Search found 494 matches

by justaman
Mon Nov 07, 2011 3:32 am UTC
Forum: News & Articles
Topic: New broad spectrum anti-viral developed at MIT
Replies: 48
Views: 9416

Re: New broad spectrum anti-viral developed at MIT

iop wrote:Which is probably why this was published in PLOS One.

Maybe, though many institutions now require that works funded by them are published in open access publications first. Having said that, PLOS One, isn't exactly the highest rated of the lot.
by justaman
Mon Nov 07, 2011 1:21 am UTC
Forum: News & Articles
Topic: New broad spectrum anti-viral developed at MIT
Replies: 48
Views: 9416

Re: New broad spectrum anti-viral developed at MIT

Of course they have doubts. If they didn't have doubts, they aren't doing science. This isn't the power of positive thinking about crystals, this is science . And in science, you doubt that anything will work, and you work out ways it won't work, and you test the ways that it won't work, and only a...
by justaman
Sun Nov 06, 2011 8:17 pm UTC
Forum: News & Articles
Topic: New broad spectrum anti-viral developed at MIT
Replies: 48
Views: 9416

Re: New broad spectrum anti-viral developed at MIT

Your drawing false conclusions from the data. The results of the study conclude that it works when taken at or near the time of infection. It very well could be effective several cycles past infection but that data was not collected. Making the assumption that it would be ineffective doesn't seem t...
by justaman
Sat Nov 05, 2011 10:11 pm UTC
Forum: News & Articles
Topic: New broad spectrum anti-viral developed at MIT
Replies: 48
Views: 9416

Re: New broad spectrum anti-viral developed at MIT

Just wanted to add another point about resistance. It might not be a given that viruses will be able evolve resistance to every type of drug we develop, and a lot probably depends on the drug's mechanism of action. A analogous example might be the use of antibiotics and hand sanitizers and bacteria...
by justaman
Tue Oct 04, 2011 8:03 pm UTC
Forum: Science
Topic: A solar cell experiment with unfathomable results
Replies: 19
Views: 3922

Re: A solar cell experiment with unfathomable results

Note - I'm a biologist, so may well be talking out my arse here... How about some sort of piezoelectric effect? IIRC most solar cells have some sort of crystalline wafer like thing inside - perhaps as you are adding weight to the beaker, the cell is being bent and causing a piezoelectric effect - wh...
by justaman
Tue Sep 27, 2011 8:05 pm UTC
Forum: Science
Topic: Cell Growth Models
Replies: 4
Views: 1092

Re: Cell Growth Models

The rate of cell growth is very dependent on the conditions in which the cells are grown, so it all depends on your medium type, temperature of incubation, serum concentration, how often you change the medium/split the cells, type of culture vessel you are using, how old the cells are (i.e. how long...
by justaman
Thu Sep 15, 2011 7:59 am UTC
Forum: News & Articles
Topic: Aussies have 3rd gender passports
Replies: 21
Views: 3676

Aussies have 3rd gender passports

http://www.bbc.co.uk/news/world-asia-pacific-14926598 Aussies are now able to select a third option for gender when applying for a passport. The gender is "indeterminate" and will appear as an X in the passport. Transgender people can also get passports issued in their sexual identity. Go...
by justaman
Sun Sep 11, 2011 3:41 am UTC
Forum: Science
Topic: Creating Acellular Organ Scaffolds
Replies: 22
Views: 3571

Re: Creating Acellular Organ Scaffolds

For SDS solutions typically less than 1% is heaps. In practice, pretty much any detergent will work, it's just that people use SDS as it is relatively cheap and quite definied and fairly strong as detergents go. If you do come across some SDS, it is very electrostatic and forms a very fine powder th...
by justaman
Thu Aug 11, 2011 1:00 am UTC
Forum: News & Articles
Topic: New broad spectrum anti-viral developed at MIT
Replies: 48
Views: 9416

Re: New broad spectrum anti-viral developed at MIT

The journal article* goes into a bit of detail about it. I don't pretend to understand it all, but it seems that the PKR enzyme in our cells detect dsRNA and then there are a bunch of intermediate steps before apoptosis that viruses can f around with. The DRACO enzyme skips directly to the end. I'm...
by justaman
Wed Aug 10, 2011 9:19 pm UTC
Forum: News & Articles
Topic: New broad spectrum anti-viral developed at MIT
Replies: 48
Views: 9416

