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Articles 118891 - 118920 of 256032
Full-Text Articles in Life Sciences
Upscaling Stem To Community-Level Transpiration For Two Sand-Fixing Plants: Salix Gordejevii And Caragana Microphylla, Limin Duan, Yang Li, Xue Yan, Tingxi Liu, Xixi Wang
Upscaling Stem To Community-Level Transpiration For Two Sand-Fixing Plants: Salix Gordejevii And Caragana Microphylla, Limin Duan, Yang Li, Xue Yan, Tingxi Liu, Xixi Wang
Civil & Environmental Engineering Faculty Publications
The information on transpiration is vital for sustaining fragile ecosystem in arid/semiarid environment, including the Horqin Sandy Land (HSL) located in northeast China. However, such information is scarce in existing literature. The objectives of this study were to: (1) measure sap flow of selected individual stems of two sand-fixing plants, namely Salix gordejevii and Caragana microphylla, in HSL; and (2) upscale the measured stem-level sap flow for estimating the community-level transpiration. The measurements were done from 1 May to 30 September 2015 (i.e., during the growing season). The upscaling function was developed to have one dependent variable, namely sap …
The Relationship Of Life Stage To Daily Social Patterns Of Captive African Elephants (Loxodonta Africana) And The Correlation Of Handler Perceptions Of Elephant Personality To Demonstrated Social Behaviors, Alison Jeffrey
Honors Theses and Capstones
Elephants typically have very strong social bonds, and social interactions can include affiliative, agonistic, or ambiguous behaviors. The social interactions and dominance hierarchy between individuals of a herd depend upon many factors, including maternal lineage, age, and sex. This study was designed to determine how social behaviors among a herd of captive African elephants varied throughout the day and to establish if the frequency of social interactions and age class were correlated. The study also aimed to determine if handler perceptions of elephant personality were an accurate predictor of the type and frequency of social behaviors observed, in addition to …
Characterizing Food Insecurity At A Northeast Land-Grant University, Alana Ruth Davidson
Characterizing Food Insecurity At A Northeast Land-Grant University, Alana Ruth Davidson
Honors Theses and Capstones
In 2015, 15.8 million U.S. households were food insecure. While nationally food insecurity is assessed at the household and childhood level, university students are not explicitly monitored. The purpose of this study was to determine the prevalence of food insecurity at a northeast land grant university and characterize the contributing factors. A pilot study (n=211) was conducted in fall 2014 among a general nutrition class and found that 12.4% of students were food insecure, with another 5.7% reported marginal food security. A larger, university wide survey among graduate and undergraduate students was conducted in fall 2015 (n=943) and found that …
A Changing Gulf Of Maine: Investigating The Role Of Benthic Water Temperature In Determining The Timing Of Spiny Dogfish (Squalus Acanthias) Arrival And Departure In The Gulf Of Maine, Benjamin Donald Gallo
A Changing Gulf Of Maine: Investigating The Role Of Benthic Water Temperature In Determining The Timing Of Spiny Dogfish (Squalus Acanthias) Arrival And Departure In The Gulf Of Maine, Benjamin Donald Gallo
Honors Theses and Capstones
Spiny Dogfish (Squalus acanthias) is a highly migratory elasmobranch that undergoes annual migrations along the East Coast of the United States. Spiny dogfish have been studied extensively on the West Coast, but little information currently exists on the life history of this species in the Gulf of Maine (GOM). In the last few years, commercial gillnet fishermen in the GOM have been reporting unusual catch patterns while fishing offshore, perhaps indicating an increased abundance in dogfish and an extension of the length of time that dogfish occupy the GOM in a given year. Concurrent with these changes, rising …
The Influence Of Dietary Factors On Child Food Allergies, Jessica A. Shaw
The Influence Of Dietary Factors On Child Food Allergies, Jessica A. Shaw
Honors Theses and Capstones
Solid food introduction guidelines were recently amended to suggest that earlier introduction of peanuts is associated with a decreased prevalence of peanut allergies in high-risk children. This study aimed to determine whether there is a relationship between timing of introduction to the eight most common food allergens and the development of a food allergy. A total of 177 biological mothers of school-aged New Hampshire children completed the survey, but some were excluded due to answering <50% of the survey or not consenting to participate in the study. This left data on 101 participants, and the number of participants then varied between the various food allergens. Out of the 22 children with a milk allergy, 10 children were introduced to milk when they were less than 12 months old and 12 children were introduced at or after one year old. Fifty-nine percent of those introduced before 12 months of age developed a milk allergy, while only 17% of those introduced at or past 12 months developed a milk allergy (p = 0.00). Out of the 55 participants that developed a peanut/tree nut allergy, 12 were introduced to peanuts/tree nuts before the age of 12 months, and 43 introduced after. This means that 63% of those introduced before a year developed an allergy, while only 33% introduced later developed an allergy (p = 0.01). Although not significant, the results for egg, wheat, and peanut also demonstrated that earlier introduction may be associated with an increased risk of an allergy to that food. When only one child per family was considered, to exclude genetic confounders, the only significant value was for a milk allergy, in which 64% of children introduced before 12 months developed a food allergy, while only 18% of children introduced at or after 12 months developed one (p = 0.00). Results were similar even after the exclusion of child one and two. The results of this study concur with the recommendation of introducing milk after one year, but do not support earlier introduction to other food allergens in the general population.
