Greater sage-grouse (Centrocercus urophasianus) populations have declined across their geographic range during the last century. They were once widespread throughout the Intermountain West, but lower annual productivity, likely caused by degradation and loss of suitable habitat, has greatly reduced their distribution and population densities. Habitat used for reproduction has been...
In particle induced desorption-ionization mass spectrometry the strength of an
analyte's signal under a given set of bombardment conditions is usually considered to
be representative of the analytes relative surface activity. This rationale is generally
used to explain differences in the technique's sensitivity between and within various
classes of compound....
The fragmentation characteristics of protonated peptides have been investigated using
tandem mass spectrometry (MS/MS) under various fragmentation regimes and detailed
density functional theory (DFT) reaction pathway calculations. The DFT calculations
predict novel salt-bridge stabilized transition structures as well as consecutive reactions
occurring in proton-bound dimers for some of the ions...
Processes of metamorphosis, settlement, and growth were examined in Pacific sanddab
using field studies and otolith microstructure. This flatfish transforms at large sizes, has a
gradual metamorphosis, and settles to a nursery on the middle continental shelf. Eye migration
takes 3 months and "metamorphosis proper" which begins after completion of...
This paper describes a study of two-phase gas-liquid vertical
annular climbing film flow. Using a high speed Fastax movie camera,
motion was slowed sufficiently to facilitate detailed analysis of the
climbing film structure, based on single frame projections. The
dynamic characteristics of the liquid film could likewise be obtained,
though...
This paper discusses the structure, rationale, and
application of a monitoring system specifically designed to
identify and record conversion of lands with Soil Conservation
Service Soil Capability Classes I-IV. Research methodology and
design are structured to objectively assess the rates of agricultural
land conversion to non-farm uses over a given...
Age structure and growth of shells of the Pacific basket-cockle,
Clinocardium nuttallii in Netarts Bay, Oregon, were investigated with
special emphasis on the differences between subtidal and intertidal
populations. The cockle was chosen for study because its growth is
highly sensitive to physical factors in the environment. Evidence is
presented...
A two-dimensional model for predicting the rate of radiation
heat transfer for the interior of an industrial furnace is described.
The model is two-dimensional due to the assumptions of the heat
source as an infinite radiating plane and the heat sink as rows of
parallel tubes that are both infinite...
Past research has implied that differences in blender performance
between commercial and laboratory particleboard blenders
may not be attributed to resin distribution between screen fractions,
as is commonly believed in the industry today, but to which particles
within a screen fraction have resin and which do note
To test this,...