Re: New broad spectrum anti-viral developed at MIT

What about all the DNA viruses? So far, it only works for double-stranded RNA viruses . Rotavirus, which causes severe diarrhea ("stomach flu"), is one of those. Something like this should only be used in life-threatening cases to prevent resistance. IIRC some viruses can block apoptosis;...
by justaman
Wed Jul 27, 2011 10:50 pm UTC
Forum: Science
Topic: Herring Sperm
Replies: 10
Views: 2376

Re: Herring Sperm

All you have to do to harvest any fish sperm or eggs, is to find one that is ready to spawn and give it a squeeze near the vent, and out it comes, in copious amounts Um... Is this something you've done personally? Are there people employed full time in this vocation to meet the worldwide demand? No...
by justaman
Tue Jul 26, 2011 8:58 pm UTC
Forum: Science
Topic: Herring Sperm
Replies: 10
Views: 2376

Re: Herring Sperm

Herring sperm was used as it is an easy to get source of sperm. All you have to do to harvest any fish sperm or eggs, is to find one that is ready to spawn and give it a squeeze near the vent, and out it comes, in copious amounts (think about how they fertilize the eggs- in open water- so you need a...
by justaman
Sun Jul 24, 2011 9:21 am UTC
Forum: Science
Topic: Enzymes
Replies: 2
Views: 881

Re: Enzymes

They are, and I don't think the digestion rates are different from any other protein - it's just that there are massive amounts produced continuously.
by justaman
Sat Jul 16, 2011 1:16 am UTC
Forum: News & Articles
Topic: Maori MP refuses to swear allegiance to the Queen.
Replies: 91
Views: 8196

Re: Maori MP refuses to swear allegiance to the Queen.

Basically the guy tried to swear an oath on the "Treaty of Waitangi" which is the agreement between the colonial power and the indigenous peoples of NZ - the english and maori versions of what was agreed to differ significantly... the english version has the Queen as the head of state and ...
by justaman
Wed Jul 13, 2011 9:01 pm UTC
Forum: News & Articles
Topic: Pastafarian wears sieve in drivers licence photo
Replies: 56
Views: 9800

Pastafarian wears sieve in drivers licence photo

An Austrian man who professes to be "Pastafarian" has had his religious right recognised, allowing him to wear a sieve/strainer as headgear in an ID photo for a driver's licence. It has taken him 3 years and a medical interview (to prove that he is fit to drive), before he was allowed the ...
by justaman
Mon Jun 27, 2011 10:12 pm UTC
Forum: Science
Topic: What are some good scientific journals for free online?
Replies: 6
Views: 1863

Re: What are some good scientific journals for free online?

Try PubMed Central - all the entries listed on there are free. Many of the major journals have free access for all articles older than 1 year (Nature Publishing Group is really good for this). Otherwise - head along to your local University Library, most of them will have access to pretty much any j...
by justaman
Thu Jun 23, 2011 10:14 am UTC
Forum: Science
Topic: Books on Genetics
Replies: 7
Views: 1280

Re: Books on Genetics

Try Recombinant DNA by Watson et al.
by justaman
Wed Jun 22, 2011 9:38 pm UTC
Forum: Science
Topic: New chip able to sequence genome in hours!
Replies: 6
Views: 1694

Re: New chip able to sequence genome in hours!

One point of info. When they say they can sequence an entire genome in just a few hours, I think that refers to instrument run-time. It ignores the much, much longer front-end time needed to prepare the samples before they ever go into the instrument, and also (I think) ignores the back-end time fo...
by justaman
Mon Apr 18, 2011 12:43 am UTC
Forum: Science
Topic: Fluorescene of quinine
Replies: 6
Views: 1304

Re: Fluorescene of quinine

matko5 wrote:I see what are you getting at, but it wasn't fluorescence, it was just a spike in infrared part of spectrum.