The Human Mitochondrial Chaperonin: It Takes Two Single-Rings To Tango, Adrian Sergio Enriquez
The Human Mitochondrial Chaperonin: It Takes Two Single-Rings To Tango, Adrian Sergio Enriquez
Open Access Theses & Dissertations
The human mitochondrial chaperonin is a macromolecular machine that catalyzes the proper folding and assembly of newly imported mitochondrial proteins into their biologically active state. It is composed of two proteins from the highly conserved heat shock protein family, hsp10 and hsp60, that assemble into large oligomeric complexes responsible for mediating the folding of non-native polypeptides in an ATP dependent manner. In addition to its innate role in protein folding, human mitochondrial hsp60 has been implicated in numerous moonlighting cellular activities that have been linked to diseases conditions such as cancer and neurodegeneracy. In light of its cellular importance, the …
The Prohibitin Protein Complex Promotes Mitochondrial Stabilization And Cell Survival In Hematologic Malignancies, Elisa Robles Escajeda
The Prohibitin Protein Complex Promotes Mitochondrial Stabilization And Cell Survival In Hematologic Malignancies, Elisa Robles Escajeda
Open Access Theses & Dissertations
Lymphocyte proliferation and differentiation is coordinated with high precision in healthy humans and is vital to maintaining a normal immune system. Imbalance of these events can result in the development of autoimmune diseases, immunodeficiencies and hematopoietic malignancies. These pathologies, specifically leukemia and lymphoma have a high incidence of relapse and mortality due to limited treatment options. Therefore, there is a critical need to characterize the signal transduction pathways and understand molecular hallmarks that mediate T cell activation in order to develop new strategies for diagnosis and treatments of these diseases.
