Robust variable selection procedures through penalized regression have been gaining increased attention in the literature. They can be used to perform variable selection and are expected to yield robust estimates. However, to the best of our knowledge, the robustness of those penalized...

In this article, we derive the distribution of partially exchangeable binary random variables, generalizing the distribution of exchangeable binary random variables and hence the binomial distribution. The distribution can be viewed as a mixture of Markov chains. We introduce rectangular...

In this article, we propose to estimate the regression parameters in a semiparametric generalized linear model by moment estimating equations. These estimators are shown to be consistent and asymptotically normal. We present two estimators of the nonparametric part, provide conditions for the...

Human mortality patterns are modeled as the loss of an individual’s vitality, a measure of survival capacity, by senescence or when random extrinsic challenges exceed the remaining vitality. The model characterizes the stochastic rate of loss of vitality as a Wiener process and random...

Social network types have been proved to have significant impacts on older population's health outcomes. However, the existing discoveries are still inconsistent, which may be attributed largely to the heterogeneous measures and methods scholars used and to the unidirectional causalities...

Methanol decomposition over alkali-leached Ni3Sn powder at 513–793 K was investigated. Compared with untreated Ni3Sn, alkali-leached Ni3Sn had high catalytic activity and selectivity toward H2 and CO production above 633 K. A maximum H2 production rate of...

This article offers an overview of the development of dairy cow breeding in China, and analyzes the problems in the development of dairy cow breeding in China as follows: the breeding scale is small; the pasture grass production cannot meet demand; the proportion of fine breed is not high and the...