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The agricultural revolution and the conditions of the rural poor, southern Sweden 1750–1860

The social consequences of agrarian change have been widely debated. The traditional view of the lower classes becoming increasingly vulnerable due to the loss of access to resources has been met with the revisionist view that this change was counteracted by an increase in the volume and regularity of employment due to investments and new farming practices. This article address this issue by study

Why work beyond 65? Discourse on the decision to continue working or retire early

This study examined retirement decisions among people who had left working life before 65 years of age and those working beyond 65 years in an extended working life. The results were used to make a model about their considerations, weighting and decision making, and important factors and themes in working beyond 65 years of age or retiring before 65. The interviewees seemed to have considered and

Dark adaptation during systemic hypoxia induced by chronic respiratory insufficiency

PURPOSE: To investigate dark adaptation during hypoxia in patients with chronic respiratory failure.METHODS: At three visits, dark adaptation was recorded by computerized dark adaptometry in 13 patients with chronic respiratory insufficiency treated by long-term oxygen therapy. At visits 1 and 3, the patients were administered their usual oxygen supplement. At visit 2, no oxygen was given. At each

Evidence for Geographical and Racial Variation in Serum Sex Steroid Levels in Older Men.

Background: Despite considerable racial and geographical differences in human phenotypes and in the incidence of diseases that may be associated with sex steroid action, there are few data concerning variation in sex steroid levels among populations. We designed an international study to determine the degree to which geography and race influence sex steroid levels in older men. Methods: Using mass

Dissolved oxygen controller based on on-line measurements of ammonia combining feed-forward and feedback

As the largest single energy-consuming component in most biological wastewater treatment systems, control of aeration is of great interest seen from an energy savings point of view. This paper suggests a simple way of using on-line ammonium measurements to control aeration in a pre-denitrification plant by controlling the dissolved oxygen setpoint. The controller works primarily by feed-forward ba

New insights into PKC family affairs: three novel phosphorylation sites in PKCepsilon and at least one is regulated by PKCalpha.

PKCepsilon (protein kinase Cepsilon) is a serine/threonine kinase, and a member of the PKC family of isoforms. The different PKC isoforms regulate many cellular processes of importance for disease. It is therefore desirable to obtain tools to specifically modulate the activity of the individual isoforms and to develop markers of PKC activity. The paper by Durgan et al. in this issue of the Biochem

Lidar fluorescence measurements of algal growth on electrical insulators

Fluorescence measurements using lidar techniques have been shown to be useful for monitoring of algal growth on e.g. historical monuments. In this experiment similar measurements were performed on electrical insulators to examine the correlation between algal growth and the quality of the insulator, a factor of importance in the high-voltage grid management