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Articles 11701 - 11730 of 12893
Full-Text Articles in Entire DC Network
By The Numbers, J. Michael Scott, Dale D. Goble, Leona K. Svancara, Anna Pidgorna
By The Numbers, J. Michael Scott, Dale D. Goble, Leona K. Svancara, Anna Pidgorna
United States Geological Survey: Staff Publications
The current endangered species list has its administrative beginnings in 1964 when the Department of the Interior's Committee on Rare and Endangered Wildlife Species published a preliminary list of 62 species at risk of extinction (Goble, forthcoming). Following the enactment of the Endangered Species Preservation Act of 1966 (ESPA), the secretary of the interior in 1967 published the first official list of 78 "native fish and wildlife threatened with extinction" (ESPA sec. l(c); U.S. Department of the Interior 1967; Wilcove and McMillan, this volume). By the time the Endangered Species Act (ESA) was adopted in 1973, there were 392 species …
Environmental Contaminants In Fish And Their Associated Risk To Piscivorous Wildlife In The Yukon River Basin, Alaska, Jo Ellen Hinck, Christopher J. Schmitt, Kathy R. Echols, Tom W. May, Carl E. Orazio, Donald E. Tillitt
Environmental Contaminants In Fish And Their Associated Risk To Piscivorous Wildlife In The Yukon River Basin, Alaska, Jo Ellen Hinck, Christopher J. Schmitt, Kathy R. Echols, Tom W. May, Carl E. Orazio, Donald E. Tillitt
United States Geological Survey: Staff Publications
Organochlorine chemical residues and elemental contaminants were measured in northern pike (Esox lucius), longnose sucker (Catostomus catostomus), and burbot (Lota lota) from 10 sites in the Yukon River Basin (YRB) during 2002. Contaminant concentrations were compared to historical YRB data and to toxicity thresholds for fish and piscivorous wildlife from the scientific literature. A risk analysis was conducted to screen for potential hazards to piscivorous wildlife for contaminants that exceeded literature-based toxicity thresholds. Concentrations of total DDT (sum of p,p¢-homologs; 1.09–13.6 ng/g), total chlordane (0.67–7.5 ng/g), dieldrin (<0.16–0.6 ng/g), toxaphene (<11–34 ng/g), total PCBs (<20– 87 ng/g), TCDD-EQ (<1.7 pg/g), arsenic (0.03–1.95 lg/g), cadmium (<0.02–0.12 lg/g), copper (0.41–1.49 lg/g), and lead (<0.21–0.27 lg/g) did not exceed toxicity thresholds for growth and reproduction in YRB fish. Concentrations of mercury (0.08–0.65 lg/g), selenium (0.23–0.85 lg/g), and zinc (11–56 lg/g) exceeded toxicity thresholds in one or more samples and were included in the risk analysis for piscivorous wildlife. No effect hazard concentrations (NEHCs) and low effect hazard concentrations (LEHCs), derived from literaturebased toxicity reference values and avian and mammalian life history parameters, were calculated for mercury, selenium, and zinc. Mercury concentrations in YRB fish exceeded the NEHCs for all bird and small mammal models, which indicated that mercury concentrations in fish may represent a risk to piscivorous wildlife throughout the YRB. Low risk to piscivorous wildlife was associated with selenium and zinc concentrations in YRB fish. Selenium and zinc concentrations exceeded the NEHCs and LEHCs for only the small bird model. These results indicate that mercury should continue to be monitored and assessed in Alaskan fish and wildlife.