Prohibitins (PHB1 and PHB2) have been proposed to play important …
Evaluation Of A Nutrition Education Program Targeting Home-Based Child Care Centers, Cassandra Nicole Urrutia
Evaluation Of A Nutrition Education Program Targeting Home-Based Child Care Centers, Cassandra Nicole Urrutia
Open Access Theses & Dissertations
Background: The development of a highly obesogenic culture promoting sedentary behavior and the consumption of calorie-dense foods has led to increased levels of overweight and obesity globally. While children and adults are both at increased risk of developing obesity, the risk is even higher in minority and low socioeconomic populations. Changes in familial structure and an increase in mothers of younger children (below the age of 6) entering the workforce have created a new demand for child care services. Although some studies have researched the effectiveness of nutrition programs to increase healthy eating within the child care setting, few have …
The Effect Of Yoga Practice On Glucose Control, Physiological Stress, And Well-Being In Type 2 Diabetes: Exploring A Mechanism Of Action, Maricarmen Vizcaino
The Effect Of Yoga Practice On Glucose Control, Physiological Stress, And Well-Being In Type 2 Diabetes: Exploring A Mechanism Of Action, Maricarmen Vizcaino
Open Access Theses & Dissertations
Multiple studies have found yoga practice to be effective in improving glucose control and other health markers of adults with type 2 diabetes mellitus (T2DM). However, current findings cannot reach a consensus given multiple methodological inconsistencies. The primary purpose of this Dissertation work was to investigate the impact of yoga practice on the glucose control of participants with T2DM through two different approaches in two separate exploratory studies. The first study, a quasi-experimental design, examined the effect of eight weeks of yoga practice on glucose control taking into account previous limitations in the literature. The second study, a single-subject design, …
Biological Research On Burnout-Depression Overlap: Long-Standing Limitations And On-Going Reflections, Renzo Bianchi, Irvin Sam Schonfeld, Eric Laurent
Biological Research On Burnout-Depression Overlap: Long-Standing Limitations And On-Going Reflections, Renzo Bianchi, Irvin Sam Schonfeld, Eric Laurent
Publications and Research
In this commentary, we discuss seldom-noticed methodological problems affecting biological research on burnout and depression and make recommendations to overcome the limitations of past studies conducted in this area. First, we suggest that identified subtypes of depression (e.g., depression with melancholic features and depression with atypical features) should be taken into account in future biological research on burnout and depression, given that different subtypes of depression have been associated with distinct autonomic and neuroendocrine profiles. Second, we underline that research on burnout-depression overlap is made difficult by the absence of a consensual conceptualization and operationalization of burnout. In order to …
Inferring Infection Hazard In Wildlife Populations By Linking Data Across Individual And Population Scales, Kim M. Pepin, Shannon L. Kay, Ben D. Golas, Susan A. Shriner, Amy T. Gilbert, Ryan S. Miller, Andrea L. Graham, Steven Riley, Paul C. Cross, Michael D. Samuel, Mevin B. Hooten, Jennifer A. Hoeting, James O. Lloyd-Smith, Colleen T. Webb, Michael G. Buhnerkempe
Inferring Infection Hazard In Wildlife Populations By Linking Data Across Individual And Population Scales, Kim M. Pepin, Shannon L. Kay, Ben D. Golas, Susan A. Shriner, Amy T. Gilbert, Ryan S. Miller, Andrea L. Graham, Steven Riley, Paul C. Cross, Michael D. Samuel, Mevin B. Hooten, Jennifer A. Hoeting, James O. Lloyd-Smith, Colleen T. Webb, Michael G. Buhnerkempe
United States Department of Agriculture Wildlife Services: Staff Publications
Our ability to infer unobservable disease-dynamic processes such as force of infection (infection hazard for susceptible hosts) has transformed our understanding of disease transmission mechanisms and capacity to predict disease dynamics. Conventional methods for inferring FOI estimate a time-averaged value and are based on population-level processes. Because many pathogens exhibit epidemic cycling and FOI is the result of processes acting across the scales of individuals and populations, a flexible framework that extends to epidemic dynamics and links within-host processes to FOI is needed. Specifically, within-host antibody kinetics in wildlife hosts can be short-lived and produce patterns that are repeatable across …
