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AbstractWith increased blurring of boundaries between work and family lives, work–family segmentation has been suggested as an effective work–life strategy for social workers who are involved in complex human service work, to reduce work–family conflict and enhance work–family enrichment. Yet, numerous studies have examined social workers' work–family conflict experiences, and only a few have focussed on social workers' work–family enrichment experiences. Correspondingly, drawing on boundary theory, conservation of resources theory and work–family enrichment theory, we investigated how family-to-work enrichment and work-to-family enrichment help social workers to benefit from work–family segmentation to increase their job performance. Using an online survey of Australian social workers (n = 504), we tested the impact of work–family segmentation on the job performance of social workers through family-to-work-enrichment and work-to-family enrichment. The study found evidence for the positive impact of work–family segmentation in helping social workers to experience family-to-work enrichment and work-to-family enrichment, thereby enhancing their job performance. The theoretical and practical implications of the findings for social workers, supervisors and the social service agencies are discussed.

Methane is an important greenhouse gas contributing to global climate change. Natural environments and restored wetlands contribute a large proportion to the global methane budget. Methanogenic archaea (methanogens) and methane oxidizing bacteria (methanotrophs), the biogenic producers and consumers of methane, play key roles in the methane cycle in those environments. A large number of studies revealed the distribution, diversity and composition of these microorganisms in individual habitats. However, uncertainties exist in predicting the response and feedback of methane-cycling microorganisms to future climate changes and related environmental changes due to the limited spatial scales considered so far, and due to a poor recognition of the biogeography of these important microorganisms combining global and local scales. With the aim of improving our understanding about whether and how methane-cycling microbial communities will be affected by a series of dynamic environmental factors in response to climate change, this PhD thesis ...

Methane is an important greenhouse gas contributing to global climate change. Natural environments and restored wetlands contribute a large proportion to the global methane budget. Methanogenic archaea (methanogens) and methane oxidizing bacteria (methanotrophs), the biogenic producers and consumers of methane, play key roles in the methane cycle in those environments. A large number of studies revealed the distribution, diversity and composition of these microorganisms in individual habitats. However, uncertainties exist in predicting the response and feedback of methane-cycling microorganisms to future climate changes and related environmental changes due to the limited spatial scales considered so far, and due to a poor recognition of the biogeography of these important microorganisms combining global and local scales. With the aim of improving our understanding about whether and how methane-cycling microbial communities will be affected by a series of dynamic environmental factors in response to climate change, this PhD thesis ...

The original publication is available at http://www.springerlink.com/content/lg4126j81q8x15m2/fulltext.pdf ; In order to analyse the genetic control of anther culture response in barley, a doubled haploid (DH) population from the cross between a medium responsive cultivar 'Dobla' and the model cultivar 'Igri' was produced. A linkage map was constructed with 91 markers. A sub-population of 41 lines was characterised for different components of the anther culture response, and was used for quantitative trait loci (QTL) analysis. The vrs1 locus region on chromosome 2H, which determines inflorescence row type, was coincident with the largest putative QTL for number of embryos (nEMB) and albino plants. A region of chromosome 6H was associated with QTLs for nEMB and green plants. QTLs for number and percentage of green plants were located on the long arm of chromosome 5H. Therefore, new QTLs for main components of barley anther culture response were identified on chromosomes 2H, 5H and 6H, indicating that anther culture response in barley could be controlled by relative few genes of large effect. This work is a useful step towards the identification of new regions on the barley genome that could be associated with fundamental biological process implicated in the anther culture response. ; X-W Chen was recipient of a fellowship from the Ministerio de Educación y Cultura from the Spanish government. The research was supported by Projects PB97-1159, and AGL2001-1631 from Plan Comisión Interministerial de Ciencia y Tecnología of Spain. ; Peer reviewed