Biology Definition and 572 Threads

I am having trouble understanding this paper if anyone could explain it in a better way, I'd appreciate it. https://www.nature.com/articles/nature05678

Will finish B.S. in molecular biology in May. Have found asking vague questions about where to go/apply to next are pretty unhelpful. I believe that going through indexes of interesting research is the closest I can get to finding a place to advance myself and be happy in. here is an example...

Are you like me and think biology can be messy and difficult? Well, you're right. :nb) Here is a very cool, very large interactive map of metabolic pathways, which a friend of mine sent to me today: http://metabolic-pathway.com/fullMap.html And if you want to be extremely careful with your...

Recently I read an article that relates fish larval survival to Reynolds number. It is a new and very interesting concept to me. After some researching, the definition "ratio of inertial forces to viscous forces" still confuses me. As I understand it, both are resistant while the former to...

I am 25 and I have graduated from Oxford university in Chemical Biology but strongly believe that I want to do Physics all my future life. I did my Masters by research on the department of Chemistry and I was co-supervised by Professor in Organic Chemistry and Professor in Physical Chemistry. So...

Are there any ways particle physics can impact biology? Specifically, being able to use methods from theoretical physics to study biological systems (possible physiology related).

Here's an excerpt from a cancer biologyhttps://www.antiox.org/article/78: Is CTC50 and IC50 the same, in cancer biology. According to this book, CTC50 (Common toxicity criteria 50) is the concentration of drug which can kill 50% of total cells/ inhibit 50% of the cell growth. Here's a link to...

Hello. I am new to this forum, so be brutal. Ive heard that C12H16N2 is within all living lifeforms, without being able to confirm this on www. Is this true? It can, for me, make sense since these are the most abundant atoms in our atmosphere, in space and under Earths crust. Where will I be...

Hello everyone, I am studying at the moment electrical stimulation of nerve fibers. I encountered this image which compares cathodal and anodal stimulation but illustrating the anodal block ocurring with cathode current. But I don't really get the point of the image, could someone clarify it...

I like science, which is obvious if I'm on this forum. I mostly like biology but I dabble a little in everything. I like answering questions people have in introductory biology and chemistry. For my own interests, I mostly read about cellular ion channels, but I also read about integral membrane...

Hello, I'm not familiar with basic statistics exercises using pie chart and I'd like to know how i can solve this one: in a faculty science of 3000 students, some are in biology, some in physics and some in chemistry as shown on the pie chart. I can for sure tell that 1500 students are in...

My brother has been in and out of rehabs for years, and lately I've been researching addiction and trying to understand the science behind it. A lot of sites that I've found say that addiction is genetic, but the info is extremely generalized and surface level. I haven't found any specific...

https://www.physicsforums.com/insights/dont-fear-https://www.physicsforums.com/insights/dont-fear-crispr-new-gene-editing-technologies-wont-lead-designer-babies/-new-gene-editing-technologies-wont-lead-designer-babies/ is a newly developed tool that allows researchers to easily make changes to...

Published this week in the journal Science, researchers report that they have devised a eight letter alphabet for DNA and RNA: The work builds off of previous work, which had expanded the genetic alphabet to six letters. The researchers call their eight-lettered nucleic acids "hachimoji,"...

Used a P100 to pipette 93.6 micro-litres of fluid. There was an air gap in the pipette tip the first time I did it but no air gap the second time. I'm assuming there shouldn't be an air gap but can somebody tell me for sure?

Good morning, I would like to know if its possible to do my Master degree in any field related to space and astronomy, actually I graduated with bachelor of applied science (Medical Imaging). I deal with x-ray and imaging machines. My courses were somewhere between biology, x-ray (radiation)...

https://www.cbc.ca/news/technology/hemimastigotes-supra-kingdom-1.4715823 Citation to the paper being discussed: Lax et al. Hemimastigophora is a novel supra-kingdom-level lineage of eukaryotes. Nature. Published online 14 Nov 2018. https://www.nature.com/articles/s41586-018-0708-8

Hi, currently I am a freshman who is majoring in Biosystems Engineering. I selected this major because I did a lot of research into biology undergrads and I didn't like what I saw. I got the notion that these majors did not emphasize the technical skills necessary to do well in a science...

I just found this insect and I don't know what is it. It seems to be the larva of a fly or maybe a little butterfly. I live in Spain so it is fall. What should I do with it?

Hello, I'm having trouble understanding how and why the math is the way that it is to get the answer. The question states: A specimen has a diameter of 1.5 micrometer. What is the minimum magnification that will allow a human to resolve this object? 150 micrometer/1.5 micrometer = 100X <--...

This is probably a stupid question but I have Neumann BC boundary : ## \nabla u . \vec{n} =0## (same for ##v##)conditions for the following reaction-diffusion system on a [0,L_1]x[0,L_2]x...x...[0,L_n] n times in n dimensional space so ##u=u(x_1,...,x_n,t)## is a scalar I believe? so that ##...

Hi all, I have a question about this exercise: Which is the best option of pH for electrophoresis separation of two peptides with isoelectric points of 10.3 and 7 respectively? The given options of pH are 3,8 or 10. I've thought that if pH is more than 7, then, there will be positive charge...

What is meant by work done by the system and work done on the system, in biological systems? In physics related systems however: Work is simply a force multiplied by the distance moved in the direction of the force. A good example of a thermodynamic system that can do work is the gas confined...

Here is a longish article from the New York Times Magazine about Carl Woese (who died in 2012). Woese discovered the archaea (like bacteria but different), the three domains of life (archaea, bacteria, and eukaryotes) and was involved the modern appreciation of horizontal gene transfer and...

