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Full-Text Articles in Entire DC Network
Personal Data Collection Via The Internet: The Role Of Privacy Sensitivity And Technology Trust, Susan K. Lippert, Paul Michael Swiercz
Personal Data Collection Via The Internet: The Role Of Privacy Sensitivity And Technology Trust, Susan K. Lippert, Paul Michael Swiercz
Journal of International Technology and Information Management
Policy makers and researchers from a wide range of perspectives have expressed concern about the interplay between privacy rights and information exchanges via the Internet. Of particular interest has been the challenge of protecting sensitive personal information. In this paper, we assert that user willingness to share sensitive data is an area of critical concern and requires additional investigation. In an effort to enrich the dialogue on the question of voluntary sharing of sensitive personal data via the Internet, we present a model showcasing the relationship between personal data sharing, privacy sensitivity, and technology trust and discuss how organizations can …
Integrating It-Enabled Social Networks With Transaction Cost Economics And The Resource Based View Of The Firm, Ganesh D. Bhatt, Jatinder N. D. Gupta, Sushil K. Sharma
Integrating It-Enabled Social Networks With Transaction Cost Economics And The Resource Based View Of The Firm, Ganesh D. Bhatt, Jatinder N. D. Gupta, Sushil K. Sharma
Journal of International Technology and Information Management
Prior research has mostly focused on transaction cost economics (TCE) to interpret the effect of information systems (IS) on organizational governance structures. A TCE based approach predicts that information technology (IT) will lead to increased use of electronic markets to coordinate economic transactions from electronic hierarchies. However, there is contradictory evidence in the literature regarding the rise and importance of cooperative relationships, joint ventures, and value-added partnerships integrated through information systems. To reconcile these contradictions, this paper analyzes the effect of IT on governance structures based on the TCE, social network theory, and the resource based view (RBV) of the …
In Search Of Factors To Online Game Addiction And Its Implications, Yangil Park, Jeng-Chung V. Chen
In Search Of Factors To Online Game Addiction And Its Implications, Yangil Park, Jeng-Chung V. Chen
Journal of International Technology and Information Management
Research has explored online users who are hooked on Internet applications such as chat rooms, web surfing, and interactive games. Online game addiction is one of the problems arisen from the use of the Internet. This study is motivated by a causal connection found from previous research of computer game addiction. The study describes two typical types of online games and looks further into the causes of the addiction by using two main theories. We also propose research hypotheses and discuss possible implications of online game addiction.
Project Management Practices In The Information Technology Departments Of Various Size Institutions Of Higher Education, Charles R. Johnston, David C. Wierschem
Project Management Practices In The Information Technology Departments Of Various Size Institutions Of Higher Education, Charles R. Johnston, David C. Wierschem
Journal of International Technology and Information Management
The demand for information technology at institutions of higher education is increasing at a rapid pace. It is fueled by student, faculty, and administrative needs. This paper examines project management practices at these institutions with respect to the sizes of the institutions. Survey results indicate an emphasis on operational concerns at small and medium size institutions when selecting IT projects. The prominence of the role of project manager and adoption of formal PM tools/techniques by IT departments generally increase with the sizes of the institutions. The importance of having a project plan is recognized by all sizes of institutions of …
Development Of A Maintenance System Based On Web And Mobile Technologies, Jaime Campos, Erkki Jantunen, Om Prakash
Development Of A Maintenance System Based On Web And Mobile Technologies, Jaime Campos, Erkki Jantunen, Om Prakash
Journal of International Technology and Information Management
The paper reports the development of an e-monitoring and maintenance system based on web technology and mobile device, PDA. Rarity of experts led to the application of artificial intelligence and later, distributed artificial intelligence for condition monitoring and diagnosis of machine condition. Recently, web technology along with wireless communication is emerging as a potent tool in maintenance. It facilitates obtaining of the desired information by the relevant personnel at any time wherever he may be. The paper first describes the web and mobile architecture that formed the basis of the system and ICT tools used to communicate among the different …
Fostering The Development Of Vocabulary Knowledge And Reading Comprehension Though Contextually-Based Multiple Meaning Vocabulary Instruction, J. Ron Nelson, Scott A. Stage