Field-Based Evaluation Of A Male-Specific (F+) Rna Coliphage Concentration Method, J. C. Chandler, A. Pérez-Méndez, J. Paar Iii, M. M. Doolittle, B. Bisha, L. D. Goodridge
Field-Based Evaluation Of A Male-Specific (F+) Rna Coliphage Concentration Method, J. C. Chandler, A. Pérez-Méndez, J. Paar Iii, M. M. Doolittle, B. Bisha, L. D. Goodridge
United States Department of Agriculture Wildlife Services: Staff Publications
Fecal contamination of water poses a significant risk to public health due to the potential presence of pathogens, including enteric viruses. Therefore, sensitive, reliable and easy to use methods for the concentration, detection and quantification of microorganisms associated with the safety and quality of water are needed. In this study, we performed a field evaluation of an anion exchange resin-based method to concentrate male-specific (F + ) RNA coliphages (FRNA), fecal indicator organisms, from diverse environmental waters that were suspected to be contaminated with feces. In this system, FRNA coliphages are adsorbed to anion exchange resin and direct nucleic acid …
Comment On: ‘Blood Does Not Buy Goodwill: Allowing Culling Increases Poaching Of A Large Carnivore’, Kim M. Pepin, Shannon L. Kay, Amy J. Davis
Comment On: ‘Blood Does Not Buy Goodwill: Allowing Culling Increases Poaching Of A Large Carnivore’, Kim M. Pepin, Shannon L. Kay, Amy J. Davis
United States Department of Agriculture Wildlife Services: Staff Publications
Chapron & Treves [1] present a framework for examining effects of wolf culling policies on wolf population growth rate. They develop a population growth model that estimates an effect of the amount of time per year legal culling is allowed (‘policy effect’) on wolf population growth rates, separate from an effect of culling. They infer that there is substantial evidence for a negative relationship between the proportion of the year that the culling policy is in effect and the population growth rate because 83% of the posterior distribution for the policy effect parameter was negative. They conclude that when it …
A Method For The Improved Detection Of Aerosolized Influenza Viruses And The Male-Specific (F+) Rna Coliphage Ms2, J. C. Chandler, J. W. Schaeffer, M. Davidson, S. L. Magzamen, A. Pérez-Méndez, S. J. Reynolds, L. D. Goodridge, J. Volckens, A. B. Franklin, S. A. Shriner, B. Bisha
A Method For The Improved Detection Of Aerosolized Influenza Viruses And The Male-Specific (F+) Rna Coliphage Ms2, J. C. Chandler, J. W. Schaeffer, M. Davidson, S. L. Magzamen, A. Pérez-Méndez, S. J. Reynolds, L. D. Goodridge, J. Volckens, A. B. Franklin, S. A. Shriner, B. Bisha
United States Department of Agriculture Wildlife Services: Staff Publications
The detection of aerosolized viruses can serve as an important surveillance and control tool in agriculture, human health, and environmental settings. Here, we adapted an anion exchange resin-based method, initially developed to concentrate negatively charged viruses from water, to liquid impingement-based bioaerosol sampling. In this method, aerosolized viruses are collected in a 20 ml liquid sample contained within widely used impingers, BioSamplers (SKC Inc., Eighty Four, PA), and further concentrated via adsorption to an anion exchange resin that is suspended within this liquid. Viral nucleic acids are then extracted from the resin to facilitate molecular analyses through a reduction in …
Addressing The Gender Gap In Distinguished Speakers At Professional Ecology Conferences, Cooper M. Farr, Sara P. Bombaci, Travis Gallo, Anna M. Mangan, Hannah L. Riedl, Lani T. Stinson, Kate Wilkins, Drew E. Bennett, Theresa Nogeire-Mcrae, Liba Pejchar
Addressing The Gender Gap In Distinguished Speakers At Professional Ecology Conferences, Cooper M. Farr, Sara P. Bombaci, Travis Gallo, Anna M. Mangan, Hannah L. Riedl, Lani T. Stinson, Kate Wilkins, Drew E. Bennett, Theresa Nogeire-Mcrae, Liba Pejchar
United States Department of Agriculture Wildlife Services: Staff Publications
Keynote and plenary speakers at professional conferences serve as highly visible role models for early-career scientists and provide recognition of scientific excellence. This recognition may be particularly important for women, who are underrepresented in senior positions in the biological sciences. To evaluate whether conferences fulfill this potential, we examined distinguished speakers at North American ecology conferences between 2000 and 2015 and compared these data with the percentage of women ecologists at diverse career stages. We found that 15%–35% (x = 28%, n = 809) of the distinguished speakers were women, which is significantly lower than the percentage of female ecology …
