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Articles 22471 - 22500 of 24568
Full-Text Articles in Social and Behavioral Sciences
An Annotated Checklist Of The Spiders Of Northwestern Iowa And The Loess Hills Of Western Iowa, Barbara J. Abraham
An Annotated Checklist Of The Spiders Of Northwestern Iowa And The Loess Hills Of Western Iowa, Barbara J. Abraham
Journal of the Iowa Academy of Science: JIAS
Spiders were collected by the author from various habitats in 16 counties of northwestern Iowa and the loess hills of western Iowa during the summers of 1985 and 1990-1992. Additional donated specimens from the same region in 1981and1989 were identified by the author. Twenty-three families, 92 genera and 184 species have been identified.
Environmental Racism And Biased Methods Of Risk Assessment, Daniel C. Wigley, Kristin S. Shrader-Frechette
Environmental Racism And Biased Methods Of Risk Assessment, Daniel C. Wigley, Kristin S. Shrader-Frechette
RISK: Health, Safety & Environment (1990-2002)
Based on analysis of a risk assessment for a proposed Louisiana uranium enrichment facility, the authors argue that environmental injustice occurs when assessors' scientific methods cause de facto discrimination.
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
The Natural History Of Aconitum Noveboracense Gray (Northern Monkshood), A Federally Threatened Species, Margaret A. Kuchenreuther
The Natural History Of Aconitum Noveboracense Gray (Northern Monkshood), A Federally Threatened Species, Margaret A. Kuchenreuther
Journal of the Iowa Academy of Science: JIAS
Aconitum noveboracense Gray (Ranunculaceae), commonly known as northern monkshood, is a federally threatened herbaceous perennial that occurs in disjunct populations in Iowa, Wisconsin, Ohio and New York. It appears to be a glacial relict, existing today only in unique areas with cool, moist microenvironments, such as algific talus slopes. Field studies reveal that A. noveboracense has a complex life history. Perennation of individual plants occurs through the annual production of daughter tubers. Vegetative reproduction is commonly observed, and can occur by means of aerial and subterranean bulbils, as well as by development of adventitious root buds. Populations also reproduce sexually …
Geochemistry Of Buried Midcontinent Rift Volcanic Rocks In Iowa: Data From Well Samples, Karl E. Seifert, Raymond R. Anderson
Geochemistry Of Buried Midcontinent Rift Volcanic Rocks In Iowa: Data From Well Samples, Karl E. Seifert, Raymond R. Anderson
Journal of the Iowa Academy of Science: JIAS
We analyzed welt cores and cuttings from deep wells into Precambrian igneous rocks from five separate pacts of the buried Midcontinent Rife System in Iowa for major and trace elements. A total of 21 samples, 9 cores and 12 cuttings, were analyzed for trace elements by instrumental neutron activation analysis (INAA) and 11 of these, 9 cores and 2 cuttings, were analyzed for major elements by inductively coupled plasma (ICP) analysis.
