Digital Commons Network^™

Review Of Silvia Federici Caliban And The Witch: Women,The Body And Primitive Accumulation (2005, Autonomedia,Nyc), Ann Fergusun

Wagadu: A Journal of Transnational Women's & Gender Studies

No abstract provided.

Why Intensive Agriculturalists Have Higher Fertility: A Household Energy Budget Approach, James L. Boone, Karen L. Kramer

Anthropology Faculty & Staff Publications

It is widely held that human population growth rates began to increase markedly after the Pleistocene/Holocene transition largely as a consequence of the adoption of agriculture and sedentism. A common explanation for this increase in growth rates has been that circumstances associated with food production and/or the accompanying decrease in mobility allowed for higher fertility rates, but over the past decade a number of empirical studies and simulation analyses have revealed that the relationship between mode of subsistence and fertility is more complex than had previously been realized.

Project Title: Sustainable Adaptations To Drought And Climate Variability In Agricultural Production Systems Across Nebraska, Cody L. Knutson, Michael J. Hayes, Robert K. Hitchcock, Jeffrey Peake, Martin Kleinschmit

National Drought Mitigation Center: Faculty Publications

Drought is a normal part of Nebraska’s climate. It is also the leading cause of monetary disaster loss in the United States. FEMA (1995) has estimated that U.S. drought losses average $6-8 billion dollars per year. A majority of these losses are incurred in the agricultural sector. Nebraska’s losses alone topped $1.2 billion in 2002 (AP 2003).
To enhance viable operations in this variable climate, many Nebraska farmers and ranchers have begun making the transition to agricultural practices that fall into the realm of sustainable agriculture. Sustainability has been increasingly stressed as essential for creating more resilient systems and reducing …

The Evolution Of Thought, Jennifer Vonk

Faculty Publications

No abstract provided.

Report, Economic Contributions Of The Florida State Fair Authority, June 2006, Usf Center For Economic Development Research

Center for Economic Development Research (CEDR) Collection

The purpose of the report is to quantify the Florida State Fair Authority's economic contribution to Hillsborough County, the Tampa Bay region, and the state of Florida.

Food Choice In Frugivorous Bats, June 2006, Lauren Riegler

Monteverde Institute: Tropical Ecology and Conservation

Frugivorous bats are important dispersers for many tropical plants and their conservation depends on furthering knowledge in their foraging behaviors and food preferences (Brosset et al. 1996). This study investigated a possible fruit preference of five frugivorous bat species (Carollia brevicauda, Artibeus lituratus, Artibeus jamaicensis, Artibeus toltecus and Platyrrhinus vittatus) found in Monteverde, Costa Rica among three wild fruit species (Solanum umbellatum, Solanum aphyodendron and Ficus pertusa) and two cultivated fruit species (Musa accuminata and Carica papaya). Fruits were presented to the bats in the Bat Jungle of Monteverde, where the foraging of bats can be closely observed. Artibeus toltecus …

Effects Of Weevil Parasitismo N A Cecropia-Azteca Mutualism, June 2006, Scott J. Edmundson

Monteverde Institute: Tropical Ecology and Conservation

Mutualisms, beneficial interactions between organisms, are complex and often involve many species. Parasites on mutualisms disrupt the energy exchange and recycling between the mutually benefited species. This experiment explores the mutualism between Cecropia obtusifolia and Azteca xanthacroa and the effects of a parasitic disruption. Levels of fitness were estimated for sapling C. obtusifolia by measuring Müllerian body production and leaf herbivory. In addition, fitness levels of ants were ascertained by using the number of ants actively patrolling the top four nodes of the sapling as an estimation of the colony number. Results demonstrated that the Müllerian body production rate is …

Use Of Pheromones To Enhance Foraging Efficiency In Atta Cephalotes, June 2006, Rachel Schiesher

Monteverde Institute: Tropical Ecology and Conservation

Atta (Formicidae: Myrmicinae) are important herbivores in the Neotropics, cutting between 12 and 17% of the vegetation there (Holldobler and Wilson 1990). Atta cephalotes uses pheromones to communicate and maximize efficiency during foraging. The presence and specificity of pheromones was studied on leaf segments, between trails in the same colony and between different colonies. All studies were completed at the Santuario Ecológico in Cerro Plano, Costa Rica. Leaves cut by ants were retrieved from the cache at a significantly faster rate than those cut by hand (p-value = <0.0001), suggesting pheromones were laid on the plant material. The leaves were also retrieved at a significantly faster rate when compared to leaves collected from ants on a different trail within the colony or from a different colony (p-value = 0.0386 and 0.0010 respectively). Individual ants also foraged at a significantly faster rate on their own trail when compared to when they were transferred to a different trail within the colony or to a trail of a different colony (both p-values = <0.0001). This suggests that the trail pheromones used for foraging are more complex and specifically recognized by workers on a certain trail. A higher specificity of pheromones may prove beneficial to the enhancement of worker specialization and colony foraging efficiency.

