Search results for " GAS"
showing 10 items of 4643 documents
Safety of hospital discharge before return of bowel function after elective colorectal surgery
2020
Ileus is common after colorectal surgery and is associated with an increased risk of postoperative complications. Identifying features of normal bowel recovery and the appropriateness for hospital discharge is challenging. This study explored the safety of hospital discharge before the return of bowel function.A prospective, multicentre cohort study was undertaken across an international collaborative network. Adult patients undergoing elective colorectal resection between January and April 2018 were included. The main outcome of interest was readmission to hospital within 30 days of surgery. The impact of discharge timing according to the return of bowel function was explored using multiva…
Liver disease severity and low bone mineral density in HIV mono-infected and HIV/HCV co-infected patients
2014
Background: In this study we assess: prevalence of osteopenia, osteoporosis and reduced bone mineral density in HIV infection and HIV / HCV co-infection;risk factors associated with reduced bone mineral density(BMD); relationship between bone mineral density and reduced liver fibrosis (FE) measured as "liver stiffness" (LS), by FibroScan ® in patients co-infected with HIV / HCV; relationship between reduced bone mineral density and cardiovascular risk assessed with the 10-year Framingham risk score (FRS) in HIV / HCV co-infected Patients And Methods: One hundred and ninety-four HIV-infected subjects (121 males =62% and 73 females = 38 %): 129 HIV-infected ( 66.5 % ) and 65 HIV / HCV co-infe…
Synthesis of Amino-1,2,4-triazoles by Reductive ANRORC Rearrangements of 1,2,4-Oxadiazoles
2010
The reaction of various 1,2,4-oxadiazoles with an excess of hydrazine in DMF has been investigated. 3-Amino- 1,2,4-triazoles are produced through a reductive ANRORC pathway consisting of the addition of hydrazine to the 1,2,4-oxadiazole followed by ring-opening, ring-closure, and final reduction of the 3-hydroxylamino-1,2,4-triazole intermediate. The general applicability of 1,2,4-oxadiazoles ANRORC reactivity is demonstrated also in the absence of C(5)-linked electron-withdrawing groups.
Controlling Oxidative Addition and Reductive Elimination at Tin(I) via Hemi-Lability.
2021
We report on the synthesis of a distannyne supported by a pincer ligand bearing pendant amine donors that is capable of reversibly activating E–H bonds at one or both of the tin centres through dissociation of the hemi-labile N–Sn donor/acceptor interactions. This chemistry can be exploited to sequentially (and reversibly) assemble mixed-valence chains of tin atoms of the type ArSn{Sn(Ar)H} n SnAr ( n = 1, 2). The experimentally observed (decreasing) propensity towards chain growth with increasing chain length can be rationalized both thermodynamically and kinetically by the electron-withdrawing properties of the –Sn(Ar)H– backbone units generated via oxidative addition. peerReviewed
Natural Halogen Emissions to the Atmosphere: Sources, Flux, and Environmental Impact
2022
Understanding the atmospheric geochemical cycle of both natural and anthropogenic halogens is important because of the detrimental effect halogens have on the environment, notably on tropospheric and stratospheric ozone. Oceans are the primary natural source for atmospheric Cl, F, Br, and I, but anthropogenic emissions are still important, especially for Cl. While emissions of human-made halocarbons (e.g., chlorofluorocarbons or CFCs) are expected to continue to decrease allowing progressive stratospheric ozone recovery, volcanic activity (e.g., clusters of mid-scale explosive eruptions or large-scale explosive eruptions) might disturb this recovery over the next decades. This review provid…
Methylprednisolone-induced hepatotoxicity in a 16-year-old girl with multiple sclerosis.
