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Biometry (Latest Articles)
Latest indexed articles for 'Biometry'
Articles 161 to 170 of 200:
28 Apr 2009
Propensity scores have been used widely as a bias reduction method to estimate the treatment effect in nonrandomized studies. Since many covariates are generally included in the model for estimating the propensity scores, the proportion of subjects ...
rec_pub_19222021-propensity-score-estimation-missing-values-using-multiple-imputation.htm
Modeling disease-state transition heterogeneity through Bayesian variable selection.
28 Apr 2009
In many diseases, Markov transition models are useful in describing transitions between discrete disease states. Often the probability of transitioning from one state to another varies widely across subjects. This heterogeneity is driven, in part, ...
rec_pub_19206077-modeling-disease-state-transition-heterogeneity-bayesian-variable.htm
A biometric latent curve analysis of memory decline in older men of the NAS-NRC twin registry.
27 Apr 2009
Previous research has shown cognitive abilities to have different biometric patterns of age-changes. We examined the variation in episodic memory (word recall task) for over 6,000 twin pairs who were initially aged 59-75, and were subsequently ...
rec_pub_19404731-a-biometric-latent-curve-analysis-memory-decline-older-men-nas-nrc.htm
Optimal designs for 2-color microarray experiments.
26 Apr 2009
Statisticians can play a crucial role in the design of gene expression studies to ensure the most effective allocation of available resources. This paper considers Pareto optimal designs for gene expression studies involving 2-color microarrays. ...
rec_pub_19401503-optimal-designs-2-color-microarray-experiments.htm
Multiple scales and geometric structures: additional sources of randomness.
22 Apr 2009
rec_pub_19390854-multiple-scales-geometric-structures-additional-sources-randomness.htm
22 Apr 2009
rec_pub_19390936-implementation-limitations-meta-analysis-randomized-trials-clinical.htm
Familial aggregation of atrial fibrillation: a study in Danish twins.
21 Apr 2009
BACKGROUND: Heritability may play a role in nonfamilial atrial fibrillation (AF). We hypothesized that a monozygotic (MZ) twin whose co-twin was diagnosed with AF would have an increased risk of the disease compared with a dizygotic (DZ) twin in the ...
rec_pub_19808493-familial-aggregation-atrial-fibrillation-study-danish-twins.htm
Testing the prediction error difference between 2 predictors.
18 Apr 2009
We develop an inference framework for the difference in errors between 2 prediction procedures. The 2 procedures may differ in any aspect and possibly utilize different sets of covariates. We apply training and testing on the same data set, which is ...
rec_pub_19380517-testing-prediction-error-difference-2-predictors.htm
15 Apr 2009
Fat bodies in the heads of toothed whales, which serve to transmit and receive sound, represent extraordinary examples of physiological specialization in adipose tissues among mammals, yet we know surprisingly little about their biochemical ...
rec_pub_19373476-distribution-development-highly-specialized-lipids-sound-reception.htm
15 Apr 2009
We present a penalized matrix decomposition (PMD), a new framework for computing a rank-K approximation for a matrix. We approximate the matrix X as circumflexX = sigma(k=1)(K) d(k)u(k)v(k)(T), where d(k), u(k), and v(k) minimize the squared ...
rec_pub_19377034-a-penalized-matrix-decomposition-applications-sparse-principal.htm
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