Apr 1, 2011
Sperm condensation – Protamines are small basic proteins that condense the genetic material, the DNA, in mature sperm helping to form the head of the sperm. They are rich in the amino acid arginine whose residues are distributed in a number of stretches separated by neutral amino acids. The amino acid accounts for between 60 and 80 percent of the protamine. Now, a team in Spain has used Fourier transform infrared spectroscopy to investigate, …
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Aug 1, 2008
One of the main tasks in my day-to-day work as a science writer is tracking down experts. The web makes this much easier than it ever was for journalists in decades since. There are times when a contact in a highly specialist area does not surface quickly but there are also times when I know for a fact that I’ve already been in touch with an expert in a particular …
Jul 7, 2008
Sciencebase readers will likely be aware that when I cite a research paper, I usually use the DOI system, the Digital Object Identifier. This acts like a redirect service taking a unique number, which might look like this assigned to each research paper by its publisher and passing it to a server that works out where the actual paper is on the web.
The DOI system has several handlers, and …
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