A5005213347- Data Mining Algorithms and Applications
- Avian ecology and behavior
- Rough Sets and Fuzzy Logic
- Nutritional Studies and Diet
- Obesity, Physical Activity, Diet
- Animal Behavior and Reproduction
- Bayesian Methods and Mixture Models
- Gut microbiota and health
- Advanced Clustering Algorithms Research
- Food Security and Health in Diverse Populations
- Genetic diversity and population structure
- Wildlife Ecology and Conservation
- Agriculture and Biological Studies
- Cutaneous Melanoma Detection and Management
- Agriculture Sustainability and Environmental Impact
- Genetic Associations and Epidemiology
- Imbalanced Data Classification Techniques
- Bat Biology and Ecology Studies
- Gestational Diabetes Research and Management
- Birth, Development, and Health
- Gene expression and cancer classification
- Amphibian and Reptile Biology
- Child Nutrition and Feeding Issues
- Wine Industry and Tourism
- Genetic and phenotypic traits in livestock
Thompson Rivers University
2018-2024
McMaster University
2015-2020
Impact
2017-2020
Hamilton Health Sciences
2017
Population Health Research Institute
2017
Canadian Respiratory Research Network
2017
University of Guelph
2010
The infant gut is rapidly colonized by microorganisms soon after birth, and the composition of microbiota dynamic in first year life. Although a stable microbiome may not be established until 1 to 3 years appears an important predictor health outcomes later We obtained stool at one age from 173 white Caucasian 182 South Asian infants two Canadian birth cohorts gain insight into how maternal early infancy exposures influence development microbiota. investigated whether differed ethnicity...
The reasons for the increased risk of gestational diabetes among South Asian women are not well understood. We sought to identify determinants and its impact on newborn health in a prospective birth cohort their babies.As part Birth Cohort (START) study Ontario, we recruited 1012 with singleton pregnancies second trimester pregnancy between July 11, 2011, Nov. 10, 2015. collected information physical measurements administered an oral glucose tolerance test. weight skinfold thickness were...
Birth weight is an indicator of newborn health and a strong predictor outcomes in later life. Significant variation diet during pregnancy between ethnic groups high-income countries provides ideal opportunity to investigate the influence maternal on birth weight.Four multiethnic cohorts based Canada (the NutriGen Alliance).3997 full-term mother-infant pairs diverse who had principal component analysis-derived pattern scores-plant-based, Western health-conscious-and data.No associations were...
To avoid energy allocation conflicts, birds generally separate breeding, migration and moult during the annual cycle. North American passerines typically on breeding grounds prior to autumn migration. However, some have evolved a moult-migration strategy in which they delay until stopping over Rohwer et al . (2005) proposed ‘push–pull hypothesis' as an explanation for evolution of this strategy, but it has not been empirically tested. Poor conditions at end summer would push depart moult,...
Abstract Bird migration is typically associated with a latitudinal movement from north to south and vice versa. However, many bird species migrate seasonally an upslope or downslope in process termed altitudinal migration. Globally, 830 of the 6,579 Passeriformes are considered migrants this pattern has emerged multiple times across 77 families order. Recent work indicated association between diet, but none have looked at diet as potential evolutionary driver. Here, we investigated drivers...
Abstract Diagnostic or screening tests are widely used in medical fields to classify patients according their disease status. Several statistical models for meta‐analysis of diagnostic test accuracy studies have been developed synthesize sensitivity and specificity a interest. Because the correlation between specificity, modeling two measures using bivariate model is recommended. In this paper, we extend current standard linear mixed (LMM) by proposing variance‐stabilizing transformations:...
Interestingness measures provide information about association rules. The value of an interestingness measure is often interpreted relative to the overall range measure. However, properties individual rules can further restrict what achieve. These additional constraints are not typically taken into account in analysis, potentially misleading investigator. Considering this constrained provides greater insight than original alone and even alter researchers' impressions data. Standardizing...
Background The global prevalence of childhood eczema has increased over the last few decades, with a marked increase in high-income countries. Differences between countries and ethnicities suggest that genetic early modifiable environmental factors, such as dietary intake, may underlie this observation. To investigate association pregnancy diet infant consortium prospective Canadian birth cohorts predominantly comprised white Europeans South Asians. Methods We evaluated maternal patterns...
A method for clustering incomplete longitudinal data, and gene expression time course data in particular, is presented. Specifically, an existing that utilizes mixtures of multivariate Gaussian distributions with modified Cholesky-decomposed covariance structure extended to accommodate data. Parameter estimation carried out a fashion similar expectation-maximization algorithm. We focus on the particular application In this application, our approach gives good performance when compared...
Abstract Molt is critical for birds as it replaces damaged feathers and worn plumage, enhancing flight performance, thermoregulation, communication. In passerines, molt generally occurs on the breeding grounds during postbreeding period once a year. However, some species of migrant passerines that breed in Nearctic Western Palearctic regions have evolved different molting strategies involve overwintering grounds. Some forego instead complete their prebasic Other or all second time...
The elaborate ornamental plumage displayed by birds has largely been attributed to sexual selection, whereby the greater success of ornamented males in attaining mates drives a rapid elaboration those ornaments. Indeed, tends be greatest species with high variance reproductive such as polygynous mating systems. Even among socially monogamous species, many are extremely colourful. In their now-classic study, Møller and Birkhead (1994) suggested that increased afforded extra-pair paternity...
Abstract We investigated the influence of conspecific and heterospecific neighbours on reproductive success mountain bluebirds ( Sialia currucoides ) tree swallows Tachycineta bicolor over eight breeding seasons. The abundance was negatively associated with in but positively during early nesting period (i.e., hatching rate). For bluebirds, neighbour higher fledging rate) later stages period; same true for swallows. These findings could be explained by either positive behavioural interactions...
Abstract Association rule mining is a knowledge discovery technique which informs researchers about relationships between variables in data. These can be focused to specific set of response variables. We propose an augmented version this method discover groups genotypes relate outcomes. derive the methodology find these candidate and illustrate how works on data regarding neuroinvasive complications West Nile virus through simulation.
Interestingness measures provide information that can be used to prune or select association rules. A given value of an interestingness measure is often interpreted relative the overall range values take. However, properties individual rules restrict achieve. An interesting standardized take this into account, but has only been done for one date, i.e., lift. Standardization provides greater insight than raw and may even alter researchers' perception data. We derive analogues three use real...
Abstract Microbiomes, populations of microscopic organisms, have been found to be related human health and it is expected further investigations will lead novel perspectives disease. The data used analyze microbiomes one the newest types (the result high-throughput technology) means these still rapidly evolving. One distributions that introduced into microbiome literature, Dirichlet-Multinomial, has received considerable attention. We extend this distribution’s use uncover compositional...
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