Fostering The Development Of Vocabulary Knowledge And Reading Comprehension Though Contextually-Based Multiple Meaning Vocabulary Instruction, J. Ron Nelson, Scott A. Stage
Department of Special Education and Communication Disorders: Faculty Publications
The primary purpose of this study was to assess the effects of contextually-based multiple meaning (i.e., words with multiple meanings) vocabulary instruction on the vocabulary knowledge and reading comprehension of students. Third and 5th grade students received either contextually-based multiple meaning vocabulary instruction embedded in the standard language arts instruction offered to all students over a three-month period or the standard language arts instruction alone (i.e., non-specific treatment). Students who received the contextually-based multiple meaning instruction generally showed statistically and educationally significant gains in their vocabulary knowledge and reading comprehension relative to students who did not. These gains were most …
Grânulos De Amido E Fitólitos Em Cálculos Dentários Humanos: Contribuição Ao Estudo Do Modo De Vida E Subsistência De Grupos Sambaquianos Do Litoral Sul Do Brasil, Verônica Wesolowski, Sheila Maria Ferraz Mendonça De Souza, Karl Reinhard, Gregório Ceccantini
Grânulos De Amido E Fitólitos Em Cálculos Dentários Humanos: Contribuição Ao Estudo Do Modo De Vida E Subsistência De Grupos Sambaquianos Do Litoral Sul Do Brasil, Verônica Wesolowski, Sheila Maria Ferraz Mendonça De Souza, Karl Reinhard, Gregório Ceccantini
Karl Reinhard Publications
Este artigo tem por objetivo apresentar os resultados da recuperação e análise de micro-vestígios vegetais retidos em cálculos dentários de grupos de pescadores-coletores do litoral sul do Brasil. Apresenta também os resultados das relações mantidas entre grânulos de amido e cárie, e entre fitólitos e desgaste dentário.
Através da dissolução química de cálculos dentários foram recuperados microvestígios vegetais em todos os indivíduos estudados. Foi evidenciado o consumo de alimentos amiláceos em todas as séries esqueléticas estudadas, demonstrando independência entre dieta com aporte de produtos vegetais e utilização de cerâmica. Foram encontrados resultados sugestivos de padrões de escolha de alimentos diferenciados …
How Will Global Climate Change Affect Parasite-Host Assemblages?, Eric P. Hoberg, Daniel R. Brooks
How Will Global Climate Change Affect Parasite-Host Assemblages?, Eric P. Hoberg, Daniel R. Brooks
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Parasites are integral components of the biosphere. Host switching correlated with events of episodic climate change is ubiquitous in evolutionary and ecological time. Global climate change produces ecological perturbations, which cause geographical and phenological shifts, and alteration in the dynamics of parasite transmission, increasing the potential for host switching. The intersection of climate change with evolutionary conservative aspects of host specificity and transmission dynamics, called ecological fitting, permits emergence of parasites and diseases without evolutionary changes in their capacity for host utilization.
Regional Advocacy Networks And The Protocol On The Rights Of Women In Africa, Melinda Adams, Alice J. Kang
Regional Advocacy Networks And The Protocol On The Rights Of Women In Africa, Melinda Adams, Alice J. Kang
Department of Political Science: Faculty Publications
While there has been a significant amount of research on transnational feminist activism at the global level, many feminist transnational advocacy networks are mobilizing within world regions. The lack of attention to the regional level has created a considerable imbalance in research on transnational activism. This article's first objective is to define regional advocacy networks (RANs) as a collection of individuals and organizations from the same world region working together toward a common goal. The article's second objective is to explore the conditions under which RANs are influential. We investigate conditions for RAN success through a case study of an …
Genome Evolution In Major Escherichia Coli O157:H7 Lineages, Yongxiang Zhang, Chad Laing, Marina Steele, Kim Ziebell, Roger Johnson, Andrew K. Benson, Eduardo Taboada, Victor Gannon
Genome Evolution In Major Escherichia Coli O157:H7 Lineages, Yongxiang Zhang, Chad Laing, Marina Steele, Kim Ziebell, Roger Johnson, Andrew K. Benson, Eduardo Taboada, Victor Gannon
Department of Food Science and Technology: Faculty Publications
Background: Genetic analysis of Escherichia coli O157:H7 strains has shown divergence into two distinct lineages, lineages I and II, that appear to have distinct ecological characteristics, with lineage I strains more commonly associated with human disease. In this study, microarray-based comparative genomic hybridization (CGH) was used to identify genomic differences among 31 E. coli O157:H7 strains that belong to various phage types (PTs) and different lineage-specific polymorphism assay (LSPA) types.
