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Uaa Student Showcase Journal: Recognizing Excellence (2000), N/A N/A Apr 2000

Uaa Student Showcase Journal: Recognizing Excellence (2000), N/A N/A

Publications

No abstract provided.

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The Discovery Of An Embedded Cluster Of High-Mass Starts Near Sgr 1900+14, Frederick J. Vbra, Arne A. Henden, Christian B. Luginbuhl, Harry H. Guetter, Dieter H. Hartmann, Sylvio Klose Apr 2000

The Discovery Of An Embedded Cluster Of High-Mass Starts Near Sgr 1900+14, Frederick J. Vbra, Arne A. Henden, Christian B. Luginbuhl, Harry H. Guetter, Dieter H. Hartmann, Sylvio Klose

Publications

Deep I-band imaging to of the soft gamma-ray repeater SGR 1900ϩ14 region has revealed a compact I ≈ 26.5 cluster of massive stars located only a few arcseconds from the fading radio source thought to be the location of the soft gamma-ray repeater (SGR). This cluster was previously hidden in the glare of the pair of M5 supergiant stars (whose light was removed by point-spread function subtraction) proposed by Vrba et al. as likely associated with SGR 1900ϩ14. The cluster has at least 13 members within a cluster radius of ≈0.6 pc based on an estimated distance of 12–15 kpc. …

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“Tired Pens” A Review Of Ronald Weber, Hired Pens - Professional Writers In America’S Golden Age Of Print, Susanna Ashton Apr 2000

“Tired Pens” A Review Of Ronald Weber, Hired Pens - Professional Writers In America’S Golden Age Of Print, Susanna Ashton

Publications

Is it depressing or inspiring to discover that everyone work harder than you do? After reading Hired Pens: Professional Writers in America's Golden Age of Print, one will be forced either to the keyboard or the couch. Virtually every page of this excruciatingly detailed study chronicles people who measured out their lives by their word count. We learn that Zane Grey churned out over eighty books and was never off the best-seller lists between 1917-1925. Frederick Faust published 25 million words of fiction under at least 20 different names, not the least of which was Max Brand. Janet Dailey …

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A Meta-Analysis Of Paraprofessional-Delivered Interventions To Address Challenging Behavior Among Students With Disabilities, Virginia L. Walker, Megan E. Carpenter, Kristin J. Lyon, Lindsey Button Apr 2000

A Meta-Analysis Of Paraprofessional-Delivered Interventions To Address Challenging Behavior Among Students With Disabilities, Virginia L. Walker, Megan E. Carpenter, Kristin J. Lyon, Lindsey Button

Publications

Paraprofessionals report spending a substantial amount of time addressing challenging behavior in a range of school environments, yet identify behavioral intervention as a high-priority training area. The purpose of this meta-analysis was to systematically review and summarize single-case intervention studies involving paraprofessional-delivered behavioral interventions for students with disabilities. Descriptive findings suggest that, among the reviewed studies, paraprofessionals primarily provided behavioral support to students with autism spectrum disorder, intellectual disability, and multiple disabilities who engage in a wide range of challenging behaviors in both inclusive and noninclusive school environments. Overall, training largely was delivered by researchers and resulted in positive paraprofessional …

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Accountability Policy At The Street Level In Kentucky: Teachers And Administrators Debate The Fairness Of Continuous Improvement Versus Relative Standing, Jane Clark Lindle Apr 2000

Accountability Policy At The Street Level In Kentucky: Teachers And Administrators Debate The Fairness Of Continuous Improvement Versus Relative Standing, Jane Clark Lindle

Publications

While scholars of educational accountability policy will not be surprised at the power of local implementers in modifying accountability efforts, Kentucky's street-level debate splits two constituencies in defining a fair system. Advocates for the education of all children including the poor and minorities support the continuous improvement model, while elite advocates support recognition of relative standing of schools. This paper includes data from teachers and administrators in four schools identified as eligible for state assistance under Kentucky's testing and accountability system. Of particular interest are the perceptions of accountability held by teachers and administrators in one school that had received …

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Aquaculture Performance Comparison Of Sunshine Bass, Palmetto Bass, And White Bass, James B. Rudacille, Christopher C. Kohler Apr 2000

