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https://www.readbyqxmd.com/read/28134632/posterior-medial-canthal-thermoplasty
#1
Kaveh Vahdani, Vladimir Theodor Thaller
PURPOSE: To describe a new, simple, quick, and minimally invasive surgical technique for managing medial canthal tendon laxity. METHODS: The technique works by creating a directed posterior lamellar scar. Sutures are preplaced in firm medial canthal tissue, and a triangular diathermy burn is made between this fixation point and the medial tarsal plate (sparing the canaliculus). This area is then plicated horizontally by bringing the preplaced sutures through the medial tarsal plate...
January 25, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28094239/performance-variation-due-to-stiffness-in-a-tuna-inspired-flexible-foil-model
#2
Mariel-Luisa N Rosic, Patrick J M Thornycroft, Kara L Feilich, Kelsey N Lucas, George V Lauder
Tuna are fast, economical swimmers in part due to their stiff, high aspect ratio caudal fins and streamlined bodies. Previous studies using passive caudal fin models have suggested that while high aspect ratio tail shapes such as a tuna's generally perform well, tail performance cannot be determined from shape alone. In this study, we analyzed the swimming performance of tuna-tail-shaped hydrofoils of a wide range of stiffnesses, heave amplitudes, and frequencies to determine how stiffness and kinematics affect multiple swimming performance parameters for a single foil shape...
January 17, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28092612/evaluation-of-serum-cytokine-levels-in-recurrent-airway-obstruction
#3
A Niedźwiedź, H Borowicz, K Kubiak, J Nicpoń, P Skrzypczak, Z Jaworski, M Cegielski, J Nicpoń
Recurrent airway obstruction (RAO) represents a serious health problem and is traditionally classified as an allergic disease, where contact with an antigen can induce clinical airway inflammation, bronchial hyper-responsiveness and reversible airway obstruction. Previous studies have demonstrated the presence of the Th2 response in the lungs of human patients with asthma and horses with heaves. These cells are involved in the production of cytokines which regulate the synthesis of immunoglobulins. 40 horses were evaluated: 30 horses with RAO and 10 healthy animals...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/27989570/the-effect-of-tannic-acid-on-the-bone-tissue-of-adult-male-wistar-rats-exposed-to-cadmium-and-lead
#4
Ewa Tomaszewska, Piotr Dobrowolski, Anna Winiarska-Mieczan, Małgorzata Kwiecień, Agnieszka Tomczyk, Siemowit Muszyński
Toxic elements such as cadmium (Cd) and lead (Pb) accumulate to the largest extent in bones. Rats at the age of 12 weeks were used to check whether tannic acid (TA) at the concentration of 0.5%, 1.0%, 1.5%. 2.0% or 2.5% would have a protective effect on the structure and properties of bones in the case of exposure to Cd and Pb (diet: 7mg Cd/kg and 50mg Pb/kg) for 12 weeks. The effects of administration of TA in Cd- and Pb-poisoned rats on bone mechanical and geometric properties, trabecular histomorphometry as well as the morphology of articular and growth cartilages were determined...
December 15, 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/27941208/-current-views-on-the-interaction-between-the-treatment-of-osteoporosis-and-cardiovascular-diseases
#5
Tomasz Zapolski, Andrzej Wysokiński
The most common medical conditions after menopause are osteoporosis and atherosclerotic disease. Traditionally these two conditions were considered unrelated and their coexistence has been attributed to independent processess exclusively reated to age. The possible link between cardiovascular disease and osteoporosis stimulates today to analyse not only the evidence of a possible association, but also to identify mutual beneficial and adverse effects of drugs used in these two diseases. That's why, the focus on the interference between osteoporosis treatment and drugs used for atherosclerosis is made...
2016: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27882632/rocking-the-boat-does-perfect-rowing-crew-synchronization-reduce-detrimental-boat-movements
#6
L S Cuijpers, P J M Passos, A Murgia, A Hoogerheide, K A P M Lemmink, H J de Poel
In crew rowing, crew members need to mutually synchronize their movements to achieve optimal crew performance. Intuitively, poor crew coordination is often deemed to involve additional boat movements such as surge velocity fluctuations, heave, pitch, and roll, which would imply lower efficiency (eg, due to increased hydrodynamic drag). The aim of this study was to investigate this alleged relation between crew coordination and boat movements at different stroke rates. Fifteen crews of two rowers rowed in a double scull (ie, a two-person boat) at 18, 22, 26, 30, and 34 strokes per minute...
