2,482 research outputs found
CONSIM: a converstional simulation language implemented through interpretive control self-modeling
Journal ArticleThis paper describes an implementation technique termed interpretive control self-modeling (ICSM) and outlines its application in the implementation of CONSIM, a prototype conversational simulation language. ICSM may be defined as the use of a higher-level programming language (HLL) to specify its own control organization through an interpreter administering each control event in a 'reflexive" fashion. That is, recursion in the subject program is implemented via recursion in the interpreter, coroutines via coroutines, etc. Thus the run-time control state of the interpreter evolves in a manner directly paralleling that evolving in the subject program
Educator and Preceptor Roles in Athletic Training Student Development
Context: Healthcare professions use a unique learning pattern in which they are educated both didactically and clinically. Previous research has focused on preceptor selection and training, but there has been limited emphasis on perceived roles of didactic and clinical educators. Identifying potential discrepancies in perceived roles may help improve athletic training student education through a shared understanding of role delineation.
Objective: To understand the perceived roles of academic faculty and clinical preceptors regarding athletic training student development.
Design: Consensual qualitative research.
Setting: Webex Focus Group Interviews.
Patient or other Participants: 8 faculty, 7 preceptors, and 7 dual role educator/preceptor representing professional programs participated in this study. Data saturation guided the number of focus groups conducted.
Data Collection and Data Analysis: Semi-structured focus group interviews were conducted and transcribed verbatim. Four researchers used a consensus process to analyze data, identify emergent themes, and create a codebook independently. Once completed, a consensual codebook was created with all identified themes and subgroups. Credibility was established by use of an external auditor to finalize the codebook.
Results: Three themes emerged from the data: (1) Contributors to Role Achievement, (2) Challenges to Role Achievement, and (3) Perceived Improvements. Factors that contributed to role achievement included positive relationships, effective communication, role development,https://digitalcommons.odu.edu/gradposters2020_healthsciences/1002/thumbnail.jp
EFFECTS OF HERBICIDES AND GRAZING ON FLORISTIC QUALITY OF NATIVE TALLGRASS PASTURES IN EASTERN SOUTH DAKOTA AND SOUTHWESTERN MINNESOTA
Historic herbicide use and grazing have influenced natural diversity and quality of native pasturelands in the Great Plains. Floristic quality assessments are useful to assist agencies in prioritizing conservation practices to enhance native grasslands. The objective of this study was to determine the effects of past land-use practices on the floristic quality of remnant native pastures in eastern South Dakota and southwestern Minnesota. Floristic quality assessments were conducted on 30 native pastures and categorized by past management practices (herbicide application and grazing intensity). Mean coefficient of conservatism (C) and floristic quality index (FQI) were calculated for each site~Results showed that increased herbicide use and grazing intensity resulted in a lower species richness, forb C ,and FQI. However, grass and grasslike plants were minimally affected. Pastures that were infrequently sprayed with herbicides and lightly grazed consistently had the highest species richness, C ,and FQI. Pastures with no grazing produced similar values to those with moderate grazing. Pastures managed as preserves or wildlife habitat areas had higher FQI than those managed for livestock grazing. The implications of this study should further help ecologists and managers understand the positive and negative effects of grazing practices and herbicide application on tallgrass prairie remnants
EFFECTS OF HERBICIDES AND GRAZING ON FLORISTIC QUALITY OF NATIVE TALLGRASS PASTURES IN EASTERN SOUTH DAKOTA AND SOUTHWESTERN MINNESOTA
Historic herbicide use and grazing have influenced natural diversity and quality of native pasturelands in the Great Plains. Floristic quality assessments are useful to assist agencies in prioritizing conservation practices to enhance native grasslands. The objective of this study was to determine the effects of past land-use practices on the floristic quality of remnant native pastures in eastern South Dakota and southwestern Minnesota. Floristic quality assessments were conducted on 30 native pastures and categorized by past management practices (herbicide application and grazing intensity). Mean coefficient of conservatism (C) and floristic quality index (FQI) were calculated for each site~Results showed that increased herbicide use and grazing intensity resulted in a lower species richness, forb C ,and FQI. However, grass and grasslike plants were minimally affected. Pastures that were infrequently sprayed with herbicides and lightly grazed consistently had the highest species richness, C ,and FQI. Pastures with no grazing produced similar values to those with moderate grazing. Pastures managed as preserves or wildlife habitat areas had higher FQI than those managed for livestock grazing. The implications of this study should further help ecologists and managers understand the positive and negative effects of grazing practices and herbicide application on tallgrass prairie remnants
Measurement of Electron-phonon Interactions Through Large-amplitude Phonon Excitation
Contains an introduction and report on one research project.Joint Services Electronics Program Contract DAALO3-89-C-000
CELT site testing program
The California Extremely Large Telescope, CELT, is a proposed 30-m telescope. Choosing the best possible site for CELT is essential in order to extract the best science from the observations and to reduce the complexity of the telescope. Site selection is therefore currently one of the most critical pacing items of the CELT project. In this paper, we first present selected results from a survey of the atmospheric transparency at optical and infrared wavelengths over the southwestern USA and northern Mexico using satellite data. Results of a similar study of South America have been reported elsewhere. These studies will serve as the pre-selection criterion of the sites at which we will perform on-site testing. We then describe the current status of on-site turbulence evaluation efforts and the future plans of the CELT site testing program
Use of non-natal estuaries by migratory striped bass (Morone saxatilis) in summer
This paper is not subject to U.S. copyright. The definitive version was published in Fishery Bulletin 107 (2009): 329-338.For most migratory fish,
little is known about the location
and size of foraging areas or how
long individuals remain in foraging
