Dichromate oxidation is a simple technique that is often Ilsed to estimate the energy content of eggs in studies of marine invertebrate life histories (1). We used this method to measure the energy contents af the eggs of 12 species of marine annelids. In combinati on with measures of egg ash­ free dry weight (AFDW), these data yielded estimates of AFDW-specific energy density that were mostly ...

BACKGROUND Significant growth has been observed in the field of foot and ankle research in recent years. However, bibliometric studies concerning the quantity and quality of articles published in foot and ankle journals are scarce. This study aimed to reveal the characteristics of national productivity in the field of foot and ankle research and to provide a general picture of foot and ankle re...

This is the third update of research on graduated driver licensing (GDL) and related teenage driver issues. It briefly summarizes research published since or not included in the 2005 update (Hedlund, J., & Compton, R. (2005). Graduated driver licensing research in 2004 and 2005. Journal of Safety Research, 36(2), 109-119.), describes research in progress of which the authors are aware, and anno...

Several international conservation organizations have recently produced global priority maps to guide conservation activities and spending in their own and other conservation organizations. Surprisingly, it is not possible to directly evaluate the relationship between priorities and spending within a given organization because none of the organizations with global priority models tracks how the...

The American Sociologist / Fall/Winter 2005 Steven Brint is professor of sociology at the University of California, Riverside. Among other works, he is the author of The Diverted Dream (with Jerome Karabel), In an Age of Experts, and Schools and Societies. His work has won prizes from the American Educational Research Association, the Association of Colleges and Universities, and the American S...

Researchers from seven European nations and the United States have published reports of increasing rates of hypospadias during the 1960s, 1970s, and 1980s. Reports of increasing rates of cryptorchidism have come primarily from England. In recent years, these reports have become one focus of the debate over endocrine disruption. This study examines more recent data from a larger number of countr...

The recently published World Health Organisation strategy document on road safety starts with the startling statistic that over 1.2 million people die each year on the world’s roads and, not surprisingly lowand middle-income countries have much higher road traffic fatality rates than high-income countries. Almost half of those who die on the roads are pedestrians, cyclists or users of motoriz...

Dynamic Product-Service Business Ecosystems (DPSBEs) are collaborative forms that aim to handle product-service business actions in a business ecosystem by creating, sharing, using and reusing information across functional teams and enterprise boundaries. DPSBEs depend on the ability of their members’ information systems to interoperate. This ability is related to making their semantics explici...

The dual Meissner effect is described and numerically observed in a gauge-invariant way in lattice Monte-Carlo simulations in pure SU(2) QCD. The squeezing of the non-Abelian electric field between a pair of static quark and anti-quark occurs due to the solenoidal current coming from the gauge-invariant monopole-like quantity. Preliminary results are obtained with respect to the vacuum type of ...