The Misidentification of Mesoamerican Lithic Workshops

1990 ◽  
Vol 1 (3) ◽  
pp. 268-279 ◽  
Author(s):  
Hattula Moholy-Nagy
Keyword(s):  
Reliable Indicator ◽  
Present Evidence ◽  
Life Trajectories ◽  
Past Behavior

In Mesoamerica concentrations of stone debitage from archaeological contexts frequently are regarded as being in primary contexts and marking production loci or “workshops.”Ethnoarchaeological observations of stone- and glass-artifact manufacture and disposal of the resulting waste indicate that in sedentary societies debitage does not remain in primary context at workshops, but rather enters secondary context when it is moved into workshop dumps. Microdebitage, which often is left in place at the production locus, appears to be the most reliable indicator of workshop location.An awareness of ethnoarchaeological data can facilitate more plausible constructions of past behavior at different stages of the use-life trajectories of durable materials. Present evidence suggests that concentrations of stone debitage from archaeological settlements are secondary deposits and represent workshop dumps, not workshops.

A Quick Visual Mind Can be a Slow Auditory Mind

2009 ◽  
Vol 56 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Sander Martens ◽  
Addie Johnson ◽  
Martje Bolle ◽  
Jelmer Borst
Keyword(s):  
Attentional Blink ◽  
Task Difficulty ◽  
Human Mind ◽  
Visual Modality ◽  
Present Evidence ◽  
Conscious Level ◽  
Visual Targets ◽  
Concurrent Information

The human mind is severely limited in processing concurrent information at a conscious level of awareness. These temporal restrictions are clearly reflected in the attentional blink (AB), a deficit in reporting the second of two targets when it occurs 200–500 ms after the first. However, we recently reported that some individuals do not show a visual AB, and presented psychophysiological evidence that target processing differs between “blinkers” and “nonblinkers”. Here, we present evidence that visual nonblinkers do show an auditory AB, which suggests that a major source of attentional restriction as reflected in the AB is likely to be modality-specific. In Experiment 3, we show that when the difficulty in identifying visual targets is increased, nonblinkers continue to show little or no visual AB, suggesting that the presence of an AB in the auditory but not in the visual modality is not due to a difference in task difficulty.

What have I done? The influence of priming on the recall of past behavior

2007 ◽  
Author(s):  
Chris Loersch ◽  
Valerie E. Jefferis ◽  
B. Keith Payne
Keyword(s):  
Past Behavior

Future behavior is seen as more intentional than past behavior

2011 ◽  
Author(s):  
Zachary C. Burns ◽  
Eugene M. Caruso ◽  
Daniel M. Bartels
Keyword(s):  
Past Behavior ◽  
Future Behavior

Anticipated ambiguity prolongs the present: Evidence of a return trip effect.

2016 ◽  
Vol 145 (11) ◽  
pp. 1415-1419 ◽  
Author(s):  
Sam J. Maglio ◽  
Cherrie Y. N. Kwok
Keyword(s):  
Trip Effect ◽  
Present Evidence ◽  
Return Trip

The Gold Medal

2017 ◽  
Vol 6 (2) ◽  
pp. 90-91
Author(s):  
Camilo Perez
Keyword(s):  
Home Country ◽  
Gold Medal ◽  
Life Trajectories ◽  
Material Things ◽  
Past Experiences ◽  
Normalization Of Violence

Objects are not just material things but containers of memories. They occupy a particular place in our life trajectories, and as we re-encounter them in the act of remembering, as we assort them in new assemblages through the act of storytelling, new layers of meaning, affect, and emotion may emerge. In this performance script, the intersection of three objects—“a gold medal,” a “gun,” and “a steak”—become an avenue to explore my past experiences and re-visit, re-think the issue of the normalization of violence in my home country, Colombia.

Classification of small type B/C follicles as primordial follicles in mature rats

Reproduction ◽  
2000 ◽  
pp. 43-48 ◽  
Author(s):  
S Meredith ◽  
G Dudenhoeffer ◽  
K Jackson
Keyword(s):  
Dna Synthesis ◽  
Granulosa Cells ◽  
Single Layer ◽  
Reliable Indicator ◽  
Type B ◽  
Primordial Follicles ◽  
Type C

In the present study, follicles were classified according to the morphology of their granulosa cells. Type B follicles contained only flattened granulosa cells; type B/C follicles had a mixture of flattened and cuboidal granulosa cells in a single layer, and type C follicles had a single layer of cuboidal granulosa cells. The primary objectives of the study were to determine whether 5-bromo-2-deoxyuridine incorporation into type B/C follicles was a marker for initiation of growth and how long type B/C follicles could remain at the same stage before transformation to type C follicles. Female Holtzman rats received bromo-deoxyuridine for 7 days. After the infusion (day minipumps were removed = day 0), rats were ovariectomized on days 0 (n = 9), 30 (n = 8), 90 (n = 8) and 150 (n = 9). The numbers of type B, B/C and C follicles within one ovary were determined using modified fractionator counting. Analysis over all times demonstrated that there were more (P < 0.0001) type B/C (941 +/- 61 per ovary) than type C (140 +/- 18 per ovary) or type B (159 +/- 19 per ovary) follicles. The numbers of type B and type C follicles did not differ from each other at any time. Only one of 34 rats evaluated had bromo-deoxyuridine-labelled type B follicles. On day 150, 57% of the bromo-deoxyuridine-labelled type B/C follicles remained from day 0. It is concluded that (1) DNA synthesis in granulosa cells of type B/C follicles is not a reliable indicator of impending growth; and (2) type B and type B/C follicles are both components of the pool of primordial follicles.

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