The researchers observed all three of the necessary components that define cumulative cultural evolution: progressive increase in performance over time, emergence of systematic structures, and "lineage specificity," meaning knowledge shared specifically within the group.
We use a 20-year time series of systematic aerial surveys of dugong (Dugong dugong) abundance to create spatially-explicit models of dugong distribution and relative density at the scale of the coastal waters of northeast Australia (∼136,000 km2).
Additional file 1: Video featuring a real time demonstration of systematic brain trimming.
Barriers also existed to undertaking regular monitoring of young people prescribed medication, including a lack of doctors, a perceived lack of expertise of case managers, and lack of time for systematic monitoring resulting in reliance on a passive approach, dependent on client spontaneous report [ 15].
Part of the Trump phenomenon is that we've arrived at this moment in time of a systematic failure of the Republican Party; we've lived through an era of fraud that is really unprecedented in this country, going back to Enron and WorldCom and sports and the Catholic Church and on and on and on.
The median survival time of a systematic review has been estimated to be about six years.
Since last Monday morning, almost half a million riders of buses and trains, from Trenton to Hoboken to Hackettstown, have been subject for the first time to systematic searches of their bags and luggage.
But in times of large systematic risks to the stock market (like what we've seen during the last five years), the value of diversification among equity asset classes can often go away.
Despite a wide search, we found few evaluations of strategies that emphasised the time-saving aspect of systematic reviews, their importance relative to other sources of information and their ability to improve self-confidence in using evidence.
