768 research outputs found

    A spatially distributed analysis of erosion susceptibility and sediment yield in a river basin by means of geomorphic parameters and regression relationships

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    International audienceIn the present work, an application of statistical regression relationships utilising geomorphic parameters is attempted in a spatially distributed mode, in order to predict the amount of river sediment supply at varying sections of the drainage network. Simple and multiple regression relationships utilising drainage density Dd and hierarchical anomaly index ?a as independent variables were applied to the Calvano watershed (Central Italy) at different degree of subdivision in tributary drainage basins, so as to assess their contribution to the whole watershed sediment yield balance. In the same way, the role of small hill-reservoirs as sediment-trap and that of areas affected by badlands and of tributary basins exposure were also investigated. Results were tested on the basis of sedimentation estimates from selected reservoirs. The relationships provided a yearly specific sediment yield (SSY) value for the Calvano stream which is according to the average observed SSY in river basins of central Italy flowing to the Adriatic Sea. The use of simple statistical relationships, such as those here adopted, can allow to recognise the sections along the main stream which are more critical in terms of sediment accumulation, which, on turn, can cause sudden water discharge increments and dangerous floods. This approach can provide a tool enabling to locate the hydraulic risk and to point out the areas where soil conservation practices or hydraulic works, such as periodic maintenance of riverbeds, are needed in order to reduce soil erosion and sediment accumulation

    Developmental trajectories of ethnic and national identities in adolescents from migrant families: The role of social identification with family and classmates

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    Given that adolescents from migrant families live within at least two cultural contexts (i.e., the heritage and the destination cultures), they generally must negotiate and construct ethnic and national identities. Accordingly, the present three-wave longitudinal study was designed to identify distinct developmental trajectories of ethnic and national identities among adolescents from migrant families (n = 244, 56.6% female; Mage = 14.90, SDage = 0.84 at Time 1). Multivariate latent class growth analyses indicated that participants could be classified into one of four groups based on their identity profiles: ethnic-oriented identity, national-oriented identity, dual identity, and marginalized identity. Further, social identification with family and classmates was examined as a predictor of memberships in these distinct identity profiles. Results of multinomial logistic regression analysis indicated that greater social identification with family increased the probability of being classified into the ethnic-oriented and dual identity profiles rather than into the marginalized identity profile, whereas greater social identification with classmates increased the likelihood of being classified into either national-oriented or dual identity profiles rather than into the marginalized identity profile. These findings provide novel insights into the roles of families and peers as influential socializing agents during the negotiation of ethnic and national identities among immigrant youth

    The Ginevra de\u2019 Benci Effect: Competence, Morality, and Attractiveness Inferred From Faces Predict Hiring Decisions for Women

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    The present study examined the role of morality, competence, and attractiveness as perceived from faces in predicting hiring decisions for men and women. Results showed that for both female and male applicants, facial competence significantly predicted the hiring decision directly and indirectly, through the mediation of the overall impression. Decisions concerning female applicants were, however, significantly predicted by multiple dimensions\u2014that is, facial morality, facial competence, and attractiveness\u2014with the mediation of the overall impression. Facial competence was the only significant predictor of impression and, in turn, hiring decision about men. These findings resonate the motto Virtutem forma decorat, \u201cBeauty adorns virtue,\u201d painted by Leonardo da Vinci on the reverse side of the portrait of Ginevra de\u2019 Benci, and suggest that women\u2019s chances of getting a job are less than those of men whenever they do not show a moral and competent and attractive face

    The Utrecht-Management of IdentityCommitments Scale (U-MICS)Italian Validation and Cross-National Comparisons

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    The present study examined the psychometric properties of the Dutch and Italian versions of the Utrecht-Management of Identity Commitments Scale (U-MICS) in large community samples of adolescents from Italy (N = 1,975) and The Netherlands (N = 1,521). Confirmatory factor analyses indicated that the three-factor model, consisting of commitment, in-depth exploration, and reconsideration of commitment, provided a better fit to the data than alternative one- and two-factor models. The three-factor model fit equivalently across sex and across age groups (early and middle adolescents). Furthermore, we demonstrated cross-national equivalence of the factor structure of the U-MICS. Additionally, results indicated that the latent means for commitment were higher in the Dutch sample, while latent means for both in-depth exploration and reconsideration of commitment were substantially higher in the Italian sample. The three identity processes were found to be meaningfully related to measures of self-concept, psychosocial problems, and parent-adolescent relations in both countries. These findings suggest that the U-MICS is a reliable tool for assessing identity processes in Italian and Dutch adolescents