So why wasn't it fluorescence? NaCl doesn't absorb in that range IIRC, at least not in solution and won't produce an emission line there. It will be something to do with the quinine.
by justaman
Sat Apr 09, 2011 12:56 am UTC
Forum: News & Articles
Topic: Talks about megawatt class nuclear spacecraft
Replies: 13
Views: 3328

Re: Talks about megawatt class nuclear spacecraft

Several points here: 1) If you haven't turned the reactor on yet, the core is just U 235 and U 238, neither of which is particularly dangerous. You could sleep with such a core in your bed and be fine. The nasty isotopes are produced as products of fission. Well, I'm not sure about sleeping with it...
by justaman
Sat Apr 09, 2011 12:23 am UTC
Forum: Science
Topic: How come there are no beneficial diseases?
Replies: 69
Views: 12803

Re: How come there are no beneficial diseases?

Just found this article in The Scientist...

http://www.the-scientist.com/news/display/58109/

Pretty cool, and completely relevant to this topic - whitefly infected with Rickettsia breed faster and are more likely to survive to adulthood.
by justaman
Thu Apr 07, 2011 2:52 am UTC
Forum: News & Articles
Topic: Talks about megawatt class nuclear spacecraft
Replies: 13
Views: 3328

Re: Talks about megawatt class nuclear spacecraft

I wonder where the orbit will go... I'm not sure I would want what is essentially a nuclear bomb, (or at least a widespread source of quite nasty isotopes if it fails and re-enters) floating around above me.
by justaman
Sun Mar 20, 2011 1:47 am UTC
Forum: Books
Topic: "The house of desires" by Kipling?
Replies: 2
Views: 1504

Re: "The house of desires" by Kipling?

From a look on Spanish wikipedia and some judicious searching for quotes and of google translate, it seems that the story is called "The House of Wishes" in Spanish, but it is probably "Debits and Credits" in English... hope this is correct, some Spanish speaker, who has read a S...
by justaman
Thu Mar 03, 2011 7:41 pm UTC
Forum: Food
Topic: Raw-edible fruits/veggies (for the lazy healthy eater)
Replies: 10
Views: 2661

Re: Raw-edible fruits/veggies (for the lazy healthy eater)

Mango and pawpaw (papaya) are also tasty tropical fruit, but need a bit of preparation to remove seeds and skin, guava is excellent and tropical. Plums and pears are excellent and readily available most of the time. If you want a bit of variety with just what you have listed, try some different vari...
by justaman
Fri Feb 11, 2011 1:05 am UTC
Forum: Science
Topic: Safe disposal of sulphuric acid
Replies: 22
Views: 28517

Re: Safe disposal of sulphuric acid

I second taking it to a safe disposal source. However if you must dispose of it yourself, dilute it out carefully in lots and lots of water and remember:

"Do what you oughta, add the acid to the water"
by justaman
Fri Feb 11, 2011 1:02 am UTC
Forum: Science
Topic: Why do cold sores heal so perfectly?
Replies: 2
Views: 1345

Re: Why do cold sores heal so perfectly?

I think you will find that it has something to do with that burns etc. affect the tissue under the skin, whereas herpes can only infect the skin (well epithelium, but we won't go into that), so the damage is localised to a relatively thin layer. Many of these sorts of diseases do leave scars though,...
by justaman
Wed Feb 09, 2011 10:38 pm UTC
Forum: Science
Topic: Why are there so few great apes?
Replies: 18
Views: 2739

Re: Why are there so few great apes?

Perhaps there would be more if humans weren't so good at travelling, or the other apes were better at travelling, or if the apes weren't so large (compare with Elephant - only 3 species), or perhaps it is due to a "recent" evolution of the family... ...or it could just be one of those taxo...
by justaman
Mon Feb 07, 2011 8:41 pm UTC
Forum: News & Articles
Topic: (UK) Legislation forces archaeologists to rebury finds
Replies: 20
Views: 2520

Re: (UK) Legislation forces archaeologists to rebury finds

After all, they rebury bodies found on World War battle sites or in mass graves. The argument would ask why should any other remains be any different just because they're older? Because World War remains are recent enough that there are still people alive who remember the dead? Because we have a lo...
by justaman
Thu Feb 03, 2011 7:34 pm UTC
Forum: News & Articles
Topic: Aliens land in Jerusalem, lay claim to Dome of the Rock
Replies: 33
Views: 4330

Re: Aliens land in Jerusalem, lay claim to Dome of the Rock

One word: Collaboration... if you are good with photoshop (or similar) and digital editing, then it shouldn't be a problem to put objects in a slightly different angles and to"luckily" have someone else also filming in your shot... it stinks of a fake to me, without even watching the videos.
by justaman
Mon Jan 31, 2011 7:36 pm UTC
Forum: Books
Topic: British sci fi authors?
Replies: 22
Views: 3074

Re: British sci fi authors?

by justaman
Mon Jan 24, 2011 8:11 pm UTC
Forum: News & Articles
Topic: Kilogram losing weight...
Replies: 70
Views: 8734

Kilogram losing weight...

