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Background: The intensity of the electric field applied to a brain tumor by electric field therapy is influenced by the position of the electrode array, which should be optimized based on the patient's head shape and tumor characteristics.…

We examine wave propagation and the formation of shocks in strongly magnetized plasmas by applying a variational technique and the method of characteristics to the coupled magnetohydrodynamic (MHD) and quantum-electrodynamic (QED) equations…

高能物理 - 理论 · 物理学 2009-10-31 Jeremy S. Heyl , Lars Hernquist

The mechanical properties of PC12 living cells have been studied at the nanoscale with a Force Feedback Microscope using two experimental approaches. Firstly, the local mechanical impedance of the cell membrane has been mapped…

The pathogenesis and progression of many tumors, including hematologic malignancies is highly dependent on enhanced lipogenesis. De novo fatty-acid synthesis permits accelerated proliferation of tumor cells by providing structural…

组织与器官 · 定量生物学 2016-12-04 Christian Thiede , Gerhard Ehninger , Kai Simons , Michal Grzybek , Adam Stefanko

Star formation in the centers of galaxies is thought to yield massive stars with a possibly top-heavy stellar mass distribution. It is likely that magnetic fields play a crucial role in the distribution of stellar masses inside star-forming…

星系天体物理 · 物理学 2012-08-03 S. Hocuk , D. R. G. Schleicher , M. Spaans , S. Cazaux

A typical cell culture CO2 incubator was probed in detail to document the pattern of 60-Hz magnetic fields (MFs) inside the unit, as well as the ability of the incubator to attenuate environmental MFs. Subsequently, a survey of 46 cell…

定量方法 · 定量生物学 2012-11-13 Su Dong , Paul Heroux

Coupling effects among different physical fields substantially reflect the conversion of energies from one form into another. For simple physical processes, their governing or constitutive equations all satisfy the law of conservation of…

综合物理 · 物理学 2021-03-02 Peng Zhou

Mutations in the epidermal growth factor receptor (EGFR) are common in non-small cell lung cancer (NSCLC), particularly in never-smoker patients. However, these mutations are not always carcinogenic, and have recently been reported in…

Breast cancer is one of the most challenging global health problems among women. This study investigates the intricate breast tumor microenvironment (TME) dynamics utilizing data from Mammary-specific Polyomavirus Middle T Antigen…

定量方法 · 定量生物学 2024-04-11 Navid Mohammad Mirzaei , Panayotis G. Kevrekidis , Leili Shahriyari

Very recently, the National Toxicology Program reported a correlation between exposure to whole body 900 MHz radiofrequency radiation and cancer in the brains and hearts of Sprague Dawley male rats. This paper proposes the following…

组织与器官 · 定量生物学 2017-07-20 Bernard J. Feldman

We consider physics behind the FLASH modality of cancer radiation treatment where extremely short treatment times are achieved with ultra high dose rates maintaining the conventional antitumor effectiveness and yet substantially reducing…

医学物理 · 物理学 2026-03-19 Diana Shvydka , Victor Karpov , Nilendu Gupta

Spiral waves of excitation in cardiac tissue are associated with life-threatening cardiac arrhythmias. It is, therefore, important to study the electrophysiological factors that affect the dynamics of these spiral waves. By using an…

生物物理 · 物理学 2021-08-17 Mahesh Kumar Mulimani , Soling Zimik , Rahul Pandit

The effects of surface curvature on the motion of electrons in a mesoscopic two-dimensional ring on a cone in the presence of external magnetic fields are examined. The approach follows the thin-layer quantization procedure, which gives…

介观与纳米尺度物理 · 物理学 2019-11-04 Luís Fernando C. Pereira , Fabiano M. Andrade , Cleverson Filgueiras , Edilberto O. Silva

We report on bifurcations effect mediated by the electron-phonon coupling in a concentrated rare-earth-containing antiferromagnet, observed in the spectra of coupled $4f$-electron-phonon modes under the influence of an external magnetic…

The primordial magnetic fields (PMFs) produced in the early universe are expected to be the origin of the large-scale cosmic magnetic fields. The PMFs are considered to leave a footprint on the cosmic microwave background (CMB) anisotropies…

宇宙学与河外天体物理 · 物理学 2021-05-17 Teppei Minoda , Kiyotomo Ichiki , Hiroyuki Tashiro

Gate-modulated low-temperature Raman spectra reveal that the electric field effect (EFE), pervasive in contemporary electronics, has marked impacts on long wavelength optical phonons of graphene. The EFE in this two dimensional honeycomb…

介观与纳米尺度物理 · 物理学 2009-11-11 Jun Yan , Yuanbo Zhang , Philip Kim , Aron Pinczuk

We investigated the magnetic field effects (MFEs) in organic light-emitting diodes (OLEDs) through the transient electroluminescence (EL) method. The time-resolved MFEs on the emission were obtained for the first time, which would be a…

材料科学 · 物理学 2011-07-11 Qiming Peng , Xianjie Li , Feng Li

We suggest a mechanism of energy transformation from fast magnetosonic waves propagating across a magnetic field to Alfv{\'e}n waves propagating along the field. The mechanism is based on {\it swing wave-wave interaction} [T.V.…

天体物理学 · 物理学 2009-11-07 T. v. Zaqarashvili , B. Roberts

The evolution of non-potential perturbations to a current-free magnetic X-point configuration is studied, taking into account electron inertial effects as well as resistivity. Electron inertia is shown to have a negligible effect on the…

天体物理学 · 物理学 2009-11-10 K. G. McClements , A. Thyagaraja , N. Ben Ayed , L. Fletcher

The electronic structure of few-layer(FL) black phosphorus(BP) sensitively depends on the sample thickness, strain and doping. In this paper, we show that it is also vulnerable to air-exposure. The oxidation of BP caused by air-exposure…

介观与纳米尺度物理 · 物理学 2019-03-27 Fanjie Wang , Guowei Zhang , Shenyang Huang , Chaoyu Song , Chong Wang , Qiaoxia Xing , Yuchen Lei , Hugen Yan