When did Plates Start Breaking Up?

When did the 2001 recession really start ?

The paper develops a non-parametric, non-stationary framework for business-cycle dating based on an innovative statistical methodology known as Adaptive Weights Smoothing (AWS). The methodology is used both for the study of the individual macroeconomic time series relevant to the dating of the business cycle as well as for the estimation of their joint dynamic. Since the business cycle is defin...

When did the human population size start increasing?

We analyze the frequency spectra of all available human nuclear sequence data sets by using a model of constant population size followed by exponential growth. Parameters of growth (more extreme than or) comparable to what has been suggested from mtDNA data can be rejected for 6 out of the 10 largest data sets. When the data are separated into African and non-African samples, a constant size no...

When did COPP start and who is COPP?

One of my first questions as a newly elected member of COPP (NJSNA’s Congress on Policy and Practice) was WHEN did it start and what happened to the Cabinet on Practice? The answer was in the archives at NJSNA Headquarters; so I journeyed there for a look into the past. If you remember our 100th Anniversary celebration in 2002, then you know that NJSNA was incorporated in 1902. Yet, the first m...

Breaking plates.

ome of the consequences of the motion of Earth's tectonic plates are quite evident: various mountain chains for instance. Others, such as events occurring deep in subduction zones where one plate plunges beneath another, can be seen only indirectly through seismic imaging techniques. The approach allows the structure of Earth's interior to be reconstructed from observed seismograms, and it cont...

Editorial: When Did We Start Doing That? Documenting the Evolution of Health Information in Australia.