A Screening-Level Assessment Of Lead, Cadmium, And Zinc In Fish And Crayfish From Northeastern Oklahoma, Usa, Christopher J. Schmitt, William G. Brumbaugh, Gregory L. Linder, Jo Ellen Hinck
A Screening-Level Assessment Of Lead, Cadmium, And Zinc In Fish And Crayfish From Northeastern Oklahoma, Usa, Christopher J. Schmitt, William G. Brumbaugh, Gregory L. Linder, Jo Ellen Hinck
United States Geological Survey: Staff Publications
The objective of this study was to evaluate potential human and ecological risks associated with metals in fish and crayfish from mining in the Tri-States Mining District (TSMD). Crayfish (Orconectes spp.) and fish of six frequently consumed species (common carp, Cyprinus carpio; channel catfish, Ictalurus punctatus; flathead catfish, Pylodictis olivaris; largemouth bass, Micropterus salmoides; spotted bass, M. punctulatus; and white crappie, Pomoxis annularis) were collected in 2001–2002 from the Oklahoma waters of the Spring River (SR) and Neosho River (NR), which drain the TSMD. Samples from a mining-contaminated site in eastern Missouri and …
Redescription Of Cryptocotyle Thapari Mcintosh, 1953 (Trematoda: Heterophyidae), In The River Otter Lutra Longicaudis From Bolivia, Scott Lyell Gardner, Peter T. Thew
Redescription Of Cryptocotyle Thapari Mcintosh, 1953 (Trematoda: Heterophyidae), In The River Otter Lutra Longicaudis From Bolivia, Scott Lyell Gardner, Peter T. Thew
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Cryptocotyle thapari McIntosh, 1953 (Digenea: Heterophyidae), collected originally from a South American otter that died at the U.S. National Zoo in Washington, D.C., is redescribed from specimens obtained from a river otter, Lutra longicaudis, collected from the Rı´o Matos in the Departamento de Beni, Bolivia. These individuals of C. thapari are slightly smaller than the type specimens, but they have similar features, including testes arranged in tandem and a well-defined ventrogenital sac. We redescribe this species because the original description was based on only 3 individuals, and the figures lacked detail. This is the first record of Cryptocotyle from …
Dinsdale Family Luncheon, John Owens
Dinsdale Family Luncheon, John Owens
John Owens: Speeches and Appearances
Today we celebrate and honor the 2006 recipients of the Dinsdale Family Faculty Awards, made possible by the generosity of the Dinsdale family.
Aglec Advisory Council Meeting, John Owens
Aglec Advisory Council Meeting, John Owens
John Owens: Speeches and Appearances
Thank you for inviting me to be with you today to discuss one of my favorite topics - education and the terrifically talented young people who come to study with us in the College of Agricultural Sciences and Natural Resources, or CASNR, in the Institute of Agriculture and Natural Resources here at the University of Nebraska-Lincoln.
Nebraska Hall Of Agricultural Achievement Dinner, John Owens
Nebraska Hall Of Agricultural Achievement Dinner, John Owens
John Owens: Speeches and Appearances
It is my pleasure to be with you tonight celebrating the accomplishments of these wonderful and worthy new additions to the Nebraska Hall of Agricultural Achievement. I'm delighted to have this opportunity to help recognize these individuals so deserving of their honors. What a pleasure to say, “well done and thank you” to people who make such significant contributions to the world, who live their lives meaningfully in the way they choose to put their talents and energies to work.
Casnr Salute To Graduates, John Owens
Casnr Salute To Graduates, John Owens
John Owens: Speeches and Appearances
We appreciate your being with us this afternoon as we celebrate, the accomplishments of tomorrow's graduates from the University of Nebraska-Lincoln. Thank you for attending and, congratulations to the new alumni! This ceremony is rapidly becoming both a fixture and a tradition in the College of Agricultural Sciences and Natural Resources. As a matter of fact, it took the national "First Place Award" in a competition this year that was open to all the universities in the United States.
Casnr Salute To Graduates, John Owens
Casnr Salute To Graduates, John Owens
John Owens: Speeches and Appearances
We appreciate your being with us as we celebrate the accomplishments of tomorrow’s graduates from the University of Nebraska – Lincoln. Thank you for attending. This ceremony is rapidly becoming both a fixture and a tradition in the College of Agricultural Sciences and Natural Resources.
In Memorium: Lynn Ann Hertel, Donald Duszynski, Eric S. Loker
In Memorium: Lynn Ann Hertel, Donald Duszynski, Eric S. Loker
Harold W. Manter Laboratory of Parasitology: Faculty Publications
A memorial tribute to Lynn Ann Hertel (1951-2005) of the University of New Mexico, by Donald W. Duszynski and Eric S. Loker.