Pathogenicity Of Septoria Aquilina Isolated From Black Hills Bracken, A. Gabel, C. Salazar
Pathogenicity Of Septoria Aquilina Isolated From Black Hills Bracken, A. Gabel, C. Salazar
Journal of the Iowa Academy of Science: JIAS
Septoria aquilina, a pathogenic fungus isolated from Pteridium aquilinum growing in the Black Hills was studied from 1991-1995. S. aquilina sprayed at 8,000 conidia/ml on transplanted fronds followed by high humidity caused severe necrosis seven days after inoculation and disease severity increased until fronds died. Severe necrosis also developed from inoculations at 4,000 and 2,000 conidia/ml. Less severe symptoms developed from inoculations at 1,000 conidia/ml. Inoculations at 4,000 conidia/ml not followed by high humidity caused less necrosis than inoculations at the same concentration with high humidity. Inoculations at 4,000, 2,000, and 1,000 conidia/ml on fronds grown from spores caused similar …
Awards And Recognition, Iowa Academy Of Science, 1996
Awards And Recognition, Iowa Academy Of Science, 1996
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Index For Volume 103
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Semantic And Schematic Similarities Between Database Objects: A Context-Based Approach, Vipul Kashyap, Amit P. Sheth
Semantic And Schematic Similarities Between Database Objects: A Context-Based Approach, Vipul Kashyap, Amit P. Sheth
Kno.e.sis Publications
In a multidatabase system, schematic conflicts between two objects are usually of interest only when the objects have some semantic similarity. We use the concept of semantic proximity, which is essentially an abstraction/mapping between the domains of the two objects associated with the context of comparison. An explicit though partial context representation is proposed and the specificity relationship between contexts is defined. The contexts are organized as a meet semi-lattice and associated operations like the greatest lower bound are defined. The context of comparison and the type of abstractions used to relate the two objects form the basis of a …
Catastrophic Wave (Tsunami?) Transport Of Boulders In Southern New South Wales, Australia, R. W. Young, Edward A. Bryant, D. M. Price
Catastrophic Wave (Tsunami?) Transport Of Boulders In Southern New South Wales, Australia, R. W. Young, Edward A. Bryant, D. M. Price
Faculty of Science - Papers (Archive)
Deposits of large boulders above modern limits of storm waves along the coast of southern New South Wales record catastrophic wave action. The largest boulders that were moved weigh 80-90 tonnes, and the maximum height of wave action was 32 m. Hydraulic reconstruction indicates flow depths of 3.4 and perhaps > 4 m and velocities of 5.5 m/s to 10.3 m/s. Cavitation features on some rock surfaces support the estimates of maximum velocities. A remarkably limited range in the orientation of imbricated boulders along 150 km indicates that the deposits record a single event that approached from the SE. to SSE. …
Bald Eagles Wintering Along The Des Moines River, Iowa, Neil Sabine
Bald Eagles Wintering Along The Des Moines River, Iowa, Neil Sabine
Journal of the Iowa Academy of Science: JIAS
Distribution, habitat use, and foraging behavior of Bald Eagles (Haliaeetus leucocephalus) wintering in southeast Iowa were studied in January - March 1990 and November 1990 - March 1991. Eagles were seen from November through March with the highest numbers in January and February. Adults had shorter winter residence times than immatures and they appeared to be less active during the day. Eagles concentrated their foraging efforts along certain river segments where they fed exclusively on fish. Timber harvesting along the river reduced eagle use and is considered to be the most serious threat to sustaining eagle use of the area. …
Current Status Of The Plains Pocket Mouse, Perognathus Flavescens, In Iowa, Gregory M. Wilson, John B. Bowles, Justin W. Van Zee
Current Status Of The Plains Pocket Mouse, Perognathus Flavescens, In Iowa, Gregory M. Wilson, John B. Bowles, Justin W. Van Zee
Journal of the Iowa Academy of Science: JIAS
Published and unpublished accounts of the plains pocket mouse (Perognathus flavescens) were utilized to document the existence of extant populations and to summarize and report additional data about the biology of this state endangered Iowa species. Populations of P. flavescens exist in western (Harrison, Monona, and Plymouth counties) and extreme eastern (adjacent portions of Louisa and Muscatine counties) Iowa, the latter of which represents the eastern-most record for the species in North America. In addition, we document a new locality for P. flavescens from the interior of the state (Benton County). All known populations of P. flavescens in Iowa occur …
Editorial Board & Iowa Academy Of Science Officers And Directors
