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This longitudinal study modeled children's complex executive function (EF) development using the Groton Maze Learning Task (GMLT). Using a cohort-sequential design, 147 children (61 males, 5.5-11 years) were recruited from six multicultural primary schools in Melbourne and Perth, Australia. Race/ethnicity data were not available. Children were assessed on the GMLT at 6-month intervals over 2-years between 2010 and 2012. Growth curve models describe age-related change from 5.5 to 12.5 years old. Results showed a quadratic growth trajectory on each measure of error--that is, those that reflect visuospatial memory, executive control (or the ability to apply rules for action), and complex EF. The ability to apply rules for action, while a rate-limiting factor in complex EF, develops rapidly over early-to-mid childhood.

Wind wave observations in shallow coastal waters are essential for calibrating, validating, and improving numerical wave models to predict sediment transport, shoreline change, and coastal hazards such as beach erosion and oceanic inundation. Although ocean buoys and satellites provide near-global coverage of deep-water wave conditions, shallow-water wave observations remain sparse and often inaccessible. Nearshore wave conditions may vary considerably alongshore due to coastline orientation and shape, bathymetry and islands. We present a growing dataset of in-situ wave buoy observations from shallow waters (<35 m) in southeast Australia that comprises over 7,000 days of measurements at 20 locations. The moored buoys measured wave conditions continuously for several months to multiple years, capturing ambient and storm conditions in diverse settings, including coastal hazard risk sites. The dataset includes tabulated time series of spectral and time-domain parameters describing wave height, period and direction at half-hourly temporal resolution. Buoy displacement and wave spectra data are also available for advanced applications. Summary plots and tables describing wave conditions measured at each location are provided. [ABSTRACT FROM AUTHOR]

When extension events are greatly separated in time, older faults may be buried and stratigraphically separated from newly developing faults at shallower depths. During rifting, the buried structures may reactivate and propagate upwards to be expressed within the shallow system. The degree of linkage between structural levels determines the influence that the deeper structures can exert over the geometry and evolution of the incipient fault system. In this study we use 3D seismic reflection data to examine how a deep fault population across the Laminaria High, NW shelf of Australia influences the development of a younger fault system at shallow depths. These fault populations are non‐parallel and decoupled across a mechanically weak interval. The majority of shallow faults are not linked to those at depth. However, the reactivation and upward propagation of some of the deeper faults produce anomalously oriented structures at shallow depths, hard‐linked to the deeper structures. One fault in particular shows along‐strike variability, with the deep segment reactivated and present at shallow depths in the west. To the east, the shallow and deep fault segments become decoupled across the mechanically weak interval, although some soft‐linkage and strain transfer still occurs. We suggest that this switch in the degree of coupling along the fault is due to the geometry of the deeper structure, with the transition corresponding to a prominent relay ramp. We show how the geometry of a deeper fault may affect its propensity to reactivate during subsequent extensional events, ultimately affecting the degree of structural inheritance that is expressed within younger, shallower fault populations. [ABSTRACT FROM AUTHOR]

A change in someone's financial situation, such as a windfall gain or increased financial stress, can affect the way that they gamble. The aim of this paper was to explore the relationship between financial well-being and changes in gambling behaviour during the coronavirus 2019 (COVID-19) shutdown. Australian past-year gamblers (N = 764; 85% male) completed an online cross-sectional survey in May 2020. Participants retrospectively reported monthly gambling participation before and after the COVID-19 shutdown, as well as their financial well-being, experience of COVID-related financial hardship, problem gambling severity, and psychological distress. Financial well-being showed strong negative associations with problem gambling and psychological distress. Neither financial well-being nor the interaction between financial well-being and problem gambling severity showed consistent evidence for predicting changes in gambling participation during the shutdown in this sample. This study provides preliminary evidence that self-reported financial well-being has a strong negative association with gambling problems but is not related to gambling participation. Future studies should link objective measures of financial well-being from bank transaction data with survey measures of problem gambling severity and experience of gambling-related harm. [ABSTRACT FROM AUTHOR]

Genomic sequence analysis of zoo ranavirus (ZRV) suggests it is a strain of Bohle iridovirus (BIV), a virus that was first detected in, and thought to be confined to, Australia. Furthermore, marked sequence similarity and genomic co-linearity among ZRV, BIV, and German gecko ranavirus (GGRV) are consistent with the view that all three are strains of Frog virus 3, the type species of the genus Ranavirus, family Iridoviridae. [ABSTRACT FROM AUTHOR]

Fractional cover of photosynthetic vegetation (FPV), non-photosynthetic vegetation (FNPV), and bare soil (FBS) has been retrieved for Australian tropical savannah based on linear unmixing of the two-dimensional response envelope of the normalized difference vegetation index (NDVI) and short wave infrared ratio (SWIR)32 vegetation indices (VI) derived from Moderate Resolution Imaging Spectroradiometer (MODIS) reflectance data. The approach assumes that cover fractions are made up of a simple mixture of green leaves, senescent leaves, and bare soil. In this study, we examine retrieval of fractional cover using this approach for a study area in southern Africa with a more complex vegetation structure. Region-specific end-members were defined using Hyperion images from different locations and times of the season. These end-members were applied to a 10-year time series of MODIS-derived NDVI and SWIR32 (from 2002 to 2011) to unmixFPV,FNPV, andFBS. Results of validation with classified high-resolution imagery indicated major bias in estimation ofFNPVandFBS, with regression coefficients for predicted versus observed data substantially less than 1.0 and relatively large intercept values. Examination with Hyperion images of the inverse relationship between the MODIS-equivalent SWIR32 index and the Hyperion-derived cellulose absorption index (CAI) to which it nominally approximates revealed: (1) non-compliant positive regression coefficients for certain vegetation types; and (2) shifts in slope and intercept of compliant regression curves related to day of year and geographical location. The results suggest that the NDVI–SWIR32 response cannot be used to approximate the NDVI–CAI response in complex savannah systems like southern Africa that cannot be described as simple mixtures of green leaves, dry herbaceous material high in cellulose, and bare soil. Methods that use a complete set of multispectral channels at higher spatial resolution may be needed for accurate retrieval of fractional cover in Africa. [ABSTRACT FROM AUTHOR]

The article explores the medical malpractice litigation involving an allegation of a failure to warn about the risk of injury to the recurrent laryngeal nerve in Australia. Through examination of the surgical evidence of Chappel v Hart case, the author says that it may be perceived as a miscarriage of justice, with consequences for the defendant physician. The decision has relied on the principle associated with raising the standards of warning about material medical risks to a new level.

