Results 61 to 70 of about 4,484,191 (405)

Emission Spectrum of a Dipole in a Semi-infinite Periodic Dielectric Structure: Effect of the Boundary

, 2000
The emission spectrum of a dipole embedded in a semi-infinite photonic crystal is calculated. For simplicity we study the case in which the dielectric function is sinusoidally modulated only along the direction perpendicular to the boundary surface plane.
A. G. Galstyan, B.Y. Tong, D. Kleppner, D.J. Heinzen, E. Yablonovitch, E.M. Purcell, E.P. Petrov, H. Chew, J. Martorell, J.P. Dowling, K. Yoshino, M. E. Raikh, M. Megens, M. Megens, P. Goy, R.R. Chance, S. Haroche, S. John, S. John, S. John, S. John, S. John, T. Suzuki, T. Yamasaki, V.I. Rupasov, V.V. Klimov, W. Jhe, Z. V. Vardeny   +27 more
core   +2 more sources

On the Synchrotron Spectrum of GRB Prompt Emission [PDF]

The Astrophysical Journal, 2018
Abstract The prompt emission spectrum of gamma-ray bursts is characterized by a smoothly joint broken power-law spectrum known as the Band function. The typical low-energy photon index is , which poses a challenge to standard synchrotron radiation models. We investigate the
Siyao Xu, Yuan-Pei Yang, Bing Zhang
openaire   +3 more sources

P‐glycoprotein modulates the fluidity gradient of the plasma membrane of multidrug resistant CHO cells

FEBS Letters, EarlyView.
To explore the impact of the overexpression of the multidrug‐transporter P‐glycoprotein (ABCB1) on membrane fluidity, we compared the transversal gradient of mobility and microviscosity in plasma membranes of drug‐sensitive Chinese hamster ovary cells (AuxB1) and their multidrug‐resistant derivatives (B30) using the fluorescent n‐(9‐anthroyloxy) fatty ...
Roger Busche, John R. Riordan, Burkhard Tümmler   +2 more
wiley   +1 more source

Disruption of SETD3‐mediated histidine‐73 methylation by the BWCFF‐associated β‐actin G74S mutation

FEBS Letters, EarlyView.
The β‐actin G74S mutation causes altered interaction of actin with SETD3, reducing histidine‐73 methylation efficiency and forming two distinct actin variants. The variable ratio of these variants across cell types and developmental stages contributes to tissue‐specific phenotypical changes. This imbalance may impair actin dynamics and mechanosensitive
Anja Marquardt, Marcus S. Münchhoff, Jacqueline Krohn, Philip M. Palarz, Manuel H. Taft, Johannes N. Greve, Nataliya Di Donato, Falk F. R. Buettner, Dietmar J. Manstein   +8 more
wiley   +1 more source

Spinning dust emission from ultrasmall silicates: emissivity and polarization spectrum [PDF]

The Astrophysical Journal, 824:18 (11pp), 2016, 2016
Anomalous microwave emission (AME) is an important Galactic foreground of Cosmic Microwave Background (CMB) radiation. It is believed that the AME arises from rotational emission by spinning polycyclic aromatic hydrocarbons (PAHs) in the interstellar medium (ISM). In this paper, we assume that a population of ultrasmall silicate grains may exist in the
arxiv   +1 more source

Linear acceleration emission: 2 Power spectrum

, 2009
The theory of linear acceleration emission is developed for a large amplitude electrostatic wave in which all particles become highly relativistic in much less than a wave period. An Airy integral approximation is shown to apply near the phases where the
Abramowitz, Beloborodov, D. B. Melrose, Fung, Levinson, Melrose, Melrose, Melrose, Q. Luo, Rowe   +9 more
core   +1 more source

Identification of functional and diverse circulating cancer‐associated fibroblasts in metastatic castration‐naïve prostate cancer patients

Molecular Oncology, EarlyView.
Cancer‐associated fibroblasts (CAFs) promote cancer growth, invasion (metastasis), and drug resistance. Here, we identified functional and diverse circulating CAFs (cCAFs) in patients with metastatic prostate cancer (mPCa). cCAFs were found in higher numbers and were functional and diverse in mPCa patients versus healthy individuals, suggesting their ...
Richell Booijink, Leon W. M. M. Terstappen, Eshwari Dathathri, Khrystany Isebia, Jaco Kraan, John Martens, Ruchi Bansal   +6 more
wiley   +1 more source

On the location of the gamma-ray emission region for 21 flat spectrum radio quasars with quasi-simultaneous observations [PDF]

, 2013
We try to infer the location of the GeV emission region for 21 flat spectrum radio quasars (FSRQs) with quasi-simultaneous spectral energy distributions (SEDs), in which the SEDs of 21 FSRQs are reproduced by the one-zone leptonic model including the synchrotron-self Compton (SSC) and external Compton (EC) processes.
arxiv   +1 more source

Observations of the post shock break-out emission of SN 2011dh with XMM-Newton [PDF]

, 2012
After the occurrence of the type cIIb SN 2011dh in the nearby spiral galaxy M 51 numerous observations were performed with different telescopes in various bands ranging from radio to gamma-rays.
A. Cherian, D.G. Lowe, H. Li, J. Wright, M. Yang, M.T. Harandi, O. Tuzel, O. Tuzel, P.A. Absil, P.J. Phillips, P.T. Fletcher, R. Caseiro, S. Jung, S. Yan, T.S. Lee, X. Pennec, Y. Pang   +16 more
core   +3 more sources

Targeting the MDM2‐MDM4 interaction interface reveals an otherwise therapeutically active wild‐type p53 in colorectal cancer

Molecular Oncology, EarlyView.
This study investigates an alternative approach to reactivating the oncosuppressor p53 in cancer. A short peptide targeting the association of the two p53 inhibitors, MDM2 and MDM4, induces an otherwise therapeutically active p53 with unique features that promote cell death and potentially reduce toxicity towards proliferating nontumor cells.
Sonia Valentini, Giada Mele, Marika Attili, Maria Rita Assenza, Fulvio Saccoccia, Francesca Sardina, Cinzia Rinaldo, Roberto Massari, Nicola Tirelli, Alfredo Pontecorvi, Fabiola Moretti   +10 more
wiley   +1 more source