Questions tagged [literature]

Questions about scientific journal papers, books or other written sources, or for requests for references.

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9k views

How long does it take for dopamine to reach normal levels after a significant drop?

The building block sequence for is: Phenylalanine << Tyrosine << L-Dopa << Dopamine. It’s produced in only a few, very specific regions: Substantia Nigra and the Ventral Tegmental ...
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Floats of Algae, a house-made conjecture

Background In North of Scotland there are many seaweed types. One is a green algae (chlorophyta). They are full of 'bubbles'. According to web searches one of those bubbles (there are two types you ...
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How precisely can humans identify differences in air temperature?

"It feels like it's 30° today" I'm fascinated by how human perception compares to electromechanical sensors in terms of accuracy. "It feels like 23 minutes have passed since I put the cake in the ...
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Recommended books and articles on the origin and evolution of sexual reproduction? [closed]

I'm interested in learning about the origin and evolution of life on Earth. In particular, one topic that puzzles me a lot as a layman is the evolution of sexual reproduction, since the DNA mutations ...
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Are there peer-reviewed articles on the math (probabilities) of abiogenesis?

A recurrent claim from ID proponents is that the probability of abiogenesis having taken place is extremely low (take this as an example). This makes me wonder, are there peer-reviewed articles ...
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Self-study genetics

I'm new at the field of genomics. I'm a theoretical physicist by training and now we would like to translate some of the ideas to the DNA, possibly in real genomic instances. The concrete example ...
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Is the SHC014 chimeric coronavirus “eerily similar” to Covid-19 in anything but a journalistic sense?

Gulf News writes: In the virology community, their project is known as "chimeric coronavirus", eerily similar to COVID-19. This chimera is created in a petridish, reportedly with the "surface spike ...
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True examples of common variation due to Mendelian Inheritance

Classic examples of mendelian inheritance are genetic diseases such as sickle-cell anemia, Tay-Sachs, cystic fibrosis, and xeroderma pigmentosa. For some of these diseases, it is believed that they ...
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Best fundamental literature about genetics [closed]

I'm seeking for good genetics literature. I'm not afraid of it's complexity, because I want to have relevant knowledges about molecular genetics. After Wikipedia articles and basic molecular-biology ...
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184 views

What are the secondary structure requirements for cell-penetrating peptides AKA protein transduction domains

Cell penetrating peptides. Cell penetrating peptides (CPPs) are a class of short amino acid sequences which are sufficient for crossing cell membranes and delivering themselves along with any ...
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Are there any studies on the solar latitude limits of different plant species, beyond which they wouldn't thrive even with suitable weather?

Not sure whether this belongs here or in the Gardening & Landscaping StackExchange, but here goes... According to maps provided in the paper Present and future Köppen-Geiger climate ...
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What percentage of individuals infected with COVID-19 don't have symptoms?

There are various statistics estimating mortality of COVID-19 infections, based on how many diagnosed people have died. These numbers are used by various media to extrapolate how many people will die ...
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How does species diversity vs Earth total biomass relate?

Are there any laws/theoretical foundations about how diversity of species relate with total biomass on Earth? While there is a lot of esoteric sort of talk "humanity dis-balances the live on the ...
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How does paracetamol work?

Hinz et al. 2008 found that COX-2 may be inhibited by paracetamol, and this is attributed to it's analgesic and antipyretic properties. However, there are other more recent claims from Andersson et al....
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Two-dimensional anatomical maps of the brain

The three-dimensional anatomy of the brain is hard to comprehend visually. But the exact spatial relations between the parts of the brain and their shapes are (sometimes) not so important because ...
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Ion-gated ion channels

Today I've heard for the first time of calcium-gated ion channels but find it hard to get an idea how they work, where they are located, and which role they play. I assume calcium-gated ion channels ...
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Is it “easier” for researchers to detect evolutionary ancestry than distance in the evolutionary tree?

I'm a researcher in another field who has wandered into a problem with applications to biology. I hope to sell my results by making the following statement: Given two species X and Y, it is "...
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Is feeding wild pigeons really “weakening the entire species”?

While reading about what foods are healthy for pigeons, I came across the following paragraph: (Source) Human interaction and improper feeding of domestic and wild pigeons is believed to be one of ...
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Looking for the closest example of life forms similar to some mathematical patterns

Caveat: this is my first question here, it is quite interdisciplinary, but I hope to be in the correct place to ask. I am a user of Mathematics Stack Exchange since some years ago, and this question ...
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Reference Request: Human visual system takes in $10^7$ bits/sec at the periphery and compresses it down to 50 bits/sec deep inside

In Sparse Components of Images and Optimal Atomic Decompositions by Donoho, 1998, the author claims that The human visual system is thought to do a tremendous job in achieving sparse ...
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What's a good reference for learning about recombinant proteins?

I'm looking for books and articles that can bring me up to speed on the design, expression, and purification of mammalian proteins in recombinant systems, both in E. coli and in more complex systems ...
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Fully understanding the Horvath clock and other epigenetic clocks?

My goal is to deeply understand both biological and quantitative theories that underly the Horvath clock and other epigenetic clocks and especially their limitations. I would love to know references ...
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quantification of glucose utilization in different metabolic processes

Glucose is commonly associated with ATP production. However, only a small fraction of glucose is utilized this way. The intermediates of glycolysis, TCA cycle, etc. are precursors to various ...
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Original Lotka–Volterra model

I am looking for the articles in which Lotka and Volterra published their original predator prey model. I couldn’t find the model presented in many textbooks in Lotka’s book Elements of Physical ...
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Nature versus nurture regarding aggression in specific dog breeds

A week ago I was bitten in my face by a dog that originally came from an asylum. That dog is half Rottweiler. Some people claim that the history of the dog is probably different from what the asylum ...
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A biological system to measure time

First of all I am a physicist, so I apologise for my non-existent understanding of basic biology. However, I have what I think is an interesting question and this seems like a good place to ask it... ...
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Human evolutionary innovation for rapidly restoring glycogen, and link to cardiovascular disease?

