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2005

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Tritrophic Interaction Of Parasitoid Lysiphlebus Testaceipes (Hymenoptera: Aphidiidae), Greenbug, Schizaphis Graminum (Homoptera: Aphididae), And Greenbug-Resistant Sorghum Hybrids, Mahmut Dogramaci, Z. B. Mayo, Robert J. Wright, John C. Reese Feb 2005

Tritrophic Interaction Of Parasitoid Lysiphlebus Testaceipes (Hymenoptera: Aphidiidae), Greenbug, Schizaphis Graminum (Homoptera: Aphididae), And Greenbug-Resistant Sorghum Hybrids, Mahmut Dogramaci, Z. B. Mayo, Robert J. Wright, John C. Reese

Department of Entomology: Faculty Publications

Interactions of the parasitoid Lysiphlebus testaceipes (Cresson) and the greenbug, Schizaphis graminum (Rondani), on greenbug-resistant ‘Cargill 607E’ (antibiosis), ‘Cargill 797’ (primarily tolerance), and -susceptible ‘Golden Harvest 510B’ sorghum, Sorghum bicolor (L.) Moench, were tested using three levels of biotype I greenbug infestation. The parasitoid infestation rate was 0.5 female and 1.0 male L. testaceipes per plant. For all three greenbug infestation levels, the parasitoid brought the greenbug under control (i.e., prevented the greenbugs from killing the plants) on both resistant hybrids, but it did not prevent heavy leaf damage at the higher greenbug infestation rates. At the low greenbug infestation …

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Combating Wmd: Challenges For The Next 10 Years, Center For The Study Of Weapons Of Mass Destruction Feb 2005

Combating Wmd: Challenges For The Next 10 Years, Center For The Study Of Weapons Of Mass Destruction

Books and Book Chapters

One need only glance at newspaper headlines each morning to appreciate that the weapons of mass destruction (WMD) threat environment is dynamic. President George W. Bush has identified WMD in the hands of rogue states and terrorists as the greatest security threat to the United States. The pace of WMD events in recent years has been truly remarkable. Taking stock of what has occurred since the National Strategy to Combat Weapons of Mass Destruction was issued nearly 2 years ago, it is clear that combating WMD is a difficult but far from hopeless task. Important progress has been made, though …

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A Three-Component Regulatory System Regulates Biofilm Maturation And Type Iii Secretion In Pseudomonas Aeruginosa, Sherry L. Kuchma, John P. Connolly, George A. O'Toole Feb 2005

A Three-Component Regulatory System Regulates Biofilm Maturation And Type Iii Secretion In Pseudomonas Aeruginosa, Sherry L. Kuchma, John P. Connolly, George A. O'Toole

Dartmouth Scholarship

Biofilms are structured communities found associated with a wide range of surfaces. Here we report the identification of a three-component regulatory system required for biofilm maturation by Pseudomonas aeruginosa strain PA14. A transposon mutation that altered biofilm formation in a 96-well dish assay originally defined this locus, which is comprised of genes for a putative sensor histidine kinase and two response regulators and has been designated sadARS. Nonpolar mutations in any of the sadARS genes result in biofilms with an altered mature structure but do not confer defects in growth or early biofilm formation, swimming, or twitching motility. After …

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Research Strategies Of The National Wildlife Research Center To Control Bovine Tuberculosis In Wildlife In Michigan, Usa, A. R. Berentsen, M. R. Dunbar, R. G. Mclean Feb 2005

Research Strategies Of The National Wildlife Research Center To Control Bovine Tuberculosis In Wildlife In Michigan, Usa, A. R. Berentsen, M. R. Dunbar, R. G. Mclean

United States Department of Agriculture Wildlife Services: Staff Publications

Bovine tuberculosis (bTB) is a zoonotic disease caused by Mycobaterium bovis and is transmissible to humans, wildlife, and domestic livestock. In the United Kingdom, the suspected wildlife reservoir of bTB is the badger (Meles meles) (HUTCHINGS and HARRIS, 1 997), and in New Zealand, the culprit is the brush-tailed possum (Trichosurus vulpecula) (MORRIS et al., 1994). In northern Michigan, USA, bovine tuberculosis is endemic in white-tailed deer (Odocoileus virginianus). In 1975 a hunter-killed white-tailed deer in Alpena County, Michigan, USA, was tested positive for bTB. Subsequent surveillance by the Michigan Department of Natural Resources …

