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Goniometry

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https://www.readbyqxmd.com/read/28402736/characterization-of-a-diamond-ground-y-tzp-and-reversion-of-the-tetragonal-to-monoclinic-transformation
#1
L M Candido, Lmg Fais, E B Ferreira, S G Antonio, Lap Pinelli
PURPOSE: To characterize the surface of an yttria-stabilized zirconia (Y-TZP) ceramic after diamond grinding in terms of its crystalline phase, morphology, mean roughness (Ra), and wettability as well as to determine a thermal treatment to reverse the resulting tetragonal to monoclinic (t-m) transformation. METHODS AND MATERIALS: Y-TZP specimens were distributed into different groups according to the actions (or no action) of grinding and irrigation. Grinding was accomplished using a diamond stone at a low speed...
April 12, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28394488/covalent-fluorination-strategies-for-the-surface-modification-of-polydienes
#2
Kevin De Bruycker, Maarten Delahaye, Pieter Cools, Johan Winne, Filip E Du Prez
Nonreactive additives are widely applied to enhance polymer properties but can leach out of the material over time. In this work, two essentially different fluorinated additives bearing a triazolinedione moiety are synthesized and grafted on several polydiene backbones (acrylonitrile-butadiene-styrene, styrene-butadiene, and styrene-isoprene-styrene (SIS) copolymers), either by dip-coating or by reaction in solution. The resulting polymers are analyzed by contact angle goniometry, size exclusion chromatography, and NMR, infrared, and X-ray photoelectron spectroscopy...
April 10, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28391753/viability-of-hand-and-wrist-photogoniometry
#3
Clifton G Meals, Rebecca J Saunders, Sameer Desale, Kenneth R Means
BACKGROUND: No goniometric technique is both maximally convenient and completely accurate, although photogoniometry (ie, picture taking to facilitate digital angle measurement) shows promise in this regard. Our purpose was to test the feasibility and reliability of a photogoniometric protocol designed to measure wrist and digit range of motion in general. METHODS: Two independent observers examined a sample of joints in both normal and abnormal hands according to a photogoniometric protocol...
April 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28389132/the-reliability-and-measurement-error-of-protractor-based-goniometry-of-the-fingers-a-systematic-review
#4
Yara E van Kooij, Alexandra Fink, Maria W Nijhuis-van der Sanden, Caroline M Speksnijder
STUDY DESIGN: Systematic review PURPOSE OF THE STUDY: The purpose was to review the available literature for evidence on the reliability and measurement error of protractor-based goniometry assessment of the finger joints. METHODS: Databases were searched for articles with key words "hand," "goniometry," "reliability," and derivatives of these terms. Assessment of the methodological quality was carried out using the Consensus-Based Standards for the Selection of Health Measurement Instruments checklist...
April 4, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28383920/bidentate-aromatic-thiols-on-gold-new-insight-regarding-the-influence-of-branching-on-the-structure-packing-wetting-and-stability-of-self-assembled-monolayers-on-gold-surfaces
#5
Supachai Rittikulsittichai, Chul Soon Park, Andrew C Jamison, Daniela Rodriguez, Oussama Zenasni, T Randall Lee
A series of 2-phenylpropane-1,3-dithiol derivatives with single (R1ArDT), double (R2ArDT), and triple (R3ArDT) octadecyloxy chains substituted at the 4-, 3,5-, and, 3,4,5-positions, respectively, on the aromatic ring were synthesized and used to form self-assembled monolayers (SAMs) on gold. Insight into the relationship between the surface chain and headgroup packing densities was investigated by varying the number of surface chains for the bidentate adsorbates in these monolayers. Characterization of the resulting SAMs using ellipsometry, X-ray photoelectron spectroscopy, polarization modulation infrared reflection-absorption spectroscopy, and contact angle goniometry revealed that the tailgroups become more comformationally ordered and more densely packed as the number of alkyl chains per adsorbate was increased...
