53,205 results match your criteria Radius Distal Fractures


Graft copolymeric flocculant using functionalized starch towards treatment of blast furnace effluent.

Int J Biol Macromol 2018 Dec 3. Epub 2018 Dec 3.

Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad 826004, India. Electronic address:

Herein, a novel binary graft copolymeric flocculant [St-g-(PAAm-co-PMETAC)] has been developed using starch, polyacrylamide (PAAm) and poly (2-methacryloyloxy ethyl trimethyl ammonium chloride) (PMETAC). The copolymer has been synthesised by grafting of PAAm and PMETAC chains on starch backbone using free radical polymerization. FTIR and H NMR spectral analyses have been used for structural confirmation of developed copolymer. Read More

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December 2018

Visceral leishmaniasis: Spatiotemporal heterogeneity and drivers underlying the hotspots in Muzaffarpur, Bihar, India.

PLoS Negl Trop Dis 2018 Dec 6;12(12):e0006888. Epub 2018 Dec 6.

Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India.

Background: Despite the overall decrease in visceral leishmaniasis (VL) incidence on the Indian subcontinent, there remain spatiotemporal clusters or 'hotspots' of new cases. The characteristics of these hotspots, underlying transmission dynamics, and their importance for shaping control strategies are not yet fully understood and are investigated in this study for a VL endemic area of ~100,000 inhabitants in Bihar, India between 2007-2015.

Methodology/principal Findings: VL incidence (cases/10,000/year) dropped from 12. Read More

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December 2018

Computerized anatomy of the distal radius and its relevance to volar plating, research, and teaching.

Clin Anat 2018 Dec 6. Epub 2018 Dec 6.

AO Research Institute Davos, Davos, Switzerland.

Distal radius fractures are common and fracture patterns and fixation can be complex. Computerized anatomy evaluation (CAE) might offer non-invasive and enhanced anatomy assessment that might help with implant selection and placement and screw length determination. Our goal was to test the accuracy of two CAE methods for anatomical volar plate positioning and screw lengths measurement of the distal radius. Read More

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December 2018

Novel NTRK3 Fusions in Fibrosarcomas of Adults.

Am J Surg Pathol 2018 Dec 4. Epub 2018 Dec 4.

Rare Cancer Center.

NTRK fusions in malignant tumors are therapeutic targets of tyrosine kinase inhibitors. Because they occur only in a small subset of mesenchymal tumors, knowledge regarding the corresponding histology is important to effectively identify patients who could benefit from targeted therapy. In this study, using RNA sequencing, we identified novel NTRK3 fusions involving related partner genes in 2 adult bone and soft tissue tumors that met the current histologic criteria of fibrosarcoma. Read More

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December 2018
1 Read

Pain Management during Rehabilitation after Distal Radius Fracture Stabilized with Volar Locking Plate: A Prospective Cohort Study.

Biomed Res Int 2018 5;2018:5786089. Epub 2018 Nov 5.

Department of Orthopedics, First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai, Wenzhou, Zhejiang 325000, China.

Introduction: Internal fixation with volar locking plate (VLP) was widely adopted as a first-line choice in treatment of distal radius fracture (DRF).

Methods: Total 315 patients with distal radius fracture receiving VLP fixation were included for analysis in this study. The rehabilitation protocol was started immediately after surgery for all patients. Read More

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November 2018

ATP-dependent membrane remodeling links EHD1 functions to endocytic recycling.

Nat Commun 2018 Dec 5;9(1):5187. Epub 2018 Dec 5.

Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India.

Endocytic and recycling pathways generate cargo-laden transport carriers by membrane fission. Classical dynamins, which generate transport carriers during endocytosis, constrict and cause fission of membrane tubes in response to GTP hydrolysis. Relatively, less is known about the ATP-binding Eps15-homology domain-containing protein1 (EHD1), a dynamin family member that functions at the endocytic-recycling compartment. Read More

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December 2018

Ultrasonic Transmission Tomography Sensor Design for Bubble Identification in Gas-Liquid Bubble Column Reactors.

Sensors (Basel) 2018 Dec 4;18(12). Epub 2018 Dec 4.

School of Automation, Northwestern Polytechnical University, Xi'an 710129, China.

