Biological Definition and 142 Threads

I'm wondering if there's a clear definition of the phrase "too slow to be biologically significant"? (in this case the reaction of the auto-oxidation of $$NO$$ to form $$NO_2$$) Does this simply mean the reaction occurs with a very low probability? Presumably the reaction does still occur - I'm...

Curious if there's a good keyword or named discipline for these kinds of questions: To what extent does biology determine culture? For example, if you took two cultures, one raised by the sea and another in the mountains, then rewound and switched places, how much would their culture simply...

I've seen this before, but it boggles my mind when I try to put it in the context of a boxer practicing his jabs. Just how fast are these individual reactions occurring? (Did I get he right GIF? It's supposed to be the one of muscles contracting.)

Sad if true https://www.science.org/content/article/potential-fabrication-research-images-threatens-key-theory-alzheimers-disease

Hello everyone, So, I was wondering, the Biot-savart show us a magnetic field created by a constant electric current. Initially I thought that an example would be biological systems with a nervous system that works on the basis of electrical discharges, but I don't think it's a valid example...

"Biological Information" is a common concept in some parts of biology. It most often (in my experience) is used to refer to the sequence information in nucleic acids (nucleotide sequences in RNA and DNA) and in proteins (amino acid sequences in proteins). This is most apparent in the flow of...

Summary:: Fugaku's supercomputer is 442 PetaFlops fast, what can we simulate with it? So the most powerful supercomputer in these days is 0.4 exaflops fast. I assume we can simulate precisely the interaction between simple atoms, small molecules but... What is the limit? Could we simulate a...

Are there areas of studies which could be characterized as an interface of biological physics and quantum physics? Does such an interface even exist?

What the group thoughts are in relation to an experiment in which 520 nm monochromatic light will strike a biological sample, which it is not flat (most like resembling an arc) and can photo-bleach over time. Would irradiance (mW/cm2) or dose (mJ/cm2) be more appropriate to carry on studies on...

Hello, so to give some background context to my question, I was playing around with thought puzzles in my head about the many-worlds interpretation of quantum and the notion that all possible variants would come about. I ended up arriving at a place where I wondered if it were possible for the...

Paper https://www.nature.com/articles/s41550-020-1174-4

Hello all: I was wondering are we have a name for protein structure , or we consider them amorphous? Any one did a phono propagation in protein molecules ? Protein folding and phonons any relationship? When peptides came together and start to form the protein dose phonons/photon propagation...

Ok, so I somewhat randomly saw a recent video made by VICE about people with severe disabilities being treated with the help of modern bio-technology, the part at the second half of the video made me watch in awe as I found it hard to understand. Here is the video The questions I would have...

Hi. My understanding was that a scientific theory and law complement each other. There is a guy at work that insists that a theory with more evidence becomes a law. Recently he cited an article that said that a theory that has been repeatedly verified and appears to have a wide applicability in...

Humans die because it's part of our makeup. From birth till death our expiration date is waiting for us. Scifi aliens need not be mortal, even though they are more often than not a proxy for specific human attitudes and behaviors. So here is the question, what effect does biological...

I just wanted to ask something that's being bugging me for quite a while now, if you don't mind. In standard testing, Biological Materials often are found to have impressive strength characteristics, for example, both Type I Collagen, the supporting protein of muscle (And I think Skin as well)...

Good day! I need your advice in computer graphics :smile: I have been studying and working in Autodesk 3ds Max for years, mainly for my pleasure. Now I want/need to study some new 3D program in CG, however not for just fun but for science. Particularly I need such program that enables showing...

I am an incoming graduate student in Theoretical Physics at Universiteit Utrecht, and I struggle to make a choice for one of my mathematical electives. I hope someone can help me out. My main interests lie in the fields of Statistical Physics, phase transitions and collective and critical...

Why when we supply energy for biological body then the body can keep entropy not increase?Because we know that by definition temperature equals partial derivative of internal energy to entropy.So that when temperature being constant,if internal energy increase(supplying energy for body) then...

Here is an interesting Science mag news article about David Goodsell, who makes popular, accurate, and informative illustrations of biological subjects at the level of cellular components to molecules and atoms (when possible). To me, this is one of the most interesting levels of analysis in...

I am a undergraduate in a non clinical psychology with a special focus in evolutionary psychology, human nature, and personality. I will keep it short and sweet: - What restrictions are on me as a biological psychologist compared to that of a biologist in terms of conducting research? - Can I...

I didn't know whether to put this in Biology and Medical or in Programing and Computer Science so I am putting it in General Discussion. This article from Wired describes U. of Washington group that has produced a piece of DNA that when sequenced in a particular sequencing machine can produce a...

I think this kind of science should be stopped, what do you think? https://www.sciencedaily.com/releases/2018/10/181009102511.htm

The brown marmorated stinkbug (Halyomorpha halys) is an introduced plant pest from Asia that has invaded parts of the US (first seen in 1998), Europe, and perhaps other places. Since it was introduced without its natural predators and can feed off a variety of crops plants it has done quite...

The more I learn about biology and human nature, the less sense contemplated and executed suicide makes. Especially non religous. What accounts for suicides concidering we are supposed to be hard-wired to survive at all costs, and are equipped with instincts to accommodate that goal?

