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Physical Sciences and Mathematics Commons™
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- Population (2)
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- Size-structure (2)
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- APPLIED RESEARCH (1)
- Alosa chrysochloris (1)
- Ammocrypta clara (1)
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Articles 1 - 22 of 22
Full-Text Articles in Physical Sciences and Mathematics
Minerva 2008, The Honors College
Minerva 2008, The Honors College
Minerva
This issue of Minerva includes an article on the completion of the restoration of Colvin Hall; a reflection by Ruth Nadelhaft, former UMaine Honors program director; and an article on Honors alumnus and Nobel Peace Prize winner Bernard Lown and his 2008 Rezendes Visiting Scholar in Ethics Lecture/Distinguished Honors Graduate Lecture.
Remarks On The Stability Of Some Size-Structured Population Models Iii: The Case Of Constant Inflow Of Newborns, Mohammed El-Doma
Remarks On The Stability Of Some Size-Structured Population Models Iii: The Case Of Constant Inflow Of Newborns, Mohammed El-Doma
Applications and Applied Mathematics: An International Journal (AAM)
The stability of some size-structured population dynamics models are investigated. We determine the steady states and study their stability. We also give examples that illustrate the stability results. The results in this paper generalize previous results, for example, see Calsina, et al. (2003), El- Doma (2006) and El-Doma (2008).
Neural Network Models For Solving The Maximum Flow Problem, S. Effati, M. Ranjbar
Neural Network Models For Solving The Maximum Flow Problem, S. Effati, M. Ranjbar
Applications and Applied Mathematics: An International Journal (AAM)
In this paper, two new neural network models for solving the maximum flow problem are presented. The maximum flow problem in networks is formulated as a special type of linear programming problem and it is solved by appropriately defined neural networks. The nonlinear neural networks are able to generate optimal solution for maximum flow problem. We solve neural network models by one of the numerical method. Finally, some numerical examples are provided for the sake of illustration.
Remarks On The Stability Of Some Size-Structured Population Models Ii: Changes In Vital Rates Due To Size And Population Size, Mohammed El-Doma
Remarks On The Stability Of Some Size-Structured Population Models Ii: Changes In Vital Rates Due To Size And Population Size, Mohammed El-Doma
Applications and Applied Mathematics: An International Journal (AAM)
The stability of some size-structured population dynamics models are investigated. We determine the steady states and study their stability. We also give examples that illustrate the stability results. The results in this paper generalize previous results, for example, see Calsina, et al. (2003) and El-Doma (2006).
A Call For A Statewide Bioinformatics Institute, John R. Rose
A Call For A Statewide Bioinformatics Institute, John R. Rose
Journal of the South Carolina Academy of Science
No abstract provided.
Sc Inbre: A Catalyst For Biomedical Research Development In South Carolina, Lucia A. Pirisi-Creek M.D, Scott Little, Ph.D.
Sc Inbre: A Catalyst For Biomedical Research Development In South Carolina, Lucia A. Pirisi-Creek M.D, Scott Little, Ph.D.
Journal of the South Carolina Academy of Science
No abstract provided.
Inflammation: The Key To Health And Disease, Prakash Nagarkatti Ph. D, Donald J. Dipette M. D.
Inflammation: The Key To Health And Disease, Prakash Nagarkatti Ph. D, Donald J. Dipette M. D.
Journal of the South Carolina Academy of Science
No abstract provided.
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Using Landscape History And Baseline Data In The Restoration Of A Midwestern Savanna, Andrew P. Rayburn, Annabel L. Major
Using Landscape History And Baseline Data In The Restoration Of A Midwestern Savanna, Andrew P. Rayburn, Annabel L. Major
Journal of the Iowa Academy of Science: JIAS
Over one hundred and fifty years of Euro-American settlement has dramatically altered Midwestern landscapes, resulting in the widespread conversion of native habitat. Numerous opportunities to conduct ecological restoration exist within the Midwest, with the potential to increase habitat and landscape heterogeneity, secure critical ecosystem services, and provide opportunities for research and education. Site history is an important consideration for most restoration projects, and multiple sources of historical data may be required to unravel the complicated history of intensively used Midwestern landscapes. The collection of baseline data is another significant component of most restoration projects, allowing for an evaluation of community …
Pre-Settlement Vegetation At Casey's Paha State Preserve, Iowa, Reid J. Leichty, Steven H. Emerman, Lyndon R. Hawkins, Michael J. Tiano
Pre-Settlement Vegetation At Casey's Paha State Preserve, Iowa, Reid J. Leichty, Steven H. Emerman, Lyndon R. Hawkins, Michael J. Tiano
Journal of the Iowa Academy of Science: JIAS