Fine-Scale Assessment Of Home Ranges And Activity Patterns For Resident Black Vultures (Coragyps Atratus) And Turkey Vultures (Cathartes Aura), Amanda E. Holland, Michael E. Byrne, A. Lawrence Bryan, Travis L. Devault, Olin E. Rhodes Jr., James C. Beasley
Fine-Scale Assessment Of Home Ranges And Activity Patterns For Resident Black Vultures (Coragyps Atratus) And Turkey Vultures (Cathartes Aura), Amanda E. Holland, Michael E. Byrne, A. Lawrence Bryan, Travis L. Devault, Olin E. Rhodes Jr., James C. Beasley
United States Department of Agriculture Wildlife Services: Staff Publications
Knowledge of black vulture (Coragyps atratus) and turkey vulture (Cathartes aura) spatial ecology is surprisingly limited despite their vital ecological roles. Fine-scale assessments of space use patterns and resource selection are particularly lacking, although development of tracking technologies has allowed data collection at finer temporal and spatial resolution. Objectives of this study were to conduct the first assessment of monthly home range and core area sizes of resident black and turkey vultures with consideration to sex, as well as elucidate differences in monthly, seasonal, and annual activity patterns based on fine-scale movement data analyses. We collected …
Comparison Of A Micro-Neutralization Test With The Rapid Fluorescent Focus Inhibition Test For Measuring Rabies Virus Neutralizing Antibodies, Todd G. Smith, Amy T. Gilbert
Comparison Of A Micro-Neutralization Test With The Rapid Fluorescent Focus Inhibition Test For Measuring Rabies Virus Neutralizing Antibodies, Todd G. Smith, Amy T. Gilbert
United States Department of Agriculture Wildlife Services: Staff Publications
The rapid fluorescent focus inhibition test (RFFIT) is routinely used in the United States to measure rabies virus neutralizing antibodies (rVNA). RFFIT has a long history of reproducible and reliable results. The test has been modified over the years to use smaller volumes of reagents and samples, but requires a 50 μL minimum volume of test serum. To conduct pathogenesis studies, small laboratory animals such as mice are regularly tested for rVNA, but the minimum volume for a standard RFFIT may be impossible to obtain, particularly in scenarios of repeated sampling. To address this problem, a micro-neutralization test was developed …
Ontogenetic And Ecological Variation In Invasion Risk Of Brown Treesnakes (Boiga Irregularis) On Guam, Shane R. Siers, Julie A. Savidge, Robert N. Reed
Ontogenetic And Ecological Variation In Invasion Risk Of Brown Treesnakes (Boiga Irregularis) On Guam, Shane R. Siers, Julie A. Savidge, Robert N. Reed
United States Department of Agriculture Wildlife Services: Staff Publications
Size structure within populations of invasive species may have consequences for relative risk at all stages of the invasion process, with implications for management interventions such as interdiction, suppression, and eradication. To assess relative distributions of invasive Brown Treesnakes (Boiga irregularis) among demographic categories of management interest, we undertook the most comprehensive and controlled sampling in > 25 years of research into this ecologically and economically destructive introduced predator. We collected a seasonally-balanced sample of 100 snakes from each of 18 sites, stratified by six habitat types, encompassing the species’ entire extralimital range. Samples indicated significant differences in distributions …
The Impact Of Poverty On Dog Ownership And Access To Canine Rabies Vaccination: Results From A Knowledge, Attitudes And Practices Survey, Uganda 2013, Ryan M. Wallace, Jason Mehal, Yoshinori Nakazawa, Sergio Recuenco, Barnabas Bakamutumaho, Modupe Osinubi, Victor Tugumizemu, Jesse D. Blanton, Amy T. Gilbert, Joseph Wamala
The Impact Of Poverty On Dog Ownership And Access To Canine Rabies Vaccination: Results From A Knowledge, Attitudes And Practices Survey, Uganda 2013, Ryan M. Wallace, Jason Mehal, Yoshinori Nakazawa, Sergio Recuenco, Barnabas Bakamutumaho, Modupe Osinubi, Victor Tugumizemu, Jesse D. Blanton, Amy T. Gilbert, Joseph Wamala
United States Department of Agriculture Wildlife Services: Staff Publications
Background: Rabies is a neglected disease despite being responsible for more human deaths than any other zoonosis. A lack of adequate human and dog surveillance, resulting in low prioritization, is often blamed for this paradox. Estimation methods are often employed to describe the rabies burden when surveillance data are not available, however these figures are rarely based on country-specific data.
