305,482 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Traumatic experience and health consequences in young men and women in Rwanda
No full textMaster thesis, Programme in Medicine. TITLE: Traumatic experience and health consequences in young men and women in Rwanda. AUTHOR: Lovisa Zackrisson. Introduction/Background
Rwanda – a small, hilly, low-income country in the sub-Saharan Africa. Between April and to middle of July in 1994, one million people were murdered in what was a mass slaughter – a genocide. Two millions became refugees. Women and young girls were systemically raped, and fathers and children had to witness the encroachments. Of Rwandan adults, 75% had to flee their homes. Somehow, all Rwandans were traumatized.
Purpose
To investigate what health outcomes that can be found in young Rwandans, 20-35 years of age, with experiences of traumatic episodes during the genocide period and during lifetime and if differences can be seen between men and women.
Method
An epidemiological study has been performed with interviews following a questionnaire in the Southern province of Rwanda. In total, 917 Rwandans participated in the study, 477 women and 440 men. The data has been analysed for men and women separately. Cross tabulations and logistic regression analyses have been performed with odds ratios with 95% confidence intervals.
Results
This study has shown that women in general have poorer health than men. When it comes to traumatic episodes experienced, men suffer more if exposed during 1994 and women if exposed during lifetime. Men and women also have a worse health outcome if they live in a poor household. The health outcomes are mainly physical symptoms, major depressive episode (MDE) current, suicidality and generalized anxiety disorder (GAD).
Discussion/Conclusions
It might be the case that men who have experienced traumatic episodes during 1994 are more capable of using violence themselves. Due to difficulties coping with memories and grief, they have more mental health problems compared to those not exposed. Women are to a greater extent exposed during lifetime, which might indicate exposure to domestic violence. Living in a poor household might also add on to the usage of violence
Author, publisher and bookseller : a tripartite synergy in Nigerian book industry
No full textThis work is about the roles of Author, Publisher and Bookseller in Book development in
Nigeria. The paper started by delving into the history of Book Publishing in Nigeria after
which it proceeded by defining who an author, a publisher, and a bookseller is and
expatiated on the indispensable roles of these key actors in Nigerian Book Industry and in
the emerging Information Society. Furthermore, the various constraints to book
development were identified while the paper advised on how the Book Industry can be
further promoted in Nigeria. However, the paper concluded and made recommendations
on how the Book sector can help in enhancing scholarship in the country
[Report to Chief J. E. Curry, by an unknown author #2]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #1]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
Mining e-mail content for author identification forensics
No full textWe describe an investigation into e-mail content mining for author identification, or authorship attribution, for the purpose of forensic investigation. We focus our discussion on the ability to discriminate between authors for the case of both aggregated e-mail topics as well as across different email topics. An extended set of e-mail document features including structural characteristics and linguistic patterns were derived and, together with a Support Vector Machine learning algorithm, were used for mining the e-mail content. Experiments using a number of e-mail documents generated by different authors on a set of topics gave promising results for both aggregated and multi-topic author categorisation
Parkinson's disease and motor function - a validation of the PLM method
No full textAim: To validate the Posturo-Locomotor-Manual (PLM) test, an objective movement measurement system designed to measure movement disability in patients with Parkinsonism.
Method: The reliability of the PLM test was determined in a test-retest procedure performed in 37 healthy controls (Study III). Correlations between the PLM test and clinical ratings with the Unified Parkinson’s Disease Rating Scale motor section (UPDRS III) were investigated in 73 patients with Parkinsonism (47 with Parkinson’s disease, 17 with multiple system atrophy, and 9 with progressive supranuclear palsy) who performed the PLM test and underwent UPDRS III rating in simultaneous assessments (Study II). The ability of the PLM test to discriminate between healthy controls and patients with Parkinsonism, between patients with Parkinson’s disease and patients with atypical Parkinsonism, and between patients with multiple system atrophy and patients with progressive supranuclear palsy was evaluated in 132 patients (56 with Parkinson’s disease, 53 with multiple system atrophy, and 23 with progressive supranuclear palsy) using multiple logistic regression analysis (Study III). To ensure that the accuracy of the original semiautomatic PLM method was maintained in a new automatic implementation, QbTestMotus, the old and new test methods were performed simultaneously in 61 patients and the correlation between the two techniques was analyzed (Study I). Finally, the PLM test was used in parallel with UPDRS III in a clinical pilot trial evaluating the effect of repetitive transcranial magnetic stimulation in 10 patients with early Parkinson’s disease (Study IV).
Results: The PLM test had excellent test-retest reliability and discriminated effectively between healthy persons and patients with Parkinsonism (AUC 0.99). There was a fair to good correlation between the PLM test and UPDRS III in all measured variables except for the manual variable (M). The ability of the PLM test to discriminate between PD patients and patients with atypical Parkinsonism was improved (to AUC=0.91) by combining two PLM variables. There was a good coherence between the original semiautomatic PLM test and the QbTestMotus. UPDRS III ratings indicated that repetitive transcranial magnetic stimulation over the motor cortex potentiated the medication effect in the 10 patients with early Parkinson’s disease, but this effect was not detectable using the PLM test.
Conclusion: The automated implementation of the PLM test (QbTestMotus) generates data that are consistent with the measurements made with an older semi-automated method. The PLM test is a reliable and objective instrument for measuring motor function in ambulatory patients with Parkinsonism. It can distinguish between Parkinson's disease and atypical Parkinsonism in patients at intermediate to advanced stages of the disease, but cannot reliably detect acute treatment response in early-stage Parkinson's disease with symptoms predominantly from the upper limbs
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