Seven New Species Of Eimeria Schneider, 1875 (Apicomplexa: Eimeriidae) From Colubrid Snakes Of Guatemala And A Discussion Of What To Call Ellipsoid Tetrasporocystic, Dizoic Coccidia Of Reptiles, I. M. Asmundsson, Donald W. Duszynski, J. A. Campbell
Seven New Species Of Eimeria Schneider, 1875 (Apicomplexa: Eimeriidae) From Colubrid Snakes Of Guatemala And A Discussion Of What To Call Ellipsoid Tetrasporocystic, Dizoic Coccidia Of Reptiles, I. M. Asmundsson, Donald W. Duszynski, J. A. Campbell
Harold W. Manter Laboratory of Parasitology: Faculty Publications
During a survey of Guatemalan herpetofauna in the summers of 1998–2000, 29 presumed new species of Eimeria Schneider, 1875 were found, seven of which have a distinct elongate-ellipsoidal shape (L/W ratio ≥ 1.7) and are described herein. Six of the seven new species are similar in oöcyst length, width and L/W ratio and sporocyst length, width and L/W ratio, lack a micropyle, oöcyst residuum, Stieda body, sub- and parastieda bodies, have a polar granule and sporocyst residuum, and their sporocysts appear to have dehiscence sutures. The seventh is slightly smaller and has sporocysts with a Stieda body. The new species …
Psettarium Anthicum Sp. N. (Digenea: Sanguinicolidae) From The Heart Of Cobia Rachycentron Canadum (Rachycentridae) In The Northern Gulf Of Mexico, Stephen A. Bullard, Robin M. Overstreet
Psettarium Anthicum Sp. N. (Digenea: Sanguinicolidae) From The Heart Of Cobia Rachycentron Canadum (Rachycentridae) In The Northern Gulf Of Mexico, Stephen A. Bullard, Robin M. Overstreet
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Psettarium anthicum sp. n. (Digenea: Sanguinicolidae) infects the myocardium and atrial wall of the cobia Rachycentron canadum (Linnaeus, 1766) (Rachycentridae) in the northern Gulf of Mexico off Mississippi, USA. It is the first member of Psettarium Goto et Ozaki, 1930 reported from other than the Indian Ocean or Pacific Ocean and the second species of the genus reported from cobia. It differs from its congeners by the combination of having posterior caeca with lateral projections appearing as thorns in lateral view and the male pore anterior to the oötype. The species of Psettarium, P. japonicum (Goto et Ozaki, 1929) …
A Review Of Polylekithum Arnold 1934 And Its Familial Affinities Using Morphological And Molecular Data, With Description Of Polylekithum Catahoulensis Sp. Nov., Stephen S. Curran, Vasyl V. Tkach, Robin M. Overstreet
A Review Of Polylekithum Arnold 1934 And Its Familial Affinities Using Morphological And Molecular Data, With Description Of Polylekithum Catahoulensis Sp. Nov., Stephen S. Curran, Vasyl V. Tkach, Robin M. Overstreet
Harold W. Manter Laboratory of Parasitology: Faculty Publications
The type material of Polylekithum ictaluri, P. halli, and Maculifer chandleri was examined from the United States National Parasite Museum, and we determined that the material was conspecific, making P. halli and M. chandleri junior subjective synonyms of P. ictaluri. Polylekithum catahoulensis sp. nov. was described from material collected from catfishes at the Catahoula Wildlife Refuge, LaSalle Parish, Louisiana, USA, and compared with P. ictaluri collected from catfishes in Reelfoot Lake, Obion County, Tennessee, USA, and the Pearl River, Hancock County, Mississippi, USA. Polylekithum catahoulensis had smaller eggs (77-88 μm long by 51-63 µm wide vs. 94-108 …
Breeding Biology And Success Of A Reintroduced Population Of The Critically Endangered Puaiohi (Myadestes Palmeri), Erik J. Tweed, Jeffrey T. Foster, Bethany L. Woodworth, William B. Monahan, Jherime L. Kellerman, Alan Lieberman
Breeding Biology And Success Of A Reintroduced Population Of The Critically Endangered Puaiohi (Myadestes Palmeri), Erik J. Tweed, Jeffrey T. Foster, Bethany L. Woodworth, William B. Monahan, Jherime L. Kellerman, Alan Lieberman
United States Geological Survey: Staff Publications
