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https://www.readbyqxmd.com/read/28203015/-effect-of-thermal-conductivity-on-apical-sealing-ability-of-4-dental-gutta-percha-cones
#1
C Fan, C Y Yuan, J C Zhang, X Y Wang
OBJECTIVE: To investigate the effect of thermal conductivity on the apical sealing ability of different dental gutta-percha cones during the warm vertical condensation obturation. METHODS: Four kinds of dental gutta-percha cones were used in this study: Bio-GP points (BP, B&L, Korea), large-tapered gutta-percha (DP, DENTSPLY, America), PROTAPER Universal gutta-percha points (DPP, DENTSPLY, America) and mtwo gutta-percha points (VP, VDW, Germany). Volume differences method was used to determine the main components and the thermal conductivity determinator was used to measure the thermal conductivity of these dental gutta-percha cones...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28181687/acupuncture-for-acute-hordeolum
#2
REVIEW
Ke Cheng, Andrew Law, Menghu Guo, L Susan Wieland, Xueyong Shen, Lixing Lao
BACKGROUND: Hordeolum is an acute, purulent inflammation of the eyelid margin usually caused by obstructed orifices of the sebaceous glands of the eyelid. The condition, which affects sebaceous glands internally or externally, is common. When the meibomian gland in the tarsal plate is affected, internal hordeolum occurs, while when the glands of Zeis or Moll associated with eyelash follicles are affected, external hordeolum, or stye occurs. The onset of hordeolum is usually self limited, and may resolve in about a week with spontaneous drainage of the abscess...
February 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28170093/topical-treatments-for-blepharokeratoconjunctivitis-in-children
#3
REVIEW
Michael O'Gallagher, Catey Bunce, Melanie Hingorani, Frank Larkin, Stephen Tuft, Annegret Dahlmann-Noor
BACKGROUND: Blepharokeratoconjunctivitis (BKC) is a type of inflammation of the surface of the eye and eyelids that involves changes of the eyelids, dysfunction of the meibomian glands, and inflammation of the conjunctiva and cornea. Chronic inflammation of the cornea can lead to scarring, vascularisation and opacity. BKC in children can cause significant symptoms including irritation, watering, photophobia and loss of vision from corneal opacity, refractive error or amblyopia.Treatment of BKC is directed towards modification of meibomian gland disease and the bacterial flora of lid margin and conjunctiva, and control of ocular surface inflammation...
February 7, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28128860/assessment-of-small-sensory-fiber-function-across-the-spectrum-of-severity-in-carpal-tunnel-syndrome-patients
#4
Christopher Clarke, Christopher Christensen, Matthew W T Curran, K Ming Chan
INTRODUCTION: In compressive neuropathies, large myelinated nerve fibers are generally thought to be more susceptible. In this study, we investigated small myelinated Aδ and unmyelinated C fiber function in patients with mild, moderate, and severe carpal tunnel syndrome. METHODS: Forty-four healthy controls and 81 carpal tunnel syndrome patients in the mild, moderate, or severe categories were recruited. Small fiber sensation in the affected hand was determined with quantitative sensory testing...
January 27, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28094515/nanoporous-materials-for-the-onboard-storage-of-natural-gas
#5
K Vasanth Kumar, Kathrin Preuss, Maria-Magdalena Titirici, Francisco Rodríguez-Reinoso
Climate change, global warming, urban air pollution, energy supply uncertainty and depletion, and rising costs of conventional energy sources are, among others, potential socioeconomic threats that our community faces today. Transportation is one of the primary sectors contributing to oil consumption and global warming, and natural gas (NG) is considered to be a relatively clean transportation fuel that can significantly improve local air quality, reduce greenhouse-gas emissions, and decrease the energy dependency on oil sources...
January 17, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28068454/non-surgical-interventions-for-acute-internal-hordeolum
#6
REVIEW
Kristina Lindsley, Jason J Nichols, Kay Dickersin
BACKGROUND: A hordeolum is a common, painful inflammation of the eyelid margin that is usually caused by a bacterial infection. The infection affects oil glands of the eyelid and can be either internal or external. In many cases, the lesion drains spontaneously and resolves without treatment; however, the inflammation can spread to other ocular glands or tissues, and recurrences are common. If unresolved, an acute internal hordeolum can become chronic, or can develop into a chalazion...
January 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28045355/climate-anchovy-and-sardine
#7
David M Checkley, Rebecca G Asch, Ryan R Rykaczewski
Anchovy and sardine populated productive ocean regions over hundreds of thousands of years under a naturally varying climate, and are now subject to climate change of equal or greater magnitude occurring over decades to centuries. We hypothesize that anchovy and sardine populations are limited in size by the supply of nitrogen from outside their habitats originating from upwelling, mixing, and rivers. Projections of the responses of anchovy and sardine to climate change rely on a range of model types and consideration of the effects of climate on lower trophic levels, the effects of fishing on higher trophic levels, and the traits of these two types of fish...