Results: A total of 4,084 out of 6,057 ORFs were detected in all E. coli O157:H7 strains and 1,751 were variably present or absent. Based on this data, E. coli …
Serologic Evidence Of West Nile Virus Exposure In North American Mesopredators, Kevin T. Bentler, Jeffrey S. Hall, J . Jeffrey Root, Kaci Klenk, Brandon S. Schmit, Bradley F. Blackwell, Paul C. Ramey, Larry Clark
Serologic Evidence Of West Nile Virus Exposure In North American Mesopredators, Kevin T. Bentler, Jeffrey S. Hall, J . Jeffrey Root, Kaci Klenk, Brandon S. Schmit, Bradley F. Blackwell, Paul C. Ramey, Larry Clark
United States Department of Agriculture Wildlife Services: Staff Publications
Sera from 936 mammalian mesopredators (Virginia opossums, gray foxes, striped skunks, hooded skunks, raccoons, a bobcat, and a red fox) were collected during 2003 and 2004 in California, Arizona, Texas, Louisiana, Ohio, and Wyoming and screened for flavivirus-specific antibodies by an epitope-blocking enzyme-linked immunosobent assay (blocking ELISA). Serum samples positive for antibodies against flaviviruses were screened for West Nile virus (WNV)– specific antibodies by blocking ELISA and selectively confirmed with plaque-reduction neutralization tests. High prevalence rates were observed in raccoons (45.6%) and striped skunks (62.9%). The high WNV antibody prevalence noted in mesopredators, their peridomestic tendencies, and their overall pervasiveness …
Inoculation Of Coffee Plants With The Fungal Entomopathogen Beauveria Bassiana (Ascomycota: Hypocreales), Francisco Posada, M. Catherine Aime, Stephen W. Peterson, Stephen A. Rehner, Fernando E. Vega
Inoculation Of Coffee Plants With The Fungal Entomopathogen Beauveria Bassiana (Ascomycota: Hypocreales), Francisco Posada, M. Catherine Aime, Stephen W. Peterson, Stephen A. Rehner, Fernando E. Vega
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The entomopathogenic fungus Beauveria bassiana was established in coffee seedlings afterfungal spore suspensions were applied as foliar sprays, stem injections, or soil drenches. Direct injection yielded the highest post-inoculation recovery of endophytic B. bassiana. Establishment, based on percent recovery of B. bassiana, decreased as time post-inoculation increased in all treatments. Several other endophytes were isolated from the seedlings and could have negatively influenced establishment of B. bassiana. The recovery of B. bassiana from sites distant from the point of inoculation indicates that the fungus has thepotential to move throughout the plant.
Reducing Non-Target Hazards Of Rodenticides In Forest Settings, Wendy M. Arjo, David T. Bryson
Reducing Non-Target Hazards Of Rodenticides In Forest Settings, Wendy M. Arjo, David T. Bryson
United States Department of Agriculture Wildlife Services: Staff Publications
Mammalian damage to forest resources is widespread and causes annual economic loss. Wildlife damage control is very important to the intensified land use practices and the economics of reforestation using seedlings. Reforestation areas provide ideal habitat for many wildlife species. However, animals negatively impact trees more severely during stand establishment than at any other time. While numerous non-lethal and lethal tools are available for large and medium-sized mammals, fewer tools are available for small mammals. The damage caused by these rodent species has in some cases warranted the use of rodenticides to control populations. Rodenticides are effective tools for reducing …
Current And Historical Use Of Alpha-Chloralose On Wild Turkeys, David Bergman, Brian F. Wakeling, Timothy B. Veenendaal, John D. Eisemann, Thomas W. Seamans
Current And Historical Use Of Alpha-Chloralose On Wild Turkeys, David Bergman, Brian F. Wakeling, Timothy B. Veenendaal, John D. Eisemann, Thomas W. Seamans
United States Department of Agriculture Wildlife Services: Staff Publications
Alpha-chloralose (AC) has been used as an anesthetic since 1897 to capture or sedate wildlife, including waterfowl, wood-pigeon (Columba palumbus), and black bear (Ursus americana). The first use of AC in the United States was for the capture of house sparrows (Passer domesticus), red-winged blackbirds (Agelaius phoeniceus), and wild turkeys (Meleagris gallopavo) in 1964. Prior to the 1990s, AC was not registered by the Food and Drug Administration (FDA) for use as an immobilizing agent in the United States for wild animals that might be used for human consumption. In …
