Questions tagged [literature]

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

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82 views

What is the energy required for storing and performing computations in synthetic computational biological cells?

I want to know the energy costs of various computations performed through synthetic biological circuits in terms of ATP. I am primarily interested in storing of bits, addition, and multiplication ...
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Questions on mid-2019 Covid-19 Spread in Spain

I recently read in the news from Reuters that Covid-19 was already present in the Europe in March 2019 as reported by the study by Chavarria-Miró et al (2020). According to Chavarria-Miró et al they ...
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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 attached ...
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Factors of infection rate

I refer to J.H. Jones' Notes on R0. Preliminaries The standard SIR model consists of a system of three differential equations $$ds/dt = -\beta s i$$ $$di/dt = \beta s i - \nu i$$ $$dr/dt = \nu i$...
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Is it possible to exclude article types in a PubMed search?

I have a question about searching PubMed. I want to search for original research papers while omitting reviews. Is this possible in PubMed? Example If I am interested in the relation between Acute ...
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Specific mechanism behind lethality of yellow coat color in mice

Our high school genetics chapter has some extra information about L.Cuenot. It only covered his research, and the fact that mice homozygous for yellow coat color would die before birth. It was an ...
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Symmetry in Biology

It seems a curious fact to me that all organisms I can think of exhibit some definite symmetry on a large scale (much larger than molecules), and in particular mirror symmetry. Since it is so wide ...
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19 views

Improved Vascular Stiffness due to Protein

I found this study that seems to claim that whey protein is better for your vascular health than casein protein: https://www.essentialnutrition.com.br/media/artigos/hiwhey/1.pdf Sure, it seems to be ...
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120 views

Who invented dN/dS?

I am writing a paper, and I want to refer to the original paper that coined the term dN/dS (or Ka/Ks for that matter). I have found early works on dN and dS (like Miyata and Yasunaga 1980), but cannot ...
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What is the evolution metaphor about water flowing downhill?

As part of my biology undergrad degree, I took a course on the Origin of Species, where we read Darwin's book and also several other readings about the origins of evolution. I recall that during this ...
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245 views

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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572 views

Why do cats meow but lions and tigers roar?

So as far as I know the cat animals are related to each other by evolution. (Please correct me on this if I am wrong?) How come the big cats; lions, tigers et.c. roar but smaller cats like house ...
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382 views

Difference between dysentery and bloody diarrhea

The difference between diarrhoea and dysentery is quite clear; but the appearance of blood in stool or bloody diarrhoea is a very confusing term when compared with dysentery. Are they different in the ...
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How can I search through literature databases for words containing a * when the asterisk is read as syntax and not part of a query?

I'm exploring the literature on microRNA, where it is common for the less utilised strand of the miRNA duplex to be referred to as the miRNA* strand. However, I am experiencing some issue searching ...
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306 views

General time reversible model of evolution and Felsenstein model

I would like to get suggestions for the books related to General time reversible model of evolution and Felsenstein model etc. Specifically the mathematical treatment of these topics and concepts ...
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Is faster breathing during exercise linearly more efficient?

Evolution's an amazing thing. It has this incredible ability to optimize variables, and often these optima can then be learned by people to gain insight into various biological phenomena. In exercise, ...
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Exhalation in human breath, through mouth or nose: which is most usual?

Until now I believed that breath exhalation through the mouth is common for most human beings, and this fact is implicit in several technical contexts of which I can think (sports, music, medical ...
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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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65 views

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 "...
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249 views

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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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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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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3k views

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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59 views

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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1answer
106 views

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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148 views

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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1answer
64 views

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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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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2answers
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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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1answer
107 views

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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1answer
146 views

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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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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1answer
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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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1answer
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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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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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1answer
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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 ...