April 6, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28351148/patterning-of-nanoclays-on-positively-charged-self-assembled-monolayers-via-micromolding-in-capillaries
#6
Moritz Buhl, Mark Staniford, Sebastian Lamping, Martin Körsgen, Heinrich F Arlinghaus, Ulrich Kynast, Bart Jan Ravoo
Nanoclays are nanomaterials with versatile adsorptive properties. This contribution describes the generation of micropatterns of a nanoclay ("laponite") on ammonium-terminated, self-assembled monolayers (SAMs) on glass and silicon. Microstructured immobilization of the laponite was performed using micromolding in capillaries (MIMIC). The immobilization was verified using contact angle goniometry, X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), scanning electron microscopy (SEM), time-of-flight secondary ion mass spectrometry (ToF-SIMS), and fluorescence microscopy...
April 6, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28343625/the-effectiveness-of-kinesio-taping-on-pain-and-disability-in-cervical-myofascial-pain-syndrome
#7
Saime Ay, Hatice Ecem Konak, Deniz Evcik, Sibel Kibar
OBJECTIVE: The aim of this study was to investigate the effectiveness of Kinesio Taping and sham Kinesio Taping on pain, pressure pain threshold, cervical range of motion, and disability in cervical myofascial pain syndrome patients (MPS). METHODS: This study was designed as a randomized, double-blind placebo controlled study. Sixty-one patients with MPS were randomly assigned into two groups. Group 1 (n=31) was treated with Kinesio Taping and group 2 (n=30) was treated sham taping five times by intervals of 3 days for 15 days...
March 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28343615/intra-articular-injection-with-triamcinolone-hexacetonide-in-patients-with-rheumatoid-arthritis-prospective-assessment-of-goniometry-and-joint-inflammation-parameters
#8
Rita Nely Vilar Furtado, Flávia Soares Machado, Karine Rodrigues da Luz, Marla Francisca Dos Santos, Monique Sayuri Konai, Roberta Vilela Lopes, Jamil Natour
OBJECTIVES: To evaluate local joint variables after intra-articular injection with triamcinolone hexacetonide in rheumatoid arthritis patients. METHODS: We blindly and prospectively (baseline, 1, 4, 12 and 24 weeks) evaluated metacarpophalangeal, wrist, elbow, shoulder, knee and ankle joints after triamcinolone hexacetonide intra-articular injection by the following outcome measures: visual analogue scale 0-10cm (VAS) for rest pain (VASR); VAS for movement pain (VASM); VAS for joint swelling (VASSw); flexion (FlexG) and extension (ExtG)...
March 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28332396/salinity-dependent-contact-angle-alteration-in-oil-brine-silicate-systems-the-critical-role-of-divalent-cations
#9
M E J Haagh, I Siretanu, M H G Duits, F Mugele
The effectiveness of water flooding oil recovery depends to an important extent on the competitive wetting of oil and water on the solid rock matrix. Here, we use macroscopic contact angle goniometry in highly idealized model systems to evaluate how brine salinity affects the balance of wetting forces and to infer the microscopic origin of the resultant contact angle alteration. We focus, in particular, on two competing mechanisms debated in the literature, namely, double-layer expansion and divalent cation bridging...
April 11, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28291395/prospective-evaluation-of-intra-articular-dextrose-prolotherapy-for-treatment-of-osteoarthritis-in-dogs
#10
J Matthew Sherwood, James K Roush, Laura J Armbrust, Walter C Renberg
The objective of this study was to evaluate intra-articular dextrose prolotherapy for osteoarthritis of the elbow or stifle in dogs in a randomized, double-blind, placebo-controlled, prospective pilot study. Seventeen dogs were evaluated with 10 meeting inclusion criteria for this study. Evaluations included orthopedic exam, visual lameness scoring, Canine Brief Pain Inventory (CBPI), goniometry, kinetic gait analysis, and radiography. Initial lameness score, age, body weight, duration of lameness, and CBPI scores did not differ between groups...