Management Strategies For Addressing Wildlife Disease Transmission: The Case For Fertility Control, Gary Killian, Kathleen Fagerstone, Terry Kreeger, Lowell Miller, Jack Rhyan
Management Strategies For Addressing Wildlife Disease Transmission: The Case For Fertility Control, Gary Killian, Kathleen Fagerstone, Terry Kreeger, Lowell Miller, Jack Rhyan
United States Department of Agriculture Wildlife Services: Staff Publications
Transmissible diseases among wildlife species, and between wildlife and domestic livestock, are a matter of increasing concern. A combination of approaches should be considered for controlling disease transmission. If a vaccine is available or can economically be developed for the disease, it should be used as the primary component of the disease management strategy. For example, development of an oral rabies vaccine has led to programs where baits are dispersed on a large scale in a barrier zone to prevent the spread of rabies. However, there are no vaccines available for many diseases and incentives are frequently not present for …
Avian Influenza In Wild Birds: Environmental Sampling For The Rapid Detection Of Avian Influenza Viruses, Robert G. Mclean, Jeffrey S. Hall, Alan B. Franklin, Heather Sullivan, Kaci K. Vandalen, Susan A. Shriner, Matthew Farnsworth, Paul Oesterle, Ginger Young, Jenny Carlson, Kacy Cobble, Stacey Elmore, Ted Anderson, Sean Hauser, Kevin Bentler, Nicole Mooers, Kathryn P. Huyvaert, Tom Deliberto, Seth Swafford
Avian Influenza In Wild Birds: Environmental Sampling For The Rapid Detection Of Avian Influenza Viruses, Robert G. Mclean, Jeffrey S. Hall, Alan B. Franklin, Heather Sullivan, Kaci K. Vandalen, Susan A. Shriner, Matthew Farnsworth, Paul Oesterle, Ginger Young, Jenny Carlson, Kacy Cobble, Stacey Elmore, Ted Anderson, Sean Hauser, Kevin Bentler, Nicole Mooers, Kathryn P. Huyvaert, Tom Deliberto, Seth Swafford
United States Department of Agriculture Wildlife Services: Staff Publications
All subtypes of influenza Type A viruses infect wild birds, especially waterfowl and shorebirds, but rarely cause disease or mortality in these aquatic species. Aquatic birds are the natural reservoirs for low pathogenic avian influenza viruses (LPAI) that are distributed globally. However, some AI subtypes can be virulent in other animals and humans and some highly pathogenic AI viruses (HPAI) have caused major outbreaks in poultry and even pandemics in the human population. The emergence of a HPAI H5N1 subtype in southeast Asian poultry in 1997 subsequently involved migratory waterfowl in 2005 and has since spread westward throughout the Asian, …
Use Of Alpha-Chloralose By Usda Wildlife Services To Immobilize Birds, Jeanette R. O'Hare, John D. Eisemann, Kathleen A. Fagerstone, Lawanna L. Koch, Thomas W. Seamans
Use Of Alpha-Chloralose By Usda Wildlife Services To Immobilize Birds, Jeanette R. O'Hare, John D. Eisemann, Kathleen A. Fagerstone, Lawanna L. Koch, Thomas W. Seamans
United States Department of Agriculture Wildlife Services: Staff Publications
In 1992, the U. S. Food and Drug Administration (FDA) opened an Investigational New Animal Drug (INAD) file for the avian immobilizing agent, alpha-chloralose (AC) for the United States Department of Agriculture, Animal and Plant Health Inspection Service (APHIS). Currently, this INAD authorizes trained Wildlife Services (WS) personnel to use AC to immobilize and live-capture nuisance waterfowl (Anatidae spp.), American coots (Fulica americana), pigeons (Columba livia), common ravens (Corvus corax) and sandhill cranes (Grus canadensis). The use of AC has proven to be a valuable tool for WS and the number …
Rodenticide Use In Rodent Management In The United States: An Overview, Gary W. Witmer, John D. Eisemann
Rodenticide Use In Rodent Management In The United States: An Overview, Gary W. Witmer, John D. Eisemann
United States Department of Agriculture Wildlife Services: Staff Publications
