bluuebunny/crossref_metadata_2025_split huggingface dataset:
Common Data Elements for Concussion in Tertiary Care: Phase One in Ontario
Authors: Hunt Cindy , Michalak Alicja , Ouchterlony Donna , Marshall Shawn , Masanic Cheryl , Vaidyanath Chantal , Bhalerao Shree , Cusimano Michael D. , Quon Deanna , Fischer Lisa K. , Baker Andrew 
Published: September 2017

AbstractBackground:Standardized data collection for traumatic brain injury (TBI) (including concussion) using common data elements (CDEs) has strengthened clinical care and research capacity in the United States and Europe. Currently, Ontario healthcare providers do not collect uniform data on adult patients diagnosed with concussion.Objective:The Ontario Concussion Care Strategy (OCCS) is a collaborative network of multidisciplinary healthcare providers, brain injury advocacy groups, patient representatives, and researchers with a shared vision to improve concussion care across the province, starting with the collection of standardized data.Methods:The International Framework of Functioning Disability and Health was selected as the conceptual framework to inform the selection of CDEs. The CDEs recommended by the OCCS were identified using key literature, including the National Institute of Neurological Disorders and Stroke–Zurich Consensus Statements for concussion in sport and the Ontario Neurotrauma Foundation Concussion/mTBI clinical guidelines.Results:The OCCS has recommended and piloted CDEs for Ontario that are readily available at no cost, clinically relevant, patient friendly, easy to interpret, and recognized by the international scientific community.Conclusions:The implementation of CDEs can help to shift Ontario toward internationally recognized standard data collection, and in so doing yield a more comprehensive evidence-based approach to care while also supporting rigorous research.
CHU IDENTITY AS SEEN FROM ITS MANUSCRIPTS: A REEVALUATION
Authors: Pines Yuri 
Published: September 2017

AbstractThe question of Chu's cultural affinity perplexed—and continues to perplex—traditional and modern scholars. Some view it as the cultural Other of the Zhou world, while others believe that this state fundamentally belonged to the Zhou cultural sphere. The difficulty in assessing Chu's cultural trajectory derives in not a small measure from the bias of traditional sources, all of which were composed or compiled in the northern and eastern parts of the Zhou world. Yet recently discovered Chu historical manuscripts allow us to overcome this “northeastern bias.” How much do the newly available texts display—if at all—a distinct Chu identity? Do they present an alternative version of Chu history? Who were their audience? By answering these questions I hope both to revisit the question of Chu's relations to the Zhou (“Chinese”) world, and to put forward novel understandings of the usages of history writing in preimperial China.
Morphological evolution of microscopic dewetting droplets with slip
Authors: Chan Tak Shing , McGraw Joshua D. , Salez Thomas , Seemann Ralf , Brinkmann Martin 
Published: September 2017

We investigate the dewetting of a droplet on a smooth horizontal solid surface for different slip lengths and equilibrium contact angles. Specifically, we solve for the axisymmetric Stokes flow using the boundary element method with (i) the Navier-slip boundary condition at the solid/liquid boundary and (ii) a time-independent equilibrium contact angle at the contact line. When decreasing the rescaled slip length $\tilde{b}$ with respect to the initial central height of the droplet, the typical non-sphericity of a droplet first increases, reaches a maximum at a characteristic rescaled slip length $\tilde{b}_{m}\approx O(0.1{-}1)$ and then decreases. Regarding different equilibrium contact angles, two universal rescalings are proposed to describe the behaviour of the non-sphericity for rescaled slip lengths larger or smaller than $\tilde{b}_{m}$. Around $\tilde{b}_{m}$, the early time evolution of the profiles at the rim can be described by similarity solutions. The results are explained in terms of the structure of the flow field governed by different dissipation channels: elongational flows for $\tilde{b}\gg \tilde{b}_{m}$, friction at the substrate for $\tilde{b}\approx \tilde{b}_{m}$ and shear flows for $\tilde{b}\ll \tilde{b}_{m}$. Following the changes between these dominant dissipation mechanisms, our study indicates a crossover to the quasistatic regime when $\tilde{b}$ is many orders of magnitude smaller than $\tilde{b}_{m}$.
Statistics and structure of spanwise rotating turbulent channel flow at moderate Reynolds numbers
Authors: Brethouwer Geert 
Published: September 2017