Paha are loess-capped ridges standing 10-30 m above the surrounding plain of the Iowan Surface. Although Iowa was almost entirely covered with prairie and wetlands just prior to Euro-American settlement, the paha are believed to have been forested based on soil types and on early vegetation maps. The objective of this study was to find evidence that paha were forested by measuring the δ13C value of humin, the fraction of soil organic matter that is insoluble in acid and base. Previous work has shown that humin retains the δ13C signature of vegetation on a 1000-year time scale, as opposed to …
Assessment Of Smallmouth Bass Populations In Iowa Interior Rivers, Andrew C. Jansen, Michael C. Quist, Jeff Kopaska
Assessment Of Smallmouth Bass Populations In Iowa Interior Rivers, Andrew C. Jansen, Michael C. Quist, Jeff Kopaska
Journal of the Iowa Academy of Science: JIAS
Smallmouth bass Micropterus dolomieu are a popular sport fish throughout North America and occupy an important ecological role as top predators in aquatic systems. Despite the importance of smallmouth bass, knowledge of their population structure and dynamics in Iowa interior rivers is limited. The objective of this study was to describe population dynamics (e.g., relative abundance, size and age structure, growth, mortality) of smallmouth bass in six Iowa rivers. Smallmouth bass were sampled from the Upper Iowa, Maquoketa, and Wapsipinicon rivers in northeast Iowa and the Des Moines, Iowa, and South Skunk rivers in central Iowa using electrofishing during the …
Observations On The Distribution And Status Of Western Sand Darter, Spotted Gar, And Skipjack Herring In Iowa Rivers, Travis E. Neebling, Michael C. Quist
Observations On The Distribution And Status Of Western Sand Darter, Spotted Gar, And Skipjack Herring In Iowa Rivers, Travis E. Neebling, Michael C. Quist
Journal of the Iowa Academy of Science: JIAS
This paper describes new records of western sand darter (Ammocrypta clara), spotted gar (Lepisosteus oculatus), and skipjack herring (Alosa chrysochloris) in Iowa's interior rivers. A western sand darter was collected from the Cedar River, Benton County, in 2007. Western sand darters are occasionally collected from the upper Mississippi River (UMR), but have not been sampled in interior rivers since 1958. Two spotted gar were collected from the Des Moines River, Polk and Wapello counties, in 2007. Two spotted gar were sampled from the UMR in 2000, but no spotted gar have been previously recorded from Iowa's interior rivers. A skipjack …
Ant Diversity In Two Southern Minnesota Tallgrass Prairie Restoration Sites, Pamela M. Kittelson, Monica Paulson Priebe, Phillip J. Graeve
Ant Diversity In Two Southern Minnesota Tallgrass Prairie Restoration Sites, Pamela M. Kittelson, Monica Paulson Priebe, Phillip J. Graeve
Journal of the Iowa Academy of Science: JIAS
There is little basic information about ant species richness and abundance in tall grass prairie restorations despite the importance of ants to plant community structure and function. We compared ant abundance and richness, vascular plant cover and richness, and soil compaction at two southern Minnesota grassland restoration sites, a prairie reconstruction and a prairie remnant undergoing rehabilitation. We collected a total of 3,523 ants from 12 different species. Plant species richness ranged from 45 in the prairie reconstruction to 95 in the remnant prairie. We found five more species of ants and significantly higher mean ant species richness per plot …
Editorial Board & Iowa Academy Of Science Officers And Directors
Editorial Board & Iowa Academy Of Science Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
The Journal Of Undergraduate Research: Volume 06
The Journal Of Undergraduate Research: Volume 06
The Journal of Undergraduate Research
This is the complete issue of the South Dakota State University Journal of Undergraduate Research, Volume 6.
Editorial, First Science And Policy Issue, Jscas
Editorial, First Science And Policy Issue, Jscas
Journal of the South Carolina Academy of Science
No abstract provided.
With The Help Of South Carolina Research Universities, Scra Demonstrates Leadership In Applied Research And Commercialization Within Sc, Bill Mahoney
Journal of the South Carolina Academy of Science
No abstract provided.
Thermoelectric Applications For Imaging Infrared Focal Plane Arrays, Roy T. Littleton
Thermoelectric Applications For Imaging Infrared Focal Plane Arrays, Roy T. Littleton
Journal of the South Carolina Academy of Science
No abstract provided.
Solution Chemical Synthesis Of Nanostructured Thermoelectric Materials, Xiaohua Ji, Terry M. Tritt, Xinbing Zhao, Joe W. Kolis
Solution Chemical Synthesis Of Nanostructured Thermoelectric Materials, Xiaohua Ji, Terry M. Tritt, Xinbing Zhao, Joe W. Kolis
Journal of the South Carolina Academy of Science
No abstract provided.
Phonon Scattering Effects On Thermal Conductivity Of Tinisn-Based Half-Heusler Alloys, S. Bhattacharya, T. M. Tritt, M. J. Skove, M. Russell, S. J. Poon, V. Ponnambalam, Y. Xia, N. Thadhani
Phonon Scattering Effects On Thermal Conductivity Of Tinisn-Based Half-Heusler Alloys, S. Bhattacharya, T. M. Tritt, M. J. Skove, M. Russell, S. J. Poon, V. Ponnambalam, Y. Xia, N. Thadhani
Journal of the South Carolina Academy of Science
No abstract provided.