At a time when environmental conditions are rapidly changing, understanding how thermal extremes impact wildlife is imperative to fully understanding the consequences of climate change in natural ecosystems. While many organisms are currently impacted by rapidly warming and more erratic environmental conditions, identifying and investigating model species whose life histories...
The lens dose equivalent (LDE) is a regulatory limit set to protect radiation workers. Current methods for estimating the LDE are specific to beam sources in a vacuum and require interpolating data from tables. A new set of deterministic equations for photon and electron point sources has been developed. These...
The nursing profession has long sought more diversity in registered nurses (RNs) to reflect the populations served. One way to enhance RN diversity is through diversity in community college (CC) associate degree in nursing (ADN) programs.
Since ADN programs lead to professional employment with middle-class wages, they form an important...
The use of radioactive isotopes as tracers in biological systems
has become widespread since the close of World War II. Proper
use of radiotracers requires a fundamental understanding of the physical
nature of radioactivity, the characteristics of ionizing radiation,
and the various methods available for measuring radioactivity.
More importantly, the...
Descriptions and distributions are given of 28 species of
Liparidae occurring or possibly occurring below 200 m between San
Francisco and northern Vancouver Island, with keys for their identifications.
Nine genera are included: Careproctus, Elassodiscus,
Lipariscus, Nectoliparis, Rhinoliparis, Acantholiparis, Paraliparis,
and two new genera are described, Odontoliparis and Osteodiscus.
Eight...
Field, growth chamber, and greenhouse studies were carried
out to evaluate factors that cause low seed set in Dactylis Glomerata
L. The variety, 'Latar', and the parental clones of the variety,
'Pennlate', were studied in detail.
Floral anatomy investigations indicated that 98 percent of
Dactylis flowers opened at Corvallis in...
Differential equations governing the combined heat and mass
transfer in soils are developed. Transient heat, liquid and vapor
transfer with phase change is considered. The liquid transfer is
treated as a function of the hydraulic conductivity and the gradient of
suction potential. The suction potential is considered a function of...
Triphenylmethyl dye cyanides have been known to be sensitive to ultraviolet radiation since early in this century. Under appropriate conditions, exposure to uv leads to heteropolar fission of the C-CN bond (photoionization) and intense coloration due to dye formation. Thin homogeneous films of hexahydroxyethyl pararosaniline cyanide in a nylon matrix...
The effects of aspect, canopy, elevation, and season both singly
and in combination on soil temperatures at 50 cm depths were
evaluated.
The objectives of the study were (i) to develop a standard procedure
for obtaining soil temperature data adequate to classify soils
at the family and great group levels,...
Sea level and current observations made over the Oregon
continental shelf exhibit wavelike characteristics in a frequency band
from approximately 0.15 to 0.45 cpd. In a narrow band around
0.22 cpd the current-sea level relationship is consistent with the
predicted values for the first mode of Robinson's continental shelf
waves....
Temperate climates are particularly conducive to
growth of annual bluegrass which readily invades and
dominates most cool-season turfgrasses. Ethofumesate
(2-ethoxy-2,3-dihydro-3,3-dimethyl-5-benzofuranyl
methanesulfonate) is one herbicide available which will
selectively control annual bluegrass.
The primary objectives of this research were to
determine optimum application rates and timing of
ethofumesate for control of...
Forest managers are challenged to provide timber revenues and other resources for society while protecting and enhancing components of biodiversity that are often associated with older forests or older forest structure, such as dead wood. We examined small mammal response to timber harvest in stands 8-10 years following group-selection, two-story,...
A collection of short stories in the style of flash fiction. The themes of the stories include relationships, legality, and friendship. The stories are connect by themes, cross self-referencing, repetition, fragmentation, and characters. The main unifying feature is the characterization of the narrator through his response and commentary. The styles...
L-pipecolic acid (L-PA) is the higher homolog of proline. It occurs naturally in
many organisms, including primates, as an intermediate in lysine degradation. The
pathway by which lysine is converted into L-pipecolic acid employs the enzyme Lpipecolate
oxidase (L-PO), and appears to be tissue specific to the central nervous system...
