Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

29 March 2015

Hospital Births - A Distinctly First World "Problem"; (Slightly) Less Crazy Than The Anti-Vaccine Movement...

One of, if not the primary argument of proponents of home birth is that the process of giving birth is a natural process, one that the female human body was literally designed to do, and therefore barring the occasional special complication, there is no reason to treat it like a medical emergency or disease.

And superficially - especially looked at from our current generation's time - that seems to be a pretty reasonable argument.

There's just one big glaring hole in that argument: prior to modern medical interventions, giving bilth was the single most likely thing to kill a woman of child bearing age.  In the 1850s, those with no access to even the rudimentary level of medical care (i.e. slaves) had a 20% chance of neonatal mortality.
In other words, the "natural" process of birth killed 1 out of 5 humans who attempted it.
"In the 1850s, the infant mortality rate in the United States was estimated at ... 340.0 per 1,000 for African Americans"
http://en.wikipedia.org/wiki/Infant_mortality#In_the_United_States



In addition, another 1.5% of mothers die from the process with no medical intervention.

"Bearing a child is still one of the most dangerous things a woman can do. It’s the sixth most common cause of death among women age 20 to 34 in the United States.""In the United States today, about 15 women die in pregnancy or childbirth per 100,000 live births. That’s way too many, but a century ago it was more than 600 women per 100,000 births. In the 1600s and 1700s, the death rate was twice that: By some estimates, between 1 and 1.5 percent of women giving birth died."
http://www.slate.com/articles/health_and_science/science_of_longevity/2013/09/death_in_childbirth_doctors_increased_maternal_mortality_in_the_20th_century.html

That makes it a medical emergency.

26 March 2015

Reading list to assist in understanding everything about everything

While I'm sure there are plenty of people out there who think I'm an idiot, I think (hope?) its fair to say there are at least a few who find me to have an above average grasp of how the world works.

I don't really think I'm all that much "smarter" than average.
I may have a slightly better than average ability to spot patterns in complex systems.  Side effect of being a touch closer to the Spectrum than your typical NT, I guess.

But part of it, I think, is just that its much more my goal to understand things than for most.

It seems for a lot of people a lot of the reason for adopting particular beliefs is to fit in and be popular.
That, and having those beliefs justify what people would like to be true, which is comforting or justifies something that would otherwise conflict with ethical values.

Since I've never had much interest in large groups of people, I've never had any real use for conformity - including conforming to any non-mainstream sub-cultures.
Beliefs that feed rationalizations to avoid cognitive dissonance?  Well, who knows, maybe I'm as susceptible to that as anyone, I suppose if I were doing it, I wouldn't know, would I?

Anyway, another advantage I've had is just that I've been exposed to some good sources of information that tie it all together.

21 August 2014

Women are not "naturally" submissive

Thousands of years of misogyny has created an internalized narrative of women as inherent victims that we all on some level want to continue to believe, and keeping women weak on purpose helps to keep the illusion alive.

It appears that the potential for physical dominance of men over women has only very small roots in biology, that instead the vast majority of it comes from culture. 
In my last post I showed that, at least in terms of physical differences, male dominance in the modern western world is not something men are forcing onto women, as much as something women are seeking out.


The common explanation for this relies on the assumption that our nomadic hunter-gatherer ancestors lived in nuclear families with male "bread-winners" (mastodon-hunters?) and female home-makers.
There is no reason to believe this has ever been true.
The one place anthropologist don't see female selection for height and strength in mates is primitive nomadic societies, which is where we should expect to see it the most, if the popular theory were true.
Across all species, sexual dimorphism in size and strength is inversely proportional to paternal investment.  In other words, in species where males are much larger and stronger than females (much more than the naturally occurring 10% in humans), the males never stick around to help raise young.  In more egalitarian species, where both parents invest in the offspring, the males and females tend to be the exact same size.
Sexual dimorphism in size and strength is not a natural result of a predestined male role as protector and provider.  Those roles are relatively modern cultural ones that likely developed tens of thousands of years more recently than the times of our savannah roaming ancestors.  It is more likely to have developed because of our (small) natural dimorphism than in order to facilitate it.

