Results 131 to 140 of about 792,879 (315)

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Communication Between Khepera Mini Robots For Cooperative Positioning

, 2003
Grünewald M, Iske B, Klahold J, et al. Communication Between Khepera Mini Robots For Cooperative Positioning. In: Proceedings of the International Conference Automatics and Informatics’03. Vol 1.
Manolov, Ognyan, Klahold, Jürgen, Orhan, Orhan, Grünewald, Matthias, Iske, Burkhard, Rückert, Ulrich, Witkowski, Ulf   +6 more
core  

An Improved UWB Indoor Positioning Approach for UAVs Based on the Dual-Anchor Model

Ultra-wideband (UWB) technology has been widely used for indoor positioning of UAVs due to its excellent range performance. The traditional UWB positioning system requires at least three anchors to complete 3D positioning.
Zhengrong Xiang, Lei Chen, Qiqi Wu, Jianfeng Yang, Xisheng Dai, Xianming Xie   +5 more
core   +1 more source

Reprocessing of three-decade GNSS observations: millimeter-level nonlinear terrestrial reference frame, global velocity field and plate motion model refinement

Geo-spatial Information Science
The Terrestrial Reference Frame (TRF) is essential for solid Earth research, including geodesy and geodynamics, providing a unified spatiotemporal datum.
Hu Wang, Yingying Ren, Ming Chen, Yamin Dang, Jing Jiao, Qiang Yang, Jiexian Wang   +6 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Strategic Positioning for the University of Minnesota

, 2004
Presentation in PowerPoint format giving a top-level perspective on Strategic Positioning, especially the public phases of the effort. Presentation was designed for "town hall" discussion events.Articulate our vision of the University Articulate our ...
University of Minnesota: Administrative Strategic Positioning Task Force
core  

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Zero-Baseline Measurements for Relative Positioning in Vehicular Environments

, 2013
Forward collision warning systems, lane change assistants or cooperative adaptive cruise control are examples of safety relevant applications that rely on accurate relative positioning between vehicles.
Strang, Thomas, De Ponte Müller, Fabian, Steingass, Alexander   +2 more
core  

CHULA: Custom Heuristic Uncertainty-Guided Loss for Accurate Land Title Deed Segmentation

IEEE Access
Accurately segmenting land boundaries from Thai land title deeds is crucial for reliable land management and legal processes, but remains challenging due to low-quality scans, diverse layouts, and complex overlapping elements in documents.
Teerapong Panboonyuen, Chaiyut Charoenphon, Chalermchon Satirapod   +2 more
doaj   +1 more source