Results 61 to 70 of about 1,587,723 (333)

Reverse Doppler effect in backward spin waves scattered on acoustic waves

, 2009
We report on the observation of reverse Doppler effect in backward spin waves reflected off of surface acoustic waves. The spin waves are excited in a yttrium iron garnet (YIG) film. Simultaneously, acoustic waves are also generated.
A. A. Serga, A. Jander, A. V. Chumak, B. Hillebrands, C. Doppler, C. H. Papas, D. D. Stancil, P. Dhagat, S. Hanna, V. E. Pafomov, V. G. Veselago, V. G. Veselago, Yu. V. Gulyaev   +12 more
core   +1 more source

Isotope Shift Measurements of Stable and Short-Lived Lithium Isotopes for Nuclear Charge Radii Determination [PDF]

, 2010
Changes in the mean-square nuclear charge radii along the lithium isotopic chain were determined using a combination of precise isotope shift measurements and theoretical atomic structure calculations.
A. Dax, A. Wojtaszek, B. A. Bushaw, B. A. Bushaw, C. D. P. Levy, C. Zimmermann, G. A. Noble, G. Ewald, G. W. F. Drake, G. W. F. Drake, G. W. F. Drake, H.-J. Kluge, J. Behr, J. Dilling, J. Lassen, J. Walls, K. Pachucki, L. I. Schiff, M. Dombsky, M. Pearson, M. Puchalski, P. Bricault, R. Sánchez, S. Götte, Th. Kühl, W. E. Otten, W. H. Press, W. Nörtershäuser, Z.-C. Yan   +28 more
core   +3 more sources

Farnesyltransferase Deficiency in Cardiomyocytes Initiates Senescence and Contributes to Cardiac Fibrosis

Advanced Science, EarlyView.
Lipid overload suppresses SREBF2‐mediated FNTB expression, leading to defective Lamin A maturation and nuclear envelope instability. This nuclear catastrophe triggers a pro‐fibrotic senescence program in cardiomyocytes. Notably, restoring nuclear integrity via AAV9‐based gene therapy effectively attenuates cardiac remodeling, identifying the ...
Yuxiao Chen, Lian Lou, Xuan Zhang, Lin Yan, Qi Zhang, Wen Shi, Jie Ding, Xu Lin, Rong Jiang, Shuo Liu, Thida Sok, Pengli Wang, Yun Mou, Jie Han, Shenjiang Hu, Xiaogang Guo, Jian Yang   +16 more
wiley   +1 more source

Sub-Doppler laser cooling of fermionic 40K atoms in three-dimensional gray optical molasses

, 2012
We demonstrate sub-Doppler cooling of 40K on the D_1 atomic transition. Using a gray molasses scheme, we efficiently cool a compressed cloud of 6.5x10^8 atoms from ~ 4\mK to 20uK in 8 ms.
Chevy, Frédéric, Fernandes, Diogo Rio, Kretzschmar, Norman, Salomon, C., Sievers, Franz, Wu, Saijun   +5 more
core   +1 more source

Role of color Doppler in differentiation of Graves' disease and thyroiditis in thyrotoxicosis.

World Journal of Radiology, 2013
AIM To evaluate the role of thyroid blood flow assessment by color-flow Doppler ultrasonography in the differential diagnosis of thyrotoxicosis and compare it to technetium pertechnetate thyroid scanning. METHODS Twenty-six patients with thyrotoxicosis
R. H. Donkol, A. M. Nada, S. Boughattas
semanticscholar   +1 more source

Bioabsorbable Endovascular Adhesive Tape (BEAT) for Improving Vascular Regeneration

Advanced Science, EarlyView.
A bioabsorbable endovascular adhesive tape (BEAT) platform based on a hierarchical polyelectrolyte complex is developed to enhance drug delivery in the DCB system. The coating enables rapid transfer to the vessel, provides short‐term mechanical support, and promotes both immediate transfer and long‐term retention of drugs at the lesion site.
Jiarong Wang, Jing Wang, Xinyi Li, Bo Yu, Yiduo Chen, Yirong Guo, Honglin Qian, Meng Hu, Haoyang Liu, Wenhui Liu, Han Xu, Kefeng Ren, M. Cristina L. Martins, Jian Ji   +13 more
wiley   +1 more source

High-speed, high-frequency ultrasound, \u3ci\u3ein utero\u3c/i\u3e vector-flow imaging of mouse embryos [PDF]

, 2019
Real-time imaging of the embryonic murine cardiovascular system is challenging due to the small size of the mouse embryo and rapid heart rate. High-frequency, linear-array ultrasound systems designed for small-animal imaging provide high-frame-rate and ...
Aristizabal, Orlando, Ketterling, Jeffrey A., Phoon, Colin K. L., Silverman, Ronald H., Turnbull, Daniel H., Yiu, Billy Y. S., Yu, Alfred C. H.   +6 more
core   +1 more source

Crossover from Electromagnetically Induced Transparency to Autler-Townes Splitting in Open V-Type Molecular Systems

, 2013
We investigate electromagnetically induced transparency (EIT) and Autler-Townes splitting(ATS) in an open V-type molecular system. Through detailed analytical calculations on the absorption spectrum of probe laser field by using residue theorem and ...
Huang, Guoxiang, Tan, Chaohua, Zhu, Chengjie   +2 more
core   +1 more source

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

Advanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies, Emanuele Nicotra, Kefan Zhu, Chi Cong Nguyen, Bibhu Sharma, Adrienne Ji, Phuoc Thien Phan, Jingjing Wan, Patrick Pruscino, Hermione Truong, Jelena Rnjak‐Kovacina, Hoang‐Phuong Phan, Christopher Hayward, Nigel Hamilton Lovell, Thanh Nho Do   +14 more
wiley   +1 more source

Polyatomic candidates for cooling of molecules with lasers from simple theoretical concepts

, 2016
A rational approach to identify polyatomic molecules that appear to be promising candidates for direct Doppler cooling with lasers is outlined. First-principle calculations for equilibrium structures and Franck--Condon factors of selected representatives
Berger, Robert, Isaev, Timur
core   +1 more source