welding points in conventional techniques. It has been shown that horizontal mattress suture techniques restore better labral height and anatomy than simple suture techniques in the repair of acute Bankart lesions...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29353738/neuroticism-schizotypy-and-scale-anchors-influence-eye-movement-behaviour-in-the-visual-exploration-of-abstract-art-an-exploratory-study
#5
Alison Simpson, Nicole A Thomas
The same piece of artwork can attract both admiration and rejection from different people. One potential explanation for this effect is individual differences in perceptual biases, which influence the way in which we see different aspects of the same image. We explored the relationship between individual differences (i.e., personality) and eye movements for examinations of abstract art. Images were presented for 5000ms, after which participants judged aesthetic appeal and perceived value using visual analogue scales...
January 16, 2018: Acta Psychologica
https://www.readbyqxmd.com/read/29350621/electrodeposited-binder-free-nico2o4-carbon-nanofiber-as-high-performance-anode-for-lithium-ion-batteries
#6
Jie Zhang, Ruixia Chu, Yanli Chen, Heng Jiang, Ying Zhang, Nay Ming Huang, Hang Guo
Binder-free nickle cobaltite on carbon nanofiber (NiCo2O4@CNF) anode for lithium ion batteries was prepared via a two-step procedure of electrospinning and electrodeposition. The CNF was obtained by annealing the electrospun poly-acrylonitrile (PAN) in the nitrogen (N2). The NiCo2O4 nanostructures were then grown on the CNF by electrodeposition, followed by annealing in the air. Experimental results showed vertically aligned NiCo2O4 nanosheets were uniformly grown on the surface of CNF, forming an interconnected network...
January 19, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29349981/-clinical-results-in-early-and-mid-term-of-using-the-s-rom-femoral-stem-in-revision
#7
Shang Piao, Yong-Gang Zhou, Yin-Qiao Du, Hai-Yang Ma, Jing-Yang Sun, Zhi-Sen Gao, Ya-Wen Peng, Wen-Ming Wu
OBJECTIVE: To investigate and the clinical effect of S-ROM modular stem in femur reconstruction in hip revision arthroplasty. METHODS: From January 2008 to January 2016, 21 patients received revision hip arthroplasties using S-ROM stems. There were 5 males and 16 females with an average of 48.33 years old(range, 29 to 73 years old). There were 13 cases caused by aseptic loosening, 4 cases by infection, 2 cases by nonunion of sub-tuberosity osteotomy, 1 case for repeated dislocation, 1 case for traumatic great trochanter fracture...
April 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29349979/-capsular-enhanced-repair-with-suture-anchors-in-bipolar-hemiarthroplasty-for-the-treatment-of-femoral-neck-fractures-in-elderly-patients
#8
Bo Shi, Ming-Rui Xie, Zong-Yuan Li
OBJECTIVE: To evaluate the efficacy of capsular-enhanced repair with suture anchors in bipolar hemiarthroplasty for the treatment of femoral neck fractures in elderly patients. METHODS: A retrospective study was designed. From June 2009 to June 2016, 53 senile patients (54 hips)with femoral neck fracture were treated operatively in Mianyang central hospital (Sichuan, China). There were 21 males and 32 females, ranging in age from 80 to 97.5 years old (mean, 84.7 years old)...
April 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29347877/part-set-cueing-impairment-facilitation-in-semantic-memory
#9
Matthew R Kelley, Sushmeena A Parihar
The present study explored the influence of part-set cues in semantic memory using tests of "free" recall, reconstruction of order, and serial recall. Nine distinct categories of information were used (e.g., Zodiac signs, Harry Potter books, Star Wars films, planets). The results showed part-set cueing impairment for all three "free" recall sets, whereas part-set cueing facilitation was evident for five of the six ordered sets. Generally, the present results parallel those often observed across episodic tasks, which could indicate that similar mechanisms contribute to part-set cueing effects in both episodic and semantic memory...
January 19, 2018: Memory
https://www.readbyqxmd.com/read/29347811/orientation-shape-coupling-between-liquid-crystal-and-membrane-through-the-anchoring-effect
#10
Shun Okushima, Toshihiro Kawakatsu
We perform a series of Monte Carlo simulations on an interface between a liquid crystal (LC) material in isotropic phase in its bulk and a surfactant membrane. These two objects are simulated using coarse-grained molecular models. We estimate physical properties of the membrane such as the interfacial tension and the bending rigidity, focusing on the anchoring effects of the membrane on the LC. According to our simulation results, when the strength of the homeotropic anchoring denoted by the anchoring parameter ξ is increased, the interfacial tension decreases and the bending rigidity first increases in ξ<ξ_{m}, and it then decreases in ξ_{m}<ξ...
