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Morphological Convergence Of Shell Shape In Distantly Related Scallop Species (Mollusca: Pectinidae), Alvin Alejandrino, Jeanne M. Serb, Erik Otárola-Castillo, Dean C. Adams

Biology

Morphological convergence is a central concept in evolutionary biology, but convergent patterns remain under-studied in nonvertebrate organisms. Some scallop species exhibit long-distance swimming, a behaviour whose biomechanical requirements probably generate similar selective regimes. We tested the hypothesis that shell shape similarity in long-distance swimming species is a result of convergent evolution. Using landmark-based geometric morphometrics, we quantified shell shape in seven species representing major behavioural habits. All species displayed distinct shell shapes, with the exception of the two long-distance swimmers, whose shells were indistinguishable. These species also displayed reduced morphological variance relative to other taxa. Finally, a phylogenetic simulation revealed …

Fentanyl And Spiradoline Interactions In A Place-Conditioning Black-White Shuttle-Box, David J. Mokler, Richard H. Rech, Shannon L. Briggs

Biomedical Sciences Faculty Publications

Rats were trained for multiple sessions in a place-conditioning shuttle-box to explore motivational interactions of mu and kappa opioid agonists, specifically fentanyl reward and spiradoline aversion. In Phase 1, groups of rats received various doses of mu or kappa agonists, or placebo, testing for preference or aversion. Group A always received saline SC before 15-minute sessions. Group B received fentanyl SC (0.003, 0.006, 0.012 mg/kg), Group C received low and medium doses of agonists SC, and Group D received spiradoline (0.3, 0.6, 1.2 mg/kg) SC during Training Sessions 1-4, rats being restricted to the drug-associated compartment. Rats received saline when …

Lawrence University Report To The Community 2010-2011, Lawrence University

Reports to the Community

No abstract provided.

Southern Adventist University Undergraduate Catalog 2011-2012, Southern Adventist University

Catalog, Undergraduate

Southern Adventist University's undergraduate catalog for the academic year 2011-2012.

Genetic Analysis Of The Neurosteroid Deoxycorticosterone And Its Relation To Alcohol Phenotypes: Identification Of Qtls And Downstream Gene Regulation, Patrizia Porcu, Todd K. O'Buckley, Soomin C. Song, Jo Lynne Harenza, Lu Lu, Xusheng Wang, Michael F. Miles, A. Leslie Morrow

Neurology Publications

Background

Deoxycorticosterone (DOC) is an endogenous neurosteroid found in brain and serum, precursor of the GABAergic neuroactive steroid (3α,5α)-3,21-dihydroxypregnan-20-one (tetrahydrodeoxycorticosterone, THDOC) and the glucocorticoid corticosterone. These steroids are elevated following stress or ethanol administration, contribute to ethanol sensitivity, and their elevation is blunted in ethanol dependence.

Methodology/Principal Findings

To systematically define the genetic basis, regulation, and behavioral significance of DOC levels in plasma and cerebral cortex we examined such levels across 47 young adult males from C57BL/6J (B6)×DBA/2J (D2) (BXD) mouse strains for quantitative trait loci (QTL) and bioinformatics analyses of behavior and gene regulation. Mice were injected with saline …

Marine Reptiles, Arne R. Rasmessen, John D. Murphy, Medy Ompi, J. Whitfield Gibbons, Peter Uetz

Study of Biological Complexity Publications

Of the more than 12,000 species and subspecies of extant reptiles, about 100 have re-entered the ocean. Among them are seven species of sea turtles and about 80 species and subspecies of sea snakes, as well as a few other species that are occasionally or regularly found in brackish waters, including various other snakes, the saltwater crocodile, and the marine iguana of the Galapagos Islands. The largest group of marine reptiles, the sea snakes, occur in the tropical and subtropical waters of the Indian and Pacific Oceans from the east coast of Africa to the Gulf of Panama. They inhabit …

Air Pollution & The Brain: Subchronic Diesel Exhaust Exposure Causes Neuroinflammation And Elevates Early Markers Of Neurodegenerative Disease, Shannon Levesque, Michael J. Surace, Jacob Mcdonald, Michelle L. Block

Anatomy and Neurobiology Publications

Background

Increasing evidence links diverse forms of air pollution to neuroinflammation and neuropathology in both human and animal models, but the effects of long-term exposures are poorly understood.