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Predicting Numbers Of Hauled-Out Harbour Seals: A Mathematical Model, James L. Hayward, Shandelle M. Henson, Clara J. Logan, Catherine R. Parris, Matthew W. Meyer, Brian Dennis Feb 2005

Predicting Numbers Of Hauled-Out Harbour Seals: A Mathematical Model, James L. Hayward, Shandelle M. Henson, Clara J. Logan, Catherine R. Parris, Matthew W. Meyer, Brian Dennis

Faculty Publications

1. It was once assumed that commercially important fish make up significant portions of seal diets. As a consequence, prior to the 1970s many seal populations were dramatically reduced by rampant slaughtering. Today, seals and other marine mammals are valued components of marine ecosystems and their numbers are carefully managed. To facilitate management, government statutes mandate the systematic monitoring of seal populations. Population estimates are based on counts of hauled-out seals obtained by aerial survey and radio and satellite telemetry; hence, considerable effort has been devoted to finding optimal times for such counts. We have developed a predictive mathematical model …

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Ponazuril Inhibits The Development Of Eimeria Vermiformis In Experimentally Infected Outbred Swiss Mice, S. A. Billeter, J. A. Spencer, Bill Chobotar, B. L. Blagburn Feb 2005

Ponazuril Inhibits The Development Of Eimeria Vermiformis In Experimentally Infected Outbred Swiss Mice, S. A. Billeter, J. A. Spencer, Bill Chobotar, B. L. Blagburn

Faculty Publications

We evaluated a 15% paste formulation of ponazuril in outbred Swiss mice that were experimentally infected with Eimeria vermiformis. Thirty, 8-week-old female mice (approximately 20 g) were placed in one group of 10 mice and one group of 20 mice. Mice in both groups were gavaged with approximately 5,000 sporulated oocysts of E. vermiformis on day 0. Mice in group 2 (n=10) were treated orally on days 3 and 4 with ponazuril (suspended in 30% propylene glycol) at the rate of 20 mg/kg. Mice in group 1 (n=20) were gavaged with a similar volume of 30% propylene glycol. Rates of …

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Adhesive Fragment Reattachment After Orthodontic Extrusion: A Case Report, S. Burcak Cengiz, Ilken Kocadereli, H. Cem Güngör, Nil Altay Feb 2005

Adhesive Fragment Reattachment After Orthodontic Extrusion: A Case Report, S. Burcak Cengiz, Ilken Kocadereli, H. Cem Güngör, Nil Altay

School of Dentistry Faculty Research and Publications

In the treatment of crown fractures, adhesive fragment reattachment provides a good alternative to other restorative techniques, offering several advantages. The present paper reports a case in which the treatment of a cervical crown fracture was accomplished by reattaching the tooth fragment with a flowable resin composite. Orthodontic root extrusion was performed with a modified Hawley appliance prior to fragment reattachment. The clinical and radiographic results after 2.5 years were successful.

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Independent Inventors And Innovation: An Empirical Study, Cynthia W. Weick, Cynthia F. Eakin Feb 2005

Independent Inventors And Innovation: An Empirical Study, Cynthia W. Weick, Cynthia F. Eakin

Eberhardt School of Business Faculty Articles

Independent inventors have generally been overlooked in research on innovation. This study helps fill the knowledge gap. A survey of independent inventors in the USA showed that their inventions tended towards hardware/tool, household products, industrial/commercial products, novelty items and toys/games/hobbies. Thirty-nine per cent of the respondents generated sales from their inventions and approximately 20% profited from them. Inventors who established a company to commercialize their inventions were most likely to achieve sales. However, inventors who licensed their inventions were more likely to achieve higher sales levels than those who commercialized them only via their own company, or by selling their …

