Everything posted by Arete
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mRNA Vaccine Risks
1) Literally all that's in the mRNA vaccines is mRNA, phospholipids and phosphate buffered saline. All of these components have been widely used in other medical applications for a long time, and it's actually a shorter and less risky list of ingredients than many widely used live attenuated and inactivated vaccines. There is actually reason to expect that mRNA vaccines are LESS likely to cause anaphylaxis than other vaccines rather than more. 2) All tests so far have shown that while the antibodies induced by the vaccines can have reduced binding efficiency to mutant variants, the binding rate is not zero, so the vaccines offer some protection to mutant variants. 3) Over 300 million doses of mRNA vaccine have now been administered. Anaphylaxis has occurred at a rate of 11.1 per million doses and zero deaths have been recorded. 4) There is no causative explanation for why CBD would lead to reduced COVID19 infection rates, nor empirical evidence that it does. Ergo, the suggestion that CBD should be taken instead of a vaccine for ANY disease is like saying that keeping your eyes open while driving a car is a healthy alternative to installing the brakes. Edit to add Childrens Health Defence is an anti-vax organization who have demonstrably spread misinformation and false conspiracies about vaccine safety and have no place in any scientific discussion of virtually anything.
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Is the earth really our planet? Or the planet of fishes?
In the same vein as CharonY, life on earth is microbes and other minor contaminants.
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Rural Roadsigns
- Are you atheist?
In times of darkest need I tend to call upon Illumina tech support.- What is the Biological Combination Theory? Origin Of Humans – How Life Started On Earth ? Where do new viruses come from ? Covid 19
1) How did "coal", which is by definition, fossilized organisms, exist before organisms? 2) How did viruses, which by definition require cellular hosts to replicate, replicate before the existence of cellular hosts? 3) SARS COV 2 is a recombinant derivative of two ancestral coronaviruses, with approximately 20 years of evolution between it and its nearest known relative. Conversely, tailed bacteriophages have been on earth for approximately 4.5 billion years. 4) SARS COV 2 arose through the recombination of disparate coronavirus strains and infected the respiratory system of a human in Wuhan province, China in late 2019. 5) There are 12 approved COVID19 vaccines, and 54 currently in various stages of clinical trial. 6) If there were 20 bacteria in every cell of your body, you'd be dead. It's a long held myth that the human body CONTAINS more bacterial cells than eukaryotic cells, but it turns out that's wrong and there are a similar number of prokaryotic and eukaryotic cells in a human body, the vast majority of those prokaryotes housed in the gut. Not the cytoplasms of cells. Unless there is some very, very misused terminology, the entire "theory" is trivially dismissible as fundamentally flawed.- NEED HELP WITH FATHER-INLAW DRINKING Chlorine dioxide
MMS is a snake oil scam and Chlorine dioxide is an industrial bleach and disinfectant. The people hawking it as medicine are the lowest of the low. It's difficult to convince someone that they are wrong, and in many circumstances, evidence dispelling an incorrect belief can counterintuitively reinforce the belief. Here's some advice that might help you talk to him. https://www.technologyreview.com/2020/07/15/1004950/how-to-talk-to-conspiracy-theorists-and-still-be-kind/- Biological sex incongruence
There are a number of genetic causes of intersex individuals, some of which render the physical attributes of the individual to be discordant with their underlying genetics (e.g. AIS resulting in XY individuals with undescended testes and a vagina, or CAH resulting in XX individuals with masculine traits). I imagine that these conditions - typically with frequencies of one in thens of thousands might contribute to discrepancies in the designation of biological sex at birth.- math odds why people are not protesting over cancer and Heart disease?