Memories Of Communism In Central And East Europe: New Work By Janaszek-Ivaničková, Modrzejewski And Sznajderman, Rév, And Spiewak, Agata Anna Lisiak

CLCWeb: Comparative Literature and Culture

No abstract provided.

The Zoonotic Potential Of Enterocytozoon Bieneusi In Thailand, Mathirut Mungthin, Ittisak Subrungruang, Saovanee Leelayoova

The Thai Journal of Veterinary Medicine

Enterocytozoon bieneusi is the most common microsporidia that causes disease in immunocompromised hosts, especially in AIDS patients. E. bieneusi has been reported in a wide range of animals, including domestic, wild and farm animals. Using molecular typing and phylogenetic analysis, the zoonotic potential of E. bieneusi to cause disease is indeed a threat. Transmission from animals to humans should be investigated and whether it occurs naturally, before we can address the whole subject of zoonotic transmission of E. bieneusi infection.

The Objective Structured Assessment Of Technical Skills And The Acgme Competencies, Carmen J. Sultana

Department of Obstetrics and Gynecology Faculty Papers

Objective structured assessments of technical skills (OSATS) are structured operating room or laboratory assessment of residents' surgical skills. They can be used to evaluate and teach both basic and complex skills to residents. The literature on their use is reviewed. Future use of virtual reality simulators is discussed.

Gateway Gardens Site Analysis, Chris Gage, Rory Renfro, Jessica Sarver, Ben Sturtz, Nicole Wolters

Master of Urban and Regional Planning Workshop Projects

The Gateway Gardens Site Analysis takes a comprehensive look at a largely-vacant land area in Portland’s Gateway District. Currently owned by the Oregon Department of Transportation (ODOT), the 38-acre site currently serves as right-of-way for surrounding freeways, namely Interstates 84 and 205.

The project team developed a sequential process for completing this report. To gain an understanding of the project site, the initial step consisted of identifying key historical events and land uses that formed the site into what it is today. The team then conducted an in-depth existing conditions analysis, covering a wide range of elements including natural and …

Library 2.0 Theory: Web 2.0 And Its Implications For Libraries, Jack M. Maness

University Libraries: Faculty Scholarship

This article posits a definition and theory for "Library 2.0". It suggests that recent thinking describing the changing Web as "Web 2.0" will have substantial implications for libraries, and recognizes that while these implications keep very close to the history and mission of libraries, they still necessitate a new paradigm for librarianship. The paper applies the theory and definition to the practice of librarianship, specifically addressing how Web 2.0 technologies such as synchronous messaging and streaming media, blogs, wikis, social networks, tagging, RSS feeds, and mashups might intimate changes in how libraries provide access to their collections and user support …

Clean-Water Land Use: Connecting Scale And Function, Craig Anthony Arnold

Pace Environmental Law Review

No abstract provided.

Water Quality And Land Use Regulation Under The Water Framework Directive, William Howarth

Pace Environmental Law Review

No abstract provided.

Is International Environmental Law Really Law?: An Analysis Of Application In Domestic Courts, Carl Bruch

Pace Environmental Law Review

No abstract provided.

Factors Influencing Soil Invertebrate Communities In Riparian Grasslands Of The Central Platte River Floodplain, Craig A. Davis, Jane E. Austin, Deborah A. Buhl

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

In the Platte River Valley of central Nebraska, USA, riparian grasslands (also known as wet meadows) have been severely impacted by a reduction in river flows, causing lower ground-water levels and altered seasonal hydroperiods. The potential impacts of these hydrologic changes, as well as the environmental factors that influence wet meadow soil invertebrate communities, are not well understood. An understanding of the ecological processes that influence these invertebrate communities is crucial for maintaining and restoring wet meadows along the Platte River. Our objectives were to describe the soil invertebrate community of wet meadows throughout the growing season and to examine …

Significance Of Heat-Stable And Heat-Labile Enterotoxins In Porcine Colibacillosis In An Additive Model For Pathogenicity Studies, Weiping Zhang, Emil M. Berberov, Jessica Freeling, D. He, Rodney A. Moxley, David H. Francis

