Trends in ecology: shifts in ecological research themes over the past four decades

Long-term Trends in Benthic Macroinvertebrate Populations in Lake Huron over the Past Four Decades

Surveys of the benthic macroinvertebrate community were conducted in the main basin of Lake Huron in 2000 and 2003, and in Georgian Bay and North Channel in 2002. Results were compared to surveys conducted in the 1960s and early 1970s. Although data of earlier surveys were inconsistent, our best estimates suggest that total density of the four major benthic taxa (Diporeia spp., Oligochaeta, Sph...

Explaining Changes in Child Poverty Over the Past Four Decades

Huntington disease in County Donegal: epidemiological trends over four decades.

The prevalence rate of Huntington disease in County Donegal between 1961 and 1991 showed a decrease from 4.4 to 1.6 per 100,000 population. Emigration and reduction in family size probably account for the progressive decline in prevalence. Over the same time period in the rest of Europe, prevalence has declined only gradually, or has remained static.

Caesarean Section Change Trends in Iran and Some Demographic Factors Associated with them in the Past Three Decades

Nowadays, the health care system of many communities is encountering a common problem: the growing number of women undergoing the Caesarean section (CS). One of these countries is Iran. This article presents an overall review on the research conducted hitherto in Iran on the reasons for the growth in the number of CS deliveries in the past three decades. We considered demographic factors, inclu...

Assessing the Gap in Female Authorship in Radiology: Trends Over the Past Two Decades.

PURPOSE The aim of this study was to retrospectively identify trends in the representation of female authorship in prominent general radiology journals over the past 2 decades. METHODS A comprehensive search was conducted for all articles published in 1993, 2003, and 2013 in Radiology, the American Journal of Roentgenology (AJR), European Radiology, and Investigative Radiology. The genders of...