Results 41 to 50 of about 1,356,633 (296)

The Quantum Configuration Space of Loop Quantum Cosmology

, 2007
The article gives an account of several aspects of the space known as the Bohr compactification of the line, featuring as the quantum configuration space in loop quantum cosmology, as well as of the corresponding configuration space realization of the so-
Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Bojowald M, Bojowald M Cartin D Khanna G, Corichi A Vukašinac T Zapata J A, J M Velhinho, Martins J, Rudin W, Thiemann T, Thiemann T, Velhinho J M   +16 more
core   +1 more source

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

Architecture and Knowledge-Driven Self-Adaptive Security in Smart Space

Computers, 2013
Dynamic and heterogeneous smart spaces cause challenges for security because it is impossible to anticipate all the possible changes at design-time. Self-adaptive security is an applicable solution for this challenge. This paper presents an architectural
Antti Evesti, Jani Suomalainen, Eila Ovaska   +2 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

A paradox of epidemics between the state and parameter spaces

Scientific Reports, 2018
It is recently revealed from amounts of real data of recurrent epidemics that there is a phenomenon of hysteresis loop in the state space. To understand it, an indirect investigation from the parameter space has been given to qualitatively explain its ...
Hengcong Liu, Muhua Zheng, Zonghua Liu
doaj   +1 more source

Index Theorems and Loop Space Geometry

, 1992
We investigate the evaluation of the Dirac index using symplectic geometry in the loop space of the corresponding supersymmetric quantum mechanical model.
A. Hietamäki, Antti J. Niemi, Atiyah, Atiyah, Bismut, Bismut, Blau, Bott, Callias, Duistermaat, Fradkin, Hietamäki, Imbimbo, Keski-Vakkuri, Morozov, Morozov, Nicolai, Nicolai, Niemi, Niemi, Niemi   +20 more
core   +2 more sources

Loop space, (2,0) theory, and solitonic strings [PDF]

, 2006
We present an interacting action that lives in loop space, and we argue that this is a generalization of the theory for a free tensor multiplet. From this action we derive the Bogomolnyi equation corresponding to solitonic strings. Using the Hopf map, we
A. Gustavsson, A. Gustavsson, Andreas Gustavsson, E. Witten, K.A. Intriligator, M. Henningson, N.J. Hitchin, P.A.M. Dirac, R. Bott, U. Schreiber   +9 more
core   +6 more sources

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

Space Maintainers in Dentistry: Past to Present [PDF]

Journal of Clinical and Diagnostic Research, 2013
Early orthodontic interventions are often initiated in the developing dentition to promote favourable developmental changes. Interceptive orthodontic can eliminate or reduce the severity of a developing malocclusion, the complexity of orthodontic ...
Vikas Setia, Inder Kumar Pandit, Nikhil Srivastava, Neeraj Gugnani, Harveen Kaur Sekhon   +4 more
doaj   +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