Social and Behavioral Sciences Commons^™

An Investigation Of Codon Usage Bias Including Visualization And Quantification In Organisms Exhibiting Multiple Biases, Douglas W. Raiford, Travis E. Doom, Dan E. Krane, Michael L. Raymer

Kno.e.sis Publications

Prokaryotic genomic sequence data provides a rich resource for bioinformatic analytic algorithms. Information can be extracted in many ways from the sequence data. One often overlooked process involves investigating an organism’s codon usage. Degeneracy in the genetic code leads to multiple codons coding for the same amino acids. Organism’s often preferentially utilize specific codons when coding for an amino acid. This biased codon usage can be a useful trait when predicting a gene’s expressivity or whether the gene originated from horizontal transfer. There can be multiple biases at play in a genome causing errors in the predictive process. For this …

A Semantic Future For Ai, Rudi Studer, Anupriya Ankolekar, Pascal Hitzler

Computer Science and Engineering Faculty Publications

In our modern information society, people need to manage ever-increasing numbers of personal devices and conduct more of their work and activities online, often making use of heterogeneous services. The amount of information to be processed by each individual is constantly growing, making it increasingly difficult to control, channel, share and make constructive use of it. To mitigate this, computing needs to become much more human-centered, e.g. by presenting personalised information to users and by respecting personal preferences in controlling multiple devices or invoking various services. Appropriate representation of the semantics of the information and functionality of devices and services …

Biphasic Alterations In Serotonin1b (5-Ht1b) Receptor Function During Abstinence From Extended Cocaine Self-Administration, Laura O'Dell

Departmental Papers (Psych)

No abstract provided.

Extended Access To Nicotine Self-Administration Leads To Dependence: Circadian Measures, Withdrawal Measures, And Extinction Behavior In Rats, Laura O'Dell

Departmental Papers (Psych)

No abstract provided.

Unlimited Access To Heroin Self-Administration: Independent Motivational Markers Of Opiate Dependence, Laura O'Dell

Departmental Papers (Psych)

No abstract provided.

The Southern Family Farm As Endangered Species: Possibilities For Survival In Barbara Kingsolver's Prodigal Summer, Suzanne W. Jones

English Faculty Publications

At the same time some southern studies scholars are positioning the U.S. South in a larger cultural, historic, and economic region that encompasses the Caribbean and Latin America, some southern environmentalist writers, such as long-time essayist and novelist Wendell Berry and activist-turned-memoirist Janisse Ray, are finding a pressing need to focus on smaller bioregions and the locatedness of the human subject. These writers believe that agribusiness and consumer ignorance are driving small farmers out of business and that clear-cutting timber and farming practices dependent on chemicals are threatening local ecosystems. Best-selling novelist Barbara Kingsolver has joined their ranks. With her …

Use Of Artificial Enclosures To Determine The Survival Of Rana Pipiens Larvae In Upper Midwestern Agricultural Ponds, Joshua M. Kapfer, Mark B. Sandheinrich, Melinda G. Knutson

Journal of the Iowa Academy of Science: JIAS

Amphibians in the upper Midwest use agricultural ponds for breeding. Unfortunately, the risks (both direct and indirect) associated with using these ponds are poorly understood in both amphibian adults and larvae. In order to quantify these risks, we performed a comparison of larval survival rates between agricultural and natural ponds in southeastern Minnesota during the spring and summer of 2001. During this time, larval survival was observed in Rana pipiens tadpoles raised through metamorphosis in enclosures placed in agricultural and natural ponds. In addition, we measured the levels of nutrients commonly linked with agricultural ponds (i.e., ammonia, total phosphorous, and …

Silicification Of Corals, Stromatoporids, And Brachiopods At The Weathered Surface Within The Devonian-Age Little Cedar Formation (Solon And Rapid Members) In Eastern Iowa, Adam L. Majeski, Paul L. Garvin