Objective

We explored the central nervous system consequences of subchronic exposure to diesel exhaust (DE) and addressed the minimum levels necessary to elicit neuroinflammation and markers of early neuropathology.

Methods

Male Fischer 344 rats were exposed to DE (992, 311, 100, 35 and 0 μg PM/m³) by inhalation over 6 months.

Results

DE exposure resulted in elevated levels of TNFα at high concentrations in all regions tested, with the exception …

Chronic Apocynin Treatment Attenuates Beta Amyloid Plaque Size And Microglial Number In Happ(751)Sl Mice, Melinda E. Lull, Shannon Levesque, Michael J. Surace, Michelle L. Block

Anatomy and Neurobiology Publications

Background

NADPH oxidase is implicated in neurotoxic microglial activation and the progressive nature of Alzheimer's Disease (AD). Here, we test the ability of two NADPH oxidase inhibitors, apocynin and dextromethorphan (DM), to reduce learning deficits and neuropathology in transgenic mice overexpressing human amyloid precursor protein with the Swedish and London mutations (hAPP(751)SL).

Methods

Four month old hAPP(751)SL mice were treated daily with saline, 15 mg/kg DM, 7.5 mg/kg DM, or 10 mg/kg apocynin by gavage for four months.

Results

Only hAPP(751)SL mice treated with apocynin showed reduced plaque size and a reduction in the number of cortical microglia, when compared …

Menorah Review (No. 74, Winter/Spring, 2011)

Menorah Review

A Novelist's View of Nineteenth Century Judaism -- An Evolutionary, Nonzero Approach to the Abrahamic Traditions -- Author's reflections -- Books in Brief: New and Notable -- Moreshet: From the Classics -- Post-Zionism... Post-Holocaust -- The Jewish Experience in 17th century Barbados -- Two Poems -- Zachor: From the Records of the Nuremberg Trials, 1945-6

The Streptococcus Sanguinis Competence Regulon Is Not Required For Infective Endocarditis Virulence In A Rabbit Model, Jill E. Callahan, Cindy L. Munro, Todd Kitten

Philips Institute for Oral Health Research Publications

Streptococcus sanguinis is an important component of dental plaque and a leading cause of infective endocarditis. Genetic competence in S. sanguinis requires a quorum sensing system encoded by the early comCDE genes, as well as late genes controlled by the alternative sigma factor, ComX. Previous studies of Streptococcus pneumoniae and Streptococcus mutans have identified functions for the >100-gene com regulon in addition to DNA uptake, including virulence. We investigated this possibility in S. sanguinis. Strains deleted for the comCDE orcomX master regulatory genes were created. Using a rabbit endocarditis model in conjunction with a variety of virulence assays, …

Preparing A Professional Teaching Portfolio For An Art Teaching Position, Melanie L. Buffington

Art Education Publications

Over time, the idea of bringing a professional teaching portfolio to a job interview has become an expectation. Preparing these portfolios is a common part of teacher education programs and can be excellent preparation for a job interview. Additionally, teachers who are looking into changing positions will need to prepare a professional portfolio and this process may help them reflect on their practice too. The habits required for creating a professional teaching portfolio; including documenting classroom practices, reflecting on these practices, and organizing this content-are habits that can enhance teaching practice throughout a career.

Erratic Jet Wobbling In The Bl Lacertae Object Oj287 Revealed By Sixteen Years Of 7mm Vlba Observations, B. Glenn Piner, Alan P. Marscher, Svetlana G. Jorstad, Jose L. Gomez, Manel Perucho, Maria Rioja, Richard Dodson

Physics

No abstract provided.