Or perhaps biology is just a convenient excuse, and female preferences for a partner who is able to physically overpower them may be entirely an extension of the misogynistic cultural dynamic of male dominance in general.

Just as women enforce the physical differences within couples, there is plenty of evidence that it is actually largely women, not men, that enforce male dominance in interpersonal relations as well, at least in modern Western society.

That suggestion is, of course, the polar opposite of most normal thinking on patriarchal society.

For most of recorded history, in most parts of the world, civil society has been male dominated.
Given that, it has always been reasonable to assume that the roles of dominance and submission were enforced by men - since, after all, they had the power to enforce roles.

12 July 2014

Information on my genes provided by 23andMe and Promethease

Finally got my DNA analysis back from 23andMe:


Since the FDA stopped allowing them to interpret the data for their customers, I had to spend an extra $5 with https://promethease.com/ to get useful information out of it.
Here's the most interesting and useful stuff they found:

gs 229 & i3003137(A;T)- Sickle cell trait; resistant to malaria but a carrier for sickle cell anemia. Note some believe gs229 individuals should be identified by screening before being exposed to extreme physical exertion due to ~30x higher risk for sudden death
 Sickle Cell Anemia carrier - "Bad news: You are a carrier for Sickle Cell Anemia. You should consider having your partner tested before before having children. The good news is that you are naturally resistant to malaria."
[I learned this at Coast Guard bootcamp. The info the doctor gave me said there is rarely any real life effect, other than sudden death during extreme activity such as mountain climbing or... military bootcamp! I didn't die though :P ]

gs251 - Beta Thalassemia carrier (Beta thalassemia is a hereditary disease affecting the hemoglobin - similar to sickle cell)
[I guess I should go visit the tropics, take advantage of the fact that I am malaria proof]

rs738409(G;G) - higher odds of alcoholic liver disease, increased liver fat While found in 55%+ of all people, alcohol seems to be 3x more damaging to your liver than typical
[That's ok, I rarely drink anyway]

rs7294919(C;T) Moderately enhanced hippocampal volume
The hippocampus is a critical brain structure involved in learning and memory. In particular, it is associated with the ability to form long-term memories of facts and events

rs2237717(T;T) - roles in general neurodevelopment and in the development of autism . Rs2237717 has been linked to schizophrenia, and the ability to recognize facial emotion.  Possible cancer protection.
[I've always suspected I may have just a touch of Asperger's / ASD.  Not enough to be diagnosable, but enough that I often sympathize more with the experience of aspys than of NTs.  Wonder how much of that is related to rs2237717(T;T) ]

11 July 2014

The downsides to empathy

"You have a SNP in the oxytocin receptor which may make you less empathetic than most people. 
When under stress you may have more difficulty recognizing the emotional state of others which impacts loneliness, parenting, and socializing skills 
Lower levels of reward dependence (reliance on social approval). Lower autonomic arousal while perceiving harm to others." 

Indeed, I've been told by many people that I am not empathetic enough, and I have social skills only slightly better than someone with Asperger's. 

But I object to the characterization of this as "dysfunction". It is different than the norm, sure.
Does empathy imply more morality?  Is lack of empathy a pathology? Not necessarily


Just because I can't tell how you feel from your expression doesn't mean I'm any less likely to care. It just means I need more explicit communication - which is generally a good thing anyway. 
Combined with good communication, I bet it makes for less misunderstandings: while I do worse than average on "Reading the Mind in the Eyes Test", I KNOW when I'm not sure, while people who do better are often confident even when they are wrong. Therefor I'm more likely to ask. 

