scholarly journals Immunological and Microwear Analysis of Chipped-Stone Artifacts from Piedmont Contexts

1996 ◽  
Vol 61 (1) ◽  
pp. 127-135 ◽  
Author(s):  
Michael Petraglia ◽  
Dennis Knepper ◽  
Petar Glumac ◽  
Margaret Newman ◽  
Carole Sussman
Keyword(s):  
Potential Utility ◽  
Negative Effects ◽  
Stone Artifacts ◽  
Chipped Stone ◽  
Immunological Analysis ◽  
Microwear Analysis ◽  
Virginia Piedmont ◽  
Positive Results

Immunological and microwear analysis was performed on 100 chipped-stone artifacts from four prehistoric sites located in the Virginia Piedmont. A total of 20 artifacts returned positive results for immunological analysis and 16 artifacts returned microwear results. The findings indicate the negative effects of postdepositional processes and the potential utility of the techniques for deciphering prehistoric activities, otherwise unavailable by conventional studies in piedmont contexts. The study further illustrates the value and problems associated with immunological and microwear analyses on chipped-stone assemblages.

Lighting and Alzheimer’s disease and related dementias: Spotlight on sleep and depression

2021 ◽  
Vol 53 (5) ◽  
pp. 405-422
Author(s):  
MG Figueiro ◽  
HC Kales
Keyword(s):  
Alzheimer’S Disease ◽  
Older Adults ◽  
Alzheimer's Disease ◽  
Neurodegenerative Disease ◽  
Sleep Disturbances ◽  
Well Being ◽  
Pharmacological Intervention ◽  
Negative Effects ◽  
Health And Well Being ◽  
Positive Results

Alzheimer’s disease and related dementias is the collective term for a progressive neurodegenerative disease for which there is presently no cure. This paper focuses on two symptoms of the disease, sleep disturbances and depression, and discusses how light can be used as a non-pharmacological intervention to mitigate their negative effects. Bright days and dark nights are needed for health and well-being, but the present components of the built environment, especially those places where older adults spend most of their days, are too dimly illuminated during the day and too bright at night. To be effective light needs to be correctly specified, implemented and measured. Yet, without the appropriate specification and measurement of the stimulus, researchers will not be able to successfully demonstrate positive results in the field, nor will lighting designers and specifiers have the confidence to implement lighting solutions for promoting better sleep and mood in this population.

Chipped Stone Artifacts

2008 ◽  
pp. 169-178
Author(s):  
Malgorzata Kaczanowska ◽  
Janusz K. Kozłowski
Keyword(s):  
Stone Artifacts ◽  
Chipped Stone

scholarly journals Influence of false-positive mammography results on subsequent screening: do physician recommendations buffer negative effects?

2012 ◽  
Vol 19 (1) ◽  
pp. 35-41 ◽  
Author(s):  
Jessica T DeFrank ◽  
Barbara K Rimer ◽  
J Michael Bowling ◽  
Jo Anne Earp ◽  
Erica S Breslau ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Screening ◽  
False Positive ◽  
Well Being ◽  
Negative Consequences ◽  
Cancer Worry ◽  
Negative Effects ◽  
Screening Guidelines ◽  
Regular Screening ◽  
Positive Results

Objective Cancer screening guidelines often include discussion about the unintended negative consequences of routine screening. This prospective study examined effects of false-positive mammography results on women's adherence to subsequent breast cancer screening and psychological well-being. We also assessed whether barriers to screening exacerbated the effects of false-positive results. Methods We conducted secondary analyses of data from telephone interviews and medical claims records for 2406 insured women. The primary outcome was adherence to screening guidelines, defined as adherent (10–14 months), delayed (15–34 months), or no subsequent mammogram on record. Results About 8% of women reported that their most recent screening mammograms produced false-positive results. In the absence of self-reported advice from their physicians to be screened, women were more likely to have no subsequent mammograms on record if they received false-positive results than if they received normal results (18% vs. 7%, OR = 3.17, 95% CI = 1.30, 7.70). Receipt of false-positive results was not associated with this outcome for women who said their physicians had advised regular screening in the past year (7% vs. 10%, OR = 0.74, 95% CI = 0.38, 1.45). False-positive results were associated with greater breast cancer worry ( P < .01), thinking more about the benefits of screening ( P < .001), and belief that abnormal test results do not mean women have cancer ( P < .01), regardless of physicians' screening recommendations. Conclusion False-positive mammography results, coupled with reports that women's physicians did not advise regular screening, could lead to non-adherence to future screening. Abnormal mammograms that do not result in cancer diagnoses are opportunities for physicians to stress the importance of regular screening.

Norton Hunters and Fisherfolk

2016 ◽  
Author(s):  
Don Dumond
Keyword(s):  
Material Culture ◽  
Coastal Areas ◽  
Coastal Resources ◽  
Bering Strait ◽  
The South ◽  
Alaska Peninsula ◽  
Stone Artifacts ◽  
Chipped Stone ◽  
The North ◽  
Northern Alaska

By the late centuries B.C., occupations assigned to Norton people are reported from a southern point on the Alaska Peninsula, then north and eastward along coastal areas to a point east of the present border with Canada. The relatively uniform material culture suggests origin from the north and west (pottery from Asia, chipped-stone artifacts from predecessors in northern Alaska), as well as from the south and east (lip ornaments or labrets, and pecked-stone lamps burning sea-mammal oil). In early centuries A.D., Norton people north and east of Bering Strait yielded to Asian-influenced peoples more strongly focused on coastal resources, while those south of the Strait collected in sites along salmon-rich streams where they developed with increasing sedentarism until about A.D. 1000, when final Thule-related expansion along coasts from the north displaced or incorporated Norton remnants.

The Columbia-Fraser Region and the Northwest Coast

1950 ◽  
Vol 6 ◽  
pp. 36-40
Author(s):  
Marian W. Smith
Keyword(s):  
Northwest Coast ◽  
Bone Tools ◽  
Stone Artifacts ◽  
Chipped Stone ◽  
Ground Stone ◽  
Marine Economy ◽  
Wood Sculpture ◽  
Stone Carving

The archaeology of the Columbia-Fraser region in the southern Northwest Coast is more complicated than early generalizations woilld have led one to suspect. Although there has been a constant adaptation to a river and marine economy, variations within that economy are marked and may be tentatively identified by the presence of bone and stone carving, and by the proportion.of stone to bone tools. Using these criteria, four cultural phases may be recognized: (1) Late Bone, which ties with historically known Indian groups and occurs throughout the region. It has wood sculpture but no carving in bone or stone; there are a few ground stone artifacts but chipped stone is rare. (2) Early Bone, which has the greatest antiquity and is apparently the richest culture of the region, having elaborate carving in bone and stone, beaten copper, a large variety of bone artifacts, and a number of stone pieces both ground and chipped.

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