The ultimate success of reintroduction programs for endangered species depends on the ability of reintroduced animals to breed in the wild. We studied the nesting success and breeding biology of a reintroduced population of Puaiohi (Myadestes palmeri) on the island of Kaua‛i, Hawaii. Thirty-four captive-bred Puaiohi were released into the Alaka‛i Swamp in 1999–2001 and monitored using radiotelemetry. Ten females and two males paired with wild and other released birds, including one polygynous trio. From March to September, 31 nests were built. Mean clutch size was 2.0 eggs, daily nest survival was 0.97 ± 0.01 (mean ± SE) …
External Debt And Growth Dynamics, Si Chen
External Debt And Growth Dynamics, Si Chen
Dissertations and Theses Collection (Open Access)
Based on an extended growth model, this thesis further explores the joint dynamics between external debt and growth. The model explicitly expresses this growth dynamic mechanism incorporating external debt as an important explanatory variable with risk premium and other related structural factors. The interactions between external debt and growth are interpreted as directly and mainly through the channel of capital accumulation and indirectly through technology change. These constitute the functional form foundation to solve the main concern on the effect of external debt upon growth adjustment path. The numerical simulations of the model indicate that when external debt is assumed …
Reconceptualizing Child Sexual Exploitation As A Bias Crime Under The Protect Act, Tracy Agyemang
Reconceptualizing Child Sexual Exploitation As A Bias Crime Under The Protect Act, Tracy Agyemang
Cardozo Journal of Equal Rights & Social Justice
The note argues that the PROTECT Act, while expanding legal measures to combat child sexual exploitation, fails to address the crime's root causes and its nature as a form of discrimination. It advocates for reconceptualizing child sexual exploitation as a bias crime, which would enhance legal deterrence, increase penalties, and better acknowledge the psychological trauma experienced by victims. The note emphasizes that recognizing exploitation as a bias crime would address the systemic factors, such as poverty and discrimination, that perpetuate the crime.
Citizenship Theories, Immigration And Nationality Act Section 309 & Nguyen V. Ins: How The Supreme Court Got It Wrong, Rachel Baskin
Citizenship Theories, Immigration And Nationality Act Section 309 & Nguyen V. Ins: How The Supreme Court Got It Wrong, Rachel Baskin
Cardozo Public Law, Policy & Ethics Journal
The note critiques the Supreme Court's decision in *Tuan Anh Nguyen v. INS*, which upheld the constitutionality of Section 309 of the Immigration and Nationality Act (INA). This provision imposes additional requirements for U.S. citizen fathers, unlike mothers, to transmit citizenship to children born abroad. The author argues that the Court's ruling perpetuates gender discrimination and undermines the deeper meaning of citizenship, which should encompass membership, belonging, and substantive ties to the nation rather than mere legal formalities. The analysis draws on republican, communitarian, and liberal theories of citizenship to advocate for a more inclusive and gender-neutral approach to citizenship …
Tannerella Forsythia, A Periodontal Pathogen Entering The Genomic Era, Anne C. R. Tanner, Jacques Izard
Tannerella Forsythia, A Periodontal Pathogen Entering The Genomic Era, Anne C. R. Tanner, Jacques Izard
Department of Food Science and Technology: Faculty Publications
Several questions need to be addressed to evaluate whether Tannerella forsythia is to be considered a periodontal pathogen. T. forsythia has been detected in periodontal health and disease, so could it be a pathogen? The species was not detected in many studies despite finding other putative pathogens, so could it be important in pathogenicity? The challenges of working with T. forsythia include its fastidious and anaerobic growth requirements for cultural detection. Thus, studies associating T. forsythia with periodontal and other oral infections have used noncultural approaches (immunoassays and DNA-based assays) in addition to cultural approaches. We feel …
