1,497 research outputs found
An Analysis of the Shore Beetle Communities of Some Channelized Streams in Northwest Ohio (Coleoptera)
The present shore beetle communities of some northwest Ohio streams channelized between 1937 and 1973 were studied. Quantitative and qualitative analyses were made to determine the effects of channelization on the community and the results are discussed. Ninety species, chiefly Carabidae, Heteroceridae and Staphylinidae, were collected; at least 20 not previously reported from Ohio. In addition, some species associations are noted
Use of pop-up satellite archival tag technology to study postrelease survival of and habitat use by estuarine and coastal fishes: an application to striped bass (Morone saxatilis)
Pop-up satellite archival tags (PSATs) have been used to
study movements, habitat use, and postrelease survival of large pelagic vertebrates, but the size of these tags has historically precluded their use on smaller coastal species. To evaluate a new generation of smaller PSATs for the study of postrelease survival and habitat use of coastal species, we attached Microwave Telemetry, Inc.,
X-tags to ten striped bass (Morone saxatilis) 94–112 cm total length (TL) caught on J hooks and circle hooks during the winter recreational fishery in Virginia. Tags collected temperature and depth information every five minutes and detached from the fish after 30 days. Nine of the ten tags
released on schedule and eight transmitted 30% to 96% (mean 78.6%) of the archived data. Three tags were physically recovered during or after the transmission period, allowing
retrieval of all archived data. All eight striped bass whose tags transmitted data survived for 30 days after
release, including two fish that were hooked deeply with J hooks. The eight fish spent more than 90% of their time at depths less than 10 m and in temperatures of 6–9°C, demonstrated no significant diel differences in depth
or temperature utilization (P>0.05), and exhibited weak periodicities in vertical movements consistent with daily and tidal cycles
A brief history of long memory: Hurst, Mandelbrot and the road to ARFIMA
Long memory plays an important role in many fields by determining the
behaviour and predictability of systems; for instance, climate, hydrology,
finance, networks and DNA sequencing. In particular, it is important to test if
a process is exhibiting long memory since that impacts the accuracy and
confidence with which one may predict future events on the basis of a small
amount of historical data. A major force in the development and study of long
memory was the late Benoit B. Mandelbrot. Here we discuss the original
motivation of the development of long memory and Mandelbrot's influence on this
fascinating field. We will also elucidate the sometimes contrasting approaches
to long memory in different scientific communitiesComment: 40 page
Impleme[n]tation of the marketing concept : an organizational learning perspective
This dissertation develops a model of implementation of the marketing concept using an organizational learning perspective. This perspective suggests that implementation of the marketing requirement implies that organizations adopt a set of shared beliefs and engage in market information processing activities that reflect the marketing concept. A set of eight hypotheses were developed to explore the relationship between marketing concept belief and market information processing activities. Data were collected from staff at Anglophone, acute-care hospitals in Canada. Forty-six hospitals were included in the final sample with an average of 14 members of each hospital providing data. Data were collected on the following variables: marketing concept beliefs, market information processing, effectiveness orientation, strategic orientation, organization flux, market complexity, market dynamism, and market performance. In general, the hypotheses received little support. Although a number of potential explanations are raised, perhaps the most interesting is the possibility that the measure of marketing concept beliefs was in fact measuring paternalism. Finally, directions for future research are suggested
Plans for TB Testing Policy Announced by Dr. Graves
Tuberculin testing will be done on all students who plan to return next fall, at the same time I.D. card photographs are taken at Wingate Hall during the weeks of May 7th and May 14th. This is in an attempt to minimize the risk of tuberculosis among the student population
Modeling path effects in three-dimensional basin structures
Path effects for seismic wave propagation within three-dimensional (3-D) basin structures are analyzed using a reciprocal source experiment. In this experiment, a numerical simulation is performed in which a point source is excited at a given location and then the wave field is propagated and recorded throughout a 3-D grid of points. Using the principle of reciprocity, source and receiver locations are reversed. This allows the modeling of path effects into a particular observation site for all possible source locations using only one simulation. The numerical technique is based on the use of paraxial extrapolators and currently tracks only acoustic waves. However, the method is capable of handling arbitrary media variations; thus, effects due to focusing, diffraction, and the generation of multiple reflections and refractions are modeled quite well.
The application of this technique to model path effects for local earthquakes recorded at stations in the Los Angeles area of southern California indicates the strong influence of the 3-D crustal basins of this region on the propagation of seismic energy. The modeling results show that the Los Angeles, San Fernando, and San Gabriel basins create strong patterns of focusing and defocusing for paths into these stations from various source locations. These simulations correlate well with earthquake data recorded at both stations. By comparing these calculations with earthquake data, we can begin to evaluate the importance of these basin effects on observed patterns of strong ground motions
Amenities and the labor earnings function
I was unable to copy/paste the abstract, but the paper argues that amenities exert an important effect on wage differentials over space. Indeed, we show that as much has half of the apparent effect of unionization on wages is actually compensation for less desirable climate in locations that are most unionized.amenities; climate; weather; wage compensation; return to unionization
Managing the Acquisition of E-resources
Have you ever discovered an e-resource in your catalogue which was purchased months ago but still does not have a link for access? Have you received questions from requesting librarians about when they can expect access? Does it sometimes feel like requests for new products have fallen into a black hole? This session will describe how Western Libraries modified the CORAL software (developed by Notre Dame University Library) to smooth out our workflow and ensure that resources are requested, received and linked in a timely manner.
The session will include a description of how the workflow operates by alerting the correct staff member that an action is required. The session will describe how feedback was received from subject selectors and how the form went through several modifications to better meet the needs of our institution.
Although the software was originally adapted specifically for electronic resource acquisition, it has been expanded to include all resource requests in any format so that all requests come through one form. The session will be of interest to Librarians and Managers who have a role in the acquisition of material
Buckwheat: A Minor Crop in South Dakota
Buckwheat is primarily an emergency crop in South Dakota; however, buckwheat is considered a full-sea¬son crop in Minnesota, North Dakota, and Manitoba. Buckwheat probably originated in China. It was first introduced to the United States by Dutch colonists in the Hudson River Valley in the early 1600s
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