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Messages - RD
« on: 20/01/2019 19:19:57 »
Very strange that the one on the left looks so odd to me, yet the one on the right is fine.
A bit like the Thatcher illusion : if the details look OK, the context can be wrong, but goes unnoticed.
BTW Eric's nipples are on-point & his areolas are on-the-button ... https://www.facebook.com/ericjcatalano/photos/a.1389728614468392/1855979884509927/
Physics, Astronomy & Cosmology / Re: Is a mains-powered light bulb flashing on and off 100 times per second?« on: 05/01/2019 14:40:32 »
« on: 29/12/2018 09:24:44 »
« on: 28/12/2018 16:52:13 »
« on: 18/10/2018 12:57:35 »
Could you put the drive into an other computer running Linux and off load any valuable files then make a fresh start ?
You don't have to physically remove the hard-drive to do that : it is possible to run a live-OS (Linux or Windows) from a CD/DVD/USB on the same computer to access the hard-drive data, (assuming UEFI permits the live OS to be installed, and there is no disk-encryption on the hard-drive).
[ BTW this thread smells like a set-up for someone to sell a proprietary third-party software-solution ]
« on: 29/09/2018 05:00:32 »
This was in-line with the answer I gave, although it's nice now to have that reference ...
Here's a link the paper referenced in the BBC article ...
Finding the needle in the haystack: Differentiating “identical” twins in paternity testing and forensics by ultra-deep next generation sequencing.https://www.sciencedirect.com/science/article/pii/S1872497313002275
Monozygotic (MZ) twins are considered being genetically identical, therefore they cannot be differentiated using standard forensic DNA testing. Here we describe how identification of extremely rare mutations by ultra-deep next generation sequencing can solve such cases. We sequenced DNA from sperm samples of two twins and from a blood sample of the child of one twin. Bioinformatics analysis revealed five single nucleotide polymorphisms (SNPs) present in the twin father and the child, but not in the twin uncle. The SNPs were confirmed by classical Sanger sequencing. Our results give experimental evidence for the hypothesis that rare mutations will occur early after the human blastocyst has split into two, the origin of twins, and that such mutations will be carried on into somatic tissue and the germline. The method provides a solution to solve paternity and forensic cases involving monozygotic twins as alleged fathers or originators of DNA traces.
I'd want to see it being replicated, (rather than just one pair of twins), before being confident paternity in all cases can be established.
The cost of full genome sequencing has plummeted in the last decade, so it's now a feasible option ...
« on: 28/09/2018 15:55:17 »
Apparently if their entire genomes are sequenced it could be determined who's the daddy ...
Quote from: bbc.co.uk
Gradl and his team took samples from a pair of male twins and looked at the entire three-billion-letter sequence, and they found a few dozen differences in their DNA.https://www.bbc.co.uk/news/magazine-25371014
The scientists also tested the son of one of the men, and found he had inherited five of the mutations from his father.
Having analysed the results, they are confident that they can now tell any twin from another, and from their children.
... can we assume the same for iron nanoparticles? ...
The iron in tattoo-ink can be a problem ... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3445217/
The following users thanked this post: scientizscht
Geology, Palaeontology & Archaeology / Re: Did glaciation produce this smooth, undulating rock surface?« on: 10/09/2018 02:23:20 »
The results of glacial polish aren't necessarily flat : some have a sand-dune look ...
cf. laminar Vs turbulent flow.
cf. laminar Vs turbulent flow.
The following users thanked this post: Bruce
« on: 04/08/2018 04:27:02 »
Any suggestions welcome before I scrap it altogether and go with the backups ...Recuva is a free Windows data-recovery program, worth a try.
It can be set to recuva files even though you haven't deleted them ...
set Recuva to scan for non-deleted files.png (37.08 kB . 440x545 - viewed 3272 times)
You should recuva the data to a different drive than the source.
The following users thanked this post: vhfpmr
« on: 29/07/2018 00:03:02 »
Grapefruit juice can interfere with drug-delivery ...
The following users thanked this post: Karen W.
« on: 02/07/2018 11:01:23 »
... why do some metals ... stay colored after they cool?
The colours are due to oxides which have formed during the heating process : the metal has reacted with the oxygen in the air ...
« on: 26/06/2018 21:40:51 »
sunset is North East.png (280.8 kB . 835x698 - viewed 3416 times)
The following users thanked this post: saspinski
« on: 14/06/2018 05:59:51 »
Even if the above post is a true account it's an anecdote, see ... https://en.wikipedia.org/wiki/Anecdotal_evidence
Quote from: cancerresearchuk
... at the moment there isn’t enough reliable evidence to prove that cannabinoids – whether natural or synthetic – can effectively treat cancer in patientshttp://scienceblog.cancerresearchuk.org/2012/07/25/cannabis-cannabinoids-and-cancer-the-evidence-so-far/