areas, even though these attributes
may affect their growth, survival,
and impact on local prey. We tested
whether striped bass (Morone saxatilis
Walbaum), found in Massachusetts in
summer, were migratory, how long
they stayed in non-natal estuaries,
whether observed spatial patterns
differed from random model predictions,
whether fish returned to the
same area across multiple years, and
whether fishing effort could explain
recapture patterns. Anchor tags were
attached to striped bass that were
caught and released in Massachusetts
in 1999 and 2000, and recaptured
between 1999 and 2007. In
fall, tagged striped bass were caught
south of where they were released in
summer, confirming that fish were
coastal migrants. In the first summer,
77% and 100% of the recaptured fish
in the Great Marsh and along the
Massachusetts coast, respectively,
were caught in the same place where
they were released. About two thirds
of all fish recaptured near where they
were released were caught 2–7 years
after tagging. Our study shows that
smaller (400–500 mm total length)
striped bass migrate hundreds of
kilometers along the Atlantic Ocean
coast, cease their mobile lifestyle in
summer when they use a relatively
localized area for foraging (<20 km2),
and return to these same foraging
areas in subsequent years.This project was administered through the Massachusetts
Cooperative Fish and Wildlife Research Unit. The
Massachusetts Cooperative Fish and Wildlife Research
Unit is an association among the U.S. Geological Survey;
University of Massachusetts Department of Natural
Resources Conservation; Massachusetts Division of
Marine Fisheries; Massachusetts Division of Fisheries
and Wildlife, and the Wildlife Management Institute
Chapter 3 Wetland Design and Development
The history of efforts to design and develop wetland sites is extensive and rich, especially in the United States. This chapter provides an annotated view of the current state of wetland design and recommends an approach to future efforts using “Hydrogeomorphic Methodology.” Experience over the past century indicates that the most important part of wetland design and development is upfront work to: (1) determine what type of wetland historically occurred in, and is appropriate for a site; (2) understand and attempt to emulate the key ecological processes that created and sustained specific wetland types; (3) compare historical landscapes and wetland attributes with contemporary landscape and site conditions to understand remediating needs; and (4) determine management objectives and capabilities. The foundation for hydrogeomorphic assessments is analysis of historical and current information about geology and geomorphology, soils, topography and elevation, hydrological regimes, plant and animal communities, and physical anthropogenic features. The availability of this information is discussed and the sequence of actions used to prepare hydrogeomorphic matrices of potential historical vegetation communities and maps is provided as in application of information. Specific considerations for designing wetland infrastructure and restoring wetland vegetation are reviewed. An example of a wetland restoration project for the Duck Creek Conservation Area, Missouri is provided to demonstrate use of the hydrogeomorphic approach. We believe that future wetland design and development strategies should include the following actions: (1) wetland conservation must seek to achieve incremental gains at landscape-level scales; (2) the foundation of wetland design is determining the appropriate wetland type for the site being considered; (3) wetland designs should seek to restore and emulate historical form and process as completely as possible and to make systems as self-sustainable as possible; and (4) future design and development of wetlands must anticipate change related to climate, land uses, encroachments, and water availability and rights
Chapter 3 Wetland Design and Development
The history of efforts to design and develop wetland sites is extensive and rich, especially in the United States. This chapter provides an annotated view of the current state of wetland design and recommends an approach to future efforts using “Hydrogeomorphic Methodology.” Experience over the past century indicates that the most important part of wetland design and development is upfront work to: (1) determine what type of wetland historically occurred in, and is appropriate for a site; (2) understand and attempt to emulate the key ecological processes that created and sustained specific wetland types; (3) compare historical landscapes and wetland attributes with contemporary landscape and site conditions to understand remediating needs; and (4) determine management objectives and capabilities. The foundation for hydrogeomorphic assessments is analysis of historical and current information about geology and geomorphology, soils, topography and elevation, hydrological regimes, plant and animal communities, and physical anthropogenic features. The availability of this information is discussed and the sequence of actions used to prepare hydrogeomorphic matrices of potential historical vegetation communities and maps is provided as in application of information. Specific considerations for designing wetland infrastructure and restoring wetland vegetation are reviewed. An example of a wetland restoration project for the Duck Creek Conservation Area, Missouri is provided to demonstrate use of the hydrogeomorphic approach. We believe that future wetland design and development strategies should include the following actions: (1) wetland conservation must seek to achieve incremental gains at landscape-level scales; (2) the foundation of wetland design is determining the appropriate wetland type for the site being considered; (3) wetland designs should seek to restore and emulate historical form and process as completely as possible and to make systems as self-sustainable as possible; and (4) future design and development of wetlands must anticipate change related to climate, land uses, encroachments, and water availability and rights
Cultural and economic complementarities of spatial agglomeration in the British television broadcasting industry: Some explorations.
This paper considers the processes supporting agglomeration in the British television broadcasting industry. It compares and contrasts the insights offered by the cultural turn in geography and more conventionally economic approaches. It finds that culture and institutions are fundamental to the constitution of production and exchange relationships and also that they solve fundamental economic problems of coordinating resources under conditions of uncertainty and limited information. Processes at a range of spatial scales are important, from highly local to global, and conventional economics casts some light on which firms are most active and successful
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