January 3, 2017: Annual Review of Marine Science
https://www.readbyqxmd.com/read/27993218/magnetic-compression-anastomosis-for-enteroenterostomy-under-peritonitis-conditions-in-dogs
#8
Hongke Zhang, Kai Tan, Chao Fan, Jingwei Du, Jiangbin Li, Tao Yang, Yi Lv, Xilin Du
BACKGROUND: The risk of complications and mortality are high after enteroenterostomy in severe peritonitic conditions. Magnetic compression anastomosis (MCA) is a sutureless technique of high efficacy and safety. The purpose of this study was to compare the efficacy of MCA for enteroenterostomy with stapled and hand-sewn techniques under peritonitic conditions. METHODS: The peritonitic conditions were created by puncturing the colon with a circular blade in 27 mongrel dogs...
February 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/27982402/physical-methods-for-the-treatment-of-fever-in-critically-ill-patients-a-randomized-controlled-trial
#9
Patrícia de Oliveira Salgado, Ludmila Christiane Rosa da Silva, Priscila Marinho Aleixo Silva, Tânia Couto Machado Chianca
OBJECTIVE: To evaluate the effects of physical methods of reducing body temperature (ice pack and warm compression) in critically ill patients with fever. METHOD: A randomized clinical trial involving 102 adult patients with tympanic temperature ≥ 38.3°C of an infectious focus, and randomized into three groups: Intervention I - ice pack associated with antipyretic; Intervention II - warm compress associated with antipyretic; and Control - antipyretic. Tympanic temperature was measured at 15 minute intervals for 3 hours...
September 2016: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/27981857/effective-modified-conservative-tissue-preserving-protocol-to-treat-stage-i-axillary-hidradenitis-suppurativa-a-prospective-cohort-study-of-627-patients-with-five-years-follow-up
#10
Bader Hamza Shirah, Hamza Asaad Shirah
BACKGROUND: Hidradenitis suppurativa is a chronic inflammatory cutaneous disorder that involves the infundibular terminal follicles in areas rich in apocrine glands and associated with the formation of abscesses and fistulating sinus. The clinical course is variable, and definitive evidence-based guidelines for the management are not well-established. Conservative treatment is controversial, and surgical excision is the recommended method. Herein, we aim to analyze the results of a modified conservative tissue preserving management protocol for stage I axillary hidradenitis suppurativa...
December 16, 2016: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/27967139/pair-potentials-for-warm-dense-matter-and-their-application-to-x-ray-thomson-scattering-in-aluminum-and-beryllium
#11
L Harbour, M W C Dharma-Wardana, D D Klug, L J Lewis
Ultrafast laser experiments yield increasingly reliable data on warm dense matter, but their interpretation requires theoretical models. We employ an efficient density functional neutral-pseudoatom hypernetted-chain (NPA-HNC) model with accuracy comparable to ab initio simulations and which provides first-principles pseudopotentials and pair potentials for warm-dense matter. It avoids the use of (i) ad hoc core-repulsion models and (ii) "Yukawa screening" and (iii) need not assume ion-electron thermal equilibrium...
November 2016: Physical Review. E
https://www.readbyqxmd.com/read/27942990/extratarsal-presentation-of-chalazion
#12
Moohwan Chang, Jiwoong Park, Sungeun E Kyung
PURPOSE: We report a case of atypical, extratarsal chalazion referred with a history of a chronic inflammatory mass found on the edge of the lower eyelid. METHODS: A 3-year-old female developed a small mass on the medial side of the right lower lid in 4-month duration. She was seen by her ophthalmologist and the diagnosis of a chalazion was made. Over the ensuing one month with warm compression, the lesion subsided and the new lesion appeared away from the edge on the lateral eyelid 3 months ago...
December 9, 2016: International Ophthalmology
https://www.readbyqxmd.com/read/27829452/genetic-impairment-of-parasite-myosin-motors-uncovers-the-contribution-of-host-cell-membrane-dynamics-to-toxoplasma-invasion-forces
#13
Marion Bichet, Bastien Touquet, Virginie Gonzalez, Isabelle Florent, Markus Meissner, Isabelle Tardieux
BACKGROUND: The several-micrometer-sized Toxoplasma gondii protozoan parasite invades virtually any type of nucleated cell from a warm-blooded animal within seconds. Toxoplasma initiates the formation of a tight ring-like junction bridging its apical pole with the host cell membrane. The parasite then actively moves through the junction into a host cell plasma membrane invagination that delineates a nascent vacuole. Recent high resolution imaging and kinematics analysis showed that the host cell cortical actin dynamics occurs at the site of entry while gene silencing approaches allowed motor-deficient parasites to be generated, and suggested that the host cell could contribute energetically to invasion...
November 9, 2016: BMC Biology
https://www.readbyqxmd.com/read/27739803/high-pressure-structural-changes-in-liquid-silica
#14
A Denoeud, S Mazevet, F Guyot, F Dorchies, J Gaudin, A Ravasio, E Brambrink, A Benuzzi-Mounaix
The structural properties of liquid silica at high pressure and moderate temperature conditions, also referred to as the warm dense matter regime, were investigated using time-resolved K-edge x-ray absorption spectroscopy and ab initio calculations. We used a nanosecond laser beam to compress uniformly a solid SiO_{2} target and a picosecond laser beam to generate a broadband x-ray source. We obtained x-ray absorption spectra at the Si K edge over a large pressure-temperature domain to probe the liquid phase up to 3...