Methods: In 2013 a knowledge, attitudes, and practices survey was conducted in Uganda to understand dog population, rabies vaccination, and human rabies risk factors and improve in-country and regional rabies burden estimates. Poisson and multi-level logistic regression techniques were conducted …
History Of Regulations, Policy, And Research Related To Conflicts Between Blackbirds And People, George M. Linz, Michael L. Avery, Richard A. Dolbeer
History Of Regulations, Policy, And Research Related To Conflicts Between Blackbirds And People, George M. Linz, Michael L. Avery, Richard A. Dolbeer
United States Department of Agriculture Wildlife Services: Staff Publications
The United States and Canada have invested substantial resources over the past 60 years for developing methods to reduce blackbird (Icteridae) damage to agricultural crops, to manage large winter roosts that create nuisance and public health problems, and to mitigate conflicts with endangered species. It is an indication of the challenging nature of the conflicts with these abundant, highly mobile birds that we are still attempting to improve existing methods and develop new approaches to mitigate the problems. Scientists have tested chemical frightening agents and repellents, mechanical scare devices, bird-resistant sunflowers, decoy crops, habitat management, population management, and cultural modifications …
Low Viral Doses Are Sufficient To Infect Cottontail Rabbits With Avian Influenza A Virus, J. Jeffrey Root, Susan A. Shriner, Jeremy W. Ellis, Kaci K. Vandalen, Heather J. Sullivan
Low Viral Doses Are Sufficient To Infect Cottontail Rabbits With Avian Influenza A Virus, J. Jeffrey Root, Susan A. Shriner, Jeremy W. Ellis, Kaci K. Vandalen, Heather J. Sullivan
United States Department of Agriculture Wildlife Services: Staff Publications
Influenza A viruses (IAVs) have been reported in wild lagomorphs in environments where they share resources with waterfowl. Recent studies have conclusively shown that a North American lagomorph, cottontail rabbits (Sylvilagus sp.), become infected following exposure to IAVs and can shed significant quantities of virus. However, the minimum infectious dose and the efficiency of various routes of infection have not been evaluated. Thirty-six cottontail rabbits were used in a dose response study assessing both the oral and nasal routes of infection. The nasal route of infection proved to be the most efficient, as all cottontail rabbits shed viral RNA …
Demographic And Temporal Variations In Immunity And Condition Of Polar Bears (Ursus Maritimus) From The Southern Beaufort Sea, Lorin A. Neuman-Lee, Patricia A. Terletzky, Todd C. Atwood, Eric M. Gese, Geoffrey D. Smith, Sydney Greenfield, John Pettit, Susannah S. French
Demographic And Temporal Variations In Immunity And Condition Of Polar Bears (Ursus Maritimus) From The Southern Beaufort Sea, Lorin A. Neuman-Lee, Patricia A. Terletzky, Todd C. Atwood, Eric M. Gese, Geoffrey D. Smith, Sydney Greenfield, John Pettit, Susannah S. French
United States Department of Agriculture Wildlife Services: Staff Publications
Assessing the health and condition of animals in their natural environment can be problematic. Many physiological metrics, including immunity, are highly influenced by specific context and recent events to which researchers may be unaware. Thus, using a multifaceted physiological approach and a context-specific analysis encompassing multiple time scales can be highly informative. Ecoimmunological tools in particular can provide important indications to the health of animals in the wild.We collected blood and hair samples from free-ranging polar bears (Ursus maritimus) in the southern Beaufort Sea and examined the influence of sex, age, and reproductive status on metrics of immunity, …
Ante-Mortem Detection Of Chronic Wasting Disease In Recto-Anal Mucosa-Associated Lymphoid Tissues From Elk (Cervus Elaphus Nelsoni) Using Real-Time Quaking-Induced Conversion (Rt-Quic) Assay: A Blinded Collaborative Study, Sireesha Manne, Naveen Kondru, Tracy Nichols, Aaron Lehmkuhl, Bruce Thomsen, Rodger Main, Patrick Halbur, Somak Dutta, Anumantha G. Kanthasamy
Ante-Mortem Detection Of Chronic Wasting Disease In Recto-Anal Mucosa-Associated Lymphoid Tissues From Elk (Cervus Elaphus Nelsoni) Using Real-Time Quaking-Induced Conversion (Rt-Quic) Assay: A Blinded Collaborative Study, Sireesha Manne, Naveen Kondru, Tracy Nichols, Aaron Lehmkuhl, Bruce Thomsen, Rodger Main, Patrick Halbur, Somak Dutta, Anumantha G. Kanthasamy
