877 reputation
614
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location Germany
age 30
visits member for 2 years, 3 months
seen 19 hours ago

2d
awarded  Notable Question
Jan
17
comment benefits of organic food
(Cont.) Those who know what they are talking about will tell you what the supposed effects are, and in what amount, e.g. "excessive salt puts you at risk of hypertonia"
Jan
17
comment benefits of organic food
Hello T Abraham, and welcome to biology stackexchange! I fully understand why you want more information when you are bombarded from everywhere with admonishments what to eat. But the problem is that such a question is unanswerable. "Good for you" it's an overgeneralization which cannot be proven or disprove by science, because it cannot be defined in the first place. So, while I'm very sorry to do so to a first time user, I have voted to close your question. The only advice I can give you: disregard sources which tell you that X is "good/bad for you", or "healthy/unhealthy".
Jan
17
comment Is it possible that a set of functionally related proteins in a pathway fulfill different functions?
Hello Costa, and welcome! I don't understand your question. What is supposed to connect to what, what do you mean by property? It's a very broad tem. And maybe you man exhibit, not execute. I know it's not easy if English is not your first language, but people can't answer if they don't know what the question is. You can edit it to add detail, else it's possible that it will be temporarily closed until you explain more.
Jan
16
revised What does x in “Miscanthus × giganteus” name stand for?
removed "spices" related info, added a bit more detail.
Jan
16
comment What does x in “Miscanthus × giganteus” name stand for?
@senderle Oh, thanks for catching it. I realized that there must be some misunderstanding after Klara's second comment, but I just didn't make the association with species
Jan
16
comment What does x in “Miscanthus × giganteus” name stand for?
Lemongras is also a tough gras, but still used as a spice, sometimes even eaten, cooking.stackexchange.com/questions/53671/…. I don't know why you'd look at spices when you choose biofuel sources though.
Jan
16
answered What does x in “Miscanthus × giganteus” name stand for?
Jan
10
comment Why does hair grow after trimming but remains at a constant length after a while?
Interesting. I looked at the source, and it seemed to imply that hair length is determined only by the length of time in which the hair has grown, which would assume constant growth speed. This would be a very interesting fact, I'd intuitively assume that hair (within the same animal) grows with different speed depending on body part and the current state of the body chemistry. Do you know if such difference exists, or is it a constant speed growth process? I don't remember an explicit statement from the paper, it was just an impression I got, maybe I overlooked something.
Jan
10
comment What's the worst that can happen from too much sleep deprivation? Can you die?
@Superbest the rats die from hypothermia. Sleep deprivation increases the organism's need for energy. At first, sleep deprived animals overeat, but at some time, they cannot compensate and die. After the metabolism has reached the point of no return, you can even let the rats sleep and they will die soon nevertheless. See the popular science book Sleep thieves for a nice summary of the studies.
Jan
10
accepted Why can white hairs get dark again?
Jan
10
revised How can we calculate the minimum sustainable number of the panda population?
The old title sounded indeed a bit off and now provoked a ranty non-answer.
Jan
10
suggested approved edit on How can we calculate the minimum sustainable number of the panda population?
Jan
9
answered Chemical reactions at the synapse
Jan
7
comment How much does sleeping correlate with daily activity?
@tel you seem to assume that 1) physical movement uses up lots of energy, and 2) sleep is there for muscle regeneration. Both assumptions are not very true. Your body heat production, viscera function and brain function use up by far more energy, and it is not known what sleep is for, but it's more likely to be about brain self-organisation without the meddiling of a wanton, energetically expensive consciousness, than for muscle relaxation.
Jan
5
comment How many mosquitoes would it take to “drain” enough blood to put a person into shock?
@user137 Chris's approach sounds right - estimating the amount of blood based on body weight. Maybe you encountered the 8 quarts figure in a text on obese patients. I already thought after leaving the comment "wait, there's no way everybody has the same amount of blood".
Jan
5
comment Which fruit compounds affect the speed of fructose absorption?
@Resonating as far as I remember digestion, this is a reasonable question. The speed of sugar absorption depends on the chyme contents, not just the percentage of sugar present in them. This is why the same food in different preparations has a different GI index, and although I don't remember if it applies to fructose as well, it's not too far fetched to ask if it applies, and what's the mechanism behind it. It doesn't matter what's the reason for the plant to contain whatever it contains. But I agree that the question as written is hard to understand, and possibly way too broad.
Jan
5
comment Book recommendations for evolutionary models
I actually wouldn't have recommended Dawkins as a first book on evolution. He has some interesting ideas, but he is also has very radical views away from what the mainstream science agrees on. You cannot undo it now, of course, but for future reference for other people who see this question, it's probably better to start with a more basic and conservative text. And if you later read Dawkins or a similar author, you then have the basis to recognize what part of his arguments is consistent with the widely recognized knowledge, and what part makes large philosophical leaps.
Jan
5
comment How many mosquitoes would it take to “drain” enough blood to put a person into shock?
@user137 I don't know about your mosquito numbers, but 8l of blood sounds very unusual. I've always thought that the average is 4-5. Else, good starting point for the calculation.
Jan
4
comment How many cells does the smallest animal have?
@fileunderwater the way I learned it, Protozoa were always considered separate from animals taxonomically, even though some of them were considered "animal like" and others "plant like" on an informal level.