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Nicola Alessio,1,* Elisa Santoro,2,* Tiziana Squillaro,3 Domenico Aprile,1 Massimo Briccola,4 Paolo Giubbini,4 Raffaella Marchesani,4 Maria Rosaria Muoio,2 Monica Lamberti2 1Department of Experimental Medicine, Biotechnology and Molecular Biology Section, University of Campania “Luigi Vanvitelli”, Naples, Italy; 2Department of Experimental Medicine, Occupational Medicine Section, University of Campania "Luigi Vanvitelli", Naples, Italy; 3Department of Medical, Surgical, Neurological, Metabolic Sciences, and Aging, 2nd Division of Neurology, Center for Rare Diseases and InterUniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, Naples, Italy; 4e-distribuzione SpA, Rome, Italy*These authors contributed equally to this workCorrespondence: Nicola AlessioDepartment of Experimental Medicine, Biotechnology and Molecular Biology Section, University of Campania “Luigi Vanvitelli”, Naples, Napoli I-80138, ItalyTel +39 081 5667585Fax +39 081 5667547Email nicola.alessio@yahoo.it Monica LambertiDepartment of Experimental Medicine, Occupational Medicine Section, University of Campania “Luigi Vanvitelli”, Naples, Napoli I-80138, ItalyTel +39 081 5667731Email monica.lamberti@unicampania.itBackground: The ubiquitous diffusion of radiofrequency (RF) radiation across human living environments has attracted the attention of scientists. Though the adverse health effects of RF exposure remain debatable, it has been reported that the interaction of such radiation with biological macromolecular structures can be deleterious for stem cells, inducing impairment of their main functions involving self-renewal and differentiation.Purpose: The purpose of this study was to determine whether exposure to RF of 169 megahertz (MHz) that is part of very high radiofrequency (VHF) range 30–300 MHz, could cause damage to stem cells by inducing senescence and loss of regenerative and DNA repair capacity.Methods: The study was conducted on mesenchymal stromal cells (MSCs) containing a subpopulation of stem cells. The MSCs were exposed to RFs of 169 MHz administered via an open meter 2G “Smart Meter” for different durations of time.Result: We did not observe modifications in MSC biology as a result of the RF exposure conducted in our experiments.Conclusion: We concluded that MSCs are insensitive to RF radiation exposure at 169 MHz for various time intervals, including longer durations.Keywords: 169 MHz, stem cell, senescence, CFU

Discrimination is associated with numerous psychological health outcomes over the life course. The nine-item Everyday Discrimination Scale (EDS) is one of the most widely used measures of discrimination; however, this nine-item measure may not be feasible in large-scale population health surveys where a shortened discrimination measure would be advantageous. The current study examined the construct validity of a combined two-item discrimination measure adapted from the EDS by Add Health (N = 14,839) as compared to the full nine-item EDS and a two-item EDS scale (parallel to the adapted combined measure) used in the National Survey of American Life (NSAL; N = 1,111) and National Latino and Asian American Study (NLAAS) studies (N = 1,055). Results identified convergence among the EDS scales, with high item-total correlations, convergent validity, and criterion validity for psychological outcomes, thus providing evidence for the construct validity of the two-item combined scale. Taken together, the findings provide support for using this reduced scale in studies where the full EDS scale is not available.

High educational attainment is associated with beneficial outcomes for both individuals and society; however, Black males are underrepresented among college students. This study drew on a positive youth development (PYD) perspective to investigate the role of academic self-efficacy beliefs (a malleable strength) in predicting academic preparedness (a measure of PYD) and how academic preparedness, in turn, was associated with immediate postsecondary enrollment. We also investigated a school-level measure of climate--academic press--as a moderator. Our study's sample of Black male students was drawn from the Education Longitudinal Study (ELS) of 2002 and used three waves of ELS data. We found significant direct and indirect (through academic preparedness) effects of academic self-efficacy beliefs on college enrollment, and the findings indicated no differences in indirect relationships based on academic press. We discuss recommendations for future studies and the practice of school counseling.

