Results 51 to 60 of about 244,669 (294)

The Quasi-Biennial Periodicity (QBP) in velocity and intensity helioseismic observations

, 2012
We looked for signatures of Quasi-Biennial Periodicity (QBP) over different phases of solar cycle by means of acoustic modes of oscillation. Low-degree p-mode frequencies are shown to be sensitive to changes in magnetic activity due to the global dynamo.
Finsterle, W., García, R. A., Jiménez, A., Roth, M., Salabert, D., Simoniello, R., Turck-Chièze, S.   +6 more
core   +3 more sources

High Sensitivity Magnetic Flux Sensors with Direct Voltage Readout Double Relaxation Oscillation SQUIDs [PDF]

, 1994
The experimental sensitivity of double relaxation oscillation SQUIDs (DROSs) has been compared with theory and with the results obtained by numerical simulations.
Adelerhof, D.J., Duuren, M.J. van, Flokstra, J., Kado, H., Kawai, J., Rogalla, H.   +5 more
core   +2 more sources

Blood‐based proteomic profiling reveals context‐dependent changes in BCL2‐associated signaling during taxane therapy in breast cancer patients

FEBS Open Bio, EarlyView.
Chemotherapy side effects significantly impact cancer survivors' quality of life. Using protein levels in blood samples from breast cancer patients before and after 12 weeks of taxane treatment, we detected treatment‐dependent changes in calcium signaling and aging pathways associated with cancer recurrence.
Saira Munshani, Eiman Y. Ibrahim, Rozalyn L. Rodwin, Leah M. Ferrucci, Kim Blenman, Maryam Lustberg, Barbara E. Ehrlich   +6 more
wiley   +1 more source

Fundamental properties of solar-like oscillating stars from frequencies of minimum $\Delta \nu$ : II. Model computations for different chemical compositions and mass

, 2015
The large separations between the oscillation frequencies of solar-like stars are measures of stellar mean density. The separations have been thought to be mostly constant in the observed range of frequencies.
Kayhan, C., Orhan, Z. Çelik, Yıldız, M.   +2 more
core   +3 more sources

Harmonic oscillator with complex frequency

Il Nuovo Cimento B Series 11, 1986
In the present paper we study the problem of the harmonic oscillator with complex frequency. A special case of this problem is the determination of the eigenvalues and eigenfunctions of the squeeze operator in quantum optics. The Hamilton operator of the complex harmonic oscillator is non-Hermitian and its study leads to the Lie-admissible theory ...
Jannussis, A., Skuras, E.
openaire   +2 more sources

Efficacy of Intermittent Theta‐Burst Stimulation for Prolonged Disorders of Consciousness: A Prospective, Randomized, Controlled Trial

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu, Jun Hu, Qianqian Wu, Min Wu, Yamei Yu, Hangcheng Li, Jian Gao, Jingqi Li, Nai Ding, Jie Yu, Benyan Luo   +10 more
wiley   +1 more source

FILOU oscillation code

, 2008
The present paper provides a description of the oscillation code FILOU, its main features, type of applications it can be used for, and some representative solutions. The code is actively involved in CoRoT/ESTA exercises (this volume) for the preparation
A. Moya, E. Poretti, F. Soufi, F. Tran Minh, J. C. Suárez, J.C. Suárez, J.C. Suárez, J.C. Suárez, J.C. Suárez, J.C. Suárez, L. Fox Machado, M. J. Goupil, R. Casas, W.A. Dziembowski   +13 more
core   +3 more sources

Unconventional Fermi surface in an insulating state [PDF]

, 2015
Insulators occur in more than one guise, a recent finding was a class of topological insulators, which host a conducting surface juxtaposed with an insulating bulk.
Balakrishnan, G., Balicas, L., Harrison, N., Hartstein, M., Hatnean, M. Ciomaga, Hsu, Y. -T., Johannes, M. D., Kiourlappou, M., Lonzarich, G. G., Murphy, T. P., Park, J. -H., Sebastian, Suchitra E., Srivastava, A., Tan, B. S., Zeng, B., Zhu, Z.   +15 more
core   +2 more sources

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

A seismic signature of a second dynamo?

, 2010
The Sun is a variable star whose magnetic activity varies most perceptibly on a timescale of approximately 11 years. However, significant variation is also observed on much shorter timescales.
Antia, Benevolenskaya, Broomhall, Chaplin, Christensen-Dalsgaard, Elsworth, Fletcher, Hathaway, Jiménez-Reyes, Jiménez-Reyes, Pallé, Vecchio   +11 more
core   +1 more source