September 2016: Physical Review. E
https://www.readbyqxmd.com/read/27711116/pressure-infusion-cuff-and-blood-warmer-during-massive-transfusion-an-experimental-study-about-hemolysis-and-hypothermia
#15
Thomas G Poder, Denise Pruneau, Josée Dorval, Louis Thibault, Jean-François Fisette, Suzanne K Bédard, Annie Jacques, Patrice Beauregard
BACKGROUND: Blood warmers were developed to reduce the risk of hypothermia associated with the infusion of cold blood products. During massive transfusion, these devices are used with compression sleeve, which induce a major stress to red blood cells. In this setting, the combination of blood warmer and compression sleeve could generate hemolysis and harm the patient. We conducted this study to compare the impact of different pressure rates on the hemolysis of packed red blood cells and on the outlet temperature when a blood warmer set at 41...
2016: PloS One
https://www.readbyqxmd.com/read/27627404/dissociation-along-the-principal-hugoniot-of-the-laser-m%C3%A3-gajoule-ablator-material
#16
P Colin-Lalu, V Recoules, G Salin, T Plisson, E Brambrink, T Vinci, R Bolis, G Huser
Glow discharge polymer hydrocarbon (GDP-CH) is used as the ablator material in inertial confinement fusion (ICF) capsules for the Laser Mégajoule and National Ignition Facility. Due to its fabrication process, GDP-CH chemical composition and structure differ from commercially available plastics and detailed knowledge of its properties in the warm dense matter regime is needed to achieve accurate design of ICF capsules. First-principles ab initio simulations of the GDP-CH principal Hugoniot up to 8 Mbar were performed using the quantum molecular dynamics (QMD) code abinit and showed that atomic bond dissociation has an effect on the compressibility...
August 2016: Physical Review. E
https://www.readbyqxmd.com/read/27594570/-skillful-care-for-chronic-vascular-wounds
#17
C Goullet de Rugy, I Lazareth, C You, A Stansal, P Priollet
In vascular medicine, wound care requires pluridisciplinary expertise and nursing skill. Care must be perfectly adapted to each individual patient, the specificities of each particular wound, and the underlying vascular disease. The goal is to achieve wound healing. Inappropriate care can retard healing or even aggravate the wound. The skin should be cleaned with water a non-allergic detergent and should concern the entire limb in addition to the wound itself. Fibrin or necrosis detersion is an important step that can be painful...
September 2016: Journal des Maladies Vasculaires
https://www.readbyqxmd.com/read/27573051/fish-ecology-and-evolution-in-the-world-s-oxygen-minimum-zones-and-implications-of-ocean-deoxygenation
#18
REVIEW
N D Gallo, L A Levin
Oxygen minimum zones (OMZs) and oxygen limited zones (OLZs) are important oceanographic features in the Pacific, Atlantic, and Indian Ocean, and are characterized by hypoxic conditions that are physiologically challenging for demersal fish. Thickness, depth of the upper boundary, minimum oxygen levels, local temperatures, and diurnal, seasonal, and interannual oxycline variability differ regionally, with the thickest and shallowest OMZs occurring in the subtropics and tropics. Although most fish are not hypoxia-tolerant, at least 77 demersal fish species from 16 orders have evolved physiological, behavioural, and morphological adaptations that allow them to live under the severely hypoxic, hypercapnic, and at times sulphidic conditions found in OMZs...
2016: Advances in Marine Biology
https://www.readbyqxmd.com/read/27562476/ice-vii-from-aqueous-salt-solutions-from-a-glass-to-a-crystal-with-broken-h-bonds
#19
S Klotz, K Komatsu, F Pietrucci, H Kagi, A-A Ludl, S Machida, T Hattori, A Sano-Furukawa, L E Bove
It has been known for decades that certain aqueous salt solutions of LiCl and LiBr readily form glasses when cooled to below ≈160 K. This fact has recently been exploited to produce a « salty » high-pressure ice form: When the glass is compressed at low temperatures to pressures higher than 4 GPa and subsequently warmed, it crystallizes into ice VII with the ionic species trapped inside the ice lattice. Here we report the extreme limit of salt incorporation into ice VII, using high pressure neutron diffraction and molecular dynamics simulations...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27555745/the-sustained-effect-12-months-of-a-single-dose-vectored-thermal-pulsation-procedure-for-meibomian-gland-dysfunction-and-evaporative-dry-eye
#20
Caroline A Blackie, Christy A Coleman, Edward J Holland
PURPOSE: To evaluate the sustained effect (up to 1 year) of a single, 12-minute vectored thermal pulsation (VTP) treatment in improving meibomian gland function and dry eye symptoms in patients with meibomian gland dysfunction and evaporative dry eye. METHODS: The prospective, multicenter, open-label clinical trial included 200 subjects (400 eyes) who were randomized to a single VTP treatment (treatment group) or twice-daily, 3-month, conventional warm compress and eyelid hygiene therapy (control group)...
2016: Clinical Ophthalmology
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