Terrestrial biosphere changes over the last 120 kyr

A new global synthesis and biomization of long (> 40 kyr) pollen-data records is presented and used with sim- ulations from the HadCM3 and FAMOUS climate models and the BIOME4 vegetation model to analyse the dynamics of the global terrestrial biosphere and carbon storage over the last glacial–interglacial cycle. Simulated biome distribu- tions using BIOME4 driven by HadCM3 and FAMOUS at the global scale over time generally agree well with those in- ferred from pollen data. Global average areas of grassland and dry shrubland, desert, and tundra biomes show large- scale increases during the Last Glacial Maximum, between ca. 64 and 74 ka BP and cool substages of Marine Isotope Stage 5, at the expense of the tropical forest, warm-temperate forest, and temperate forest biomes. These changes are re- flected in BIOME4 simulations of global net primary pro- ductivity, showing good agreement between the two models. Such changes are likely to affect terrestrial carbon storage, which in turn influences the stable carbon isotopic composi- tion of seawater as terrestrial carbon is depleted in 13C.

Novel European free-living, non-diazotrophic Bradyrhizobium isolates from contrasting soils that lack nodulation and nitrogen fixation genes - a genome comparison

The slow-growing genus Bradyrhizobium is biologically important in soils, with different representatives found to perform a range of biochemical functions including photosynthesis, induction of root nodules and symbiotic nitrogen fixation and denitrification. Consequently, the role of the genus in soil ecology and biogeochemical transformations is of agricultural and environmental significance. Some isolates of Bradyrhizobium have been shown to be non-symbiotic and do not possess the ability to form nodules. Here we present the genome and gene annotations of two such free-living Bradyrhizobium isolates, named G22 and BF49, from soils with differing long-term management regimes (grassland and bare fallow respectively) in addition to carbon metabolism analysis. These Bradyrhizobium isolates are the first to be isolated and sequenced from European soil and are the first free-living Bradyrhizobium isolates, lacking both nodulation and nitrogen fixation genes, to have their genomes sequenced and assembled from cultured samples. The G22 and BF49 genomes are distinctly different with respect to size and number of genes; the grassland isolate also contains a plasmid. There are also a number of functional differences between these isolates and other published genomes, suggesting that this ubiquitous genus is extremely heterogeneous and has roles within the community not including symbiotic nitrogen fixation.

Wheat seed embryo excision enables the creation of axenic seedlings and Koch’s postulates testing of putative bacterial endophytes

Early establishment of endophytes can play a role in pathogen suppression and improve seedling development. One route for establishment of endophytes in seedlings is transmission of bacteria from the parent plant to the seedling via the seed. In wheat seeds, it is not clear whether this transmission route exists, and the identities and location of bacteria within wheat seeds are unknown. We identified bacteria in the wheat (Triticum aestivum) cv. Hereward seed environment using embryo excision to determine the location of the bacterial load. Axenic wheat seedlings obtained with this method were subsequently used to screen a putative endophyte bacterial isolate library for endophytic competency. This absence of bacteria recovered from seeds indicated low bacterial abundance and/or the presence of inhibitors. Diversity of readily culturable bacteria in seeds was low with 8 genera identified, dominated by Erwinia and Paenibacillus. We propose that anatomical restrictions in wheat limit embryo associated vertical transmission, and that bacterial load is carried in the seed coat, crease tissue and endosperm. This finding facilitates the creation of axenic wheat plants to test competency of putative endophytes and also provides a platform for endophyte competition, plant growth, and gene expression studies without an indigenous bacterial background.

"Roll Up and Spend Your Last Dime". The Merry-go-round of Children`s Extra-curricular Activities in Modern Society.

"Step up and play" begins the famous hit song 'Penny Arcade'. And so it
was for thousands of Australian families, as their eldest child began school
this year, and the associated endless merry-go-round of extra-curricular
activities also began. But how many of those families realise that the song ends "Roll up and spend your last dime!"? While the perceived benefits of
children's involvement in extracurricular activities are many and are widely accepted, there are also costs, not only in terms of money but also in terms
of time. Evidence from a study conducted in Melbourne highlights the fact that, for many families such as those on low incomes and those headed by a single parent, both the time and the money costs may be prohibitive. This article highlights parents' perceptions of the benefits·and costs of children's extra-curricular activities, and explores the implications of changing family and household structures for families' capacity to sustain such activities.

