We present a measurement of the Hubble constant $H_0$ from surface brightness fluctuation (SBF) distances for 63 bright, mainly early-type galaxies out to 100 Mpc observed with Wide Field Camera 3 Infrared Channel (WFC3/IR) on Space Telescope (HST). The sample is drawn several independent HST imaging programs using F110W bandpass WFC3/IR. majority are in 50 80 range and come MASSIVE galaxy surv...

the equilibrium constant of adduct formation between some triorganotin chloride of the type r3sncl (r=c6h5, p-ch3c6h4, n-ch3)ch2)3, c6h5-ch2 and lewis bases cl¯, br¯, and i¯, were measured in 50% v/v ethanol-water solvent spectrophotometrically. the average equilibrium constant values for the systems studied shows the following acceptor trend of tin(iv) in the triorganotin chlorides: p-tolyl > ...

In a linear regression model with homoscedastic Normal noise, I consider James–Stein type shrinkage in the estimation of nuisance parameters associated with control variables. For at least three control variables and exogenous treatment, I show that the standard leastsquares estimator is dominated with respect to squared-error loss in the treatment effect even among unbiased estimators and even...

A ccording to a widely shared view of science, scientific theories predict and explain facts about "observables": objects and properties which can be perceived by the senses, sometimes augmented by instruments. In the tradition associated with logical positivism, this view receives an influential formulation in terms of a supposed distinction between two kinds of vocabularies and an allied clai...

The authors consider the problem of estimating, under quadratic loss, the mean of a spherically symmetric distribution when its norm is supposed to be known and when a residual vector is available. They give a necessary and sufficient condition for the optimal James-Stein estimator to dominate the usual estimator. Various examples are given that are not necessarily variance mixtures of normal d...

The literary style of henry James has attracted the attention of a number of leading analytic philosophers who are drawn to make claims for the philosophical signiicance of works of literature. Many of these philosophical commentators share a common approach: namely, they locate the philosophical center of gravity of James’s style in a philosophical view that his way of writing is understood to...

In a two-stage linear regression model with Normal noise, I consider James–Stein type shrinkage in the estimation of the first-stage instrumental variable coefficients. For at least four instrumental variables and a single endogenous regressor, I show that the standard two-stage least-squares estimator is dominated with respect to bias. I construct the dominating estimator by a variant of James...