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https://www.readbyqxmd.com/read/28208486/coherent-libration-to-coherent-rotational-dynamics-via-chimeralike-states-and-clustering-in-a-josephson-junction-array
#1
Arindam Mishra, Suman Saha, Chittaranjan Hens, Prodyot K Roy, Mridul Bose, Patrick Louodop, Hilda A Cerdeira, Syamal K Dana
An array of excitable Josephson junctions under a global mean-field interaction and a common periodic forcing shows the emergence of two important classes of coherent dynamics, librational and rotational motion, in the weaker and stronger coupling limits, respectively, with transitions to chimeralike states and clustered states in the intermediate coupling range. In this numerical study, we use the Kuramoto complex order parameter and introduce two measures, a libration index and a clustering index, to characterize the dynamical regimes and their transitions and locate them in a parameter plane...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28199752/effect-of-transversus-abdominis-plane-block-in-combination-with-general-anesthesia-on-perioperative-opioid-consumption-hemodynamics-and-recovery-in-living-liver-donors-the-prospective-double-blinded-randomized-study
#2
Mehmet Ali Erdogan, Ulku Ozgul, Muharrem Uçar, Rıdvan Yalin, Yusuf Ziya Colak, Cemil Çolak, Huseyin Ilksen Toprak
BACKGROUND: Transversus abdominis plane (TAP) block provides effective postoperative analgesia after abdominal surgeries. It can be also a useful strategy to reduce perioperative opioid consumption, support intraoperative hemodynamic stability and promote early recovery from anesthesia. The aim of this prospective randomized double-blind study was to assess the effect of subcostal TAP blocks on perioperative opioid consumption, hemodynamic and recovery time in living liver donors. METODS: The prospective, double-blinded, randomized controlled study was conducted with 49 living liver donors, aged 18-65 years, who were scheduled to undergo right hepatectomy...
February 15, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28199748/daylight-photodynamic-therapy-with-methylene-blue-in-plane-warts-a-randomized-double-blind-placebo-controlled-study
#3
G Fathy, M K Asaad, H M Rashid
Photodynamic therapy (PDT) is a technique that utilizes reactive oxygen species produced by a non-toxic dye or photosensitizer molecule in the presence of low intensity visible light to kill mammalian or microbial cells ((1)) . The advantages of PDT are numerous, it is a safe, non-invasive technique which yields effective therapeutic results ((2)) . Photodynamic therapy is not free of adverse effects. The most common one is pain during illumination. With the use of portable light sources to optimize the procedure and facilitate outpatient treatment, the concept of ambulatory PDT has emerged...
February 15, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28199105/crystalline-graphdiyne-nanosheets-produced-at-a-gas-liquid-or-liquid-liquid-interface
#4
Ryota Matsuoka, Ryota Sakamoto, Ken Hoshiko, Sono Sasaki, Hiroyasu Masunaga, Kosuke Nagashio, Hiroshi Nishihara
Synthetic two-dimensional polymers, or bottom-up nanosheets, are ultrathin polymeric frameworks with in-plane periodicity. They can be synthesized in a direct, bottom-up fashion using atomic, ionic, or molecular components. However, few are based on carbon-carbon bond formation, which means that there is a potential new field of investigation into these fundamentally important chemical bonds. Here, we describe the bottom-up synthesis of all-carbon, π-conjugated graphdiyne nanosheets. A liquid/liquid interfacial protocol involves layering a dichloromethane solution of hexaethynylbenzene on an aqueous layer containing a copper catalyst at room temperature...
February 15, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28184270/randomized-comparison-of-popliteal-sciatic-perineural-catheter-tip-migration-and-dislocation-in-a-cadaver-model-using-two-catheter-designs
#5
Lauren Steffel, Steven K Howard, Lindsay Borg, Edward R Mariano, Jody C Leng, T Edward Kim
BACKGROUND: New catheter-over-needle (CON) technology for continuous peripheral nerve blockade has emerged, but its effect on the risk of perineural catheter tip dislocation is unknown. Less flexible catheters may be more likely to migrate away from the nerve with simulated patient movement. In the present study, we evaluated catheter tip migration between CON catheters and traditional catheter-through-needle (CTN) catheters during ultrasound-guided short-axis in-plane (SAX-IP) insertion...
