Bioenergy Sustainability In China: Potential And Impacts, 2009 University of Tennessee, Knoxville
Bioenergy Sustainability In China: Potential And Impacts, Jie Zhuang, Randall Gentry, Gui-Rui Yu, Gary Sayler, John Bickham
Gary S. Sayler
The sustainability implications of bioenergy development strategies are large and complex. Unlike conventional agriculture, bioenergy production provides an opportunity to design systems for improving eco-environmental services. Different places have different goals and solutions for bioenergy development, but they all should adhere to the sustainability requirements of the environment, economy, and society. This article serves as a brief overview of China’s bioenergy development and as an introduction to this special issue on the impacts of bioenergy development in China. The eleven articles in this special issue present a range of perspectives and scenario analyses on bioenergy production and its impacts ...
Darwinian Controversies: An Historiographical Recounting, 2009 University of Iowa
Darwinian Controversies: An Historiographical Recounting, David Depew
David J Depew
This essay reviews key controversies in the history of the Darwinian research tradition: the Wilberforce-Huxley debate in 1860, early twentieth-century debates about the heritability of acquired characteristics and the consistency of Mendelian genetics with natural selection; the 1925 Scopes trial about teaching evolution; tensions about race, culture, and eugenics at the 1959 centenary celebration Darwin’s Origin of Species; adaptationism and its critics in the Sociobiology debate of 1970s and, more recently, Evolutionary Psychology; and current disputes about Intelligent Design. These controversies, I argue, are etched into public memory because they occur at the emotionally charged boundaries between public-political, technical-scientific ...
Amygdala And Dorsomedial Prefrontal Cortex Responses To Appearance-Based And Behavior-Based Person Impressions., Sean Baron, M Gobinni, Andrew Engell, Alex Todorov
Investigation Of Murine Spleen As A Niche For Hematopoiesis., 2009 Australian National University
Investigation Of Murine Spleen As A Niche For Hematopoiesis., Jonathan Tan, Helen O'Neill
Background Spleen as a lymphoid tissue is specialized for monitoring blood and mounting immunity against blood-borne antigens. Antigen-presenting cells present in spleen commonly develop from bone marrow-derived precursors that enter blood circulation. However, a distinct splenic myeloid antigen-presenting cell subset described in this laboratory, namely “dendritic-like cells” (L-DC), has been hypothesized not to share a bone marrow origin. Methods In this study, the presence of endogenous hematopoietic progenitors in spleen was investigated by transplanting intact spleen into allotype-distinct recipients and monitoring development of progeny cells in grafted tissues. Results Successful engraftment of donor spleens was achieved for up to 4 ...
China-Us Workshop On Biotechnology Of Bioenergy Plants, 2009 University of Tennessee, Knoxville
China-Us Workshop On Biotechnology Of Bioenergy Plants, C. Stewart, Lee Shugart, Gong-She Liu, Jie Zhuang, Yongqing Ma, Gerald Tuskan, Richard Meilan, Randall Gentry, Gary Sayler
Gary S. Sayler
Two New Species Of Bryophryne (Anura: Strabomantidae) From High Elevations In Southern Peru (Region Of Cusco), 2009 Illinois Wesleyan University
Two New Species Of Bryophryne (Anura: Strabomantidae) From High Elevations In Southern Peru (Region Of Cusco), Edgar Lehr, Alessandro Catenazzi
We describe two new species of Bryophryne from the Region of Cusco, Provincia de La Convencio´n in southern Peru, increasing the number of currently known Bryophryne to eight. One of the new species is the second known species of Bryophryne that has a tympanic annulus and tympanic membrane. Males of this species have vocal slits, a vocal sac, and call from inside moss. It is readily distinguished from all its congeners by having a blackish-brown venter with yellow, orange, or pale pink blotches. This species is found at elevations of 3800–3850 m in the puna along the road ...
Pigment Concentrations Among Heat-Tolerant Turfgrasses, 2009 University of Tennessee - Knoxville
Pigment Concentrations Among Heat-Tolerant Turfgrasses, Dean Kopsell, Mark Lefsrud, John Sorochan, J. Mcelroy
Dean A. Kopsell
Heat-tolerant bluegrass varieties were developed to resist dormancy and retain pigmentation during heat stress events. The objective of this study was to investigate the influence of grass species, nitrogen (N) fertilization, and seasonality on the accumulation patterns of lutein, β-carotene, and chlorophyll a and b in the leaf tissues of turfgrass. The heat-tolerant bluegrass cultivars Dura Blue and Thermal Blue (Poa pratensis L. x Poa arachnifera Torr.), Apollo kentucky bluegrass (Poa pratensis L.), and Kentucky 31 tall fescue (Festuca arundinacea Schreb.) were compared for the accumulation of plant pigments. Evaluations were conducted over 2 consecutive years (Years 4 and 5 ...
