- Stochastic processes and statistical mechanics
- Helminth infection and control
- Statistical Methods and Inference
- Bayesian Methods and Mixture Models
- Parasite Biology and Host Interactions
- Coccidia and coccidiosis research
- Theoretical and Computational Physics
- Parasites and Host Interactions
- Advanced Statistical Methods and Models
- Stochastic processes and financial applications
- Financial Risk and Volatility Modeling
- Markov Chains and Monte Carlo Methods
- Probability and Risk Models
- Statistical Methods and Bayesian Inference
- Statistical Distribution Estimation and Applications
- Statistical Methods in Clinical Trials
- Genetic and phenotypic traits in livestock
- Advanced Statistical Process Monitoring
- Animal Nutrition and Physiology
- Mathematical Dynamics and Fractals
- Veterinary Equine Medical Research
- Optimal Experimental Design Methods
- Mathematical and Theoretical Epidemiology and Ecology Models
- Asthma and respiratory diseases
- Control Systems and Identification
George Mason University
2014-2025
St. George's University
2022
Bridge University
2022
University of Milan
2017
University of Copenhagen
2014
University of Kentucky
2013
Dallas County
2013
Cornell University
2005-2010
University of Wisconsin–Madison
2003-2010
University of Georgia
2000-2007
Abstract Objective —To determine prevalence of anthelmintic resistance in cyathostome nematodes horses the southern United States. Design —Cross-sectional study. Animals —786 on 44 farms and stables Georgia, South Carolina, Florida, Kentucky, Louisiana. Procedure —Fecal egg count (FEC) reduction tests were performed large stables. Horses each farm treated with an oral paste formulation fenbendazole, oxibendazole, pyrantel pamoate, or ivermectin at recommended label dosages. A mixed linear...
Many new diagnostic in-house tests for identification of feline immunodeficiency virus (FIV) and leukaemia (FeLV) infection have been licensed use in veterinary practice, the question relative merits these kits has prompted comparative studies. This study was designed to define strengths weaknesses seven FIV eight FeLV that are commercially available. In this study, 536 serum samples from randomly selected cats were tested. Those reacting FIV-positive at least one confirmed by Western blot,...
To determine the effects of treatment with and without adjuvant radiation therapy on recurrence ocular adnexal squamous cell carcinoma (SCC) at specific anatomic locations in horses.Retrospective study.91 horses.Medical records horses histologically confirmed SCC evaluated from 1985 to 2002 were reviewed. Sex, breed, age, type treatment, location, recorded. Two groups determined by SCCs treated established.The site highest rate was limbus (junction cornea sclera) or bulbar conjunctiva...
Hellinger distance has been widely used to derive objective functions that are alternatives maximum likelihood methods. Motivated by recent regulatory privacy requirements, estimators satisfying differential constraints being derived. In this paper, we describe different notions of using divergences and establish minimizes the added variance within class power for an additive Gaussian mechanism. We demonstrate a new definition privacy, namely shares several features standard notion while...
Ancestral inference for branching processes in random environments involves determining the ancestor distribution parameters using population sizes of descendant generations. In this paper, we introduce a new methodology ancestral utilizing generalized method moments. We demonstrate that estimator's behavior is critically influenced by coefficient variation environment sequence. Furthermore, despite process's evolution being heavily dependent on offspring means various generations, show...
An adaptive allocation design for phase III clinical trials that incorporates covariates is described. The scheme maps the covariate-adjusted odds ratio from a logistic regression model onto [0, 1]. Simulations assume both staggered entry and time to response are random follow known probability distribution can depend on treatment assigned, patient's response, covariate, or trend. Confidence intervals slightly anticonservative under null hypothesis, but power similar equal various...
Let $ \{Z_{n}, n \ge 1 \}$ be a single type supercritical Galton--Watson process with mean $EZ_{1} \equiv m$, initiated by ancestor. This paper studies the large deviation behavior of sequence $\{R_n \frac{Z_{n+1}}{Z_n}\dvtx and establishes "phase transition" in rates depending on whether $r$, maximal number moments possessed offspring distribution, is less than, equal to or greater than Schröder constant $\alpha$. done via careful analysis harmonic $Z_n$.
An important factor in efficient production of poultry is management parasites. Ascaridia dissimilis the most prevalent small intestinal nematode parasite turkeys with up to 100% flocks infected. High worm burdens can cause necrotic enteritis leading high mortality flocks. Recently, we were made aware multiple cases where seen at slaughter despite administration anthelmintics frequent intervals, suggesting that resistance may have evolved A. dissimilis. To address this issue, obtained eggs...
Plasma biochemistry, iohexol clearance, endoscopic renal evaluation, and biopsy were performed in 23 clinically healthy 2-yr-old green iguanas (Iguana iguana). Mean (±SD) values for packed cell volume (30 ± 3%), total protein (62 7 g/L, 6.2 0.7 g/dl), albumin (25 2 2.5 0.2 globulin (37 6 3.7 0.6 g/ dl), calcium (3.0 mmol/L, 12.0 mg/dl), ionized (1.38 0.1 mmol/L), phosphorus (1.32 0.28 4.1 0.9 uric acid (222 100 μmol/L, 3.8 1.7 sodium (148 3 mmol/L or mEq/ L), potassium (2.6 0.4 mEq/L)...
SUMMARY Resistance to anthelmintics in gastrointestinal nematodes of livestock is a serious problem and appropriate methods are required identify quantify resistance. However, quantification assessment resistance depend on an accurate measure treatment efficacy, current methodologies fail properly address the issue. The fecal egg count reduction test (FECRT) practical gold standard for measuring anthelmintic efficacy farms, but these types data fraught with high variability that greatly...
Abstract Assessing genome-wide statistical significance is an important issue in genetic studies. We describe a new resampling approach for determining the appropriate thresholds significance. Our simulation results demonstrate that proposed accurately controls type I error rate even under large p small n situations.
In this paper we study several aspects of the growth a supercritical Galton-Watson process {Z_n:n\ge1}, and bring out some criticality phenomena determined by Schroder constant. We develop local limit theory Z_n, that is, behavior P(Z_n=v_n) as v_n\nearrow \infty, use to conditional large deviations {Y_{Z_n}:n\ge1}, where Y_n satisfies an LDP, particularly {Z_n^{-1}Z_{n+1}:n\ge1} conditioned on Z_n\ge v_n.