1,720,988 research outputs found
The Fractal Variogram Analysis as General Tool to Measure Normal and Altered Metabolism States and the Genetic Instability: An Application to the Case of the Cutaneous Malignant Melanoma
No full textWe discuss a new methodology that uses the Fractal Variance Function, the Generalized Fractal Dimension, the Fractal Measure and the Probability Distributions in the framework of a variogram analysis in order to characterize normal and altered states of the biological dynamics. Its relevance is evidenced through an analysis of some cases of melanoma
Il ruolo della prolattinemia negli outcome della depressione. Risultati di uno studio osservazionale
No full textMethods & Application of Non-linear Analytical Methods in Neurology and Psycho-physiology
No full textIn the light of the results obtained during the last two decades in analysis of signals by time
series, it has become evident that the tools of non linear dynamics have their elective role of
application in biological, and, in particular, in neuro-physiological and psycho-physiological
studies. The basic concept in non linear analysis of experimental time series is that one of
recurrence whose conceptual counterpart is represented from variedness and variability that are
the foundations of complexity in dynamic processes. Thus, the recurrence plots and the
Recurrence Quantification Analysis (RQA) are discussed. It is shown that RQA represents the
most general and correct methodology in investigation of experimental time series. By it we
arrive to inspect the inner structure of the time series connected to the signals under
investigation. Linked to RQA we prospect also the method CZF, recently introduced by us. It is
able to account for a true estimation of variability of signals in time as well as in frequency
domain. And, consequently, it may be used in conjunction with classical Fourier analysis,
accounting however that it is inappropriate in analysis of non linear and non stationary
experimental time series. The use of CZF method in fractal analysis is also considered in addition
to standard index as Hurst exponent. A large field of possible applications in neurological as well
as in psycho-physiological studies is given. Also, there are given examples of other and (possibly
linked) applications as example the analysis of beat-to-beat fluctuations of human heartbeat
intervals that is sovereign in psycho-physiological studies. We give applications on some
different planes to evidence the particular sensitivity of such methods. We reach the objective to
show that the previously exposed methods are also able to predict in advance the advent of
ventricular tachycardia and/or of ventricular fibrillation. The RQA analysis gives good results.
The CZF method gives the most excellent results showing that it is able to give very significant
indexes of prediction. We also apply such methods in investigation of state anxiety, and
proposing in detail a quantum like model of such phenomenological status of the mind
Valutazione della qualità della vita in pazienti affetti da HCV rispetto alla terapia con interferone alfa
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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
Heart rate variability at rest, and heart rate changes during mental stress, in subjects affected by panic disorder
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A Preliminary Experimental Verification of Violation of Bell Inequality in a Quantum Model of Jung Theory of Personality Formulated with Clifford Algebra
No full textWe comment some recent results obtained by using a Clifford bare bone skeleton of quantum mechanics in order to formulate the conclusion that quantum mechanics has its origin in the logic, and relates conceptual entities. Such results touch directly the basic problem about the structure of our cognitive and conceptual dynamics and thus of our mind. The problem of exploring consciousness results consequently to be strongly linked. This is the reason because studies on quantum mechanics applied to this matter are so important for neurologists and psychologists. Under this profile we present some experimental results showing violation of Bell inequality during the MBTI test in investigation of C.V. Jung’s theory of personality
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
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