The Genome Of Geobacter Bemidjiensis, Exemplar For The Subsurface Clade Of Geobacter Species That Predominate In Fe(Iii)-Reducing Subsurface Enviorments, 2009 University of Massachusetts - Amherst
The Genome Of Geobacter Bemidjiensis, Exemplar For The Subsurface Clade Of Geobacter Species That Predominate In Fe(Iii)-Reducing Subsurface Enviorments, Derek Lovley, Muktak Aklujkar, Nealson Young, Dawn Holmes, Milind Chavan, Carla Risso, Hajnalka Kiss, Cliff Han, Miriam Land
BACKGROUND: Geobacter species in a phylogenetic cluster known as subsurface clade 1 are often the predominant microorganisms in subsurface environments in which Fe(III) reduction is the primary electron-accepting process. Geobacter bemidjiensis, a member of this clade, was isolated from hydrocarbon-contaminated subsurface sediments in Bemidji, Minnesota, and is closely related to Geobacter species found to be abundant at other subsurface sites. This study examines whether there are significant differences in the metabolism and physiology of G. bemidjiensis compared to non-subsurface Geobacter species. RESULTS: Annotation of the genome sequence of G. bemidjiensis indicates several differences in metabolism compared to previously sequenced ...
Efficacy Of Flazasulfuron For Control Of Annual Bluegrass (Poa Annua) And Perennial Ryegrass (Lolium Perenne) As Influenced By Nitrogen, 2009 University of Tennessee, Knoxville
Efficacy Of Flazasulfuron For Control Of Annual Bluegrass (Poa Annua) And Perennial Ryegrass (Lolium Perenne) As Influenced By Nitrogen, Jim Brosnan, Adam Thoms, Patrick Mccullough, Gregory Armel, Gregory Breeden, John Sorochan, Thomas Mueller
Certain sulfonylurea (SU) herbicides are used to remove overseeded cool-season species from bermudagrass. The effects of nitrogen (N) on the efficacy of a new SU herbicide, flazasulfuron, have not been determined. Field and laboratory studies were conducted in 2008 and 2009 evaluating the efficacy of flazasulfuron for control of overseeded perennial ryegrass contaminated with annual bluegrass. Flazasulfuron was applied at rates of 4.4, 8.8, and 17.5 g ha−1 alone, and in between sequential applications of N fertilizer at 73 kg N ha−1. N was granularly applied immediately prior to herbicide treatment and 4 wk later ...
Genetic Variation For Susceptibility To Storm-Induced Stem Breakage In Solidago Altissima: The Role Of Stem Height And Morphology, M. Wise, W. Abrahamson
Warren G. Abrahamson, II
While storms can have obvious ecological impacts on plants, plants’ potential to respond evolutionarily to selection for increased resistance to storm damage has received little study. We took advantage of a thunderstorm with strong wind and hail to examine genetic variation for resistance to stem breakage in the herbaceous perennial Solidago altissima. The storm broke the apex of nearly 10% of 1883 marked ramets in a common-garden plot containing 26 genets of S. altissima. Plant genets varied 20-fold in resistance to breakage. Stem height was strongly correlated with resistance to breakage, with taller stems being signiﬁcantly more susceptible. A stem ...
Differential Consumption Of Four Aphid Species By Four Lady Beetle Species, 2009 School of Biology and Ecology
Differential Consumption Of Four Aphid Species By Four Lady Beetle Species, Christy Finlayson, Andrei Alyokhin, Serena Gross, Erin Porter
The acceptability of four different aphid species Macrosiphum albifrons (Essig), Macrosiphum euphorbiae (Thomas), Macrosiphum pseudorosae Patch, and Myzus persicae (Sulzer) (Hemiptera: Aphididae), as prey for four lady beetle species, one native species Coccinella trifasciata L, and three non-native Coccinella septempunctata L, Harmonia axyridis Pallas, Propylea quatuordecimpunctata L (Coleoptera: Coccinellidae) were tested in the laboratory. The relative field abundance of adults of the same lady beetle species on host vegetation, Lupinus polyphyllus Lindley (Fabales: Fabaceae), Solanum tuberosum L (Solanales: Solanaceae), and Rosa multiflora Thunberg (Rosales: Rosaceae), both with and without aphids present was also observed. In the laboratory, H. axyridis generally ...
Is Evolutionary Biology Infected With Invalid Teleological Reasoning? Invited Review Essay Of John Reiss, Retiring Darwin’S Watchmaker., David Depew
David J Depew
No abstract provided.
Emerging Themes In The Ecology And Management Of North American Forests, 2009 Utah State University
Emerging Themes In The Ecology And Management Of North American Forests, Fred Baker
Frederick A. Baker
The 7th North American Forest Ecology Workshop, consisting of 149 presentations in 16 oral sessions and a poster session, reflected a broad range of topical areas currently under investigation in forest ecology and management. There was an overarching emphasis on the role of disturbance, both natural and anthropogenic, in the dynamics of forest ecosystems, and the recognition that legacies from past disturbances strongly influence future trajectories. Climate was invoked as a major driver of ecosystem change. An emphasis was placed on application of research findings for predicting system responses to changing forest management initiatives...