March 14, 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28174448/effects-of-two-different-mobilization-techniques-on-pain-range-of-motion-and-functional-disability-in-patients-with-adhesive-capsulitis-a-comparative-study
#11
Surabhi Agarwal, Shahid Raza, Jamal Ali Moiz, Shahnawaz Anwer, Ahmad H Alghadir
[Purpose] This study aimed to compare the effects of two different mobilization techniques in the management of patients with adhesive capsulitis. [Subjects and Methods] Thirty non-diabetic men and women with adhesive capsulitis were randomly allocated to the reverse distraction group (n=15) or Kaltenborn group (n=15). The reverse distraction technique and Kaltenborn's caudal and posterior glides (grades III and IV) were applied 10-15 times along with conventional physical therapy for 18 treatment sessions in 6 weeks...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28145396/a-randomized-controlled-trial-on-the-immediate-and-long-term-effects-of-arm-slings-on-shoulder-subluxation-in-stroke-patients
#12
Anke VAN Bladel, Gert Lambrecht, Kristine M Oostra, Guy Vanderstraeten, Dirk Cambier
BACKGROUND: Arm slings are often used in clinical practice to support the hemiplegic arm aiming to prevent or treat glenohumeral subluxation. Evidence supporting the corrective effect of slings on subluxation is scarce and long-term studies are lacking. AIM: To determine both the immediate and long-term effect on acromiohumeral distance using the Actimove® sling (BSN medical SA-NV, Leuven, Belgium) and Shoulderlift (V!GO, Belgium) and to determine the effect of slings on pain and passive range of motion of the shoulder in stroke patients with glenohumeral subluxation...
January 30, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28131678/digital-data-acquisition-of-shoulder-range-of-motion-and-arm-motion-smoothness-using-kinect-v2
#13
Rizki Fajar Zulkarnain, Ga-Yeong Kim, Arnold Adikrishna, Han Pyo Hong, Yoon Jeong Kim, In-Ho Jeon
BACKGROUND: Range of motion (ROM) is a clinically important parameter in evaluating joint function. However, dynamic evaluation to determine the quality of the arm motion using digitized measurement is often overlooked during clinical assessment. We evaluated the accuracy of Kinect v2 (Microsoft, Redmond, WA, USA) as a digital tool for measuring shoulder ROM objectively and proposed a concept of motion smoothness reflecting the quality of arm motion. METHODS: Ten male participants were included in a 2-stage experiment...
January 25, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28121157/byproduct-free-route-to-aminosiloxane-monolayers-on-silicon-silicon-dioxide
#14
Kiran Khadka, Nicholas C Strandwitz, Gregory S Ferguson
The chemisorption of N-methyl-aza-2,2,4-trimethylsilacyclopentane from either the solution or the vapor phase produces monolayer films on silicon (oxide) substrates. The formation of a covalent siloxane linkage to the surface by this adsorbate is accompanied by ring opening, which produces no byproduct. The resulting secondary amine reacts with maleic anhydride to produce a carboxylic acid-terminated surface, accompanied by the formation of a stable amide bond. These reactions and their products were characterized by a combination of optical ellipsometry, contact-angle goniometry, and X-ray photoelectron spectroscopy...
February 7, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28117304/effects-of-different-sterilization-methods-on-the-physico-chemical-and-bioresponsive-properties-of-plasma-treated-polycaprolactone-films
#15
Rouba Ghobeira, Charlot Philips, Heidi Declercq, Pieter Cools, Nathalie De Geyter, Ria Cornelissen, Rino Morent
For most tissue engineering applications, surface modification and sterilization of polymers are critical aspects determining the implant success. The first part of this study is thus dedicated to modifying polycaprolactone (PCL) surfaces via plasma treatment using a medium pressure dielectric barrier discharge, while the second part focuses on the sterilization of plasma-modified PCL. Chemical and physical surface changes are examined making use of water contact angle goniometry (WCA), x-ray photoelectron spectroscopy and atomic force microscopy...