I'm a physicist, not a biologist, but I'm interested in human evolution and its link to the physiology of endurance sports. Circa August 2019, I read an article in the newspaper whose contents I'll ...
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Methods: Homologous recombination and retroviral infection

I'm looking for a textbook that explains these methodologies: Use of homologous recombination to insert a gen-cassette into another organism's gen. Use of retroviral transduction to deliver genes ...
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What is the location of the Hypoglossal nerve?

I kind of know where the hypoglossal nerve is located when I look at the diagram, but I'd like to know how far is the nerve from the skin and where is the closest area to the skin before and right ...
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How to microscopically identify (at least roughly) fungi which not producing any specialized reproductive structure?

If a fungus does not produce any kind of recognizable sexual or asexual reproductive structure but keeps producing vegetative hyphae; is it possible to at least roughly identify them using a compound ...
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Growth rate oscillation in the a population of non-interacting bacteria

I have come across this theoretical paper claiming that if you start a batch culture from a single E. coli cell, the exponential growth rate of the population defined as $$k = \frac1N \frac{dN}{dt}$$ ...
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Why do stem cells injected into muscle become muscle cells?

In this article published in Science Daily, researchers injected teratoma-derived stem cells into mice with muscular dystrophy, and the stem cells regenerated 80% of the lost muscle. But what is the ...
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Where should I go for online information on animals endemic specifically in Mozambique?

I've been involved with the citizen science project "Wildcam Gorongosa" for over half a year now (website, forum). As there are lots of unexperienced volunteers, many questions are being asked. Often ...
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Where to look up animal facts concisely

Googling leads to results such as this: DIET Eagles primarily eat fish, carrion, smaller birds and rodents. Eagles are also known to prey on large birds and large fish. POPULATION Bald ...
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Database of colors mapped to species

I was wondering about the physics of color, and now am interested in finding out if there are any resources (databases, text files, html tables, or pdf listings) of species and their associated colors ...
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2answers
71 views

Are there any non-pathogenic gram-positive bacteria in human gut?

I wish to know if there are any non-pathogenic (not even opportunistic pathogen) gram-positive bacteria in the human gut? Is there any reference that shows there exists a non-pathogenic gram-positive ...
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How to get taxonomic tree data

I am looking for taxonomy data of individual species and their classes something like the following format: ...
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1answer
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Time spent in phases of cell cycle

I am looking for references to papers containing the time intervals spent in different phases of the cell cycle (ej., G0, G1, S, G2, M for eukaryotes) for different cells. In particular, I am ...
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Reference request: Lipid composition in bacterial, yeast and human membranes

I would like to know about the lipid composition of different kinds of cellular membranes. I remember going through such a table once in a paper, but I am unable to find it anymore. What I am looking ...
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Is autoimmune disease associated with self-reactive B cells?

I'm a bit of an amateur, so excuse what may be a very naive question, but I somewhat understand how B cells that are self-reactive (bind to endogenous epitopes) are selected out during development. I ...
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Clarification of method notation in yeast cultivation method

I'm reading a paper about yeast culture and in the methods, it says: Then $5$ ml of sterile $M/15\ KH_2PO_4$, was added to the slant, What is the meaning of $M/15$?
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Global database for patients with rare and important injuries or disease?

I was recently reading Christof Koch's The Quest for Consciousness, and several times he mentioned how important some patients with sad and terrible brain injuries were for the understanding of the ...
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1answer
176 views

Why is exclusive breastfeeding recommended for 6 months only?

The WHO recommends exclusive breastfeeding for the first 6 months of a child's life. Review of evidence has shown that, on a population basis, exclusive breastfeeding for 6 months is the optimal ...
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What is the status of the “Free Energy Principle” as a theory of living organisms?

The free energy principle states that biological organisms maintain their order by minimizing a function called variational free energy (VFE). While it is the case that the minimum to VFE also ...
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Can one talk about deacetylation of a promoter rather than associated histone?

I am confused on a detail in a paper I am reading and am not sure whether I am misunderstanding the wording or misunderstanding the concept. I am including the whole abstract of this paper for ...
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30 views

What does hypolithial mean

I'm writing a thesis in biology and my supervisor asked me to find literature about beetles living under rocks - specifically she wants me to find something about hypolithial diversity. However Google ...
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1answer
34 views

What is an accessible book about plant evolution for a non-biologist? [closed]

I have an acquaintance interested in learning about the evolution history of plants. This person has a wide knowledge on botanics, from personal reading and taking care of plants, but E is neither a ...
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55 views

Book on the history of Darwin's discoveries and development of his theory

This question is a book request. I am wondering if there are any books with these elements: Tells the history of Darwin's discoveries. Captures Darwin's changing views of the origins of species, ...
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1answer
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What does $g_0$ mean for a centrifuge?

I'm about to make some Graphene Oxide and in the paper for Tour's Method it uses a centrifuge to isolate the solution. However it requires $319g_0$. What does this mean, and will a centrifuge with ...
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Want reference for a convention

This answer to another question satisfactorily answer one of my major confusion. The convention is that in indicating any sequence feature† in a protein-coding gene on double-stranded DNA, a ...