School of Veterinary and Biomedical Sciences: Faculty Publications

Although heat-stable (ST) and heat-labile (LT) enterotoxins produced by enterotoxigenic Escherichia coli (ETEC) have been documented as important factors associated with diarrheal diseases, investigations assessing the contributions of individual enterotoxins to the pathogenesis of E. coli infection have been limited. To address the individual roles of enterotoxins in the diarrheal disease caused by K88-positive ETEC in young pigs, enterotoxin-positive and -negative isogenic E. coli strains were constructed by using pBR322 to clone and express LT and STb. Four strains, K88⁺ astA, K88⁺ astA/pBR322, K88⁺ astA STb⁺, and K88⁺ astA LT⁺, were constructed …

Quorum Sensing In Dimorphic Fungi: Farnesol And Beyond, Kenneth W. Nickerson, Audrey L. Atkin, Jacob M. Hornby

Papers in Microbiology

Production of farnesol by Candida albicans is the first quorum- sensing system discovered in a eukaryote (29). In C. albicans, accumulated farnesol affects both dimorphism (29, 50) and biofilm formation (62). Fungal dimorphism is defined (64) as an environmentally controlled reversible interconversion of morphology, particularly yeast and mycelial morphologies. Interest in this shift derives from the dimorphic character of many fungi that are pathogenic toward plants and animals (64). Numerous chemical and environmental parameters can shift the yeast-mycelium dimorphism, including temperature, pH, glucose levels, nitrogen source, carbon dioxide levels, transition metals, chelating agents, and inoculum size or initial cell …

The Impact Of Periodontal Infections On Systemic Diseases. An Update For Medical Practitioners, Sukumaran Anil, Hamdan S. Al-Ghamdi

Saudi Medical Journal

Oral health status is an integral component of a general health and well-being of an individual. Knowledge about the link between periodontal disease and systemic diseases are growing rapidly. Increasing evidence is available from many investigators to indicate periodontitis as a risk factor for cardiovascular diseases, diabetes mellitus, low birth weight infants and pulmonary diseases. Both epidemiologists and researchers in oral microbiology have contributed significantly to the new paradigm of periodontal disease. Although additional studies are needed to determine the mechanisms by which such associations exist; available research clearly demonstrates that oral diseases and conditions are not only markers for …

Effect Of Synthetic Cell-Binding Peptide On The Healing Of Cortical Segmental Bone Defects, Gokhan Cakmak, Selcuk Bolukbasi, Aykin Simsek, Ozlem Erdem, Guldal Yilmaz, Alpaslan Senkoylu

Saudi Medical Journal

OBJECTIVE: To determine the effect of inorganic bone matric/Pepgen P-15 (ABM/P-15) on the healing of a critical sized segmental defect in a rat radius using a radiological and histological grading system. METHODS: We carried out this study at the Research Laboratories, Gazi University School of Medicine in 2004. Critical sized segmental defects were created in the radius of 36 Wistar rats. Thirteen defects were filled with ABM/P-15 Flow (gel form), 12 defects were filled with ABM/P-15, and 11 defects were used as a control group. The rats were sacrified at the tenth week, and healing of the defects was evaluated …

The Comparative Investigation Of Left Ventricle Papillary Muscle Arteries In Different Species, Yakup Gumusalan, Davut Ozbag, Hilmi Ozden, Berna G. Saruhan, Ayda Demirant

Saudi Medical Journal

OBJECTIVE: To determine whether similar histologic findings exist in left ventricle papillary muscle arteries in different species and to elicit whether those animal hearts may be used as models for human heart in experimental studies related to papillary muscles. METHODS: We examined 360 samples taken from the tip, mid-portion and base of papillary muscles in 60 normal adult hearts (15 each from human, dog, sheep, goat). The samples were obtained from Dicle University and Kahramanmaras Sutcu Imam University, Turkey and the study was conducted in June-September 2004. Tissues were processed by routine histologic methods, stained with hematoxylin-eosin and van giesson, …

The Role Of Chromatic And Achromatic Signals For Fruit Detection By Birds, H. Martin Schaefer, Douglas J. Levey, Veronica Shaefer, Michael L. Avery

United States Department of Agriculture Wildlife Services: Staff Publications

Fruit color changes during ripening are typically viewed as an adaptation to increase signal efficacy to seed dispersers. Plants can increase signal efficacy by enhancing chromatic (wavelength related) and/or achromatic (intensity related) contrasts between fruit and background. To assess how these contrasts determine the detectability of fruit signals, we conducted 2 experiments with free-flying crows (Corvus ossifragus) under semi-natural conditions in a 2025 m2 aviary. Crows searched first for artificial red and black fruits and detected red fruits from a larger distance. Because artificial red fruits had higher chromatic and lower achromatic contrasts against foliage than artificial black …

