Skeletal indicators of pregnancy and parturition: a historical review

Over a century of scientific literature has documented the research and analysis relating to the possible skeletal evidence of pregnancy, parturition, and childcare, yet today, there still exists variation in methodology and interpretation. Historical perspective facilitates understanding of the growth and development of the theories and research currently available to the forensic science community. Review of the relevant literature clearly indicates that specific skeletal alterations are not exclusively connected to obstetrical events. Although parturition and related events have been shown to leave various alterations on bone, the research record also demonstrates that other factors can contribute to the same or similar changes. Additionally, such alterations can often be found in nulliparous women and men and are frequently absent in parous and multiparous women. This literature review calls for the continued exploration of skeletal alterations for determining parity status in human skeletal remains.     

Recovery Rates of Human Fetal Skeletal Remains Using Varying Mesh Sizes

Human fetal skeletal elements of different gestational ages were screened with multiple mesh sizes (6.4 mm [1/4 inch], 3.2 mm [1/8 inch], 2.0 mm, and 1.0 mm) to determine their recovery rates. All remains were previously macerated, and no significantly damaged elements were used. The 6.4 mm mesh allowed a large loss of elements (63.2% overall), including diagnostic elements, while no diagnostic elements were lost when the 1 mm mesh (0.2%) was used. When using the 3.2 mm mesh, 16.2% of the bones were lost, including some diagnostic elements (primarily tooth crowns), while 7.5% were lost using the 2.0 mm mesh. The authors recommend that the potential loss of information incurred when utilizing larger mesh sizes be taken into consideration when planning recovery methods where fetal remains may be encountered and that a minimum of 1.0 mm mesh be utilized in recovery contexts known to include fetal remains.     

Environmental policy integration among multilateral environmental agreements: the case of biodiversity

The system of multilateral environmental agreements (MEAs) comprises hundreds of conventions and protocols designed to protect the environment. Institutional interaction within the MEA system raises issues of environmental policy integration (EPI), i.e. balancing different environmental objectives and considerations. Mainstream proposals for enhancing EPI in environmental governance build upon the assumption that environmental institutions are fragmented. However, recent research reveals that the MEA system has been defragmenting over the years such that EPI is less a problem of institutional fragmentation than of effective management of institutional interplay. This paper examines the factors affecting EPI among MEAs by looking at experiences in the cluster of biodiversity-related multilateral agreements. The analysis is based on a series of interviews with MEA secretariat officials and international experts conducted between September 2011 and January 2012. The paper identifies institutional, political and cognitive barriers constraining interplay management efforts. While some have proposed regulatory changes in the cluster, national-level co-ordination appears to be the best way to advance EPI.