Editorial Board & Iowa Academy Of Science Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Book Review - The Unnatural Nature Of Science: Why Science Does Not Make (Common) Sense, David Lopatto
Book Review - The Unnatural Nature Of Science: Why Science Does Not Make (Common) Sense, David Lopatto
Journal of the Iowa Academy of Science: JIAS
A distinguished psychologist once wrote that if you wished to understand the history of scientific thought you need a psychologist at your elbow. Lewis Wolpert, Professor of Biology at University College in London, has taken that sentiment further. It seems that if you wish to understand the difference between scientific and nonscientific thinking you should delve deeply into the literature of cognitive psychology. For natural thinking, "ordinary, day-to-day common sense will never give an understanding about the nature of science." Instead, the trained scientist engages in unnatural (i.e., counterintuitive) thinking about a word that defies ordinary experience. In order to …
A Relationship Between River Modification And Species Richness Of Freshwater Turtles In Iowa, Terry J. Vandewalle, James L. Christiansen
A Relationship Between River Modification And Species Richness Of Freshwater Turtles In Iowa, Terry J. Vandewalle, James L. Christiansen
Journal of the Iowa Academy of Science: JIAS
Comparisons were made of turtle populations in Red Rock Reservoir and the major rivers of the Mississippi River and Missouri River damage systems in Iowa. Of the inland rivers of the Mississippi drainage examined in this study, the Des Moines River had the least amount of remaining turtle habitat. Number of turtle species ranged from five in the Des Moines River to 11 in the Mississippi River, but only three species were found in Red Rock Reservoir. In the Missouri drainage, number of turtle species ranged from three in both the Little Sioux and Nishnabotna rivers to five in the …
Life History And Status Classifications Of Birds Breeding In Iowa, Louis B. Best, Kathryn E. Freemark, Barbara S. Steiner, Timothy M. Bergin
Life History And Status Classifications Of Birds Breeding In Iowa, Louis B. Best, Kathryn E. Freemark, Barbara S. Steiner, Timothy M. Bergin
Journal of the Iowa Academy of Science: JIAS
Life history and status classifications were compiled for 145 bird species that breed in Iowa. Species were classified by food type and substrate, nest substrate, susceptibility to cowbird parasitism, migratory status, predominant habitat use and habitat-use specialization, body mass (an index of home range/territory size), area sensitivity, population trend and vulnerability, and beneficial/harmful aspects in relation to agriculture. Such information may be used to make interspecific comparisons, evaluate interrelationships among life history and status characteristics, and provide insights into the interpretation of previous research. This synthesis also can aid those responsible for making conservation and management decisions about Iowa's avifauna.
Book Review - This Fragile Land. A Natural History Of The Nebraska Sandhills, Neil P. Bernstein
Book Review - This Fragile Land. A Natural History Of The Nebraska Sandhills, Neil P. Bernstein
Journal of the Iowa Academy of Science: JIAS
Paul Johnsguard presents a highly enjoyable and readable introduction to the natural history of the Nebraska Sandhills in his "kind of love letter to the Nebraska Sandhills and especially to their inhabitants past and present." Johnsguard calls upon 30 years of research and teaching in the region to draw together a series of essays that cover geology, ecology, ethology, and environmental issues while offering his personal perspectives on the past, present and future.
Leaner Environmental Policies For Agriculture, David E. Ervin, Elisabeth A. Graffy
Leaner Environmental Policies For Agriculture, David E. Ervin, Elisabeth A. Graffy
Economics Faculty Publications and Presentations
Farmers and ranchers face a most troubling dilemma. Complex political forces have mapped two quite different paths to environmental management-a rollback of federal regulations or a buildup of traditional subsidies. In the words of a famous modern philosopher, "When you reach a fork in the road, take it!" But either choice poses risk for the industry and will not likely ameliorate nettlesome environmental problems. A third path could help the industry maintain competitiveness and meet environmental challenges. This path uses me latest science to identify agroenvironmental problems and emphasizes economically attractive technology to sustain environmental improvements.
The Economics Of Wind Power: The World, The United States, And At The College Of Saint Benedict/Saint John's University, Mason Vernon Sorenson
The Economics Of Wind Power: The World, The United States, And At The College Of Saint Benedict/Saint John's University, Mason Vernon Sorenson
Honors Theses, 1963-2015
No abstract provided.