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Adolescents Growing Up In Stressful Environments, Dual Diagnosis, And Sources Of Success, Albert R. Roberts, Kevin Corcoran Feb 2005

Adolescents Growing Up In Stressful Environments, Dual Diagnosis, And Sources Of Success, Albert R. Roberts, Kevin Corcoran

School of Social Work Faculty Publications and Presentations

This article considers the social and psychological challenges to youth in contemporary society. The authors examine the variety of social impediments that face youths in most of our social institutions, from schools and the juvenile justice system to the family. They underscore the need for prevention, health promotion, and comprehensive assessment. Further, they assert that ‘‘dual diagnosis’’ needs to be considered not as a ‘‘special population’’ but as the typical or common experience of at-risk youths once they are diagnosed at mental health centers or juvenile justice reception and diagnostic centers. They conclude that evidence-based assessment, intervention, prevention, and health …

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Modulation Of Human Herpesvirus 8/Kaposi’S Sarcoma-Associated Herpesvirus Replication And Transcription Activator Transactivation By Interferon Regulatory Factor 7, Jinzhang Wang, Jun Zhang, William Harrington Jr., John T. West, Charles Wood Feb 2005

Modulation Of Human Herpesvirus 8/Kaposi’S Sarcoma-Associated Herpesvirus Replication And Transcription Activator Transactivation By Interferon Regulatory Factor 7, Jinzhang Wang, Jun Zhang, William Harrington Jr., John T. West, Charles Wood

Nebraska Center for Virology: Faculty Publications

Human herpesvirus 8 (HHV-8)/Kaposi’s sarcoma-associated herpesvirus infection goes through lytic and latent phases that are regulated by viral gene products, but very little is known about the involvement of host proteins. The replication and transcription activator (RTA) is a viral protein sufficient to initiate lytic replication by activating downstream genes, including the viral early gene open reading frame 57 (ORF 57), which codes for a posttranscriptional activator. In this study, we demonstrate that cellular interferon regulatory factor 7 (IRF-7) negatively regulates this process by competing with RTA for binding to the RTA response element in the ORF 57 promoter to …

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Human Dendritic Cells Transduced With Herpes Simplex Virus Amplicons Encoding Human Immunodeficiency Virus Type 1 (Hiv-1) Gp120 Elicit Adaptive Immune Responses From Human Cells Engrafted Into Nod/Scid Mice And Confer Partial Protection Against Hiv-1 Challenge, Santhi Gorantla, Kathlyn Santos, Vakara Meyer, Stephen Dewhurst, William J. Bowers, Howard J. Federoff, Howard Gendelman, Larisa Poluektova Feb 2005

Human Dendritic Cells Transduced With Herpes Simplex Virus Amplicons Encoding Human Immunodeficiency Virus Type 1 (Hiv-1) Gp120 Elicit Adaptive Immune Responses From Human Cells Engrafted Into Nod/Scid Mice And Confer Partial Protection Against Hiv-1 Challenge, Santhi Gorantla, Kathlyn Santos, Vakara Meyer, Stephen Dewhurst, William J. Bowers, Howard J. Federoff, Howard Gendelman, Larisa Poluektova

Nebraska Center for Virology: Faculty Publications

Small-animal models are needed to test human immunodeficiency virus (HIV) vaccine efficacy following viral challenge. To this end, we examined HIV-1-specific immune responses following immunization of nonobese diabetic-severe combined immunodeficient mice that were repopulated with human peripheral blood lymphocytes (hu-PBL-NOD/SCID mice). Autologous dendritic cells (DC) were transduced ex vivo with replicationdefective, helper virus-free, herpes simplex virus type 1 (HSV-1) amplicons that expressed HIV-1 gp120 and were then injected into the hu-PBL-NOD/SCID mice. This resulted in primary HIV-1-specific humoral and cellular immune responses. Serum samples from vaccinated animals contained human immunoglobulin G that reacted with HIV-1 Env proteins by enzyme-linked immunosorbent …

