Climate change and sea turtles : a 150-year reconstruction of incubation temperatures at a major marine turtle rookery

Sea turtles show temperature dependent sex determination. Using an empirical relationship between sand and air temperature, we reconstructed the nest temperatures since 1855 at Ascension Island, a major green turtle (Chelonia mydas) rookery. Our results show that inter-beach thermal variations, previously ascribed to the albedo of the sand, which varies hugely from one beach to another, have persisted for the last century. Reconstructed nest temperatures varied by only 0.5 °C on individual beaches over the course of the nesting season, while the temperature difference between two key nesting beaches was always around 3 °C. Hence inter-beach thermal variations are the main factor causing a large range of incubation temperatures at this rookery. There was a general warming trend for nests, with a mean increase in reconstructed nest temperatures for different months of between 0.36 and 0.49 °C for the last 100 years.

Resistance and reconstruction: Older women talk about childhood sexual abuse

Research which explores the experiences of women, who have experienced childhood sexual abuse is, in the main, focused on young and middle aged women. The perspectives of older women is often absent or hidden in the literature. This study explores the experiences of 16 Australian women aged 57 years and older who have experienced childhood sexual abuse. It aims to privilege their views and highlight their particular contexts in order to redress professional assumptions regarding the notions of recovery. Additionally, in discussing their experiences, the women contribute to insights regarding the patterns of inequality which are produced as a result of dominant discourses that promote ageist and sexist prescriptions in the construction of the self. These insights demonstrate how the women have resisted a range of oppressive patterns in their everyday lives. The study follows a feminist research framework and aims to contribute to the fields of social work practice and critical feminist gerontology.

Recognition, resistance and reconstruction : an introduction to subjectivities and social justice

The aim of this book is to examine new forms of resistance to social injustices in contemporary Western societies. Resistance requires agency, and agency is grounded in notions of the subject and subjectivity. It is a premise of this book that new and/or reconstructed forms of subjectivity are required to challenge social relations of subordination and domination.
Subjectivity is primarily based on lived experience. While subjectivity is sometimes used to explore individualistic strategies for personal meaning, we argue that subjectivity is central to political struggles against regimes of power. Thus, understanding how subjects are constituted is important in fostering the capacity of critical reflection and social transformation.
Our aim  is to understand the relationship between subjectivity and the wider social order. The relationship between the psyche and society is one of the most challenging issues facing social theory. While there is a variety of theoretical approaches to subjectivity, those that explore the links between the subject and society are the most promising in developing strategies for resistance. In this introductory chapter, we review and interrogate what we believe are the most important theoretical approaches to subjectivity, drawing upon Marxism, critical theory, feminism, postcolonialism and post-structuralism. Our aim in this book is not to develop a new theory of subjectivities. Rather, we are more concerned with investigating how diverse subjectivities are constructed and reconstructed.

Effects of Mitochondrial DNA Rate Variation on Reconstruction of Pleistocene Demographic History in a Social Avian Species, Pomatostomus superciliosus

Mitochondrial sequence data is often used to reconstruct the demographic history of Pleistocene populations in an effort to understand how species have responded to past climate change events. However, departures from neutral equilibrium conditions can confound evolutionary inference in species with structured populations or those that have experienced periods of population expansion or decline. Selection can affect patterns of mitochondrial DNA variation and variable mutation rates among mitochondrial genes can compromise inferences drawn from single markers. We investigated the contribution of these factors to patterns of mitochondrial variation and estimates of time to most recent common ancestor (TMRCA) for two clades in a co-operatively breeding avian species, the white-browed babbler Pomatostomus superciliosus. Both the protein-coding ND3 gene and hypervariable domain I control region sequences showed departures from neutral expectations within the superciliosus clade, and a two-fold difference in TMRCA estimates. Bayesian phylogenetic analysis provided evidence of departure from a strict clock model of molecular evolution in domain I, leading to an over-estimation of TMRCA for the superciliosus clade at this marker. Our results suggest mitochondrial studies that attempt to reconstruct Pleistocene demographic histories should rigorously evaluate data for departures from neutral equilibrium expectations, including variation in evolutionary rates across multiple markers. Failure to do so can lead to serious errors in the estimation of evolutionary parameters and subsequent demographic inferences concerning the role of climate as a driver of evolutionary change. These effects may be especially pronounced in species with complex social structures occupying heterogeneous environments. We propose that environmentally driven differences in social structure may explain observed differences in evolutionary rate of domain I sequences, resulting from longer than expected retention times for matriarchal lineages in the superciliosus clade.

Is anterior cruciate reconstruction superior to conservative treatment?

Not all patients who have a rupture of the anterior cruciate ligament (ACL) elect to have surgical reconstruction. The aim of this study was to assess the short-to-medium-term results of patients who chose conservative management in comparison to patients who had reconstructive surgery within the same time period. Sixty-three patients with an ACL injury were retrospectively studied. Forty patients were managed, according to patient choice, with ACL reconstruction and 23 conservatively. Four validated questionnaires were used to assess general and knee-specific function in a cohort with a median age of 32 years and a median follow-up period of 38 months. Patients were matched on demographic variables except for gender. There were no statistically significant differences in the outcome measures, and the majority of patients would proceed with the same treatment in the event the control leg became injured. Patients who elect to have conservative management of an ACL rupture can achieve similar function and satisfaction to those who elect to have reconstruction. Until a large randomized controlled trial is conducted, patients need to be made aware of the merits of both management strategies and the lack of evidence of superiority of one over the other.

Roles of civil society in nation-building and post-conflict reconstruction in Iraq

 This thesis aims to provide a nuanced typology of post-2003-war Iraqi CSOs that reflect their functions, rather their manifestations, by analysing and examining their roles in socio-economic service provisions and active citizenship; the impact of their roles in nation-building; and the geographic field (rural or urban) of their activities.

Persisting side-to-side differences in bone mineral content, but not in muscle strength and tendon stiffness after anterior cruciate ligament reconstruction

Tendon stiffness may be involved in limiting peak musculoskeletal forces and thus may constitute an upper limit for bone strength. The patellar tendon bone (PTB) graft, which is harvested from the patellar tendon during surgical reconstruction of the anterior cruciate ligament (ACL), is an ideal scenario to test this hypothesis. Eleven participants were recruited who had undergone surgical reconstruction of the ACL with a PTB graft 1-10 years prior to study inclusion. As previously reported, there was no side-to-side difference in thigh muscle cross-sectional area, in maximum voluntary knee extension torque, or in patellar tendon stiffness, suggesting full recovery of musculature and tendon. However, in the present study bone mineral content (BMC), assessed by peripheral quantitative computed tomography, was lower on the operated side than on the control side in four regions studied (P = 0·0019). Differences were less pronounced in the two sites directly affected by the operation (patella and tibia epiphysis) when compared to the more remote sites. Moreover, significant side-to-side differences were found in BMC in the trabecular compartment in the femoral and tibial epiphysis (P = 0·004 and P = 0·047, respectively) with reductions on the operated side, but increased in the patella (P = 0·00016). Cortical BMC, by contrast, was lower on the operated side at all sites except the tibia epiphysis (P = 0·09). These findings suggest that impaired recovery of BMC following ACL reconstruction is not because of lack of recovery of knee extensor strength or patellar tendon stiffness. The responsible mechanisms still remain to be determined.

Resistance and reconstruction: older women talk about childhood sexual abuse

 This research explores personal stories of 16 Australian women aged 57 years and older who have experienced childhood sexual abuse. It privileges their views and examines how they managed the impact during their lives. The project contributes to professional knowledge by developing anti-ageist practices for social work and human services.