Aquaculture Performance Comparison Of Sunshine Bass, Palmetto Bass, And White Bass, James B. Rudacille, Christopher C. Kohler

Publications

Aquaculture performance of phase II and phase III sunshine bass (a female white bass Morone chrysops × male striped bass M. saxatilis), palmetto bass (a female striped bass × male white bass), and white bass were evaluated in separate 12-week yield trials conducted in indoor recirculating-water systems. Phase II sunshine bass, palmetto bass, and white bass had mean initial weights of 40.0 g, 39.7 g, and 41.0 g, respectively. A diet containing 40.2% crude protein (CP) was fed to fish twice daily at a rate of 3% body weight/d. At the end of the trial, sunshine bass and white …

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Agents’ Perceptions Of Structure: How Illinois Organic Farmers View Political, Economic, Social, And Ecological Factors, Leslie Duram Mar 2000

Agents’ Perceptions Of Structure: How Illinois Organic Farmers View Political, Economic, Social, And Ecological Factors, Leslie Duram

Publications

Various structural factors influence organic farmer decision-making. Analyses that combine structure and agency provide an opportunity for understanding farmers' perceptions of the political, economic, and social "world" in which they operate. Rich conversational interviews, conducted with twenty certified organic farmers in Illinois and analyzed with multiple qualitative methods, show how farmers mediate structural concerns. In addition to political, economic, and social structures, a fourth structure is needed. Indeed these organic farmers emphasize the importance of ecological factors in their decision-making. Within the perceived economic, political, social, and ecological structures, numerous topics (i.e., marketing, policy, family, ecosystems) and subtopics (i.e., diversification, …

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Superflares On Ordinary Solar-Type Stars, Bradley E. Schaefer, Jeremy R. King, Constantine P. Deliyannis Feb 2000

Superflares On Ordinary Solar-Type Stars, Bradley E. Schaefer, Jeremy R. King, Constantine P. Deliyannis

Publications

Short duration flares are well known to occur on cool main-sequence stars as well as on many types of `exotic' stars. Ordinary main-sequence stars are usually pictured as being static on time scales of millions or billions of years. Our sun has occasional flares involving up to ∼1031 ergs which produce optical brightenings too small in amplitude to be detected in disk-integrated brightness. However, we identify nine cases of superflares involving 1033 to 1038 ergs on normal solar-type stars. That is, these stars are on or near the main-sequence, are of spectral class from F8 to G8, are single (or …

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The Lithium-Rotation Correclation In The Pleiades Revisited, Jeremy R. King, Anita Krishnamurthi, Marc H. Pinsonneault Feb 2000

The Lithium-Rotation Correclation In The Pleiades Revisited, Jeremy R. King, Anita Krishnamurthi, Marc H. Pinsonneault

Publications

The dispersion in lithium abundance at fixed effective temperature in young cool stars like the Pleiades has proved a difficult challenge for stellar evolution theory. We propose that Li abundances relative to a mean temperature trend, rather than the absolute abundances, should be used to analyze the spread in abundance. We present evidence that the dispersion in Li equivalent widths at fixed color in cool single Pleiades stars is at least partially caused by stellar atmosphere effects (most likely departures from ionization predictions of model photospheres) rather than being completely explained by genuine abundance differences. We find that effective temperature …

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The Human Factors Analysis And Classification System--Hfacs, Scott A. Shappell, Douglas A. Wiegmann Feb 2000

The Human Factors Analysis And Classification System--Hfacs, Scott A. Shappell, Douglas A. Wiegmann

Publications

Human error has been implicated in 70 to 80% of all civil and military aviation accidents. Yet, most accident reporting systems are not designed around any theoretical framework of human error. As a result, most accident databases are not conducive to a traditional human error analysis, making the identification of intervention strategies onerous. What is required is a general human error framework around which new investigative methods can be designed and existing accident databases restructured. Indeed, a comprehensive human factors analysis and classification system (HFACS) has recently been developed to meet those needs. Specifically, the HFACS framework has been used …

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The Decreased Replicative Capacity Of Simian Immunodeficiency Virus Sivmac239Δnef Is Manifest In Cultures Of Immature Dendritic Cells And T Cells, Davorka Messmer, Ralf Ignatius, Christine Santisteban Jan 2000