February 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28178784/correlatively-dependent-lattice-and-electronic-structural-evolutions-in-compressed-monolayer-tungsten-disulfide
#6
Bo Han, Fangfei Li, Liang Li, Xiaoli Huang, Yuanbo Gong, Xinpeng Fu, Hanxue Gao, Qiang Zhou, Tian Cui
Transition-metal dichalcogenides (TMDs) are promising materials for optoelectronic devices. Their lattice and electronic structural evolutions under high strain conditions and their relations remain open questions. We exert pressure on WS2 monolayers on different substrates, namely, Si/SiO2 substrate and diamond anvil surface up to ∼25 GPa. Structural distortions in various degree are disclosed based on the emergence of Raman-inactive B mode. Splits of out-of-plane B and A1' modes are only observed on Si/SiO2 substrate due to extra strain imported from volume decrease in Si and corrugation of SiO2 surface, and its photoluminescence (PL) quenches quickly because of decreased K-K transition by conspicuous distortion of Brillouin zone...
February 13, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28177026/a-co-monolayer-first-principles-design-of-a-new-direct-band-gap-semiconductor-with-excellent-mechanical-properties
#7
Zi-Wei Teng, Chun-Sheng Liu, Xiao-Hong Yan
Group V monolayers, e.g., nitrogene, phosphorene, arsenene, and antimonene have recently emerged as attractive candidates for electronic and optoelectronic applications. However, these pristine monolayers are not able to possess direct band gaps suitable for ultraviolet-blue photoresponse. First-principles calculations show that the Pmma-CO monolayer has a direct band gap of 2.4 eV, and predict that the system has a good stability. Unlike an easy direct-indirect gap transition under small strains in phosphorene, the direct band gap feature of Pmma-CO is maintained under a strain up to 12%...
February 8, 2017: Nanoscale
https://www.readbyqxmd.com/read/28164055/proximal-tibial-epiphysis-injury-flexion-type-salter-harris-type-1
#8
Pratik Israni, Mangesh Panat
INTRODUCTION: Fractures of the proximal tibial epiphysis rare. It has been estimated that fractures of the upper tibial epiphysis account for 0.5-3.1% of all epiphyseal injuries. Who had no neurovascular deficit, with fixed extension deformity at the left knee was treated early with closed reduction techniques. CASE REPORT: We present a case of a 16-year-old boy who while playing cricket on the road was hit by a car. The patient presented in emergency room with extremely swollen knee and soft tissue swelling (hemarthrosis), he was unable to lift his leg actively due to severe pain because of hamstrings spasm, and he had no wound over his left knee and had no other associated injuries...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28161602/characterizing-mandibular-growth-using-three-dimensional-imaging-techniques-and-anatomic-landmarks
#9
Michael P Kelly, Houri K Vorperian, Yuan Wang, Katelyn K Tillman, Helen M Werner, Moo K Chung, Lindell R Gentry
OBJECTIVE: To provide quantitative data on the multi-planar growth of the mandible, this study derived accurate linear and angular mandible measurements using landmarks on three dimensional (3D) mandible models. This novel method was used to quantify 3D mandibular growth and characterize the emergence of sexual dimorphism. DESIGN: Cross-sectional and longitudinal imaging data were obtained from a retrospective computed tomography (CT) database for 51 typically developing individuals between the ages of one and nineteen years...
January 23, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28157314/molecular-chessboard-assemblies-sorted-by-site-specific-interactions-of-out-of-plane-d-orbitals-with-a-semimetal-template
#10
Aneliia Wäckerlin, Shadi Fatayer, Thomas Nijs, Sylwia Nowakowska, S Fatemeh Mousavi, Olha Popova, Aisha Ahsan, Thomas A Jung, Christian Wäckerlin
We show that highly ordered 2D chessboard arrays consisting of a periodic arrangement of two different molecules can be obtained by the self-assembly of unsubstituted metal-phthalocyanines (metal-Pcs) on a suitable substrate serving as the template. Specifically, CuPc:MnPc and CuPc:CoPc mixtures sort into highly ordered Cu:Mn and Cu:Co chessboard arrays on the square p(10×10) reconstruction of bismuth on Cu(100). Such created bimolecular chessboard assemblies emerge from the site-specific interactions between the central transition-metal ions and the periodically reconstructed substrate...
