Results 51 to 60 of about 538,069 (301)

Vortex Knots [PDF]

, 1998
In this paper we present new results concerning the evolution and stability of vortex knots in the context of the Euler equations. For the first time, since Lord Kelvin’s original conjecture of 1875, we have direct numerical evidence of stability of vortex filaments in the shape of torus knots. The results are based on the analytical solutions of Ricca
Barenghi, CF, Ricca, R, Samuels, DC
openaire   +2 more sources

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Research on the Unsteady Flow and Vortex Characteristics of Cavitation at the Tongue in Centrifugal Pump [PDF]

Journal of Applied Fluid Mechanics
In order to study the unsteady flow and vortex characteristics of tongue cavitation, numerical calculation is carried out for the whole flow channel given different conditions. Then, the calculation results are verified experimentally.
Z. Y. Luo, Y. Feng, X. Y. Sun, Y. Gong, J. X. Lu, X. W. Zhang   +5 more
doaj   +1 more source

Method of stabilizing flueric vortex valves and vortex amplifiers [PDF]

, 1970
Inducing losses in the vortex chamber of vortex valves and vortex amplifiers resolves the problem of unstable operation caused by a sufficiently large positive feedback.
Erwin, L. R., Mc Fall, R. H.
core   +1 more source

Fundamental and vortex solitons in a two-dimensional optical lattice

, 2003
Fundamental and vortex solitons in a two-dimensional optically induced waveguide array are reported. In the strong localization regime, the fundamental soliton is largely confined to one lattice site, while the vortex state comprises of four fundamental ...
Baizakov, Christodoulides, Efremidis, Eisenberg, Ferrando, Fleischer, Fleischer, Jianke Yang, Kelley, Lederer, Malomed, Pelinovsky, Pitaevskii, Vakhitov, Xie, Ziad H. Musslimani   +15 more
core   +2 more sources

Offsprings of a point vortex [PDF]

, 2011
The distribution engendered by successive splitting of one point vortex are considered. The process of splitting a vortex in three using a reverse three-point vortex collapse course is analysed in great details and shown to be dissipative.
A. Barrat, C. Josserand, C.F. Carnevale, D.G. Dritschel, E. Caglioti, E.A. Novikov, E.A. Novikov, F. Spineanu, G. Joyce, H. Aref, H. Aref, J. Fröhlich, J. Tavantzis, J.B. Weiss, J.B. Weiss, J.C. McWilliams, J.L. Synge, L. Onsager, N.J. Zabusky, O.U. Velasco Fuentes, P.H. Chavanis, P.W.C. Vobseek, R. Benzi, R. Benzi, R. Benzi, R. Robert, S. Villain-Guillot, X. Leoncini, X. Leoncini   +28 more
core   +4 more sources

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Critical depinning force and vortex lattice order in disordered superconductors

, 2000
We simulate the ordering of vortices and its effects on the critical current in superconductors with varied vortex-vortex interaction strength and varied pinning strengths for a two-dimensional system.
A.-Ch. Shi, A.B. Kolton, A.E. Koshelev, A.I. Larkin, C. J. Olson, C. Reichhardt, C. Zeng, C.J. Olson, D.G. Grier, G. Blatter, G. Ravikumar, G. Ravikumar, H.J. Jensen, J. Shi, K. Ghosh, K. Moon, M.C. Faleski, M.C. Hellerqvist, M.J. Higgins, N. Grønbech-Jensen, P.L. Gammel, S. Bhattacharya, S. Bhattacharya, S. Kokkaliaris, S. Ryu, S. Sarkar, S. Spencer, S.S. Banerjee, W. Henderson, Y. Paltiel   +29 more
core   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source

Correlations between Abelian Monopoles and center vortices

, 2017
We study the correlations between center vortices and Abelian monopoles for SU($3$) gauge group. Combining fractional fluxes of monopoles, center vortex fluxes are constructed in the thick center vortex model.
Deldar, Sedigheh, Nejad, Seyed Mohsen Hosseini   +1 more
core   +2 more sources