Echolocation Behavior Of Brazilian Free-Tailed Bats During Dense Emergence Flights, 2009 University of Tennessee, Knoxville
Echolocation Behavior Of Brazilian Free-Tailed Bats During Dense Emergence Flights, E. Gillam, N. Hristov, Gary Mccracken
Gary F. McCracken
Brazilian free-tailed bats (Tadarida brasiliensis) emerge from cave roosts in dense columns in which adjacent bats are separated by only small distances. We describe and quantify variation in the structure of echolocation calls produced by these emerging bats and determine if call structure changes in relation to the rate of emergence measured using thermal infrared imaging. We recorded emergence calls at 2 roosts, 1 housing approximately 200,000 bats and the other approximately 17,000 bats. We found that Brazilian free-tailed bats emit distinct frequency-modulated (FMstart) and constant frequency (CFstart) calls during emergence that are significantly different from echolocation calls ...
Understanding Stem Cell Research: Controversy And Promise, 2009 Providence College
Understanding Stem Cell Research: Controversy And Promise, Father Nicanor Austriaco
Rev. Nicanor Austriaco, O.P.
What are embryonic stem cells, why are they so exciting and yet controversial, and what can be done to move our society beyond the current moral and political impasse? To provide answers to these questions, we will begin with a basic introduction to the science behind stem cell research. We will then move to a description of the emerging field of regenerative medicine, the main reason why stem cell research has generated so much excitement in the scientific community. As we will see, the drive to develop stem cells for regenerative medicine has linked stem cell research with the controversy ...
Pathology In Practice. Ranavirus Infection., 2009 University of Tennessee, Knoxville
Pathology In Practice. Ranavirus Infection., M. Ruder, A. Allison, Debra Miller, M. Keel
Debra L Miller
No abstract provided.
Video: Body Languages: Choreographing Biology, 2009 Wesleyan University
Video: Body Languages: Choreographing Biology, Katja Kolcio
Katja Kolcio Ph.D.
Co-taught by professors Manju Hingorani and Katja Kolcio at Wesleyan University, this course was an introduction to human biology. From scientific and choreographic perspectives, students practiced movement awareness and learned basic principles of choreography, and applied these skills to the exploration of human biology. Manju Hingorani, Professor of Molecular Biology and Biochemistry Katja Kolcio, Associate Professor of Dance and Environmental Studies
The Genus Xerula, 2009 University of Tennessee, Knoxville
The Genus Xerula, Ronald Petersen, Karen Hughes
No abstract provided.
A Bird’S-Eye View On The Function Of Sleep, 2009 Kennesaw State University
A Bird’S-Eye View On The Function Of Sleep, Charles Amlaner, Niels Rattenborg
Charles J. Amlaner
Sleep has been detected in every animal that has been adequately studied (Cirelli & Tononi, 2008). The ubiquitous nature of sleep suggests that it evolved early in the course of evolution and therefore may serve a conserved function essential to all animals. This hypothesis forms the rationale behind the development of “simple” animal models of sleep (Allada & Siegel, 2008; Mignot, 2008). By studying sleep in animals such as the fruit ﬂy (Drosophila melanogaster), where the power of genetic techniques can be readily employed,we may gain insight into the initial (perhaps cellular) function of sleep, a function that may still be relevant to understanding sleep in humans. Indeed, recent studies have already demonstrated remarkable similarities between sleep in Drosophila and sleep in mammals (Hendricks, Finn, Panckeri, et al., 2000; Shaw, Cirelli, Greenspan, et al., 2000; reviewed in Cirelli & Bushey, 2008). Although the utility of studying sleep in“simple”animal models is undeniable, it is unlikely that this approach alone will tell the whole story, especially given that Drosophilado not exhibit brain states comparable to mammalian slow-wave sleep (SWS) and rapid eye-movement (REM) sleep (Cirelli, 2006; Cirelli & Bushey, 2008; Hendricks & Sehgal, 2004; Nitz, van Swinderen, Tononi, et al ...
The Biology Of Reality Testing - Implications For Cognitive Education, 2009 University of Tennessee - Knoxville
The Biology Of Reality Testing - Implications For Cognitive Education, Neil Greenberg
• This report explores the proposition that teaching effectiveness can be enhanced by accommodating the key differences between two complementary and deeply engrained modes of reality testing, each predominantly centered in different hemispheres of the brain. • (1) Correspondence involves “reality-testing” of a percept, the cerebral representation of an experience in the world. • (2) Coherence involves “textualizing”, that is, reality-testing of a percept by how easily it relates to previous and ongoing parallel and collateral experiences. • Confidence in the validity of any percept throughout development is related to the interplay of these key processes. • As organisms develop, the “reference base” of previous ...