November 23, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27634410/postoperative-dyspnoea
#7
Jason R Sims, Maurice Enriquez-Sarano, Hector I Michelena
CLINICAL INTRODUCTION: A man in his 50s presented with abscessed aortic valve methicillin-sensitive Staphylococcus aureus endocarditis, received intravenous antibiotics and underwent bioprosthetic aortic valve replacement with removal of all infected tissues. He returned 18 days later with severe dyspnoea, subjective fever and bilateral lower extremity oedema. Physical examination revealed tachypnoea and tachycardia without fever, prominent neck CV waves visible at 90°, left parasternal heave, 3/6 holosystolic murmur across the precordium, lung rales and severe peripheral oedema...
September 15, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27631687/surfactant-foam-flushing-for-in-situ-removal-of-dnapls-in-shallow-soils
#8
Julien Maire, Nicolas Fatin-Rouge
An innovative process combining surfactant foam and surfactant flushing (SF) for the remediation of a shallow saturated soil contaminated with a dense non-aqueous phase liquid (DNAPL) residual was investigated at bench-scale. First, foam was formed by injecting DHSS surfactant and nitrogen in alternation in soil (SAG process) at constant pressure. The effect of pressure gradients set point (≤90kPam(-1)) on DNAPL recovery was investigated. Foam front mobilized DNAPL with a piston-like fast propagation (1.8md(-1)) despite the low pressure gradients...
September 9, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27588248/effect-of-bolting-on-roadway-support-in-extremely-weak-rock
#9
Qinghai Li, Weiping Shi, Zhongcheng Qin
In mine roadway support operations, floor bolting not only played a role in floor heave control, but also in reinforcing roof and its two sides. Correspondingly, bolting of roof and two sides also played a part in floor heave control. To quantify the effect of such bolting, based on roadway support in extremely weak rock, three physical models were produced and tested in laboratory. Through comparison of their displacements in three physical simulation experiments, the reinforcing effect of bolting in extremely weak rock roadways was quantified...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27527123/development-of-a-semiquantitative-histological-score-for-the-diagnosis-of-heaves-using-endobronchial-biopsy-specimens-in-horses
#10
M Bullone, P Hélie, P Joubert, J-P Lavoie
BACKGROUND: Remodeling of the peripheral airways persists during the asymptomatic phase of heaves. Assessing the histology of large bronchi could facilitate the diagnosis of heaves during remission of the disease. HYPOTHESIS: Airway inflammation and remodeling in endobronchial biopsy (EBB) specimens differentiate horses with heaves from controls, independently of their clinical status (exacerbation or remission). ANIMALS: Fourteen healthy horses and 24 horses with heaves...
September 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/27378052/mechanisms-of-anguilliform-locomotion-in-fishes-studied-using-simple-three-dimensional-physical-models
#11
Jeanette L Lim, George V Lauder
Physical models enable researchers to systematically examine complex and dynamic mechanisms of underwater locomotion in ways that would be challenging with freely swimming animals. Previous research on undulatory locomotion, for example, has used rectangular flexible panels that are effectively two-dimensional as proxies for the propulsive surfaces of swimming fishes, but these bear little resemblance to the bodies of elongate eel-like swimming animals. In this paper we use a polyurethane rod (round cross-section) and bar (square cross-section) to represent the body of a swimming Pacific hagfish (Eptatretus stoutii)...
2016: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/27370496/an-apparatus-to-estimate-the-hydrodynamic-coefficients-of-autonomous-underwater-vehicles-using-water-tunnel-testing
#12
N M Nouri, K Mostafapour, R Bahadori
Hydrodynamic coefficients or hydrodynamic derivatives of autonomous underwater vehicles (AUVs) play an important role in their development and maneuverability. The most popular way of estimating their coefficients is to implement captive model tests such as straight line tests and planar motion mechanism (PMM) tests in the towing tanks. This paper aims to develop an apparatus based on planar experiments of water tunnel in order to estimate hydrodynamic derivatives due to AUVs' acceleration and velocity. The capability of implementing straight line tests and PMM ones using mechanical oscillators located in the downstream flow of the model is considered in the design procedure of the system...
June 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27162252/jmw-turner-keelmen-heaving-in-coals-by-moonlight-1835
#13
Mike McKiernan
No abstract text is available yet for this article.
June 2016: Occupational Medicine
https://www.readbyqxmd.com/read/27157637/puzzles-in-practice-splenic-vein-thrombosis
#14
Brittany McIntyre, Melanie Marsh, Jeffrey Walden
This report details a 58-year-old gentleman who presented to his outpatient primary care physician's clinic several times over four weeks for ongoing epigastric pain radiating into his left flank, dry heaving, and constipation. He was presumed to have gastritis at each visit and prescribed escalating doses of proton pump inhibitors. Due to the unrelenting pain, he eventually was admitted to the hospital and diagnosed with splenic vein thrombosis after computed tomography imaging of the abdomen. Our literature search revealed that pancreatic pathology is overwhelmingly the contributing factor to splenic vein thrombosis...