The Decreased Replicative Capacity Of Simian Immunodeficiency Virus Sivmac239Δnef Is Manifest In Cultures Of Immature Dendritic Cells And T Cells, Davorka Messmer, Ralf Ignatius, Christine Santisteban

Publications

Transmission of simian immunodeficiency virus SIVmac239Δnef (Δnef) to macaques results in attenuated replication of the virus in most animals and ultimately induces protection against challenge with some pathogenic, wild- type SIV strains. It has been difficult, however, to identify a culture system in which the replication of Δnef is severely reduced relative to that of the wild type. We have utilized a primary culture system consisting of blood-derived dendritic cells (DCs) and autologous T cells. When the DCs were fully differentiated or mature, the DC-CD4+ T-cell mixtures supported replication of both the parental SIV strain, 239 (the wild type), …

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Mature Dendritic Cells Boost Functionally Superior Cd8+ T-Cell In Humans Without Foreign Helper Epitopes, Madhav V. Dhodapkar, Joseph Krasovsky, Ralph M. Steinman, Nina Bhardwaj Jan 2000

Mature Dendritic Cells Boost Functionally Superior Cd8+ T-Cell In Humans Without Foreign Helper Epitopes, Madhav V. Dhodapkar, Joseph Krasovsky, Ralph M. Steinman, Nina Bhardwaj

Publications

We have recently shown that a single injection of mature, antigen- pulsed, human dendritic cells (DCs) rapidly elicits CD4+ and CD8+ T-cell immunity in vivo. The DCs were pulsed with 2 foreign proteins, keyhole limpet hemocyanin (KLH) and tetanus toxoid (TT), as well as an HLA A2.1-restricted influenza matrix peptide (MP). Responses to all 3 antigens peaked at 30-90 days after immunization and declined thereafter. To determine if the foreign helper proteins (TT and KLH) were essential for CD8+ T-cell responses to the viral peptide, we reinjected 3 of the HLA-2.1 subjects with mature DCs pulsed with …

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The Formation Of Immunogenic Major Histocompatibility Complex Class Ii-Peptide Ligands In Lysosomal Compartments Of Dendritic Cells Is Regulated By Inflammatory Stimuli, Kayo Inaba, Shannon J. Turley, Tomonori Iyoda Jan 2000

The Formation Of Immunogenic Major Histocompatibility Complex Class Ii-Peptide Ligands In Lysosomal Compartments Of Dendritic Cells Is Regulated By Inflammatory Stimuli, Kayo Inaba, Shannon J. Turley, Tomonori Iyoda

Publications

During their final differentiation or maturation, dendritic cells (DCs) redistribute their major histocompatibility complex (MHC) class II products from intracellular compartments to the plasma membrane. Using cells arrested in the immature state, we now find that DCs also regulate the initial intracellular formation of immunogenic MHC class II-peptide complexes. Immature DCs internalize the protein antigen, hen egg lysozyme (HEL), into late endosomes and lysosomes rich in MHC class II molecules. There, despite extensive colocalization of HEL protein and MHC class II products, MHC class II-peptide complexes do not form unless the DCs are exposed to inflammatory mediators such as tumor …

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The Dendritic Cell Receptor For Endocytosis, Dec-205, Can Recycle And Enhance Antigen Presentation Via Major Histocompatibility Complex Class Ii-Positive Lysosomal Compartments, Karsten Mahnke, Ming Guo, Sena J. Lee Jan 2000

The Dendritic Cell Receptor For Endocytosis, Dec-205, Can Recycle And Enhance Antigen Presentation Via Major Histocompatibility Complex Class Ii-Positive Lysosomal Compartments, Karsten Mahnke, Ming Guo, Sena J. Lee

Publications

Many receptors for endocytosis recycle into and out of cells through early endosomes. We now find in dendritic cells that the DEC-205 multilectin receptor targets late endosomes or lysosomes rich in major histocompatibility complex class II (MHC II) products, whereas the homologous macrophage mannose receptor (MMR), as expected, is found in more peripheral endosomes. To analyze this finding, the cytosolic tails of DEC-205 and MMR were fused to the external domain of the CD16 Fcγ receptor and studied in stable L cell transfectants. The two cytosolic domains each mediated rapid uptake of human immunoglobulin (Ig)G followed by recycling of intact …

