On 24 October 1950, fourteen people met at the invitation of the abbé Arthur Maheux in the Institut d’Histoire et de Géographie, of the Université Laval in Quebec City to form the Société canadienne d’histoire de la médecine (SCHM). Among them were physicians, historians, and archivists. Dr. Sylvio Leblond (1901-1990), internist and instructor of medical history at Laval, was elected president ...

It is increasingly acknowledged that soil biota may influence interactions among plant species; however, little is known about how to change historical influences of previous land management on soil biota, the so-called 'biotic soil legacy effect'. We used a two-phase plant community-soil feedback approach to study how plant species typical to original (i.e. undisturbed) and degraded fen meadow...

This article deals with the problem of species independence Carex sordida. Closely related sect. Carex, C. sordida, atherodes, and drymophila, were analyzed based on material from Asian Russia. Based morphological characteristics, it was suggested that sordida is more closely to atherodes than drymophila. Molecular analysis using matK plastid gene ITS2 ETS nuclear ribosomal spacers confirmed a ...

In this study, the soil moisture content was measured, and the quantitative characteristics of this sedge species were compared. The phenotypic plasticity of each parameter and the linear regression relationships were analyzed. The results showed that the soil moisture content was significantly affected by location, soil depth, and sampling date. The aboveground biomass, underground biomass, bi...

Soil aggregate stability data are often predicted to be positively associated with measures of plant productivity, rangeland health, and ecosystem functioning. Here we revisit the hypothesis that soil aggregate stability is positively associated with plant productivity. We measured local (plot-to-plot) variation in grassland community composition, plant (aboveground) biomass, root biomass, % wa...

INTRODUCTION This paper describes the available exposure information for carcinogens in Great Britain and discusses some of the issues involved in using such data to inform an assessment of the attributable occupational cancer burden. METHODS Carcinogenic agents or occupations/industries such as hairdressers were identified from the list of International Agency for Research on Cancer groups 1...