Journal of the Iowa Academy of Science: JIAS

Diagenesis of fossils contained in middle-Devonian limestones was studied at the Troy Mills and Robins quarries in Linn County, Iowa and at the Four County and Ernst quarries in Johnson County, Iowa. Fossils located at weathered bedrock surfaces were preferentially silicified, and the silicification affected corals, stromatoporids and, to a limited extent, brachiopods, but not other fossils or the host rock. The siliceous horizon extends no more than a few centimeters below the weathered surfaces, suggesting that silicification was constrained by them. Silica for silicification might have come from a variety of sources, including sponge spicules or radiolarian tests, insoluble …

Grouse News 31-40 (2006-2010), World Pheasant Association, Birdlife International, Iucn Ssc Grouse Specialist Grop

Galliformes Specialist Group and Affiliated Societies: Newsletters

Issue 31 (May 2006)

Editorial 2 From the Chair 2 Research Reports Capercaillie as a tool of forest planning and as an indicator of forest environment quality 4 A Study of Caucasian black grouse Tetrao mlokosiewiczi population dispersion confined in Iran 5 A habitat and habitat-connectivity model for capercaillie Tetrao urogallus in the Black Forest as a tool for sustainable conservation planning (a PhD project in progress) 9 Clarifying the Status of the Caucasian black grouse Tetrao mlokosiewiczi – methodical approach 11 Could competition with ungulates be a limiting factor for Cantabrian capercaillie? A new Ph.D. project 15 Current status …

Wpa News 76 (2006), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Winter 2006), number 76

Published by the World Pheasant Association

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart

Journal of the Iowa Academy of Science: JIAS

Macroinvertebrate and fish habitat is often degraded as a result of agriculture. Riparian buffer strips are commonly used to counteract the negative effects of agriculture in headwater streams. We assessed the relation of multi-aged riparian buffer strips to in-stream habitat, macroinvertebrate and fish assemblages in an Iowa stream. In-stream habitat, macroinvertebrates, and fish were sampled from two buffered sites and two unbuffered sites, with the greatest substrate, water depth, and velocity heterogeneity occurring in buffered sites. The highest macroinvertebrate richness (11) as well as fish species richness (14), diversity (1.99) and IBI score (3 7) were found in the site …

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Artists' Depictions Of Catsteps In The Loess Hills Of Iowa: Evidence For Mid-Nineteenth Century Climate Change, Kimberly R. Dillon, Steven H. Emerman, Pamela K. Wilcox

Journal of the Iowa Academy of Science: JIAS

Catsteps are the staircase-like features common on hillslopes of the Loess Hills of western Iowa. The record of artistic depictions of the Loess Hills was examined to determine when catsteps appeared. George Catlin, Karl Bodmer, and John James Audubon traveled up the Missouri River m 1832, 1833 and 1843, respectively, and between them, produced 31 works of art depicting either the Loess Hills or the loess bluffs on the Nebraska side of the river. Only three works by Bodmer of Blackbird Hill on the Nebraska side possibly show catsteps. The Assistant State Geologist, Orestes St. John, produced six sketches of …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Predicting Domain Specific Entities With Limited Background Knowledge, Christopher Thomas, Amit P. Sheth

Kno.e.sis Publications

This paper proposes a framework for automatic recognition of domain-specific entities from text, given limited background knowledge, e.g. in form of an ontology. The algorithm exploits several lightweight natural language processing techniques, such as tokenization and stemming, as well as statistical techniques, such as singular value decomposition (SVD) to suggest domain relatedness of unknown entities.

Using Query-Specific Variance Estimates To Combine Bayesian Classifiers, Chi-Hoon Lee, Russell Greiner, Shaojun Wang

Kno.e.sis Publications

Many of today's best classification results are obtained by combining the responses of a set of base classifiers to produce an answer for the query. This paper explores a novel "query specific" combination rule: After learning a set of simple belief network classifiers, we produce an answer to each query by combining their individual responses, using weights based inversely on their respective variances around their responses. These variances are based on the uncertainty of the network parameters, which in turn depend on the training datasample. In essence, this variance quantifies the base classifier's confidence of its response to this query. …

Clustering Similarity Comparison Using Density Profiles, Eric Bae, James Bailey, Guozhu Dong