Scientists require methods to monitor the distribution of gas bubbles in gas-liquid bubble column reactors. One non-destructive method that can potential satisfy this requirement in industrial situations is ultrasonic transmission tomography (UTT). In this paper, an ultrasonic transmission tomography sensor is designed for measuring bubble distribution in a reactor. Read More

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December 2018

Implementation of a geographic information system (GIS) for the planning of beekeeping in the west region of Paraná.

An Acad Bras Cienc 2014 Jun;86(2):955-971

Centro de Ciências Agrárias/ UNIOESTE, Marechal Cândido Rondon, PR, Brasil.

This study aimed to develop a Geographic Information System (GIS), for storage of information and geographic location of apiaries in eight counties in western Paraná; study the local flora; the land used; and the honey productivity in the harvest of 2010 in two of these areas: Marechal Cândido Rondon and Santa Helena. In order to do so we used the software SPRING, delimiting a radius of action of bees of three kilometers around the apiaries. We interviewed and registered 126 beekeepers with 383 apiaries. Read More

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Integrating 3D Printing and Biomimetic Mineralization for Personalized Enhanced Osteogenesis, Angiogenesis, and Osteointegration.

ACS Appl Mater Interfaces 2018 Dec 3. Epub 2018 Dec 3.

Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, Institute for Biomedical Engineering, Science and Technology , University of Oklahoma , Norman , Oklahoma 73072 , United States.

Titanium (Ti) alloy implants can repair bone defects at load-bearing sites. However, they mechanically mismatch with the natural bone and lack customized adaption with the irregularly major-sized load-bearing bone defects, resulting in the failure of implant fixation. Mineralized collagen (MC), a building block in bone, can induce angiogenesis and osteogenesis, and 3D printing technology can be employed to prepare scaffolds with an overall shape customized to the bone defect. Read More

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December 2018

Three-dimensional kinematics of the flexor pollicis longus tendon in relation to the position of the FPL plate and distal radius width.

Arch Orthop Trauma Surg 2018 Dec 1. Epub 2018 Dec 1.

AUVA Trauma Hospital Lorenz Böhler-European Hand Trauma Center, Donaueschingenstraße 13, 1200, Vienna, Austria.

Introduction: The standard therapy of intra-articular and extra-articular distal radius fractures consists of open reduction and stabilization using palmar osteosynthesis with an angularly stable plate. The integrity of the flexor pollicis longus tendon (FPLT) may be mechanically affected by the plate, with rupture rates between 1 and 12% reported in the literature, occurring during a postoperative time period from 4 to 120 months. The aim of this study was to investigate the position of the tendon in relation to the distal edge of the plate using high-resolution ultrasonic imaging. Read More

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December 2018
1 Read

Performance evaluation of a new high-sensitivity time-of-flight clinical PET/CT system.

EJNMMI Phys 2018 Dec 1;5(1):29. Epub 2018 Dec 1.

Department of Biomedical Engineering, Tsinghua University, Beijing, China.

Background: PoleStar m660 is a newly developed clinical PET/CT system with time-of-flight (TOF) capability. The aim of this study is to characterize the performance of the new system. Spatial resolution, sensitivity, scatter fraction, and noise equivalent count rate (NECR) were measured on the scanner according to the NEMA NU 2-2012 protocol. Read More

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December 2018

[Glaucoma due to elevated episcleral venous pressure].

Ophthalmologe 2018 Nov 30. Epub 2018 Nov 30.

Klinik und Poliklinik für Augenheilkunde, Klinikum der Universität Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Deutschland.

Background: Glaucoma due to elevated episcleral venous pressure is a rare and difficult to treat form of secondary open angle glaucoma.

Objective: The pathophysiology, clinical findings, differential diagnosis and treatment options are discussed. Radius-Maumenee syndrome, Sturge-Weber syndrome and carotid-cavernous sinus fistulas are covered in particular. Read More

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November 2018

Cognizance and social attitudes regarding tobacco control laws in and around educational institutions of Nellore city, India.

J Educ Health Promot 2018 29;7:125. Epub 2018 Oct 29.

Department of Periodontics, Narayana Dental College and Hospital, Nellore, Andhra Pradesh, India.

Introduction: Indian national law namely Cigarettes and Other Tobacco Products Act (COTPA) exists since 2003 and aims at protecting all the people in our country, but smoking is still prevalent among people. This study was aimed to assess awareness, attitudes, and practices regarding prohibition of sale of tobacco products near educational institutions of Nellore city, India.

