Growth characteristics of otoliths were used to determine age, and to separate known races and stocks of steelhead trout (Salmo
gairdneri). Otoliths were the first calcified structures observed in X-ray photographs of steelhead embryos, and a continuous record of events through life was interpreted from these structures. A direct
relationship...
The dynein molecule is a peculiar motor protein recognized for its unique stepping behavior. Sometimes it steps forwards. Other times it steps backwards. It has even been observed to occasionally shuffle by beginning a step with the same domain many times in row. These motions make dynein an interesting object...
Multiprocessor computers may eventually be the only method of
increasing computer throughout. One of the major problems with
multiprocessor computers is the interference or contention between
processors when accessing a shared resource. This work describes the
design, construction, and analysis of a prototype multiprocessor computer utilizing a replicated shared memory...
The type section of the Mascall Formation, which is located in
the John Day Valley, is interpreted to represent a sequence of
paleosols. These fossil soils were formed on a floodplain during the
middle Miocene. The measured thickness of this section is 1340 feet,
and although the top of the...
Glutathione, a ubiquitous intracellular tripeptide, protects cells by reacting with electrophiles and radicals that can damage cellular macromolecules. However, glutathione conjugation is now recognized as one mechanism by which drugs and xenobiotics can also be converted to reactive intermediates having toxic consequences to cells. The halogenated alkane 1,2-dichloroethane forms S-(2-chloroethyl)...
Pleistocene glaciation in the upper elevations of the
Western Cascade Mountains took two characteristic forms: cirque and
valley glaciers. Field observations in the Neal Creek and Thomas
Creek drainage areas of Snow Peak provide evidence of three glacial
advances. Glacial landforms in the Neal Creek Valley are dominated
by a...
