182,935 research outputs found
Il CDI (Children's Depression Inventory) di M. Kovac. Questionario di autovalutazione. Adattamento italiano. Manuale
No full textLa versione italiana realizzata da R. Mayer, M. Camuffo, R. Cerutti, L. Lucarelli ed i risultati delle loro ricerche evidenziano l'utilità e la possibilità di uso del CDI in Italia. Lo strumento può anche facilitare studi transculturali relativi ai sintomi depressivi tra i giovani, dal momento che è stato già tradotto ed utilizzato in diverse versioni (ungherese, francese, tedesca, spagnola, ecc.) . L'uso dello strumento non solo permette di identificare precocemente casi ma facilita la ricerca sulla depressione ad insorgenza precoce
Correlati psicopatologici delle condotte autolesive in adolescenza
No full textNel presente articolo gli Autori analizzano l’autolesionismo intenzionale (Deliberate Self-Harm Behaviour- DSH), inteso come quel comportamento che causa un danno o una lesione al proprio corpo o a parti di esso, senza intento suicidario. Lo studio si propone l’obiettivo di rilevare la diffusione di tale condotta e i suoi correlati psicopatologici in adolescenti appartenenti alla popolazione generale. Sono stati somministrati a 361 studenti di scuola secondaria di II grado (età 13-22 anni; media=16,21; DS=1.67) i seguenti questionari di autovalutazione: il Deliberate Self-Harm Inventory (Gratz, 2001) nell’ adattamento italiano (Cerutti, Manca, Presaghi, 2009a), il Repetitive Self-Harm Questionnaire (Manca, Cerutti, Presaghi, 2005), la Adolescent Dissociative Experience Scale (Armstrong et al., 1997), il Disruptive Behavior Symptomatology (Sutton, Reeves, Keogh, 2000) e la Scala Borderline tratta dalla Intervista Clinica e Strutturata per il DSM-III-R (Spitzer et al., 1990). I risultati ottenuti offrono un contributo importante alla comprensione dell’autolesionismo intenzionale poiché mettono in evidenza come tale condotta sia presente in maniera significativa in adolescenti italiani appartenenti alla popolazione generale
Power spectrum analysis of cardiovascular variability monitored by telemetry in conscious unrestrained rats
No full textBeat-to-beat variability of arterial pressure and heart period (R-R) was studied in eight conscious freely-moving adult male rats in which telemetric recordings of arterial pressure, ECG and respiratory movements were obtained under unrestrained and unstressed conditions. The beat-to-beat time series of these signals (systolic arterial pressure, diastolic arterial pressure and R-R) were analyzed, in the frequency domain, using autoregressive spectral analysis in order to detect and quantify the rhythmic components. In basal conditions, the systolic arterial pressure variability spectrum was characterized by three major spectral components which had central frequencies respectively of 0.08 +/- 0.03 Hz (very low frequency), 0.43 +/- 0.02 Hz (low frequency) and 1.36 +/- 0.19 Hz (high frequency). Similar rhythmic components were found in R-R signal variability. The very low frequency component included a higher percentage of total power in R-R variability spectrum (75.3%) than in systolic arterial pressure variability spectrum (58.4%). The low frequency component was more pronounced in both systolic and diastolic arterial pressure variability spectra. The high frequency component of R-R, systolic and diastolic arterial pressure was synchronous with respiration. Cross-spectral analysis revealed a high statistical coherence between R-R and arterial pressure variabilities in all the three frequency bands. An alpha-adrenergic blocker (phentolamine) specifically abolished the low frequency components of systolic and diastolic arterial pressure variability spectra, thus suggesting that low frequency is a marker of sympathetic modulation of vasomotor activity. The low frequency component of R-R variability spectrum was also markedly blunted. We suggest that cardiovascular variability signals, (R-R, systolic and diastolic arterial pressure) are composed almost of two main rhythms linked to respiration and vasomotor activity. These rhythms can be quantified in conscious unrestrained rats by using telemetry and spectral analysis. This approach seems to offer a new powerful tool for pharmacological studies in conscious small animals
Spectral analysis of R-R and arterial pressure variabilities to assess sympatho-vagal interaction during mental stress in humans
No full textWe tested the hypothesis that spectral analysis of the R-R interval and systolic arterial pressure variabilities allows assessment of the dynamic changes in neural control of the cardiovascular system in men undergoing mental stress testing. Mental arithmetic increased the low-frequency components of R-R and systolic arterial pressure, i.e. markers of sympathetic activity to the SA node and the vasculature, respectively; it also decreased the high frequency component of R-R variability, a marker of vagal activity. Spectral analysis of R-R and systolic arterial pressure variabilities may be used in the clinic to test the dynamic effects of mental stress on both sympathetic and vagal activities
Importanza della valutazione psicologica della gravida : elaborazione di uno strumento diagnostico
No full textHeart transplantation in pediatric age
No full textJ Cardiovasc Med (Hagerstown). 2007 Jan;8(1):67-71.
Heart transplantation in pediatric age.
Milanesi O, Cerutti A, Biffanti R, Salvadori S, Gambino A, Stellin G.
Source
Department of Pediatrics, University of Padova School of Medicine, Padova, Italy. [email protected]
Abstract
Heart transplantation, formerly the final option for terminally ill children, has now become the treatment of choice for a number of serious acquired or congenital cardiac conditions, which cannot be treated conservatively. Nevertheless, several problems remain unsolved. First of all the shortage of donors, mainly in the first months and years of life, which has become more and more significant with time, regardless of the country, religious belief or culture of the people. Secondly, the long-term impact of immunosuppression in a developing organism, and its possible inter-relation with the primary disorder, which leads to intractable heart failure. Whether a heart transplant is a cure or an ongoing disease for both the child and the family is another matter of concern. These and other topics are covered in this article.
PMID:
17255820
[PubMed - indexed for MEDLINE
Impact of polarization mode dispersion in multi-hop multi-rate WDM rings
No full textFiber polarization mode dispersion (PMD) is perhaps the most critical transmission impairment in optical networks at transmission rates of 10 Gb/s and higher. Since the bandwidth-distance product, or transparency,of the optical circuit is limited by PMD, the overall network design and cost may be significantly altered by the actual fiber PMD values. The paper has three objectives. First, an accurate model for evaluating the PMD effects is presented and verified experimentally. Second, the cost increase of WDM rings due to PMD in a number of design scenarios—first generation, single-hop,multi-hop, and multi-rate networks—is assessed. Third, the polynomial-time algorithm proposed in Cerutti et al. [1] is modified to provide sub-optimal solutions for the above WDM rings, taking into account the limited bandwidth-distance product imposed by PMD. Presented results reveal that at high transmission rates, the cost of the multi-hop ring is less affected by PMD than the costs of first generation and single-hop rings
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