Materials And Methods: A descriptive cross-sectional study was conducted in degree colleges of Nellore city of Andhra Pradesh. Read More

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October 2018

Morphometric Variations in the Volar Aspect of the Distal Radius.

Clin Orthop Surg 2018 Dec 21;10(4):462-467. Epub 2018 Nov 21.

Jeil Medical Corporation, Seoul, Korea.

Background: Significant discrepancy exists between anatomical plate designs and the anatomy of the native distal radius, which may be attributable to considerable morphometric variations in the volar aspect of the distal radius. We aimed to evaluate the degree of variability in the morphometry of the distal radius and identify factors associated with this variability.

Methods: We measured the volar surface angle (VSA) of the intermediate and lateral columns and the volar surface width (VSW) in the distal radius from three-dimensional computed tomography scans acquired from 81 cadaveric forearms. Read More

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December 2018

Magnetotransport and conductivity mechanisms in CuZnSnGeS single crystals.

Sci Rep 2018 Nov 30;8(1):17507. Epub 2018 Nov 30.

Department of Physics, Lappeenranta University of Technology, PO Box 20, FIN-53851, Lappeenranta, Finland.

Resistivity, ρ(T), and magnetoresistance (MR) are investigated in the CuZnSnGeS single crystals, obtained by the chemical vapor transport method, between x = 0-0.70, in the temperature range of T ~ 50-300 K in pulsed magnetic field of B up to 20 T. The Mott variable-range hopping (VRH) conductivity is observed within broad temperature intervals, lying inside that of T ~ 80-180 K for different x. Read More

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November 2018
1 Read

Cortical and trabecular bone microarchitecture as an independent predictor of incident fracture risk in older women and men in the Bone Microarchitecture International Consortium (BoMIC): a prospective study.

Lancet Diabetes Endocrinol 2018 Nov 28. Epub 2018 Nov 28.

Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Department of Orthopedic Surgery, Harvard Medical School, Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, USA.

Background: Although areal bone mineral density (aBMD) assessed by dual-energy x-ray absorptiometry (DXA) is the clinical standard for determining fracture risk, most older adults who sustain a fracture have T scores greater than -2·5 and thus do not meet the clinical criteria for osteoporosis. Importantly, bone fragility is due to low BMD and deterioration in bone structure. We assessed whether indices of high-resolution peripheral quantitative CT (HR-pQCT) were associated with fracture risk independently of femoral neck aBMD and the Fracture Risk Assessment Tool (FRAX) score. Read More

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November 2018

Antibacterial, antibiofilm, and photocatalytic activities of metals-substituted spinel cobalt ferrite nanoparticles.

Microb Pathog 2018 Nov 28. Epub 2018 Nov 28.

Physics Department, Faculty of Science (Boys Branch), Al-Azhar University, Cairo, Egypt.

This study reports the photocatalytic degradation of Methylene Blue (MB) dye (a class of dyestuffs that are resistant to biodegradation) under the influence of UV-light irradiation. Antibacterial and antibiofilm activities of ferrite nanoparticles (FO NPs) were examined against some pathogenic bacteria isolated from the medical operating room surfaces. In the same context, metals-substituted spinel cobalt ferrite nanoparticles with nominal composition [MCoFeO NPs; (M = Zn, Cu, Mn; x = 0. Read More

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November 2018

Electromagnetic waves' effect on airflow during air sparging.

J Contam Hydrol 2018 Nov 14. Epub 2018 Nov 14.

Professor, Department of Electrical & Computer Engineering, Boise State University, 1910 University Dr., MS 2075, Boise, ID 83725-2075, USA.

Air sparging is a popular, yet slow, remediation technology for soil and groundwater contaminated with volatile organic compounds (VOCs). This paper theoretically and experimentally studies the effect of electromagnetic (EM) waves on air-channel formation within a glass-bead medium-used as an analogy to soil-during air-sparging experiments. The impact of EM waves on cleanup is not the focus of this paper, and the impact on airflow may or may not positively impact resulting cleanup process using air sparging to remove VOCs through volatilization. Read More

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November 2018

Intermediate-Term Outcome After Distal Radius Fracture in Patients With Poor Outcome at 1 Year: A Register Study With a 2- to 12-Year Follow-Up.