Kno.e.sis Publications

The unsupervised nature of cluster analysis means that objects can be clustered in many ways, allowing different clustering algorithms to generate vastly different results. To address this, clustering comparison methods have traditionally been used to quantify the degree of similarity between alternative clusterings. However, existing techniques utilize only the point memberships to calculate the similarity, which can lead to unintuitive results. They also cannot be applied to analyze clusterings which only partially share points, which can be the case in stream clustering. In this paper we introduce a new measure named ADCO, which takes into account density profiles for each …

An Online Discriminative Approach To Background Subtraction, Li Cheng, Shaojun Wang, Terry Caelli

Kno.e.sis Publications

We present a simple, principled approach to detecting foreground objects in video sequences in real-time. Our method is based on an on-line discriminative learning technique that is able to cope with illumination changes due to discontinuous switching, or illumination drifts caused by slower processes such as varying time of the day. Starting from a discriminative learning principle, we derive a training algorithm that, for each pixel, computes a weighted linear combination of selected past observations with time-decay. We present experimental results that show the proposed approach outperforms existing methods on both synthetic sequences and real video data.

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart

Journal of the Iowa Academy of Science: JIAS

Macroinvertebrate and fish habitat is often degraded as a result of agriculture. Riparian buffer strips are commonly used to counteract the negative effects of agriculture in headwater streams. We assessed the relation of multi-aged riparian buffer strips to in-stream habitat, macroinvertebrate and fish assemblages in an Iowa stream. In-stream habitat, macroinvertebrates, and fish were sampled from two buffered sites and two unbuffered sites, with the greatest substrate, water depth, and velocity heterogeneity occurring in buffered sites. The highest macroinvertebrate richness (11) as well as fish species richness (14), diversity (1.99) and IBI score (37) were found in the site buffered …

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Letter From The Dean, Gregory J. Weidemann

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Nlm Database Central: The First Place To Look For Your Phsr Research Data, F. Douglas Scutchfield Md

Preventive Medicine and Environmental Health Presentations

No abstract provided.

Combining Linear Regression With Reconstructability Analysis: A Study Of Differences In Health Status, Renato Carletti, Martin Zwick

Complex Systems Faculty Publications and Presentations

A linear regression model was used to predict variations in health status with the hypothesis that literacy level as a proximal measure for educational attainment would show a strong correlation with health status. Groups of other independent variables have also been introduced in the model to test whether the effect of literacy on health would have been mediated by other factors, or increased by them. The linear regression model did not show any strong relation between literacy and health, but pointed to other factors as predictors of health status.

Methods of data mining have been used for exploring throughout all …

29 | Gamla I: The Pottery Of The Second Temple Period, The Shmarya Guttman Excavations, 1976–1989, Andrea M. Berlin

IAA Reports—Monograph Series of the Israel Antiquities Authority

This is the first of a series of volumes publishing the results of the excavations of the late Shmarya Gutmann at Gamla. Gamla is located on a high, precipitous rocky spur in the southern Golan Heights. It is the best preserved and most extensively excavated Jewish site of the late Second Temple period in northern Israel. Settlement came to an end in 67 CE, and the site was never resettled. This first volume presents an in-depth study of the pottery assemblages from the Hellenistic and Roman periods, which reflect all the many and varied aspects of every-day life at the …

28 | The Tel Bet Yeraḥ Excavations, 1994–1995, Nimrod Getzov

IAA Reports—Monograph Series of the Israel Antiquities Authority

This is the final report of the IAA salvage excavations at the tell during 1994–1995, which revealed occupation strata from EB I–EB III and the Hellenistic period. The finds from each period are presented separately, along with observations on the settlement history of the Early Bronze Age in northern Israel.

Diminished Nicotine Withdrawal In Adolescent Rats: Implications For Vulnerability To Addiction, Laura O'Dell

Departmental Papers (Psych)

No abstract provided.

Strategies Of Sex And Survival In Hamadryas Baboons: Through A Female Lens, Larissa Swedell

Publications and Research

No abstract provided.