June 2016: Postgraduate Medicine
https://www.readbyqxmd.com/read/27118906/poromechanical-behaviour-of-a-surficial-geological-barrier-during-fluid-injection-into-an-underlying-poroelastic-storage-formation
#15
A P S Selvadurai, Jueun Kim
A competent low permeability and chemically inert geological barrier is an essential component of any strategy for the deep geological disposal of fluidized hazardous material and greenhouse gases. While the processes of injection are important to the assessment of the sequestration potential of the storage formation, the performance of the caprock is important to the containment potential, which can be compromised by the development of cracks and other defects that might be activated during and after injection...
March 2016: Proceedings. Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/27046043/segregated-ice-growth-in-a-suspension-of-colloidal-particles
#16
Julia M H Schollick, Robert W Style, Arran Curran, John S Wettlaufer, Eric R Dufresne, Patrick B Warren, Krassimir P Velikov, Roel P A Dullens, Dirk G A L Aarts
We study the freezing of a dispersion of colloidal silica particles in water, focusing on the formation of segregated ice in the form of ice lenses. Local temperature measurements in combination with video microscopy give insight into the rich variety of factors that control ice lens formation. We observe the initiation of the lenses, their growth morphology, and their final thickness and spacing over a range of conditions, in particular the effect of the particle packing and the cooling rate. We find that increasing the particle density drastically reduces the thickness of lenses but has little effect on the lens spacing...
April 28, 2016: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/27016562/modification-of-a-high-throughput-automatic-microbial-cell-enumeration-system-for-shipboard-analyses
#17
Christin M Bennke, Greta Reintjes, Martha Schattenhofer, Andreas Ellrott, Jörg Wulf, Michael Zeder, Bernhard M Fuchs
In the age of ever-increasing "-omics" studies, the accurate and statistically robust determination of microbial cell numbers within often-complex samples remains a key task in microbial ecology. Microscopic quantification is still the only method to enumerate specific subgroups of microbial clades within complex communities by, for example, fluorescence in situ hybridization (FISH). In this study, we improved an existing automatic image acquisition and cell enumeration system and adapted it for usage at high seas on board an oceanographic research ship...
June 1, 2016: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/26932307/analysis-of-genomic-copy-number-variation-in-equine-recurrent-airway-obstruction-heaves
#18
S Ghosh, P J Das, C M McQueen, V Gerber, C E Swiderski, J-P Lavoie, B P Chowdhary, T Raudsepp
We explored the involvement of genomic copy number variants (CNVs) in susceptibility to recurrent airway obstruction (RAO), or heaves-an asthmalike inflammatory disease in horses. Analysis of 16 RAO-susceptible (cases) and six RAO-resistant (control) horses on a custom-made whole-genome 400K equine tiling array identified 245 CNV regions (CNVRs), 197 previously known and 48 new, distributed on all horse autosomes and the X chromosome. Among the new CNVRs, 30 were exclusively found in RAO cases and were further analyzed by quantitative PCR, including additional cases and controls...
June 2016: Animal Genetics
https://www.readbyqxmd.com/read/26926661/endoscopic-evaluation-of-angiogenesis-in-the-large-airways-of-horses-with-heaves-using-narrow-band-imaging
#19
N Herteman, M Bullone, J-P Lavoie
BACKGROUND: Heaves is a severe debilitating condition of horses, characterized by lower airway inflammation and permanent structural changes of the bronchial wall. Chronic inflammation promotes the formation of new vessels, a phenomenon known as angiogenesis. Narrow band imaging (NBI) endoscopy is a noninvasive technique that enhances the visualization of submucosal vessels, and commonly is employed for the study of angiogenesis in human patients. OBJECTIVES: Using NBI, we aimed to determine whether or not the central airways of horses with heaves undergo angiogenesis...
March 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/26906576/study-on-the-mechanism-of-a-charge-coupled-device-detector-irradiated-by-millisecond-pulse-laser-under-functional-loss
#20
Mingxin Li, Guangyong Jin, Yong Tan, Ming Guo, Pengbo Zhu
The damage mechanism of a CCD detector was studied by building an experimental system containing a millisecond pulse laser irradiating a CCD detector. The experimental results show that the damage on the CCD detector was mainly thermal damage, along with mechanical damage. A melting phenomenon was caused by the thermal damage, so that a crater was observed on the surface of the CCD detector. Caused by melting of the polysilicon electrodes and a temperature rise in the silicon dioxide, the shift register impedance values were sharply reduced...
February 20, 2016: Applied Optics
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