Results 91 to 100 of about 1,160,707 (276)

An empirical analysis of the distribution of the duration of overshoots in a stationary gaussian stochastic process [PDF]

open access: yes
This analysis utilizes computer simulation and statistical estimation. Realizations of stationary gaussian stochastic processes with selected autocorrelation functions are computer simulated.
Carter, M. C., Parrish, R. S.
core   +1 more source

Scaling of geometric phases close to quantum phase transition in the XY chain

open access: yes, 2005
We show that geometric phase of the ground state in the XY model obeys scaling behavior in the vicinity of a quantum phase transition. In particular we find that geometric phase is non-analytical and its derivative with respect to the field strength ...
A. Bohm   +5 more
core   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Analysis of Failures of Automatic Level Crossing Devices

open access: yesEngineering Proceedings
The safety of automatic level crossing devices (ALDs) is of utmost importance due to the need to ensure safe passage through railway crossings—accidents must not be allowed.
Emiliya Dimitrova   +2 more
doaj   +1 more source

Preventing railway suicides through level crossing removal: a multiple-arm pre-post study design in Victoria, Australia. [PDF]

open access: yesSoc Psychiatry Psychiatr Epidemiol, 2022
Clapperton A   +4 more
europepmc   +1 more source

Field-induced level crossings in spin clusters: Thermodynamics and magneto-elastic instability

open access: yes, 2007
Quantum spin clusters with dominant antiferromagnetic Heisenberg exchange interactions typically exhibit a sequence of field-induced level crossings in the ground state as function of magnetic field.
A. Abragam   +15 more
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

Modelling of Signal - Level Crossing System

open access: yesAdvances in Electrical and Electronic Engineering, 2006
The author presents an object-oriented model of a railway level-crossing system created for the purpose of functional requirements specification. Unified Modelling Language (UML), version 1.4, which enables specification, visualisation, construction and ...
Daniel Novak
doaj  

Magnetocaloric effect as a signature of quantum level-crossing for a spin-gapped system

open access: yes, 2019
Recent research dealing with magnetocaloric effect (MCE) study of antiferromagnetic (AFM) low dimensional spin systems have revealed a number of fascinating ground-state crossover characteristics upon application of external magnetic field.
Chakraborty, Tanmoy, Mitra, Chiranjib
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

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