Results 101 to 110 of about 1,473,692 (365)

A model for aperiodicity in earthquakes [PDF]

Nonlinear Processes in Geophysics, 2008
Conditions under which a single oscillator model coupled with Dieterich-Ruina's rate and state dependent friction exhibits chaotic dynamics is studied. Properties of spring-block models are discussed.
B. Erickson, B. Birnir, D. Lavallée
doaj  

Development of 4T1 breast cancer mouse model system for preclinical carbonic anhydrase IX studies

FEBS Open Bio, EarlyView.
Carbonic anhydrase IX (CAIX) is a well‐recognised therapeutic target and prognostic biomarker in cancer. We developed and characterised a robust murine breast cancer model system that is suitable for CAIX studies in vitro and in vivo—it comprises both CAIX‐positive and CAIX‐negative controls and provides a solid platform for the comprehensive ...
Zane Kalniņa, Ilva Liekniņa, Svetlana Koteloviča, Ramona Petrovska, Gediminas Žvinys, Agne Petrosiute, Asta Zubrienė, Matīss Toms Laugalis, Vendija Skeltona, Juris Jansons, Madara Kreishmane, Edita Čapkauskaitė, Daumantas Matulis, Kaspars Tārs   +13 more
wiley   +1 more source

Existence and Stability of Symmetric Periodic Simultaneous Binary Collision Orbits in the Planar Pairwise Symmetric Four-Body Problem

, 2011
We extend our previous analytic existence of a symmetric periodic simultaneous binary collision orbit in a regularized fully symmetric equal mass four-body problem to the analytic existence of a symmetric periodic simultaneous binary collision orbit in a
A. Chenciner, A. Sivasankaran, A. Venturelli, C. Moore, C. Simó, Duokui Yan, G. Contopoulos, G.E. Roberts, G.E. Roberts, J. Hietarinta, J. Schubart, K.R. Meyer, K.R. Meyer, L.F. Bakker, Lennard F. Bakker, M. Hénon, M. Sekiguchi, M.M. Saito, M.M. Saito, M.M. Saito, R. Martinez, R. Moeckel, S.J. Aarseth, Skyler Simmons, T. Ouyang, T. Ouyang, Tiancheng Ouyang, W.L. Sweatman, W.L. Sweatman, X. Hu, X. Hu   +30 more
core   +1 more source

Periodic orbits from nonperiodic orbits on an interval

Applied Mathematics Letters, 1997
AbstractThis paper demonstrates that any continuous real-valued function which has an orbit with infinitely many limit points must necessarily have periodic cycles of arbitrarily large prime period. We present an example of a function with an orbit whose limit points are exactly Z+.
Mario Martelli, Annalisa Crannell
openaire   +2 more sources

Knockout of the mitoribosome rescue factors Ict1 or Mtrfr is viable in zebrafish but not mice: compensatory mechanisms underlying each factor's loss

FEBS Open Bio, EarlyView.
Mitochondria contain two mitoribosome rescue factors, ICT1 and MTRFR (C12orf65). ICT1 also functions as a mitoribosomal protein in mice and humans, and its loss is lethal. Although Mtrfr knockout mice could not be generated, knockout zebrafish lines for ict1 and mtrfr were established.
Nobukazu Nameki, Chika Tomisawa, Soichiro Hoshino, Hidehiko Shimizu, Masashi Abe, Sho Arai, Kanako Kuwasako, Naoki Asakawa, Yusuke Inoue, Takuro Horii, Izuho Hatada, Masakatsu Watanabe   +11 more
wiley   +1 more source

Periodic Orbit Quantization beyond Semiclassics

, 1995
A quantum generalization of the semiclassical theory of Gutzwiller is given. The new formulation leads to systematic orbit-by-orbit inclusion of higher $\hbar$ contributions to the spectral determinant.
A. Voros, A. Wirzba, D. Alonso, D. Ruelle, Gábor Vattay, L. S. Schulman, M. C. Gutzwiller, M. Roncadelli, M. Roncadelli, M. V. Berry, M. V. Berry, N. D. Whelan, P. Cvitanović, P. Gaspard, P. Gaspard, Per E. Rosenqvist, R. B. Balian, R. Balian, R. P. Feynman, V. M. Babić, V. P. Maslov   +20 more
core   +2 more sources

Periodic orbits in periodic discrete dynamics

Computers & Mathematics with Applications, 2008
AbstractWe study the combinatorial structure of periodic orbits of nonautonomous difference equations xn+1=fn(xn) in a periodically fluctuating environment. We define the Γ-set to be the set of minimal periods that are not multiples of the phase period. We show that when the functions fn are rational functions, the Γ-set is a finite set. In particular,
openaire   +2 more sources

Profiling the effect of low frequency mechanical vibration on the metabolic and oxidative stress responses of A431 carcinoma

FEBS Open Bio, EarlyView.
20 Hz mechanical vibration induced A431 cancer cells' apoptosis without such effect on other healthy cell lines of L929 and C2C12. Lowered glucose consumption is observed specifically in A431. The expressions of ROS, HMGB1, and HSP1 levels initially increase and subsequently decrease in the cancer cell line, as opposed to L929 and C2C12, which ...
Wresti L. Anggayasti, Chikahiro Imashiro, Takashi Morikura, Shogo Miyata, Akira Funahashi, Kenjiro Takemura   +5 more
wiley   +1 more source

Periodic magnetoconductance fluctuations in triangular quantum dots in the absence of selective probing

, 1998
We have studied the magnetoconductance of quantum dots with triangular symmetry and areas down to 0.2 square microns, made in a high mobility two-dimensional electron gas embedded in a GaAs-AlGaAs heterostructure.
A. Kristensen, A. M. Chang, B. J. van Wees, C. M. Marcus, C. M. Marcus, C. M. Marcus, C. W. J. Beenakker, H. Bruus, H. Bruus, H. U. Baranger, H. van Houten, I. A. Larkin, I. V. Zozoulenko, J. Blaschke, J. P. Bird, J. P. Bird, J. P. Bird, K. F. Berggren, L. Christensson, M. Brack, M. Brack, M. Brack, M. Büttiker, M. C. Gutzwiller, M. J. Berry, M. Persson, M. Stopa, O. Bohigas, P. Bøggild, P. Bøggild, P. E. Lindelof, R. Akis, S. M. Reimann, S. M. Reimann   +33 more
core   +1 more source

Short peptide perturbs spermatogenesis via immune microenvironment dysregulation and mitochondrial imbalance

FEBS Open Bio, EarlyView.
In the blood–testis barrier, occludin is crucial for tight junctions. This study demonstrates that occludin‐targeting short peptides disrupt junction integrity, inducing immune cell infiltration, tumor necrosis factor‐α/interleukin‐6 secretion and mitochondrial dysfunction, ultimately triggering apoptosis.
Heng Wang, Xiaofang Tan, Deyu Chen
wiley   +1 more source