Some studies suggest that attention can be captured by irrelevant, salient objects when they appear rarely. We addressed this issue using the N2pc effect, a lateralized, negative voltage spike in the brain potentials in parietal cortex, thought to reflect attentional allocation. A cue display was followed by a target display...
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those we are currently looking for (contingent capture; e.g., Folk, Remington, & Johnston, 1992; Lien
Some studies suggest that attention can be captured by irrelevant, salient objects when they appear rarely. We addressed this issue using the N2pc effect, a lateralized, negative voltage spike in the brain potentials in parietal cortex, thought to reflect attentional allocation. A cue display was followed by a target display...
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properties match those we are
currently looking for (contingent capture; e.g., Folk, Remington, & Johnston
Subsurface mapping was used to determine the structure andgeologic history of the South Cuyama dome and part of the Russellfault in the South Cuyama oil field area. Deformed Late Cretaceousand or early Tertiary marine strata are unconformably overlain bythe late Oligocene to early Miocene Vaqueros Formation (QuailCanyon Sandstone Member, Soda...
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the writing of the thesis. Lamar and Isabelle Johnston
generously provided lodging at their ranch in
The thermodynamic history of the Earth is preserved in the trace element record created through igneous processes. The ability to interpret that record depends on the accuracy and precision of numerical models that connect igneous processes with their geochemical consequences. This project answers three major questions concerning the relationship between...
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clinopyroxene, the M1, M2, and Z sites, arranged
as M2M1Z2O6. The Z site (radius ~0.315Å) is the tetrahedral
Mixia osmundae (Basidiomycota, Pucciniomycotina) represents a monotypic class containing
an unusual fern pathogen with incompletely understood biology. We sequenced and analyzed
the genome of M. osmundae, focusing on genes that may provide some insight into its
mode of pathogenicity and reproductive biology.
Mixia osmundae has the smallest plant pathogenic basidiomycete...
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RW, Dujon B, Feldmann H, Galibert F, Hoheisel
JD, Jacq C, Johnston M et al. 1996. Life with 6000
For decades, the bio-duck sound has been recorded in the Southern Ocean,
but the animal producing it has remained a mystery. Heard mainly during
austral winter in the Southern Ocean, this ubiquitous sound has been
recorded in Antarctic waters and contemporaneously off the Australian
west coast. Here, we present conclusive...
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A combination of batch fermentations and genome scale flux balance analysis were used to identify and quantify the rate limiting reactions in the xylulose transport and utilization pathway. Xylulose phosphorylation by xylulokinase was identified as limiting in wild type Saccharomyces cerevisiae, but transport became limiting when xylulokinase was upregulated. Further...
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vector z con-
tains the media metabolite concentrations in moles. The rate of
change of each component in
Surface transient storage (STS) and hyporheic transient storage (HTS) have
functional significance in stream ecology and hydrology. Both provide refugia for aquatic
communities and their longer mean residence times (compared to the main flow) increase
the potential for biogeochemical reactions that can improve water quality. As STS and
HTS have...
Mat-forming “ground layers” of mosses and lichens often have functional impacts disproportionate to their biomass, and are responsible for sequestering one-third of the world's terrestrial carbon as they regulate water tables, cool soils and inhibit microbial decomposition. Without reliable assessment tools, the potential effects of climate and land use changes...
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al. 2011 — Muir et al. 2006 — —
Cranberry production Johnston et al. 2008 — — — —
34 The Bryologist
A new functional gene database, FOAM (Functional
Ontology Assignments for Metagenomes), was developed
to screen environmental metagenomic sequence
datasets. FOAM provides a new functional
ontology dedicated to classify gene functions relevant
to environmental microorganisms based on Hidden
Markov Models (HMMs). Sets of aligned protein
sequences (i.e. ‘profiles’) were tailored to...
BACKGROUND: Gas stoves emit pollutants that are respiratory irritants. U.S. children under age 6 who live in homes
where gas stoves are used for cooking or heating have an increased risk of asthma, wheeze and reduced lung
function. Yet few studies have examined whether using ventilation when operating gas stoves...
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1995, 68:11–23.
24. de Bilderling G, Chauhan AJ, Jeffs JAR, Withers N, Johnston SL, Holgate ST,
Clough
Understanding responses of marine species to temperature variability is essential
to predict impacts of future climate change in the oceans. Most ectotherms are
expected to adjust their behavior to avoid extreme temperatures and minimize
acute changes in body temperature. However, measuring such behavioral plasticity
in the wild is challenging. Combining...
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in fish
(Johnston and Dunn 1987).
No relationship was found between the amount of pre-
cipitation
Ecological niche theory holds that species distributions are shaped by a large and complex suite of interacting factors. Species distribution models (SDMs) are increasingly used to describe species’ niches and predict the effects of future environmental change, including climate change. Currently, SDMs often fail to capture the complexity of species’...
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(Galbreath et al., 2009; Beever et al., 2010; Calk-
ins et al., 2012; Johnston et al., 2012; Stewart et al
Two measured sections of the upper Silurian Douro
Formation from Devon Island, N.W.T. were examined for their
faunal content with emphasis on the paleoecology and taxonomy
of the fauna. Atrypella is believed to have lived with
its beaks embedded in the muddy substrate of a somewhat
restricted environment. Intermittent, low...
Siletzia is a basaltic Paleocene and Eocene
large igneous province in coastal Oregon,
Washington, and southern Vancouver Island
that was accreted to North America in the
early Eocene. New U-Pb magmatic, detrital
zircon, and ⁴⁰Ar/³⁹Ar ages constrained by
detailed field mapping, global nannoplankton
zones, and magnetic polarities allow correlation
of...
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Report on CICEET grant research in coordination with Laura Brophy, Marine Resource Management Program, OSU-COAS September 2009 - June 2011.
Tidal wetlands are a powerful carbon sink. They can sequester an order of magnitude
more carbon than any other type of wetland system, and emit only negligible amounts
of methane...
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. Climatic
Change. Doi: 10.1007/s10584-010-9848-z.
Nelson, D.W. and L.E. Sommers. 1996. Total carbon
Polycomb Repressive Complex 2 (PRC2) function and DNA methylation (DNAme) are typically correlated with gene repression. Here, we show that PRC2 is required to maintain expression of maternal microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) from the Gtl2-Rian-Mirg locus, which is essential for full pluripotency of iPSCs. In the absence...
Dietary restriction (DR) is the gold standard intervention used to delay aging, and much recent research has focused on
the identification of possible DR mimetics. Energy sensing pathways, including insulin/IGF1 signaling, sirtuins, and
mammalian Target of Rapamycin (mTOR), have been proposed as pathways involved in the antiaging actions of DR,...
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Distinctive Changes in Mouse Liver
Yu, Z., Wang, R., Fok, W. C., Coles, A., Salmon, A. B., & Pérez, V. I