Results 61 to 70 of about 1,069,438 (262)

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

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

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Dynamic nonlocal metasurface for multifunctional integration via phase-change materials

Nanophotonics
Non-local metasurface supporting geometric phases at bound states in the continuum (BIC) simultaneously enables sharp spectral resonances and spatial wavefront shaping, thus providing a diversified optical platform for multifunctional devices. However, a
Yu Shilin, Xu Mingfeng, Pu Mingbo, Tang Xi, Zheng Yuhan, Guo Yinghui, Zhang Fei, Li Xiong, Ma Xiaoliang, Luo Xiangang   +9 more
doaj   +1 more source

Rotary Surface Object Manipulation by Multifingered Robot Hand [PDF]

, 2012
Li Q, Haschke R, Ritter H, Bolder B. Rotary Surface Object Manipulation by Multifingered Robot Hand. Presented at the 7th German Conference on Robotics, Munich, Germany.We propose a simple but efficient control strategy to manipulate objects of unknown ...
Bolder, Bram, Ritter, Helge ; https://orcid.org/, Haschke, Robert ; https://orcid.org/, Li, Qiang ; https://orcid.org/   +3 more
core  

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

Object Dexterous Manipulation in Hand Based on Finite State Machine [PDF]

, 2012
Li Q, Meier M, Haschke R, Ritter H, Bolder B. Object Dexterous Manipulation in Hand Based on Finite State Machine. In: Proc. ICMA2012.
Bolder, Bram, Meier, Martin, Ritter, Helge ; https://orcid.org/, Haschke, Robert ; https://orcid.org/, Li, Qiang ; https://orcid.org/   +4 more
core  

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Grasp Point Optimization for Unknown Object Manipulation in Hand Task [PDF]

, 2012
Li Q, Haschke R, Bolder B, Ritter H. Grasp Point Optimization for Unknown Object Manipulation in Hand Task.
Bolder, Bram, Ritter, Helge ; https://orcid.org/, Haschke, Robert ; https://orcid.org/, Li, Qiang ; https://orcid.org/   +3 more
core  

The ubiquitin system in normal and infected germinal center B cells

FEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis, Lesly Mejia, Emily K Moser   +2 more
wiley   +1 more source