A study of fully developed plane turbulent channel flow subject to spanwise system rotation through direct numerical simulations is presented. In order to study both the influence of the Reynolds number and spanwise rotation on channel flow, the Reynolds number $Re=U_{b}h/\unicode[STIX]{x1D708}$ is varied from a low 3000 to a moderate 31 600 and the rotation number $Ro=2\unicode[STIX]{x1D6FA}h/U_{b}$ is varied from 0 to 2.7, where $U_{b}$ is the mean bulk velocity, $h$ the channel half-gap, $\unicode[STIX]{x1D708}$ the viscosity and $\unicode[STIX]{x1D6FA}$ the system rotation rate. The mean streamwise velocity profile displays also at higher $Re$ a characteristic linear part with a slope near to $2\unicode[STIX]{x1D6FA}$, and a corresponding linear part in the profiles of the production and dissipation rate of turbulent kinetic energy appears. With increasing $Ro$, a distinct unstable side with large spanwise and wall-normal Reynolds stresses and a stable side with much weaker turbulence develops in the channel. The flow starts to relaminarize on the stable side of the channel and persisting turbulent–laminar patterns appear at higher $Re$. If $Ro$ is further increased, the flow on the stable side becomes laminar-like while at yet higher $Ro$ the whole flow relaminarizes, although the calm periods might be disrupted by repeating bursts of turbulence, as explained by Brethouwer (Phys. Rev. Fluids, vol. 1, 2016, 054404). The influence of the Reynolds number is considerable, in particular on the stable side of the channel where velocity fluctuations are stronger and the flow relaminarizes less quickly at higher $Re$. Visualizations and statistics show that, at $Ro=0.15$ and 0.45, large-scale structures and large counter-rotating streamwise roll cells develop on the unstable side. These become less noticeable and eventually vanish when $Ro$ rises, especially at higher $Re$. At high $Ro$, the largest energetic structures are larger at lower $Re$.
Onset of global instability in low-density jets
Authors: Zhu Yuanhang , Gupta Vikrant , Li Larry K. B. 
Published: September 2017

In low-density axisymmetric jets, the onset of global instability is known to depend on three control parameters, namely the jet-to-ambient density ratio $S$, the initial momentum thickness $\unicode[STIX]{x1D703}_{0}$ and the Reynolds number $Re$. For sufficiently low values of $S$ and $\unicode[STIX]{x1D703}_{0}$, these jets bifurcate from a steady state (a fixed point) to a self-excited oscillatory state (a limit cycle) when $Re$ increases above a critical value corresponding to the Hopf point, $Re_{H}$. In the literature, this Hopf bifurcation is often regarded as supercritical. In this experimental study, however, we find that under some conditions, there exists a hysteretic bistable region at $Re_{SN}<Re<Re_{H}$, where $Re_{SN}$ denotes a saddle-node point. This shows that, contrary to expectations, the Hopf bifurcation can also be subcritical, which we explore by evaluating the coefficients of a truncated Landau model. The existence of subcritical bifurcations implies the potential for triggering and the need for weakly nonlinear analyses to be performed to at least fifth order if one is to be able to predict saturation and bistability. We conclude by proposing a universal scaling for $Re_{H}$ in terms of $S$ and $\unicode[STIX]{x1D703}_{0}$. This scaling, which is insensitive to the super/subcritical nature of the bifurcations, can be used to predict the onset of self-excited oscillations, providing further evidence to support Hallberg & Strykowski’s concept (J. Fluid Mech., vol. 569, 2006, pp. 493–507) of universal global modes in low-density jets.
Lattice Boltzmann Simulations of Cavity Flows on Graphic Processing Unit with Memory Management
Authors: Hong P. Y. , Huang L. M. , Chang C. Y. , Lin C. A. 
Published: September 2017

AbstractLattice Boltzmann method (LBM) is adopted to compute two and three-dimensional lid driven cavity flows to examine the influence of memory management on the computational performance using Graphics Processing Unit (GPU). Both single and multi-relaxation time LBM are adopted. The computations are conducted on nVIDIA GeForce Titan, Tesla C2050 and GeForce GTX 560Ti. The performance using global memory deteriorates greatly when multi relaxation time (MRT) LBM is used, which is due to the scheme requesting more information from the global memory than its single relaxation time (SRT) LBM counterpart. On the other hand, adopting on chip memory the difference using MRT and SRT is not significant. Also, performance of LBM streaming procedure using offset reading surpasses offset writing ranging from 50% to 100% and this applies to both SRT and MRT LBM. Finally, comparisons using different GPU platforms indicate that Titan as expected outperforms other devices, and attains 227 and 193 speedup over its Intel Core i7-990 CPU counterpart and four times faster than GTX 560Ti and Tesla C2050 for three dimensional cavity flow simulations respectively with single and double precisions.
BRAIDED MIXED DATUMS AND THEIR APPLICATIONS ON HOM-QUANTUM GROUPS
Authors: ZHANG XIAOHUI , DONG LIHONG 
Published: September 2017

