sangui

Hi,

I was looking for plant biology podcast, and I discovered than there was really few Podcast on plant science (specially with a molecular point of view).

1) Do you have any idea why plant science seems to be so forgotten ?

2) Do you think it can be interesting to create a podcast about it (on photosynthesis, plant immunty...)

3) Why should be important for something like that ?

I hope this topic is in the right place.

Thanks

48 minutes ago, Phi for All said:

If we could remove the extremes at either end, our current system could lead to less of a focus on acquiring more wealth than is necessary. If we want to curb extreme greed and poverty, regulation is our best friend. I know this because of how much the obscenely wealthy hate it, and how much the devastatingly poor need it.

The question is how to regulate it ?

9 minutes ago, Othmane Dahi said:

I see what you want to do but I think you will need so much more rules 

I'm completely agree with you but it's not easy to do.

To construct those rules more efficiently we would need to do it on an exemple (a country or at least a culture).

Just now, Othmane Dahi said:

I don't know what Marx exactly said. But I can say in this world " each one has to do a mission that benefits others, according to his ability and his passion, in return he recieves what he needs to live and to do his mission "

I don't see how this is incompatible with money (I see why it's impossible with our system, but we could build an alternative monetary system).

Money is the simplest way to trade (and trade is important, because it's the simplest way to connect people). So maybe just build some new rules ?

-Every body will receive a minimum salary (without looking for his employement, sex, age ...).

-Nobody can earn more than 10 times this salary (10  is just an exemple).

-An organisation can control some prices (for the most important supplies)  to avoid dangerous inflation.

It may be an alternative between our world and a world without money (remember : money is a tool, a tool can't be evil, it just may  be evily used).

I must be wrong somewhere because I found this.

My B=D/C=0.13257072

ANd in my correction : Bartlett’s K-squared =0.305

bertlett.xlsx

Thanks

Is it possible than D is negative ?

I don't understand why do we use the sum for C, we don't have anything to sum ? ∑i=1,2,3

Stupid question but : what is frac ?

54 minutes ago, taeto said:

But first, what is the meaning of your first table? We see five columns T1 to T5 (where T stands for "Temperature_") and eight rows with an entry for every column. Do you expect that you have to test whether all the 40 entries in the rows and columns follow the same normal distribution? Or just that the entries in the same column follow a normal distribution, possibly not the same for all columns? Or the entries in the same row?

We must see if all entries follow the same normal distribution.

And it's the same for the second table.

I don't think those table are related (but I'm not sure, I just have the exercice and the value of Shapiro for the first and Bartlett for the second).

I'm sorry to don't be more precise but, I haven't a lot of information (I need to understand this test for the following of my study, but my teacher choose to don't work on it).

Thank you for your help.

14 minutes ago, taeto said:

Yes, it seems to be what the assignment is about. But sangui said that he cannot do the math. And the math differs a lot. Bartlett is a standard χ2 test, whereas the Shapiro-Wilk testor W needs looking up in a table. That makes the mechanics a little different. The value of W is actually not quite easy to compute, so it would be a place to start, if necessary. 

It's my fault I haven't been clear.

I'm suppose to learn how to use those test, and my teacher doesn't gave me more information. So, I don't really know the difference.

5 minutes ago, Dagl1 said:

Aren't they related in the sense that you need these assumptions for follow up tests (ANOVA's for instance)?

Actually, it's exactly why I need to understand those test ^^

For example I have to look if those sample follow a normal distribution.

I'm suppose to use shapiro-wilk .

On this one I need to find if the variance are equal.

I think I must use Bartlett.

Hi,

I have to do some statistic, and I don't understand how works the shapiro-wilk test or the barltett test.

I think I understand why do we use it (to see if an sample follow a normal distribution for shapiro and see if our vaiance are equal for Bartlett).

But I am completely unable to do the math, can somebody help me ?

Thanks

My question may look weird but : Doesn't Italy have a really different death ratio than China ?

And if it's true, doesn't it mean than China may have cover some death ? 

6 hours ago, StringJunky said:

That's a working hypothesis:

 

Thanks for your reply ^^. Your link answer my questions.

Yes, but they show than we have free mitochondria are present even in physiological state.

