Star clusters near and far; tracing star formation across cosmic time

© 2020 Springer-Verlag. The final publication is available at Springer via https://doi.org/10.1007/s11214-020-00690-x.Star clusters are fundamental units of stellar feedback and unique tracers of their host galactic properties. In this review, we will first focus on their constituents, i.e.\ detailed insight into their stellar populations and their surrounding ionised, warm, neutral, and molecular gas. We, then, move beyond the Local Group to review star cluster populations at various evolutionary stages, and in diverse galactic environmental conditions accessible in the local Universe. At high redshift, where conditions for cluster formation and evolution are more extreme, we are only able to observe the integrated light of a handful of objects that we believe will become globular clusters. We therefore discuss how numerical and analytical methods, informed by the observed properties of cluster populations in the local Universe, are used to develop sophisticated simulations potentially capable of disentangling the genetic map of galaxy formation and assembly that is carried by globular cluster populations.Peer reviewedFinal Accepted Versio

TRY plant trait database – enhanced coverage and open access

Plant traits—the morphological, anatomical, physiological, biochemical and phenological characteristics of plants—determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait‐based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits—almost complete coverage for ‘plant growth form’. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait–environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives

Residential circumstances of older Australians with mental retardation

Residential circumstances of Australians 55 years or older with mental retardation were investigated. Data were collected via interviews from 446 individuals living in Queensland and Western Australia who were identified following an extensive national search. Although survey results indicated that older people lived in a wide variety of residential settings, the majority still resided in large private or public institutions. There is evidence that deinstitutionalization had occurred, although it affected only 35% of the cohort. One important finding in the study concerns the relatively minor role participants play in determining their future care and residential needs. Interviews established that less than 10% of those in each sample would be involved in future decision-making processes

The teachers role in implementing cooperative learning in the classroom

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Self-concept test generalisability: Self-Description Questionnaire- I and the Perception of Ability Scale for students

The validity of standardised ossessment instruments and their normative data is a significant issue in school psychology. Consequently, this study of 515 coeducational Queensland Year 5 students investigated the generalisability and robustness of the norms of two contemporary self-concept instruments, the Self-Description Questionnaire-I (SDQ-I; Marsh, 1988) and the Perception of Ability Scale for Students (PASS; Boersma & Chapman, 1992). Both tests have received praise for their theoretical construct but have been criticised for the regionalisation of their norming populations.The results of this study demonstrated that the Queensland students had higher mean PASS self-concept scores than the North American students used in the norming of all the PASS scales. For the SDQ- I, a similar distribution pattern was shown for Queensland students and SDQ-I norming sample, with the exception of small variability with Reading and Mothematics self-concepts scales. Issues associated with interpreting and reporting of assessment results and with the assessment responsibilities of educational psychologists and counsellors are discussed