AbstractIn this paper, we mainly provide a categorical view on the braided structures appearing in the Hom-quantum groups. Let $\mathcal{C}$ be a monoidal category on which F is a bimonad, G is a bicomonad, and ϕ is a distributive law, we discuss the necessary and sufficient conditions for $\mathcal{C}^G_F(\varphi)$, the category of mixed bimodules to be monoidal and braided. As applications, we discuss the Hom-type (co)quasitriangular structures, the Hom–Yetter–Drinfeld modules, and the Hom–Long dimodules.
Helminth composition and prevalence of indigenous and invasive synanthropic murid rodents in urban areas of Gauteng Province, South Africa
Authors: Julius R.S. , Schwan E.V. , Chimimba C.T. 
Published: September 2017

AbstractAlthough synanthropic rodents such as the indigenous species,Mastomys coucha,and the invasive species,Rattus norvegicus,R. rattusandR. tanezumi, are well-known to be hosts to various micro- and macroparasites, their helminth parasite fauna is poorly studied in South Africa. In an attempt to remedy the situation, the aim of the present study was to investigate the helminth fauna of these sympatric rodent species, which were obtained from the informal settlements of Alexandra, Tembisa, Diepsloot and residential suburbs of Pretoria and Hammanskraal, Gauteng Province, South Africa. Helminths were recovered from the urinary bladder, liver and gastrointestinal tract and were identified morphologically and molecularly. The recovered nematodes were all rodent-specific and includedAspiculuris tetraptera,Eucoleussp.,Heterakis spumosa,Mastophorus muris,Nippostrongylus brasiliensis,Protospirurasp.,Strongyloides ratti,Syphacia obvelata,Syphacia muris,Trichurissp. andTrichosomoides crassicauda.Syphacia obvelata, a commensal nematode of laboratory rodents, was recovered from indigenousM. coucha. Strobilar stages of cestodes recovered includedHymenolepis diminuta,Hymenolepis nanaandInermicapsifer madagascariensis. Recovered metacestodes were strobilocerci ofHydatigera taeniaeformisfrom all three invasiveRattusspecies and coenurostrobilocerci ofHydatigera parvafromM. coucha. An acanthocephalan,Moniliformis moniliformis, was recovered fromR. rattusonly. All rodent species examined showed high helminth infection prevalence (≥70%) with equal or higher nematode than cestode prevalence.Mastomys coucha, however, showed significantly lower cestode prevalence thanRattusspecies where they co-occur. Interspecific transmission of helminths likely occurs between invasive and indigenous rodents, and these rodents harbour several helminths that have zoonotic implications.
Just Another Day in Chancery Lane: Disorder and the Law in London's Legal Quarter in the Fifteenth Century
Authors: Kleineke Hannes , Ross James 
Published: September 2017

Scarcely any turbulence, quarrels or disturbance ever occur there, but delinquents are punished with no other punishment than expulsion from communion with their society, which is a penalty they fear more than criminals elsewhere fear imprisonment and fetters. For a man once expelled from one of these societies is never received into the fellowship of any other of those societies. Hence the peace is unbroken and the conversation of all of them is as the friendship of united folk.This was Sir John Fortescue's idealized account to the exiled prince of Wales, Edward of Lancaster, of the peace-loving nature of London's Inns of Court and Chancery in the mid-fifteenth century. Fortescue was not concerned with the reality, which, as he knew all too well, was different. He was concerned with impressing on his young pupil the perfection of the English law and the education of its practitioners, rather than the imperfections that existed in a society that the prince, as he explicitly told him, would never experience. Few who were familiar with the legal quarter that surrounded the Inns would have recognized the Arcadia that Fortescue described. Far from being the peaceful and well-ordered district that the former chief justice invoked, in the period when he wrote the area to the west of London's Temple Bar was a liminal space, populated by—among others—large numbers of young trainee lawyers, in whom the kind of unruly behaviour otherwise also associated with the early universities, not least the western suburb's Paris counterpart, thequartier latinto the south of the river Seine, was endemic. Among the most important factors that made it so was the very existence of the established, and to some extent tribal, all-male societies of the Inns of Court and of Chancery, at close quarters with the royal law courts and their heady mix of disputants and hired legal counsellors in permanent competition with each other.
Central line-associated bloodstream infections in Australian ICUs: evaluating modifiable and non-modifiable risks in Victorian healthcare facilities
Authors: SPELMAN T. , PILCHER D. V. , CHENG A. C. , BULL A. L. , RICHARDS M. J. , WORTH L. J. 
Published: September 2017