Management of habitat for bats requires sound information on their habitat requirements. I used radio telemetry to identify 80 roosts for 24 long-eared myotis (Myotis evotis); 74 roosts were identified for 21 females and 6 roosts for 3 males.
Females primarily used dead and defective conifer trees (n=22) and conifer...
Noble fir (Abies procera Rehd.), an important conifer in the Pacific Northwest, is valuable for timber, Christmas trees, and greenery products. A number of tree improvement programs emphasizing genetic improvement of bole volume growth are underway in this species. The purpose of this study was to estimate genetic control of...
Dimensional characteristics of 44 beaver dams and ponds on Kuiu Island in Southeast Alaska were determined to evaluate the hydrologic effects of these structures on peak flows. The study area consisted of low gradient, incised streams in broad U-shaped valleys. Pond routing simulations were conducted using four return intervals (2-,...
The EPA’s Western Ecology Division (WED) had been accumulating geographic information system (GIS) data files for up to 20 years. There was no index or catalog for these files; locating data became more difficult over time. More that 4 Tb of data existed on numerous disk volumes in hundreds of...
Field trials were conducted during 2001 to 2003 to investigate soil population dynamics of Meloidogyne chitwoodi, tuber symptom suppression using oxamyl, and post-harvest tuber symptom development on short-season potato varieties Russet Norkotah and Russet Nugget (San Luis Valley only). The experiments were located in the San Luis Valley in Colorado,...
Climate warming is projected to affect forest water yields but the effects are expected to vary. We investigated how forest
type and age affect water yield resilience to climate warming. To answer this question, we examined the variability in historical
water yields at long-term experimental catchments across Canada and the...
Climate warming is projected to affect forest water yields but the effects are expected to vary. We investigated how forest
type and age affect water yield resilience to climate warming. To answer this question, we examined the variability in historical
water yields at long-term experimental catchments across Canada and the...
Climate warming is projected to affect forest water yields but the effects are expected to vary. We investigated how forest type and age affect water yield resilience to climate warming. To answer this question, we examined the variability in historical water yields at long‐term experimental catchments across Canada and the...
Stable oxygen and carbon isotope δ[superscript 18]O and δ[superscript 13]C analyses of otoliths are becoming increasingly common in fisheries science and management. However, little is known about the statistical properties of isotopic data and few attempts have been made to explore appropriate statistical methods that could be used for otolith...
Equations for predicting tree height as a function of diameter outside bark at
breast height are presented for various tree species common to southwest
Oregon. Data for damaged and undamaged trees were analyzed with weighted
nonlinear regression techniques. The effects of specific damaging agents and
their severity on the height-diameter...
Three equations for predicting tree height as a function of diameter (outside
bark) at breast height are presented for six species found in coastal regions of
the Pacific Northwest. Foresters can use these “height–diameter” equations
to avoid the time-consuming task of measuring heights of all individual trees
in an inventory,...
The forebody wake effect (FWE) is important to consider when designing parachute systems because it can affect parachute performance. Parachutes work by altering the aerodynamic properties of an attached forebody to control a descent. The FWE can reduce parachute drag, causing the system to descend faster than desired. This drag...
This paper examines the sources of uncertainty for the Forced Diffusion (FD) chamber soil
respiration (R[subscript s]) measurement technique and demonstrates a protocol for uncertainty quantification that
could be appropriate with any soil flux technique. Here we sought to quantify and compare the three primary
sources of uncertainty in R[subscript...
This paper examines the sources of uncertainty for the Forced Diffusion (FD) chamber soil
respiration (R[subscript s]) measurement technique and demonstrates a protocol for uncertainty quantification that
could be appropriate with any soil flux technique. Here we sought to quantify and compare the three primary
sources of uncertainty in R[subscript...
Full Text:
Lavoie, Claire Phillips, David Risk
Department of Earth Sciences, St. Francis Xavier University, P.O
This paper examines the sources of uncertainty for the Forced Diffusion (FD) chamber soil
respiration (R[subscript s]) measurement technique and demonstrates a protocol for uncertainty quantification that
could be appropriate with any soil flux technique. Here we sought to quantify and compare the three primary
sources of uncertainty in R[subscript...