2018
Multiple sclerosis (MS) is a chronic inflammatory disease with demyelination of the central nervous system. High-dosage corticosteroids are the first-line therapy in the acute relapsing of MS. We report a case of severe high-dose methylprednisolone-induced acute hepatitis in a patient with a new diagnosis of MS. A 16-year-old girl was admitted for urticaria, angioedema, nausea and vomiting a month later she had been diagnosed with MS and treated with high-dosage methylprednisolone. Laboratory investigations showed hepatic insufficiency with grossly elevated liver enzymes. A liver biopsy showed focal centrilobular hepatocyte necrosis with interface hepatitis. Methylprednisolone-induced hepat…
The modelling of the behaviour of solid inclusions in the EM induced recirculated turbulent flows of liquid metal
2014
Promocijas darbā skaitliski un eksperimentāli pētītas noslēgtas elektromagnētiski ierosinātas šķidrā metāla turbulentās plūsmas ar cietām daļiņām. Šādas plūsmas veidojas metalurģiskajās indukcijas krāsnīs. Darbā ir izveidots uz LES plūsmas aprēķina pieejas bāzēts Lagranža modelis ar paplašinātu spēku kopu inerciālo daļiņu pārneses aprakstam. Veikts eksperimentāls daļiņu koncentrācijas pētījums kvazi-stacionārā stāvoklī, izmantojot jaunu ideju: ferromagnētiskās daļiņas izmantotas kā nevadošu daļiņu fiziskais modelis šķidrajā metālā - tas ir pirmais zināmais eksperimentālais darbs cietu ieslēgumu sadalījuma analīzē elektormagnētiski ierosinātu šķidro metālu plūsmu iekšienē. Eksperiments pierā…
Les confréries, identités et discours.
2021
Rituel, intronisation, festival, patrimoine… pour quelle identité, quel territoire, quelle réalité ? Les confréries ouvrent un espace riche en significations que cet ouvrage explore dans toutes ses dimensions. A la fois recherches universitaires et témoignages, ce livre présente une analyse des pratiques, des usages mais aussi des symboles et des imaginaires véhiculés par les confréries vineuses. Il donne ainsi une certaine profondeur à ce qui peut sembler un simple amusement ou encore un rituel désuet dans une société qui cherche des valeurs. L'ouvrage invite à une réflexion par de-là les symboles. Les chapitres apportent une vision complémentaire de ce patrimoine immatériel, véhiculé par …
Estudio del reflujo gastroesofágico mediante impedanciometria esofágica multicanal en pacientes pediátricos
2021
INTRODUCCION: El diagnóstico del reflujo gastroesofágico (RGE) en el paciente pediátrico continúa siendo un reto para el profesional, puesto que los síntomas del mismo, son inespecíficos. Aunque el reflujo se presenta en forma de síntomas digestivos como la pirosis,epigastralgia o incluso vómitos, también existen otros síntomas que se denominan extradigestivos,y que se pueden asociar al RGE como la tos, o la laringitis de repetición. MATERIAL Y MÉTODOS: Es un estudio longitudinal multicéntrico prospectivo de 4 años de duración, incluyendo todos aquellos pacientes pediátricos de 0-15 años, que se derivan para realización de impedanciometría esofágica en el contexto de estudio del RGE. Se inc…
Nutrición artificial domiciliaria pediátrica mediante gastrostomía: análisis de la respuesta nutricional y de la aceptación familiar del procedimiento
2012
En los últimos años, la incidencia de la nutrición enteral domiciliaria (NED) ha crecido paralela no sólo a la mayor supervivencia de niños con enfermedades crónicas graves sino también al desarrollo de técnicas especiales de atención domiciliaria, especialmente de soporte nutricional. El objetivo principal de este trabajo fue la valoración a través de un seguimiento longitudinal de la efectividad clínica de la NED en pacientes pediátricos tras la implantación de gastrostomía así como la aceptación familiar del procedimiento. En nuestro estudio las enfermedades neurológicas han constituido el principal grupo subsidiario de esta técnica de soporte nutricional en la infancia. Otras enfermedad…