If you look at the proportion of grown adults who will purchase scratcher lottery tickets, or think that the risk of the COVID vaccine outweighs the risk of contracting COVID, etc, etc, etc. You'll realize an astounding proportion of the human population has zero understanding of how odds ratios and statistical probability work.- agarose gel electrophoresis
Apart from the points CharonY made, I don't see a negative control, or if there is one you have a contamination issue. Are you actually asking how to optimise the PCR given the multiple banding? I would say use a touchdown protocol, or optimise your primers, but I would probably cut out my gel bands and call it a day.- Blow to US Democracy -Split from: U.S. presidential election modelling
A woman carrying a Gadsden flag was trampled to death in the Capitol building riot.- Blow to US Democracy -Split from: U.S. presidential election modelling
- Random Mutations and Biological Evolution
There are countless observations of natural selection in so called "higher organisms". Many feature as model organisms for natural selection - stickleback fish, toads, anoles, killifish, guppies, monkeyflowers, grasshoppers, Drosophila, jellyfish, lycophytes, to name a few. There are dozens of well known manipulative experiments that have comprehensively demonstrated natural selection in populations of relatively long lived, multicellular organisms, and thousands of population genetic studies on natural populations which do the same. Natural selection in modern humans is also directly observed. The best example that immediately comes to mind is the Framingham Heart Study. I think the concept that you're missing is that selection is dependent on population size. In small populations, genetic drift can overwhelm selection, leading to the loss of beneficial alleles and the fixation of deleterious ones. Conversely, the larger the population size, the lower the selection coefficient required to lead to fixation or extinction of a given mutation. https://www.nature.com/scitable/knowledge/library/natural-selection-genetic-drift-and-gene-flow-15186648/- Random Mutations and Biological Evolution
No, it isn't. The fact that environmental factors can create epigenetic mutations does not imply that the organism has any ability to control which mutations occur, nor what phenotypic changes they manifest. In fact, many are deleterious. Lamarckian evolution is not epigenetics, nor is Lamarckian evolution supported by epigenetic processes. Mutations are random with respect to fitness. Selection is the force that causes fixation of adaptive mutations. It is well understood.- Random Mutations and Biological Evolution
The full title is "Interaction-based evolution: how natural selection and nonrandom mutation work together" It clearly refers to the interaction of selection and mutation, and does not imply that an organism has some sort of ability to control the novel gametic mutations it inherits or passes on.- Random Mutations and Biological Evolution
The fitness effects of a mutation are a moving target in a variable environment. While a mutation may be deleterious or neutral in one environment, it may be highly beneficial in another. E.g. antibiotic resistance in bacteria. Further, even if the net number of deleterious mutations outnumber the beneficial, the process of selection increases the likelihood of fixation of beneficial mutations. This seems to be a version of the irreducible complexity fallacy - of which this is a good discussion of. As pointed out above, mutations do not need to be of benefit in the current environment to be prevalent or even fixed in an environment, so a trait can exist that has no contemporary function or benefit. Also, intermediate phenotypes are often more prevalent than many expect - as an example there are both air breathing fish and amphibious fish that can't breathe air that are extant today. Epigenetics and gene interactions may well be associated with beneficial mutation, however neither process could be described as effortful or interactive.- Fecal Microbiota Transplant for mental disorders
"Scientists discovered a human trait that wasn't linked to the microbiome, but they've forgotten what it is" - twitter anon. Research on the gut-brain axis is pretty nascent, but I would expect to see a lot more of the foundational research in the field to start manifesting in clinical applications in the foreseeable future.- To abstract or not to abstract
Good news! I'm a microbiologist and one of the many projects I work on is the genomics of bacteria commonly found in fermented foods. One of the things we are finding out about many of the strains that are commonly found in fermented foods, is that they are really good at exchanging transposable genetic elements - namely in the form of conjugative plasmids. When you populate a culture from "wild" bacterial strains, they likely come along with a unique accessory genome. That accessory genome can contain things like antibiotic resistance gene cassettes, toxin-antitoxin systems, efflux pump components, etc and so on. The rate at which these are expressed in the food product, or transferred to the microbiome of the individual consuming the product is probably highly variable and hard to quantify. The individual effects of genetic exchange between consumed bacteria and the microbiome are also hard to quantify - but you probably don't want your naturally occurring Clostridium difficile to pick up a beta lactamase gene cassette, especially if you wind up having to take a penicillin derived antibiotic sometime down the line. As a result, I would suggest that if one intends to commercially sell cultured food products, it would be wise to determine the genomic makeup of the bacteria used, and control for unwanted, potentially hazardous plasmid encoded genes in the strains intended for live consumption. Or you could stick a jar of sugar water outside and hope for the best, I guess.- Random Mutations and Biological Evolution
Most mutations are neutral. The lottery analogy fails due to the fact that evolution is a population level process. A diploid human genome experiences 175 mutations per generation on average. There were 3,745,540 human births in 2019 alone. That's 655,469,500 mutations across the human population in one year. Diploid human genome size is 6.4 Gb - so that population level mutational likelihood space is approximately 10% of the whole human genome in a single year. Next, "fitness" in evolutionary terms is discretely defined as genetic contribution to the subsequent generation. By definition, if a mutation is beneficial, it increases in frequency in subsequent generations (complications of neutral genetic drift aside). Therefore, "random" (they aren't actually random - only naïve with respect to fitness) explores significant portions of the human (or other species) total adaptive landscape every generation, and by definition, beneficial mutations, proliferate through the population throughout subsequent generations.- Political Humor
I started wondering how long my neighbors would keep their Trump flags up given he lost the election, then I remembered the Confederate flags...- Political Humor
- What are you listening to right now?
Blasting the tissue culture lab with Dethklok- What are you listening to right now?
- What are you listening to right now?
Saw these guys play with Dillinger Escape Plan and loved them. It's like Deliverance and Slayer had a redneck metal baby covered in hair.- Alien contact?
Here's an image outing Moontanmans's mom as a direct descendant of raptor Jesus: And the smoking gun! Proof that cultists worship him today:- Alien contact?
I know! I have proof that Jesus was a velociraptor: and his descendants live on amongst us to this day. Notice the earlobe location and the penchant for lambs. they've even infiltrated our highest levels of government: I, for one welcome our archosaur overlords, as they emerge from their long esconcement. - Are you atheist?
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