Disaster exposure can put survivors at greater risk for subsequent mental health (MH) problems. Within the field of disaster MH research, it is important to understand how the choice of analytic approaches and their implicit assumptions may affect results when using a disaster exposure measure. We compared different analytic strategies for quantifying disaster exposure and included a new analytic approach, latent class analysis (LCA), in a sample of parents and youth. Following exposure to multiple floods in Texas, a sample of 555 parents and 486 youth were recruited. Parents were predominantly female (70.9%) and White (60.8%). Parents were asked to have their oldest child between the ages of 10 and 19 years old participate (M = 13.74 years, SD = 2.57; 52.9% male). Participants completed measures on disaster exposure, posttraumatic stress, depression, and anxiety. The LCA revealed four patterns of exposure in both parents and youth: high exposure (15.5% parent, 9.5% child), moderate exposure (19.8% parent, 28.2% child), community exposure (45.9% parent, 34.4% child), and low exposure (18.8% parent, 27.8% child). In terms of MH, there were similarities across analytic approaches, but the LCA highlighted a threshold effect, with the high exposure class doing worse than all others, d = 1.12. These results have important implications in understanding the different exposure experiences of survivors and the linkage to MH outcomes. The findings are also informative in the development and use of screening tools used in postdisaster contexts in determining who may or may not need MH services.

The current study investigated changes in proximal descriptive alcohol use norms from high school to college, social integration as a predictor of stable versus shifting peer norms, and the consequences of norm profile membership for developmental outcomes. Using data (N = 9753 12th grade students; 59% female; 80% White, 7% Black, 5% Hispanic, 5% Asian/Pacific Islander, 3% other races/ethnicities) from the Monitoring the Future panel study, we identified five distinct norm profiles—three stable profiles (high, moderate‐high, and low) and two shifting profiles (increasing, declining)—that had unique patterns of perceived friend alcohol use norms. Social integration distinguished norm profile membership, and we observed particular detriments to outcomes for those in the stable high peer norm profile. [ABSTRACT FROM AUTHOR]

Making a smooth transition to the K-12 (kindergarten through Grade 12) classroom context sets the stage for academic success throughout the life course. Parents' early education-related behaviors are linked with children's adjustment, yet less is known about how parental school readiness beliefs motivate parenting practices at this educational transition. We investigated the associations between parental school readiness beliefs (general and child-specific) following the transition to kindergarten and parents' involvement the following year. Using data from the Early Childhood Longitudinal Study--Kindergarten 2011 cohort (N=9,790), general school readiness beliefs and child-specific academic and behavioral competency beliefs were associated with school-based involvement in first grade. Kindergarten parents who held higher child-specific academic competency beliefs also reported less homework involvement and had greater teacher-reported classroom-based involvement in first grade. Family poverty status differences did not emerge. Findings can inform efforts to increase parental involvement by elucidating the ways in which parents' beliefs about their children motivate involvement strategies.

The current study investigated early adolescents' experiences of friend-related stress across middle school and its developmental consequences following the transition to high school. Using a sample of approximately 1,000 middle school students, four unique friend-related stress trajectories were observed across middle school: consistently low friend-related stress (57% of the sample), consistently high friend-related stress (7%), moderate and increasing friend-related stress (22%), and moderate but decreasing friend-related stress (14%). Groups characterized by higher levels of friend-related stress across middle school were linked to subsequent poorer socioemotional well-being, lower academic engagement, and greater involvement in and expectancies around risky behaviors following the transition to high school. Increased friend-related stress across the high school transition was also linked to poorer outcomes, even after taking into account earlier stress trajectories. Gender differences highlighted the particular struggles girls experience both in friend stress and in the links between friend stress and subsequent well-being.