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Will The Making Of Plasmacytoid Dendritic Cells In Vitro Help Unravel Their Mysteries?, Jacques Banchereau, Bali Pulendran, Ralph M. Steinman, Karolina A. Palucka Jan 2000

Will The Making Of Plasmacytoid Dendritic Cells In Vitro Help Unravel Their Mysteries?, Jacques Banchereau, Bali Pulendran, Ralph M. Steinman, Karolina A. Palucka

Publications

[No abstract available]

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Canarypox Virus-Induced Maturation Of Dendritic Cells Is Mediated By Apoptotic Cell Death And Tumor Necrosis Factor Alpha Secretion, Ralf Ignatius, Mary A. Marovich, Erin Mahlhop Jan 2000

Canarypox Virus-Induced Maturation Of Dendritic Cells Is Mediated By Apoptotic Cell Death And Tumor Necrosis Factor Alpha Secretion, Ralf Ignatius, Mary A. Marovich, Erin Mahlhop

Publications

Recombinant avipox viruses are being widely evaluated as vaccines. To address how these viruses, which replicate poorly in mammalian cells, might be immunogenic, we studied how canarypox virus (ALVAC) interacts with primate antigen-presenting dendritic cells (DCs). When human and rhesus macaque monocyte-derived DCs were exposed to recombinant ALVAC, immature DCs were most susceptible to infection. However, many of the infected cells underwent apoptotic cell death, and dying infected cells were engulfed by uninfected DCs. Furthermore, a subset of DCs matured in the ALVAC-exposed DC cultures. DC maturation coincided with tumor necrosis factor alpha (TNF-α) secretion and was significantly blocked in …

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Evaluation And Treatment Of Severe Hyperacusis, Michael Valente, Joel Goebel, Diane Duddy, Belinda Sinks, Judy Peterin Jan 2000

Evaluation And Treatment Of Severe Hyperacusis, Michael Valente, Joel Goebel, Diane Duddy, Belinda Sinks, Judy Peterin

Publications

No abstract provided.

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Performance Of Dual-Microphone In-The-Ear Hearing Aids, Michael Valente, Gerald Schuchman, Lisa G. Potts, Lucille B. Beck Jan 2000

Performance Of Dual-Microphone In-The-Ear Hearing Aids, Michael Valente, Gerald Schuchman, Lisa G. Potts, Lucille B. Beck

Publications

No abstract provided.

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Restoration Methods For Deepwater Swamps, William Conner, Kenneth W. Mcleod, Ellen Colodney Jan 2000

Restoration Methods For Deepwater Swamps, William Conner, Kenneth W. Mcleod, Ellen Colodney

Publications

Planting in deepwater swamp areas is difficult and time consuming, and nursery-grown seedlings are often not suited for such conditions. Baldcypress [Taxodium distichum (L.) Rich.], water tupelo (Nyssa aquatica L.), swamp blackgum [N. sylvatica var. biflora (Walt.) Sarg.], and green ash (Fraxinus pennsylvanica Marsh.) have been planted at various flooded sites in South Carolina and Louisiana. One of the most effective means of planting these species in flooded situations was to heavily prune the lateral roots, grasp the seedling at the root collar, and push it into the soil. Excellent results have been obtained with baldcypress, …

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Restoration Of A Severely Impacted Riparian Wetland System - The Pen Branch Project, William Conner, Christopher Barton, Eric A. Nelson, Randall K. Kolka, Kenneth W. Mcleod, Michelle Lakly, Douglas Martin, John Wiggington, Carl Trettin, Joe Wisniewski Jan 2000

Restoration Of A Severely Impacted Riparian Wetland System - The Pen Branch Project, William Conner, Christopher Barton, Eric A. Nelson, Randall K. Kolka, Kenneth W. Mcleod, Michelle Lakly, Douglas Martin, John Wiggington, Carl Trettin, Joe Wisniewski

