ahmet

11 hours ago, CharonY said:

In many cases we are not entirely sure why.

ok ✔️

59 minutes ago, John Cuthber said:

In one case the two hydrogens (marked in red) are on the same side, in the other case they are on opposite sides.

 

 

presumably this means that atoms have 3D placement. also @joigus 's comment.

And what about the use of these compounds (i.e. metabolism), how does body differentiate whether such compounds are not useful/usable (i.e. harmful) or vice versa?

note: I know or can accept that not everything could be classified as harmful things and vice versa , there might also be something like not harmful and not efficacious. But, here in turkey , generally medical doctors (professors) tend to say that trans fats were harmful. I am trying to understand the case.(implication).

from my particular master program notes, I also know that unsaturated acids were a necessity and efficacious. simply ,how and explanation for the opposing case?

13 hours ago, joigus said:

AFAIK, the problem about trans fats --for humans in particular-- is their high melting point. Because they --as John said-- have double bonds in the middle of the chain, they allow for hydrogen atoms to be either both on the same side (cis) or on opposite sides (trans), so that trans give rise to molecules that tend not to coil or bend so much. This results in straight chains that function pretty much as saturated fats when it comes to melting points.

 

Molecules that tend to coil act more "pointlike" than molecules that remain "straightened up", which is what qualitatively explains the difference in melting points. So they tend to clog more easily in your blood.

I'm not aware of metabolism having to do with other negative effects, but it could be.

from this comment ,I understand that trans fats' melting point is high. they tend to clog the veins. So ,problems are occuring in the mechanism. 

is this the consistence really?

and does this show also that , they were not needed in fact?

another question:

I think we do not know or previously define how the compounds act,right?

for instance ,here we know that unsaturated two forms have same formula, but because of their geometrical placement they are not same. 

one of them has tendency to be harmful while another one is efficacious and needed. 

but, in fact, we can only realise this after observation and experiments (I know that this detail is already known about TFAs)

otherwise, it cannot be said whether a compound was previously harmful or efficacious (before it created and used (i.e. experiments and observations)

all in all,I am again not sure really. bacause some scientific criteria might illuminate the way. 

11 hours ago, John Cuthber said:

Do you understand the difference between cis and trans?

https://en.wikipedia.org/wiki/Cis–trans_isomerism

Oleic acid is the cis isomer and elaidic  acid is the trans isomer

As far as I remember (from high school) it is about geometry.

but...do not well what happens with these or do not know how these metabolised.

I shall check the link(s).

11 hours ago, joigus said:

 

 

 

actually ,I remember this from high school but,

what is the difference between these exactly? (seems same) 

35 minutes ago, John Cuthber said:

If you are talking about saturated fats then you are not talking about trans fatty acids.

ah yes. trans fat is a form of unsaturated fat. thanks. 

And could you show me or explain: what is the difference between elaidic acid and oleic acid?

a notation: I saw one turkish professor speaking on tv channel , she was blaming trans fats and advising to avoid from them. (But why ,because charonY's reply indicates that body could break down trans fats.)

hi, yes trans fats. 

so, as we can say that metabolism consists of catabolism and anabolism , can we say that your this answer indicates that body could either produce (naturally) trans fats or break down them?

so this means ,YES human body can break down trans fats(?)

with a note before starting: I could not differentiate it well so this thread might either be considered in medical sciences or biology forum. sorry for the case.

hi,

I wonder whether trans lipids/oils usable in human body?

among the contexts,I know that not all of saturated lipids were trans , in trans lipids , hydrogen atoms are inversed at bond points.

and not all of saturated lipids / oils were useless. 

but do not really know anything about the certainty of information appearing in the thread. 

equivalently, can we say that once we obtain trans oils in known forms , then is that impossible to move away these lipids from the body up to death?

2 hours ago, iNow said:

Since you’re using currency in specific denominations to post your question, then no. There’s no such thing as a “smaller penny.” You can’t cut a penny in half and hand it to,the clerk at the register when leaving the store, even though we can account for fractional pennies in spreadsheets 

ahahaha    

something came to my ming like : to divide a penny from a point over its boundary along its diameter  (maybe via hammer).   

9 minutes ago, studiot said:

Mmm  disappointing response to my question  -- you might have learned something.

I wasn't aware that Bolzano wrote any engineering textbook - This thread is supposedly about engineering texts.

of course.but you can create something from theoretic parts. I mean that you could create your own application.

anyway, yes. this thread is about engineering texts. 

https://www.youtube.com/watch?v=Vwn16r0S0_k

On 12/30/2020 at 6:05 PM, studiot said:

Thanks for the reply, but why do you say this ?

Here are the front and back covers of a book from 1957.

well, I say that ,because perspective is really effective. to me, if you have that you can achieve very bright things. 

but eventually we shall be able to say that these are different issues.

--->> perspective

--->> working hard. 

one of them conains talent while another does not have to.