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Peptide 15-Mers Of Defined Sequence That Substitute For Random Amino Acid Copolymers In Amelioration Of Experimental Autoimmune Encephalomyelitis, Joel N.H. Stern, Zsolt Illés, Jay Reddy, Derin B. Keskin, Masha Fridkis-Hareli, Vijay K. Kuchroo, Jack L. Strominger Feb 2005

Peptide 15-Mers Of Defined Sequence That Substitute For Random Amino Acid Copolymers In Amelioration Of Experimental Autoimmune Encephalomyelitis, Joel N.H. Stern, Zsolt Illés, Jay Reddy, Derin B. Keskin, Masha Fridkis-Hareli, Vijay K. Kuchroo, Jack L. Strominger

Jay Reddy Publications

Myelin basic protein (MBP) is a major candidate autoantigen in multiple sclerosis (MS). Its immunodominant epitope, MBP 85–99, forms a complex with human leukocyte antigen (HLA)-DR2 with which multiple sclerosis is genetically associated. Copolymer 1 (Copaxone), a random amino acid copolymer [poly (Y,E,A,K)n] as well as two modified synthetic copolymers [poly (F,Y,A,K)n and poly (V,W,A,K)n] also form complexes with HLA-DR2 (DRA DRB1*1501) and compete with MBP 85–99 for binding. Moreover, two high-affinity synthetic peptide 15-mers that could inhibit binding even more effectively were previously designed. Here, we show that further-modified peptide 15-mers inhibited even more strongly (in order J5 > J3 …

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The Fine-Grained Spatial Abilities Of Three Seed-Caching Corvids, Brett M. Gibson, Alan Kamil Feb 2005

The Fine-Grained Spatial Abilities Of Three Seed-Caching Corvids, Brett M. Gibson, Alan Kamil

Papers in Behavior in Biological Sciences

We used a psychophysical method to examine the ability of three corvid species to discern fine-grained spatial information. Nutcrackers, pinyon jays, and scrub-jays were required to discriminate the distance between two landmarks on a computer screen in an operant chamber. All three species were able to discriminate between arrays that differed by 20 mm; the discrimination gradients for scrub-jays and pinyon jays were sharper than those for nutcrackers, however. The results suggest that differences in spatial memory among these species are not related to differences in fine-grained perception.

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Demographic And Evolutionary Impacts Of Native And Invasive Insect Herbivores On Cirsium Canescens, Karen E. Rose, Svata M. Louda, Mark Rees Feb 2005

Demographic And Evolutionary Impacts Of Native And Invasive Insect Herbivores On Cirsium Canescens, Karen E. Rose, Svata M. Louda, Mark Rees

School of Biological Sciences: Faculty Publications

Invasive species have the potential to alter trade-offs leading to selection in the populations they invade. Here we quantify the demographic and selective effects of herbivory by native insects and the introduced floral feeder Rhinocyllus conicus on Platte thistle (Cirsium canescens), a sparse monocarpic thistle endemic to North America. Rhinocyllus first invaded the Platte thistle population in 1993. Since then, its numbers have increased exponentially, while the Platte thistle population size has decreased. Data from 11 years were analyzed to determine how demographic rates varied with plant size and damage by native insects and Rhinocyllus. Individual growth, …

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The Effect Of Dietary Supplementation Of N-Acetyl-L-Cysteine On Glutathione Concentration And Lipid Peroxidation In Cigarette Smoke-Exposed Rats Fed A Low-Protein Diet, Adel A. Alhamdan Feb 2005

The Effect Of Dietary Supplementation Of N-Acetyl-L-Cysteine On Glutathione Concentration And Lipid Peroxidation In Cigarette Smoke-Exposed Rats Fed A Low-Protein Diet, Adel A. Alhamdan

