It takes a village to break up a match: a systemic analysis of formal youth mentoring relationship endings

BACKGROUND Although early closure of formal youth mentoring relationships has recently begun to receive some attention, more information about factors that contribute to premature endings, and how those factors interact, is needed so that empirically-based program practices can be developed and disseminated to prevent such endings and to ensure that youth reap the benefits mentoring can provide. OBJECTIVE This qualitative interview study applies a systemic model of youth mentoring relationships (Keller in J Prim Prev 26:169–188, 2005a) to the study of mentoring relationship endings in community-based mentoring matches to understand why these matches ended. METHOD Mentors, parents/guardians and program staff associated with 36 mentoring matches that had ended were interviewed about their experiences of these relationships and their understanding of why they had ended. Thematic analysis of the interview transcripts and mentoring program case notes for each match followed by systemic modeling of the relationships yielded three major findings. RESULTS A strong mentor–youth relationship is necessary but not sufficient for match longevity. The mentor–youth relationship, even when relatively strong, is unlikely to withstand disruptions in other relationships in the system. Agency contextual factors, such as program practices and policies and staffing patterns, have a critical role to play in sustaining mentoring matches, as they directly influence all of the relationships in the mentoring system. CONCLUSION These findings highlight the importance of considering not just the mentoring dyad but also the parent/guardian and program context when trying to prevent match closures. They also point to several program practices that may support longer mentoring relationships.Accepted manuscrip

Does informal mentoring contribute to upward mobility for low-income adolescents? A mixed-methods multi-stage study

There are over 13 million children and adolescents in poverty in the United States today. These children and adolescents are likely to remain poor throughout their life, and are less likely to be upwardly mobile than their middle-income peers. Although structural change is needed in order to redress economic immobility on a large scale, informal mentoring may be one small person-level intervention that can help promote mobility. Informal mentoring (positive relationships with caring non-parental adults), has already been associated with key building blocks to economic success, including educational attainment and early employment. This dissertation is the first study to examine if informal mentors can promote economic mobility for adolescents, asking (1) is informal mentorship associated with upward mobility? and (2) do some mentoring relationships promote upward mobility more than others? This study uses data from three waves of the National Longitudinal Study of Adolescent Health (AddHealth). Research Question 1 uses propensity score matching to isolate the effect of informal mentoring on economic mobility, both for low-income and middle-income youth as a comparison. Research Question 2 uses cluster analysis and a series of logistic regressions to determine (a) types of informal mentoring relationships and (b) whether some types better promote economic mobility for low-income youth. Findings from this dissertation demonstrate that some, but not all, informal mentors can promote economic upward for low-income youth. Simply having a mentor did not promote mobility for low-income youth. In order to be upwardly mobile, they needed to have a "capital" mentor, i.e., someone who comes from outside their immediate social circle and connects them to other important relationships and resources. These are in contrast with "core" mentors, long-standing, important relationships from within the family that provide emotional support. This dissertation shows that some mentors can, in fact, make a difference for low-income adolescents' economic outcomes in adulthood. Low-income youth, however, were less likely to have an informal mentor, and only 45% of those who were mentored had the type that could promote mobility. Findings from this dissertation suggest that those who are interested in promoting economic mobility for low-income youth should thus promote capital mentoring relationships

(Not) Minding the Gap: A Qualitative Interview Study of How Social Class Bias Can Influence Youth Mentoring Relationships.

This study sought to examine how social class bias may be enacted by mentors and mentoring program staff within community-based youth mentoring relationships and how these biases may influence the mentoring relationship. A narrative thematic analysis was conducted with interviews from mentors, mentees\u27 parents/caregivers, and mentoring program staff representing 36 matches participating in a larger, prospective, mixed-methods study examining factors associated with early match closures. Findings indicate that although some mentors were able to partner with the youth and family to effectively navigate challenges related to the family\u27s economic circumstances, other mentors and some mentoring program staff held deficit views of the youth and their family that appeared to be at least partially rooted in negative social class-based assumptions about attitudes and behaviors. Specifically, we observed tendencies on the part of some mentors and program staff toward (a) deficit-based views of families and youth, (b) individual-level attributions for the family\u27s economic circumstances and blaming of caregivers, and (c) perceiving mentors as being underappreciated by the youth\u27s caregiver. These deficit perspectives contributed to the minimization of parent/caregiver voice in the mentoring process and negative interpretations of parent/caregiver and, in some cases, youth attitudes and behaviors

Pulmonary Exposure to Magnéli Phase Titanium Suboxides Results in Significant Macrophage Abnormalities and Decreased Lung Function

Coal is one of the most abundant and economic sources for global energy production. However, the burning of coal is widely recognized as a significant contributor to atmospheric particulate matter linked to deleterious respiratory impacts. Recently, we have discovered that burning coal generates large quantities of otherwise rare Magnéli phase titanium suboxides from TiO2 minerals naturally present in coal. These nanoscale Magnéli phases are biologically active without photostimulation and toxic to airway epithelial cells in vitro and to zebrafish in vivo. Here, we sought to determine the clinical and physiological impact of pulmonary exposure to Magnéli phases using mice as mammalian model organisms. Mice were exposed to the most frequently found Magnéli phases, Ti6O11, at 100 parts per million (ppm) via intratracheal administration. Local and systemic titanium concentrations, lung pathology, and changes in airway mechanics were assessed. Additional mechanistic studies were conducted with primary bone marrow derived macrophages. Our results indicate that macrophages are the cell type most impacted by exposure to these nanoscale particles. Following phagocytosis, macrophages fail to properly eliminate Magnéli phases, resulting in increased oxidative stress, mitochondrial dysfunction, and ultimately apoptosis. In the lungs, these nanoparticles become concentrated in macrophages, resulting in a feedback loop of reactive oxygen species production, cell death, and the initiation of gene expression profiles consistent with lung injury within 6 weeks of exposure. Chronic exposure and accumulation of Magnéli phases ultimately results in significantly reduced lung function impacting airway resistance, compliance, and elastance. Together, these studies demonstrate that Magnéli phases are toxic in the mammalian airway and are likely a significant nanoscale environmental pollutant, especially in geographic regions where coal combustion is a major contributor to atmospheric particulate matter