Association Of Physical Activity With Hormone Receptor Status: The Shanghai Breast Cancer Study, Swann Arp Adams, Charles E. Matthews, James R. Hébert, Charity G. Moore, Joan E. Cunningham, Xiou-Oi Shu, Jeanette Fulton, Yutang Gao, Wei Zheng

Faculty Publications

Evidence exists that breast tumors differing by estrogen receptor (ER) and progesterone receptor (PR) status may be phenotypically distinct diseases resulting from dissimilar etiologic processes. Few studies have attempted to examine the association of physical activity with breast cancer subtype. Such research may prove instructive into the biological mechanisms of activity. Consequently, this investigation was designed to assess the relationship between physical activity and hormone receptor-defined breast cancers in a population of Asian women in which the distribution of receptor types differed from traditional Western populations. Participants, ages 25 to 64 years, were recruited into this population-based, case-control study of …

Computation Reuse In Statics And Dynamics Problems For Assemblies Of Rigid Bodies, Anne Loomis

Dartmouth College Master’s Theses

The problem of determining the forces among contacting rigid bodies is fundamental to many areas of robotics, including manipulation planning, control, and dynamic simulation. For example, consider the question of how to unstack an assembly, or how to find stable regions of a rubble pile. In considering problems of this type over discrete or continuous time, we often encounter a sequence of problems with similar substructure. The primary contribution of our work is the observation that in many cases, common physical structure can be exploited to solve a sequence of related problems more efficiently than if each problem were considered …

Lsuhsc Facilities Daily Update: June 2006, Lsuhsc Property And Facilities Management

LSUHSC Facilities Daily Updates: 2006

LSUHSC Dailly Facilities Updates from June 2006. These updates describe damage and a timeline of repairs at the LSU Health Sciences Center - New Orleans campus due to Hurricane Katrina which made landfall August 29, 2005.

The Prairie Naturalist, Volume 38, Number 2, June 2006, Elmer J. Finck, Hilary Gillock

The Prairie Naturalist

The Prairie Naturalist (June 2006) Volume 38, Issue 2, full issue.

Feeding Habitats of Spring-Migrating Blackbirds in East-central South Dakota, by Richard S. Sawin, George M. Linz, William J. Bleier, and H. Jeffrey Homan, pages 73-84.

Brood Break-up and Juvenile Dispersal of Lesser Prairie-chicken in Kansas, by James C. Pitman , Brent E. Jamison, Christian A. Hagen, Robert J. Robel, and Roger D. Applegate, pages 74-99.

Population Biology of Pumpkinseed in Enemy Swim Lake, South Dakota, by Eric J. Weimer and Michael L. Brown, pages 101-111.

Reproductive Development in the Sicklefin Chub in the Missouri and Lower Yellowstone Rivers, by …

Most Popular Downloads -- May 2006,

Institutional Repository Information

The 198 most often downloaded files from the UNL Digital Commons for May 2006. ALso includes statistics and graphs of total repository contents, hits, and downloads for the period July 1, 2005 through May 31, 2006.

Physical Defenses Against Herbivory In Gesneriaceae, June 2006, Meagan Turner

Monteverde Institute: Tropical Ecology and Conservation

I studied physical plant defenses in seven species within the family Gesneriaceae: Alloplectus tetragonus, Besleria princeps, Besleria solanoides, Besleria triflora, Columnea glabra, Columnea microcalyx, and Monopyle maxonii. The species display varying levels of pubescence and leaf toughness. The purpose here is to determine if these physical traits deter herbivores and decrease the amount of herbivory. Data were collected on plants growing along the Senderos Principal and División behind the Estación Biológica, and the Sendero Nuboso in the Monteverde Cloud Forest Reserve, Costa Rica, from April 16 to May 8, 2006. Twenty individuals from each species were sampled and the percent …

Attack Pheromone Response Among Colonies And Castes In The Leaf-Cutting Ant Atta Cephalotes, June 2006, Matthew Ward

Monteverde Institute: Tropical Ecology and Conservation

Attack pheromones in Atta cephalotes are important in coordinating defense responses to protect the colony. Little is known about the dynamics of A. cephalotes defenses and their underlying mechanisms (Whitehouse and Jaffe 1996). The objective of this study was to test for differences in response between four colonies and between the three classes of ant; minor, worker, and soldiers. Eight treatments were performed to carry out the two experiments. Toothpicks were coated with the attack pheromone from each of the four colonies and each of the three castes and one toothpick was tested without any pheromone as a control. Using …