1,721,020 research outputs found
Valutazione e gestione del paziente con trauma cranico
Viene descritto il trauma cranico chiuso e aperto, il danno primario e secondario, la gestione del trauma cranico in base alla gravità
An unusual growth of an intraventricular meningioma:a case report
Intraventricular meningiomas are rare often histologically benign tumors arising most always from the trigonal region of the lateral ventricle. We report the first described case of a rapidly growing histologically benign intraventricular meningioma in a 68-year-old woman whose magnetic resonance imaging (MRI) executed 1 year before surgical operation was negative for intracranial mass lesion
Functional Reach Test: Movement Strategies in Diabetic Subjects
Functional reach (FR) is a clinical measure, defined as the maximum distance one can reach, forward
beyond arm’s length, able to identify elderly subjects at risk of recurrent falls. Subjects, exhibiting the
same FR can perform the motor task in different ways: a kinematic analysis of the FR, task can help to
identify the motor strategy adopted. The FR test was applied to 17 diabetic non-neuropathic, (CTRL) and
37 neuropathic (DN) subjects. Motor strategies adopted were defined as: ‘‘hip’’ or ‘‘other’’ strategy; the
latter included: ‘‘mixed’’ and ‘‘trunk rotation’’ strategies. Principal Component Analysis and nonparametric
statistical tests were used to study the different execution modalities of the FR test. Results
show that, in CTRL, the most important parameters are those related to trunk flexion in the sagittal plane.
Instead, for DN, the main features are related not only to trunk flexion but also to trunk rotation in the
transverse plane. Percentages of subjects who used ‘‘hip’’ or ‘‘other’’ strategies are similar for CTRL and
DN subjects. However, within the ‘‘other’’ strategy group, the percentage of DN that used a ‘‘trunk
rotation’’ strategy was much higher than for CTRL. Results show that individuals, although exhibiting the
same reaching distance, adopt different movement strategies. Consequently it is important to evaluate
the kinematic behaviour and not only the clinical measure, because the evaluation of the motor strategy
might be useful in the early detection of subjects at risk of postural instabilit
Approximate entropy on posturographic data of diabetic subjects with peripheral neuropathy.
Posturographic time series (stabilogram) analysis is characterized by the difficulty to show the nature (deterministic or stochastic) of this
signal. However, recent studies have shown a nonlinear chaotic behaviour
of the stabilogram . Because of the intrinsic complexity of the stabilogram, the aim of this work is to analyze posturographic data without anyconsideration on their dynamics and to investigate their behaviour in terms of regularity and complexity. These latter characteristics can be useful to
find differences, due to pathological conditions, in the signals dynamics.
The variations of regularity and complexity in physiological signals can
be revealed by Approximate Entropy (ApEn) . In this work ApEn has been evaluated for stabilograms related to diabetic subjects with Peripheral
Neuropathy and to diabetic control subjects
Trattamento conservativo delle fratture del dente dell'epistrofeo n el paziente anziano.
L'influenza dell'ematoma sottodurale cronico nel decorso clinico del paziente con demenza
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
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