According to the ScienceDaily the international standard kilogram has lost about 50 micrograms since it was constructed in the 1880's, and there are moves afoot to re-define the standard in accordance with other international standard measures. Link: http://www.sciencedaily.com/releases/2008/02/0802...
by justaman
Fri Jan 21, 2011 10:59 pm UTC
Forum: Science
Topic: Scientific Literacy
Replies: 12
Views: 2818

Re: Scientific Literacy

Part of my first point was, I don't have a good collection of resources to study or practice my ability to read scientific articles(in particular physics), and I simply don't have a lot of experience reading scientific articles. So any advice on where to look for good articles, what to pay attentio...
by justaman
Thu Jan 20, 2011 7:53 pm UTC
Forum: Science
Topic: Scientific Literacy
Replies: 12
Views: 2818

Re: Scientific Literacy

What you perceive as an attack on the methodology is in reality extremely important and totally valid for the points being discussed. etc... I was probably being unclear, but I don't perceive that as an attack on methodology. I'm trying to draw a line between scientific debate between subject matte...
by justaman
Thu Jan 20, 2011 4:40 am UTC
Forum: Science
Topic: Scientific Literacy
Replies: 12
Views: 2818

Re: Scientific Literacy

I would argue that you are extremely unlikely to be able to be an expert in many fields at once... there is just too much literature and specialised knowledge required for *any* field of knowledge that you would like to discuss. This is why people tend to focus their careers on one or two small area...
by justaman
Tue Jan 18, 2011 7:38 pm UTC
Forum: General
Topic: Lucky Ten Thousand (TIL)
Replies: 13421
Views: 1749928

Re: Today I Learned

TIL people get sick when they eat penguin meat. The things you learn from Jack Hanna... I think I'm going to have to call BS on this one... the early Antarctic explorers ate it quite a lot and didn't get sick as far as I can tell. There are plenty of birds that also eat fish and are eaten on a regu...
by justaman
Thu Jan 13, 2011 9:09 pm UTC
Forum: General
Topic: I Shouldn't Have To Say This
Replies: 2609
Views: 392385

Re: I Shouldn't Have To Say This

When I worked as a surgeon, I used the 25% rule which states that you only change your gloves between patients if over 25% of the gloves are covered in blood. It's funny because back in the day they wouldn't even wash their hands between dissecting a corpse and performing surgery on a live person /...
by justaman
Wed Jan 05, 2011 7:50 pm UTC
Forum: General
Topic: What made you feel incredibly stupid?
Replies: 551
Views: 63146

Re: What made you feel incredibly stupid?

Missing Terry Pratchett's jokes: I didn't realise that knurd is "drunk" spelled backwards. I didn't realise that "Hersheba" was supposed to be pronounced "Hershey Bar" (I was pronouncing it her-SHE-bə). I guess there are probably others, but if so I haven't found out y...
by justaman
Wed Dec 22, 2010 7:37 pm UTC
Forum: Science
Topic: Some basic atmospheric science
Replies: 7
Views: 664

Re: Some basic atmospheric science

Ah yeah, hadn't thought about the origin of the low/high influencing how warm/cold it is. Being quite oceanic in climate, we tend to get weather systems moving from west to east, but some move up from the Antarctic - making them much colder and more likely to be cloudy during a high. You learn somet...
by justaman
Wed Dec 22, 2010 12:06 am UTC
Forum: Fictional Science
Topic: Buttered Cat Paradox
Replies: 110
Views: 29385

Re: Buttered Cat Paradox

Forget the buttered toast - how about two cats strapped back to back? Though that could be seen as the ultimate killing machine
by justaman
Tue Dec 21, 2010 8:17 pm UTC
Forum: Science
Topic: Is it possible to translate nerve signals?
Replies: 13
Views: 2321

Re: Is it possible to translate nerve signals?

I guess that "rejection" is from the lack of proprioception in the prosthetic?

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