J Hand Surg Am 2018 Nov 27. Epub 2018 Nov 27.

Department of Orthopedics, Clinical Sciences, Lund University and Skåne University Hospital, Lund.

Purpose: Most patients recover well from a distal radius fracture (DRF). However, approximately one-fifth have severe disability after 1 year when evaluated using the Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire. In the present study, we evaluated this subgroup of patients in our register with an inferior outcome. Read More

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November 2018

Isolated Partial Intra-Articular Volar Ulnar Fractures of the Distal Radius: The Tetrahedron Variant.

J Hand Surg Am 2018 Nov 27. Epub 2018 Nov 27.

Hand and Elbow Section, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL.

Purpose: The aim of this study was to assess the treatment and complications of a distinct type of partial intra-articular distal radius fracture.

Methods: Seven patients treated by the senior author between 2008 and 2013 for a partial intra-articular distal radius fracture with isolated involvement of the volar lunate facet were included. All fragments had the distinctive shape of a triangular-base pyramid (tetrahedron) extending from the metaphysis distally. Read More

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November 2018

Computed Tomography Analysis of the Radial Notch of the Ulna.

J Hand Surg Am 2018 Nov 27. Epub 2018 Nov 27.

Roth|McFarlane Hand and Upper Limb Center, St Joseph's Health Care, University of Western Ontario, London, Ontario, Canada.

Purpose: The anatomy of the radial head and capitellum has been extensively studied; however, the anatomy of the radial notch of the ulna (RNU) has received little attention. This imaging-based anatomic study characterizes the morphology of the RNU.

Methods: Ninety-eight cadaveric arms (57 male, 72 ± 14 y) were imaged with computed tomography, and 3-dimensional reconstructions of the proximal ulna were constructed. Read More

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November 2018

Polymer size affects biodistribution and placental accumulation of the drug delivery biopolymer elastin-like polypeptide in a rodent pregnancy model.

Placenta 2018 Dec 20;72-73:20-27. Epub 2018 Oct 20.

Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS, USA; Department of Neurology, University of Mississippi Medical Center, Jackson, MS, USA. Electronic address:

Introduction: Fusion of therapeutic agents to Elastin-like Polypeptide (ELP) is a novel drug delivery strategy for prevention of placental drug transfer. Previous studies have used a 60 kDa ELP tag for this purpose. However, placental transfer of ELP may be size dependent. Read More

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December 2018

Determination of 2D poloidal maps of the intrinsic W density for transport studies in JET-ILW.

Rev Sci Instrum 2018 Nov;89(11):113501

Max-Planck-Institut für Plasmaphysik, Boltzmannstrasse 2, D-85748 Garching, GermanyCCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB, United KingdomInstituto de Plasmas e Fuso Nuclear, Instituto Superior Tcnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalOak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.

The experimental method developed at ASDEX Upgrade for the determination of the intrinsic tungsten (W) density profile coupling data from the soft X-ray (SXR) diagnostic and vacuum-ultra-violet (VUV) spectroscopy has been upgraded for application to JET plasmas. The strong poloidal asymmetries in the SXR emission are modeled assuming a distribution, where is the flux coordinate, is the major radius, and is the fit parameter. The W density is calculated from the resulting 2D SXR emissivity maps accounting for contributions from a low-Z impurity (typically beryllium) and main ion with the assumption that their contributions are poloidally symmetric. Read More

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November 2018

Comprehensive high-precision high-accuracy equation of state and coexistence properties for classical Lennard-Jones crystals and low-temperature fluid phases.

J Chem Phys 2018 Nov;149(20):204508

Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, USA.

We report equilibrium molecular simulation data for the classical Lennard-Jones (LJ) model, covering all thermodynamic states where the crystal is stable, as well as fluid states near coexistence with the crystal; both fcc and hcp polymorphs are considered. These data are used to compute coexistence lines and triple points for equilibrium among the fcc, hcp, and fluid phases. All results are obtained with very high accuracy and precision such that coexistence conditions are obtained with one to two significant figures more than previously reported. Read More

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November 2018

Dimensions of catenated ring polymers in dilute solution studied by Monte-Carlo simulation.

J Chem Phys 2018 Nov;149(20):204901

Chemical and Biological Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.