,and a response to your another implication: I am almost sure that we would be able to create something new via rather general (even basic) theorems.

for instance, bernhard bolzano had lived between 1781-1848. but that does not mean that his thorems would not cause new results in the far future (e.g. 2200)  

I do not really believe that any book's importance/value/prominence would be measurable via its cover page (i.e. appearance) 

nnnnever !   

On 12/23/2020 at 12:37 AM, studiot said:

Well I'm sorry I don't have a single favourite book.
 

ahahahaha ha aha      ,congrats for your effort with such studies.

but,

On 12/23/2020 at 12:37 AM, studiot said:

Also some engineering books go out of date rather quickly these days.

I do not think so. it all depends on your perspective to me. 

10 hours ago, zapatos said:

No, it wasn't that one particular song was monotone, but that one song sounded similar to the next song. It reminds me of electronic dance music, where all the music has a similar beat, percussion, and electronic sounds. 

mmm, yes some of the songs I listen might/may contain ,I think this one is one of such musics but again natalie horler's voice is good,I listened her many times in the far past.

the background of the music that this artist does may contain electronic dance music

11 minutes ago, zapatos said:

but for some reason they really do start to sound the same to me.

mm does this mean that ...they were (particularly or " a bit" ) monotone. I shall again respect. Here in turkey we have very well fixed sentence (like in the manner of idioms but a sentence that have predicate)  "pleasures and colours are not discussible" . So, whatever you say, I know that I (should & would) respect that in this regard.-but normally ,

I enjoy/prefer the musics which enables me to obtain/create/produce or have inspiron and sometimes intuition,in general. 

6 minutes ago, zapatos said:

I watch a number of them but I've come to be pretty selective. A lot of what Moontanman posts Ill watch. And most anything that is Blues. This Arabic Pop and Rap all sounds the same to me and is not my style.

a ha ah ah 

 I respect that , really I already almost totally believe the power of "freedom"

so, you and everyone is perfectly free about what to listen.

40 minutes ago, iNow said:

Just curious. Does ANYONE watch these countless videos that kept getting posted?

hahaha haha   

really I have also though like that many times, but cannot stop myself sharing the musics I like. 

oh my gosh ! 

hahahah hahah ha ha , that girl really has not discovered how the love was! hahahah haha 

anyway, music fits you tamiga & bad.    

artistica , congratulations anas otman.

nay nay nay , nay nay nay   

5 hours ago, joigus said:

Edit: Oh, and another thing. You're getting excellent advice here. Don't pay heed to "Daft Science" or "CrackpoGenius" or similars who might tell you how much more intelligent than others you are. They're distracting you and you've gone astray by their compliments before. I've seen it happen. That's another crack in Mt. Everest. Compliments are very distracting. Reliable information is gold.

I am a teacher in one of the branch of science. So,I think I can observe something from the top of the portrait or a map and normally can make some distinction between the speakers.

But that thing whatever we say  should NOT of course pass the treshold of the reality. 

I clearly remember what I said, feel free please to speak more clearly. 

I am again sure, this OP of topic is not unintelligent. What is more, he can understand and make distinction between what intented to be said and what sounded  ftom the text.

but unfortunately this user does not have sufficient (as swansont says "fundamental") contexts of maths. Thus everything is problem for him in this regard.

anyway, perhaps some people do not want to accept the reality or cannot see it well. 

a recommendation: as independent researcher and maths teacher ,here I could not really judge what the OP would like to learn or ask in the work of maths.

so, I recommend the topic to be closed.

oh,I am not sorry.

because I have not sufficient time to worry for anything

On 12/19/2020 at 11:30 PM, molbol2000 said:

So we can answer: Can Science Make us live shorter?

instead  this sentence, you should use this sentence, I think.

"generally making somethings worse is easier than making that things better"

3 hours ago, joigus said:

https://www.goodreads.com/quotes/582016-knowledge-exists-in-two-forms---lifeless-stored-in-books

 

lol , this is not valid or inconvenient for mathworks.

meanhile, I can remind that that man was not a mathematician as I know,he was physicist.

And here, I do not encourage anyone to work for pure maths. I only know the way. 

I do not know really such videos. Maybe causing by the novelty of the area,because springer's one journal (taht almost newly founded) publishes basic contexts too.

but.. I am sure that you would be able to find many written materials on the issue/topic and do not know why you do not try that.

55 minutes ago, Janus said:

Washing your hands is more about physically removing the virus from their surface than it is about killing the virus.

so, does this mean that in fact, we did not need to use soap? 

interesting.

if not; how do we remove viruses from the surface of our hands?

addition: I was almost forgetting bacteria.sorry. but the question still stands.

1 hour ago, studiot said:

We are (all?) washing our hands etc more and doing so with chemicals we hope will degrade coronavirus.

may I ask a question: I remember you had said that we would have a probability to face a new diseaase (i.e. pandemic) in a thread.

now turkish media announces a mutated version of covid19?

if this case satisfies your (or proves that you were right in your prediction), how did you reach that information?