Applying The Concept Of Recreational Specialization To Rhode Island Alliance Anglers, Eric Asadorian
Applying The Concept Of Recreational Specialization To Rhode Island Alliance Anglers, Eric Asadorian
Marine Affairs Theses and Major Papers
Many recreationally popular marine species of fish are at or near historic lows in terms of their overall numbers. Many of these species, such as cod, summer flounder, winter flounder, and bluefish, are also commercially valuable. Fishery managers must be able to make allocation and management decisions that both protect the resource and maintain user satisfaction. The basis for achieving this goal lies in the understanding of what the users expectations, satisfactions and perceptions are related to their marine recreational fishing experience. It is often the case that a population of anglers are managed as a homogeneous group, with similar …
Describing The Elephant: Multiple Perspectives In New York City's Watershed Protection Conflict, Krystyna Anne Stave
Describing The Elephant: Multiple Perspectives In New York City's Watershed Protection Conflict, Krystyna Anne Stave
Public Policy and Leadership Faculty Publications
New York City's efforts to avoid filtration mandated by the 1986 Safe Drinking Water Act Amendments and the 1989 Surface Water Treatment Rule have generated considerable controversy. Since the conflict began in 1990, a spectrum of stakeholder groups has emerged, representing land owners, sport fishermen, businesses, environmental groups, developers, and watershed communities. What was originally defined by New York City water supply managers as a scientific problem--identifying sources of water quality degradation and preventing contaminants from entering the water supply system--now has broadened to include a diverse set of social and economic issues as well.
Santa Clara Magazine, Volume 38 Number 1, Winter 1996, Santa Clara University
Santa Clara Magazine, Volume 38 Number 1, Winter 1996, Santa Clara University
Santa Clara Magazine
8 - GERALD UELMEN: BACK IN THE CLASSROOM The School of Law professor and co-counsel for the O.J. Simpson defense reflects on the "trial of the century" and assesses its impact on legal education. Interview by Elise Banducci '87
12 - MARRIED WITHOUT CHILDREN Childless couples challenge deeply held beliefs about marriage and family. By Kath1yn Bold '81
16 - PORTRAIT OF THE ARTIST Gerald Sullivan, S.J., answers the questions "Why figurative painting?" "Why liberal arts?" and "Why dogs?" By Miriam Schulman
20 - PASSPORT TO KNOWLEDGE Study abroad programs in Italy and around the world push beyond traditional borders. …
Relative Risk Assessment For Cape Hatteras National Seashore, John Cary Buie
Relative Risk Assessment For Cape Hatteras National Seashore, John Cary Buie
Dissertations, Theses, and Masters Projects
No abstract provided.
Field And Laboratory Evidence Of Pheromone Mediated Mating Behavior In The Blue Crab, Callinectes Sapidus, Donald S. Gibbs
Field And Laboratory Evidence Of Pheromone Mediated Mating Behavior In The Blue Crab, Callinectes Sapidus, Donald S. Gibbs
Dissertations, Theses, and Masters Projects
No abstract provided.
Land Use Planning For Agriculture And Sustainable Rural Development, Ian Kininmonth, Andrew Bathgate, Ross George, Dennis Van Gool
Land Use Planning For Agriculture And Sustainable Rural Development, Ian Kininmonth, Andrew Bathgate, Ross George, Dennis Van Gool
Journal of the Department of Agriculture, Western Australia, Series 4
An important goel for agriculture will be to achieve sustainable land use patterns and management systems.
Land use planning has a role to play in helping agticulture achieve this goal. Ian Kininmouth, Andrew Bathgate, Ross George and Dennis Van Gool discuss the directions land use planning could follow.
Resource Law Notes Newsletter, No. 36, Winter Issue, Jan. 1996, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes Newsletter, No. 36, Winter Issue, Jan. 1996, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)
No abstract provided.
A New Vision: U.S Travel And Tourism Industry, Greg Farmer
A New Vision: U.S Travel And Tourism Industry, Greg Farmer
Hospitality Review
Greg Farmer, U.S. Under Secretary of Commerce for Travel and Tourism, envisions a new proactive role for travel and tourism in the U.S. He has written this article especially for the FIU Hospitality Review.
Ribbons Of Blue, Martin Revell, Thelma Crook
Ribbons Of Blue, Martin Revell, Thelma Crook
Journal of the Department of Agriculture, Western Australia, Series 4
Ribbons of Blue is a water quality awareness program that involves schools and community groups in monitering local water bodies.
The concept originated in the Environmental Policy Planning section of the Office of Premier and Cabinet, in 1989. Martin Revell and Thelma cook outline the scope of the program and highlight some major achievements.