Interaction between two simple ring chains catenated in a molecule was estimated by a Metropolis Monte Carlo simulation, and the result was compared with a model. We employed catenated ring chains in this study; they were composed of two simple ring chains, and the topology was kept as . The temperature dependence of the distance between two ring chains in a molecule was discussed using Flory's scaling exponent, , in ∝ , where is the radius of gyration of a simple ring chain catenated in a molecule. Read More

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November 2018

Determination of the Elasticity Modulus of 3D-Printed Octet-Truss Structures for Use in Porous Prosthesis Implants.

Materials (Basel) 2018 Nov 29;11(12). Epub 2018 Nov 29.

Escola Tècnica Superior d'Enginyeria Industrial de Barcelona (ETSEIB), Avinguda Diagonal, 647, 08028 Barcelona, Spain.

In tissue engineering, scaffolds can be obtained by means of 3D printing. Different structures are used in order to reduce the stiffness of the solid material. The present article analyzes the mechanical behavior of octet-truss microstructures. Read More

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November 2018
1 Read

Nuclear Charge Radii of ^{229}Th from Isotope and Isomer Shifts.

Phys Rev Lett 2018 Nov;121(21):213001

Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.

The isotope ^{229}Th is unique in that it possesses an isomeric state of only a few electron volts above the ground state, suitable for nuclear laser excitation. An optical clock based on this transition is expected to be a very sensitive probe for variations of fundamental constants, but the nuclear properties of both states have to be determined precisely to derive the actual sensitivity. We carry out isotope shift calculations in Th^{+} and Th^{2+} including the specific mass shift, using a combination of configuration interaction and all-order linearized coupled-cluster methods and estimate the uncertainty of this approach. Read More

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November 2018

Globulelike Conformation and Enhanced Diffusion of Active Polymers.

Phys Rev Lett 2018 Nov;121(21):217802

Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany.

We study the dynamics and conformation of polymers composed by active monomers. By means of Brownian dynamics simulations we show that, when the direction of the self-propulsion of each monomer is aligned with the backbone, the polymer undergoes a coil-to-globulelike transition, highlighted by a marked change of the scaling exponent of the gyration radius. Concurrently, the diffusion coefficient of the center of mass of the polymer becomes essentially independent of the polymer size for sufficiently long polymers or large magnitudes of the self-propulsion. Read More

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November 2018
2 Reads

The Critical Portions of Carpal Tunnel Release, Ulnar Nerve Transposition, and Open Reduction and Internal Fixation of the Distal Part of the Radius.

J Bone Joint Surg Am 2018 Dec;100(23):e148

Department of Orthopaedic Surgery (C.J.D. and C.A.G.), Division of Public Health Services, Department of Surgery (C.J.D.), and Division of General Medical Sciences (A.L.A. and J.M.D.), Washington University School of Medicine, St. Louis, Missouri.

Background: Overlapping surgery is attracting increased scrutiny. The American College of Surgeons states that the attending surgeon must be present for all critical portions of a surgical procedure; however, critical portions of surgical procedures are not defined. We hypothesized that a Delphi panel process would measure consensus on critical portions of 3 common hand surgical procedures. Read More

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December 2018
1 Read

Charged polystyrene nanoparticles near a SiO2/water interface.

Langmuir 2018 Dec 5. Epub 2018 Dec 5.

Quartz crystal microbalance with dissipation (QCM-D) monitoring is traditionally used to investigate adsorption processes at liquid-solid interfaces but has also been applied increasingly to characterize the viscoelastic properties of complex liquids. Here, we contribute new insights to the latter field by using QCM-D to investigate the structure near an interface and high-frequency viscoelastic properties of charge stabilized polystyrene particles (radius 37 nm) dispersed in pure water. The study reveals changes with increasing ionic-strength from the crystalline order at low salt concentration to that with a less-structured particle distribution at high ionic strength. Read More

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December 2018

Facile Synthesis of Resveratrol Nanogels with Enhanced Fluorescent Emission.

Macromol Biosci 2018 Dec 5:e1800438. Epub 2018 Dec 5.

Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.

Herein, a kind of fluorescent resveratrol nanogels via one-pot thiol-ene Michael addition polymerization of resveratrol triacrylate, 1,6-hexanedithiol, and methoxyl poly(ethylene glycol) acrylate is prepared. The resultant nanogels can be well-dispersed in water with a hydrodynamic radius of around 68 nm, and the nanogels are stable in both water and organic solvents. Moreover, the resveratrol nanogels exhibit elevated fluorescence intensity compared to free resveratrol, and the quantum yield of resveratrol nanogels is estimated to be 5. Read More

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December 2018
1 Read

Bandgap Engineering of Indium Phosphide-Based Core/Shell Heterostructures Through Shell Composition and Thickness.