2006-2007 Lindenwood University Undergraduate Course Catalog, Lindenwood University
2006-2007 Lindenwood University Undergraduate Course Catalog, Lindenwood University
Course Catalogs
Lindenwood University Undergraduate Course Catalog
2006-2007 Lindenwood University Graduate Course Catalog, Lindenwood University
2006-2007 Lindenwood University Graduate Course Catalog, Lindenwood University
Course Catalogs
Lindenwood University Graduate Course Catalog
An Experimental Investigation Of Guided Wave Propagation In Corrugated Plates Showing Stop Bands And Pass Bands, Tribikram Kundu, Sourav Banerjee, Kumar V. Jata
An Experimental Investigation Of Guided Wave Propagation In Corrugated Plates Showing Stop Bands And Pass Bands, Tribikram Kundu, Sourav Banerjee, Kumar V. Jata
Faculty Publications
Nonplanar surfaces are often encountered in engineering structures. In aerospace structures, periodically corrugated boundaries are formed by friction-stir-welding. In civil engineering structures, rebars used in reinforced concrete beams and slabs have periodic surface. Periodic structures are also being used to create desired acoustic band gaps. For health monitoring of these structures, a good understanding of the elastic wave propagation through such periodic structures is necessary. Although a number of research papers on the wave propagation in periodic structures are available in the literature, no one experimentally investigated the guided wave propagation through plates with periodic boundaries and compared the experimental …
Elastic Wave Propagation In Sinusoidally Corrugated Waveguides, Sourav Banerjee, Tribikram Kundu
Elastic Wave Propagation In Sinusoidally Corrugated Waveguides, Sourav Banerjee, Tribikram Kundu
Faculty Publications
The ultrasonicwave propagation in sinusoidally corrugated waveguides is studied in this paper. Periodically corrugated waveguides are gaining popularity in the field of vibration control and for designing structures with desired acoustic band gaps. Currently only numerical method (Boundary Element Method or Finite Element Method) based packages (e.g., PZFlex) are in principle capable of modeling ultrasonic fields in complex structures with rapid change of curvatures at the interfaces and boundaries but no analyses have been reported. However, the packages are very CPU intensive; it requires a huge amount of computation memory and time for its execution. In this paper a new …
Something Old, Something New, Something Borrowed, Something Blue And A Silver Sixpence For Her Shoe: Dukes V. Wal-Mart & Sex Discrimination Class Actions, Winnie Chau
Cardozo Journal of Equal Rights & Social Justice
The note examines the effectiveness of large-scale sex discrimination class actions, particularly through the lens of Dukes v. WalMart, in driving systemic change in corporate workplace practices. While these actions often succeed in compensating victims, they frequently fail to address the root causes of discrimination, leaving broader systemic issues unresolved. The analysis highlights the tension between procedural requirements and the need for meaningful reform, suggesting that such lawsuits can prompt some positive changes but often fall short of achieving lasting impact.
Merck V. Integra And Its Aftermath: A Safe Harbor For The Commercial Use Of Biotechnology Research Tools?, Brendan M. O'Malley
Merck V. Integra And Its Aftermath: A Safe Harbor For The Commercial Use Of Biotechnology Research Tools?, Brendan M. O'Malley
Cardozo Arts & Entertainment Law Journal
No abstract provided.
"We-Intention" And The Limits Of Copyright, Lior Zemer
"We-Intention" And The Limits Of Copyright, Lior Zemer
Cardozo Arts & Entertainment Law Journal
No abstract provided.
