Here we present a phylogeny of beetles (Insecta: Coleoptera) based on DNA sequence data from eight nuclear genes, including six single-copy nuclear protein-coding genes, for 367 species representing 172 of 183 extant families. Our results refine existing knowledge of relationships among major groups of beetles. Strepsiptera was confirmed as sister...
The ALGEBRA READER models how an expert might read an algebra word problem. When experts read such problems they are believed to use pattern-indexed schemata and heuristics for known problem categories. These schemata are represented by pattern-action pairs that interact concurrently with the augmented transition network used to parse the...
Stream restoration efforts have increasingly started to focus on management actions that restore ecological function rather than focusing on species-specific habitat needs. Restoration practitioners in the Pacific Northwest have implemented numerous large-scale floodplain restoration projects to restore stream function at the valley scale. Some of these projects attempt to restore...
For gender-related information, previous studies have shown that children of
preschool age are more likely to remember schema-consistent information
over schema-inconsistent information. In this study, an attempt was made to
boost children's recognition for inconsistent information. In order to do this,
children were presented with pictures of both gender-consistent and...
Previous work in this laboratory revealed that hormone analysis using fecal samples may predict the number of fetuses carried by pregnant ewes at mid- to late gestation. Reliable lambing number prediction is useful to the producer. Using gas chromatography/mass spectrometry the 5α- and 5β-series of pregnanes and selected 4- and...
A comparison between crown competition factor and basal area as to their ability to predict future basal area growth was conducted. It was shown that for a single age and site combination there was no real difference between the growth prediction ability of the two measures of stand density.
It...
Implements for tilling compacted forest soils were
tested on sites logged with ground-based machines in
Oregon. The sites covered a variety of soil conditions
ranging from a clay loam to a rock7 2C2 iplemeflts
tested included disk harrows (four aies), brusa blades
(three sites), standard subsoiler tines (two sites), wing.-...