Front Chem 2018 20;6:567. Epub 2018 Nov 20.

Division of Materials Science and Engineering, Boston University, Boston, MA, United States.

The large bulk bandgap (1.35 eV) and Bohr radius (~10 nm) of InP semiconductor nanocrystals provides bandgap tunability over a wide spectral range, providing superior color tuning compared to that of CdSe quantum dots. In this paper, the dependence of the bandgap, photoluminescence emission, and exciton radiative lifetime of core/shell quantum dot heterostructures has been investigated using colloidal InP core nanocrystals with multiple diameters (1. Read More

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November 2018

Thin-Shelled PEGylated Perfluorooctyl Bromide Nanocapsules for Tumor-Targeted Ultrasound Contrast Agent.

Contrast Media Mol Imaging 2018 1;2018:1725323. Epub 2018 Nov 1.

Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Showa-machi 3-39-22, Maebashi, Gunma 3718511, Japan.

Shell thickness determines the acoustic response of polymer-based perfluorooctyl bromide (PFOB) nanocapsule ultrasound contrast agents. PEGylation provides stealth property and arms for targeting moieties. We investigated a modulation in the polymer formulation of carboxy-terminated poly(d,l-lactide-co-glycolide) (PLGA) and poly(d,l-lactide-co-glycolide)--polyethylene glycol (PLGA--PEG) to produce thin-shelled PFOB nanocapsules while keeping its echogenicity, stealth property, and active targeting potential. Read More

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November 2018

Recovery response of vertical gas wells in non-homogeneous landfills.

Waste Manag 2019 Jan 5;83:33-45. Epub 2018 Nov 5.

Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China. Electronic address:

A two-dimensional axisymmetric and normalized analytical model for landfill gas (LFG) migration around a vertical well is developed. The vertical gas permeability and LFG generation rate of waste are assumed to be subject to exponential decreases with depth. Using a general analytical solution, over 500,000 scenarios involving a combination of typical control variables (viz: cover properties, waste properties, vacuum pressure, well radius and spacing) are modelled. Read More

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January 2019
1 Read

Malaria case investigation with reactive focal testing and treatment: operational feasibility and lessons learned from low and moderate transmission areas in Amhara Region, Ethiopia.

Malar J 2018 Dec 4;17(1):449. Epub 2018 Dec 4.

PATH Malaria Control and Elimination Partnership in Africa (MACEPA), Addis Ababa, Ethiopia.

Background: When malaria transmission is very low, investigation of passively detected malaria cases and reactive focal testing and treatment (FTAT) in the case and neighbouring households can identify and contain the source and spread of infections.

Methods: Case investigation with reactive FTAT for malaria was implemented in 10 villages in Amhara Region, Ethiopia during the 2014/2015 malaria transmission season. Intervention villages were purposively selected based on the incidence of passively detected Plasmodium falciparum and mixed infections (P. Read More

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December 2018

Comparison of the Ottawa Surgical Competency Operating Room Evaluation (O-SCORE) to a Single-Item Performance Score.

Teach Learn Med 2018 Dec 4:1-8. Epub 2018 Dec 4.

c Department of Innovation in Medical Education , University of Ottawa , Ottawa , Ontario , Canada.

Construct: We compared a single-item performance score with the Ottawa Surgical Competency Operating Room Evaluation (O-SCORE) for their ability in assessing surgical competency.

Background: Surgical programs are adopting competency-based frameworks. The adoption of these frameworks for assessment requires tools that produce accurate and valid assessments of knowledge and technical performance. Read More

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December 2018

High Sensitivity Photonic Crystal Fiber Refractive Index Sensor with Gold Coated Externally Based on Surface Plasmon Resonance.

Micromachines (Basel) 2018 Dec 3;9(12). Epub 2018 Dec 3.

State Key Laboratory of Synthetical Automation for Process Industries, College of Information Science and Engineering, Northeastern University, Shenyang 110819, China.

