Supernumerary lumbar rib in human prehistory

Human Prehistory: The Message from Linkage Disequilibrium

The vast amount of information being gathered about human DNA sequence variation raises the question of what these data can tell us about events in our past. A new way has been found by which patterns of linkage disequilibrium can be used to detect the effects of natural selection in human prehistory.

Human Prehistory: Hunting for the Earliest Farmers

The degree to which the spread of farming into Europe was accompanied by demographic shifts is subject to intense debate. Genetic evidence from Europe's first farmers and their hunter-gatherer counterparts now suggests an important role for the immigration of farmers.

Human rib cage distortability.

In five normal men, we divided the rib cage into lung-apposed [pulmonary rib cage (RCp)] and diaphragm-apposed [abdominal rib cage (RCab)] compartments and calculated their absolute cross-sectional areas (Arc,p and Arc,ab) by anteroposterior and lateral dimensions measured by magnetometry. Distortion was quantified as the displacement of RCp and RCab produced by diaphragmatic twitches away from...

The association between lumbar rib and lumbosacral transitional vertebrae

Small Supernumerary Marker Chromosomes in Human Infertility.

Small supernumerary marker chromosomes (sSMC) are structurally abnormal chromosomes that cannot be unambiguously identified by banding cytogenetics. The objective of this study was to provide an overview of sSMC frequency and characterization in a context of infertility and to review the literature describing sSMC in relation with male and female infertility. Therefore, a systematic literature ...