Discrimination is associated with numerous psychological health outcomes over the life course. The nine-item Everyday Discrimination Scale (EDS) is one of the most widely used measures of discrimination; however, this nine-item measure may not be feasible in large-scale population health surveys where a shortened discrimination measure would be advantageous. The current study examined the construct validity of a combined two-item discrimination measure adapted from the EDS by Add Health (N = 14,839) as compared to the full nine-item EDS and a two-item EDS scale (parallel to the adapted combined measure) used in the National Survey of American Life (NSAL; N = 1,111) and National Latino and Asian American Study (NLAAS) studies (N = 1,055). Results identified convergence among the EDS scales, with high item-total correlations, convergent validity, and criterion validity for psychological outcomes, thus providing evidence for the construct validity of the two-item combined scale. Taken together, the findings provide support for using this reduced scale in studies where the full EDS scale is not available. [ABSTRACT FROM AUTHOR]

Adolescents' perceptions of the prejudice in their social environments can factor into their developmental outcomes. The degree to which others in the environment perceive such prejudice-regardless of adolescents' own perceptions-also matters by shedding light on the contextual climate in which adolescents spend their daily lives. Drawing on the National Longitudinal Study of Adolescent Health, this study revealed that schoolwide perceptions of peer prejudice, which tap into the interpersonal climate of schools, appeared to be particularly risky for adolescents' academic achievement. In contrast, adolescents' own perceptions of peer prejudice at schools were associated with their feelings of alienation in school. Importantly, these patterns did not vary substantially by several markers of vulnerability to social stigmatization.

The COVID‐19 pandemic upended the lives of adolescents and young adults across the globe. In response to the pandemic onset, educational institutions were forced to pivot to online learning, a new teaching and learning format for most secondary and university students. This systematic narrative review summarizes findings from 168 publications spanning 56 countries on students' educational outcomes and school climate as well as the internal assets and contextual supports that promoted academic well‐being during the pandemic. Our findings suggest that young people commonly reported declines in their academic‐related outcomes and school‐based relationships due to the COVID‐19 pandemic. Internal assets (e.g., intrinsic motivation and self‐efficacy) and contextual supports (i.e., relationships with teachers, peers, and parents) promoted academic well‐being during the pandemic. Next steps for research on young people's academic well‐being during the pandemic are suggested. [ABSTRACT FROM AUTHOR]

The current study assessed whether greater use of shift-and persist strategies, which entail the reappraisal of stressors (shifting) and endurance through optimism and meaning-making (persist), buffered the associations between life stressors and adolescents' psychological health (i.e. depressive symptoms and anxiety) and physical health and health behaviors (i.e. self-rated health and sleep quality). Survey data were drawn from a racially/ethnically and socioeconomically diverse sample of 750 9th grade adolescents (53% female). Path analysis revealed racial discrimination, neighborhood risk, and deportation exposure were linked to poorer psychological and physical health, while socioeconomic disadvantage was related to less anxiety but poorer physical health. Some evidence suggested that shift-and-persist may be protective-reactive, wherein shift-and-persist typically promoted well-being across health domains but more so when the life stressors were at low versus high levels. Shift-and-persist strategies promote both mental and physical health, but the promotive effects appear to be maximized when adolescents' exposure to life stressors is minimal. [ABSTRACT FROM AUTHOR]

Evidence that the learning gains of preschool fade as children transition into elementary school has led to increased efforts to sustain preschool advantages during this key transitional period. This study explores whether the observed benefits of sustainability practices for a range of child outcomes are explained and/or moderated by family and school mechanisms selecting children into experiencing these practices. Analyses of the Early Childhood Longitudinal Study-Birth Cohort revealed that both family and school factors predicted children's exposure to several PK-3 sustainability practices. PK-3 sustainability practices were associated with reading (but not math) gains and better interpersonal skills (but not fewer externalizing behaviors) following the transition into kindergarten. These links were not conditioned by the selection mechanisms. The findings highlight who is more likely to seek out (at the family level) or offer (at the school level) sustainability practices and how relevant they are to fighting preschool fadeout.

There is an extensive body of work documenting the negative socioemotional and academic consequences of perceiving racial/ethnic discrimination during adolescence, but little is known about how the larger peer context conditions such effects. Using peer network data from 252 eighth graders (85% Latino, 11% African American, 5% other race/ethnicity), the present study examined the moderating role of cross-ethnic friendships and close friends' experiences of discrimination in the link between adolescents' perceptions of discrimination and well-being. Cross-ethnic friendships and friends' experiences of discrimination generally served a protective role, buffering the negative effects of discrimination on both socioemotional well-being and school outcomes. Overall, results highlight the importance of considering racial/ethnic-related aspects of adolescents' friendships when studying interpersonal processes closely tied to race/ethnicity.