The distribution of Wolbachia in Žg wasps: correlations with host phylogeny, ecology and population structure D. DeWayne Shoemaker, Carlos A. Machado, Drude Molbo, John H. Werren, Donald M. Windsor and Edward Allen Herre Department of Biological Sciences, 3149 Wood Hall, 1903 West Michigan Avenue, Western Michigan University, Kalamazoo, MI 49008-5410, USA Department of Genetics, Rutgers Univers...

Griflin, Miicl I Grossman, I'liyllls Iliiimncrsloy, Doris Ililili'iilirand. Elsie Hobble, Helen Holier. Norberl Humphreyi .leuiine .lillsnn, Irene Kaluldjlmi, M. Kane, Mary Kapp, Diiiuli Keicliiiin, George Kline, Grace Kolllcr, Henjaiiiin I' (If HWli l.aulie. Nina Lnurensso, Irene Levllie, Dora Lewis. Allen Lewis, Janet l.i.Di. Helen McCiinvillc, Cliorh MucDiiniiltl. ('. MncDoniilil, M. MeMille...

As the use of electronic textbooks continues to expand and we approach the point where dominance of digital over print is becoming increasingly inevitable (Reynolds, 2011), research is needed to understand how students accept and use the technology. This is especially critical as we begin to explore the electronic format for required textbooks in higher education. The current study evaluates un...

Multiple imputation is commonly used to impute missing data, and is typically more efficient than complete cases analysis in regression analysis when covariates have missing values. Imputation may be performed using a regression model for the incomplete covariates on other covariates and, importantly, on the outcome. With a survival outcome, it is a common practice to use the event indicator D ...

Using video microscopy, we investigated melting of a two-dimensional colloidal system, formed by glycerol droplets at the free surface of a nematic liquid crystalline layer. Analyzing different structure correlation functions, we conclude that melting occurs through an intermediate hexatic phase, as predicted by the KosterlitzThouless-Halperin-Nelson-Young(KTHNY) theory. However, the temperatur...

In this paper we use adaptive lasso estimator select between relevant and irrelevant instruments in heteroskedastic and non Gaussian data. To do so limit theory of Zou (2006) is extended from univariate iid case. Next, it is shown that adaptive lasso estimator can achieve near minimax risk bound even in the case of heteroskedastic data. To achieve that a new proof is used that benefits from Ste...

We consider the problem of estimating the first moment of a data stream defined as F1 = ∑ i∈{1,2,...,n}∣fi∣ to within 1± -relative error with high probability. Several algorithms are wellknown for this problem including the median estimator over p-stable sketches by Indyk [11], the geometric means estimator over p-stable sketches by Li [13] and the Hss sketch based algorithm in [8]. The current...

This thesis centers on nonparametric inferences of the cumulative hazard function of a right truncated variable. We present three variance estimators for the Nelson-Aalen estimator of the cumulative hazard function and conduct a simulation study to investigate their performances. A close match between the sampling standard deviation and the estimated standard error is observed when an estimated...

We consider a metric entropy capable of detecting deviations from symmetry that is suitable for both discrete and continuous processes. A test statistic is constructed from an integrated normed difference between nonparametric estimates of two density functions. The null distribution (symmetry) is obtained by resampling from an artificially lengthened series constructed from a rotation of the o...