#osteo — Public Fediverse posts

Si des recherches supplémentaires sont néanmoins lancées, elles devraient être menées avec une qualité méthodologique améliorée en enregistrant le protocole de manière prospective, en effectuant une répartition aléatoire adéquate, en garantissant que les participants et les examinateurs sont en aveugle et en incluant des mesures objectives des résultats".

#kiné #ostéo #santé

#おきみゅー #osteo
first question about why Neandertal disappeared. huhu. (and we don't know why)
second question about the fact Neandertal has a lot of archaic traits in his skull while Modern Humans haven't. (and we don't know why)
third question about the first discovery of Neandertal and the racism that underlined it.
this ends the seminar.

#おきみゅー #osteo
we arrived at the point we discovered Neandertal and Modern Humans have cohabited, so Modern Humans are not descended from Neandertal.
the reason of the disparition of Neandertal is still not understood.
so… (this is his opinion, all right ?) Neandertal mimicked Modern Humans when they buried their deads and they are not able of abstract art. Modern Humans managed to go to very cold places and cross the oceans while Neandertal couldn't.

#おきみゅー #osteo
the shapes of Neandertals and Modern Humans skulls differ. we have far more beautiful cranial sutures (that's not what he says, that's a personal opinion)
Neandertal was found in Europe, Near East central Asia and Russia. Not in North Europe (because Glacial Era, not a very nice place to survive)
Neandertal people use their teeth differently, the wear is important, showing they probably used their teeth as tools as well.

#おきみゅー #osteo
third talk by Takashi Nara, who starts by showing us Neandertal and Cro-Magnon skulls.
Neandertal bones have been found in large quantity and thus have been widely studied. we're reviewing the studies about Neandertal since the very first discovery…
oh, and the discovery of Cro-Magnon as well…
(sorry, i suppose that's very interesting for people who haven't gone to primary school in france)

#おきみゅー #osteo
first question about the ryukyu dog, which is genetically close to the jomon dog.
second question about C14 datation, not about dogs…
third questions about dog burials, that increase with time, but are present even in the oldest periods of jomon. it is possible that the bones found dispersed are former burials that were disturbed by more recent occupations of the same site.
fourth question, the jomon dogs show very little evolution during the whole length of the jomon period.

#おきみゅー #osteo
C3/C4 studies show that dogs ate the same things as the humans of the same area.

#おきみゅー #osteo
some dog bones have cut marks.
many have several of their teeth that lack, possibly because they were wearing something to prevent them from eating the preys.
some bones show fractures and would not have been able to hunt but were kept as well.
ho, another Japan map without Okinawa, those researchers have no delicacy… it's to show that dogs are systematically found in areas with wild boars. we have wild boars, by the way. in case someone wants to make another map including Okinawa

#おきみゅー #osteo
in fact everyone is fighting about the origins of domestic dogs. some people even say that the japanese wolf is the ancestor of all domestic dogs. in the world. genetically the jomon dog separates really early from the other asian (prehistoric) dogs.
haplotype M5 is only found in the east, while M2 is found in the west and the east (and the modern dogs are M1, no relationat all). this haplotype distribution is also found in human genome.

#おきみゅー #osteo
jomon dogs are found in tombs (their own tombs, not with humans) and as dispersed bones in archaeological sites : dogs were not always burried.
the jomon dogs were between 35 and 50 cm high, which is smaller than most of current 「traditional」japanese dogs. the closest would be the shiba inu, but that's still quite different. they are very different from japanese wolves too : the jomon dogs are not domesticated japanese wolves (＝came from outside)

#おきみゅー #osteo
(well it does not explain why the animal bones are conserved, then…)
second question : why are the size of the osteons different according to the species.
answer : it mainly varies with the size of the animal but humans have large osteons for their size and that's quite a mystery.
ah, somebody noticed his answer to the first question was fishy.
and someone wants him to make an app that gives you the name of the animal when you take a pic of a bone. i want this too !

#おきみゅー #osteo the recent excavations show that most of the animals found in anthropic contexts are small to mediun sized mammals, not large mammals such as the neuman elephant that is always shown being hunt in school books.
first question : if there are so much animal bones from the palaeolitic in japan, why don't you have human bones ?
answer : because the geological conditions are not as good as in okinawa and the bones are not conserved.

#おきみゅー #osteo
analyses of burnt bones from kashiwadai 1 site (hokkaido), less than 1 cm large, have shown by the characteristics of their osteons that they probably were deer bones.
the guy shows us a map with 「all the palaeolithic sites of japan 」that stops at kyushu. that often happens on the national telly but that's quite a lack of tact to show such a map in okinawa…

#おきみゅー #osteo
so, the number of osteons increases with age. the size (diameter) of the haversian canals (for the blood vessels) increases with age too. the bone remodelling (creation of new osteons) is also linked to hormones (that's why old females have porous bones) (mostly). people who move a lot also have more osteons than people who stay still. the shape and size of osteons varies with animal species. which is useful when you only have small un-identifiable bone bits on a site.

#おきみゅー #osteo
bones started has a mere mean to stock calcium and they still have this function in addition to the other ones that were added afterwards. calcium is stocked in bones and afterwards taken from the bones to be used by other organs. when calcium is taken, it makes a hole in the bone, that is filled afterwards, given birth to a new osteon.

the first talk by Junmei Sawada. he says from the very beginning that there won't be anything okinawan, it's just that a seminar that is generally held in Japan is held this time in Okinawa, hence the name… he'll talk about bone micro-structure. bones have sponge bone and compact bone parts. the micro-structure of human compact bone shows osteons and blood vessels.
#おきみゅー #osteo

(possibly everyone noticed it would not be about #okinawa but me, because there are empty seats, which never happens for conferences about okinawan archaeology/history)
#おきみゅー #osteo

#おきみゅー #osteo
the seminar title says 「okinawa version」though. i think i've been lured into a perfectly general osteology seminar for lay people… well, you never have enough osteology in your life…

#おきみゅー #osteo
there are 3 talks today, the first by Junmei Sawada about what the micro-analyses of archaeological bones can teach us, the second by Takao Sato about prehistoric dogs and the third by Takashi Nara about the disparition of Neandertal and modern humans.
seems there won't be much said about the prehistoric remains found in Okinawa-Sakishima…

i'll be live-tooting (in English) the osteology seminar at the #Okinawa Prefectural Museum this afternoon. hashtags #おきみゅー and #osteo
Only (mainland) Japanese scholars are invited so i'm a little afraid they will bend the facts to fit pro-japanese theories but i don't want to start complaining before i hear them 😉
https://okimu.jp/sp/event/1679809816/

Favourite news article of the day :-D

"A pile of human bones reported to police turned out to be a toy model of Captain Hook - complete with his trusty pet parrot and a hook for a hand."

#archaeology #histodons #osteo #forensics

https://www.bbc.co.uk/news/uk-england-derbyshire-65201349

#ActuLibre La version 0.6 de Libreosteo est sortie -> https://linuxfr.org/news/la-version-0-6-de-libreosteo-est-sortie #osteopathie #Médecine #python #django #osteo #gplv3