Rodents occur worldwide and have adapted to most types of ecosystems. Rodents provide many important ecosystem functions and while most rodent species do not cause serious damage problems, a small number of species do. Rodent-caused damage includes crop and stored food consumption and contamination, forestry and nursery damage, rangeland damage, ornamental plant damage, property damage, cable and irrigation pipe damage, disease transmission, and, when introduced to islands, damage and even extinction of native flora and fauna. Many tools are used to reduce rodent populations and damage. Rodenticides are an especially important tool in rodent management. Many types of active ingredients …
Avian Use Of Rural Roadsides With Cattail (Typha Spp.), Bryan Safratowich, George M. Linz, William H. Bleier, H. Jeffrey Homan
Avian Use Of Rural Roadsides With Cattail (Typha Spp.), Bryan Safratowich, George M. Linz, William H. Bleier, H. Jeffrey Homan
United States Department of Agriculture Wildlife Services: Staff Publications
We surveyed 30 roadsides in North Dakota’s Prairie Pothole Region for birds and active nests between May and July 2001–2002. Each roadside transect was 1608 m and had ≥200 linear meters of standing cattail (Typha spp.). We recorded 45 bird species; four species of Icteridae dominated the avifauna. Red-winged blackbirds (Agelaius phoeniceus) were both the most abundant species and most abundant nester, averaging 53 birds/10 ha (SE = 7.7) and 30 nests/10 ha (SE = 9.7). Among non-icterid species, song sparrow (Melospiza melodia) and common yellowthroat (Geothlypis trichas) ranked first and second consecutively …
The 'S' Of 'Security’: Europe On The Road To Gmes, Frans Von Der Dunk
The 'S' Of 'Security’: Europe On The Road To Gmes, Frans Von Der Dunk
Space, Cyber, and Telecommunications Law Program: Faculty Publications
In November 2001, by means of a Resolution, the European Union officially launched 'Global Monitoring for the Environment and Security' (GMES), the second European space programme (after Galileo) essentially driven by the Union. The Resolution inter alia calls for the European Commission to coordinate with the European Space Agency (ESA) the realisation of "an operational and autonomous European capability for global monitoring for environment and security" by 2008, crucially involving a satellite system. Relevant data which are to form part of such a capability may, in principle, come from a number of different sources: space-based data, airborne data, and in …
The Role Of Drinking Motives In Social Anxiety And Alcohol Use, Lindsay S. Ham, Michel Bonin, Debra A. Hope
The Role Of Drinking Motives In Social Anxiety And Alcohol Use, Lindsay S. Ham, Michel Bonin, Debra A. Hope
Department of Psychology: Faculty Publications
Although social anxiety and problem drinking commonly co-occur, the relationship between social anxiety and drinking among college students is not well understood. The current study examined the relationship between drinking motives, or reasons for drinking, and social anxiety in 239 volunteers. Contrary to hypotheses, high (n = 83), moderate (n = 90), and low (n = 66) social anxiety groups did not differ in endorsement of coping and conformity drinking motives. Further, social anxiety was negatively related to weekly alcohol use and unrelated to alcohol-related problems. Post hoc hierarchical multiple regression analyses conducted for each social anxiety …
American Sociological Association, Michael R. Hill
American Sociological Association, Michael R. Hill
Department of Sociology: Faculty Publications
The American Sociological Association (ASA) is currently the largest and most influential membership organization of professional sociologists in the US. The ASA began its organizational life in 1905 when a small group of self-selected scholars representing several existing scholarly organizations (including the American Economic Association, the American Historical Association, and the American Political Science Association) proposed a separate and independent American Sociological Society (ASS) ("Organization of the American Sociological Society" 1906). The first ASS annual meeting convened December 27-29, 1906, in Providence, Rhode Island, with 115 members and a full program of scholarly papers. In 1959 the organization's name was …