This paper describes the introduction of a daily activity programme with clients whorequire psychiatric intensive care in two locked high-dependency units (HDUs). To evaluate theprogramme, a crossover study between the two units was undertaken with a convenience sample ofclients. Baseline data of pro re nata (p.r.n.) medication dispensed to patients were collected for aperiod of 2 weeks from both locked units before the introduction of the programme. The programmewas conducted for a period of 1 month in alternate locked units. Both non-intervention and activeprogramme data were collected throughout the 6-month period of the study. Findings from the studydemonstrated that an activity-based nursing intervention was effective in reducing the number ofp.r.n. medications dispensed in a HDU compared with control conditions. The effects were statisticallysignificant in one of the units and absent in the other. This study shows that a purposeful activityprogramme for severely disturbed psychiatric clients in a HDU setting can be effective in reducingdisturbed behaviour and therefore the need for p.r.n. medication. [ABSTRACT FROM AUTHOR]

Deals with a study which used a comparison of mitochondrial and morphological divergence in populations of leaf-litter skink to determine the importance of geographic isolation and natural selection in generating phenotypic diversity in the Wet Tropics Rainforest region in Australia. Analysis of the phenotypic and genetic variation in the Carlia rubrigularis lizard; Methodology of the study; Results and discussion; Conclusion.

Rationale: Easy access to consumer credit products, such as credit cards, overdrafts, and personal loans, may facilitate gambling beyond affordable levels, which can result in debt problems. Debt and mental health problems are both potential motivators and core consequences of problem gambling. Debt stress (i.e., worry regarding ability to repay debts) is one potential psychological mechanism underlying the relationship between debt and mental health problems. Few previous studies have investigated debt stress among gamblers. Objective: This cross-sectional study aimed to investigate the mediating effect of debt stress between gambling frequency and mental health and wellbeing. Methods & Results: A sample of 309 Australian past-month gamblers (83.8% male; mean age 41.5 years) completed an online survey. There was no evidence for the preregistered association between gambling frequency and debt stress, ruling out a predicted mediating effect for debt stress between gambling frequency and mental health and wellbeing. However, exploratory path analysis showed debt stress has statistically significant mediating effects between problem gambling and psychological distress, depression, wellbeing, and gambling-related family impacts, after controlling for sociodemographic factors and psychiatric history. Conclusions & Implications: Debt stress is a robust indicator of financial problems and may indicate underlying problem gambling and mental health issues, making debt stress a useful risk indicator. Clinical services should conduct screening for debt stress and address subjective worry about debts as a standard part of treatment plans as this may help to mitigate some of the impact of gambling and/or financial problems on poor mental health. Health practitioners should develop strong referral networks with gambling and financial counselling services. Government investment in making gambling and financial counselling services freely available and easily accessible is recommended to ensure appropriate support is received via effective care pathways. • Problem gambling is associated with worry regarding ability to repay debts. • Debt stress partly mediates the link between problem gambling and mental health. • Debt stress has potential utility for screening in primary healthcare settings. • Healthcare providers should establish referral networks with financial counsellors. • Gambling treatment should address debt stress to reduce psychological harms. [ABSTRACT FROM AUTHOR]

Foredunes are important features within coastal landscapes, yet there are relatively few medium to long-term studies on how they evolve and change over time. This study of Australia's New South Wales (NSW) foredunes has used 70 years of aerial photographs (or photogrammetry) and recent Light Detection and Ranging (LiDAR) datasets to assess multi-decadal fluctuations in foredune morphology. It was shown that over the past 70 years NSW foredunes have exhibited considerable spatial variation, ranging from accretion/aggradation to recession. Those sites that accreted predominantly extended seaward as new incipient dunes, gaining a maximum of 235 m3 m−1 in sand volume over the study period (for the entire dune system). These sites were commonly found in the north of the state, within closed sediment compartments, and with strong onshore (and alongshore) wind climates present (increasing the potential for aeolian sand transport). Stable foredunes were those that remained within +/− 50 m3 m−1 of their initial volume and managed to recover from the various storm impacts over the study period. The majority of these sites were found within the central to southern half of the state, behind embayed beaches, and within leaky sediment compartments, or those that have estuarine sinks. Finally, those foredunes in recession have retreated landwards and/or have reduced in height or width, and lost up to 437 m3 m−1 of sand volume over the study period. There was no clear spatial trend for these sites; however, generally they were found in compartments that had unusual orientations, had disruptions in longshore drift/cross shore sand delivery (i.e., rocky reefs), or were being impacted by humans (i.e., the installation of river training walls, sand bypassing systems, or coastal management programs). This study has shown that NSW foredunes have undergone substantial recent changes and, by understanding their past history, will provide better insight into how they can be managed into the future. [ABSTRACT FROM AUTHOR]

A report that heavily criticises Australia's mental health services has stirred up political tensions, and even fuelled calls for institutions to be re-opened. [ABSTRACT FROM AUTHOR]