نتایج جستجو برای: mota

تعداد نتایج: 497  

Journal: :Journal of Materials Research 2022

Abstract For decades, nanoindentation has been used for measuring mechanical properties of films with the widely assumption that if indentation depth does not exceed 10% film thickness, substrate influence is negligible. The rule was originally deduced much thicker metallic on steel substrates and involved only hardness measurement. Thus, boundaries usability thin elastic modulus may differ. Tw...

Journal: :Science 2015
M Gallego Llorente E R Jones A Eriksson V Siska K W Arthur J W Arthur M C Curtis J T Stock M Coltorti P Pieruccini S Stretton F Brock T Higham Y Park M Hofreiter D G Bradley J Bhak R Pinhasi A Manica

Characterizing genetic diversity in Africa is a crucial step for most analyses reconstructing the evolutionary history of anatomically modern humans. However, historic migrations from Eurasia into Africa have affected many contemporary populations, confounding inferences. Here, we present a 12.5× coverage ancient genome of an Ethiopian male ("Mota") who lived approximately 4500 years ago. We us...

Journal: :Journal of molecular biology 2009
Collin M Dyer Armand S Vartanian Hongjun Zhou Frederick W Dahlquist

The high-resolution structures of nearly all the proteins that comprise the bacterial flagellar motor switch complex have been solved; yet a clear picture of the switching mechanism has not emerged. Here, we used NMR to characterize the interaction modes and solution properties of a number of these proteins, including several soluble fragments of the flagellar motor proteins FliM and FliG, and ...

Journal: :EMBO reports 2015
Alexis Kaushansky Stefan H I Kappe

After transmission by Anopheles mosquitoes, malaria parasite sporozoites target the liver, where they infect hepatocytes and multiply thousands of times. The release of new parasites into the blood stream then initiates symptomatic red blood cell infection. Although successful replication within hepatocytes is critical for host infection, little is known about parasite–hepatocyte interactions t...

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