Results 51 to 60 of about 4,099,910 (388)

Pulsed Interleaved Excitation [PDF]

open access: yesBiophysical Journal, 2005
In this article, we demonstrate the new method of pulsed interleaved excitation (PIE), which can be used to extend the capabilities of multiple-color fluorescence imaging, fluorescence cross-correlation spectroscopy (FCCS), and single-pair fluorescence resonance energy transfer (spFRET) measurements.
Müller, B.   +3 more
openaire   +3 more sources

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

Speciesism, Subjectivity, and Becoming-Other in Michel Faber’s Novel Under the Skin

open access: yesPulse, 2023
This paper undertakes a critical analysis of Michel Faber’s novel, Under the Skin (2000), with the aim to explore ethical relations between different species.
Iana Fishova
doaj   +1 more source

Analysis of magnetically-controlled processes in pulse-modulation systems [PDF]

open access: yes, 1969
Investigation established analytic expressions for the design of pulse modulators with modulating signal control of the reset level of flux in a nonlinear magnetic core.
Veillette, L. J.
core   +1 more source

Parametric Frequency Conversion of Short Optical Pulses Controlled by a CW Background [PDF]

open access: yes, 2007
We predict that parametric sum-frequency generation of an ultra-short pulse may result from the mixing of an ultra-short optical pulse with a quasi-continuous wave control.
Baronio, Fabio   +3 more
core   +4 more sources

Divided-pulse lasers [PDF]

open access: yesOptics Letters, 2014
We demonstrate the use of coherent division and recombination of the pulse within an ultrafast laser cavity to manage the nonlinear phase accumulation and scale the output pulse energy. We implement the divided-pulse technique in an ytterbium-doped fiber laser and achieve 16 times scaling of the pulse energy, to generate 6 nJ and 1.4 ps solitons in ...
Erin S, Lamb   +2 more
openaire   +2 more sources

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

Real-space observation of the dissociation of a transition metal complex and its concurrent energy redistribution

open access: yesNature Communications
Mechanistic insights into photodissociation dynamics of transition metal carbonyls, like Fe(CO)5, are fundamental for understanding active catalytic intermediates.
Aviad Schori   +25 more
doaj   +1 more source

(AI)sland Ecologies: Toward New Metaphors and Models of Artificial Intelligence

open access: yesPulse, 2023
This article examines the application of ecological metaphors to socio-technical systems. This is a long and contested tradition that has often been critiqued for misapplying biological principles to the understanding of socio-technical systems.
Rhea Jiang
doaj   +1 more source

Superluminal optical pulse propagation in nonlinear coherent media [PDF]

open access: yes, 2002
The propagation of light-pulse with negative group-velocity in a nonlinear medium is studied theoretically. We show that the necessary conditions for these effects to be observable are realized in a three-level $\Lambda$-system interacting with a ...
A. Dogariu   +31 more
core   +2 more sources

Home - About - Disclaimer - Privacy