Results 71 to 80 of about 3,917,551 (300)

Correlation clustering [PDF]

The 43rd Annual IEEE Symposium on Foundations of Computer Science, 2002. Proceedings., 2003
We consider the following clustering problem: we have a complete graph on n vertices (items), where each edge (u, v) is labeled either + or – depending on whether u and v have been deemed to be similar or different. The goal is to produce a partition of the vertices (a clustering) that agrees as much as possible with the edge labels. That is, we want a
Bansal, N., Blum, A., Chawla, S.
openaire   +3 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Towards minimal self-testing of qubit states and measurements in prepare-and-measure scenarios

New Journal of Physics
Self-testing is a promising approach to certifying quantum states or measurements. Originally, it relied solely on the outcome statistics of the measurements involved in a device-independent (DI) setup.
Gábor Drótos, Károly F Pál, Abdelmalek Taoutioui, Tamás Vértesi   +3 more
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Pressure-dependent magnetism of the Kitaev candidate Li2RhO3

npj Quantum Materials
We use magnetization measurements under pressure along with ab initio and cluster many-body calculations to investigate magnetism of the Kitaev candidate Li2RhO3.
Bin Shen, Efrain Insuasti Pazmino, Ramesh Dhakal, Friedrich Freund, Philipp Gegenwart, Stephen M. Winter, Alexander A. Tsirlin   +6 more
doaj   +1 more source

Perfect correlations between noncommuting observables

, 2003
The problem as to when two noncommuting observables are considered to have the same value arises commonly, but shows a nontrivial difficulty. Here, an answer is given by establishing the notion of perfect correlations between noncommuting observables ...
Braginsky, Busch, Busch, Masanao Ozawa, Nielsen, Ozawa, Ozawa, Ozawa, Ozawa, Ozawa, Peres, von Neumann, Wigner   +12 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Electronic correlations in organometallic complexes

, 2011
We investigate an effective model for organometallic complexes (with potential uses in optoelectronic devices) via both exact diagonalisation and the configuration interaction singles (CIS) approximation.
A.C. Jacko, B.J. Powell, Baccouche, Bersuker, Bomben, Brocks, Butschke, Cano-Cortés, Cicoira, Dagotto, Fetter, Foresman, Forrest, Fulde, Gawelda, Ghosh, Gunnarsson, Hagfeldt, Haneder, Hay, Heeger, Hewson, Hochstrasser, Hofbeck, Jacko, Jacko, Jacko, Jacobsen, Kober, Kober, Kotliar, Kouwenhoven, LaBute, LaBute, Li, Lo, Mendes, Namdas, Obara, Powell, Rusanova, Schofield, Scriven, Scriven, Smith, Su, Wilson   +46 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source