77 research outputs found
Testing for Differentially-Expressed Genes by Maximum-Likelihood Analysis of Microarray Data
Defining organizational contributions to sustaining an ageing workforce:a bibliometric review
The ageing of populations worldwide has implications for workforces in developed countries, and labour shortages have increasingly become a political concern. Governments in developed countries have responded by increasing the retirement age as a strategy for overcoming the fall in labour supply. Using bibliometric techniques, we reviewed 122 articles published between 1990 and 2018 to examine the effectiveness of the strategy in addressing the labour shortages and, in particular, to identify the factors that contribute positively to maintaining worker participation within an ageing workforce at an organizational level. The results identified five organizational factors that support continued participation: health, institutions, human resource management, human capital and technology tools. Employers will increasingly need to develop “age-friendly” workplaces and practices if they are to recruit and retain older workers.</p
Beech (Fagus grandifolia) in the Plant Communities of Long Island, New York, and Adjacent Locations, and Some Comparisons Across Eastern North America
Persisting Natural Vegetation in Northern Queens County, New York, With Proposals for its Conservation
Northern Queens County, on western Long Island, has approximately 5% or less of its 145 km2 area occupied by vegetation that is still essentially natural. The history, climate, geology, and soil, of the region are discussed, and the importance of glacial geology in an understanding of the vegetation is emphasized. Vegetation is outlined for a series of upland, freshwater, and salt-influenced, types. The variants of the oak-dominated forest are presented in a table. The following freshwater vegetation types are listed: swamp and riparian forest, shrub swamp, marshes, and floating and submerged aquatic vegetation. Salt-influenced types include: tall cordgrass, salt meadow, and salt shrub swamp. The antiquity of this vegetation is suggested by its uniformity over a time-span of 50–60 or more years since its original description as natural vegetation. Extinct and endangered types are mentioned, and general sources of human impact on all persisting types are discussed. Recommendations are made for preservation, reclamation, and re-creation, of natural vegetation. Specifically, it is recommended that all persisting areas harbouring natural vegetation be preserved immediately and in perpetuity. It will be interesting to see, in due course, how effective this can be within the confines of one of the world's greatest conurbations. Consideration of topo-edaphic variation in planning for preservation is emphasized. This point is illustrated with reference to the major vegetation of northern Queens County, namely oak forest. Almost all of the typical ‘plateau upland’ forest has been lost, even though preservation of the diversity of the rich, but atypical, end moraine forests seems adequate.It is hoped that this article will stimulate investigation into means of re-creating some of the original vegetation types, in order to provide as great a representation as possible, and to alleviate the human impact on the endangered surviving types.</jats:p
Spring Wildflowers of the Northeast: A Natural History Carol Gracie . 272pp. Princeton and Oxford. Princeton University Press. USD $29.95. ISBN: 978-0-691-14466-5. Hardcover.
Vascular flora of Caumsett State Historic Park, Lloyd Neck, Long Island, New York: corrections and additions II
Stone Fort at Fort Totten: Last Habitat for Woodsia obtusa and Asplenium platyneuron in Queens County, Long Island, New York?
Volume: 73Start Page: 6End Page:
- …
