Results 41 to 50 of about 2,403,076 (339)

Wave function of the Universe in the early stage of its evolution

, 2008
In quantum cosmological models, constructed in the framework of Friedmann-Robertson-Walker metrics, a nucleation of the Universe with its further expansion is described as a tunneling transition through an effective barrier between regions with small and
A. Linde, A. Vilenkin, A. Vilenkin, A. Vilenkin, A. Vilenkin, A. Vilenkin, A.D. Linde, B.S. DeWitt, D. Atkatz, D. Levkov, J. Acacio de Barros, J. Ambjorn, J.A. Wheeler, J.B. Hartle, L.D. Landau, M. Abramowitza, M. Trodden, P.I. Fomin, R.H. Brandenberger, S. Weinberg, Sergei P. Maydanyuk, V.A. Rubakov, V.A. Rubakov, V.E. Kuzmichev, V.V. Kuzmichev, Ya.B. Zel’dovich   +25 more
core   +1 more source

The Wave Function of Vasiliev's Universe - A Few Slices Thereof [PDF]

, 2012
We study the partition function of the free Sp(N) conformal field theory recently conjectured to be dual to asymptotically de Sitter higher-spin gravity in four-dimensions.
Daniel Harlow, Dionysios Anninos, E. Witten, Frederik Denef, L. Susskind, M. A. Vasiliev   +5 more
core   +2 more sources

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Implementation of Classic Image Transformation Algorithm to Quantum State, Boundary Extraction and Transformation of Half-Tone Image to Binary

Cybernetics and Information Technologies, 2020
The aim of the research is computer simulation of a quantum algorithm to solve the problem of transforming a classical image using quantum computing tools and methods, studying recognition algorithms and creating a recognition model using quantum methods.
Gushanskiy Sergey, Potapov Viktor, Madrigal Omar Correa   +2 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Molecular characterisation of human penile carcinoma and generation of paired epithelial primary cell lines

Molecular Oncology, EarlyView.
Generation of two normal and tumour (cancerous) paired human cell lines using an established tissue culture technique and their characterisation is described. Cell lines were characterised at cellular, protein, chromosome and gene expression levels and for HPV status.
Simon Broad, Mahmood Hachim, Tom Bertin, Karolina Penderecka, Rifat Hamoudi, Saif Khan, Rui Henrique, Natalie Bergmoser, Manit Arya, Kalle Sipila, Matteo Vietri Rudan, Asif Muneer, Aamir Ahmed   +12 more
wiley   +1 more source

High-order Time Expansion Path Integral Ground State [PDF]

, 2009
The feasibility of path integral Monte Carlo ground state calculations with very few beads using a high-order short-time Green's function expansion is discussed. An explicit expression of the evolution operator which provides dramatic enhancements in the
Boronat, J., Casulleras, J., Mazzanti, F., Rota, R.   +3 more
core   +3 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Eidos and Identitas Indiscernibilium in Quantum Mechanics

Scientia et Fides, 2020
The principle of identitas indiscernibilium can be thoroughly expressed in a quantum context, overcoming the debate about the possibility of distinction among identical entities according to space-time parameters: the symmetry defined by the exchange of ...
Vicente Llamas Roig
doaj   +1 more source

Boundary Conditions on Internal Three-Body Wave Functions [PDF]

, 1999
For a three-body system, a quantum wave function $\Psi^\ell_m$ with definite $\ell$ and $m$ quantum numbers may be expressed in terms of an internal wave function $\chi^\ell_k$ which is a function of three internal coordinates.
A. J. Dragt, A. Messiah, A. S. Dickinson, B. K. Kendrick, B. T. Sutcliffe, D. Baye, D. O. Harris, F. T. Smith, G. S. Ezra, I. Daubechies, J. C. Light, J. V. Lill, J. V. Lill, Kevin A. Mitchell, L. C. Biedenharn, L. Wolniewicz, M. J. Davis, M. Nakahara, M. Spivak, R. G. Littlejohn, R. G. Littlejohn, R. G. Littlejohn, R. T. Pack, Robert G. Littlejohn, T. H. Gronwall, T. Iwai, T. Kato, V. A. Fock, V. A. Fock, V. A. Fock, V. Aquilanti, V. Aquilanti, V. Aquilanti, V. Aquilanti   +33 more
core   +3 more sources