January 24, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28087121/upper-extremity-outcome-measures-for-collagen-vi-related-myopathy-and-lama2-related-muscular-dystrophy
#16
Roxanna M Bendixen, Jocelyn Butrum, Mina S Jain, Rebecca Parks, Bonnie Hodsdon, Carmel Nichols, Michelle Hsia, Leslie Nelson, Katherine C Keller, Michelle McGuire, Jeffrey S Elliott, Melody M Linton, Irene C Arveson, Fatou Tounkara, Ruhi Vasavada, Elizabeth Harnett, Monal Punjabi, Sandra Donkervoort, Jahannaz Dastgir, Meganne E Leach, Anne Rutkowski, Melissa Waite, James Collins, Carsten G Bönnemann, Katherine G Meilleur
Congenital muscular dystrophy (CMD) comprises a rare group of genetic muscle diseases that present at birth or early during infancy. Two common subtypes of CMD are collagen VI-related muscular dystrophy (COL6-RD) and laminin alpha 2-related dystrophy (LAMA2-RD). Traditional outcome measures in CMD include gross motor and mobility assessments, yet significant motor declines underscore the need for valid upper extremity motor assessments as a clinical endpoint. This study validated a battery of upper extremity measures in these two CMD subtypes for future clinical trials...
March 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28060387/reversible-median-nerve-impairment-after-three-weeks-of-repetitive-work
#17
Sorosh Tabatabaeifar, Susanne Wulff Svendsen, Birger Johnsen, Gert-Åke Hansson, Anders Fuglsang-Frederiksen, Poul Frost
Objectives The aim of this study was to evaluate the development of impaired median nerve function in relation to hand-intensive seasonal work. We hypothesized that at end-season, median nerve conduction would be impaired and then recover within weeks. Methods Using nerve conduction studies (NCS), we examined median nerve conduction before, during, and after engaging in 22 days of mink skinning. For a subgroup, we used goniometry and surface electromyography to characterize occupational mechanical exposures...
March 1, 2017: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/28003133/myofascial-induction-effects-on-neck-shoulder-pain-in-breast-cancer-survivors-randomized-single-blind-placebo-controlled-crossover-design
#18
Eduardo Castro-Martín, Lucía Ortiz-Comino, Tania Gallart-Aragón, Bernabé Esteban-Moreno, Manuel Arroyo-Morales, Noelia Galiano-Castillo
OBJECTIVES: To (1) investigate the immediate effects of myofascial induction (MI), with placebo electrotherapy as a control, on perceived pain, cervical/shoulder range of motion (ROM), and mood state in breast cancer survivors (BCSs) with shoulder/arm morbidity; and (2) examine the relationships between pain modifications and cervical/shoulder ROM on the side affected by breast cancer. DESIGN: Randomized, single-blind, placebo-controlled crossover study. SETTING: Physical therapy laboratory...
May 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27988377/fabrication-and-characterisation-of-drug-loaded-electrospun-polymeric-nanofibers-for-controlled-release-in-hernia-repair
#19
Ivan J Hall Barrientos, Eleonora Paladino, Sarah Brozio, Melissa K Passarelli, Susan Moug, Richard A Black, Clive G Wilson, Dimitrios A Lamprou
The chemical distribution and mechanical effects of drug compounds in loaded electrospun scaffolds, a potential material for hernia repair mesh, were characterised and the efficacy of the material was evaluated. Polycaprolactone electrospun fibres were loaded with either the antibacterial agent, irgasan, or the broad-spectrum antibiotic, levofloxacin. The samples were subsequently characterised by rheological studies, scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle goniometry (CAG), in vitro drug release studies, antibacterial studies and time-of-flight secondary ion mass spectrometry (ToF-SIMS)...
December 14, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27987681/the-interplay-of-plasma-treatment-and-gold-coating-and-ultra-high-molecular-weight-polyethylene-on-the-cytocompatibility
#20
Zdenka Novotná, Silvie Rimpelová, Petr Juřík, Martin Veselý, Zdenka Kolská, Tomáš Hubáček, Tomáš Ruml, Václav Švorčík
We have investigated the application of Ar plasma for creation of nanostructured ultra high molecular weight polyethylene (PE) surface in order to enhance adhesion of mouse embryonic fibroblasts (L929). The aim of this study was to investigate the effect of the interface between plasma-treated and gold-coated PE on adhesion and spreading of cells. The surface properties of pristine samples and its modified counterparts were studied by different experimental techniques (gravimetry, goniometry and X-ray photoelectron spectroscopy (XPS), electrokinetic analysis), which were used for characterization of treated and sputtered layers, polarity and surface chemical structure, respectively...
February 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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