rg255

general recent conversations

Discussion on answer by rg255: How ca…

Imported from a comment discussion on biology.stackexchange.co...

rg255

Jun 6, 2019 01:50

maybe reflect on your seeming anti-European complex... maybe reflect on the way you prejudice your opinions of people based on nationality, race or religion.

rg255

Jun 6, 2019 01:50

over 5000 people were killed by police in Brazil in 2017, that's more than in the UK, does that mean your country is one of the worst countries in the world? No. Maybe go and read the human rights watch report on Brazil...

rg255

Jun 6, 2019 01:50

Yes Brazil decriminalised homosexuality long before the UK, congratulations, but you reduce a country to a single fact - it is a ridiculous way to describe, compare and criticise entire nations of people...

rg255

Jun 6, 2019 01:49

I have never thought that I am smarter than someone just because I am European and they are not. There's also a mix of cultures in the UK, probably more so than Brazil. You are talking as if the UK is a monoculture where everyone has the same beliefs, it is not, just like Brazil and every other country in the world.

rg255

Jun 5, 2019 23:19

Neither Carl nor I need to apologise for the history of others. I don't know about Carl, but I was born long after the events. While I don't like the way things were and what happened, I am no more responsible for them than you.

rg255

Jun 5, 2019 23:03

@Rodrigo you are in Brazil according to your profile: a) Brazil is a Christian nation, b) Brazil currently has a far-right government - does this mean you are a far right Christian? No. Does the British empire of yesteryear and a law that was abolished over 50 years ago mean all Brits are gay-hating imperialists? No.Grow up.

griffinevo

Jun 5, 2019 20:38

European countries that decriminalized homosexuality after 1967 (when England and Wales decriminalized it): Bulgaria, East Germany, Austria, Finland, Norway, Spain, Scotland, Northern Ireland, Portugal, Ukraine, Estonia, Latvia, Belarus, Ireland, Lithuania, Russia, Serbia, Albania, Moldova, Romania, Macedonia, Bosnia & Herzegovina, and Cyprus. Also, it was 1967, most people that supported, made and enforced those laws are probably long dead, There's plenty more recent events you could use to make the brits look bad (trust me, I am a brit). On gay-rights, we have been relatively good..

griffinevo

Jun 5, 2019 20:38

this is way off-topic - if you wish to discuss this please move it to a private chat.

griffinevo

Jun 5, 2019 20:38

The problem with this though is people with more conservative views think that by looking for (and finding?) biological reasons we can "cure" (not my words) homosexuality so it is an incredibly dangerous subject to get involved.

Discussion on question by Matas Vaitk…

Imported from a comment discussion on biology.stackexchange.co...

Ell

Jun 6, 2017 11:17

Sugar evolved as an incentive to get things to eat fruit, which contain seeds, allowing seed dispersal.

The Velodrome

General discussion for bicycles.stackexchange.com

Ell

Apr 5, 2017 05:03

this might be the time I actually do it now, I've done bottom bracket replacement and reindexing the derailleurs myself, those are perhaps the more daunting bits (does anyone have a full job list needed for a groupset overhaul?)

Ell

Apr 5, 2017 05:02

I generally check a couple of times a year to see if I can persuade myself to upgrade my groupset myself, then I talk myself out of doing it...

Ell

Apr 5, 2017 05:02

@Criggie they've had them previously.

Ell

Apr 4, 2017 17:25

@Criggie seem cheap online and wiggle doesn't seem to even have shifters listed anymore

Ell

Apr 4, 2017 07:41

Is there an update to shimano 105 coming soon?

Ten fold

CrossValidated's general room for gossip, grumbles, and idle c...

Ell

Feb 8, 2017 12:54

thanks

Ell

Feb 8, 2017 12:27

@NickCox I thought of asking here as it is quite basic/broad, perhaps not suitable for the site - more looking for direction to resources where I can work out the answer and understand why it is the answer :)

Ell

Feb 8, 2017 08:56

does anyone have advice on material to read about testing for these, and how to go about model selection when I have an interaction of particular interest? I've only worked on random effects and explained variation previosuly

Ell

Feb 8, 2017 08:55

Hi - I'm using GLMMs (and mixed effects cox regressions in another case) to test for significant effects on a response variable. I have fixed effects of sex and some environmental variables, and I am interested in testing for significant sex by environment interactions (are responses to the environment sex-specific?) so the full models will be y~sex*factor1*factor2*factor3+(random1)+(random2)...