Publications

The Savannah River Swamp is a 3020 ha forested wetland on the floodplain of the Savannah River and is located on the Department of Energy’s Savannah River Site (SRS) near Aiken, SC (Fig. 1). Historically the swamp consisted of
approximately 50% baldcypress-water tupelo stands, 40% mixed bottomland hardwood stands, and 10% shrub, marsh, and open water. Tributeries of the river were typical of Southeastern bottomland hardwood forests. The hydrology was controlled by flow from four creeks that drain into the swamp and by flooding of the Savannah River. Upstream dams on the Savannah River have caused some alteration of the …

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Economic Variables The Influence Plantation Sustainability In South Carolina's Coastal Zone, Circa 2000, Carolyn Reynolds Jan 2000

Economic Variables The Influence Plantation Sustainability In South Carolina's Coastal Zone, Circa 2000, Carolyn Reynolds

Publications

No abstract provided.

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Asca Observation Of The Quiescent X-Ray Counterpart To Sgr 1627-41, K. Hurley, T. Strohmayer, P. Li, C. Kouvelotou, P. Woods, J. Van Paradijs, T. Murakami, Dieter H. Hartmann, I. Smith, M. Ando Jan 2000

Asca Observation Of The Quiescent X-Ray Counterpart To Sgr 1627-41, K. Hurley, T. Strohmayer, P. Li, C. Kouvelotou, P. Woods, J. Van Paradijs, T. Murakami, Dieter H. Hartmann, I. Smith, M. Ando

Publications

We present a 2–10 keV ASCA observation of the field around the soft gamma repeater SGR 1627-41. A quiescent X-ray source, whose position is consistent both with that of a recently discovered BeppoSAX X-ray source and with the Interplanetary Network localization for this soft gamma repeater, was detected in this observation. In 2–10 keV X-rays, the spectrum of the X-ray source may be fit equally well by a power-law, blackbody, or bremsstrahlung function, with unabsorbed flux ≈ 5x 10^-12 ergs cm^-2 s^-1. We do not confirm continuation of a fading trend in the flux, and we find no evidence for …

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The Optical Afterglow Light Curve Of Grb 980519, Dieter H. Hartmann, F. J. Vrba, A. A. Henden, B. Canzian, S. E. Levine, C. B. Luginbuhi, H. H. Guetter, J. A. Munn, M. C. Gennings Jan 2000

The Optical Afterglow Light Curve Of Grb 980519, Dieter H. Hartmann, F. J. Vrba, A. A. Henden, B. Canzian, S. E. Levine, C. B. Luginbuhi, H. H. Guetter, J. A. Munn, M. C. Gennings

Publications

We present V -, R-, and I-band observations made at the US Naval Observatory, Flagstaff† Station, of the afterglow of GRB 980519 on UT 1998 May 20 and 22. These observations are combined with extensive data from the literature, and all are placed on a uniform magnitude system. The resultant R- and I-band light curves are fit by simple power laws with no breaks and indices of αR = 2.30 ± 0.12 and αI = 2.05 ± 0.07. This makes the afterglow of GRB 980519 one of the two steepest afterglows yet observed. The combined B-, V -, R-, and …

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Calcitonin Gene-Related Peptide Decreases Expression Of Hla-Dr And Cd86 By Human Dendritic Cells And Dampens Dendritic Cell-Driven T Cell- Proliferative Responses Via The Type I Calcitonin Gene-Related Peptide Receptor, John A. Carucci, Ralf Ignatius, Yang Wei Jan 2000

Calcitonin Gene-Related Peptide Decreases Expression Of Hla-Dr And Cd86 By Human Dendritic Cells And Dampens Dendritic Cell-Driven T Cell- Proliferative Responses Via The Type I Calcitonin Gene-Related Peptide Receptor, John A. Carucci, Ralf Ignatius, Yang Wei

Publications

These studies were performed to establish whether functional receptors for calcitonin gene-related peptide (CGRP) are present on human dendritic cells (DCs) and to investigate potential immunomodulatory effects of CGRP on DCs other than Langerhans cells. Reverse transcriptase-PCR revealed expression of mRNA for a type 1 CGRP receptor by mature and immature blood- derived DCs. Sequence analysis confirmed the identity of the type 1 CGRP receptor (CGRP-R1). Addition of CGRP (10-7 M) to mature and immature DCs resulted in mobilization of intracellular calcium. Treatment of immature DCs with CGRP (10-7 M), before and after maturation in monocyte-conditioned medium, resulted …

