Results 41 to 50 of about 4,065,331 (316)

Admissibility of the usual confidence interval in linear regression

open access: yes, 2010
Consider a linear regression model with independent and identically normally distributed random errors. Suppose that the parameter of interest is a specified linear combination of the regression parameters. We prove that the usual confidence interval for
Giri, Khageswor   +2 more
core   +1 more source

Fractal dimension confidence interval estimation of epicentral distributions

open access: yesAnnals of Geophysics, 1999
Estimates of the fractal dimension of hypocentral distributions require evaluating the range of independent variables in which fractal parameters exhibit a power law.
M. Vitale   +3 more
doaj   +1 more source

Contraceptive confidence and timing of first birth in Moldova: an event history analysis of retrospective data [PDF]

open access: yes, 2014
Objectives: To test the contraceptive confidence hypothesis in a modern context. The hypothesis is that women using effective or modern contraceptive methods have increased contraceptive confidence and hence a shorter interval between marriage and first ...
Durrant, Gabriele B.   +2 more
core   +2 more sources

A calculator for confidence intervals [PDF]

open access: yesComputer Physics Communications, 2002
A calculator program has been written to give confidence intervals on branching ratios for rare decay modes (or similar quantities) calculated from the number of events observed, the acceptance factor, the background estimate and the associated errors.
openaire   +4 more sources

Markov Chain Monte Carlo confidence intervals

open access: yes, 2016
For a reversible and ergodic Markov chain $\{X_n,n\geq0\}$ with invariant distribution $\pi$, we show that a valid confidence interval for $\pi(h)$ can be constructed whenever the asymptotic variance $\sigma^2_P(h)$ is finite and positive.
Atchadé, Yves F.
core   +1 more source

Alendronate or alfacalcidol in glucocorticoid-induced osteoporosis [PDF]

open access: yes, 2006
BACKGROUND: Treatment with glucocorticoids is associated with bone loss starting soon after therapy is initiated and an increased risk of fracture. METHODS: We performed a randomized, double-placebo, double-blind clinical trial of 18 months' duration ...
Ale Algra   +14 more
core   +4 more sources

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Monotherapy with major antihypertensive drug classes and risk of hospital admissions for mood disorders [PDF]

open access: yes, 2016
Major depressive and bipolar disorders predispose to atherosclerosis, and there is accruing data from animal model, epidemiological, and genomic studies that commonly used antihypertensive drugs may have a role in the pathogenesis or course of mood ...
Boal, Angela H.   +6 more
core   +1 more source

Network topology drives population temporal variability in experimental habitat networks

open access: yesPopulation Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu   +3 more
wiley   +1 more source

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