In this paper we propose a gold-plated photonic crystal fiber (PCF) refractive index sensor based on surface plasmon resonance (SPR), in which gold is coated on the external surface of PCF for easy fabrication and practical detection. The finite element method (FEM) is used for the performance analysis, and the numerical results show that the thickness of the gold film, the refractive index of the analyte, the radius of the air hole in the first layer, the second layer, and the central air hole can affect the sensing properties of the sensor. By optimizing the sensor structure, the maximum wavelength sensitivity can reach 11000 nm/RIU and the maximum amplitude sensitivity can reach 641 RIU. Read More

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December 2018

Ionic Transportation and Dielectric Properties of YF₃:Eu Nanocrystals.

Nanomaterials (Basel) 2018 Dec 1;8(12). Epub 2018 Dec 1.

State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.

The ionic transportation and dielectric properties of YF₃:Eu nanocrystals are investigated by AC impedance spectroscopy. The ion diffusion coefficient and conductivity increase along with the doping concentration and reach their highest values at 4% of Eu. The difference of ionic radius between Eu and Y leads to the structural disorder and lattice strain, which deduces the increase of the ion diffusion coefficient and conductivity before 4% Eu doping; then the interaction of the neighboring doping ions is dominated, which results in the difficulty of ion migration and decreases of the ion diffusion coefficient and conductivity. Read More

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December 2018

Urgent Care Center and Emergency Department Utilization for Non-Emergent Health Conditions: Analysis of Managed Care Beneficiaries.

Popul Health Manag 2018 Dec 4. Epub 2018 Dec 4.

2 Research & Development , Gateway Health Plan, Pittsburgh, Pennsylvania.

The objective was to identify predictors of utilization for urgent care centers (UCCs), emergency departments (EDs), or for both services for non-emergent health conditions among beneficiaries from a managed care organization (MCO) who resided within a 10-mile radius of UCCs. A cross-sectional design was used to analyze 2016 administrative claims data from an MCO that contracted with a UCC with 12 locations (n = 20,107). Outcome variables were number of visits to UCC, ED, or both. Read More

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December 2018

The Architecture of Fat Grafting II: Impact of Cannula Diameter.

Plast Reconstr Surg 2018 Nov;142(5):1219-1225

Pittsburgh, Pa. From the Department of Plastic Surgery, University of Pittsburgh Medical Center.

Background: Fat grafting has emerged as the treatment of choice for soft-tissue augmentation and reconstruction. Variability of volume retention remains the greatest challenge for this technique, often requiring multiple operations to achieve the desired volume. Graft that is placed greater than 2 mm from the recipient bed will undergo necrosis. Read More

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November 2018

Reliability of upper-limb diaphyseal mineral and soft-tissue measurements using peripheral Quantitative Computed Tomography (pQCT).

J Musculoskelet Neuronal Interact 2018 Dec;18(4):438-445

Centre for Exercise and Sports Science Research, Edith Cowan University, Perth, Australia.

Objectives: To quantify between-day reliability of upper-body diaphyseal measurements (radius, ulna, humerus) using peripheral Quantitative Computed Tomography (pQCT).

Methods: Fourteen males (age: 25.8±2. Read More

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December 2018

Bridge Plate Failure with Extensor Tendon Injury: A Case Report and Literature Review.

Case Rep Orthop 2018 29;2018:3256891. Epub 2018 Oct 29.

Division of Hand Surgery, Department of Orthopaedic Surgery, University of Southern California, 1200 N State Street CT-A7D, Los Angeles 90033, USA.

Background: Dorsal spanning plate fixation is an increasingly popular method of fixation for certain distal radius fractures. Published outcomes are encouraging, but complications are still reported.

Methods: We present a case report of a 26-year-old woman with spanning plate breakage and extensor pollicis longus (EPL) metallosis, fraying, and near-complete rupture. Read More

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October 2018

Anomalous material-dependent transport of focused, laser-driven proton beams.

Sci Rep 2018 Dec 3;8(1):17538. Epub 2018 Dec 3.

Center for Energy Research, University of California, San Diego, La Jolla CA, 92093-0417, USA.

Intense lasers can accelerate protons in sufficient numbers and energy that the resulting beam can heat materials to exotic warm (10 s of eV temperature) states. Here we show with experimental data that a laser-driven proton beam focused onto a target heated it in a localized spot with size strongly dependent upon material and as small as 35 μm radius. Simulations indicate that cold stopping power values cannot model the intense proton beam transport in solid targets well enough to match the large differences observed. Read More

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December 2018

Distal locking screw length for volar locking plate fixation of distal radius fractures: Postoperative stability of full-length unicortical versus shorter screws.

