1,720,969 research outputs found
Functional outcome and short-term mortality after surgery for hip fractures
No full textIntroduction Hip fractures are associated with significant disability and mortality. We conducted a prospective study to investigate the mortality rate and functional ability in patients who underwent surgery for hip fracture over a one-year period.
Materials and methods One-hundred patients (72 females and 28 males; mean age, 78.2 years (range 32–102) surgically treated for hip fracture were prospectively followed-up for 1 year. Fifty-five and 45 patients sustained a trochanteric fracture or a fracture of the femoral neck, respectively. Daily-life activities (ADL scale), cognitive impairment (MMSE Scale), comorbidity (CIRS scale), functional status, and personal mobility were prospectively evaluated 4 months and 1 year after the operation by telephonic interviews with the patient, his/her relatives, or primary care providers. Mortality data was also recorded. Possible outcome predictors were evaluated by regression analysis.
Results The overall mortality rate at 1 year was 19 percent. Male sex, comorbidity, and a poor pre-fracture functional status were significant predictors of mortality. ADL scale and personal mobility significantly improved between 4-month and 1-year follow-up controls. Forty-five percent of patients without preoperative walking limitations dropped out their walking aids 1-year postoperatively. Patients with trochanteric fracture treated with hip prosthesis showed greater and faster postoperative functional improvement with respect to patients treated by gamma nail.
Discussion Current results represent the first report of a wider ongoing prospective study aimed to evaluate possible outcome predictors of hip fractures to be used to improve and personalize the surgical treatment. The preoperative functional status and comorbidities are major determinants of 4-month and 1-year postoperative mortality and ability of subjects.
Conclusions Our preliminary findings demonstrate the role of surgery in promoting the functional improvement of patients who sustained hip fracture
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Risultati dei cotili primari in tantalio. Comunicazione a Congresso nazionale della società italiana dell'anca
No full textFunctional outcome and mortality after surgery for hip fracture
No full textINTRODUCTION
Hip fractures are associated with significant disability and mortality. A multicenter prospective
study is currently ongoing at our institutions to investigate the mortality and functionality of
patients with hip fracture. This is the report on the first 200 patients.
OBJECTIVES
1) To evaluate the functional outcome and mortality after hip fracture 2) To identify predictors of
mortality, functionality, and personal autonomy on variable follow-up intervals in patients who
sustained hip fracture.
METHODS
Two-hundred consecutive patients (142 females and 58 males; mean age = 78.6 ± 13 years)
admitted to our hospitals for hip fracture were telephonically interviewed 4 months and 1 year
after the treatment. Personal and medical data were collected on hospital admission and were
compared to the follow-up data of all patients, using a validated examination set dealing with
daily life activities (ADL scale), cognitive status (MMSE Scale), comorbidity (ASA and CIRS
scales), and personal mobility. Mortality data was also recorded. Possible outcome predictors
were checked with multivariate regression analysis. SPSS software was used for database and
statistics.
CONCLUSION
This ongoing prospective study is aimed to evaluate mortality and functionality after hip fracture
as well as to identify possible outcome predictors to be used to improve and personalise the
surgical treatment. This first report shows that the preoperative functional status and
comorbidities are major determinants of 4-month and one-year postoperative mortality and
functional status of subjects who sustained a hip fractur
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