Attaccamento ai genitori e disagio emotivo in adolescenti appartenenti a famiglie italiane, miste e migranti: Un approccio multi-metodo

Una ricerca compiuta in italia con metodologia quantitativa e qualitativa per approfondire l'attaccamento ai genitori e il disagio emotivo in adolescenti appartenenti a famiglie italiane, miste e migranti.I partecipanti erano 509 adolescenti (55% maschi) che frequentavano varie scuole medie e superiori del centro-est Italia. La loro et\ue0 variava tra gli 11 e i 19 anni (M = 13.6, DS = 2.2). Il campione era composto da tre gruppi: 261 adolescenti provenivano da famiglie italiane; 100 da famiglie miste (in cui un solo genitore aveva la nazionalit\ue0 italiana); e 148 da famiglie migranti. I risultati hanno mostrato che gli adolescenti provenienti da famiglie migranti si differenziano dai loro coetanei provenienti da famiglie italiane o miste in quanto manifestano con minore frequenza un forte attaccamento a entrambi i genitori e con maggiore frequenza un debole attaccamento a entrambi. Inoltre, gli studenti di famiglie migranti riportano pi\uf9 sintomi ansiosi e depressivi dei coloro coetanei appartenenti alle famiglie italiane e miste. In generale, gli adolescenti con un forte attaccamento a entrambi i genitori manifestano i livelli pi\uf9 bassi di sintomi depressivi e ansiosi mentre un legame ambivalente o evitante sono associati a maggiori disagi emotivi. I risultati sono interpretabili in linea con la letteratura che vuole i compiti di sviluppo relazionali pi\uf9 complessi in adolescenti di famiglie migranti mentre nelle famiglie miste la coppia sarebbe gi\ue0 abituata a negoziare tra culture differenti rendendo meno complessa la costruzione dell\u2019identit\ue0 nei figli

Uncertainties in water chemistry in disks: An application to TW Hya

Context. This paper discusses the sensitivity of water lines to chemical processes and radiative transfer for the protoplanetary disk around TW Hya. The study focuses on the Herschel spectral range in the context of new line detections with the PACS instrument from the Gas in Protoplanetary Systems project (GASPS). Aims. The paper presents an overview of the chemistry in the main water reservoirs in the disk around TW Hya. It discusses the limitations in the interpretation of observed water line fluxes. Methods. ... (abbreviated) Results. We report new line detections of p-H2O (3_22-2_11) at 89.99 micron and CO J=18-17 at 144.78 micron for the disk around TW Hya. Disk modeling shows that the far-IR fine structure lines ([OI], [CII]) and molecular submm lines are very robust to uncertainties in the chemistry, while the water line fluxes can change by factors of a few. The water lines are optically thick, sub-thermally excited and can couple to the background continuum radiation field. The low-excitation water lines are also sensitive to uncertainties in the collision rates, e.g. with neutral hydrogen. The gas temperature plays an important role for the [OI] fine structure line fluxes, the water line fluxes originating from the inner disk as well as the high excitation CO, CH+ and OH lines. Conclusions. Due to their sensitivity on chemical input data and radiative transfer, water lines have to be used cautiously for understanding details of the disk structure. Water lines covering a wide range of excitation energies provide access to the various gas phase water reservoirs (inside and outside the snow line) in protoplanetary disks and thus provide important information on where gas-phase water is potentially located. Experimental and/or theoretical collision rates for H2O with atomic hydrogen are needed to diminish uncertainties from water line radiative transfer.Comment: accepted for publication in A&

Herschel evidence for disk flattening or gas depletion in transitional disks

Transitional disks are protoplanetary disks characterized by reduced near- and mid-infrared emission with respect to full disks. This characteristic spectral energy distribution indicates the presence of an optically thin inner cavity within the dust disk believed to mark the disappearance of the primordial massive disk. We present new Herschel Space Observatory PACS spectra of [OI] 63 micron for 21 transitional disks. Our survey complements the larger Herschel GASPS program "Gas in Protoplanetary Systems" (Dent et al. 2013) by quadrupling the number of transitional disks observed with PACS at this wavelength. [OI] 63 micron traces material in the outer regions of the disk, beyond the inner cavity of most transitional disks. We find that transitional disks have [OI] 63 micron line luminosities two times fainter than their full disk counterparts. We self consistently determine various stellar properties (e.g. bolometric luminosity, FUV excess, etc.) and disk properties (e.g. disk dust mass, etc.) that could influence the [OI] 63 micron line luminosity and we find no correlations that can explain the lower [OI] 63 micron line luminosities in transitional disks. Using a grid of thermo-chemical protoplanetary disk models, we conclude that either transitional disks are less flared than full disks or they possess lower gas-to-dust ratios due to a depletion of gas mass. This result suggests that transitional disks are more evolved than their full disk counterparts, possibly even at large radii.Comment: Accepted for publication in ApJ; 52 pages, 16 figures, 8 table

Identities: A developmental social-psychological perspective

In this contribution, we review research that uses a cross-fertilisation approach to integrate developmental and social-psychological perspectives on how identities are formed and changed over time and how identity processes are genuinely social, being embedded in social contexts and fed by social contents. First, we outline the three-factor identity model as a parsimonious approach to understanding the dynamics of identity development. Second, we review empirical studies with longitudinal approaches to shed light on how identity processes are embedded in key contexts such as family, friendships and society at large through behaviours such as civic engagement. Third, we discuss the interplay between personal and social identities. We conclude by highlighting how adopting a cross-fertilisation approach that combines social-psychological and developmental perspective can significantly advance the theoretical understanding of identity dynamics. Finally, we address similarities and differences between personal identity and social identity approaches, and we provide an agenda for future research

Rapporto con la famiglia e sviluppo del concetto di s\ue9 in adolescenza [family relationship and self concept development in adolescence]

The aim of this study was to investigate associations between family relationships and self-concept in adolescence. Specifically, we investigated how adolescent attachment (expressed by levels of trust, communication, and alienation; Armsden & Greenberg, 1987) to both parents is associated with self-concept clarity (Campbell, 1990), that indicates the extent to which self beliefs are clear, internally consistent and stable. Participants were 2113 Italian adolescents (979 boys and 1134 girls), with ages ranging between 11 and 18 years (1023 were attending junior high schools and 1090 were attending high schools). Participants filled out the Inventory of Parent and Peer Attachment (Nada-Raja, McGee, & Stanton, 1992) and the Self-Concept Clarity Scale (Campbell, Trapnell, Heine, Katz, Lavalle, & Lehman, 1996). Main findings of the multivariate analyses of variance indicated that quality of paternal and maternal relationships worsened during adolescence: trust in both parents and quality of communication with them was lower among older adolescents, that reported also higher levels of alienation. Second, self-concept clarity varied as a function of both gender and age (i.e., self-concept clarity increased over time for male adolescents, whereas it decreased for female adolescents). Results of regression analyses pointed out that paternal and maternal trust were positively related to self-concept clarity, whereas paternal and maternal alienation and maternal communication were negatively linked to it. A further exploration of these associations within gender and age adolescent groups highlighted that within the younger adolescent category paternal and maternal relationships were related to self-concept clarity in both male and female groups. On the contrary, within the older adolescent category only paternal attachment was related to boys\u2019 self-concept clarity and only maternal attachment was linked to girls\u2019 self-concept clarity