Law In Isolation: The Legal History Of Pitcairn Island, 1900-2010, Michael O. Eshleman

ILSA Journal of International & Comparative Law

"Mis-ter Chris-tian!" is a bark echoing through the decades, a byword for insubordination, thanks to Charles Laughton's signature-and quite fanciful-performance as Captain William Bligh, R.N., commander of the Royal Navy's Bounty

National Register Testing At 41hm46, Hamilton County, Texas: Cr 294 Bridge Replacement At The Leon River, John E. Dockall, Cory J. Broehm, Karl W. Kibler

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

Prewitt and Associates, Inc., conducted test excavations at site 41HM46 in Hamilton County, Texas, to determine its eligibility for listing in the National Register of Historic Places. The work was performed in September 2003 in conjunction with a proposed bridge replacement on County Road 294 over the Leon River.

The excavations consisted of three backhoe trenches, eight shovel tests, and seven hand-dug test units totaling 7 m3 . Excavations yielded a small assemblage of chipped stone artifacts (tools, cores, and unmodified debitage), two features, and other cultural materials that appear to be associated with occupations ranging from the Late Archaic …

Archaeological Data Recovery (41tr198) And Survey Within The Riverside Oxbow Project Tarrant County, Texas, Duane E. Peter, James Harrison

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

This report presents the findings of the survey of 75 acres and the excavation of 28 cubic meters of site 41TR198 (Crooked Oxbow Site) within the Riverside Oxbow Project sponsored by the U.S. Army Corps of Engineers, Fort Worth District, in partnership with the City of Fort Worth and the Tarrant County Water District. Planned impacts from this proposed project include habitat restoration, channel reestablishment, vegetation plantings, new roads, and sports field construction. The deepest impacts planned for the Area of Potential Effects are one meter and involve the excavation of a shallow lake utilizing the relict oxbow bordering site …

Analysis Of The 19th Century Historic Archaeological Material Culture Remains From The Browning Site In Smith County, Texas, Timothy K. Perttula, Mark Walters

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

The Browning site (41SM195A) is located on a 3800 m² alluvial terrace that overlooks the Auburn Creek floodplain in eastern Smith County, Texas. This setting is near the headwaters of a stream system in the Harris Creek drainage; Harris Creek meets the Sabine River ca. 34 km to the north. In the vicinity of the Browning site, the valley, being narrow with steep valley walls, offers few locations suitable for either prehistoric or historic occupations. Soils here arc Entisols; they vary in depth from 30-70 em across the landform, terminating at a sandstone C-horizon. These arc soils that formed …

The Marcus Kolb Site (41ce438), Cherokee County, Texas, Timothy K. Perttula

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

In 200 l, Claude McCrocklin conducted metal detecting and test excavations at an historic 19th century site in the upper Neches River basin of East Texas. Based on the findings from that work, unreported until now, McCrocklin believed that this site was occupied by the East Texas Cherokee. This site, the Marcus Kolb site (41CE438), "was confirmed by the artifacts identical with those found on Lost Prairie in Arkansas." The Lost Prairie sites referred to by McCrocklin are the early 19th century Lost Prairie Cherokee sites along the Red River in southwestern Arkansas investigated by McCrocklin. The Marcus Kolb site …

Analysis Of The Prehistoric Artifacts From The Pace Mcdonald Site (41an51), Anderson County, Texas, Timothy K. Perttula

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

The Pace McDonald site (41AN51) is a poorly known prehistoric Caddo mound center on Mound Prairie Creek in Anderson County, Texas, in the upper Neches River Basin. With the permission of one of the landowners, Mr. Johnny Sanford, the Friends of Northeast Texas Archaeology are planning on initiating an archaeological research effort at the site in 2010. The ultimate purpose of this work is to learn more about the native history of this mound center-when it was occupied and used, and by which prehistoric Caddo group--its intra-site spatial organization, and ultimately obtain site-specific archaeological information that can help understand the …

Analysis Of Artifacts From A 2010 Surface Collection At The Pace Mcdonald Site (41an51), A Probable Middle Caddo Mound Center In Anderson County, Texas, Timothy K. Perttula, Mark Walters, Bo Nelson