    Meeting in school: Cultural diversity approaches of teachers and intergroup contact among ethnic minority and majority adolescents

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    This study investigated the associations between cultural diversity approaches endorsed by teachers and adolescents' positive and negative intergroup contact in schools. Participants were 984 adolescents (Mage = 14.66; 62.7% female; 24.8% ethnic minority) involved in a three-wave longitudinal study between 2019 and 2020. Results highlighted that perceived equal treatment by teachers was related to higher positive and lower negative contact over time. However, perceived support for contact and cooperation and interest of teachers in children's cultural background were not related to either positive or negative contact over time. Importantly, the results were replicated across ethnic minority and majority adolescents. This study provides novel insights into the key role that teachers can play in promoting cultural diversity approaches to facilitate harmonious intergroup interactions in schools

    The future is present in the past: A meta-analysis on the longitudinal associations of parent–adolescent relationships with peer and romantic relationships

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    Positive peer and romantic relationships are crucial for adolescents' positive adjustment and relationships with parents lay the foundation for these relationships. This longitudinal meta-analysis examined how parent–adolescent relationships continue into later peer and romantic relationships. Included longitudinal studies (k = 54 involving peer relationships, k = 38 involving romantic relationships) contained demographically diverse samples from predominantly Western cultural contexts. Multilevel meta-regressions indicated that supportive and negative parent–adolescent relationships were associated with supportive and negative future peer and romantic relationships. Meta-analytic structural equation modeling (k = 54) indicated that supportive parent–adolescent relationships unidirectionally predicted supportive and negative peer relationships, while negative parent–adolescent relationships were bidirectionally associated with supportive and negative peer relationships. Maintaining mutually supportive relationships with parents may help adolescents to develop positive social relationships

    Psychometric properties of the Italian Tinnitus Functional Index (TFI)

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    Diversi questionari sono utilizzati per valutare l\u2019impatto dell\u2019acufene sulla qualit\ue0 della vita. Il Tinnitus Functional Index (TFI) proposto da Meikle et al, nel 2012, ha dimostrato propriet\ue0 eccellenti per misurare la gravit\ue0 e le modificazioni indotte dal trattamento degli acufeni, sia in ambito clinico che di ricerca. Lo scopo di questo studio \ue8 stato valutare le propriet\ue0 psicometriche della versione italiana del TFI, in particolare, l\u2019analisi fattoriale, la consistenza interna, l\u2019affidabilit\ue0 e la validit\ue0. La versione originale inglese del TFI \ue8 stata tradotta in italiano secondo la procedura translation - back translation; 137 partecipanti con acufeni da almeno 3 mesi (39,4% femmine, et\ue0: 18-80 anni, et\ue0 media: 48,26, SD: 14,08), reclutati presso la Tinnitus Clinic di Milano, hanno completato la versione italiana del TFI, il Tinnitus Handicap Inventory, la Beck Depression Inventory - Versione Primary Care e la scala di valutazione numerica per il fastidio. Una parte del campione, 57 pazienti, ha completato la versione italiana del TFI in una seconda visita, dopo 7-14 giorni, prima di ricevere qualsiasi tipo di trattamen- to, per ricavare i dati per la valutazione della riproducibilit\ue0. Le propriet\ue0 psicometriche sono state studiate attraverso un\u2019analisi fattoriale esplorativa ed il calcolo di misure di consistenza interna e affidabilit\ue0 test-retest. La validit\ue0 convergente \ue8 stata valutata mediante i coefficienti di correlazione con le restanti misure. La versione italiana del TFI ha mostrato una struttura a quattro fattori, parzialmente diversa dalla struttura originale a otto fattori. L\u2019adattamento italiano del TFI ha rivelato buoni livelli di consistenza interna (0,92 64 \u3b1 64 0,96) e affidabilit\ue0 test-retest (0,79 64 \u3b1 64 0,85). In termini di validit\ue0 convergente, ha mostrato buone correlazioni con i punteggi del THI (r = 0,77) e della scala del fastidio (r = 0,70) e correlazioni medie con i punteggi del BDI (r = 0,46). Le difficolt\ue0 nel riprodurre la struttura originale a otto fattori sono coerenti con altri studi di validazione del TFI nelle lingue europee. Nonostante tali discrepanze, la versione italiana del TFI ha mostrato una struttura fattoriale caratterizzata da alti livelli di affidabilit\ue0 e validit\ue0. Nel complesso, l\u2019adattamento italiano di TFI si \ue8 rivelato idoneo a misurare l\u2019impatto degli acufeni sulla vita quotidiana degli individui.Various questionnaires are used to assess the impact of tinnitus on the quality of life. The Tinnitus Functional Index (TFI) has excellent properties for scaling the severity of tinnitus and treatment-related changes in both clinical and research settings. The aim of this study was to evaluate the psychometric properties of the Italian version of the TFI with particular emphasis on factor analysis, internal consistency, reliability and validity. The original English version of the TFI was translated into Italian using the translation/back - translation process; 137 participants who were re- cruited at the Tinnitus Clinic in Milan and had suffered from tinnitus for at least three months (39.4% females, age: 18-80 years, mean age: 48.26, SD: 14.08) completed the Italian version of the TFI, the Tinnitus Handicap Inventory (THI), the Beck Depression Inventory - Primary Care Version (BDI-PC) and the Numeric Rating Scale of annoyance (NRS-A). Of these patients, 57 completed the TFI again at a second visit 7-14 days later, before undergoing any intervention, in order to provide data for reproducibility assessment. The psychometric properties were investigated using exploratory factor analysis and internal consistency and test-retest reliability instruments. The convergent validity of the TFI was evalu- ated using correlation coefficients obtained from the remaining measurements. The Italian TFI has a four-factor structure that was somewhat different from the original. The internal consistency proved to be good (0.92 64 \u3b1 64 0.96) as did the test-retest reliability (0.79 64 \u3b1 64 0.85). In terms of convergent validity, the TFI showed high correlations with the THI (r = 0.77) and the NRS-A (r = 0.70) scores, and moderate correlations with the BDI-PC scores (r = 0.46). The difficulties encountered when attempting to reproduce the original eight-factor structure were consistent with other studies in which the TFI was translated into European languages. In spite of this, the factorial structure of the Italian version of the TFI was characterised by high levels of reliability and validity. Overall, the Italian adaptation of the TFI was shown to be suitable to measure the impact of tinnitus on the daily lives of individuals

