linkfest – 05/26/13

Diabetes’ genetic underpinnings can vary based on ethnic background, Stanford studies say – the researchers “found a clear geographic pattern in the genetics behind type-2 diabetes. The genetic risk is highest for Africans and drops along the trajectory the first humans took when migrating out of Africa toward East Asia (primarily Japan, China and Korea), where diabetes-linked genes appear to be more protective. Based solely on what is currently known about type-2 diabetes genetics, native Africans would appear to be at higher risk for diabetes, while East Asians would appear to be protected.” – see also genetic risk world map|diabetes.

Skin color affects ability to empathize with pain“Humans are hardwired to feel another person’s pain. But they may feel less innate empathy if the other person’s skin color doesn’t match their own, a new study suggests.”

Motion quotient“A brief visual task can predict IQ, according to a new study. This surprisingly simple exercise measures the brain’s unconscious ability to filter out visual movement. The study shows that individuals whose brains are better at automatically suppressing background motion perform better on standard measures of intelligence.”

Yikes! Cockroaches Evolved to Avoid Sugary Baits – natural selection is really a nuisance!

Face Blindness – greg cochran on prosopagnosia. also: Is Brad Pitt’s Face Blindness For Real?

The Italian Invasion of American Culture – from steve sailer!

A response to two critical commentaries on Woodley, te Nijenhuis & Murphy (2013) – from woodley, te nijenhuis, & murphy @dr. james thompson’s blog. see also: “Extraordinary claims require extraordinary evidence” – with respect to the claim of intelligence decline since Victorian times – from bruce charlton. (ftr, i never said either that woodley, et al., made an entirely “extraordinary claim,” or that i require any extraordinary evidence.) see previous posts here and here.

More population structure in the Netherlands (Lao et al. 2013)“Clinal distribution of human genomic diversity across the Netherlands despite archaeological evidence for genetic discontinuities in Dutch population history.” – from dienekes.

New Theory Claims Humans Hunted, Ate Neanderthals

Are There Atheists in Foxholes? Combat Intensity and Religious Behavior“Study 1 shows that as combat became more frightening, the percentage of soldiers who reported praying rose from 42% to 72%.”

Marketing to the Big Data Inside Us“In your DNA are clues to your health, your ancestry, and maybe even your purchasing preferences.” – h/t charles!

Heroes of the Dark Enlightenment @radish magazine!

Liberal Race Realism – A Brief Definition – from robert lindsay – h/t hbd bibliography!

Fight Clubs: On Napoleon Chagnon“One anthropologist’s place in his field’s ongoing battle over questions of power, means and ends.”

A Brief History of Mental Illness in Art.

New ‘atheist map’ of the world dominated by China where half the country’s population describes themselves as non-believers

Syphilis, sex and fear: How the French disease conquered the world“Researching the Borgias, Sarah Dunant learnt how syphilis took Europe by storm during the 1490s, and the far reaching effects it’s had ever since.” – previously: stds and miiiind control.

bonus: Genuinely, unironically, shocked – from mr. mangan.

bonus bonus: Viruses and mucus team up to ward off bacteria“Phages may play unforeseen role in immune protection.”

bonus bonus bonus: Dog sniffs out grammar“A border collie takes command of sentence rules.”

bonus bonus bonus bonus: 2-Child Limit for Muslims in Parts of Myanmar – burmese eugenics.

bonus bonus bonus bonus bonus: The Multiple Origins of Wine Grapes

bonus bonus bonus bonus bonus bonus: What the heck is this strange red rectangle doing in our galaxy?

(note: comments do not require an email. ATTACK!)

