67 research outputs found
Assessing the growth and climate sensitivity of secondary forests in highly deforested Amazonian landscapes
Tropical forests hold 30% of Earthâs terrestrial carbon and at least 60% of its terrestrial biodiversity, but forest loss and degradation are jeopardizing these ecosystems. Although the regrowth of secondary forests has the potential to offset some of the losses of carbon and biodiversity, it remains unclear if secondary regeneration will be affected by climate changes such as higher temperatures and more frequent extreme droughts. We used a data set of 10 repeated forest inventories spanning two decades (1999â2017) to investigate carbon and tree species recovery and how climate and landscape context influence carbon dynamics in an older secondary forest located in one of the oldest postâColumbian agricultural frontiers in the Brazilian Amazon. Carbon accumulation averaged 1.08 Mg¡haâ1¡yrâ1, and species richness was effectively constant over the studied period. Moreover, we provide evidence that secondary forests are vulnerable to drought stress: Carbon balance and growth rates were lower in drier periods. This contrasts with drought responses in primary forests, where changes in carbon dynamics are driven by increased stem mortality. These results highlight an important climate changeâvegetation feedback, whereby the increasing dryâseason lengths being observed across parts of Amazonia may reduce the effectiveness of secondary forests in sequestering carbon and mitigating climate change. In addition, the current rate of forest regrowth in this region was low compared with previous panâtropical and Amazonian assessmentsâour secondary forests reached just 41.1% of the average carbon and 56% of the tree diversity in the nearest primary forestsâsuggesting that these areas are unlikely to return to their original levels on politically meaningful time scales
Attentive Learning of Sequential Handwriting Movements: A Neural Network Model
Defense Advanced research Projects Agency and the Office of Naval Research (N00014-95-1-0409, N00014-92-J-1309); National Science Foundation (IRI-97-20333); National Institutes of Health (I-R29-DC02952-01)
Job satisfaction dimensions in public accounting practice
This paper investigates gender differences in reported job satisfaction and career choices revealed by a postal survey of accountants from the Queensland Division of the Institute of Chartered Accountants in Australia. Of particular interest are levels of satisfaction with remuneration and promotion. Two moderating factors of career age and firm size are also considered. Consistent with prior research, female accountants reported dissatisfaction with their opportunities for promotion. However, unlike prior research there was no evidence of a gender effect in remuneration levels, and in reported satisfaction with remuneration. Nor were there differences in satisfaction across age bands, and public accounting firms of different size. The link between satisfaction levels of female accountants and their career choices of leaving their current employer, moving to parttime employment, or leaving the accounting profession was also investigated. Consistent with a large body of organisational and accounting research, low levels of job satisfaction were associated with higher turnover intentions for female accountants
Women entrepreneurs : jumping the corporate ship or gaining new wings.
Paper originally presented at the 30th International Conference of the Institute for Small Business and Entrepreneurship, 7-9 November 2007, Glasgow,UK.
Awarded Best Paper âWomenâs Enterprise and Family Enterprise Developmentâ track, ISBE Conference 2007 (ÂŁ500). Advances field through empirical investigation of push-pull dichotomy in career transition literature for women leaving corporate employment for entrepreneurship. Argues womenâs motivations for entrepreneurship remain unsatisfied until businesses evolved and they gained personal and professional development
Track D Social Science, Human Rights and Political Science
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/138414/1/jia218442.pd
WORKâFAMILY POLICIES AND PROGRAMMES IN A PROFESSIONAL SERVICES FIRM: USES AND EFFECTIVENESS
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