1,720,994 research outputs found
Do antenatal maternal and paternal depression levels affect emotional availability during mother-child and father-child interactions?
No full textThis study determined the predictive value of antenatal maternal and paternal depressive symptoms in emotional availability (EA) during mother-child and father-child interactions. A self-reported measure of depression was administered to 50 couples of primiparous parents during the seventh/eighth month of pregnancy, and an observational system was applied to assess parent-child EA when the children were aged 7 and 9 months. To disentangle the contributions from the mother and fathers, 2 moderated regression models were tested separately for maternal and paternal EA, with maternal and paternal depressive symptoms and their interaction as predictors and the partners’ EA and age as controls. In the first model, maternal depressive symptoms (beta = -.32, p = .01) and paternal EA (beta = .57, p <.01) had a significant effect, and there was a significant interaction between maternal and paternal depressive symptoms (beta = -.24, p = .03). No significant effects emerged for paternal depressive symptoms or maternal age. A simple-slope analysis of the interaction showed that for high levels of depression in fathers (+1 SD), the relationship between maternal depressive symptoms and maternal EA was negative and significant (r = -.56, p = .005), whereas for low levels (-1 SD), this relationship tended to dissipate. Regarding the second model, no significant effects were found for maternal or paternal depressive symptoms or their interaction. Overall, the results suggest that high levels of maternal depressive symptoms during pregnancy impairs the development of adequate maternal EA. This risk increases when maternal and paternal depressive symptoms are high, implicating the importance of the relationship between parents. These effects were not observed for paternal EA
Wave orbital velocity effects on radar Doppler altimeter for sea monitoring
No full textThe orbital velocity of sea wave particles affects the value of sea surface parameters as measured by radar Doppler altimeters (also known as delay Doppler altimeter (DDA). In DDA systems, the along-track resolution is attained by algorithms that take into account the Doppler shift induced by the component along the Earth/antenna direction of the satellite velocity, VS. Since the vertical component of the wave particle orbital velocity also induces an additional Doppler effect (in the following R-effect), an error arises on the positioning of the target on the sea surface. A numerical investigation shows that when the wavelength of sea waves is of the same order of magnitude of the altimeter resolution, the shape of the waveform might be significantly influenced by the R-effect. The phenomenon can be particularly important for the monitoring of long swells, such as those that often take place in the oceans
Validation of a probabilistic method for the structural design of seawave slot-cone generators
No full textThe paper deals with the validation of a wave by wave approach for the calculation of the wave loadings exerted on an overtopping type Wave Energy Converter named Seawave Slot-Cone Generator (SSG).The prediction method, originally developed for regular waves, employs the Iribarren number (Battjes, 1974), the slope parameter (Svendsen, 2006) and the Linearthrust parameter (Buccino et al., 2015) as main predictors. The approach has been tested against five 2-D random wave tests, carried out in view of the design of a new pilot plant to be located along the Norwegian coas
Structural Response of Seawave Slot-cone Generator (SSG) from Random Wave CFD Simulations
No full textInvestigating the protective role of global self-esteem on the relationship between stressful life events and depression. A longitudinal moderated regression model
No full textThe present study was aimed at investigating the protective role of Global Self-Esteem (GSE) on the relationship between stressful life events and depression. A longitudinal research design, including two measurement occasions with a two-month interval was applied on a sample of 95 university students (80 females) with a mean age of 22.49 (SD = 6.77). A series of scales were administered in both occasions: the Daily Event Checklist (DEC), the Rosenberg Self-Esteem Scale(RSES) and the Center of Epidemiological Study Depression Scale (CES_D). Longitudinal moderated regression models were performed, including DEC, RSES and their interaction (DEC x RSES) as predictors, the baseline level of CES_D as a covariate and the final level of CES_D as criterion. Results showed a negative and significant interaction between predictors, indicating that the prospective effect of stressful life events on depression become weaker as self-esteem increases. Specifically, the detrimental effect of stressful daily life events was observed only at low levels of self-esteem. Similar results were found when a bi-factorial model was applied to the RSES, with the aim to obtain an unbiased estimate of GSE, controlling for potential method effects due to item wording. The main strengths and weaknesses of the study were discusse
CFD ANALYSIS OF WIND EFFECT ON WAVE OVERTOPPING
No full textIt is widely assumed that onshore winds significantly increase runup and overtopping; several recent research results have indeed shown that this effect cannot be neglected. The effects of the wind and of the spray generation on the overflow phenomenon thus seem to be important in the design of seawalls, even though they are difficult to quantify through hydraulic model experiments due to the problem of wind scaling. The use of a numerical model overcomes the limits of scale effects in experimental tests, thus making it possible to consider the action of wind-induced shear stress on the increase of the up-rushing jet near the wall. The present work presents a numerical wind stress model that takes into account such action on wave overtopping
Measuring Implicit European and Mediterranean Landscape Identity: A Tool Proposal
No full textThis study presents a tool - the Landscape Identity Implicit Association Test (LI-IAT) - devoted to measure the implicit identification with European and Mediterranean landscapes. To this aim, a series of prototypical landscapes was selected as stimulus, following an accurate multi-step procedure. Participants (N = 174), recruited in two Italian cities, performed two LI-IATs devoted to assess their identification with European vs. Not-European and Mediterranean vs. Not-Mediterranean prototypical landscapes. Psychometric properties and criterion validity of these measures were investigated. Two self-report measures, assessing, respectively, European and Mediterranean place identity and pleasantness of the target landscapes, were also administered. Results showed: (1) an adequate level of internal consistency for both LI-IATs; (2) a higher identification with European and Mediterranean landscapes than, respectively, with Not-European and Not-Mediterranean ones; and (3) a significant positive relationship between the European and Mediterranean LI-IATs and the corresponding place identity scores, also when pleasantness of landscapes was controlled for. Overall, these findings provide a first evidence supporting the reliability and criterion validity of the European and Mediterranean LI-IATs
The landscape as a source of identity: Explicit and implicit responses toward Europe and Mediterranean.
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