Experimental lithic tool displacement due to long-term animal disturbance

Short-term disturbance by a commercial two-dimensional seismic survey does not lead to long-term displacement of harbour porpoises

Assessments of the impact of offshore energy developments are constrained because it is not known whether fine-scale behavioural responses to noise lead to broader-scale displacement of protected small cetaceans. We used passive acoustic monitoring and digital aerial surveys to study changes in the occurrence of harbour porpoises across a 2000 km(2) study area during a commercial two-dimensiona...

Smith Creek Lithic Tool Analysis

Long - Term Earnings Losses due to Mass

This paper uses longitudinal data from Social Security records covering up to 30 years of earnings to present the first national estimates of the long-term cost of job displacements during the 1982 recession. We use a new longitudinal data set containing firm size to isolate workers who separate from their stable job during a sudden mass-layoff. When we compare the workers displaced from their ...

Long-Term Nonemployment and Job Displacement

The unprecedented rise in long-term unemployment (LTU) during the Great Recession has raised the question whether LTU contributed to the persistent decline in the aggregate employment rate. An important difficulty in evaluating this question is that standard measures do not capture the duration of joblessness for the rising number of nonemployed workers not formally classified as unemployed in ...

Improvement in Memory and Brain Long-term Potentiation Deficits Due to Permanent Hypoperfusion/Ischemia by Grape Seed Extract in Rats

  Objective(s): Cerebral hypoperfusion/ischemia (CHI) is a neurological disease where impaired hippocampus electrical activity and cognition caused by a serial pathophysiological events. This study aimed to evaluate the effects of chronic oral administration of grape seed extract (GSE) on passive avoidance memory and long-term potentiation (LTP) after permanent bilateral common carotid arteries...