scispace - formally typeset
Open Access

nlme : Linear and nonlinear mixed effects models

S. Debroy
Reads0
Chats0
About
The article was published on 2006-01-01 and is currently open access. It has received 9437 citations till now.

read more

Citations
More filters
Journal ArticleDOI

The effects of life history and sexual selection on male and female plumage colouration

TL;DR: A new method is used to quantify plumage colour of all ~6,000 species of passerine birds to determine the main evolutionary drivers of ornamental colouration in both sexes, and finds that conspecific male and female colour elaboration are strongly correlated.
Journal ArticleDOI

Estimating an EQ-5D-5L Value Set for China

TL;DR: The 8-parameter multiplicative model performed the best in the study and therefore was used to generate the EQ-5D-5L value set for China and is recommend using rescaled values whereby 1 represents the value of instrument-defined full health in economic evaluation of health technologies in China whenever the EQ/5D/5L data are available.
Journal ArticleDOI

Soil mulching significantly enhances yields and water and nitrogen use efficiencies of maize and wheat: a meta-analysis.

TL;DR: Soil mulching can significantly increase maize and wheat yields, WUE and NUE, and thereby may contribute to closing the yield gap between attainable and actual yields, especially in dryland and low nutrient input agriculture.

INCREASED TREE DENSITIES IN SOUTH AFRICAN SAVANNAS: > 50 YEARS OF DATA SUGGESTS CO2 AS A DRIVER Running title: CO2 and woody encroachment in savannas

TL;DR: Wood encroachment may significantly alter ecosystem functioning including fire regimes, herbivore carrying capacity, biodiversity, and carbon storage capacity as mentioned in this paper, and increased atmospheric CO2 concentrations may also contribute, by increasing growth rates of trees relative to grasses.