United States Department of Agriculture Wildlife Services: Staff Publications
Prion diseases are transmissible spongiform encephalopathies (TSEs) characterized by fatal, progressive neurologic diseases with prolonged incubation periods and an accumulation of infectious misfolded prion proteins. Antemortem diagnosis is often difficult due to a long asymptomatic incubation period, differences in the pathogenesis of different prions, and the presence of very low levels of infectious prion in easily accessible samples. Chronic wasting disease (CWD) is a TSE affecting both wild and captive populations of cervids, including mule deer, white-tailed deer, elk, moose, muntjac, and most recently, wild reindeer. This study represents a well-controlled evaluation of a newly developed real-time quaking-induced conversion (RT-QuIC) …
Livestock Guarding Dogs Today: Possible Solutions To Perceived Limitations, Silvia Ribeiro, Jenny Dornig, Ana Guerra, Jasna Jeremic, Jean-Marc Landry, Daniel Mettler, Vicente Palacios, Ueli Pfister, Simone Ricci, Robin Rigg, Valeria Salvatori, Sider Sedefchev, Elena Tsingarska, Linda Van Bommel, Luisa Vielmi, Julie K. Young, Margherita Zingaro
Livestock Guarding Dogs Today: Possible Solutions To Perceived Limitations, Silvia Ribeiro, Jenny Dornig, Ana Guerra, Jasna Jeremic, Jean-Marc Landry, Daniel Mettler, Vicente Palacios, Ueli Pfister, Simone Ricci, Robin Rigg, Valeria Salvatori, Sider Sedefchev, Elena Tsingarska, Linda Van Bommel, Luisa Vielmi, Julie K. Young, Margherita Zingaro
United States Department of Agriculture Wildlife Services: Staff Publications
Exchanging experience and finding solutions to problems facing the use of livestock guarding dogs (LGDs) in modern societies were among the goals of a meeting organized in Portugal from 20th to 21st October 2015 within the scope of the LIFE MedWolf Project (www.medwolf.eu). The meeting was attended by 16 specialists from around Europe (Portugal, Spain, France, Switzerland, Italy, Croatia, Slovakia and Bulgaria), as well as from Australia and the USA.
In this article we outline constraints on the use of LGDs identified during the meeting and summarize the main solutions proposed. We have grouped the issues into 10 main topics …
Seasonal Effects Of Wind Conditions On Migration Patterns Of Soaring American White Pelican, Javier Gutierrez Illan, Guiming Wang, Fred L. Cunningham, D. Tommy King
Seasonal Effects Of Wind Conditions On Migration Patterns Of Soaring American White Pelican, Javier Gutierrez Illan, Guiming Wang, Fred L. Cunningham, D. Tommy King
United States Department of Agriculture Wildlife Services: Staff Publications
Energy and time expenditures are determinants of bird migration strategies. Soaring birds have developed migration strategies to minimize these costs, optimizing the use of all the available resources to facilitate their displacement. We analyzed the effects of different wind factors (tailwind, turbulence, vertical updrafts) on the migratory flying strategies adopted by 24 satellite-tracked American white pelicans (Pelecanus erythrorhynchos) throughout spring and autumn in North America. We hypothesize that different wind conditions encountered along migration routes between spring and autumn induce pelicans to adopt different flying strategies and use of these wind resources. Using quantile regression and fine-scale atmospheric …
Restricted Cross-Scale Habitat Selection By American Beavers, Robert A. Francis, Jimmy D. Taylor, Eric Dibble, Bronson Strickland, Vanessa M. Petro, Christine Easterwood, Guiming Wang
Restricted Cross-Scale Habitat Selection By American Beavers, Robert A. Francis, Jimmy D. Taylor, Eric Dibble, Bronson Strickland, Vanessa M. Petro, Christine Easterwood, Guiming Wang
United States Department of Agriculture Wildlife Services: Staff Publications
Animal habitat selection, among other ecological phenomena, is spatially scale dependent. Habitat selection by American beavers Castor canadensis (hereafter, beaver) has been studied at singular spatial scales, but to date no research addresses multi-scale selection. Our objectives were to determine if beaver habitat selection was specialized to semiaquatic habitats and if variables explaining habitat selection are consistent between landscape and fine spatial scales. We built maximum entropy (MaxEnt) models to relate landscape-scale presence-only data to landscape variables, and used generalized linearmixed models to evaluate fine spatial scale habitat selection using global positioning system (GPS) relocation data. Explanatory variables between the …