So it must be usefull in another way, no ?

18 minutes ago, StringJunky said:

What is it about a young person's physiology that makes them less susceptible?

We don't have the same immune system (the proportion of Ig are different, cytokine ....)
 

I found a paper about H.pylori (it's a bacteria but ... it can be extrapolated for virus). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4606101/pdf/JIR2015-315957.pdf

15 minutes ago, druS said:

Presuming that the advice here in Australia is reasonably agreed, we are told that children are relatively minor risk of catching or transmitting SARS-Co2. And of course when they get it are minor risk of severe symptoms.

I'm not sure they are minor risk to catching it (and so to transmitting it), but clearly they have less chance to have severe symptom.

(but  this article may explain a bit of the low transmission rate for the children: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7102573/pdf/main.pdf , or those one explain than children just have less severe symptom https://onlinelibrary.wiley.com/doi/full/10.1111/apa.15271 or https://onlinelibrary.wiley.com/doi/full/10.1111/apa.15270)

However the problem of allowing infection of the youngest people (if we forget politic or ethic) is than youngest people still be a  good vector to transmit to the more fragil people.

I found an article about free mitochondria in the blood, and it's puzzle me.

The link of the article : https://faseb.onlinelibrary.wiley.com/doi/epdf/10.1096/fj.201901917RR

I found the article rather good with a good explanation of the MATERIALS AND METHODS (even if I don't understand everything).

But I have some lack of understanding :

                   - Does it the first time than we found free mitochondria in animal organism ?

                   - Why do we need the ability to produce ATP outside of the cells ?

                   - It may be a processus to modulate the immune system (I read than mitochondria can act like DAMPs), but how do we avoid a reaction of inflammation a basal level ?

Thanks for reading

I like this idea: it's close to the phage therapy (wich is one of the funniest ways to fight an infection ever ^^).

However, I 'm pretty sure it would not work.
1 One of the biggest antibiotic resistance problems is the ability to be delivered by a plasmid. Our sensitive strain would have those plasmid and become resistant really soon. So we would get back in the original solution.

2 Place like hospitals NEED to be clean up often. If we had some strain (even really sensitive) it would kill a lot of people (Antibiotic doesn't cure every desease : resistance or not).

3 Instability: bacteria mutate, really often and it becomes a kind of a time bomb (some day it will be dangerous, and if you have more bacteria this day will come sooner.).

1 hour ago, zapatos said:

I suspect that 'better' falls under the overall heading of 'sustainable'.

Yes, I meant the more sustainable.

Wich diet has the lowest impact on our planet while being healthy.

I don't know where this subject should go so I put it in this section.

Hi,

I am looking for an alimentation more respectufull of the environnenment. So I have began to ask myself : wich diet is the better for our environment ?

Do you have any thought on it ?

5 minutes ago, Robert Wilson said:

It's just a small insect on the camera lens, but everyone are too blind to see this trivial solution.

I'm not sure but an insect could really stay on a jet plane during the flight  ? The speed isn't too fast and the temperature isn't too low ?

I'm one of the members of the ''next generation''. However, I fell exactly the opposite ^^.


We begin to look directly in the DNA. We have the CRISP CAS 9 tool.

We are able to see black holes (Isn't it just marvellous ?????)

Last month I have program an algorithm of Deep learning, able to analyse the microscopic picture. It helps us to understand how our DNA is expressed.


What I mean is pretty simple.Last month I have program an algorithm of Deep learning, able to analyse the microscopic picture. We do make a lot of discovered and science is progressing in every level (even ethic in my point of view).

If you want to contribute, you can. Study and soon you will be full of question. Then work on them and you will help science to progress.

Sorry for my english.

1 minute ago, CharonY said:

You mean running different statistical tests on the same data set to find one that indicates statistical significance ?

Yes it's what I meant.

Hi,

I have always been interest by quantic physic even if I don't have the mathematic or physic knowledge allowing me to really understand it.

So a question came into my mind: do we find any impact of the physic quantic theory on the relation ligand receptor? Does some people research on bio-quantic stuff?

I have the same question about protein reploiement and quantic effect.

Thank you if you can help me, and I hope I'm being clear.