Can a percentage of total and immediate (hypothetical sub 1 second) T-Cell loss cause death to a typical adult? What percentage of hypothetical immediate loss would yield rapid death under 1 minute? What would the most likely cause of death be? What size is a typical T-Cell in µM^3 ? Is...

Homework Statement Produce an detailed understandsing of the anatomy and function of the lymphatic system, using correct scientific terminology to explain the rationale for use of corrective treatment for lymphedema. Homework Equations N/A The Attempt at a Solution Lymphatic edema is the...

Homework Statement How does Hodgkin's lymphoma effect the "normal" function of the lymphatic system? Homework Equations N/A The Attempt at a Solution After research I have found out that HL casues lymph nodes to become inflames. I have concluded HL causes lymph fluid to get blocked at lymph...

Interests are many. Bioinformatics, self organizing systems, sociology/history, military technology, communications, echo-location, echo-linguistic’s, and other areas.

So I was messing with the induction from power lines and fluorescent bulbs, and I noticed all the plants under the power lines were dead but plants around it were fine. Do EMF's have something to do with this?

I just want to know Your opinions

Looking for software for drawing biological processes and pathways between cells or even tissues. I have engineering/programming/control systems experience so I am looking for something similar in biology. The ability to define different things, different colors or shapes would be good, I...

I am finishing my Biomedical Engineering BS next semester but I want to learn more about Molecular biology so I've decided to take a year or so in Molecular biology BS and get a better feel for it. Then going into either BioEngineering or Biotech. Which is better for job and salary outlook? I...

Really interesting. Using bio molecules to perform computing. http://www.computerworld.com/article/3040707/computer-hardware/biological-supercomputer-uses-the-juice-of-life.html

Homework Statement In recent years, there have been several significant outbreaks and recalls associated with Salmonella in peanut butter. One company has designed a thermal pasteurization system to reduce pathogen risk in peanut butter, in which the peanut butter is pumped through a heating...

I'm not sure I'm following the whole intro chapter 1C "Phase Singularities of Maps". Is he saying that the existence of an oscillator somehow requires a singularity?

I was reading the wikipedia article on Lithium and noticed that it says: Trace amounts of lithium are present in all organisms. The element serves no apparent vital biological function, since animals and plants survive in good health without it, though non-vital functions have not been ruled...

This happened to me a few years ago, probably starting in 2008. I'd be sitting at me computer or watching TV and suddenly something would shift my attention to a clock somewhere, either on the TV, on my computer, on my phone, or maybe even on some sort of clock related monitor in some public...

Hi, I have been reading this fascinating paper here: http://www.nature.com/nmat/journal/vaop/ncurrent/full/nmat4484.html I'm struggling with some of the biophysics, and it would be great to get a discussion going. In particular, I was struggling with the statements where it says "The two...

Hi everyone, I have a basic question on statistics. Suppose you have a biological assay to test a given property of some molecules. At some point in time you have tested N different molecules M1, M2, ..., Mi, ..., MN, and for each you have repeated the test a number of times Ri. The results are...

What is the difference between biological sciences and biomedical sciences? In biological sciences, is the main focus ecosystems, evolution etc or is the main focus human biology or zoology? Thanks!

With all a biological organism has to do in the way of allocating limited resources among lots of different parts that need them in a timely manner, I'm wondering if there are biological chemicals that are closely analogous to money. I've heard ATP referred to as the common currency of...

While I have to admit the question in its summarized version seems to be not very well defined (and naive, of an easy answer), so that I desire to at least make it sound less stupid. Or at least I hope. After reading all of this it might sound even worse though (no promises).I like reading about...

I'm tying to find any clue about the timescale of the biological pump. That the carbon is recycled to the surface ca. 1,000 years is clear but the timescale of the biological pump seems hard to find. There is an report I saw when I was surfing the internet saying that the timescale can range...

Do we understand how the physical laws of the universe created biology? How can we explain cell division, consciousness, evolution, as a product of matter operating in a universe governed by laws?

In my exercise physiology class we are discussing the amazing work that the human heart performs over a lifetime, even over a single day. My textbook says that the fluid output of the heart exceeds that of a household faucet turned wide open (Katch, McArdle, Katch). With the invention of the 3-D...

Hi everyone, I have a question about the error on certain biological results. Apologies for the long explanation, but it's not a trivial thing (at least, it isn't for me). This is what happens: 1. biologists take N solutions of a molecule at different concentrations (say from 10-10 to 10-5...

I majored in neuroscience and applied math in college and want to do computational neuroscience research long term. Being at the crossroads of biology and physical sciences, I think a lot about how the two "worlds" view each other. The lab I'm currently in has some people directly from the...

I'd like to know some specifics about the biological effects of X-rays on living tissue. I am aware that X-rays, along with other forms of ionizing radiation, have stochastic effects of DNA but what is the data regarding the non-stochastic effects of intense X-rays? In particular, can sufficient...

Anyone exposed to academic rigor would find the use of the term "biological evolution" to be rather vague. There is something about Darwin and common descent and then it starts to get somewhat vague. Is there a definitive definition of "biological evolution"? I offer this in the spirit...