A study published in the journal Science by Dr. Hillel Aviezer of the Psychology Department of the Hebrew University, together with Dr. Yaacov Trope of New York University and Dr. Alexander Todorov of Princeton University, confirms my theory: "viewers in test groups were baffled when shown photographs of people who were undergoing real-life, highly intense positive and negative experiences. " (as opposed to the typical "Reading the Mind in the Eyes Test" which uses actors). "When the viewers were asked to judge the emotional valences of the faces they were shown (that is, the positivity or negativity of the faces), their guesses fell within the realm of chance. " 
http://www.sciencemag.org/content/338/6111/1225 
Nobody can really "mind read". But people rated more empathetic absolutely believe they can. Sounds like dysfunction... 

Reliance on social approval is a terrible thing! 
This study http://mic.com/articles/92479/psychologists-have-uncovered-a-troubling-feature-of-people-who-seem-too-nice isn't really about "niceness" as it claims, so much as about the politeness that stems from a high reliance on social approval. In other words, ASDs are a lot less likely to hurt others in order to fit in or be accepted.
The typical human will deliberately choose what they know to be a wrong answer, just so they can fit in with everyone else: http://www.simplypsychology.org/asch-conformity.html
 Reliance on social approval is the basis of peer pressure, of group think, of failure to act in crises (if others are around), of the negative feelings of shame and low-self-esteem. And as the study above shows, it makes people more likely to be evil. I'm at a loss for what positives come from it. It sounds an awful lot like dysfunction to me. 


Lower autonomic arousal while perceiving harm to others is probably a trait you want in, say, a rescuer (USCG Search and Rescue, for example, which I am, or a firefighter or cop or paramedic) - similar as I said above, the fact that I don't have a strong emotional reaction to your distress doesn't mean I don't care. It means I can stay calm and collected during your crises, which makes me more effective at helping you. Do you really want your rescuer to be so sympathetic that they freak out or start crying when they see how much pain you're in? 
A highly sympathetic pediatrician would develop lots of stress from continually causing children pain, even though they know the shots are in the child's best interests. Again, that sounds like dysfunction to me. 

Aspys and similar folk tend to be more intelligent and better at all sort of tasks. The fact of being less common doesn't automatically imply pathology - if it did, being overweight would have to be reclassified as normal, and a healthy BMI would have to be considered disfunction (at least in the US). 
Evolution has gone from pure stimulus response to instinct behavior to emotional reactions to higher order reasoning and logic. I propose the rise of the Aspys, who are less emotional and more logical, is another step in that direction!

05 May 2014

Healthcare: the last mainstream superstition

Question:

Have you ever taken a drug that you know for sure works, because you could feel the difference it made?
















07 April 2014

You trust yourself WAY too much

Think about all the stuff you know, on all the millions of topics there are to know stuff about - numbers, names, relationships, science, history, skills, where you left your keys...
Now think about how many times in your life you have been mistaken about something you had been pretty sure of.

Of all the stuff you "know" right now, a fair percentage of it is wrong.

For some strange reason, nobody seems to notice this, and everyone goes on being sure about all manner of things - frequently including things that there is no possible way they could know for sure.

We (humans) have figured out a fair bit about our own minds.
Our awareness, perception, and recall are all very, very bad; yet we almost all almost always remain confident that our own perception accurately portrays the world outside our heads, that our memories accurately reflect what actually happened.

But you don't have to take my word for it.


The following 3 documentaries are really fun. They are interactive - if you have any doubt about your own limitations, if you don't doubt your self as much as you should - these videos should cure you of that, and grant you some humility.
And they do it in a totally entertaining way.

Watch 'em!!!

