The bearing of phase equilibria studies in synthetic and natural systems on the origin and evolution of basic and ultrabasic rocks
MJ O'hara - Earth-Science Reviews, 1968 - Elsevier
Recent phase equilibria studies, and the concepts of basic magma evolution to which they
have given rise, are reviewed. The variations with pressure of liquid compositions in …
have given rise, are reviewed. The variations with pressure of liquid compositions in …
Characterising long COVID: a living systematic review
…, N Elkheir, V Cheng, A Dagens, C Hastie, M O'Hara… - BMJ global …, 2021 - gh.bmj.com
Background While it is now apparent clinical sequelae (long COVID) may persist after acute
COVID-19, their nature, frequency and aetiology are poorly characterised. This study aims to …
COVID-19, their nature, frequency and aetiology are poorly characterised. This study aims to …
Postpartum depression: current status and future directions
MW O'hara, JE McCabe - Annual review of clinical psychology, 2013 - annualreviews.org
Postpartum depression (PPD) is a common and serious mental health problem that is
associated with maternal suffering and numerous negative consequences for offspring. The first …
associated with maternal suffering and numerous negative consequences for offspring. The first …
Rates and risk of postpartum depression—a meta-analysis
MW O'hara, AM Swain - International review of psychiatry, 1996 - Taylor & Francis
The average prevalence rate of non-psychotic postpartum depression based on the results
of a large number of studies is 13%. Prevalence estimates are affected by the nature of the …
of a large number of studies is 13%. Prevalence estimates are affected by the nature of the …
Information and the cost of capital
We investigate the role of information in affecting a firm's cost of capital. We show that differences
in the composition of information between public and private information affect the cost …
in the composition of information between public and private information affect the cost …
Liquidity, information, and infrequently traded stocks
This article investigates whether differences in information‐based trading can explain observed
differences in spreads for active and infrequently traded stocks. Using a new empirical …
differences in spreads for active and infrequently traded stocks. Using a new empirical …
[BOOK][B] Market microstructure theory
M O'hara - 1998 - books.google.com
… The right of Maureen O'Hara to be identified as the Author of this Work has been asserted in
accordance with the UK Copyright, Designs, and Patents Act 1988. … Maureen O'Hara resides …
accordance with the UK Copyright, Designs, and Patents Act 1988. … Maureen O'Hara resides …
Price, trade size, and information in securities markets
This paper investigates the effect of trade size on security prices. We show that trade size
introduces an adverse selection problem into security trading because, given that they wish to …
introduces an adverse selection problem into security trading because, given that they wish to …
Is information risk a determinant of asset returns?
We investigate the role of information‐based trading in affecting asset returns. We show in a
rational expectation example how private information affects equilibrium asset returns. …
rational expectation example how private information affects equilibrium asset returns. …
Time and the process of security price adjustment
This paper delineates the link between the existence of information, the timing of trades,
and the stochastic process of prices. We show that time affects prices, with the time between …
and the stochastic process of prices. We show that time affects prices, with the time between …