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https://www.readbyqxmd.com/read/29150382/changes-in-fall-risk-and-functional-status-in-women-aged-50-years-and-older-after-distal-radius-fracture-a-prospective-1-year-follow-up-study
#1
Katie Crockett, Jonathan P Farthing, Jenny Basran, Vanina Dal Bello-Haas, Geoffrey Johnston, Charlene R A Haver, Catherine M Arnold
STUDY DESIGN: Prospective cohort study. INTRODUCTION: Few studies have evaluated the course of recovery after distal radius fracture (DRF) when functional decline and fracture risk may be affected. PURPOSE OF THE STUDY: The purpose of this study was to determine changes in overall functional status over the first year after a DRF in women aged 50 years and older. METHODS: Seventy-eight women were assessed for balance, balance confidence, lower extremity strength, gait speed, fall history, physical activity levels, and self-reported wrist pain and function (Patient-Rated Wrist Evaluation) at weeks 1, 3, 9, 12, 26, and 52 after DRF...
November 14, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/29149651/anthropometric-measurements-in-iranian-men
#2
Jaber Gharehdaghi, Maryam Baazm, Masoud Ghadipasha, Sadra Solhi, Farhoud Toutounchian
There is inevitable need for data regarding anthropometric measurements of each community's population. These anthropometric data have various applications, including health assessment, industrial designing, plastic & orthopedic surgery, nutritional studies, anatomical studies and forensic medicine investigations. Anthropometric parameters vary from race to race throughout the world, hence providing an anthropometric profile model of residents of different geographic regions seems to be necessary. To our knowledge, there is no report of bone parameters of the Iranian population...
November 14, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29148734/unraveling-the-role-of-structural-order-in-the-transformation-of-electrical-conductivity-in-ca2fecoo6-%C3%AE-casrfecoo6-%C3%AE-and-sr2fecoo6-%C3%AE
#3
Ram Krishna Hona, Ashfia Huq, Farshid Ramezanipour
The ability to control the electrical conductivity of solid-state oxides using structural parameters has been demonstrated. A correlation has been established between the electrical conductivity and structural order in a series of oxygen-deficient perovskites using X-ray and neutron diffraction, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and electrical conductivity studies at a wide temperature range, 25-800 °C. The crystal structure of CaSrFeCoO6-δ has been determined, and its stark contrast to Ca2FeCoO6-δ and Sr2FeCoO6-δ has been demonstrated...
November 17, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29148715/ultrafast-long-range-charge-separation-in-nonfullerene-organic-solar-cells
#4
Yasunari Tamai, Yeli Fan, Vincent O Kim, Kostiantyn Ziabrev, Akshay Rao, Stephen Barlow, Seth R Marder, Richard H Friend, S Matthew Menke
Rapid, long-range charge separation in polymer-fullerene organic solar cells (OSCs) enables electrons and holes to move beyond their Coulomb capture radius and overcome geminate recombination. Understanding the nature of charge generation and recombination mechanisms in efficient, nonfullerene-acceptor-based OSCs are critical to further improve device performance. Here we report charge dynamics in an OSC using a perylene diimide (PDI) dimer acceptor. We use transient absorption spectroscopy to track the time evolution of electroabsorption caused by the dipolar electric field generated between electron-hole pairs as they separate after ionization at the donor-acceptor interface...
November 17, 2017: ACS Nano
https://www.readbyqxmd.com/read/29148340/the-effects-of-chains-on-the-measurement-of-competition-in-the-nursing-home-industry
#5
Richard A Hirth, Qing Zheng, David C Grabowski, David G Stevenson, Orna Intrator, Jane Banaszak-Holl
Consistently accounting for more than 50% of the nursing homes in the United States, corporate chains have played an important role in the industry for several decades. However, few studies have explicitly considered the role of chains in measuring competition in nursing home markets. In this study, we use a newly developed database tracking common ownership over a period of nearly two decades to compare chain-adjusted and unadjusted measures of competition at the county and 25 km fixed-radius levels and explore how the differences would affect the assessment of local market structure...
April 1, 2017: Medical Care Research and Review: MCRR
https://www.readbyqxmd.com/read/29148205/inhaled-corticosteroids-and-the-risks-of-low-energy-fractures-in-patients-with-chronic-airway-diseases-a-propensity-score-matched-study
#6
Chun-Hao Tsai, Lin-Yu Laio, Cheng-Li Lin, Wei-Sheng Chung
BACKGROUND AND AIMS: Inhaled corticosteroids (ICSs) are crucial anti-inflammatory medications for chronic airway diseases. Studies investigating the relationship between ICSs and fractures in Asian populations are scant. We investigated whether ICSs increased the risk of low-energy fractures in patients with chronic airway diseases. METHODS: We used the Longitudinal Health Insurance Database to select patients aged 20 years and older with chronic airway diseases (asthma and COPD) between 2000 and 2011 as the base cohort...
