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Purpose: The study aimed to (1) accurately examine longitudinal relationships between maturity status and both technical skill indices and performance in Australian male (N = 64) age-group Front-crawl swimmers (10–15 y) and (2) determine whether individual differences in maturation influenced relationships between technical skill level and swimming performance. Methods: A repeated-measures design was used to assess maturity status and performance on 200-m Front-crawl trial across 2 competition seasons (2018–2020). Assessments were made on 3 to 5 occasions (median = 3) separated by approximately 4 months. Average horizontal velocity and stroke frequency were used to calculate technical skill indices, specifically stroke index, and arm propelling efficiency. Relationships between variables were assessed using linear mixed models, identifying fixed, and random effect estimates. Results: Curvilinear trends best described significant longitudinal relationships between maturity status with horizontal velocity (F = 10.33 [1, 233.77]; P =.002) and stroke index (F = 5.55 [1, 217.9]; P =.02) during 200-m Front-crawl trials. Maturity status was not significantly related to arm propelling efficiency (P =.08). However, arm propelling efficiency was an independent predictor of Front-crawl velocity (F = 55.89 [1, 210.45]; P <.001). Conclusions: Maturity status predicted assessment of swimmer technical skill (stroke index) and swimming performance. However, technical skill accessed via arm propelling efficiency was independent of maturation and was predictive of performance. Maturity status influences performance evaluation based on technical skill and velocity. Findings highlight the need to account for maturation and technical skill in age-group swimmers to better inform swimmer evaluation. [ABSTRACT FROM AUTHOR]

This paper investigates the relationship between non-parental care and toddlers' behavioral outcomes using data from Australia. In particular, we explore heterogeneity in the relationship using the unique data on quality attributes: carer/child ratio, share of qualified staff, and expert ratings. The results suggest that full-time non-parental care, particularly center care, is negatively associated with toddlers' behavioral outcomes. The negative association is however mitigated when centers have a larger number of carers per child. The negative association between non-parental care and behavioral outcomes also appears to be larger for children with better-educated parents. (Contains 12 tables.)

Oenanthe javanica is a vegetable grown in East Asia and Australia in which the roots and aerial parts are boiled together to make certain traditional dishes. Nineteen compounds (1-19) were isolated from O. javanica roots and the chemical structures of 2 new norlignans were determined. The inhibitory effects of the compounds on hyaluronidase and degranulation in RBL-2H3 cells were evaluated to determine antiallergic and antiinflammation activities. Saponins (2-4) and the new norlignan seric acid G (12) were among the active compounds identified. Seric acid G (12), a methoxy derivative of seric acid F (11), was obtained as an interconverting mixture of 3:1 trans - cis isomers. Seric acids F and G (11, 12) were derived from seric acids C (10) and E, respectively, by decarboxylation and dehydration reactions that occurred during heating. It was confirmed by HPLC analysis that all eleven of the O. javanica cultivars contained seric acid C (10). [ABSTRACT FROM AUTHOR]

Nanobiotechnology is an immensely potential invention, which is expected to bring about revolutionary changes in many aspects of essential human needs including medical treatments and foods. Although the technology has passed through its embryonic stage, its medical applications in preparing and delivering drugs to target cells of human bodies to cure incurable diseases are still under scientific scrutiny. A 2007 study suggests that Australia needs to have a review of its regulatory framework for nanotechnology by 2017. This article examines the current regulation of nanotechnology and its medical applications in Australia, and observes that it would be premature to impose any stringent regulation at this stage on medical experimentations. We are of the view that an excessively precautionary policy may hinder further research, which is critical to discovering the benefit and harm with certainty. Hence, in the greater interest of the facilitation of research and affirmation of benefits of this technology, we recommend that adopting a hybrid regulatory method composed of self-regulation and accommodating government regulation would be an appropriate policy approach to the regulation of nanobiotechnology. We also accept the need for a set of internationally harmonized policy principles to guide our actions in relation to this technology. [ABSTRACT FROM AUTHOR]

