Lamprey eel harvesting has systematically and periodically occurred along the Siletz River and its tributaries for as many as hundreds, or thousands, or tens of thousands of years that human families and lamprey eel populations have coexisted in the Siletz Valley ecosystem. Historical, cultural, and biological information for the twentieth...
Published June 1934. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Cystic ovarian disease (COD) is an anovulatory condition in cattle
that afflicts between 6-18% of all dairy cows in the US. Ovulation is
dependent on the plasminogen activator (PA) family of proteases
and protease inhibitor for proteolysis, culminating in follicular rupture.
Failure of the follicle to ovulate suggests an aberration...
"Originally printed in the Zeitschrift für Ethnologie, Jahrgang 1924, Heft 1-4"--Preface.
"The tribes which are the most fully described in these notes are the Snohomish, the Snuqualmi and the Nisqually. There is some information about ... other ... groups."
Industrial operations are becoming more mechanized and
automated. The increasing complexity of work affects the proportion
of physical to mental effort which workers spend in the performance
of their jobs. Traditional work measurement techniques which are
primarily designed to measure the individual's physical load have to
be complemented with other...
In 1959 the British Ornithological journal, The Ibis, published a centenary commemorative volume on the history of ornithology in Britain. Over the previous few decades, the contributors to this volume had helped focus the attention of ornithologists on the methods, priorities, and problems of modem biology, specifically the theory ofevolution...