Legal ethics is (just) normal ethics: towards a coherent system of legal ethics

The standards governing how lawyers ought to conduct themselves consist of a number disparate principles and rules, which are devoid of an overarching rationale. We argue that legal ethics is not a stand-alone social construct. Rather, it is the application of normal ethical principles so far as they relate to the law. Approached in this manner, legal ethics becomes a far more coherent and justifiable institution. In this paper we apply general moral theory to several key dilemmas facing lawyers. This results in outcomes which some may find counter-intuitive. We conclude that lawyers should not do pro bono work; that the first cab rank off the rank principle is unsound and that there is no relevant difference between expressly misleading the court and putting the other side to the proof of its case.

Refugee law: time for a fundamental re-think: need as the criterion for assistance

Concern that the definition of refugee based on race, religion, nationality, membership of a particular social group or political opinion found in 1951 United Nations Convention relating to the Status of Refugees is unduly narrow and arbitrary and should be replaced by a definition reflecting the concept of deprivation and need.

An analysis of the antecedents of satisfaction for superannuation fund members

The factors influencing the satisfaction of superannuation fund members are poorly understood at present, due to a paucity of research. This study looks at the relative influence that five key aspects of the offering of a mid-size Australian Superannuation Fund have on overall satisfaction. Despite the long-term nature of the product and efforts to educate members to think otherwise, short-term financial performance remains a strong influence on member satisfaction. With financial returns varying annually and to a large degree being out of the control of fund managers, the focus on this aspect as the main influence on satisfaction levels is problematic. The evidence suggests that shifting the focus of members towards longer period assessments (eg returns over the past five years) and towards aspects of the funds' offering that are points of differentiation (eg enquiry handling) is the only way to prevent large fluctuations in satisfaction levels and possible defections.

Discrimination as the touchstone of persecution in refugee law

The touchstone of refugee law is the concept of persecution. The concept is poorly defined. The courts have suggested that it includes several elements, including discrimination, systematic conduct, motivation and causation. In the context of distinguishing between prosecution and persecution, other criteria that have been employed include the notion of a law of general application’ and the legitimate and appropriate and adapted test. These concepts are often overlapping and some are superfluous. This paper proposes a new test for persecution. The best way forward to unify and inject coherency, consistency and certainty into this area of the law is to make discrimination the sole criterion of persecution. The (exhaustive) test for persecution that is proposed is as follows:  1. Does the law on its face impose an additional burden for a Convention reason? 2. If the answer is no, it is necessary to examine if the practical effect of the law is to impose an additional burden on people for a Convention reason either because the law selectively targets people for a Convention ground or disproportionately applies against people for a Convention ground? 3. If the answer to both questions is ‘no’, the law does not constitute persecution. 4. If the answer to question 1 or 2 is ‘yes’, then the law will constitute persecution unless there is a relevant basis for causing serious harm to people for a Convention reason.

International human rights law: all show, no go

This article examines the following issues: (i) If international human rights  instruments are so worthwhile, why are much of the world’s people still living in conditions of destitution? and (ii) what can be done to make international law the best it can be at improving the living standards of the human species?

Faking it for real

Jean Baudrillard suggests that the supremacy of the simulacra is a modern development, reality a construction of the U.S. His argument, given the U.S. penchant for breaking and remaking the world in its own image (it is, in the language of Baudrillard, both iconoclast and iconolater), is strong. However, writers, artists, and philosophers have been pondering the reign of illusion for millennia. Plato described the world as a place of simulations that left us wanting. For Shakespeare, the world was a stage of fools; the play was that of an idiot. Goya presented the world as a dream of reason that gave birth to the monsters he painted. Borges (like Shakespeare and also perhaps Goya and Plato) was obsessed with what he refers to in "Tlön, Uqbar, Orbis Tertius" as the "atrocious or banal" idea that reality, as we know it (which is, of course, the only perspective of it that we can have), is fake. The three books under review here, Ian Miller's Faking It, Penny Cousineau-Levine's Faking Death: Canadian Art Photography and the Canadian Imagination, and Paul Matthew St Pierre's A Portrait of the Artist as Australian: L'Oeuvre bizarre de Barry Humphries, can be considered additions to the oeuvre fascinated and troubled by what Borges calls the "phantasmagorias" of our world

Online versus postal data collection : a re-examination of the response differences using demographically matched data

Past research has identified differences between online and mail collected responses to the same survey, but differences in the demographics of respondents had also been noted making the cause of the variation unclear. In the research reported here, responses to the same questionnaire, delivered via mail and internet surveys, were demographically matched across a range of variables. This removed the impact of response differences caused by age, gender, type of product consumed and length of customer relationship. Across all the different question types and response scales, significant differences were still found between mail and online respondents, even when data were ipsatised. Notably, online respondents were far less likely to use the end-points of the scale, perhaps indicating issues with the online collection methodology. The conclusion is that the two methods of data collection can not be assumed to be directly inter-changeable, and that the method used can lead to different results if not managed carefully.