    Moral disengagement and generalized social trust as mediators and moderators of rule-respecting behaviors during the COVID-19 outbreak

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    In this study, we tested a theoretical model with moral disengagement, a mediator,and generalized social trust (GST), a mediator and a moderator of the relationshipbetween personality traits and rule-respecting behaviors (i.e., social distancing andstay-at-home), during the coronavirus disease 2019 (COVID-19) outbreak in Italy. Thedata were collected on 1520 participants (61% males). General results are threefold: (1) moral disengagement mediated the relationship between emotional stability, narcissism,psychopathy, and social distancing; (2) among components of GST, trust in Governmentmediated the relationship between psychopathy and social distancing; trust in knownothers mediated the relationship between emotional stability, agreeableness, andMachiavellianism with total number of exits; trust in unknown others mediated therelationship of emotional stability, agreeableness, conscientiousness, and psychopathywith average daily number of exits; (3) GST moderated the indirect effect of personalitytraits on rule-respecting behaviors through moral disengagement. The theoretical andpractical importance of these results is discussed

    Moral Disengagement and Generalized Social Trust as Mediators and Moderators of Rule-Respecting Behaviors During the COVID-19 Outbreak

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    In this study, we tested a theoretical model with moral disengagement, a mediator, and generalized social trust (GST), a mediator and a moderator of the relationship between personality traits and rule-respecting behaviors (i.e., social distancing and stay-at-home), during the coronavirus disease 2019 (COVID-19) outbreak in Italy. The data were collected on 1520 participants (61% males). General results are threefold: (1) moral disengagement mediated the relationship between emotional stability, narcissism, psychopathy, and social distancing; (2) among components of GST, trust in Government mediated the relationship between psychopathy and social distancing; trust in known others mediated the relationship between emotional stability, agreeableness, and Machiavellianism with total number of exits; trust in unknown others mediated the relationship of emotional stability, agreeableness, conscientiousness, and psychopathy with average daily number of exits; (3) GST moderated the indirect effect of personality traits on rule-respecting behaviors through moral disengagement. The theoretical and practical importance of these results is discussed
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