February 3, 2017: Nano Letters
https://www.readbyqxmd.com/read/28157294/molecular-alignment-and-electronic-structure-of-n-n-dibutyl-3-4-9-10-perylene-tetracarboxylic-diimide-molecules-on-mos2-surfaces
#11
Arramel, Xinmao Yin, Qixing Wang, Yu J Zheng, Zhibo Song, Mohammad H Bin Hassan, Dianyu Qi, Jishan Wu, Andrivo Rusydi, Andrew T S Wee
The molecular orientation of organic semiconductors on a solid surface could be an indispensable factor to determine the electrical performance of organic-based devices. Despite its fundamental prominence, a clear description of the emergent two-dimensional layered material-organic interface is not fully understood yet. In this study, we reveal the molecular alignment and electronic structure of thermally deposited N,N'-dibutyl-3,4,9,10-perylene-dicarboximide (PTCDI-C4) molecules on natural molybdenum disulfide (MoS2) using near-edge X-ray absorption fine structure spectroscopy (NEXAFS)...
February 3, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28157087/interface-thermal-conductance-of-van-der-waals-monolayers-on-amorphous-substrates
#12
Gabriela Correa, Cameron Foss, Zlatan Aksamija
Heterostructures based on atomic monolayers are emerging as leading materials for future energy efficient and multifunctional electronics. Due to the single atom thickness of monolayers, their properties are strongly affected by interactions with the external environment. We develop a model for interface thermal conductance (ITC) in an atomic monolayer van der Waals (vdW) bonded to a disordered substrate. Graphene on SiO$_2$ is initially used in our model and contrasted against available experimental data; the model is then applied to monolayer MoS$_2$ on SiO$_2$ substrate...
February 3, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28140601/current-induced-generation-and-synchronous-motion-of-highly-packed-coupled-chiral-domain-walls
#13
Rafael Pérez Del Real, Victor Raposo, Eduardo Martinez, Masamitsu Hayashi
Chiral domain walls of Neel type emerge in heterostructures that include heavy metal (HM) and ferromagnetic metal (FM) layers owing to the Dzyaloshinskii-Moriya (DM) interaction at the HM/FM interface. In developing storage class memories based on the current induced motion of chiral domain walls, it remains to be seen how dense such domain walls can be packed together. Here we show that a universal short range repulsion that scales with the strength of the DM interaction exists among chiral domain walls. The distance between the two walls can be reduced with application of out of plane field, allowing formation of coupled domain walls...
January 31, 2017: Nano Letters
https://www.readbyqxmd.com/read/28131608/anatomic-relationship-and-imaging-relevance-of-the-perforating-branches-of-the-peroneal-vessels-to-the-anterior-talofibular-ligament
#14
Yara Younan, Matthew Uriell, Walter Carpenter, Monica Umpierrez, Aparna Kakarala, Jean Jose, Douglas D Robertson, Ty K Subhawong, Adam Daniel Singer
BACKGROUND: Patients frequently present to the emergency department after ankle injuries, and the anterior talofibular ligament (ATFL) is commonly damaged. Musculoskeletal ultrasound (US) can help to make a rapid diagnosis. There is a paucity of literature describing techniques to image the ATFL with US, and the complex ankle anatomy and potential pitfalls make imaging challenging. OBJECTIVE: Our aim was to estimate prevalence of perforating branches (PBs) of the peroneal vessels and determine their most frequent position relative to the ATFL...
