Results 91 to 100 of about 8,178,562 (344)

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

open access: yesFEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

More and better information to tackle HIV epidemics: towards improved HIV incidence assays. [PDF]

open access: yesPLoS Medicine, 2011
Incidence Assay Critical Path Working Group
doaj   +1 more source

The effects of normovolemic anemia and blood transfusion on cerebral microcirculation after severe head injury

open access: yesIntensive Care Medicine Experimental, 2018
Background Cerebral regional microcirculation is altered following severe head injury. In addition to tissue disruption, partial pressure of tissue oxygenation is impaired due to an increase in the oxygen tissue gradient.
Judith Bellapart   +10 more
doaj   +1 more source

Strong disorder fixed point in absorbing state phase transitions

open access: yes, 2003
The effect of quenched disorder on non-equilibrium phase transitions in the directed percolation universality class is studied by a strong disorder renormalization group approach and by density matrix renormalization group calculations.
A. G. Moreira   +16 more
core   +1 more source

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Existence of two nontrivial solutions for semilinear elliptic problems

open access: yesElectronic Journal of Differential Equations, 2006
This paper concerns the existence of multiple nontrivial solutions for some nonlinear problems. The first nontrivial solution is found using a minimax method, and the second by computing the Leray-Schauder index and the critical group near 0.
Abdel R. El Amrouss   +2 more
doaj  

Monte Carlo analysis of critical phenomenon of the Ising model on memory stabilizer structures

open access: yes, 2009
We calculate the critical temperature of the Ising model on a set of graphs representing a concatenated three-bit error-correction code. The graphs are derived from the stabilizer formalism used in quantum error correction.
C. Ricardo Viteri   +5 more
core   +1 more source

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