A library’s Web site is well-recognized as the gateway to the library for the vast majority of users. Choosing the most user-friendly Web architecture to reflect the many services libraries offer is a complex process, and librarians are still experimenting with what works best for their users. As part of...
Tree-ring analysis was applied to assess the impacts of the fungal disease Swiss needle
cast on the radial growth of mature Douglas-fir (Pseudotsuga menziesii) forests in the
western Oregon Coast Range. Although considered endemic to the Pacific Northwest,
Swiss needle cast has significantly lowered productivity in Douglas-fir forests only in...
The Oregon ExplorerTM (www.oregonexplorer.info) strives to support informed decisions and actions by people concerned with Oregon's natural resources and environment. The Oregon Explorer's multi-media environment integrates archived digital documents, mapping and decision support tools, and finding aids for specific natural resource issues and topics. This paper presents the chronology of...
Seamount research, more often than not,
is carried out by highly specialized science
teams with narrowly focused science objectives.
As a result, different seamount science
disciplines often do not collaborate or are
not even aware of each other. However, it is
obvious that interdisciplinary collaboration
is the most successful approach...
Seamounts are windows into the deep Earth that are helping to
elucidate various deep Earth processes. For example, thermal and mechanical
properties of oceanic lithosphere can be determined from the flexing of oceanic
crust caused by the growth of seamounts on top of it. Seamount trails also are
excellent recorders...
This article presents the results of an exploratory study asking faculty in the first-year writing
program and instruction librarians about their research process focusing on results specifically
related to serendipity. Steps to prepare for serendipity are highlighted as well as a model for
incorporating serendipity into a first-year writing course.
Advective skew dispersion is a natural Markov process defined ned
by a di ffusion with drift across an interface of jump discontinuity in
a piecewise constant diff usion coeffcient. In the absence of drift this
process may be represented as a function of -skew Brownian motion
for a uniquely determined...
Marine renewable energy promises to assist in the effort to reduce
carbon emissions worldwide. As with any large-scale development in the marine
environment, however, it comes with uncertainty about potential environmental
impacts, most of which have not been adequately evaluated—in part because many of
the devices have yet to be...
Enhanced pool boiling critical heat fluxes (CHF) at reduced wall superheat on nanostructured
substrates are reported. Nanostructured surfaces were realized using a low temperature process,
microreactor-assisted-nanomaterial-deposition. Using this technique we deposited ZnO nanostructures
on Al and Cu substrates. We observed pool boiling CHF of 82.5 W/cm2 with water as
fluid...
The purpose of this paper is to provide an overview of the current state of worldwide mobile usage; mobile technologies; libraries' use of mobile technologies including a review of library mobile catalog options, both vendor-supplied and in-house created; perspectives from current library leaders and innovators on the importance of incorporating...
At Oregon State University (OSU) Libraries, librarians are evaluating the decade-old information commons in the transition to a learning commons. Visits to commons spaces at libraries across the country provided perspective on this transition. This paper describes the development of the OSU Libraries Information Commons, identifies themes from our trips...
River Influences on Shelf Ecosystems (RISE) is the first comprehensive
interdisciplinary study of the rates and dynamics governing the mixing of river and coastal
waters in an eastern boundary current system, as well as the effects of the resultant plume
on phytoplankton standing stocks, growth and grazing rates, and community...
This article seeks to make a compelling case for authors’ rights training through emphasis on academic librarians’ dual roles as both authors and as liaisons to research and teaching faculty. Using the example of the Rights Well Workshop developed at Oregon State University Libraries, the article demonstrates the value of...
We used reverse time capture-mark-recapture models to describe associations between rate of population change (λ) and climate for northern spotted owls (Strix occidentalis caurina) at six long-term study areas in Washington and Oregon, USA. Populations in three of six areas showed strong evidence of declining populations, while populations in two...
The relative importance of density, acoustic velocity, and microfibril angle (MFA) for the prediction of the stiffness (MOE) and strength (MOR) has not been well established for Douglas-fir (Pseudotsuga menziesii). MOE and MOR of small clear specimens of mature wood were better predicted by density and velocity than by either...
The crooked stems of some individuals of radiata pine (Pinus radiata D. Don) can hinder volume recovery and wood quality. To infer causes of crookedness and to learn how angle affects compression wood (CW) formation we studied 4+1-year old trees in southern Chile. Eight initially straight and 8 initially crooked...
• Coniferous, diffuse‐porous and ring‐porous trees vary in their xylem anatomy, but the functional consequences of these differences are not well understood from the scale of the conduit to the individual.
• Hydraulic and anatomical measurements were made on branches and trunks from 16 species from temperate and tropical areas,...
