Behavior of oceanic crustal magnetization at high temperatures: Viscous magnetization and the marine magnetic anomaly source layer

Although the source layer for marine magnetic anomalies has been assumed to be the extrusive basalts of uppermost ocean crust, recent studies indicate that lower crustal rocks may also contribute. Because the temperature at which magnetization of crustal rocks achieves long-term stability is crucial to any source layer contribution, we undertook high-temperature VRM (viscous remanent magnetization) experiments on samples of basalt, dike and gabbroic sections. Samples were heated at temperature intervals up to Tc, while a magnetic field was applied for periods between 6 hours and 28 days. Results show that the dike and gabbro samples achieve maximum VRM acquisition near 250°C, well below the Tc of 580°C. The basalt sample shows a peak at 68°C, also well below Tc. Results of this pilot study indicate that the critical isotherm for stable magnetization acquisition is defined by the VRM behavior of the specific crustal section

Impact of Social Capital on Employment and Marriage among Low Income Single Mothers

The 1996 Personal Responsibility and Work Opportunity Reconciliation Act of 1996 (PRWORA, P. L. 104-93) called primarily on women to achieve two goals: work and/or marriage. For low income single mothers with limited access to capital, the PRWORA presents a quagmire in that the public safety nets previously guaranteed by the policies of the New Deal were abruptly supplanted by policies with obligations that require various forms of capital. Using longitudinal data from the Fragile Families and Child Wellbeing dataset, we examine the impact of social capital on the chances of marriage and employment among single, unemployed mothers. We find that social capital increases a woman\u27s chances of both marriage and stable employment, but the social capital must be expansive in order to challenge significant social disadvantage. We conclude with a discussion of the importance of social capital as a precursor to upward social mobility for low income mothers as opposed to simply getting \u27off of welfare.\u2

2015 researcher's mini-symposium

Postgraduate researchers from the Faculties of Science, Engineering, Medicine & Surgery and Health Sciences gathered for a forum to present their research interests. The symposium was held in the afternoon of 30 January 2015 in the Engineering Lecture Theatre. The symposium promoted multi-disciplinary networking between various university faculties. Participants were invited based on research topic diversity and gender balance.peer-reviewe

University Students’ Coping Behaviours and Perceived Parental Depression: The Role of Hope and Implications for Counsellors

Research has shown links between perceived parental depressive symptomology and young adults’ depressive symptoms (Rounding & Jacobson, 2013). Hope has been linked to fewer depressive symptoms and to greater adaptive coping behaviours (Chang & DeSimone, 2001). The relation between perceived parental depression, hope, and undergraduate university students’ coping behaviours was examined. Participants were 223 undergraduates (51 males, 172 females) aged 17 to 24. Beyond perceived parental depression, hope predicted higher levels of religion/spirituality, active coping, and planning, and predicted lower levels of humour and behavioural disengagement. Implications for counselling clients at risk for intergenerational depression are discussed. La recherche a démontré qu’il existe des liens entre la symptomatologie de la dépression parentale perçue et les symptômes dépressifs chez les jeunes adultes (Rounding & Jacobson, 2013). On a établi un lien entre l’espoir et une diminution des symptômes de dépression et une amélioration des comportements adaptatifs (Chang & DeSimone, 2001). On a examiné la relation entre la dépression parentale perçue, l’espoir, et les comportements d’adaptation chez les étudiants universitaires de premier cycle. Les participants comptent 223 universitaires de premier cycle (51 hommes, 172 femmes) de 17 à 24 ans. Au-delà de la dépression parentale perçue, le facteur espoir a permis de prédire des niveaux plus élevés de religion/spiritualité, d’adaptation active, et de planification, tout en permettant de prédire des niveaux plus faibles sur le plan de l’humeur et du désengagement comportemental. On y discute des implications pour les clients en counseling à risque de la dépression intergénérationnelle