November 17, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29147835/automatic-localization-of-the-left-ventricular-blood-pool-centroid-in-short-axis-cardiac-cine-mr-images
#7
Li Kuo Tan, Yih Miin Liew, Einly Lim, Yang Faridah Abdul Aziz, Kok Han Chee, Robert A McLaughlin
In this paper, we develop and validate an open source, fully automatic algorithm to localize the left ventricular (LV) blood pool centroid in short axis cardiac cine MR images, enabling follow-on automated LV segmentation algorithms. The algorithm comprises four steps: (i) quantify motion to determine an initial region of interest surrounding the heart, (ii) identify potential 2D objects of interest using an intensity-based segmentation, (iii) assess contraction/expansion, circularity, and proximity to lung tissue to score all objects of interest in terms of their likelihood of constituting part of the LV, and (iv) aggregate the objects into connected groups and construct the final LV blood pool volume and centroid...
November 17, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29147749/correction-to-characterization-of-trabecular-bone-microstructure-in-premenopausal-women-with-distal-radius-fractures
#8
T D Rozental, F Johannesdottir, K C Walley, M L Bouxsein
Owing to an oversight by the corresponding author, the name of the third author of this article was rendered wrongly. His correct name is Kempland C. Walley.
November 16, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/29146990/how-gluttonous-cell-aggregates-clear-substrates-coated-with-microparticles
#9
Grégory Beaune, Andy Y W Lam, Sylvie Dufour, Françoise M Winnik, Françoise Brochard-Wyart
We study the spreading of cell aggregates deposited on adhesive substrates decorated with microparticles (MPs). A cell monolayer expands around the aggregate. The cells on the periphery of the monolayer take up the MPs, clearing the substrate as they progress and forming an aureole of cells filled with MPs. We study the dynamics of spreading and determine the width of the aureole and the level of MP internalization in cells as a function of MP size, composition, and density. From the radius and width of the aureole, we quantify the volume fraction of MPs within the cell, which leads to an easy, fast, and inexpensive measurement of the cell - particle internalization...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29145504/quantifying-performance-on-an-outdoor-agility-drill-using-foot-mounted-inertial-measurement-units
#10
Antonia M Zaferiou, Lauro Ojeda, Stephen M Cain, Rachel V Vitali, Steven P Davidson, Leia Stirling, Noel C Perkins
Running agility is required for many sports and other physical tasks that demand rapid changes in body direction. Quantifying agility skill remains a challenge because measuring rapid changes of direction and quantifying agility skill from those measurements are difficult to do in ways that replicate real task/game play situations. The objectives of this study were to define and to measure agility performance for a (five-cone) agility drill used within a military obstacle course using data harvested from two foot-mounted inertial measurement units (IMUs)...
2017: PloS One
https://www.readbyqxmd.com/read/29145482/combination-of-ultrasound-and-rtpa-enhances-fibrinolysis-in-an-in-vitro-clot-system
#11
Julia Masomi-Bornwasser, Philipp Winter, Hendrik Müller-Werkmeister, Susanne Strand, Jochem König, Oliver Kempski, Florian Ringel, Sven R Kantelhardt, Naureen Keric
BACKGROUND: Catheter-based lysis with recombinant tissue plasminogen activator (rtPA) is a well-established therapy for spontaneous intracerebral hemorrhage (ICH). The effectiveness of this therapy can be increased with ultrasound, but the optimal conditions are not yet clearly established. Using a novel in vitro system of blood clots previously developed by our group, we investigated various parameters of intralesional sonothrombolysis using an endosonography catheter in combination with rtPA...
2017: PloS One
https://www.readbyqxmd.com/read/29143026/tunable-synthetic-control-of-soft-polymeric-nanoparticle-morphology
#12
Halie J Martin, B Tyler White, Christopher J Scanlon, Tomonori Saito, Mark D Dadmun
With a growing variety of nanoparticles available, research probing the influence of particle deformability, morphology, and topology on the behavior of all polymer nanocomposites is also increasing. In particular, the behavior of soft polymeric nanoparticles in polymer nanocomposites has displayed unique behavior, but their precise performance depends intimately on the internal structure and morphology of the nanoparticle. With the goal of providing guidelines to control the structure and morphology of soft polymeric nanoparticles, we have examined monomer starved semi-batch nano-emulsion polymerizations that form organic, soft nanoparticles, to correlate the precise structure of the nanoparticle to the rate of monomer addition and crosslinking density...
