Recently, a nitrogen iceberg was proposed as possible origin for the first interstellar object, 1I/2017 U1, also known ‘Oumuamua. Here, we show that mass budget in exo-Pluto planets necessary to explain detection of ‘Oumuamua chipped off from planetary surface requires heavy elements exceeding total quantity locked stars with 95% confidence, making scenario untenable because only small fraction...

We study the evolution of the stellar mass density for the separate families of bulge–dominated and disk– dominated galaxies over the redshift range 0.25 ≤ z ≤ 1.15. We derive quantitative morphology for a statistically significant galaxy sample of 1645 objects selected from the FORS Deep and the GOODS–S Fields. We find that the morphological mix evolves monotonically with time: the higher the ...

In this paper, the sustainability of public debt is interpreted as the result of the interaction of fiscal policy with the economic environment, and not as a statistical concept as in most of the recent literature. If debt must not explode over time, policy makers have to respond to the changing conditions in the macroeconomic environment. This paper defines the conditions which will ensure com...

This bulletin is based on research conducted by Professor Gavin Wood and Dr Melek Cigdem at the AHURI Research Centre—RMIT University, and Ms Deb Batterham and Professor Shelley Mallett at Hanover Welfare Services. The research examined, for the first time, the geography of homelessness in Australia and its relationship to potential structural drivers of homelessness (specifically housing and l...

A mass budget of polybrominated diphenyl ethers (PBDEs) in San Francisco Bay is developed as a first step towards understanding the local sources and transport processes controlling PBDE fate in a highly urbanized estuary. Extensive monitoring of PBDEs in estuarine water and sediment, freshwater tributaries, air, and wastewater effluents and sludges were integrated with a mass budget model to p...

Jinzhu Duan, Costin Gherghe, Dianxin Liu, Eric Hamlett, Luxman Srikantha, Laurel Rodgers, Jenna N Regan, Mauricio Rojas, Monte Willis, Andrew Leask, Mark Majesky and Arjun Deb* Department of Medicine, McAllister Heart Institute and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA, Department of Cell and Molecular Physiology, McAllister Heart Institute a...

The standard intertemporal model of open economy with a dynamic budget constraint predicts that investment and saving should be cointegrated as long as the economy does not violate its budget constraint. Recent empirical studies of the long run investment-saving comovement for the 1947:1–1987:3 period US data, however, report conflicting findings: some studies find that the time series of inves...