A Review Of Virulent Newcastle Disease Viruses In The United States And The Role Of Wild Birds In Viral Persistence And Spread, Vienna R. Brown, Sarah N. Bevins
A Review Of Virulent Newcastle Disease Viruses In The United States And The Role Of Wild Birds In Viral Persistence And Spread, Vienna R. Brown, Sarah N. Bevins
United States Department of Agriculture Wildlife Services: Staff Publications
Newcastle disease is caused by virulent strains of Newcastle disease virus (NDV), which causes substantial morbidity and mortality events worldwide in poultry. The virus strains can be differentiated as lentogenic, mesogenic, or velogenic based on a mean death time in chicken embryos. Currently, velogenic strains of NDV are not endemic in United States domestic poultry; however, these strains are present in other countries and are occasionally detected in wild birds in the U.S. A viral introduction into domestic poultry could have severe economic consequences due to the loss of production from sick and dying birds, the cost of control measures …
The 17th Rocky Mountain Virology Association Meeting, Joel Rovnak, Rushika Perera, Matthew W. Hopken, Jenna Read, Derrick M. Waller, Randall J. Cohrs
The 17th Rocky Mountain Virology Association Meeting, Joel Rovnak, Rushika Perera, Matthew W. Hopken, Jenna Read, Derrick M. Waller, Randall J. Cohrs
United States Department of Agriculture Wildlife Services: Staff Publications
Since 2000, scientists and students from the greater Rocky Mountain region, along with invited speakers, both national and international, have gathered at the Mountain Campus of Colorado State University to discuss their area of study, present recent findings, establish or strengthen collaborations, and mentor the next generation of virologists and prionologists through formal presentations and informal discussions concerning science, grantsmanship and network development. This year, approximately 100 people attended the 17th annual Rocky Mountain Virology Association meeting, that began with a keynote presentation, and featured 29 oral and 35 poster presentations covering RNA and DNA viruses, prions, virus-host interactions and …
Vaccination Status And Factors For Non- Vaccination In Children At A Tertiary Care Hospital, Shiyam Sunder Tikmani, Tufail Soomro, Sumera Aziz Ali
Vaccination Status And Factors For Non- Vaccination In Children At A Tertiary Care Hospital, Shiyam Sunder Tikmani, Tufail Soomro, Sumera Aziz Ali
Community Health Sciences
Immunization is a very effective strategy to prevent against common infectious disease. The objectives of the study were to determine the immunization status and reasons for non-vaccination of children coming to Civil Hospital Sukkur. This cross-sectional study was conducted pediatric OPD at Civil Hospital Sukkur from January 1, 2013, to June 30, 2013. Parents of children under five years of age brought their child to Outpatient Department of Civil Hospital Sukkur for any illness were asked to participate in the study. Parents who gave informed consent were included in the study. Data were collected using a small questionnaire by the …
Computational Methods For Prediction And Classification Of G Protein-Coupled Receptors, Khodeza Begum
Computational Methods For Prediction And Classification Of G Protein-Coupled Receptors, Khodeza Begum
Open Access Theses & Dissertations
G protein-coupled receptors (GPCRs) constitute the largest group of membrane receptor proteins in eukaryotes. Due to their significant roles in many physiological processes such as vision, smell, and inflammation, GPCRs are the targets of many prescribed drugs. However, the functional and structural diversity of GPCRs has kept their prediction and classification based on amino acid sequence data as a challenging bioinformatics problem. As existing computational methods to predict and classify GPCRs are focused on mammalian (mostly human) data, the ultimate goal of our project is to establish an ensemble approach and implement a web-based software that can be used reliably …