Applied Longitudinal Data Analysis
Abstract Change is constant in everyday life. Infants crawl and then walk, children learn to read and write, teenagers mature in myriad ways, and the elderly become frail and fo...
Publications
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1,064 publications
Posttraumatic Stress Disorder in the National Comorbidity Survey
Posttraumatic stress disorder is more prevalent than previously believed, and is often persistent. Progress in estimating age-at-onset distributions, cohort effects, and the con...
Design and validation of a histological scoring system for nonalcoholic fatty liver disease†
Nonalcoholic fatty liver disease (NAFLD) is characterized by hepatic steatosis in the absence of a history of significant alcohol use or other known liver disease. Nonalcoholic ...
Digital Natives, Digital Immigrants Part 1
The main purpose of this project is to develop mathematical competences through interactive educational environments of multi-device access in the ninth grade students of the In...
The Cambridge Structural Database: a quarter of a million crystal structures and rising
The Cambridge Structural Database (CSD) now contains data for more than a quarter of a million small-molecule crystal structures. The information content of the CSD, together wi...
Data Structures for Statistical Computing in Python
In this paper we are concerned with the practical issues of working with data sets common to finance, statistics, and other related fields. pandas is a new library which aims to...
Trends, Rhythms, and Aberrations in Global Climate 65 Ma to Present
Since 65 million years ago (Ma), Earth's climate has undergone a significant and complex evolution, the finer details of which are now coming to light through investigations of ...
Conditional Heteroskedasticity in Asset Returns: A New Approach
This paper introduces an ARCH model (exponential ARCH) that (1) allows correlation between returns and volatility innovations (an important feature of stock market volatility ch...
Inferring tumour purity and stromal and immune cell admixture from expression data
Infiltrating stromal and immune cells form the major fraction of normal cells in tumour tissue and not only perturb the tumour signal in molecular studies but also have an impor...