30 August 2013

Refuting the "Big Car = Safe" Myth

It is a universally known "fact" that the bigger the vehicle you drive, the safer you are.
Even those who buy small vehicles know this, they just feel that the increase in risk is small, and the benefits to parking, mileage, and cost are worth it.
Like many other universally known things, it just happens to be wrong.
This is extremely easy to prove:  just look at the actual crash statistics, compiled by vehicle weight:

Inline image 1

28 August 2013

Refuting the theory that physiologically facilitating rape is "self-protective"

I've been surprised to come across more and more references lately to a relatively new theory among some sex researchers that the reason women reflexively lubricate to certain stimuli which they don't self-report as being arousing is that it evolved as the body's way of protecting itself in the case of sexual assault.
Here is an example:

Genital response to sexual stimuli may be an evolved self-protection mechanism. Female genital response is an automatic reflex that is elicited by sexual stimuli and produces vaginal lubrication, even if the woman does not subjectively feel sexually aroused...Female genital response entails increased genital vasocongestion, necessary for the production of vaginal lubrication, and can, in turn, reduce discomfort and the possibility of injury during vaginal penetration. Ancestral women who did not show an automatic vaginal response to sexual cues may have been more likely to experience injuries that resulted in illness, infertility, or even death subsequent to unexpected or unwanted vaginal penetration, and thus would be less likely to have passed on this trait to their offspring....Reports of women's genital response and orgasm during sexual assaults suggests that genital responses do occur in women under conditions of sexual threat.
http://www.psychologytoday.com/blog/love-sex-and-babies/201105/why-do-women-get-physically-aroused-and-not-even-know-it

The first time I saw it it immediately struck me as suspect and I questioned it in the comments of the webpage that quoted it, and went on to forget it.  But since then I've seen several more allusions to the same theory by different researchers in different contexts, and its really starting to bug me.
As I talked about in great length in my previous post, there is a nearly universal - albeit frequently subconscious - assumption in human society that women are inherently prone to being victims.  This (largely baseless) assumption is just as strong among feminists as it is among traditionalists and patriarchs, although it takes different forms.

17 December 2012

The Last Big Question (the evolution of consciousness itself)

In The Beginning, There Were Amino Acids.


Amino acids are rather complex, and anything complex is fairly unlikely. Then again, solar systems and galaxies, water and rock cycles, and particle physics are all magnificently complex too, and they all happen to exist. Even just within inorganic chemistry, plenty of naturally, randomly occurring compounds are more complex than amino acids.

Its very uncommon, but it has been found that, under just the right circumstances, amino acids can form spontaneously. Just the right mix of carbon and nitrogen, some oxygen and hydrogen, maybe just a touch of sulfur, make it all aqueous (dissolve it in water, so they can all move around) and maybe zap it with a bit of that proverbial lightning for good measure - at this point it is still nothing more than an ordinary chemical reaction - and you got yourself one of the fundamental building blocks of life.

(Alanine; Black = Carbon, White = Hydrogen, Blue = Nitrogen, Red = Oxygen)


We know the end of the story, but considered alone there is nothing especially special about some random amino acids floating around in puddles. Just about everything is made of compounds (two or more elements mixed together), not-particularly-sexy things like rocks and dust and air and water. Some have more different elements mixed together than others.

Granite is made of several compounds, (quartz, mica, and feldspar), themselves made up of combinations of oxygen, silicon, aluminum, iron, magnesium, potassium, calcium, sodium along with trace amounts of other elements. It makes up the vast majority of the surface of the Earth, (there is somewhere on the order of 20 billion times more of it than there is of all living things on the planet - plants animals, bacteria, everything combined)

In comparison with granite's 8+ elements, amino acid's 4 seems almost simple, and compared to its abundance, amino acids are downright insignificant.

06 September 2012

Advertisements that only work due to ignorance and stupidity

I don't generally see a lot of ads, thanks to AdBlock on the computer and a RePlayTV unit that automatically skips them when I watch an occasional show, but between Hulu, the few that get past the RePlay's filters, and billboards, I can't seem to escape them entirely.
Which is fine, they are paying for me to have free content, some of them are entertaining, and every once in a great while actually informative.

