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A comparative paleolimnological assessment of the influences of early Arctic population groups on freshwater ecosystems from southern Baffin Island, Nunavut
Recent paleolimnological research in the eastern Canadian high Arctic on the ecological impact of the Thule c.1000-1500 AD has documented the influence of prehistoric anthropogenic activities. Six lake and pond sites ...
Changes in Scaled-Chrsyophyte Assemblages in Response to Recent Climate Change in Northwestern Ontario
A two-part paleolimnological study was conducted to: i) understand the important factors that are related to the present-day distribution of scaled-chrysophytes; ii) investigate changes in the scaled-chrysophyte assemblages ...
Srk1 kinase suppresses mitosis in response to heat stress in fission yeast
Fission yeast Srk1 kinase is essential for cellular responses to extracellular stimuli. It is activated downstream of the MAPK Spc1 and participates in controlling mitotic entry by directly phosphorylating and inhibiting ...
The Effects of Metabolic Depression Induced by Food Deprivation on Hypoxia Tolerance of Juvenile Rainbow Trout (Oncorhynchus mykiss)
Hypoxic condition is a naturally occurring environmental stressor in aquatic ecosystems. However, due to modern anthropocentric activities, hypoxia has been increasing in prevalence and severity. Rainbow trout, a keystone ...
In vivo regulatory phosphorylation of bacterial-type phosphoenolpyruvate carboxylase from developing castor oil seeds
PEPC [PEP(phosphoenolpyruvate) carboxylase] is an essential and tightly controlled enzyme located at the core of plant C-metabolism. It fulfils a broad spectrum of non-photosynthetic functions, particularly the anaplerotic ...
Comparative toxicity and bioavailability of heavy fuel oils to fish using different exposure scenarios
Heavy fuel oils (HFO) are produced from the refining of crude oils, and have high specific gravities and high viscosities. In recent years, spills of HFO have increased in the environment, and are of great concern because ...