November 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347260/enhancement-of-polar-anchoring-strength-in-a-graphene-nematic-suspension-and-its-effect-on-nematic-electro-optic-switching
#11
Rajratan Basu
A small quantity of monolayer graphene flakes is doped in a nematic liquid crystal (LC), and the effective polar anchoring strength coefficient between the LC and the alignment substrate is found to increase by an order of magnitude. The hexagonal pattern of graphene can interact with the LC's benzene rings via π-π electron stacking, enabling the LC to anchor to the graphene surface homogeneously (i.e., planar anchoring). When the LC cell is filled with the graphene-doped LC, some graphene flakes are preferentially attached to the alignment layer and modify the substrate's anchoring property...
July 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347259/electro-osmosis-of-nematic-liquid-crystals-under-weak-anchoring-and-second-order-surface-effects
#12
Antarip Poddar, Jayabrata Dhar, Suman Chakraborty
Advent of nematic liquid crystal flows has attracted renewed attention in view of microfluidic transport phenomena. Among various transport processes, electro-osmosis stands as one of the efficient flow actuation mechanisms through narrow confinements. In the present study, we explore the electrically actuated flow of an ordered nematic fluid with ionic inclusions, taking into account the influences from surface-induced elasticity and electrical double layer (EDL) phenomena. Toward this, we devise the coupled flow governing equations from fundamental free-energy analysis, considering the contributions from first- and second-order elastic, dielectric, flexoelectric, charged surface polarization, ionic and entropic energies...
July 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347110/influence-of-a-dispersion-of-magnetic-and-nonmagnetic-nanoparticles-on-the-magnetic-fredericksz-transition-of-the-liquid-crystal-5cb
#13
Ahmed Mouhli, Habib Ayeb, Tahar Othman, Jérôme Fresnais, Vincent Dupuis, Ian R Nemitz, Joel S Pendery, Charles Rosenblatt, Olivier Sandre, Emmanuelle Lacaze
A long time ago, Brochard and de Gennes predicted the possibility of significantly decreasing the critical magnetic field of the Fredericksz transition (the magnetic Fredericksz threshold) in a mixture of nematic liquid crystals and ferromagnetic particles, the so-called ferronematics. This phenomenon is rarely measured to be large, due to soft homeotropic anchoring induced at the nanoparticle surface. Here we present an optical study of the magnetic Fredericksz transition combined with a light scattering study of the classical nematic liquid crystal: the pentylcyanobiphenyl (5CB), doped with 6 nm diameter magnetic and nonmagnetic nanoparticles...
July 2017: Physical Review. E
https://www.readbyqxmd.com/read/29345720/effects-of-nicotine-administration-in-rats-on-mmp2-and-vegf-levels-in-periodontal-membrane
#14
Buşra Deveci, Buket Ayna, İbrahim Halil Tacir, Engin Deveci, Mehmet Cudi Tuncer, Ayşegül Pala
Nicotine is associated with increased incidence of periodontal disease and poor response to therapy. This article aimed at identifying the expression of Matrix metalloproteinases-2 (MMP2) and Vascular endothelial growth factor (VEGF) proteins on extracellular matrix, fibrous distribution and angiogenetic development in periodontitis caused by nicotine effects on periodontal membrane. In this experimental study, the groups were divided into nicotine and control groups. While the nicotine groups in rats (n=6) were administered 2mg/kg Nicotine sulphate for 28 days, the control group in rats (n=6) were only administered 1,5 ml physiologic saline solution subcutaneously for 28 days...
