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Human cells can change job to fight diabetes
15 Febbraio 2019

For the first time, researchers have shown that ordinary human...

L’ORIGINE DEI SICULI
15 Febbraio 2019

(Clamorose scoperte sull’età del bronzo siciliano: quasi tutti gli abitanti...

Malattie neurodegenerative: svelato il ruolo degli RNA negli aggregati tossici di proteine
15 Febbraio 2019

Il risultato, pubblicato sulla rivista Cell Reports, rivela che specifici...

La "danza nuziale" di cavallucci marini è in pericolo
13 Febbraio 2019

Prima dell’accoppiamento sembra si corteggino per giorni e che al...

Scoperta nell’isola di Stromboli l’origine di tre grandi tsunami di epoca medievale
13 Febbraio 2019

La ricerca condotta da vulcanologi e archeologi delle Università di...

Il rischio obesità si individua già a dieci anni: sono i bambini con un metabolismo “risparmiatore”
08 Febbraio 2019

Lo studio dell’Università di Pisa e del National Institute of...

L’essere vivente più grande al mondo
08 Febbraio 2019

L’essere vivente più grande della Terra si trova in Oregon,...

La microplastica nel sale da cucina, Greenpeace: “Più del 90 per cento dei campioni contaminato”
06 Febbraio 2019

Ben 36 dei 39 campioni di sale da cucina analizzati,...

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Scienzaonline

 

Prehistoric human skeleton in the Chan Hol Cave near Tulúm on the Yucatán peninsula prior to looting by unknown cave divers. Picture: Tom Poole, Liquid Jungle Lab 

 

Heidelberg researchers date prehistoric skeleton found in a cave in Yucatán

A prehistoric human skeleton found on the Yucatán Peninsula is at least 13,000 years old and most likely dates from a glacial period at the end of the most recent ice age, the late Pleistocene. A German-Mexican team of researchers led by Prof. Dr Wolfgang Stinnesbeck and Arturo González González has now dated the fossil skeleton based on a stalagmite that grew on the hip bone. “The bones from the Chan Hol Cave near the city of Tulúm discovered five years ago represent one of the oldest finds of human bones on the American continent and are evidence of an unexpectedly early settlement in Southern Mexico,” says Prof. Stinnesbeck, who is an earth scientist at Heidelberg University. The research findings have now been published in PLOS ONE.

Pubblicato in Scienceonline
Lunedì, 04 Settembre 2017 13:23

Asthma Medicine Halves Risk of Parkinson's

 

 

* By studying the effect of 1000 medicines, researchers discovered that medicine against asthma and blood pressure is linked to the risk of getting Parkinson´s disease.

* While the use of asthma medicine halves the risk of getting Parkinson's, one type of medicine against high blood pressure doubles the risk.

* The researchers examined more than 100 million prescriptions ordered over the last 11 years in Norway.

* These discoveries could be the start of a radically new treatment of Parkinson's patients.

Parkinson´s disease is a chronic disease with unknown causes. The disease destroys the brain cells that control body movements. Shivering, stiff arms and legs and poor coordination are typical symptoms of Parkinson's. The symptoms may develop slowly, and it sometimes takes time to make a correct diagnosis. Researchers at the Department of Global Public Health and Primary Care (IGS) at the University of Bergen (UiB) have completed a large study that included data from the Norwegian Prescription Database, in cooperation with researchers at Harvard University.

Pubblicato in Scienceonline

 

A team of biologists has found an unexpected source for the brain's development, a finding that offers new insights into the building of the nervous system. The research, which appears in the journal Science, discovered that glia, a collection of non-neuronal cells that had long been regarded as passive support cells, in fact are vital to nerve-cell development in the brain. "The results lead us to revise the often neuro-centric view of brain development to now appreciate the contributions for non-neuronal cells such as glia," explains Vilaiwan Fernandes, a postdoctoral fellow in New York University's Department of Biology and the study's lead author. "Indeed, our study found that fundamental questions in brain development with regard to the timing, identity, and coordination of nerve cell birth can only be understood when the glial contribution is accounted for." The brain is made up of two broad cell types, nerve cells or neurons and glia, which are non-nerve cells that make up more than half the volume of the brain. Neurobiologists have tended to focus on the former because these are the cells that form networks that process information.

Pubblicato in Scienceonline

 

 

Climate warming reduces the number of plant species in the tundra, but plant-eating animals, such as reindeer and voles, can turn this negative effect into something positive. The results of a study coordinated from Umeå University in Sweden are now published in Nature Communications. “By eating tall and wide-leaved plants, reindeer can increase light availability and thus allow more plant species to co-exist and benefit from warmer conditions,” says Elina Kaarlejärvi, post-doctoral researcher at Umeå University, who led the study. Earlier studies suggest that tundra plant diversity will decrease in response to a warmer climate. However, it is important to know whether the response depends on the abundance of grazing animals, particularly reindeer, voles and lemmings, which are very common in tundra ecosystems. Researchers at Umeå University in Sweden, and Oulu University in Finland, tested this through experimental warming of vegetation on tundra meadows with and without reindeer and voles.

Pubblicato in Scienceonline

Medicina

Malattie neurodegenerative: svelato il ruolo degli RNA negli aggregati tossici di proteine

Malattie neurodegenerative: svelato il ruolo degli RNA negli aggregati tossici di proteine

15 Febbraio 2019

Il risultato, pubblicato sulla rivista Cell Reports, rivela che specifici...

Paleontologia

L’ORIGINE DEI SICULI

L’ORIGINE DEI SICULI

15 Febbraio 2019

(Clamorose scoperte sull’età del bronzo siciliano: quasi tutti gli abitanti della Sicilia di quel...

Geografia e Storia

Scoperta nell’isola di Stromboli l’origine di tre grandi tsunami di epoca medievale

Scoperta nell’isola di Stromboli l’origine di tre grandi tsunami di epoca medievale

13 Febbraio 2019

La ricerca condotta da vulcanologi e archeologi delle Università di Pisa e Modena-Reggio Emilia...

Astronomia e Spazio

Scienze Naturali e Ambiente

La "danza nuziale" di cavallucci marini è in pericolo

La "danza nuziale" di cavallucci marini è in pericolo

13 Febbraio 2019

Prima dell’accoppiamento sembra si corteggino per giorni e che al risveglio...

 

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telematica quotidiana 229/2006 del 08/06/2006
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Scienceonline, Autorizzazione del Tribunale di Roma 228/2006 del 29/05/06
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