Full Text:
respiration using Forced
Diffusion chambers
Martin Lavoie1, C. L. Phillips2, and David Risk1
1Department of
Fertigation with liquid sources of nitrogen (N) fertilizers, including ammonium sulfate and urea, were compared with granular applications of the fertilizers in northern highbush blueberry (Vaccinium corymbosum L. ‘Bluecrop’) during the first 5 years of fruit production (2008–12). The planting was established in Apr. 2006 at a field site located...
This paper examines the sources of uncertainty for the Forced Diffusion (FD) chamber soil respiration (Rs) measurement technique and demonstrates a protocol for uncertainty quantification that could be appropriate with any soil flux technique. Here we sought to quantify and compare the three primary sources of uncertainty in Rs: (1)...
The Strategic Agenda for Research Data Services will guide the development of data services at OSU Libraries from January 2013 to June 2014. The Strategic Agenda is informed by best practices in data management at peer universities. Major elements of the Strategic Agenda include an instructional program on data management,...
Cyanobacteria inhabit nearly every ecosystem on earth, play a vital role in nutrient cycling, and are
useful as model organisms for fundamental research in photosynthesis and carbon and nitrogen fixation.
In addition, they are important for several established biotechnologies for producing food additives,
nutritional and pharmaceutical compounds, and pigments, as...
Two nonspatial approaches for modeling tree crown recession (ΔHCB) were evaluated by using 5341 observations from Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco). The first approach applies a static height-to-crown-base (HCB) equation at the start and end of the growth period and uses the difference in these predictions as an estimate of...
The relative contribution of various inorganic and organic forms of nitrogen to the nitrogen requirements of picoplankton was examined with 15N tracers. Size fractionation was used to measure uptake by <1-μM size microorganisms, and inhibitors of protein synthesis were used to separate procaryotic from eucaryotic nitrogen uptake, Picoplankton utilized mainly...
A trophic model that simulates interactions between
a predatory fish (Pacific hake, Merluccius productus), forage
fish, and juvenile salmon off the Columbia River
was constructed to identify if trophic interactions could
account for marine mortality of Columbia River juvenile
salmon. The model estimates the number of juvenile
salmon that are...
The Pacific lamprey (Entosphenus tridentatus) is in decline in the Columbia River Basin, and translocating adult lamprey to bypass difficult migration corridors has been implemented since 2000. We describe and report results from two current translocation programs, provide context for use of translocation, and discuss potential benefits, risks, and uncertainties....
We used simulated magnetic displacements to test orientation preferences of
juvenile steelhead trout (Oncorhynchus mykiss) exposed to magnetic fields
existing at the northernmost and southernmost boundaries of their oceanic
range. Fish reared in natural magnetic conditions distinguished between
these two fields by orienting in opposite directions, with headings that
would...
Full Text:
Sheet1
Nathan F. Putman, Amanda M. Meinke, and DavidL. G. Noakes
Rearing
We used simulated magnetic displacements to test orientation preferences of
juvenile steelhead trout (Oncorhynchus mykiss) exposed to magnetic fields
existing at the northernmost and southernmost boundaries of their oceanic
range. Fish reared in natural magnetic conditions distinguished between
these two fields by orienting in opposite directions, with headings that
would...
Full Text:
. Meinke3 and DavidL. G. Noakes1,3
1Department of Fisheries and Wildlife, Oregon State University
The City of Newport (City) plans to develop a tsunami evacuation site to serve the
South Beach area. The proposed site consists of an undeveloped hill located
adjacent to Highway 101, southwest of the Yaquina Bay Bridge (Figure 1A,
Appendix A). The site will be designated Safe Haven Hill. This...
Full Text:
, estimated costs or
schedule.
Sincerely,
FOUNDATION ENGINEERING, INC.
DavidL. Running, P.E., G.E
The City of Newport (City) plans to develop a tsunami evacuation site to serve the
South Beach area. The proposed site consists of an undeveloped hill located
adjacent to Highway 101, southwest of the Yaquina Bay Bridge (Figure 1A,
Appendix A). The site will be designated Safe Haven Hill. This...
Full Text:
assistance.
Sincerely,
FOUNDATION ENGINEERING, INC.
DavidL. Running, P.E., G.E. James K