Saudi Medical Journal

OBJECTIVE: The aim of the study is to investigate the modulatory effects of dietary supplementation of N-acetyl-L-cysteine (NAC) on glutathione (GSH) concentration in liver and lung, and lipid peroxidation in cigarette smoke-exposed rats fed a low-protein diet. METHODS: Rats were divided randomly into 4 dietary groups; 8 per group. The control group (Group 1) was fed a normal-protein diet and received room air as a sham-smoke exposure. Group 2 was fed a normal-protein diet, Group 3 was fed with a low-protein diet and Group 4 was fed with a low-protein diet supplemented with NAC, and exposed to the smoke of …

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Adolescent Reproductive Health And Gender Role Attitudes In Oman, Yasmin A. Jaffer, Mustafa M. Afifi Feb 2005

Adolescent Reproductive Health And Gender Role Attitudes In Oman, Yasmin A. Jaffer, Mustafa M. Afifi

Saudi Medical Journal

OBJECTIVE: The aim of the study was to investigate the attitudes of Omani adolescents towards the different gender roles and women empowerment with regard to taking household decisions, and to study how they influenced the adolescents9 knowledge and attitudes towards some reproductive health issues in a national representative secondary schools-based sample of 1670 boys and 1675 girls. METHODS: In 2001, through a self administrated questionnaire the adolescents answered 2 indices; adolescents Attitudes Toward Gender Roles (ATGR) and adolescents Attitudes Toward Women Empowerment (ATWE) in addition to answering questions on demographic data, environmental factors, and questions assessing their knowledge and attitudes …

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Nodular Lymphocyte Predominant Hodgkin's Lymphoma, Neelam Siddiqui, Abdulrahman I. Al-Diab Feb 2005

Nodular Lymphocyte Predominant Hodgkin's Lymphoma, Neelam Siddiqui, Abdulrahman I. Al-Diab

Saudi Medical Journal

OBJECTIVE: To describe the clinicopathological features, treatment, treatment outcome and sequelae of patients with nodular lymphocyte predominant Hodgkin9s lymphoma (NLPHL) in a Saudi population. METHODS: This is a retrospective review of 29 patients with lymphocyte predominant Hodgkin9s lymphoma treated at 2 major hospitals (King Khalid University Hospital and Security Forces Hospital) in Riyadh, Kingdom of Saudi Arabia from 1985 to 2000. Histological subtypes were confirmed by review of hematoxylin and eosin paraffin sections and immunochemistry. Details of clinical presentation, stage, treatment and results of treatment were analyzed. RESULTS: On pathological reappraisal of the 29 cases, 3 patients had nodular sclerosis …

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Bcl-2 Gene Rearrangement In Jordanian Follicular And Diffuse Large B-Cell Lymphomas, Nidal M. Almasri, Jamil Al-Alami, Mohammad Faza Feb 2005

Bcl-2 Gene Rearrangement In Jordanian Follicular And Diffuse Large B-Cell Lymphomas, Nidal M. Almasri, Jamil Al-Alami, Mohammad Faza

Saudi Medical Journal

OBJECTIVE: Follicular lymphoma (FL), a common subtype of non-Hodgkin9s lymphoma (NHL) in the West, represents a rare subtype in Jordan. Bcl-2 gene rearrangement plays a crucial role in the biology of the vast majority of FL and a substantial number of diffuse large B-cell lymphoma (DLBCL) in the West; but its presence has not been studied in Jordan. Our aims are to document if bcl-2 gene rearrangement exists in Jordanian FL and DLBCL, and if present to determine whether its frequency among these lymphomas is different from the West and therefore may be responsible for some of the epidemiological differences …

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Epidemiology Of Antibody To Hepatitis B Core Antigen Screening Among Blood Donors In Eastern Saudi Arabia . Need To Replace The Test By Hbv Dna Testing, Bodh R. Panhotra, Ahmed Al-Bahrani, Zahoor Ul-Hassan Feb 2005

Epidemiology Of Antibody To Hepatitis B Core Antigen Screening Among Blood Donors In Eastern Saudi Arabia . Need To Replace The Test By Hbv Dna Testing, Bodh R. Panhotra, Ahmed Al-Bahrani, Zahoor Ul-Hassan

