An evaluation of the accounting rate of return : evidence for Dutch quoted firms

Although the accounting rate of return (ARR) is traditionally regarded as an important profitability measure in ratio analysis, there has been relatively little theoretical and empirical analysis on its statistical properties and its intrinsic ability to explain market returns. This paper provides an empirical examination of the distributional properties and a time-series analysis of the ARR’s of listed Dutch companies for the years from 1978 to 1997. Furthermore we examine how the ARR is related to market return and risk. We investigate the distributional properties of the accounting rate of return. Our study confirms prior international research which concludes that ARR follows a non-normal distribution. Previous US and UK studies suggest that time series earnings or ARR can be characterized by a random walk or a mean-reverting process. The time series results of our sample are characterized by mean reversion. This paper extends the empirical research on ARR by deriving a panel data analysis that yields more reliable estimates. Researchers using US data found that the ARR was deficient as a representation of market returns and was not related to systematic risk. We find the opposite.

Mengo encephalomyelitis virus

Twenty years ago the various human encephalitides then known, (excluding poliomyelitis and rabies), were listed by Rivers (1) as (a) Von Econ_omo's lethargic, (b) following vaccination, (c) Japanese 1924, (d) Koritschoner and (e) Australian X disease. At that time from none of these dis- eases had a virus been recovered. In 1930 the viruses of louping ill (2) and Western equine encephalitis (3) were isolated. During the past two decades an additional 17 primary or suspected encephalitic viruses of man have been recovered.Of these recently isolated agents the following have been recovered at the Yellow Fever Research Institute, Entebbe, Uganda: -West Nile (4), Bwamba Fever (5), Bunyamwera (6), Semliki Forest (7), Mengo encephalomyelitis (8), and Uganda S (9) viruses.It is the purpose of this thesis to describe the isolation of Mengo encephalomyelitis virus and to discuss the properties of this agent and its relationship to the virus of encephalomyocarditis (10) and to the Columbia SK (11) and MM viruses (12)

Some photometer results obtained on the NASA 1969 Airborne Auroral Expedition

The spectral features measured by a photometer onboard the Convair 990 Galileo, during the Auroral Expedition are given in tables. The measurements given cover flights 3 to 15

A systematic review of associations between environmental exposures and development of asthma in children aged up to 9 years

Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.Peer reviewedPublisher PD

A report on some results from the NASA 1968 Airborne Auroral Expedition

Photometer observations of auroras from CV-990 aircraf

Burton V. Barnes as a forest botanist

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/120432/1/Dick2016_Barnes_Tribute.pdfDescription of Dick2016_Barnes_Tribute.pdf : Main articl

Application of quasi-Monte Carlo methods to PDEs with random coefficients -- an overview and tutorial

This article provides a high-level overview of some recent works on the application of quasi-Monte Carlo (QMC) methods to PDEs with random coefficients. It is based on an in-depth survey of a similar title by the same authors, with an accompanying software package which is also briefly discussed here. Embedded in this article is a step-by-step tutorial of the required analysis for the setting known as the uniform case with first order QMC rules. The aim of this article is to provide an easy entry point for QMC experts wanting to start research in this direction and for PDE analysts and practitioners wanting to tap into contemporary QMC theory and methods.Comment: arXiv admin note: text overlap with arXiv:1606.0661

A 19-channel d.c. SQUID magnetometer system for brain research

A 19-channel d.c. SQUID magnetometer system for neuromagnetic investigations is under constuction. The first-order gradiometers for sensing the signal are placed in a hexagonal configuration. D.c. SQUIDs based on niobium/aluminium technology have been developed, leading to a field sensitivity of about 5 fT/ Hz. SQUID read-out is realized with a resonant transformer circuit at 100 kHz. The multichannel control and detection electronics are compactly built

Hyper-Ramsey Spectroscopy of Optical Clock Transitions

We present non-standard optical Ramsey schemes that use pulses individually tailored in duration, phase, and frequency to cancel spurious frequency shifts related to the excitation itself. In particular, the field shifts and their uncertainties of Ramsey fringes can be radically suppressed (by 2-4 orders of magnitude) in comparison with the usual Ramsey method (using two equal pulses) as well as with single-pulse Rabi spectroscopy. Atom interferometers and optical clocks based on two-photon transitions, heavily forbidden transitions, or magnetically induced spectroscopy could significantly benefit from this method. In the latter case these frequency shifts can be suppressed considerably below a fractional level of 10^{-17}. Moreover, our approach opens the door for the high-precision optical clocks based on direct frequency comb spectroscopy.Comment: 5 pages, 4 figure