The Biosphere

General discussion for biology.stackexchange.com

rg255

Nov 8, 2016 13:07

(humans, fruit flies, + one other would be good)

rg255

Nov 8, 2016 12:56

e.g. "Mountain gorillas have 23000 genes, of which just 6 are on the Y chromosome" (these numbers are made up)

rg255

Nov 8, 2016 12:55

anyone know where I would find up to date reliable info on the number of identified genes in a species and how many of those are mapped to the minor chromosomes (Y or W linked)? Just need a handful of examples for a talk, to show that Y's contain few genes

rg255

Oct 31, 2016 21:43

That one you post is off in my opinion @MattDMo

rg255

Oct 31, 2016 21:42

I think they're off topic unless the user can demonstrate effort and clear goal (e.g. There is a q trying to trace the original notation of rB > C in Hamiltons Rule)

rg255

Oct 30, 2016 15:53

rg255

Oct 30, 2016 15:53

Q: Why does hair know when it needs to stop to grow

I'm still not quite sure if head hair grows endlessly, or if it stops at some point, but that's not the question. When the hair on my leg grows, it obviously doesn't grow endlessly, but it also stops at some point. I learnt that hair is dead matter, so why does the body know that my hair reached...

rg255

Oct 17, 2016 20:47

Close votes anyone??

rg255

Oct 17, 2016 20:47

Q: Probability of number of boys and girls being born on a single day

I am new to genetics, I have the following question at hand : If four babies are born on a single day, what are the chances that $A>$ Number of boys and girls will be equal. $B>$ All $4$ will be girls. $C>$ At least one baby will be a girl. $D>$ Which combination of boys...

genetics human-genetics population-genetics

rg255

Aug 23, 2016 07:13

D J Sims

187 6

evolution genetics biochemistry natural-selection neuroscience orf phylogenetics

rg255

Aug 20, 2016 08:06

"These stupid f@?#s should not be answering any questions f they can't answer precisely"

rg255

Aug 20, 2016 08:05

@arboviral someone posted an "answer" and it was deleted

rg255

Aug 19, 2016 14:49

Terdon is probably right, it's likely no great loss - but personally I think it was a bit excessive, he had no fair opportunity to change his behaviour - it's probably just put him off ever coming back rather than making think about correcting himself

rg255

Aug 19, 2016 09:23

wasn't suspension a bit harsh @WYSIWYG? the guy just commented on a few posts using answers, didn't he just needed to be told how the site works?biology.stackexchange.com/users/25816/…

rg255

Aug 17, 2016 19:06

Q: Is post-transcriptional regulation of gene expression an epigenetic process?

Is post-transcriptional regulation of gene expression (for example regulation by microRNAs) a type of epigenetic gene expression regulation? I think we can categorize it as epigenetic since the DNA sequence is not changed, but I have never come across that terming in any papers. Does someone ha...

molecular-biology terminology epigenetics

Discussion on question by JohnWDailey…

Imported from a comment discussion on biology.stackexchange.co...

rg255

Sep 25, 2016 14:08

@JohnWDailey I didn't just say it just does, it's is followed by an explanation as to why it just does

rg255

Sep 25, 2016 14:08

@Harrisweinstein I'm aware it's not great to just say it just does, which is why I explained why it just does

rg255

Sep 25, 2016 14:08

It's possible to speculate as to why certain species go extinct, but really the crux of your question is why does extinction happen at all. The answer is very simple, it just does - species fail to adapt to the prevailing conditions (changing habitat, changing predators, being shot, getting struck by a meteor).

rg255

Sep 25, 2016 14:08

@JohnWDailey I think it would be best that you calm down about this, you've had feedback from a number of experienced users that say this is very broad and off topic. No one here is trying to censor you or close questions for no reason, we all voluntarily give tine and effort to maintaining the sites standards and producing material. If the community gives feedback on your question it's safe to assume it's worth listening to (it's been given for a reason by people more familiar with the site than you) rather than arguing against it.

rg255

Sep 25, 2016 14:08

Species go extinct, there's nothing weird about it. Given enough time every single species on the planet now will go extinct.

Discussion between WYSIWYG and rg255

Imported from a comment discussion on biology.stackexchange.co...

rg255

Aug 17, 2016 19:21

Haha

rg255

Aug 17, 2016 19:17

...the community is stupid. ;P

rg255

Aug 17, 2016 19:06

@foldedchromatin and you :)

rg255

Aug 17, 2016 19:06

@wysiwyg you might be able to explain too :)

rg255

Aug 17, 2016 19:06

@mimat could you explain to me why miRNA is not considered epigenetics? It's not a familiar back story for me

rg255

Aug 17, 2016 19:06

Just to note on your pubmed search, methylation research has a considerable headstart on miRNA regulation research having been discovered decades earlier.

rg255

Aug 17, 2016 19:06

the genomic variation is not generated by sequence variation - the machinery to create that variation can be coded within the sequence, but the genomic variation is not created by the existence of that segment of sequence

rg255

Aug 17, 2016 19:06

if it creates variance in the genome, but does not come from variance in the sequence, it's epigenetic

rg255

Aug 17, 2016 19:06

e.g. expression of gene X may be regulated to be differently expressed in two cell types, each cell has the same sequence of DNA, but one part of that DNA gives instructions about regulation of gene X in specific cells - there are no differences in sequence between the cells, but there is a difference in expression, therefore it is epigenetic

rg255

Aug 17, 2016 19:06

The expression of a gene is modified post transcription, not because a nucleotide was changed elsewhere in the genome, but because that nucleotide exists

rg255

Aug 17, 2016 19:06

the regulation of a gene's expression is an epigenetic process, regardless of whether the ability to do such regulation comes from genetic information