Passive Aerobic Treatment Of Net-Alkaline, Iron-Laden Drainage From A Flooded Underground Anthracite Mine, Pennsylvania, Usa, Charles A. Cravotta Iii
Passive Aerobic Treatment Of Net-Alkaline, Iron-Laden Drainage From A Flooded Underground Anthracite Mine, Pennsylvania, Usa, Charles A. Cravotta Iii
United States Geological Survey: Staff Publications
This report evaluates the results of a continuous 4.5-day laboratory aeration experiment and the first year of passive, aerobic treatment of abandoned mine drainage (AMD) from a typical flooded underground anthracite mine in eastern Pennsylvania, USA. During 1991–2006, the AMD source, locally known as the Otto Discharge, had flows from 20 to 270 L/s (median 92 L/s) and water quality that was consistently suboxic (median 0.9 mg/L O2) and circumneutral (pH ~ 6.0; net alkalinity >10) with moderate concentrations of dissolved iron and manganese and low concentrations of dissolved aluminum (medians of 11, 2.2, and <0.2 mg/L, respectively). In 2001, the laboratory aeration experiment demonstrated rapid oxidation of ferrous iron (Fe2+) without …0.2>
Soil Nematode Communities Are Ecologically More Mature Beneath Late- Than Early-Successional Stage Biological Soil Crusts, Brian J. Darby, Deborah A. Neher, Jayne Belnap
Soil Nematode Communities Are Ecologically More Mature Beneath Late- Than Early-Successional Stage Biological Soil Crusts, Brian J. Darby, Deborah A. Neher, Jayne Belnap
United States Geological Survey: Staff Publications
Biological soil crusts are key mediators of carbon and nitrogen inputs for arid land soils and often represent a dominant portion of the soil surface cover in arid lands. Free-living soil nematode communities reflect their environment and have been used as biological indicators of soil condition. In this study, we test the hypothesis that nematode communities are successionally more mature beneath well-developed, late-successional stage crusts than immature, early-successional stage crusts. We identified and enumerated nematodes by genus from beneath early- and late-stage crusts from both the Colorado Plateau, Utah (cool, winter rain desert) and Chihuahuan Desert, New Mexico (hot, summer …
Latin Hypercube Approach To Estimate Uncertainty In Ground Water Vulnerability, Jason J. Gurdak, John E. Mccray, Geoffrey Thyne, Sharon L. Qi
Latin Hypercube Approach To Estimate Uncertainty In Ground Water Vulnerability, Jason J. Gurdak, John E. Mccray, Geoffrey Thyne, Sharon L. Qi
United States Geological Survey: Staff Publications
A methodology is proposed to quantify prediction uncertainty associated with ground water vulnerability models that were developed through an approach that coupled multivariate logistic regression with a geographic information system (GIS). This method uses Latin hypercube sampling (LHS) to illustrate the propagation of input error and estimate uncertainty associated with the logistic regression predictions of ground water vulnerability. Central to the proposed method is the assumption that prediction uncertainty in ground water vulnerability models is a function of input error propagation from uncertainty in the estimated logistic regression model coefficients (model error) and the values of explanatory variables represented in …
Evidence Of Feline Immunodeficiency Virus, Feline Leukemia Virus, And Toxoplasma Gondii In Feral Cats On Mauna Kea, Hawaii, Raymond M. Danner, Daniel M. Goltz, Steven C. Hess, Paul C. Banko
Evidence Of Feline Immunodeficiency Virus, Feline Leukemia Virus, And Toxoplasma Gondii In Feral Cats On Mauna Kea, Hawaii, Raymond M. Danner, Daniel M. Goltz, Steven C. Hess, Paul C. Banko
United States Geological Survey: Staff Publications
We determined prevalence to feline immunodeficiency virus (FIV) antibodies, feline leukemia virus (FeLV) antigen, and Toxoplasma gondii antibodies in feral cats (Felis catus) on Mauna Kea Hawaii from April 2002 to May 2004. Six of 68 (8.8%) and 11 of 68 (16.2%) cats were antibody positive to FIV and antigen positive for FeLV, respectively; 25 of 67 (37.3%) cats were seropositive to T. gondii. Antibodies to FeLV and T. gondii occurred in all age and sex classes, but FIV occurred only in adult males. Evidence of current or previous infections with two of these infectious agents was …
