On the Macroscopic Identification of Used Flakes

1990 ◽  
Vol 55 (2) ◽  
pp. 403-409 ◽  
Author(s):  
Donald Young ◽  
Douglas B. Bamforth
Keyword(s):  
Common Method ◽  
Stone Artifacts ◽  
Microwear Analysis ◽  
Edge Damage ◽  
Macroscopic Identification

The most common method used by archaeologists to identify flaked-stone artifacts that were used by prehistoric people to accomplish some task is to inspect an artifact's edges for macroscopic edge damage. The results of a test of this “no-magnification” approach to microwear analysis indicate that such an approach is likely to produce highly inaccurate and biased data in many or most cases.

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.

scholarly journals Stone implement from the early Neolithic layers in Rakushechny Yar (on the example of the researches of 2016-2017)

2018 ◽  
Vol 7 (3) ◽  
pp. 153-159
Author(s):  
Susanna Pavlovna Gorodetskaya
Keyword(s):  
Coastal Zone ◽  
Stone Tools ◽  
Early Neolithic ◽  
Economic Activities ◽  
Stone Artifacts ◽  
Fish Bones ◽  
Microwear Analysis ◽  
Lower Volga

The article shows the analysis of the collection of the stone artifacts obtained as a result of excavations of the early Neolithic layers of the site Rakushechny Yar. The collection of the stone tools makes it possible to get an idea about the flaking technology, oriented to obtaining blades. However, the absence of the products of debitage on the site indicates that flaking and tool production were realized outside the site. For secondary modification inhabitants of the site used such techniques as retouching and polishing. The tools assemblage was represented mainly by points that were used as drills, end-scrapers and polished axes, which indicates the specific economic activities of the inhabitants of the site, associated with the woodworking. The stone implement of the site has analogies not only in the Neolithic sites of the region, but also in the Neolithic stone implements of the sites of the Lower Volga and Northern Caspian Regions. Taking into account that the investigated part of the site was a coastal zone at one time, as well as the presence of a large number of fish bones in the lower layers, it can be assumed that the use of the above categories of tools was somehow connected with fishing. This assumption can be confirmed by microwear analysis of the stone tools.

The Role of Positive and Negative Affectivity in Healthy and Unhealthy Work-Related Behavior and Experiences

2019 ◽  
Vol 26 (2) ◽  
pp. 56-67 ◽  
Author(s):  
Hanna Hofmann ◽  
Carl-Walter Kohlmann
Keyword(s):  
Negative Affectivity ◽  
Coping Behavior ◽  
Common Method ◽  
Positive Affectivity ◽  
Work Related ◽  
Teacher Students ◽  
And Behaviors ◽  
Main Effects ◽  
Positive And Negative Affectivity

Abstract. Positive affectivity (PA) and negative affectivity (NA) are basic traits that affect work-related perceptions and behaviors and should be considered in any assessment of these variables. A quite common method to assess healthy or unhealthy types of work-related perceptions and behaviors is the questionnaire on Work-Related Coping Behavior and Experience Patterns (WCEP). However, the association of PA and NA with WCEP remained unclear. In a sample of teachers, physiotherapists, and teacher students ( N = 745; Mage = 35.07, SD = 12.49; 78% females), we aimed to identify the relevance of these basic traits. After controlling for age, gender, and type of occupation, we found main effects of PA and NA, with the specific combination of PA and NA being decisive for predicting the assignment to a WCEP type. The results highlight the need to include PA and NA in future assessments with the WCEP questionnaire.

Common method variance in NEO-FFI and IPIP personality measurement

2009 ◽  
Author(s):  
Michael Biderman ◽  
Nhung T. Nguyen ◽  
Christopher J. L. Cunningham
Keyword(s):  
Common Method ◽  
Personality Measurement ◽  
Common Method Variance ◽  
Method Variance

Survival of giardia, cryptosporidium, poliovirus and salmonella in marine waters

1997 ◽  
Vol 35 (11-12) ◽  
pp. 261-268 ◽  
Author(s):  
D. C. Johnson ◽  
C. E. Enriquez ◽  
I. L. Pepper ◽  
T. L. Davis ◽  
C. P. Gerba ◽  
...  
Keyword(s):  
Water Quality ◽  
Salmonella Typhimurium ◽  
Cryptosporidium Parvum ◽  
Common Method ◽  
Waterborne Pathogens ◽  
Protozoan Parasites ◽  
Marine Waters ◽  
Untreated Sewage ◽  
Cryptosporidium Parvum Oocysts ◽  
Giardia Muris

Discharge of sewage into the ocean is still a common method of disposal worldwide. Both treated and untreated sewage may contain significant concentrations of waterborne pathogens, such as Giardia, Cryptosporidium, poliovirus and Salmonella. Limited studies exist on the survival of poliovirus and Salmonella in marine waters; however, almost no information exists on the survival of protozoan parasites in marine waters. This study examined the survival of Giardia muris cysts, Cryptosporidium parvum oocysts, poliovirus-1 and Salmonella typhimurium in marine waters. The survival of the microorganisms varied according to the presence of light, salinity and water quality (as determined by quantity of enterococci). All microorganisms survived longer in the dark than in sunlight, the order of survival in sunlight being: Cryptosporidium > poliovirus > Giardia > Salmonella.

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