Results 61 to 70 of about 116,603 (307)

HD 189733 b: bow shock or no shock? [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. Hot Jupiters are surrounded by extended atmospheres of neutral hydrogen. Observations have provided evidence for in-transit hydrogen Hα absorption as well as variable pre-transit absorption signals. These have been interpreted in terms of a bow shock or an accretion stream that transits the host star before the planet. Aims.
S. Kohl   +3 more
openaire   +1 more source

Gemella morbillorum Promotes Colorectal Carcinogenesis: LPBDCP‐Mediated Invasion Activates Ras Signaling and Destabilizes p53

open access: yesAdvanced Science, EarlyView.
ABSTRACT Gut microbiota dysbiosis promotes colorectal cancer (CRC) tumorigenesis. A global fecal metagenomic analysis identified Gemella morbillorum as a key contributor to the CRC‐associated microbiota. Fluorescence in situ hybridization revealed that Gemella morbillorum is enriched in CRC tumor tissues compared to adjacent normal tissues.
Zhen Wang   +8 more
wiley   +1 more source

Beyond CD30: Dual‐Targeting of Malignant and Regulatory T Cells by Brentuximab Vedotin Remodels the Lymphoma Microenvironment and Overcomes Resistance via BCL2 Inhibition in Mycosis Fungoides

open access: yesAdvanced Science, EarlyView.
Single‐cell RNA analyses of paired lesions from CD30+ mycosis fungoides patients demonstrate that brentuximab vedotin (BV) induces immunogenic cell death in both CD30+ and CD30− malignant T cells. BV also targets regulatory T cells and remodels tumor microenvironment, while resistance is driven by impaired IFN responses, drug efflux, and BCL2 ...
Yi Jiang   +8 more
wiley   +1 more source

Turbulence development behind the bow shock during disturbed and undisturbed solar wind

open access: yesSolar-Terrestrial Physics
Magnetosheath is a transition layer between the solar wind and the magnetosphere and may contribute to the geoeffectiveness of various large-scale interplanetary phenomena.
Rakhmanova L. S.   +4 more
doaj   +1 more source

Intracellular Aβ42 Sequestration by a Serine Protease Mitigates Neurotoxicity in a Drosophila Alzheimer's Disease Model

open access: yesAdvanced Science, EarlyView.
Emerging evidence suggests that intraneuronal Aβ accumulation represents an early pathogenic event in Alzheimer's disease (AD). Using Drosophila AD model, this study shows that a nonsecreted serine protease Yip7 physically interacts with Aβ. This causes intraneuronal Aβ accumulation but surprisingly reduces the associated neurotoxicity, arguing that ...
Jingyun Su   +4 more
wiley   +1 more source

A 3D Parametric Venusian Bow Shock Model with the Effects of Mach Number and Interplanetary Magnetic Field

open access: yesThe Astronomical Journal
Using global magnetohydrodynamics simulations, we have developed a three-dimensional parametric model for the Venusian bow shock based on a generalized conic section function defined by six parameters, with the effects of the solar wind magnetosonic Mach
Ming Wang   +4 more
doaj   +1 more source

Statistical survey of day-side magnetospheric current flow using Cluster observations: bow shock [PDF]

open access: yesAnnales Geophysicae, 2018
We present the first comprehensive statistical survey of the day-side terrestrial bow shock current system based on a large number of Cluster spacecraft bow shock crossings.
E. Liebert, C. Nabert, K.-H. Glassmeier
doaj   +1 more source

Can the magnetic field in the Orion arm inhibit the growth of instabilities in the bow shock of Betelgeuse?

open access: yes, 2013
Many evolved stars travel through space at supersonic velocities, which leads to the formation of bow shocks ahead of the star where the stellar wind collides with the interstellar medium (ISM).
Decin, Leen   +2 more
core   +3 more sources

Bow shock models of Herbig-Haro objects [PDF]

open access: yesSymposium - International Astronomical Union, 1987
It has recently been found that models of a radiating bow shock can explain qualitatively the strange emission line profiles observed in some Herbig-Haro (H-H) objects. It is also possible to compare directly the emission line intensity maps predicted from these models with CCD images of H-H objects.
A. C. Raga, K.-H. Böhm, M. Mateo
openaire   +1 more source

Double Layers in the Earth's Bow Shock

open access: yesGeophysical Research Letters, 2022
AbstractWe present Magnetospheric Multiscale observations of electrostatic double layers in quasi‐perpendicular Earth's bow shock. These double layers have predominantly parallel electric field with amplitudes up to 100 mV/m, spatial widths of 50–700 m, and plasma frame speeds within 100 km/s. The potential drop across a single double layer is 2%–7% of
J. Sun   +4 more
openaire   +2 more sources

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