January 25, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28123969/real-time-magnetic-resonance-imaging-of-deep-venous-flow-during-muscular-exercise-preliminary-experience
#15
Arun Antony Joseph, Klaus-Dietmar Merboldt, Dirk Voit, Johannes Dahm, Jens Frahm
BACKGROUND: The accurate assessment of peripheral venous flow is important for the early diagnosis and treatment of disorders such as deep-vein thrombosis (DVT) which is a major cause of post-thrombotic syndrome or even death due to pulmonary embolism. The aim of this work is to quantitatively determine blood flow in deep veins during rest and muscular exercise using a novel real-time magnetic resonance imaging (MRI) method for velocity-encoded phase-contrast (PC) MRI at high spatiotemporal resolution...
December 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28103469/transitions-of-postural-coordination-as-a-function-of-frequency-of-the-moving-support-platform
#16
Aviroop Dutt-Mazumder, Karl Newell
This study was set-up to investigate the multi-segmental organization of human postural control in a dynamic balance task. The focus was on the coupling between the center of mass (CoM) and center of pressure (CoP) as a candidate collective variable that supports maintaining balance on a sinusoidal oscillating platform in the medial-lateral (ML) plane and was continuously scaled up and then down across a frequency range from 0.2Hz to 1.2Hz. The CoM-CoP coordination changed from in-phase to anti-phase and anti-phase to in-phase at a critical frequency (∼0...
January 16, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28102912/different-spatio-temporal-eeg-features-drive-the-successful-decoding-of-binaural-and-monaural-cues-for-sound-localization
#17
Adam Bednar, Francis M Boland, Edmund C Lalor
The human ability to localize sound is essential for monitoring the environment and helps us to analyze complex auditory scenes. Although the acoustic cues mediating sound localization have been established, it remains unknown how these cues are represented in human cortex. In particular, it is still a point of contention whether binaural and monaural cues are processed by the same or distinct cortical networks. In this study, participants listened to a sequence of auditory stimuli from different spatial locations while we recorded their neural activity using electroencephalography (EEG)...
January 19, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28101880/family-emergency-plan-and-preparedness-among-medical-practitioners-in-zaria-nigeria
#18
Jerry Godfrey Makama, Istifanus Anekoson Joshua, Elizabeth Jerry Makama
BACKGROUND: There has been an increase in the incidence of disasters in many parts of the world. Similarly, Nigeria has witnessed a recent increase of man-made disaster events such as plane crash, fire incidents, flood, and building collapse, including bomb blast orchestrated by terrorists that often create emergency situations. Therefore, the aim of the study was to evaluate family emergency plan and preparedness among medical practitioners in Zaria. METHODS: This was a cross-sectional descriptive study (May-July, 2013) of medical practitioners in Zaria, Nigeria...
November 2016: Journal of Emergency Management: JEM
https://www.readbyqxmd.com/read/28049061/role-of-computational-efficiency-indices-and-pose-clustering-in-effective-decision-making-an-example-of-annulated-furanones-in-pf-dhfr-space
#19
Manoj Kumar, Tanpreet Kaur, Anuj Sharma
In the present report, the role of computationally estimated efficiency indices and pose clustering has been demonstrated in effective decision making, resource management and chemical prioritization. As an example, 720 annulated furanones from six different scaffold classes were computationally docked against Pf-DHFR active site using AutoDock 4.2. Many trends were established by navigating efficiency indices (BEI and SEI) in 2D planes. These trends were then explained by comparing interaction profiles of docked poses with that of known actives/inhibitors...
December 23, 2016: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28047847/we-h-207a-01-computational-evaluation-of-high-resolution-18f-positron-imaging-using-radioluminescence-microscopy-with-lu2o3-eu-thin-film-scintillator
#20
Q Wang, D Sengupta, G Pratx
PURPOSE: Radioluminescence microscopy, an emerging and powerful tool for high resolution beta imaging, has been applied to molecular imaging of cellular metabolism to understand tumor biology. A novel thin-film (10 µm thickness) scintillator made of Lu2 O3 : Eu has been developed to enhance the system performance. However the advances of radioluminescence imaging with Lu2 O3 scintillator compared with that using conventional scintillator have not been explored theoretically to date. To validate the advantages of the thin-film scintillator, this study uses a novel computational simulation framework to evaluate the performance of radioluminescence microscopy using both conventional and thin-film scintillators...
June 2016: Medical Physics
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