But there are 3 out right now which grate against me so severely that the only way I'm going to be able to stop ranting in my own head about them is to rant on the internet.

They are deliberately relying on consumer's ignorance in order to try to convey a message which simply isn't there - the facts are technically accurate, but the implication is actually the exact opposite of reality.


1) The new milk campaign, attempting to discredit soy milk:



They list a bunch of scary sounding "chemicals" that soy milk contains, to contrast with cow milk, which according to the ingredient list has only one ingredient: "milk".
Never mind that the list of scary sounding chemicals they list consists almost entirely of vitamins and minerals which are actually quite healthy, or neutral at worst.

So, in the interest of fairness, here are some scary sounding chemicals that are present in cow's milk:

28 April 2010

Science!


By Bakari Kafele | April 28th 2010 09:24 AM


Introduction:

(One simple rule)

Science is not guys in lab coats.  Science is not beakers and test tubes, or fancy expensive equipment that requires a degree to operate.
Science isn't something funded by corporations or the government or universities.

Science isn't even chemistry or physics or biology.  It’s (unfortunately) not something taught in school.

In its absolute simplest form, science can be boiled down to one straight-forward rule:

Check that you're right.

26 April 2010

Global Warming Revisited


  • Apr 26, 2010

Global Warming Revisited

(The following was a "letter to the editor" I submitted to a progressive magazine in response to articles on global warming)



In "American Psychosis" you point to the many people who acknowledge global warming, but do not change much, if anything about their destructive lifestyles, and in "Hot Air" talk about the point of view of skeptics and deniers.

I run a certified green hauling business. I modified my delivery truck to get 30mpg (from 15mpg) and run it on 100% biodiesel made from recycled veggie oil.  I also work part time supporting people who bicycle to work  (at a business which runs at a loss because our main service is free).  I live in a 250square foot home and use less than $5 worth of electricity most months.
I also have some background in science, including degrees in earth science and biology, and generally track down sources for claims I read.

Having read arguments on both sides, I am not convinced that humans are significantly contributing to climate change.  While I admit I haven't kept up with the latest research, I have yet to see several points addressed:

27 April 2009

Gay Animals, Social Sex, and a Misunderstanding of Natural and Sexual Selection


  • Apr 27, 2009

Gay Animals, Social Sex, and a Misunderstanding of Natural and Sexual Selection

http://seedmagazine.com/content/article/the_gay_animal_kingdom/

At first I was going to comment directly on the article, but couldn't find a place for it.
Then I noticed the article is 3 years old.
Disappointing.
Then it occurred to me; that's exactly what my blog is for!  Remember?  Duh.

On to my comments:

This is a fascinating study and long over due research, which deserves far more attention that it's gotten for both social and scientific reasons.
However, I must partially object to the conclusions of this particular article.

It presents a false dichotomy.  None of the observed activities contradict the basic principals of Darwinian evolution, including sexual selection.  They may seem to contradict some assumed extensions of the basic mechanisms of evolution, but those assumptions are the things which must be thrown out, not the entire theory.

Sex serves a social function.  This is true not only in humans, but in a great many other species as well - generally those that are more complex, intelligent, and social.  This much is clear.
This does not mean sex is not also about reproduction.  It is not an either/or question.  To dispute that sex is primarily about reproduction, the survival of one's genes, is just plain silly.

29 October 2007

unborn humans and social conservatives; mixing emotion and politics


  • Oct 29, 2007

unborn humans and social conservatives; mixing emotion and politics

I went to see the exhibit where they dissect human cadavers, coat them in plastic, and display them in various poses in a cross between anatomy education and a morbid art form.

Two of my three companions skipped the section with embryos and fetuses, as well as a pregnant woman.



I found this surprising, as I found it among the most interesting of the sections there.

