What was known about tropical reef algae prior to the use of scuba came largely from dredging studies or drift collections, which usually resulted in highly mutilated specimens and questionable habitat data. Scuba allows a precise determination of ecological conditions and permits in situ photography, two techniques our group has relied on during the past three decades for quantitative studies ...

One of the biggest successes of the standard Big Bang cosmology is the prediction of the existence and black body nature of Cosmic Microwave Background (CMB). Observations and measurements of the CMB radiation by COBE (COsmic Background Explorer), WMAP (Wilkinson Microwave Anisotropy Probe) and Planck show an almost isotropic blackbody radiation with temperature TCMB = 2.726 ± 0.010 K (Mather e...

There is ample evidence from adoptive transfer experiments that the actual number of antigenreactive cells present at the site of a delayed hypersensitivity skin reaction is very small [1] . The large majority of cells infiltrating the lesion appear to be immunologically uncommitted, and have been attracted to the site by the few antigenresponding cells or substances produced by these cells. It...

The question mark in the heading of this series is deliberate. The most confidently applied diagnoses used for neurological disease are perhaps those in which a reasonably stereotypical clinical presentation has a known pathological substrate, in turn the consequence of a specific biochemical or enzymatic dysfunction. McArdle’s disease springs to mind as one such example, although even there so...