Saudi Medical Journal

OBJECTIVE: Prevention of the residual risk of transfusion transmitted hepatitis B virus (HBV) infection is mostly relied on serological screening of blood donors for antibody to hepatitis B core antigen (HBc), to detect donors in window period of HBV infection. This study was carried out to determine the prevalence of anti-HBc antibody among blood donors and its impact on rejection of collected blood units. METHODS: Blood bank records of all the blood donors who donated blood at blood bank of King Fahad Hospital, Al-Hofuf, Kingdom of Saudi Arabia, during the period of 2000 to 2003 were reviewed. All the collected …

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Progressive Pigmentary Purpura Related To Raloxifene, Zulal Erbagci, Almila Tuncel, Suna Erkilic, Mehtap Ozkur Feb 2005

Progressive Pigmentary Purpura Related To Raloxifene, Zulal Erbagci, Almila Tuncel, Suna Erkilic, Mehtap Ozkur

Saudi Medical Journal

Progressive pigmentary purpura is a rare condition characterized by lymphocytic capillaritis histologically causing various clinical entities which are also named as persistent pigmented purpuric dermatoses. It is generally idiopathic; however, rare cases secondary to drugs and various diseases have been reported. In this report we describe a case of progressive pigmentary purpura induced by raloxifene, a selective estrogen receptor modulator which is primarily used in the treatment and prevention of postmenopausal osteoporosis. As far as we know, no case of progressive pigmentary purpura has previously been reported as an adverse effect of raloxifene.

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Warfarin Resistance In A Patient With Mechanical Valve Prosthesis, Hikmat N. Abdel-Razeq, Ali A. Bajouda, Manar M. Khalil, Hassan Chamsi-Pasha Feb 2005

Warfarin Resistance In A Patient With Mechanical Valve Prosthesis, Hikmat N. Abdel-Razeq, Ali A. Bajouda, Manar M. Khalil, Hassan Chamsi-Pasha

Saudi Medical Journal

No abstract provided.

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Atomic Force Microscopy Investigation Of Virus Aggregation And Assembly At Chemical Templates Formed By Scanned Probe Nanolithography, Chin Li Cheung, S. -W. Chung, J. J. De Yoreo, A. Chatterji, T. Lin, J. E. Johnson Feb 2005

Atomic Force Microscopy Investigation Of Virus Aggregation And Assembly At Chemical Templates Formed By Scanned Probe Nanolithography, Chin Li Cheung, S. -W. Chung, J. J. De Yoreo, A. Chatterji, T. Lin, J. E. Johnson

Barry Chin Li Cheung Publications

Aggregation and assembly of macromolecules are important processes in a number of scientific fields including structural biology, medicine, and materials science. For example, growth of well-ordered two-dimensional (2-D) arrays and bulk crystals remains the rate-limiting step in macromolecular structure determination. Uncontrolled aggregation of proteins is the source of a number of devastating pathologies such as Creutzfeldt-Jakob syndrome. Moreover, the demonstrated ability of engineered viruses and proteins to act as templates for growth of inorganic nanostructures is driving a need for methods to deterministically pattern their assembly at surfaces in order to fabricate hierarchical materials and devices.

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Innovative Solutions To Human–Wildlife Conflicts Feb 2005

Innovative Solutions To Human–Wildlife Conflicts

United States Department of Agriculture Wildlife Services: Staff Publications

The mission of the U.S. Department of Agriculture’s (USDA) Wildlife Services (WS) Program is to provide Federal leadership in managing problems caused by wildlife. The National Wildlife Research Center (NWRC) functions as the research arm of WS by providing scientific information on the development of socially acceptable methods for wildlife damage management. As part of WS’ strategic plan to improve the coexistence of people and wildlife, NWRC has identified four strategic program goals: (1) developing methods, (2) providing wildlife services, (3) valuing and investing in people, and (4) enhancing information and communication. WS is dedicated to helping meet the wildlife …

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Bolivian Ectoparasites: A New Species Of Laelapine Mite (Acari: Parasitiformes, Laelapidae) From The Rodent Neacomys Spinosus, Donald Gettinger, Scott Lyell Gardner Feb 2005