12 June 2007

Sexual Dimorphism, and Caveman Love


Sexual Dimorphism, and Caveman Love







Its the scientific term for species where the genders have non-reproductive body features which are distinct from each other, like a mallard's green head or a peacock's tail.  The fiddler crab probably doesn't count because his giant claw is used directly for the mating process.  Many species the genders are both the same size, but differential size sexual dimorphism is very common.

In insects, spiders, microscopic animals, some sea life, a lot of variety exists. Often the female is many times larger than the male, sometimes the male lives symbiotically or even parasitically within the female for a life time, or males live only a few days while females live for months or years.
In the larger animals, the chordates, there are two primary strategies. 
In some species, the males show off for the women, build a better nest, do a sexier dance, show off bright flashy colors, and the women get to choose. 
In others, the men threaten each other, fight if need be, and the winner gets his pick of women - or as many as he can handle, or even all of them.  In this case, it is purely a question of physical dominance.  It doesn't matter if he is ugly, or stupid, or mean.  As long as he's strong, he gets to mate with all the women, whether the other guys like it or not; not to mention whether the women like it or not.  Occasionally, in many species, the women have affairs with certain less dominate males, risking the wrath of Brutus for themselves and their partners.

10 September 2006

21; 2 simple points to convince any rational person Americans are so stupid that it's hopeless


  • Sep 10, 2006

21; 2 simple points to convince any rational person Americans are so stupid that it's hopeless


1 More than half of us still believe in creationism, even after humans have invented genetic engineering. This is artificial evolution. It has been done, and is being done continually.  It is no more a "theory" than gravity. Gravity is also a "theory" in the scientific sense of the word.  This does not mean that things might not fall down.

2 We don't use the metric system. It's better in every way - how many mm in a cm? 10. How many cm in a m? 100. How many m in a km? 1000. How many mm in a km? 1,000,000. How many grams of water in 15 cubic cm? 15.
How many inches in a mile? Who the fuck knows? How many ounces in 15 cubic inches? good luck, better have a reference book and calculator handy.
The entire rest of the world knows this, but not America.)

As long as these two facts remain true, how can we expect anything substantial to get better?

10 August 2006

Item 12; in which abortion is NOT an matter of the right to life, & NOT a women's rights issue.


  • Aug 10, 2006

Item 12; in which abortion is NOT an matter of the right to life, & NOT a women's rights issue.

 [I originally wrote this in '06, but added a bit 24Mar2012.  I tend to be on the liberal / progressive side of most things - but as I say in my blog's header, I am not beholden to a "side".  This is one of those times.]

[Looking at it objectively, I have to say that the conservative right is wrong on this issue - but they are wrong for the right reason.  The left is right, but just by lucky coincidence.  They are right for the wrong reason. 
Now, you might think that as long as they get it right, that's all that matters - but you would be wrong.
Because the country is divided pretty evenly right and left in this country, and its a very important issue.  The arguments pro-choice people make have no affect on public opinion, because they are ignoring the actual issue.  If we give up on convincing people it has anything to do with women's rights or reproductive freedom, and instead focus on addressing the "life" part of pro-life, we have a much better chance of actually swaying the opinion of the people on the other side.]

Not human?
Human??












Why the hell is it so hard for both sides (of the abortion issue) to see that it is NOT a question of morality, and it is NOT a question of women's rights?
It comes down one philosophical / scientific question:

At what point can you consider something human?

03 August 2006

Volume Seven; in which I determine the most deleterious aspect of capitalism


  • Aug 3, 2006

Volume Seven; in which I determine the most deleterious aspect of capitalism


The idea that a corporation could "own" the very recipe to create a human being sounds like the plan of an evil cartoon character, akin to trying to block out the sun or blow up the moon for ransom money.

Gene patenting is very real, and it has been happening for years.

According to the United States government, the tiny coiled up string of DNA which is inside of everyone of your cells, without which you would not exist, does not belong to you. It belongs to some pharmaceutical corporation.