1,720,966 research outputs found
Brain reorganization following intervention in children with congenital hemiplegia: A systematic review
No full textVisuo-haptic transfer for object recognition in children with periventricular leukomalacia and bilateral cerebral palsy
Full text linkObject recognition is a complex adaptive process that can be impaired in children with neurodevelopmental disabilities. Recently, we found a significant effect of time on the development of unimodal and crossmodal recognition skills for common objects in typical children and this was a starting point for the study of visuo-haptic object recognition skills in impaired populations. In this study, we investigated unimodal visual information, unimodal haptic information and visuo-haptic information transfer in 30 children, from 4.0 to 10.11 years of age, with bilateral Periventricular Leukomalacia (PVL) and bilateral cerebral palsy. Results were matched with those of 116 controls. Participants were tested using a clinical protocol, adopted in the previous study, involving visual exploration of black-and-white photographs of common objects, haptic exploration of real objects and visuo-haptic transfer of these two types of information. Results show that in the PVL group as in controls, there is an age-dependent development of object recognition abilities for visual, haptic and visuo-haptic modalities, even if PVL children perform worse in all the three conditions, in comparison with the typical group. Furthermore, PVL children have a specific deficit both in visual and haptic information processing, that improves with age, probably thanks to everyday experience, but the visual modality shows a better and more rapid maturation, remaining more salient compared to the haptic one. However, multisensory processes partially facilitate recognition of common objects also in PVL children and this finding could be useful for planning early intervention in children with brain lesion
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
The term diplegia should be enhanced. Part I: a new rehabilitation oriented classification of cerebral palsy
No full textThe classification systems for cerebral palsy (CP) need to be continuously
updated, according to specific aims and to significant changes observed over the
years in the panorama of CP. A simplification of CP categories, abandoning the
use of the term diplegia, has been recently suggested. Conversely, in this paper
a new proposal for classification of CP is briefly presented, where special
attention is given to diplegia which is suggested to be divided into four main
clinical forms, according to the patterns of walking observable in these
subjects. The proposed classification was applied to a large population of 213
subjects with diplegia, among 467 cases of CP admitted to two reference centres
for this disorder. The relative incidence of the four forms is reported. The
adopted classification criteria, based on a primary ability of professionals
working in rehabilitation, i.e. observation capacity, makes this approach simple
and easy to use at all levels of the rehabilitation services for CP
The term diplegia should be enhanced. Part II: contribution to validation of a new rehabilitation oriented classification,
No full textRecent proposals of classification for cerebral palsy (CP), mainly revised for
epidemiological purposes, suggest to abandon the use of the term diplegia.
Conversely, in this paper data are presented to support the proposal to maintain
the distinction between spastic tetraplegia and diplegia, and to subdivide this
latter according to four main clinical patterns of walking observable in these
children. This proposal of classification was validated by testing a group of 467
subjects with CP, of whom 213 with diplegia and 115 with tetraplegia,
consecutively admitted between January 2005 and December 2006 to two national
reference centers for this disability. The results were compared with findings
obtained by other methods of classifying gross and fine motor function and
associated disorders. The subjects with tetraplegia strongly differ from those of
diplegia, both for motor functions and for other disabilities. The four main
walking patterns of spastic diplegia were easily recognizable and observers were
able to assign most of the subjects to one form of the classification.
Significant correlations between walking forms of diplegia and distribution of
Gross Motor Function Classification System (GMFCS) levels were found. Some of the
forms significantly differ also for fine motor and mental disability. These
findings suggest that in clinical practice the category of diplegia not only can
be kept as a separate form of CP, but it may be enhanced, through the
identification of different subcategories of children, divided according to their
walking patterns
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
- …
