Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"attack rate"”.
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Computer Virus Spread Containment Using Feedback Control.
… thesis detects one important anomaly of virus attack, rate of outgoing connection. Though there are other anomalies of a virus attack, rate of outgoing connection is an important one to contain the spread. Based on the feedback model, this symptom is fed back and a state model using queuing …
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Fire fighters' ability and willingness to participate in a pandemic
… Fire departments should anticipate a higher attack rate for their personnel because of increased exposure risk. Additionally, many variables will negatively influence fire fighter participation rates over and above these attack rates. This thesis analyzes fire fighters' ability and …
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A High Performance C++ Generic Benchmark for Computational Epidemiology
… (age, gender, income etc.) and the disease (attack rate, etc.) and compute the spread under various configuration and plausible intervention strategies (such as vaccinations, school closure, etc.). Hence, the model and the computation form a complex agent based system and are highly compute …
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Effects of prey distribution on resource defense, foraging behavior, and growth in stream-dwelling Arctic char (Salvelinus alpinus)
Animals exhibit variable competitive strategies in response to the distribution of critical resources, ranging from indirect interactions during resource depletion (i.e., exploitative competition) to direct attacks and monopolization (i.e., interference competition). Spatial distribution of …
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Micro air vehicle motion tracking and aerodynamic modeling
… flights. In addition, the airspeed, angle of attack, and sideslip angle were also determined from the trajectories. Results for low angles of attack (less than approximately 20 deg) showed the lift, drag, and moment coefficients during nominal gliding flight. For the lift curve, the results …
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International Externalities in Pandemic Influenza Mitigation
… more of its population this both reduces the attack rate in the other country and increases the marginal benefit from additional treatment in the other country. These externalities and complementarities may mean that self-interested rich countries should optimally pay for some AV treatment in …
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The occurrence and distribution of microplastics in surficial sediments and fish in a South African reservoir
… was used to assess relationships among substrate embeddedness, sediment organic matter, human population density, microplastics particle densities and microplastics characteristics. Subsequently, the functional response approach was developed and applied for quantifications of microplastics …
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Site fidelity and territorial behaviour of some migratory passerine species overwintering in the Mediterranean area
… and non-territorial birds. Adult males attacked conspecifics at the same rate whether they had adult of female-like plumage (juvenile males and females) which does not support the winter adaptation hypothesis of the delayed plumage maturation in this species (cf. Rohwer & Butcher 1988). …
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Assessmnet of the Performance of the Integrated Disease Surveillance and Response System in Zambia
… Organisation for Africa Regions’ (WHO-AFRO) Integrated Disease Surveillance and Response strategy (IDSR) to monitor, control and prevent priority notifiable infectious diseases in the country. Through the strategy, all activities pertaining to disease surveillance are coordinated and streamlined …
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Assessmnet of the Performance of the Integrated Disease Surveillance and Response System in Zambia
… Organisation for Africa Regions’ (WHO-AFRO) Integrated Disease Surveillance and Response strategy (IDSR) to monitor, control and prevent priority notifiable infectious diseases in the country. Through the strategy, all activities pertaining to disease surveillance are coordinated and streamlined …
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Habitat use by wintering passerines in fire-managed forests along the U.S. Gulf Coast
… kinglets based on structural body size. Foraging attack type varied in regards to the burn treatment, but total attack rate did not. Body size was a strong indicator of the timing of spring departure, which may explain some of the overlap between the departure times of the age/sex classes. My …
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An Epidemic Model Structured By The Time Since Last Infection
… and once-infected), with the transmission rate and susceptibility to reinfection being dependent on the TSLI, and optional vital dynamics. The TSLI model serves as a motivation to develop some general theory to treat models structured by several time-like variables as age-dependent …
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The effect of individual variability and larger carnivores on the functional response of cheetahs
… quantify how predator hunting behaviors such as rate of successful attack and time spent handling prey interact with prey density to determine the rate at which prey are killed. Cheetahs are mesopredators and their behavior can be shaped by the need to avoid larger predators while hunting …
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Population Ecology and Foraging Behavior of Breeding Birds in Bottomland Hardwood Forests of the Lower Roanoke River
… equal in the two habitats. Annual return rates for plot immigrants vs. previous residents did not differ in swamps. In levees, newly arriving birds were less likely to return the following year than previous residents. Immigrants most likely occupied low quality sites and dispersed in an …
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Long-term follow-up of neonates who have been immunized with hepatitis B vaccine
… positive as well as HBsAg positive. The overall attack rate for ages 2 to 8years was 5.1%; the carrier rate was 2.3% and the seropositivity rate (>=10 mIU/ml) was 87.9%. The geometric mean titres of anti-HBs varied from a high of 272 mIU/ml at age two to a low of 23 mIU/ml at age seven. Vaccine …
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A comprehensive study of Salmonella infections and microbial analysis of probiotics on beef cattle
… Salmonella, considering factors such as illness rates, exposure, and bacterial loads. This review included 42 articles that provided data necessary for fitting a dose-response model to empirical data that describes how dose, virulence group, and food vector affect illness (attack) rates. Results …
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From data to mathematical analysis and simulation in models in epidemiology and ecology
… of Trento, Italy. These data were used to calibrate a discrete-time SIR model, which was designed to estimate the probabilities of influenza transmission within the classes, grades and schools using Markov Chain Monte Carlo (MCMC) methods. We found that the virus was mainly transmitted within …
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Assessment and prediction of the potential threats of temperature change and invasive species to the sustainability of Northern Irish sea fisheries
… found that red light reduced the maximum feeding rate of lionfish, compared to blue and white light, by dampening the attack rate. I assessed how temperature increase affects the proportional consumption of an amphipod prey by an intertidal predator, the bleniid, Lipophrys pholis (Linnaeus, 1758). …
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An integrative approach to testing density effects in a migratory songbird, the Prothonotary Warbler (Protonotaria citrea)
… reproductive output, nestling provisioning rates, and nestling body condition prior to fledging to test for effects of density on the annual fecundity of warblers. My results suggested that warbler annual fecundity was unaffected by local conspecific densities. Warbler parents in …