I am going into the final year of my Physics with Theoretical Physics degree (in the UK) and have been thinking about moving on afterwards to a PhD. The thing is I have always had an interest in biology (i have only been able to take one biology-related module in my course) so I was wondering if...

So I'm attempting to write a scientifically accurate story and i need some help with the planets characteristics. I have a few things set up already and need some educated guesses and ideas for how the rest will work. So to start with what i have: Planet name: Remvale Radius:~8370 miles Gravity...

https://www.physicsforums.com/insights/dont-fear-https://www.physicsforums.com/insights/dont-fear-crispr-new-gene-editing-technologies-wont-lead-designer-babies/-new-gene-editing-technologies-wont-lead-designer-babies/provides scientists with an easy way to introduce targeted genetic changes to...

Is there a database that can help answer this question? Any references? Thank you!

An important step in the evolution of plants, animals, and other complex, multicellular forms of life was eukaryogenesis, the evolution of eukaryotes. Eukaryotes are one of the three major classifications of life (alongside single-celled bacteria and archaea) and are characterized by cellular...

Homework Statement Attached Homework Equations Below The Attempt at a Solution To be honest I was going to differentiate one equation to get a 2nd order ODE and plug in the other equation, since to me ##v(0)=0## is not strong enough to do as below, am I completely mis-interpreted...

Hello guys! I am new in this forum. I am an engineering student, and I've recently taken an interest in Biology. My background is a bit poor, so I bought an introductory book (https://books.google.com.ar/books/about/Biology.html?id=itHVNZicPgwC&redir_esc=y) and I got to unit 11. I find that the...

Hello, I’m an undergraduate physics student. Recently, I recognize that I am interested in evolution and I want to study life’s origin. When I preferred physics, because I want to learn how nature works. Now, I am not only interested in how nature works, also I’m passionate for neuroscience and...

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 recently watched a rerun of "Jurassic World" on TV. Seeing the pterodactyl attack, I got to thinking; Is there a formula to determine the maximum weight a flying bird, bat, pterodactyl, or whatever can have given the force of gravity g at the planet's surface, and the atmospheric pressure?

Hello everyone, This is my first post and I would like to briefly introduce myself and my situation. I'm 27 years old and a high school drop out, former drug addict, and three time college drop out. I have severe ADHD and insecurities which have made academia too difficult for me to pursue. I...

I was studying evolution and speciation and an example was given in my textbook. It said that there is a species of red beetles and through variation a green beetle is formed and then is naturally selected as red beetles are easily seen by crows and green are not. My question is where does the...

Hello! I don't really know how High School ends in other countries but in Sweden it ends with an examination project depending on the programme you've selected. Anyhow we were free to choose one research topic that is related to mathematics, physics, biology and chemistry. I choose the brain...

Hello, I am looking to change my major to become a marine biologist. As I view the different programs that are out there I have come into a couple of conflicts I was hoping you guys could help me with. The first being I have the option to either major in biology and get a masters in marine...

Hello! I am about 60 credits away from my bachelors degree in Biology going to UTA in Arlington, Texas and while this is a physics forum that I joined in order to get help with my physics classes that are mandatory I thought perhaps there would be some interesting perspectives here since both...

Math majors and physics majors have to take introduction to biology as a graduation requirement. This biology class is the one required for biology majors. It is the first class in Bio majors sequence. I am spending some considerable time on the material, almost all my studying time, and I am...

Hello. I plan on being a doctor when I finish high school, but I’ve had some trouble with science. My grades aren’t bad or anything but right now, I find biology dull and boring. We’re learning about cells, mitosis, and similar stuff and I just can’t get into it. Does this mean life sciences...

Dear members, Do you maybe know some good reference for the application of differential geometric methods in biology, especially evolutionary theory, game theory, population ecology. I kinda feel that the application of mathematical methods in biology in general is a field of increasing...

Is there any research being conducted on how quantum physics can be used in biology? Has quantum physics, in any anyway, helped in the advancement of the medical field?

hello! So i have been working in manufacturing (aseptic processing) big pharma for more than a year now. I have a biology degree. I am 26 to 27 next month. I do not like it at all, since I feel like I am in some ways at the bottom of the food chain. Least payed, little advancement and...

Hello Does radioactivity help fungi to grow? The article is 10 years old, I do not know if there is something newer... https://www.scientificamerican.com/article/radiation-helps-fungi-grow/ Thank you for your time. Regards, ORF

Question for biologists, Let's say I break my leg. My children will not be born with broken legs. However, if I have blue eyes, my children might be born with blue eyes. What is this attribute called? Inheritability? I think there is a proper word for this aspect. Can you help? Thanks

Hello In evolution, the archetype rule is the "natural selection" rule. Are the other selection rules? (technological selection rules, cultural rules, etc) Thank you for your time. Regards, ORF

Hi! I'm interested in learning more about BCIs and the different types of career areas associated with it. I've have a interest in learning about them for commercial use/interaction with everyday objects and was wandering what type of degree/science studies this type of topic/thing... Thanks...

Since my previous thread was rudely closed by Mark44 I am opening a similar themed thread. Did I miss a rule or are people just not allowed to ask for thoughts here? I have a bachelor's degree in biochemistry and one year of research experience. I'm trying to get a PAID research position at one...

A nice thing about biology is that you might get to name things, which can have entertaining results. A recently described ankylosaur was named Zuul (after a ghostbuster monster) crurivastator (~ destroyer of shins).