Hand Surg Rehabil 2018 Nov 30. Epub 2018 Nov 30.

Department of Orthopedic Surgery, Suwa Central Hospital, 4300 3918503 Tamagawa, Chino, Nagano, Japan.

We compared post-operative distal radius fracture (DRF) displacement after volar locking plate fixation using full-length unicortical and shorter-length distal locking screws. In this non-inferiority, retrospective cohort study, DRFs treated with volar locking plate fixation were evaluated on X-rays. In the full-length group, volar locking plate fixation was performed with full-length unicortical distal locking screws. Read More

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November 2018

Intraocular pressure (IOP) measurements in keratoconic patients: Do variations in IOP respect variations in corneal thickness and corneal curvature?

Cont Lens Anterior Eye 2018 Nov 30. Epub 2018 Nov 30.

Belfast Health and Social Care Trust, Northern Ireland, UK. Electronic address:

Purpose: To explore the relationship between intraocular pressure (IOP) measurements and topographical variations in corneal curvature and corneal thickness in a cohort of keratoconic patients presenting to a newly-established regional Keratoconic diagnostic and monitoring clinic in Northern Ireland.

Methods: IOP was recorded, using a hand held ICARE tonometer, at central, nasal and temporal locations on keratoconic corneae of 27 consecutive patients attending clinic. Pachymetry and sagittal keratometry were recorded in matched locations using the Pentacam Topographer. Read More

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November 2018

Diminishing Interfacial Effects with Decreasing Nanoparticle Size in Polymer-Nanoparticle Composites.

Phys Rev Lett 2018 Nov;121(20):207801

Department of Physics, Wesleyan University, Middletown, Connecticut 06459, USA.

Using molecular simulations on model polymer nanocomposites at fixed filler loading, we show that interfacial polymer dynamics are affected less with decreasing nanoparticle (NP) size. However, the glass transition temperature T_{g} changes substantially more for an extremely small NP. The reason for this apparent contradiction is that the mean NP spacing decreases with decreasing particle size. Read More

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November 2018

Efficient postprocessing technique for fabricating surface nanoscale axial photonics microresonators with subangstrom precision by femtosecond laser.

Opt Lett 2018 Dec;43(23):5729-5732

We demonstrated the subangstrom precise correction of surface nanoscale axial photonics (SNAP) micro-resonators by the femtosecond (fs) laser postprocessing technique for the first time. The internal stress can be induced by fs laser inscriptions in the fiber, causing nanoscale effective radius variation (ERV). However, the obtained ultraprecise fabrication usually undergoes multiple tries. Read More

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December 2018

The assessment of the stability of the tibial component of a novel knee arthroplasty system using radiostereometric analysis.

Bone Joint J 2018 Dec;100-B(12):1579-1584

Division of Orthopaedics, Department of Surgery, QEII Health Sciences Centre, Halifax, Canada; Dalhousie University, Halifax, Canada.

Aims: The introduction of a novel design of total knee arthroplasty (TKA) must achieve outcomes at least as good as existing designs. A novel design of TKA with a reducing radius of the femoral component and a modified cam-post articulation has been released and requires assessment of the fixation to bone. Radiostereometric analysis (RSA) of the components within the first two postoperative years has been shown to be predictive of medium- to long-term fixation. Read More

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December 2018

Is volar locking plate superior to external fixation for distal radius fractures? A comprehensive meta-analysis.

Acta Orthop Traumatol Turc 2018 Sep 29;52(5):334-342. Epub 2018 Jun 29.

Department of Orthopaedic Traumatology, Tianjin Hospital, Tianjin, China. Electronic address:

Objective: The aim of this meta-analysis of randomized controlled trials (RCT) and retrospective cohort studies (CS) regarding the use of volar locking plate (VLP) and external fixation (EF) in distal radius fractures was to determine whether there was any evidence that one treatment was superior to the other.

Methods: The meta-analysis followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. Electrical databases (PubMed, EMBASE and the Cochrane library) were retrieved to find RCTs and CSs met the eligibility criteria. Read More

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September 2018
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