Taxonomy and biogeography of the New Caledonian species of \u3ci\u3eXylopia\u3c/i\u3e L. (Annonaceae)

A taxonomic review of the New Caledonian representatives of the pantropical tree genus Xylopia L. (Annonaceae) is presented based on museum study of 157 collections. Distinctions are clarified among the four endemic species, two of them previously undescribed in flower and two others described in the literature from only the type collections. A key and species descriptions are presented. Xylopia pancheri Baill., the most frequently collected species, occurs in maquis environments with ultramafic rocks in the central and southern regions of the island, as well as on the Ile des Pins. Xylopia vieillardii Baill. is widespread in low elevation humid forests but the remaining two species, X. dibaccata Daniker and X. pallescens Baill., have restricted distributions and their ecology is still incompletely known. Xylopia pancheri shares similarities with the endemic Fijian species X. degeneri A.C.Sm. and X. vitiensis A.C.Sm.; the remaining three species share more traits with the Fijian endemic X. pacifica A.C.Sm. Taxonomie et biogéographie des espèces de Xylopia L. (Annonaceae) de Nouvelle-Calédonie. Une revision taxonomique des representants neo-caledoniens du genre arborescent et pantropical Xylopia L. (Annonaceae) est presentee, basee sur l’etude de 157 specimens d’herbier. Les distinctions entre les quatre especes endemiques sont clarifiees, deux d’entre-elles precedemment non decrites en fleurs, et les deux autres decrites dans la litterature uniquement des collections types. Une clef et la description des especes sont presentees. Xylopia pancheri Baill., l’espece la plus frequemment recoltee, croit en maquis sur roches ultramafiques dans les regions centrales et sud de la grande-terre, de meme que sur l’Ile des Pins. Xylopia vieillardii Baill. est largement repandue en foret humide de basse altitude, mais les deux dernieres especes, X. dibaccata Daniker et X. pallescens Baill., ont des distributions restreintes et leur ecologie est toujours incompletement connue. Xylopia pancheri montre des similarites avec les especes endemiques fidjiennes X. degeneri A.C.Sm. et X. vitiensis A.C.Sm. ; les trois autres especes semblent plus proches de l’espece endemique fidjienne X. pacifica A.C.S

We Welcome the New Immigrants

From the very beginning of this project we have focused on taking a balanced approach to identifying the strengths and challenges of new immigrants in the Great Plains. Discussions of change in our world invariably focus on problems, and only occasionally on the strengths. We set out to look at new immigrants from a different perspective, in our view, a more realistic perspective: seeing the inherent strengths they possess as newcomers to our region and the gifts they bring, and examining the cultural assets the newcomers and the longer-term residents all can rely upon in working together to meet the inevitable challenges that an influx of new people brings to our world. What, then, have we learned about the new immigrants and the new immigrant families to the Heartland? What challenges do they face in their journey to create a safe, prosperous, and harmonious new home for themselves and their loved ones and friends? What strengths do they possess to accomplish these goals? What gifts do they bring to our region? Let\u27s go back to the original questions posed by the authors, and discuss what we have learned

We Welcome the New Immigrants

From the very beginning of this project we have focused on taking a balanced approach to identifying the strengths and challenges of new immigrants in the Great Plains. Discussions of change in our world invariably focus on problems, and only occasionally on the strengths. We set out to look at new immigrants from a different perspective, in our view, a more realistic perspective: seeing the inherent strengths they possess as newcomers to our region and the gifts they bring, and examining the cultural assets the newcomers and the longer-term residents all can rely upon in working together to meet the inevitable challenges that an influx of new people brings to our world. What, then, have we learned about the new immigrants and the new immigrant families to the Heartland? What challenges do they face in their journey to create a safe, prosperous, and harmonious new home for themselves and their loved ones and friends? What strengths do they possess to accomplish these goals? What gifts do they bring to our region? Let\u27s go back to the original questions posed by the authors, and discuss what we have learned