Comprehensive observations of velocity, density, and
turbulent dissipation permit quantification of the nonlinear
internal wave (NLIW) contribution to vertical heat flux and
lateral mass transport over New Jersey’s shelf. The effect of
NLIWs on the shelf heat budget was significant. On
average, heat flux in NLIWs was 10 times larger...
Throughout the western United States, the invasive annual grass, medusahead (Taeniatherum caput-medusae L. Nevski), is rapidly invading grasslands once dominated by native perennial grasses, such as bluebunch wheatgrass (Pseudoroegneria spicata (Pursh) A). It is also invading grasslands dominated by less undesirable invasive annual grasses, especially cheatgrass (Bromus tectorum L.). Understanding...
In this paper we introduce hexagonal global parameterizations, a new type of parameterization in which parameter lines respect six-fold rotational symmetries (6-RoSy). Such parameterizations enable the tiling of surfaces with regular hexagonal texture and geometry patterns and can be used to generate high-quality triangular remeshing. To construct a hexagonal parameterization...
This article discusses findings from a longitudinal research study that examined the way graduate students carry out the literature review and how they were impacted by attending a library literature review workshop. The literature review research process serves as an important gateway for graduate students’ into their scholarly communities’ practices,...
The lead Renovation, Repair, and Painting Rule and
the Consumer Product Safety Improvement Act, both enacted in 2008, were
intended to protect children from exposure to lead by setting federal limits
on lead content. Neither of these federal actions, however, addresses a newly
recognized pathway of exposure to lead from...
We present a new nitrogen isotope model incorporated into the three-dimensional ocean component of a global Earth system climate model designed for millennial timescale simulations. The model includes prognostic tracers for the two stable nitrogen isotopes, 14N and 15N, in the nitrate (NO3−), phytoplankton, zooplankton, and detritus variables of the...
North Atlantic right whales (Eubalaena glacialis) were found in an important nineteenth century whaling area east of southern Greenland, from which they were once thought to have been extirpated. In 2007–2008, a 1-year passive acoustic survey was conducted at five sites in and near the ‘Cape Farewell Ground’, the former...
Restriction of long-distance movement of several potyviruses in Arabidopsis (Arabidopsis thaliana) is controlled by at least three
dominant restricted TEV movement (RTM) genes, named RTM1, RTM2, and RTM3. RTM1 encodes a protein belonging to the
jacalin family, and RTM2 encodes a protein that has similarities to small heat shock proteins....
Flowering is the primary trait affected by ambient
temperature changes. Plant microRNAs
(miRNAs) are small non-coding RNAs playing an
important regulatory role in plant development. In
this study, to elucidate the mechanism of
flowering-time regulation by small RNAs, we
identified six ambient temperature-responsive
miRNAs (miR156, miR163, miR169, miR172, miR398
and...
The Oregon Spatial Data Library (http://spatialdata.oregonexplorer.info/) provides easy and convenient ways to find, access, and share geospatial data. Developed in partnership with the Oregon Department of Administrative Services (DAS), the Oregon Spatial Data Library provides access to spatial data including "framework" data for the State of Oregon. Framework datasets serve...
Undergraduate students are expected to find, evaluate and use peer-reviewed or scholarly literature, but they rarely learn about the process of creating new knowledge or the roles the literature plays in the work of scholars. A desired outcome of undergraduate education is the understanding that knowledge is created, evolving and...
Premise of the study: The Pacific Northwest of North America experiences relatively mild winters and dry summers. For the
tall coniferous trees that grow in this region, we predicted that loss in the hydraulic conductivity of uppermost branches would
be avoided because of difficulty reversing accumulated emboli in xylem that...
Carbon sequestration is increasingly recognized as an ecosystem service, and forest management has a large potential to alter regional carbon fluxes − notably by way of harvest removals and related impacts on net ecosystem production (NEP). In the Pacific Northwest region of the U.S.,
the implementation of the Northwest Forest...
Humans, in conjunction with natural top-down processes and through a sequence of cascading trophic interactions, may have contributed
to the Pleistocene megafaunal extinctions. The arrival of the first humans, as hunters and scavengers, through top-down forcing, could have
triggered a population collapse of large herbivores and their predators. We present...
We quantified the juvenile rearing and migratory patterns of individuals from a population of fall-spawning Chinook salmon Oncorhynchus tshawytscha in Oregon's Salmon River estuary using otolith microchemistry and microstructure. The study confirmed the daily periodicity of otolith growth increments in a natural fish population under field conditions and validated fundamental...