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Dendritic Cells, Infected With Vesicular Stomatitis Virus-Pseudotyped Hiv-1, Present Viral Antigens To Cd4+ And Cd8+ T Cells From Hiv-1-Infected Individuals, Angela Granelli-Piperno, Lei Zhong, Patrick Haslett Jan 2000

Dendritic Cells, Infected With Vesicular Stomatitis Virus-Pseudotyped Hiv-1, Present Viral Antigens To Cd4+ And Cd8+ T Cells From Hiv-1-Infected Individuals, Angela Granelli-Piperno, Lei Zhong, Patrick Haslett

Publications

Nonreplicating vectors are being considered in HIV-1 vaccine design. However, nonreplicating viruses are typically weak immunogens, leading to efforts to target the vaccine to mature dendritic cells (DCs). We have studied a single-cycle form of HIV-1, prepared by pseudotyping envelope-defective HIV-1 plasmids with the envelope from vesicular stomatitis virus (VSV) G protein (VSV-G), to which most humans lack preexisting immunity. The nonreplicating, VSV/HIV-1 efficiently infected the immature stage of DC development, in this case represented by monocytes cultured with GM-CSF and IL-4. A majority of the cells reverse transcribed the HIV-1 RNA, and a minority expressed gag protein. The infected …

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Climate Change: The Next Dimension, Lakshman Guruswamy Jan 2000

Climate Change: The Next Dimension, Lakshman Guruswamy

Publications

No abstract provided.

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Environmentalism, Human Rights And Indigenous Peoples: A Tale Of Converging And Diverging Interests, S. James Anaya Jan 2000

Environmentalism, Human Rights And Indigenous Peoples: A Tale Of Converging And Diverging Interests, S. James Anaya

Publications

No abstract provided.

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Information Dissemination In Alternative Agricultural Research: An Analysis Of Researchers In The North Central Region, K L. Larson, Leslie Duram Jan 2000

Information Dissemination In Alternative Agricultural Research: An Analysis Of Researchers In The North Central Region, K L. Larson, Leslie Duram

Publications

Agricultural research and education significantly influence the direction of U.S. agriculture by improving the practices available to farmers and by decreasing uncertainties associated with adopting new farming practices. Because sustainable agriculture is management-intensive, access to information is particularly important in adopting and implementing sustainable farming practices. Given that relatively little funding is allocated to sustainable agriculture research by the federal government, successful dissemination of these research results is critical. This paper presents an analysis of the dissemination efforts of 42 researchers funded through the USDA's North Central Region Sustainable Agriculture Research and Education (SARE) program. Results show that these SARE …

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Overwinter Growth And Survival Of Largemouth Bass: Interactions Among Size, Food, Origin, And Winter Severity, Aimee H. Fullerton, James E. Garvey, Russell A. Wright, Roy A. Stein Jan 2000

Overwinter Growth And Survival Of Largemouth Bass: Interactions Among Size, Food, Origin, And Winter Severity, Aimee H. Fullerton, James E. Garvey, Russell A. Wright, Roy A. Stein

Publications

Winter severity (temperature, duration, and photocycle), geographic origin, food availability, and initial body size likely influence growth, survival, and, therefore, recruitment of age-0 largemouth bass Micropterus salmoides. We collected age-0 largemouth bass (70–160 mm total length) from low (33°N), intermediate (40°N), and high (45°N) latitudes throughout their natural range (origin), and we subjected all three groups of fish to three experimental winters that mimicked these latitudes (N = 9 largemouth bass per treatment). Within each winter and origin, one-half of the largemouth bass were fed fish prey, whereas the remaining one-half were starved. Winter strongly influenced survival; overall …

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Climb High: High Altitude Mountaineering Lessons For Librarians, Georgia Briscoe Jan 2000

Climb High: High Altitude Mountaineering Lessons For Librarians, Georgia Briscoe

Publications

No abstract provided.

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