November 16, 2017: Soft Matter
https://www.readbyqxmd.com/read/29142437/docking-based-screening-of-ficus-religiosa-phytochemicals-as-inhibitors-of-human-histamine-h2-receptor
#13
Amit Chaudhary, Birendra Singh Yadav, Swati Singh, Pramod Kumar Maurya, Alok Mishra, Shweta Srivastva, Pritish Kumar Varadwaj, Nand Kumar Singh, Ashutosh Mani
Background: Ficus religiosa L. is generally known as Peepal and belongs to family Moraceae. The tree is a source of many compounds having high medicinal value. In gastrointestinal tract, histamine H2 receptors have key role in histamine-stimulated gastric acid secretion. Their over stimulation causes its excessive production which is responsible for gastric ulcer. Objective: This study aims to screen the range of phytochemicals present in F. religiosa for binding with human histamine H2 and identify therapeutics for a gastric ulcer from the plant...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29142258/in-situ-detection-of-the-protein-corona-in-complex-environments
#14
Monica Carril, Daniel Padro, Pablo Del Pino, Carolina Carrillo-Carrion, Marta Gallego, Wolfgang J Parak
Colloidal nanoparticles (NPs) are a versatile potential platform for in vivo nanomedicine. Inside blood circulation, NPs may undergo drastic changes, such as by formation of a protein corona. The in vivo corona cannot be completely emulated by the corona formed in blood. Thus, in situ detection in complex media, and ultimately in vivo, is required. Here we present a methodology for determining protein corona formation in complex media. NPs are labeled with (19)F and their diffusion coefficient measured using (19)F diffusion-ordered nuclear magnetic resonance (NMR) spectroscopy...
November 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/29141430/lithium-atoms-on-helium-nanodroplets-rydberg-series-and-ionization-dynamics
#15
Florian Lackner, Günter Krois, Wolfgang E Ernst
The electronic excitation spectrum of lithium atoms residing on the surface of helium nanodroplets is presented and analyzed employing a Rydberg-Ritz approach. Utilizing resonant two-photon ionization spectroscopy, two different Rydberg series have been identified: one assigned to the nS(Σ) series and the other with predominantly nP(Π) character. For high Rydberg states, which have been resolved up to n = 13, the surrounding helium effectively screens the valence electron from the Li ion core, as indicated by the apparent red-shift of Li transitions and lowered quantum defects on the droplet with respect to their free atom counterparts...
November 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29141425/macromolecules-with-amphiphilic-monomer-units-at-interface-of-two-immiscible-liquids
#16
A A Glagoleva, V V Vasilevskaya
The adsorption of macromolecules with amphiphilic monomer units at the liquid-liquid interface was studied. The amphiphilic structure of monomer units with groups selectively interacting with α and β liquids was described by the A-graft-B dumbbell model. The calculations were performed for the symmetrical interaction of A and B groups with liquids, different selectivity parameters ξ and degree of polymerization N. The simulations indicate a three-step adsorption scenario, including non-adsorbed, weak and strong localization states...
November 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29141368/-long-term-efficacy-of-open-reduction-and-internal-fixation-versus-external-fixation-for-unstable-distal-radius-fractures-a-meta-analysis
#17
Z Yang, Z Z Yuan, J X Ma, X L Ma
Objective: To make a systematic assessment of the Long-term efficacy of open reduction and internal fixation versus external fixation for unstable distal radius fractures. Methods: A computer-based online search of PubMed, ScienceDirect, EMBASE, BIOSIS, Springer and Cochrane Library were performed. The randomized and controlled trials of open reduction and internal fixation versus external fixation for unstable distal radius fractures were collected. The included trials were screened out strictly based on the criterion of inclusion and exclusion...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29140284/crack-propagation-calculations-for-optical-fibers-under-static-bending-and-tensile-loads-using-continuum-damage-mechanics
#18
Yunxia Chen, Yuxuan Cui, Wenjun Gong
Static fatigue behavior is the main failure mode of optical fibers applied in sensors. In this paper, a computational framework based on continuum damage mechanics (CDM) is presented to calculate the crack propagation process and failure time of optical fibers subjected to static bending and tensile loads. For this purpose, the static fatigue crack propagation in the glass core of the optical fiber is studied. Combining a finite element method (FEM), we use the continuum damage mechanics for the glass core to calculate the crack propagation path and corresponding failure time...
November 15, 2017: Sensors
https://www.readbyqxmd.com/read/29138875/variant-course-of-extensor-pollicis-brevis-tendon-in-the-third-extensor-compartment
#19
Shiro Sugiura, Yusuke Matsuura, Takane Suzuki, Satoru Nishikawa, Chisato Mori, Kazuki Kuniyoshi
INTRODUCTION: According to the anatomical literature, the extensor pollicis brevis (EPB) tendon passes through the first compartment and enters the base of the proximal phalanx of the thumb. There have been a few reports on the different types of supernumerary EPB tendons; however, an unusual course of the EPB tendon is extremely rare. MATERIALS AND METHODS: During routine cadaveric dissection in the Department of Gross Anatomy, we detected an variant EPB muscle in a 96-year-old fresh female cadaver...
November 14, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29138790/high-efficiency-single-cell-encapsulation-and-size-selective-capture-of-cells-in-picoliter-droplets-based-on-hydrodynamic-micro-vortices
#20
Gopakumar Kamalakshakurup, Abraham P Lee
Single cell analysis has emerged as a paradigm shift in cell biology to understand the heterogeneity of individual cells in a clone for pathological interrogation. Microfluidic droplet technology is a compelling platform to perform single cell analysis by encapsulating single cells inside picoliter-nanoliter (pL-nL) volume droplets. However, one of the primary challenges for droplet based single cell assays is single cell encapsulation in droplets, currently achieved either randomly, dictated by Poisson statistics, or by hydrodynamic techniques...
November 15, 2017: Lab on a Chip
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