Results 51 to 60 of about 345,999 (291)

Low-cost optical manipulation using hanging droplets of PDMS [PDF]

, 2015
We propose and demonstrate a low-cost optical micromanipulation system that makes use of simple microfrabricated components coupled to a smartphone camera for imaging. Layering hanging droplets of polydimethylsiloxane (PDMS) on microscope coverslips, and
Ashkin, Baden, Bellina, Breslauer, Budde, Burnham, Chowdhury, Erickson, Fei, Gambin, Hofmann, Jeong, Lee, Mao, Pralle, Ren, Skandarajah, Smith, Svoboda, Tadmor, Wilbur   +20 more
core   +3 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Non-Line-of-Sight Target Tracking With a Single Time Multiplexed Channel

IEEE Photonics Journal
Here we propose a non-line-of-sight (NLOS) tracking scheme using only one single-pixel single-photon channel. It is demonstrated that sending multiple beams with proper time delay enables multiplexing of multi-echoes of the hidden object in the single ...
Xianmin Zheng, Tailin Li, Ke Ding, Yihan Luo   +3 more
doaj   +1 more source

Coherent manipulation of spin wave vector for polarization of photons in an atomic ensemble

, 2011
We experimentally demonstrate the manipulation of two-orthogonal components of a spin wave in an atomic ensemble. Based on Raman two-photon transition and Larmor spin precession induced by magnetic field pulses, the coherent rotations between the two ...
Li, Shujing, Peng, Kunchi, Wang, Hai, Wu, Yuelong, Xie, Changde, Xu, Zhongxiao, Zhao, Xingbo, Zheng, Haiyan   +7 more
core   +1 more source

Loss-tolerant operations in parity-code linear optics quantum computing [PDF]

, 2007
A heavy focus for optical quantum computing is the introduction of error-correction, and the minimisation of resource requirements. We detail a complete encoding and manipulation scheme designed for linear optics quantum computing, incorporating scalable
A. Gilchrist, A. J. F. Hayes, A. J. F. Hayes, M. A. Nielsen, P. Kok, T. C. Ralph   +5 more
core   +2 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Nonlinear Polarization Manipulation in Optical Fibers [PDF]

Frontiers in Optics 2015, 2015
We describe a phenomenon of self-organization of the light state-of-polarization in optical fibers based on a nonlinear cross-polarization interaction between an incident signal and its backward replica. Several proof-of-principles for telecom applications are reported.
Bony, Pierre Yves, GUASONI, Massimiliano, Gilles, Marin, Picozzi, Antonio, Pitois, Stéphane, Millot, Guy, WABNITZ, Stefan, Fatome, Julien   +7 more
openaire   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Longitudinally continuous varying high-order cylindrical vector fields enabled by spin-decoupled metasurfaces

Nanophotonics
The manipulation of vector optical fields in three-dimensional (3D) space plays a vital role in both fundamental research and practical implementations of polarization optics.
He Xinye, Bao Hanlin, Zhang Fei, Kang Tongtong, Pu Mingbo, Chen Yan, Guo Yinghui, Gong Jintao, Xu Mingfeng, Luo Xiangang   +9 more
doaj   +1 more source

Low Altitude UAV Detection in Complex Contexts

IEEE Access
With the rapid development of drone technology and its widespread application in various fields, low-altitude drone detection has become an important technological approach for ensuring public safety and implementing effective supervision.
Zhengwei Tang, Wen Lu, Weihua Tang, Dong He, Yongmei Huang, Qiang Wang   +5 more
doaj   +1 more source