Bolivian Ectoparasites: A New Species Of Laelapine Mite (Acari: Parasitiformes, Laelapidae) From The Rodent Neacomys Spinosus, Donald Gettinger, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Laelaps neacomydis n. sp. is described from the pelage of the rodent Neacomys spinosus collected in Bolivia. Collection records from northern Brazil, southeastern Peru, and central Bolivia indicate its wide distribution across Amazonas associated with rodents of the genus Neacomys. The formal taxonomic description and illustrations are derived from the adults (female and male). Two larger species of laelapine mites, Gigantolaelaps intermedius and L. boultoni, infest the same hosts at the same localities.

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Association Between Dietary Carbohydrates And Body Weight, Yunsheng Ma, Barbara Olendzki, David Chiriboga, James R. Hébert, Youfu Li, Wenjun Li, Mary Jane Campbell, Katherine Gendreau, Ira S. Ockene Feb 2005

Association Between Dietary Carbohydrates And Body Weight, Yunsheng Ma, Barbara Olendzki, David Chiriboga, James R. Hébert, Youfu Li, Wenjun Li, Mary Jane Campbell, Katherine Gendreau, Ira S. Ockene

Faculty Publications

The role of dietary carbohydrates in weight loss has received considerable attention in light of the current obesity epidemic. The authors investigated the association of body mass index (weight (kg)/height (m)2) with dietary intake of carbohydrates and with measures of the induced glycemic response, using data from an observational study of 572 healthy adults in central Massachusetts. Anthropometric measurements, 7-day dietary recalls, and physical activity recalls were collected quarterly from each subject throughout a 1-year study period. Data were collected between 1994 and 1998. Longitudinal analyses were conducted, and results were adjusted for other factors related to body …

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Bloodroot Pollination: Bet-Hedging In Uncertain Times, W. John Hayden Feb 2005

Bloodroot Pollination: Bet-Hedging In Uncertain Times, W. John Hayden

Biology Faculty Publications

“Hurry up and wait.” The phrase that epitomizes life in the military or any other large, bureaucratic, organization, applies surprisingly well to bloodroot and similar ephemeral wildflowers. Each year these plants race to flower as early as possible to assure sufficient time for fruits to ripen and seeds to mature while sunshine is abundant at the forest floor, for all too soon the forest floor will be draped in shadows cast by the trees’ leafy canopy. Ephemerals do everything quickly: sprout, grow, flower, disperse seeds, and re-enter dormancy. But flowering in very early spring can be risky. Some days will …

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02-01-05 (The Liberty Champion, Volume 22, Issue 12) Feb 2005

02-01-05 (The Liberty Champion, Volume 22, Issue 12)

2004 -- 2005

No abstract provided.

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Complexity Theory, Adaptation, And Administrative Law, Donald T. Hornstein Feb 2005

Complexity Theory, Adaptation, And Administrative Law, Donald T. Hornstein

Duke Law Journal

Recently, commentators have applied insights from complexity theory to legal analysis generally and to administrative law in particular. This Article focuses on one of the central problems that complexity. theory addresses, the importance and mechanisms of adaptation within complex systems. In Part I, the Article uses three features of complex adaptive systems-emergence from self-assembly, nonlinearity, and sensitivity to initial conditions-and explores the extent to which they may add value as a matter of positive analysis to the understanding of change within legal systems. In Part H, the Article focuses on three normative claims in public law scholarship that depend explicitly …

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Nothing Besides Remains: Preserving The Scientific And Cultural Value Of Paleontological Resources In The United States, Alexa Z. Chew Feb 2005

Nothing Besides Remains: Preserving The Scientific And Cultural Value Of Paleontological Resources In The United States, Alexa Z. Chew

Duke Law Journal

No abstract provided.

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Indigenous Lands As Cultural Property: A New Approach To Indigenous Land Claims, Lindsey L. Wiersma Feb 2005

Indigenous Lands As Cultural Property: A New Approach To Indigenous Land Claims, Lindsey L. Wiersma

Duke Law Journal

No abstract provided.

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