Estrogenic Activity In The Environment: Municipal Wastewater Effluent, River, Ponds, And Wetlands, Nancy W. Shappell
Estrogenic Activity In The Environment: Municipal Wastewater Effluent, River, Ponds, And Wetlands, Nancy W. Shappell
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Estrogenic activity of regional water samples was evaluated. Samples obtained from wetlands and ponds involved in various agricultural land uses, from three river sites over four seasons, and from municipal wastewater effluent held in storage lagoons were evaluated. The estrogen- responsive cell line MCF-7 BOS was used in the E-screen assay to determine 17β-estradiol equivalents (E2 Eq) of water samples extracted by solid-phase extraction. Estrogenic activity in surrounding wetlands and ponds from different land uses was not different, with 10-12 M E2 Eq (0.3 ppt). Estrogenic activity of Red River samples was within the same range as wetland–pond …
Net Global Warming Potential And Greenhouse Gas Intensity In Irrigated Cropping Systems In Northeastern Colorado, Arvin R. Mosier, Ardell D. Halvorson, Curtis A. Reule, Xuejun J. Liu
Net Global Warming Potential And Greenhouse Gas Intensity In Irrigated Cropping Systems In Northeastern Colorado, Arvin R. Mosier, Ardell D. Halvorson, Curtis A. Reule, Xuejun J. Liu
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The impact of management on global warming potential (GWP), crop production, and greenhouse gas intensity (GHGI) in irrigated agriculture is not well documented. A no-till (NT) cropping systems study initiated in 1999 to evaluate soil organic carbon (SOC) sequestration potential in irrigated agriculture was used in this study to make trace gas flux measurements for 3 yr to facilitate a complete greenhouse gas accounting of GWP and GHGI. Fluxes of CO2, CH4, and N2O were measured using static, vented chambers, one to three times per week, year round, from April 2002 through October 2004 …
Nutrient Uptake Of Maize Affected By Nitrogen And Potassium Fertility In A Humid Subtropical Environment, H. Arnold Bruns, M. Wayne Ebelhar
Nutrient Uptake Of Maize Affected By Nitrogen And Potassium Fertility In A Humid Subtropical Environment, H. Arnold Bruns, M. Wayne Ebelhar
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Nitrogen (N) and potassium (K) fertility management of maize (Zea mays L.) in the humid subtropical Mississippi Delta may differ from a temperate climate because of its use in rotation with cotton (Gossypium hirsutum L.), soil temperatures rarely falling to 0 °C, and heavy winter rains that facilitate nutrient losses. An experiment to determine the [N] (concentration = [ ]), phosphorus [P], [K], calcium [Ca], magnesium [Mg], iron [Fe], manganese [Mn], zinc [Zn], and copper [Cu] and their total contents plant-1 of maize grown in rotation with cotton, using N fertility levels of (134, 179, 224, 269, …
Effect Of Foliar Applied Plant Elicitors On Microbial And Nematode Populations In The Root Zone Of Potato, H. P. Collins, D. A. Navare, E. Riga, F. J. Pierce
Effect Of Foliar Applied Plant Elicitors On Microbial And Nematode Populations In The Root Zone Of Potato, H. P. Collins, D. A. Navare, E. Riga, F. J. Pierce
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Systemic acquired resistance (SAR) is a process whereby a plant that successfully
resists a pathogen becomes highly resistant to subsequent infection not only by the original pathogen but also by a wide variety of pathogens. Most SAR research has focused on resistance in leaves, so much less is known about the effectiveness of foliar applications of SAR compounds in the protection of plant roots and associated microorganisms in soil. This study was conducted to determine if foliar SAR-inducing applications (BTH or harpin) negatively impact the potato root system beneficial rhizosphere microbial populations and activity or influence pathogenic nematode populations. Foliar …
Un-Ionized Ammonia Exposure In Nile Tilapia: Toxicity, Stress Response, And Susceptibility To Streptococcus Agalactiae, Joyce J. Evans, David J. Park, Gregg C. Brill, Phillip H. Klesius
Un-Ionized Ammonia Exposure In Nile Tilapia: Toxicity, Stress Response, And Susceptibility To Streptococcus Agalactiae, Joyce J. Evans, David J. Park, Gregg C. Brill, Phillip H. Klesius
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
A series of experiments were conducted to determine the toxicity, behavior, blood glucose stress response, and disease susceptibility in Nile tilapia Oreochromis niloticus following un-ionized ammonia (UIA) exposure. The acute toxicity of un-ionized ammonia to Nile tilapia was measured in a 96-h static test. The median lethal concentration (LC50) was 1.46 mg/L UIA at 24 and 48 h postexposure, 1.33 mg/ L at 72 h postexposure, and 0.98 mg/L at 96 h postexposure. No mortalities were noted in unexposed (0 mg/ L) control fish or fish exposed to 0.5 mg/L UIA. However, 93–100% mortalities were observed within 24 h among …