1,721,097 research outputs found
Prehospitalt forløp for pasienter innlagt akuttmottak med mistanke om akutt hjerneslag
Full text linkMaster's thesis in Pre-hospital critical careHjerneslag er en tidskritisk hendelse og man vet at tiden fra symptomdebut til behandlingen iverksettes ofte er for lang. Skal blodproppløsende behandling ha effekt må behandlingen være igangsatt innen 4,5 time fra pasientens symptomdebut. Norsk hjerneslagregister viste at andel pasienter som innlegges Ullevål sykehus innen 4 timer og behandles med blodproppløsende behandling er lavere enn landsgjennomsnittet. Det kan se ut som at faktorer utenfor sykehus alene, den prehospitale forsinkelse, står for inntil halvparten av forsinkelsen. Hensikten med denne studien var å kartlegge det prehospitale forløpet til pasientgruppen som ble innlagt ved akuttmottaket på Oslo universitetssykehus, Ullevål, med mistanke om hjerneslag og hvilke pasienter som ble utskrevet med slagdiagnose. Studien kartla pasientstrømmen fra henholdsvis ambulansetjenesten, storbylegevakt, legekontor og andre sykehus. Av spesiell interesse var transportveier før de ble innlagt akuttmottaket og hvorvidt dette kan påvirke prehospital forsinkelse og om det var forskjeller i alder og kjønn. Data ble hentet fra akuttmottaket ved Ullevål sykehus i perioden 01.01.2018 – 31.12.2018. Ambulansetjenesten la totalt inn flest pasienter med mistanke om hjerneslag. Det var høyest presisjon i gjenkjenning av hjerneslag, sammenlignet med utskrivelsesdiagnose for pasienter innlagt fra andre sykehus og ambulansetjenesten. Studien viste også at over halvparten av pasientene som innlegges med mistanke om akutt hjerneslag utskrives med annen diagnose. Det kan se ut som det er behov for økt kompetanse og bedre skåringsverktøy til det prehospitalet personellet som møter pasientene. Samlet kan dette bidra til økt innsikt og endring i det prehospitale forløpet til pasienter med mistanke om hjerneslag
Intensive blood pressure lowering provides no additional benefits and results in more adverse events.
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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