Search results for "ICON"
showing 10 items of 3539 documents
Heated breathing tubes affect humidity output of circle absorber systems.
1993
Abstract Study Objective: To verify whether the airway climate in circle systems can be improved with heated breathing tubes. Design: Randomized, controlled, prospective clinical study. Setting: Operating theater of the Department of Maxillofacial Surgery. Patients: 26 adult patients undergoing prolonged anesthesia. Interventions: A total of 26 prolonged anesthetics were conducted in adult patients using a minimal fresh gas flow rate (0.6 L/min) and silicon breathing tubes (16 mm internal diameter) containing a heated coil. Group 1 ( n = 10 patients) was the control group; breathing tubes were unheated. In Group 2 ( n = 10 patients), breathing tubes were heated to 30°C. In Group 3 ( n = 6 p…
Pro-Inflammatory Cytokines in Elective Flap Surgery
2006
Surgical trauma releases inflammatory mediators such as pro-inflammatory cytokines. In this prospective, controlled, randomized trial we investigated the release of pro-inflammatory cytokines and monocyte/macrophage activation in patients scheduled for breast reconstruction after mastectomy. Patients were allocated to one of three surgical procedures, differing in complexity and in the need for implants used for reconstruction.Thirty mastectomized women underwent delayed breast reconstruction with the lateral thoracodorsal flap (LTD), the latissimus dorsi flap (LD), or the pedicled transverse rectus abdominis muscle flap (TRAM). Blood samples for TNF, IL-6, IL-8, neopterin, C-reactive prote…
Morphea after silicone gel breast implantation for cosmetic reasons in an HLA-B8,DR3-positive woman
1997
We describe an HLA-B8, DR3-positive patient with localized morphea after silicone gel breast implantation for cosmetic reasons. We believe that this case suggests that a genetic background, i.e. HLA-B8, DR3 haplotype, is involved in the autoimmune response to silicone.
From local structure to nanosecond recrystallization dynamics in AgInSbTe phase-change materials
2010
Phase-change optical memories are based on the astonishingly rapid nanosecond-scale crystallization of nanosized amorphous 'marks' in a polycrystalline layer. Models of crystallization exist for the commercially used phase-change alloy Ge(2)Sb(2)Te(5) (GST), but not for the equally important class of Sb-Te-based alloys. We have combined X-ray diffraction, extended X-ray absorption fine structure and hard X-ray photoelectron spectroscopy experiments with density functional simulations to determine the crystalline and amorphous structures of Ag(3.5)In(3.8)Sb(75.0)Te(17.7) (AIST) and how they differ from GST. The structure of amorphous (a-) AIST shows a range of atomic ring sizes, whereas a-GS…
Epilepsy in the Elderly
2009
Epilepsy is the third most common disease affecting the brain in the elderly. Current demographic trends will lead to an increased prevalence of epilepsy in the general population.A selective literature search revealed 102 relevant publications as of September 2008, 50 of which were original articles.The level of evidence was found to be very low. No guidelines, systematic reviews or meta-analyses are available, and there have been only three randomized, double-blind trials of treatment for epilepsy in the elderly. The seizures often escape clinical attention, because premonitory symptoms (aura) and secondary generalization into tonic-clonic seizures are both rarer in older patients. On the…
Santi soldati nelle campagne siciliane. La vicenda di S. Nicone
2007
È analizzata la vicenda del Martyrium di S. Nicone, in riferimento ai riflessi storici dell’epoca di composizione, ed al contesto sociale del versante orientale della Sicilia in cui si svolgono le vicende di questo santo-soldato.
Evidences of cannabinoids-induced modulation of paroxysmal events in an experimental model of partial epilepsy in the rat.
2009
The anticonvulsant effect of cannabinoids (CB) has been shown to be mediated by the activation of the CB(1) receptor. This study evaluates the anticonvulsant activity of (R)-(+)-[2,3-dihydro-5-methyl-3-(4-morpholinylmethyl) pyrrolo[1,2,3-de]-1,4-benzoxazin-6-Yl]-1-naphthalenylmethanone (WIN55,212-2, CB agonist) alone or preceded by the administration of N-(piperidin-1-yl)-5-(4-iodophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide (AM251, selective CB(1) antagonist) in an experimental in vivo model of complex partial seizures (maximal dentate gyrus activation - MDA) in the rat. WIN55,212-2 (21mgkg(-1)) exerted an anticonvulsant effect, significantly reduced by the pre-treatme…
Modulation of visual cortex excitability in migraine with aura: effects of valproate therapy.
2009
We explored the effects of valproate treatment on visual cortex excitability changes in migraine with aura patients. Abnormal cortical excitability has been suggested to play an important role in the etiopathogenesis of migraine; in particular, it has been suggested a failure of inhibitory circuits in migraine with aura. Valproate acts as a central GABA agonist and it is reasonable suppose that VPA could modify cortical excitability state. Phosphene threshold (PT) was assessed at baseline and after 1 Hz rTMS before and after one month therapy. We found that low-frequency rTMS in drug-free migraineurs decreased PT, while the treatment with the GABA agonist valproate is able to revert the eff…
Role of CB2 receptors and cGMP pathway on the cannabinoid-dependent antiepileptic effects in an in vivo model of partial epilepsy.
2014
This study aimed at providing an insight on the possible role of cannabi-noid (CB) type 2 receptors (CB2R) and cGMP pathway in the antiepileptic activity ofWIN 55,212-2, (R)-(+)-[2,3-dihydro-5-methyl-3-(4-morpholinylmethyl) pyrrolo[1,2,3-de]-1,4-benzoxazin-6-Yl]-1-naphthalenylmethanone, a non-selective CB agonist, in the maximal dentate activation (MDA) model of partial epilepsy in adult male rats. We evaluated the activity of a CB2 antagonist/inverse agonist AM630, [6-iodo-2-methyl-1-[2-(4-morpholinyl)ethyl]-1H-indol-3-yl](4-methoxyphenyl)methanone or 6-iodopravadoline, alone or in co-administration with WIN 55,212-2. Also, in the MDA model it was investigated the co-treatment of WIN55,212…
Selective recovery of phosphorus as AlPO4 from silicon-free CFB-derived fly ash leachate
2018
The prospect of phosphorus (P) recovery from siliceous fly ash was investigated. The phosphorus content in the pristine fly ash was 1.21%. Obtaining pure phosphorus products from fly ash is very challenging because of high concentration of other elements, silicon (Si) at 17.3% being the major contaminant. The fly ash was fractionated with sieve size of 125 μm to concentrate the phosphorus in the small-size fraction, which also facilitated the removal of 78% of silica (Si) in the solid phase. The fractionated fly ash was treated with 8 M HCl in order to remove 98% of Si by aging (5 h) of leachate until precipitation of Si-gel, and a phosphorus-rich solution is obtained. Iron (Fe) is also con…