January 18, 2018: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29345504/development-of-the-hoosglobal-to-assess-patient-reported-outcomes-in-patients-undergoing-hip-preservation-procedures
#15
Cale A Jacobs, Michael R Peabody, Stephen T Duncan, Ryan D Muchow, Ryan M Nunley, John C Clohisy, Paul E Beaule, Young Jo Kim, Michael B Millis, David A Podeszwa, Perry L Schoenecker, Rafael J Sierra, Ernest L Sink, Daniel J Sucato, Robert T Trousdale, Ira Zaltz
BACKGROUND: The creation of a single patient-reported outcome (PRO) platform validated across hip preservation, osteoarthritis (OA), and total hip arthroplasty (THA) populations may reduce barriers and streamline the routine collection of PROs in clinical practice. As such, the purpose of this study was to determine if augmenting the Hip disability and Osteoarthritis Outcome Score-Joint Replacement (HOOS, JR) with additional HOOS questions would result in a PRO platform that could be used across a wider spectrum of hip patient populations...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29344563/the-use-of-fully-covered-self-expanding-metallic-stents-for-intraprocedural-management-of-post-sphincterotomy-perforations-a-single-center-study-with-video
#16
Guru Trikudanathan, Patrick Hoversten, Mustafa A Arain, Rajeev Attam, Martin L Freeman, Stuart K Amateau
Background and study aims : Management of post-sphincterotomy perforations is variable, with some patients managed conservatively and other requiring surgery. Fully-covered self-expanding metal stents (FCSEMs) have been used in the past, but data is limited. The aim of this study was to report the clinical characteristics and outcomes following placement of anchored FCSEMSs for the immediate management of post-sphincterotomy perforation. Patients and methods : All patients undergoing an ERCP procedure between June 2011 and December 2015 at our institution were reviewed for post-sphincterotomy perforation...
January 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29341608/molecular-dynamics-pinpoint-the-global-fluorine-effect-in-balanoids-binding-to-pkc%C3%AE%C2%B5-and-pka
#17
Ari Hardianto, Fei Liu, Shoba Ranganathan
(-)-Balanol is an ATP mimic that inhibits protein kinase C (PKC) isozymes and cAMP-dependent protein kinase (PKA) with little selectivity. While PKA is known as a tumour promoter, PKC isozymes can be tumour promoters or suppressors. In particular, PKCε is frequently involved in tumorigenesis and a potential target for anticancer drugs. We recently reported that stereospecific fluorination of balanol yielded a balanoid with enhanced selectivity for PKCε over other PKC isozymes and PKA, although the global fluorine effect behind the selectivity enhancement is not fully understood...
January 17, 2018: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/29340716/congenital-blindness-limits-allocentric-to-egocentric-switching-ability
#18
Gennaro Ruggiero, Francesco Ruotolo, Tina Iachini
Many everyday spatial activities require the cooperation or switching between egocentric (subject-to-object) and allocentric (object-to-object) spatial representations. The literature on blind people has reported that the lack of vision (congenital blindness) may limit the capacity to represent allocentric spatial information. However, research has mainly focused on the selective involvement of egocentric or allocentric representations, not the switching between them. Here we investigated the effect of visual deprivation on the ability to switch between spatial frames of reference...
January 16, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29336672/internal-cs-inhibits-root-elongation-in-rice
#19
Sonia Mohamed, Hervé Sentenac, Emmanuel Guiderdoni, Anne-Aliénor Véry, Manuel Nieves-Cordones
The root system anchors the plant to the soil and contributes to plant autotrophy by taking up nutrients and water. In relation with this nutritional function, root development is largely impacted by availability of nutrients and water. Due to human activity, plants, in particular crops, can also be exposed to pollutants which can be absorbed and incorporated into the food chain. Cesium in soils is present at non-toxic concentrations for the plant (micromolar or less), even in soils highly polluted with radioactive cesium due to nuclear accidents...
January 16, 2018: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/29336461/new-di-anchoring-a-%C3%AF-d-%C3%AF-a-configured-organic-chromophores-for-dssc-application-sensitization-and-co-sensitization-studies
#20
Praveen Naik, Rui Su, Mohamed R Elmorsy, Ahmed El-Shafei, Airody Vasudeva Adhikari
Herein, we report the design and synthesis of three new un-symmetrical metal-free carbazole based organic dyes, E1-3 with A-π-D-π-A architecture, as effective di-anchoring sensitizers in DSSCs. The new entities comprise carbazole as a donor scaffold connected to three different units, viz. cyano acetic acid, 2,4-thiazolidinedione and barbituric acid as acceptor/anchoring units via vinylene and phenylene as π-spacers at 3- and 6-positions of the carbazole ring, respectively. Photophysical, electrochemical and theoretical studies were carried out in order to assess their feasibility as active sensitizers...
January 16, 2018: Photochemical & Photobiological Sciences
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