Results 81 to 90 of about 12,925,480 (292)

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

The Relative Weakness of Serfdom and Lordship in Later Medieval England: The Example of Bredfield (Suffolk)

open access: yesJahrbuch für Wirtschaftsgeschichte
Historians dispute the nature of medieval English serfdom. For some, it represents one of the most powerful and pervasive systems of serfdom in medieval Europe, highly extractive of peasant surpluses: consequently, only concerted peasant resistance in ...
Bailey Mark
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Fricción y desgaste en elementos circulares empleados en pasadores // Friction and waste in elements circular employees in pins.

open access: yesIngeniería Mecánica, 2009
El presente trabajo tiene como objetivo establecer el comportamiento de los pasadores fabricadosde acero 45 empleados en las esteras de los equipos de laboreo minero, los cuales por su condiciónde trabajo, se desgastan prematuramente producto de la ...
D. Alcántara-Borges   +2 more
doaj  

Indebted Abbots: The Impact of Lordly Demand on the Late Medieval Rural Economy in Northeast Scotland

open access: yesJahrbuch für Wirtschaftsgeschichte
Scottish historiography often describes late medieval Scotland as experiencing socio-economic stagnation while at the same time witnessing a shift from feudal to post-feudal lordship. This paper reevaluates that interpretation through a case study of the
Weil Sebastian
doaj   +1 more source

Coherent surface plasmon amplification through the dissipative instability of 2D direct current

open access: yesNanophotonics, 2018
We propose an original concept for on-chip excitation and amplification of surface plasmon polaritons. Our approach, named nanoresotron, utilizes the collective effect of dissipative instability of a 2D direct current flowing in vicinity of a metal ...
Smetanin Igor V.   +2 more
doaj   +1 more source

Study of neutron-rich calcium isotopes with a realistic shell-model interaction

open access: yes, 2009
We have studied neutron-rich calcium isotopes in terms of the shell model employing a realistic effective interaction derived from the CD-Bonn nucleon-nucleon potential.
A. Covello   +4 more
core   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Conformal Partial Wave Expansions for N=4 Chiral Four Point Functions

open access: yes, 2004
The conformal partial wave analysis of four point functions of half BPS operators belonging to the SU(4) [0,p,0] representation is undertaken for p=2,3,4.
Arutyunov   +41 more
core   +1 more source

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