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

The Pace McDonald site (41AN51) is a prehistoric Caddo mound center on Mound Prairie Creek in Anderson County, Texas, in the upper Neches River Basin. With the permission of one of the landowners, Mr. Johnny Sanford, the Friends of Northeast Texas Archaeology has initiated an archaeological research effort at the site in 2010, the first part of which was an April 2010 surface reconnaissance of the Sanford lands at the site, and the surface collection of artifacts exposed there following shallow disking of several tracts within the known boundaries of the site. This article discusses the character of the artifacts …

Archaeological Sites Along King Creek In Western Nacogdoches County, In East Texas, Timothy K. Perttula, Bo Nelson, Mark Walters

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

The King Creek area of western Nacogdoches County in East Texas is known to be a locality where Historic Caddo sites (of the Allen phase, ca. A.D. 1650-1800) are abundant, or at least abundant relative to many other parts of East Texas. In addition to there being at least two branches of the late 17th-early 19th century El Camino Real de los Tejas that bisect the area on their way to crossings on the nearby Angelina River, three important Historic Caddo sites have been identified not far apart in the valley: J. T. King (41NAI5), David King (41NA32l), and Wes …

The Pipe Site, A Late Caddo Site At Lake Palestine In Anderson County, Texas, Timothy K. Perttula

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

Buddy Calvin Jones excavated a Late Caddo cemetery and midden site he called the Lake Palestine site, in Anderson County, Texas, in March 1968. His notes indicate that a total of 21 Caddo burials were excavated at the site, and the burials were situated primarily around a midden of unknown dimensions. Jones' notes do not specify how many of the burials he excavated at the Pipe site, but one photograph in the records suggests he excavated at least three, one burial of which is the focus of this article.

Reconstructing Ancient Foodways At The Jones Mill Site (3hs28), Hot Spring County, Arkansas, Mary Beth D. Trubitt, Kathryn Parker, Lucretia Kelly

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

Analyses of botanical and faunal samples and a new radiocarbon date provide a detailed picture of Indian foodways at the Jones Mill site on the Ouachita River in Arkansas. Hunting, plant processing, and fishing with nets is seen from Middle Archaic artifacts and features. Burned hickory nutshell found among clusters of fire-cracked rock shows the importance of nut masts as food between 6000-4300 B.C. By 1450 A.D., a more substantial community of people lived at Jones Mill. Refuse associated with traces of a Caddo period house provided direct evidence for the cultivation of maize and native Eastern Complex starchy seed …

An Earspool From Near Ada, Pontotoc County, Oklahoma?, Robert L. Brooks

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

Earspools are generally acknowledged as status markers for ranking elites in Caddoan populations occupying the Arkansas River basin as well as the Caddo homelands in the Red River basin. In the Arkansas River basin, Baerreis and more recently Brown have discussed the attributes of earspools found at Spiro. There is also documentation for earspools found at other Arkansas River basin sites such as Harlan and Huffaker. Earspools at sites reported for the Red River basin include Gahagan and George C. Davis among others. However, the appearance of earspools at sites outside of the core areas is not well documented. Two …

A Radiocarbon Date From A Middle Caddo Period Habitation Site On Hickory Creek, Houston County, Texas, Timothy K. Perttula

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

The National Forests and Grasslands (U.S.D.A. Forest Service) in Texas (NFGT) conducted Passports in Time (PIT) projects in 2006 and 2007 on Hickory Creek in the Davy Crockett National Forest, Houston County, Texas. The work took place at four prehistoric archeological sites: 41HO13, HC-1, Hickory Creek #2 (HC-2), and HC-3, with the majority of the work occurring at the Hickory Creek #2 site. Following discussions with the NFGT, the NFGT agreed to turn over the collections and available notes/records to me for the purposes of completing a volunteer analysis of these collections and preparing a report on the analytical findings. …

Measurement Of Particle Size Distribution In A Swine Building, Sheryll B. Jerez, Yuanhui Zhang, X Wang

Faculty Publications

The majority of the research in animal buildings has been on measured concentrations of contaminants that the workers and animals are exposed to; emission measurements have only gained attention in recent years due to potential federal regulations on air quality emissions from animal feeding operations (AFOs). The contribution of AFOs to ambient PM10 and PM2.5 entails reliable measurement of particle size distribution. The objective of this study was to measure and compare the size distribution of particulate matter (PM) at multiple locations inside and at the exhausts of a wean‐to‐finish commercial swine building. The particle size distribution was measured by …