Automatic transfer of learned knowledge from one task or domain to another offers great potential to simplify and expedite
the construction and deployment of intelligent systems.
In practice however, there are many barriers to achieving this
goal. In this article, we present a prototype system for the
real-world context of...
The coded wire tag (CWT) database contains detailed information on millions of Pacific salmon
Oncorhynchus spp. released from hatcheries or smolt traps and recovered in the north Pacific Ocean and its tributaries. I used this data set to examine the spatial and temporal variation in the marine distributions of 77...
Focus group methodology was used to investigate graduate students' cross-campus technology, space and service needs. Although the library provides valued services and spaces, graduate students need enhanced and more equitable support for their roles as teachers and scholars. Librarians can provide leadership and act as advocates for graduate student needs...
Changes in the field of publishing and in scholarly communication have been impacting the distribution of scientific knowledge for years. The economics of publishing continues to have an impact on subscribers’ ability to maintain access and therefore the readership of established publications may diminish or look for legitimate alternatives to...
We tracked three groups of steelhead Oncorhynchus mykiss smolts implanted with acoustic transmitters to determine whether the degree of hatchery domestication or the juvenile rearing environment (hatchery raceway versus natural stream) influenced migration timing and survival in the Alsea River and estuary, Oregon. Two groups consisted of age-1 smolts reared...
Pacific rockfish experience high discard mortality when captured owing to a condition called barotrauma,which is caused by the change in pressure during capture. This condition appears to be species specific at the macroscopic level; however, little is known about the microscopic tissue-level effects of barotrauma. Determining whether tissue-level injuries are...
Filled skutterudites are promising thermoelectric materials due to reduced thermal
conductivity upon inserting a guest atom or 'rattler' into the CoSb₃ structure. By using an
indium rattler dimensionless Figure of Merit (ZT) values > 1 at 650 K have been reported.
The conventional synthesis of these compounds typically takes several...
A replicated before–after-control-impact study was used to test effectiveness of Oregon’s (USA) riparian
protection measures at minimizing increases in summer stream temperature associated with timber harvest.
Sites were located on private and state forest land. Practices on private forests require riparian management
areas around fish-bearing streams; state forest’s prescriptions are...
The effect of quasi-hydrostatic pressure upon the ferromagnetic ground state of magnetodielectric, double-
perovskite La₂ MnNiO₆ is investigated using x-ray absorption spectroscopy and diffraction measurements in a
diamond anvil cell. The Mn-O-Ni superexchange interaction that gives rise to ferromagnetism in this cation-
ordered structure is stable to at least 38...
Oregon’s forested coastal watersheds support important cold-water fisheries of salmon
and steelhead (Oncorhynchus spp.) as well as forestry-dependent local economies. Riparian
timber harvest restrictions in Oregon and elsewhere are designed to protect stream habitat
characteristics while enabling upland timber harvest. We present an assessment of riparian
leave tree rule effectiveness...
Wetland‐estuarine‐shelf interaction processes in the Plum Island Sound and Merrimack River system in the Massachusetts coast are examined using the high‐resolution
unstructured grid, finite volume, primitive equations, coastal ocean model. The
computational domain covers the estuarine and entire intertidal area with a horizontal
resolution of 10–200 m. Driven by five...
Comprehensive observations of velocity, density, and
turbulent dissipation permit quantification of the nonlinear
internal wave (NLIW) contribution to vertical heat flux and
lateral mass transport over New Jersey’s shelf. The effect of
NLIWs on the shelf heat budget was significant. On
average, heat flux in NLIWs was 10 times larger...
Three‐dimensional circulation in the coastal transition zone (CTZ) off Oregon is
studied using a 3 km resolution model based on the Regional Ocean Modeling System.
The study period is spring and summer 2002, when extensive observations were available
from the northeastern Pacific component of the Global Ocean Ecosystems Dynamics
project....
The tidally varying circulation, stratification, and salt flux mechanisms are
investigated in a shallow salt wedge estuary where fluvial and tidal velocities are large and
the steady baroclinic circulation is comparatively weak. The study integrates field
observations and numerical simulations of the Merrimack River estuary. At moderate to
high discharge...
In this paper, measurements of high-frequency
broadband (160–590 kHz) acoustic backscattering from surface
trapped nonlinear internal waves of depression are presented.
These waves are ideal for assessing the contribution from oceanic
microstructure to scattering as they are intensely turbulent.
Almost coincident direct microstructure measurements were performed
and zooplankton community structure...
The value proposition of academic library consortia often focuses on the
benefits a member library expects to receive in return for its paid membership in a
consortium. This article takes a look at the literature of library and information science
as well as the websites of 45 academic library consortia...