SUMMARYCentral line-associated bloodstream infections (CLABSIs) in intensive care units (ICUs) result in poor clinical outcomes and increased costs. Although frequently regarded as preventable, infection risk may be influenced by non-modifiable factors. The objectives of this study were to evaluate organisational factors associated with CLABSI in Victorian ICUs to determine the nature and relative contribution of modifiable and non-modifiable risk factors. Data captured by the Australian and New Zealand Intensive Care Society regarding ICU-admitted patients and resources were linked to CLABSI surveillance data collated by the Victorian Healthcare Associated Infection Surveillance System between 1 January 2010 and 31 December 2013. Accepted CLABSI surveillance methods were applied and hospital/patient characteristics were classified as ‘modifiable’ and ‘non-modifiable’, enabling longitudinal Poisson regression modelling of CLABSI risk. In total, 26 ICUs were studied. Annual CLABSI rates were 1·72, 1·37, 1·00 and 0·93/1000 CVC days for 2010–2013. Of non-modifiable factors, the number of non-invasively ventilated patients standardised to total ICU bed days was found to be independently associated with infection (RR 1·07; 95% CI 1·01–1·13; P = 0·030). Modelling of modifiable risk factors demonstrated the existence of a policy for mandatory ultrasound guidance for central venous catheter (CVC) localisation (RR 0·51; 95% CI 0·37–0·70; P < 0·001) and increased number of sessional specialist full-time equivalents (RR 0·52; 95% CI 0·29–0·93; P = 0·027) to be independently associated with protection against infection. Modifiable factors associated with reduced CLABSI risk include ultrasound guidance for CVC localisation and increased availability of sessional medical specialists.
Coherent diffractive imaging of single helium nanodroplets with a high harmonic generation source
Authors: Rupp Daniela , Monserud Nils , Langbehn Bruno , Sauppe Mario , Zimmermann Julian , Ovcharenko Yevheniy , Möller Thomas , Frassetto Fabio , Poletto Luca , Trabattoni Andrea , Calegari Francesca , Nisoli Mauro , Sander Katharina , Peltz Christian , J. Vrakking Marc , Fennel Thomas , Rouzée Arnaud 
Published: September 2017

AbstractCoherent diffractive imaging of individual free nanoparticles has opened routes for the in situ analysis of their transient structural, optical, and electronic properties. So far, single-shot single-particle diffraction was assumed to be feasible only at extreme ultraviolet and X-ray free-electron lasers, restricting this research field to large-scale facilities. Here we demonstrate single-shot imaging of isolated helium nanodroplets using extreme ultraviolet pulses from a femtosecond-laser-driven high harmonic source. We obtain bright wide-angle scattering patterns, that allow us to uniquely identify hitherto unresolved prolate shapes of superfluid helium droplets. Our results mark the advent of single-shot gas-phase nanoscopy with lab-based short-wavelength pulses and pave the way to ultrafast coherent diffractive imaging with phase-controlled multicolor fields and attosecond pulses.
Usb1 controls U6 snRNP assembly through evolutionarily divergent cyclic phosphodiesterase activities
Authors: Didychuk Allison L. , Montemayor Eric J. , Carrocci Tucker J. , DeLaitsch Andrew T. , Lucarelli Stefani E. , Westler William M. , Brow David A. , Hoskins Aaron A. , Butcher Samuel E. 
Published: September 2017

AbstractU6 small nuclear ribonucleoprotein (snRNP) biogenesis is essential for spliceosome assembly, but not well understood. Here, we report structures of the U6 RNA processing enzyme Usb1 from yeast and a substrate analog bound complex from humans. Unlike the human ortholog, we show that yeast Usb1 has cyclic phosphodiesterase activity that leaves a terminal 3′ phosphate which prevents overprocessing. Usb1 processing of U6 RNA dramatically alters its affinity for cognate RNA-binding proteins. We reconstitute the post-transcriptional assembly of yeast U6 snRNP in vitro, which occurs through a complex series of handoffs involving 10 proteins (Lhp1, Prp24, Usb1 and Lsm2–8) and anti-cooperative interactions between Prp24 and Lhp1. We propose a model for U6 snRNP assembly that explains how evolutionarily divergent and seemingly antagonistic proteins cooperate to protect and chaperone the nascent snRNA during its journey to the spliceosome.
Evolution of protein-coupled RNA dynamics during hierarchical assembly of ribosomal complexes
Authors: Abeysirigunawardena Sanjaya C. , Kim Hajin , Lai Jonathan , Ragunathan Kaushik , Rappé Mollie C. , Luthey-Schulten Zaida , Ha Taekjip , Woodson Sarah A. 
Published: September 2017