Advertisements

random notes: 10/19/12

couple of notes that i want to jot down (so i don’t forget them!) that i thought some of you might like to read, too. also, a bleg or two. i’ll start with the blegging to get it out of the way…
_____

how quickly can a population become clannish via close mating (ithiw)?

consider the dutch woonwagenbewoners or “caravan dwellers.” these are a group of about 30,000 people in the netherlands who live (or lived up until recently) a gypsy-like existence, but who are not related to gypsies. if i’m reading the google translation of the dutch wikipedia article correctly, the woonwagenbewoners adopted their nomadic lifestyle around 1850 — six-ish generations ago(?) if we count a generation as twenty-five years in length.

nowadays there are reports of woonwagenbewoners engaging in family feuds — one woonwagenbewoner family versus another woonwagenbewoner family (original heregoogle translation):

“On the Joost de Momperstraat, a stone’s throw from the Doolplein, sometimes with nostalgia thought back to the good old days. It was very cozy in ‘camp’, almost a big family. That is quite different. Since the murder of an inmate two years ago, there is a feud between two families caravan, which has already resulted in wild shootings, assaults and threats. A family has moved to another place – after the father – but the sultry atmosphere remained.”

this doesn’t sound like a full-fledged “bloedwraak” (vendetta), but it does sound like the woonwagenbewoners (love that word!) aren’t opposed to a little feuding — which typically goes along with clannishness.

presumably the woonwagenbewoners have tended to marry amongst themselves down through the years (although i don’t know that for certain). my question is: did they start off from very outbred dutch populations, or more inbred ones? in other words, were they already clannish when they hit the road, or is that something that’s developed in the last 150 or so years?

we know, for instance, that some of the dutch population — in friesland and in coastal areas — wasn’t manorialized like the rest of the netherlands during the medieval period and so stuck to the old ways for longer, probably including close marriages, but definitely including clannishness and blood feuding.

so my bleg is: anybody know where the woonwagenbewoners came from? a particular region or regions of the netherlands perhaps? inquiring hbd chicks want to know! any info on this group would be appreciated. (^_^)

ithiw = if that’s how it works.
_____

i had a post up before showing that father’s brother’s daughter (fbd) marriage — the kind favored by arabs and other muslims in that area of the world — amounts to more inbreeding than other forms of cousin marriage because it, in effect, leads to more double-first cousin marriage. well, here’s another reason the whole system leads to greater inbreeding — from The Structure of Parallel Cousin Marriage i learn that, in a society where fbd marriage is very common, your maternal first cousins wind up also being your paternal second cousins. (i tried to figure this out before, but it made my head spin.) this is because the family lineages in fbd marriage societies fold back in on themselves [pg. 22]:

“Since Bedouin society is based largely upon ties of kinship, each minimal-sized agnatic unit becomes virtually self contained and encysted. This can be shown in diagram B, which illustrates the convergence of father’s and mother’s lines in an ideal system of patrilateral parallel cousin marriage. Even the sporadic occurence of cross-cousin marriage fails to break the social isolation of the group. Diagram C shows a cross-cousin marriage within a system structured primarily by parallel cousin marriage; it can be seen that the cross cousins indicated are also second degree patrilateral parallel cousins, and we would venture to hypothesize that the Bedouin would interpret the relation in the latter way.”

“encysted.” good word. maybe one of these days i’ll diagram this.
_____

from Human Trafficking: A Global Perspective, we learn that human trafficking operations out of the balkans (oh god — not the balkans again!) are typically extended family/clan operations … and their victims frequently members of rival clans [pgs. 121-22]:

Balkan traffickers operate within family groups. Therefore, although the organizations are controlled by men, there are cases in which operations in a particular country or region are controlled by female family members or by outsiders. For example, French police, through wiretaps, discovered that a sister of one of the French-based Balkan traffickers was operating a cell in Belgium. As the previous chapter pointed out, Balkan criminals maintain control across several neighboring countries. Belgian and Dutch women, as mentioned in Chapter 3, have been hired by Balkan clans to help run day-to-day operations because they arouse less police suspicion.”

and from earlier in this section:

“Female victims were often those whose families had died or women seized as part of blood revenge by one family against another.”

which brings me back to some of the points i made in this post.

aren’t people wonderful?
_____

(note: comments do not require an email. something cheery!)