This paper investigates the relationship between children's long-term health problems and parental labour supply using the 2004, 2006 and 2008 Longitudinal Study of Australian Children (LSAC). The results from the individual Fixed Effects Model indicate that mothers of children aged 0 years in 2004 reduce their labour supply when their children start to show long-term health problems, and their household income declines by 8 per cent, mainly due to the partners' shift from permanent to fixed-term work. Parents of children aged 4 years in 2004 show no change in these outcomes associated with the onset of their children's long-term health problems. [ABSTRACT FROM AUTHOR]

We examine whether responses to survey questions about child care availability, quality and cost, aggregated at the local geographical level, have any explanatory power in models of partnered female and lone parent labour supply. We find evidence that partnered women and lone parents who live in areas with more reports of lack of availability, low quality or costly child care work fewer hours and are less likely to work than women in areas with fewer reported difficulties with child care. [ABSTRACT FROM AUTHOR]

The supply of formal childcare has expanded in many developed countries. However, there is ambiguity in the theory whether the entry of care providers increases consumers’ surplus in a market with differentiated services, such as childcare. This study empirically investigates how perceived search costs and parental life satisfaction change when actual childcare availability is altered. It exploits the new panel data from Australia on the number of center-based childcare places per 100 children within a household’s residential area. The results show that an increase in the availability of center-based childcare is associated with a decrease in perceived difficulty in finding ‘good quality’ childcare, as well as an increase in mothers’ satisfaction with the amount of free time available. These findings imply that the local availability of center-based childcare has enhanced the subjective well-being of parents. [ABSTRACT FROM AUTHOR]

This article examines pathways through which parental characteristics might affect children’s cognitive and behavioural outcomes. Using the 2004 Longitudinal Study of Australian Children, I show that more educated and mentally healthier parents are likely to have children with better outcomes. Educated parents are more frequently engaged in education-oriented activities with their children, whereas mentally healthier parents exhibit more favourable parenting practices. To the extent that these results reflect causal relationships, they suggest that parental education and mental health affect children’s outcomes through different pathways. [ABSTRACT FROM AUTHOR]

Focuses on the suicidal rates in many countries. Dominance of suicidal rate of young people in Australia; Perception of suicide as an individual's right in Denmark; Motivation of committing suicide due to illness and disillusionment in Brazil.

The patterns of association between age and suicide rate vary by country, subpopulation and gender, and over time. To shed light on factors associated with these differences, we analysed suicide data from four populations, two 'Western' (Australia, the United States [US]) and two Asian (Japan and Hong Kong). We computed suicide rates in five-year age-groups (between 10 and 14 years and 85+ years) for men and women separately, and present graphical representations of the age patterns during selected five-year periods. Rates and age patterns differed markedly, as did gender patterns except in Hong Kong. In 1964-8, male suicide rates in Australia and US were represented by upward-sloping graphs, whereas in Japan the pattern was bimodal. By 1979-83, male patterns in Australia and US were bimodal, but Japan's was trimodal, including a middle-age peak reached in 1994-98. In contrast, female age patterns in the Western countries were shallowly convex or uniform, while in Hong Kong and Japan the upward-sloping graphs became, over time, less steep; by 2009-13, the pattern in Japan was uniform (flat). In recent decades, suicide rates of older men in Australia, US and Japan, and older women in Japan and Hong Kong, have fallen considerably. Suicide rates of men aged 45-64 in Australia and US also fell, though by 2009-13 the US rate had risen again. The suicide rate of Australian men in their twenties halved between 1994-98 and 2009-13, while rates for younger men and women in Japan have risen since 1994-98. In Hong Kong, suicide rates of young men have increased. Age patterns of suicide likely reflect period and cohort effects shaped by socioeconomic stressors, availability of health and welfare services, access to lethal methods of suicide, and other factors. Greater understanding of their impact on age patterns of suicide can result in potential preventive solutions. [ABSTRACT FROM AUTHOR]