1,721,000 research outputs found
Low-signal intensity on MRI in the globus pallidus in children with long-term oral manganese exposure
No full textDisorders of peripheral nerves
No full textPeripheral neuropathies are heritable or acquired.
A.Heritable defects, among others:
1.Chronic hereditary motor-sensory neuropathies (HMSN alias Charcot-Marie-Tooth), hereditary motor-sensory neuropathies (HMSN), hereditary sensory and autonomic neuropathies (HSAN), hereditary neuralgic amyotrophy (HNA)
2. Relapsing/progressive motor-sensory polyneuropathies (i.e., Refsum disease)
3. Chronic, progressive, motor-sensory polyneuropathies with early small-fiber involvement (e.g., familial amyloid polyneuropathies)
4. Painful neuropathies (e.g., Fabry disease)
5. Acute generalized polyneuropathies (porphyrias)
6. Chronic sensory neuronopathies associated with ataxias
7. Chronic sensory (and motor) neuropathies due to mitochondrial disorders
8. Recurrent focal neuropathies/plexopathies [hereditary neuropathy with liability to pressure palsies (HNPP); hereditary neuralgic amyotrophy (HNA)]
Outcome and disability – Most patients with CMT1A and CMT1X do not require ambulation aids. FAP, if untreated, has a relentless fatal course. HNPP has normal life expectancy and good quality of life in most patients.
Acute intermittent porphyria: the long-term prognosis depends on successful prevention of attacks.
B. Acquired forms, among others:
Immunomediated neuropathies: acute inflammatory polyradiculoneuropathies (AIDP), chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), multifocal motor neuropathy (MMN)
Outcome and disability – AIDP: 5 % of patients die. CIDP: age <45 years predicts a better outcome; axonal loss forecasts poorer prognosis. MMN: very uncommon spontaneous remissions. Anti-MAG: 25 % of patients disabled after 10 years. POEMS: chronic and invalidating; 50 % of patients are bedridden; mean survival ranges 12–165 months.
Non-systemic vasculitic neuropathy (NSVN): usually not fatal; NSVN may become systemic in 10 % of patients.
Diabetic Neuropathies
Distal symmetric polyneuropathy (DSP): slowly progressive; can stabilize or improve with tight control of diabetes. Autonomic neuropathy: increases the risk of adverse cardiovascular events. Radiculoplexopathy: monophasic, self-limiting evolution.
Carpal tunnel syndrome (CTS): pain tends to decrease with time. One-third of patients have spontaneous improvement.
Bell palsy: healing occurs within 6 months in 80 % of patients.
Peripheral nerve injury (PNI) – Neurapraxic lesions usually recover within a few months. Surgery: the sooner the nerve is repaired the better the functional recovery will be
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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