Spatial And Temporal Distributions Of Dust And Ammonia Concentrations In A Swine Building, Sheryll B. Jerez, Yuanhui Zhang, X Wang

Faculty Publications

Pollutants, especially dust, are rarely uniformly distributed within ventilated air spaces due to non‐uniform flow fields, particle inertia, gravitational settling, and diffusion. Thus, selecting suitable sampling locations for representative sampling is a challenge. The objective of this study was to determine the spatial and temporal distributions of dust and ammonia concentrations(NH3) in a swine building. Results of this study are useful in the design of sampling strategies that require limited sampling locations and in studying pollutant transport. This study was conducted in a commercial swine building in Illinois. The total suspended particulate (TSP) matter and ammonia concentrations were measured at …

Spread Of Plague Among Black-Tailed Prairie Dogs Is Associated With Colony Spatial Characteristics, Christopher Frey, Tammi L. Johnson, Jack Cully Jr., Sharon K. Collinge, Chris Ray, Brett Sandercock

Faculty Publications

Sylvatic plague (Yersinia pestis) is an exotic pathogen that is highly virulent in black-tailed prairie dogs (Cynomys ludovicianus) and causes widespread colony losses and individual mortality rates >95%. We investigated colony spatial characteristics that may influence inter-colony transmission of plague at 3 prairie dog colony complexes in the Great Plains. The 4 spatial characteristics we considered include: colony size, Euclidean distance to nearest neighboring colony, colony proximity index, and distance to nearest drainage (dispersal) corridor. We used multi-state mark–recapture models to determine the relationship between these colony characteristics and probability of plague transmission among prairie dog colonies. Annual mapping of …

Involving The Public In Restoring The Role Of Fire In The Longleaf Pine Ecosystem Of Upland Island Wilderness, Brian P. Oswald, Ike Mcwhorter, Penny Whisenant

Faculty Publications

The 13,250-acre Upland Island Wilderness (UIW) in Texas was established in 1984 and is managed by the United States Forest Service (USFS). Historically, portions of it consisted of open and diverse longleaf pine (Pinus palustris) ecosystems which depend on frequent, low-intensity surface fires. As in many other relatively small wilderness areas, the vegetation and fuel conditions in the UIW underwent extensive changes after wilderness designation. Lightning-caused wildfires were no longer allowed to burn with the frequency or intensity that characterized the natural fire regime. This has resulted in an increase of shade-tolerant trees and shrubs, heavy accumulations of …

An Intensive Archaeological Survey: Brownsville Independent School District Early College High School Project, Cameron County Texas, Sergio A. Iruegas, Melinda Tate-Iruegas

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

This report documents the results of an intensive archaeological survey for the Brownsville Independent School District (BISD) Early College High School Project on the south west bank of Fort Brown Resaca., Cameron County, Texas. In accordance with the Antiquities Code of Texas (13TAC26.21), GTI submitted an Antiquities Permit application to Texas Historical Commission, and GTI Environmental, Inc. (GTI) was issued Antiquities Permit # 5862. This intensive archaeological survey demonstrates the BISD’s compliance with the code by identifying cultural resources as early as possible in the planning process, and it also demonstrates BISD’s continued efforts of their responsibility to provide prior …

National Register Of Historic Places Eligibility Testing Of Site 41sm385 Within Txdot's Tyler District, Smith County, Texas, Michael A. Nash, Linda W. Ellis, Candace L. Wallace, Erin K. Watkins

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

PBS&J, an Atkins company, was contracted by the North East Texas Regional Mobility Authority to conduct National Register of Historic Places eligibility testing of site 41SM385, a prehistoric campsite on a small rise above the floodplain of Indian Creek in western Smith County, Texas. Testing investigations were conducted during March and September 2009. The site was subjected to a systematic program of shovel testing, mechanical trenching, and hand excavation in an effort to identify cultural features or living surfaces and optimize recovery of diagnostic faunal, floral, and artifactual remains.

The recovered cultural artifacts indicate that site 41SM385 represents a probable …