AbstractAssembly of 30S ribosomes involves the hierarchical addition of ribosomal proteins that progressively stabilize the folded 16S rRNA. Here, we use three-color single molecule FRET to show how combinations of ribosomal proteins uS4, uS17 and bS20 in the 16S 5′ domain enable the recruitment of protein bS16, the next protein to join the complex. Analysis of real-time bS16 binding events shows that bS16 binds both native and non-native forms of the rRNA. The native rRNA conformation is increasingly favored after bS16 binds, explaining how bS16 drives later steps of 30S assembly. Chemical footprinting and molecular dynamics simulations show that each ribosomal protein switches the 16S conformation and dampens fluctuations at the interface between rRNA subdomains where bS16 binds. The results suggest that specific protein-induced changes in the rRNA dynamics underlie the hierarchy of 30S assembly and simplify the search for the native ribosome structure.
Scalable carbon dioxide electroreduction coupled to carbonylation chemistry
Authors: Jensen Mikkel T. , Rønne Magnus H. , Ravn Anne K. , Juhl René W. , Nielsen Dennis U. , Hu Xin-Ming , Pedersen Steen U. , Daasbjerg Kim , Skrydstrup Troels 
Published: September 2017

AbstractSignificant efforts have been devoted over the last few years to develop efficient molecular electrocatalysts for the electrochemical reduction of carbon dioxide to carbon monoxide, the latter being an industrially important feedstock for the synthesis of bulk and fine chemicals. Whereas these efforts primarily focus on this formal oxygen abstraction step, there are no reports on the exploitation of the chemistry for scalable applications in carbonylation reactions. Here we describe the design and application of an inexpensive and user-friendly electrochemical set-up combined with the two-chamber technology for performing Pd-catalysed carbonylation reactions including amino- and alkoxycarbonylations, as well as carbonylative Sonogashira and Suzuki couplings with near stoichiometric carbon monoxide. The combined two-reaction process allows for milligram to gram synthesis of pharmaceutically relevant compounds. Moreover, this technology can be adapted to the use of atmospheric carbon dioxide.
Warming up human body by nanoporous metallized polyethylene textile
Authors: Cai Lili , Song Alex Y. , Wu Peilin , Hsu Po-Chun , Peng Yucan , Chen Jun , Liu Chong , Catrysse Peter B. , Liu Yayuan , Yang Ankun , Zhou Chenxing , Zhou Chenyu , Fan Shanhui , Cui Yi 
Published: September 2017

AbstractSpace heating accounts for the largest energy end-use of buildings that imposes significant burden on the society. The energy wasted for heating the empty space of the entire building can be saved by passively heating the immediate environment around the human body. Here, we demonstrate a nanophotonic structure textile with tailored infrared (IR) property for passive personal heating using nanoporous metallized polyethylene. By constructing an IR-reflective layer on an IR-transparent layer with embedded nanopores, the nanoporous metallized polyethylene textile achieves a minimal IR emissivity (10.1%) on the outer surface that effectively suppresses heat radiation loss without sacrificing wearing comfort. This enables 7.1 °C decrease of the set-point compared to normal textile, greatly outperforming other radiative heating textiles by more than 3 °C. This large set-point expansion can save more than 35% of building heating energy in a cost-effective way, and ultimately contribute to the relief of global energy and climate issues.
The most active Cu facet for low-temperature water gas shift reaction
Authors: Zhang Zhenhua , Wang Sha-Sha , Song Rui , Cao Tian , Luo Liangfeng , Chen Xuanye , Gao Yuxian , Lu Jiqing , Li Wei-Xue , Huang Weixin 
Published: September 2017

AbstractIdentification of the active site is important in developing rational design strategies for solid catalysts but is seriously blocked by their structural complexity. Here, we use uniform Cu nanocrystals synthesized by a morphology-preserved reduction of corresponding uniform Cu2O nanocrystals in order to identify the most active Cu facet for low-temperature water gas shift (WGS) reaction. Cu cubes enclosed with {100} facets are very active in catalyzing the WGS reaction up to 548 K while Cu octahedra enclosed with {111} facets are inactive. The Cu–Cu suboxide (CuxO, x ≥ 10) interface of Cu(100) surface is the active site on which all elementary surface reactions within the catalytic cycle proceed smoothly. However, the formate intermediate was found stable at the Cu–CuxO interface of Cu(111) surface with consequent accumulation and poisoning of the surface at low temperatures. Thereafter, Cu cubes-supported ZnO catalysts are successfully developed with extremely high activity in low-temperature WGS reaction.