Search results for "Surgery."
showing 10 items of 15774 documents
The evolution, diversity and host associations of rhabdoviruses
2015
Metagenomic studies are leading to the discovery of a hidden diversity of RNA viruses, but new approaches are needed predict the host species these poorly characterised viruses pose a risk to. The rhabdoviruses are a diverse family of RNA viruses that includes important pathogens of humans, animals and plants. We have discovered the sequences of 32 new rhabdoviruses through a combination of our own RNA sequencing of insects and searching public sequence databases. Combining these with previously known sequences we reconstructed the phylogeny of 195 rhabdovirus sequences producing the most in depth analysis of the family to date. In most cases we know nothing about the biology of the viruses…
In vitro comparison of primary stability of two implant designs in D3 bone
2016
Background Primary stability (PS) is a key factor for implant survival rate and depends on implant design or bone quality. The aim of this study was to compare different thread designs implants, evaluating PS with periotest values (PV) and implant stability quotient (ISQ) values through resonance frequency analysis (RFA). Material and Methods A total of 60 implants (Radhex®, Inmet-Garnick S.A., Guadalajara, Spain) were placed in freshly bovine ribs in vitro. Two designs were used: 30 tapered body with single thread design (PHI) and 30 tapered body with double thread design implants (PHIA). Both designs were 4mm wide and 12mm long. Implants were placed according to manufacturer’s guidelines.…
2018
<b><i>Background:</i></b> A major and complex challenge when trying to support individuals with dementia is meeting the needs of those who experience changes in behaviour and mood. <b><i>Aim:</i></b> To explore how a sensor measuring electrodermal activity (EDA) impacts assistant nurses’ structured assessments of problematic behaviours amongst people with dementia and their choices of care interventions. <b><i>Methods:</i></b> Fourteen individuals with dementia wore a sensor that measured EDA. The information from the sensor was presented to assistant nurses during structured assessments of problematic behaviours. The e…
Privacy in Modern Healthcare Communications: The Lesson of Alan Turing
2016
Influence of short implants geometry on primary stability.
2018
Background A correct design is needed in short implants to improve primary stability (PS) in low quality bone. This study aimed to compare PS of double thread and single thread short implants. Material and Methods Thirty implants with single thread design (PHI/SHORT-I) and 30 implants with double thread design (PHIA/SHORT-I) (Radhex®, Inmet-Garnick S.A., Guadalajara, Spain) were placed in 30 randomly selected bovine ribs. PS was assessed in implant stability quotients (ISQ) and periotest values (PV) with Osstell™ and Periotest® devices, respectively. Computed tomographies of the ribs were taken and bone quality was evaluated in Hounsfield Units (HU) using Ez3D Plus software (Vatech Co., Kor…
Dynamic Response of a Rigital Displacement Motor Operating with Various Displacement Strategies
2019
Digital displacement technology has the potential of revolutionizing the performance of hydraulic piston pumps and motors. Instead of connecting each cylinder chamber to high and low pressure in conjunction with the shaft position, two electrically-controlled on/off valves are connected to each chamber. This allows for individual cylinder chamber control. Variable displacement can be achieved by using different displacement strategies, like for example the full stroke, partial stroke, or sequential partial stroke displacement strategy. Each displacement strategy has its transient and steady-state characteristics. This paper provides a detailed simulation analysis of the transient and steady…
Anästhesie bei Patienten mit Porphyrie
2019
Die Porphyrien sind eine Gruppe vorwiegend hereditarer Stoffwechselstorungen der Hambiosynthese. Die Betreuung eines Patienten mit akuter Porphyrie ist eine interdisziplinare Herausforderung, bei der die Anasthesie eine koordinierende Funktion erfullt. Da es fur die Porphyrien bislang keine kausale Therapie gibt, richtet sich das Vorgehen im akuten Schub nach dem klinischen Bild. Im anasthesiologischen Umfeld ist insbesondere auf die Verwendung „sicherer“ Medikamente zu achten!
Sonstige psychotrope Substanzen
2007
Koffein (1,3,7-Trimethylxanthin; C8H10N4O12, Molekulargewicht 194,19) gehort zur Gruppe der naturlich vorkommenden Purine wie die strukturahnlichen Theophyllin (1,3-Dimethylxanthin) und Theobromin (3,7-Dimethylxanthin) (Abb. 5.1.1).
Medición de la voluntad de vivir en adultos mayores: adaptación transcultural, validez y confiabilidad de la Will-to-Live Scale
2021
Resumen Objetivo La Will-to-Live Scale (WTLS) es utilizada para medir la voluntad de vivir en adultos mayores; sin embargo, no existe una version en espanol. El objetivo del estudio fue traducir la WTLS al espanol, evaluar su estructura interna, su confiabilidad y los correlatos entre la WTLS y la satisfaccion con la vida, la resiliencia y la depresion en adultos mayores peruanos. Metodo Los participantes fueron 235 adultos mayores peruanos (M = 72,69, DE = 6,68) evaluados entre marzo y mayo de 2019, seleccionados a traves de un muestreo no probabilistico. Se administro la WTLS, la Satisfaction with Life Scale (SWLS), la Brief Resilient Coping Scale (BRCS) y el Patient Health Questionnarie-…
Hacia una comprensión neurocientífica del trastorno por estrés postraumático en las víctimas del atentado terrorista del 11 de septiembre de 2001
2018
Resumen Introduccion De todas las personas expuestas a un evento traumatico, solo un pequeno porcentaje de ellas desarrollaran un trastorno por estres postraumatico (TEPT). Las neurociencias han sugerido la existencia de cierta predisposicion genetica que elevaria la vulnerabilidad para desarrollar el trastorno, asi como la desregulacion de multiples sistemas neuroquimicos como correlatos del trastorno. Asimismo, se ha hipotetizado sobre la posible transmision intergeneracional del mencionado trastorno. Material y metodo Revisar y sintetizar los resultados obtenidos sobre los factores psicobiologicos que aumentan la vulnerabilidad para desarrollar el TEPT tras el atentado terrorista de las …