Biomonitoring Of Lead, Zinc, And Cadmium In Streams Draining Lead-Mining And Non-Mining Areas, Southeast Missouri, Usa, John M. Besser, William G. Brumbaugh, Thomas W. May, Christopher J. Schmitt
Biomonitoring Of Lead, Zinc, And Cadmium In Streams Draining Lead-Mining And Non-Mining Areas, Southeast Missouri, Usa, John M. Besser, William G. Brumbaugh, Thomas W. May, Christopher J. Schmitt
United States Geological Survey: Staff Publications
We evaluated exposure of aquatic biota to lead (Pb), zinc (Zn), and cadmium (Cd) in streams draining a Pb-mining district in southeast Missouri. Samples of plant biomass (detritus, periphyton, and filamentous algae), invertebrates (snails, crayfish, and riffle benthos), and two taxa of fish were collected from seven sites closest to mining areas (mining sites), four sites further downstream from mining (downstream sites), and eight reference sites in fall 2001. Samples of plant biomass from mining sites had highest metal concentrations, with means 10- to 60- times greater than those for reference sites. Mean metal concentrations in over 90% of samples …
Evaluation Of Potentially Nonlethal Sampling Methods For Monitoring Mercury Concentrations In Smallmouth Bass (Micropterus Dolomieu), Christopher J. Schmitt, W. G. Brumbaugh
Evaluation Of Potentially Nonlethal Sampling Methods For Monitoring Mercury Concentrations In Smallmouth Bass (Micropterus Dolomieu), Christopher J. Schmitt, W. G. Brumbaugh
United States Geological Survey: Staff Publications
We evaluated three potentially nonlethal alternatives to fillet sampling for the determination of mercury (Hg) concentrations in smallmouth bass (Micropterus dolomieu). Fish (n = 62, 226–464 mm total length) from six sites in southern Missouri were captured by electrofishing. Blood samples (1 mL) from each fish were obtained by caudal veinipuncture with a heparinized needle and syringe. Biopsy needle (10 mm x 14 gauge; three cuts per fish; 10–20 mg total dry weight) and biopsy punch (7 mm x 5 mm in diameter, one plug per fish, 30–50 mg dry weight) samples were obtained from the area beneath …
Research Note: Hymenolepis Horrida (Cestoda: Hymenolepididae) And Catenotaenia Peromysci (Cestoda: Anoplocephalidae) In Voles From The Canadian Rockies, Yeen Ten Hwang, Scott Lyell Gardner, John S. Millar
Research Note: Hymenolepis Horrida (Cestoda: Hymenolepididae) And Catenotaenia Peromysci (Cestoda: Anoplocephalidae) In Voles From The Canadian Rockies, Yeen Ten Hwang, Scott Lyell Gardner, John S. Millar
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Cestodes from Clethrionomys gapperi (n=34) and Microtus longicaudus (n=8) from Kootenay National Park, British Columbia, Canada are reported. Two species of cestodes, Hymenolepis horrida (sensu lato) and Catenotaenia peromysci, were found in Clethrionomys gapperi, and one species of cestode, H. horrida, was found in Microtus longicaudus. Clethrionomys gapperi represents a new host record for C. peromysci. The Canadian Rockies is a new locality record for both cestode species.
Development And Pilot Testing Of An Omega-3 Fatty Acid Food Frequency Questionnaire, Paula K. Ritter-Gooder, Nancy M. Lewis, Kimberly Barber-Heidal, Megan Waltz-Hill
Development And Pilot Testing Of An Omega-3 Fatty Acid Food Frequency Questionnaire, Paula K. Ritter-Gooder, Nancy M. Lewis, Kimberly Barber-Heidal, Megan Waltz-Hill
Department of Nutrition and Health Sciences: Faculty Publications
Omega-3 fatty acids are essential to health and provide cardio-protective benefits. To estimate omega-3 fatty acid dietary intake, we developed a semi-quantitative food frequency questionnaire (FFQ) and pilot tested its reliability and validity in a convenience sample of cardiac patients in the Midwest. The FFQ was developed using the USDA Nutrient Database for Standard Reference and the ESHA Food Processor, ESHA Research, Salem, Oregon. Three 24-h recalls and two administrations of the FFQ two weeks apart were obtained by a dietitian by phone and home visit from 28 volunteers. Pearson correlation was used to assess the association between food recalls …