Results 81 to 90 of about 84,923 (296)

Second Core Formation and High Speed Jets: Resistive MHD Nested Grid Simulations

, 2006
The stellar core formation and high speed jets driven by the formed core are studied by using three-dimensional resistive MHD nested grid simulations. Starting with a Bonnor-Ebert isothermal cloud rotating in a uniform magnetic field, we calculate the ...
Blandford R. D., Bonnor W. B., Ebert R., Larson R. B., Masahiro N. Machida, Shu-ichiro Inutsuka, Tomoaki Matsumoto   +6 more
core   +1 more source

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick, Nomin Enkhtsetseg, Joseph Sadok, Matheus Mochetti, Annabel Sorby Adams, Jennifer Guo, Cristina Trapaga Hacker, Isabella Gomez Hjerthen, Seungwon Lee, Siddharth Satish, Andrew S. Ham, Justin Hill, Denis Balaban, Kevin Kyle, Rebecca L. Gillani, Marcelo Matiello, Aleksandar Videnovic, Eric C. Klawiter, W. Taylor Kimberly, Farrah J. Mateen   +19 more
wiley   +1 more source

Interaction between Winds from Weak-lined T Tauri Stars with Exoplanetary Magnetospheres

The Astrophysical Journal
T Tauri stars, in more advanced stages of evolution, during the final accretion phase of stellar formation, exhibit intense stellar winds and surface magnetic fields with intensities around a kilogauss.
Yasmmin F. Tamburus, Natália F. S. Andrade, Guilherme R. C. Sampaio, Vera Jatenco-Pereira   +3 more
doaj   +1 more source

Multiple short-term cycles in Kepler star KIC 6876668

Astronomy & Astrophysics
Context. Solar and stellar magnetic activity may have similar properties, which can be used to understand the stellar magnetic evolution. Aims. This paper examines the multiple short-term cycles in the total irradiance of the Sun and in the light curve ...
Gurgenashvili E., Zaqarashvili T. V., Reiners A., Lanza A. F., Oliver R., Albekioni M.   +5 more
doaj   +1 more source

The Role of Magnetic Field in Molecular Cloud Formation and Evolution

Frontiers in Astronomy and Space Sciences, 2019
We review the role that magnetic field may have on the formation and evolution of molecular clouds. After a brief presentation and main assumptions leading to ideal MHD equations, their most important correction, namely the ion-neutral drift is described.
Patrick Hennebelle, Patrick Hennebelle, Shu-ichiro Inutsuka   +2 more
doaj   +1 more source

Activation of the Blandford-Znajek mechanism in collapsing stars

, 2009
Collapse of massive stars may result in formation of accreting black holes in their interior. The accreting stellar matter may advect substantial magnetic flux onto the black hole and promote release of its rotational energy via magnetic stresses (the ...
Aloy, Ardeljan, Barkov, Begelman, Bethe, Bezchastnov, Bisnovatyi-Kogan, Bisnovatyi-Kogan, Blandford, Blandford, Blondin, Braithwaite, Buras, Burrows, Camenzind, Donati, Ferrario, Frayer, Fujimoto, Ghosh, Heger, Heger, Heyvaerts, Hirschi, Hirschi, Howarth, Igumenshchev, Ivanova, Koide, Komissarov, Komissarov, Komissarov, Komissarov, Komissarov, Komissarov, Lee, Livio, Lubow, Macdonald, MacFadyen, Maxim V. Barkov, McKinney, McKinney, Mignone, Misner, Mizuno, Mizuno, Moiseenko, Moss, Mészáros, Nagakura, Nagataki, Nagataki, Narayan, Obergaulinger, Penny, Piran, Popham, Proga, Robstein, Rädler, Scheck, Schinder, Schmidt, Sekiguchi, Serguei S. Komissarov, Spruit, Spruit, Taam, Takahashi, Tao, Tayler, Timmes, Tout, Tutukov, Uzdensky, Woosley, Woosley, Woosley, Woosley, Yoon, Yoon, Zel'dovich, Zhang   +83 more
core   +1 more source

B fields in OB stars (BOB): low-resolution FORS2 spectropolarimetry of the first sample of 50 massive stars [PDF]

, 2015
Within the context of the collaboration "B fields in OB stars (BOB)", we used the FORS2 low-resolution spectropolarimeter to search for a magnetic field in 50 massive stars, including two reference magnetic massive stars.
Briquet, M., Castro, N., collaboration, the BOB, de Koter, A., Fossati, L., Herrero, A., Hubrig, S., Langer, N., Morel, T., Przybilla, N., Sana, H., Schneider, F. R. N., Schoeller, M.   +12 more
core   +3 more sources

Evidence of Iron Accumulation in Cerebral Adrenoleukodystrophy: A Potential Novel Disease Mechanism

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT In this first application of Quantitative Susceptibility Mapping Source Separation to cerebral adrenoleukodystrophy, we uncovered alterations in iron and myelin within lesions and normal appearing white matter. As validation, we demonstrate abnormal iron accumulation in those same compartments within primary brain tissue.
Christina L. Nemeth, Mert Sisman, Jinwei Zhang, Hyeong‐geol Shin, Xu Li, Bela Turk, Ali Fatemi, Thanh Nguyen, Eric Mallack   +8 more
wiley   +1 more source

Posterior Cortical Atrophy in the Asia‐Pacific: A Report From the PCA Asian Workgroup

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Posterior Cortical Atrophy (PCA) is a distinct dementia syndrome primarily affecting spatial abilities and visual processing. It is associated with degeneration in the posterior part of the brain. PCA is subclassified into PCA‐pure and PCA‐plus syndromes based on consensus criteria.
Yuttachai Likitjaroen, Ya‐Ting Chang, Levinia Lim, Pai‐Yi Chiu, Jung‐Lung Hsu, SangYun Kim, Wataru Narita, Na Young Ryoo, Kyoko Suzuki, Nagaendran Kandiah, Sebastian Crutch, Ming‐Chyi Pai   +11 more
wiley   +1 more source

Outer gap accelerator closed by magnetic pair-creation process

, 2010
We discuss outer gap closure mechanism in the trans-field direction with the magnetic pair-creation process near the stellar surface. The gap closure by the magnetic pair-creation is possible if some fraction of the pairs are produced with an outgoing ...
Abdo, Abdo, Blandford, Cheng, Dyks, Dyks, Harding, Harding, Hirotani, Hirotani, J. Takata, K. S. Cheng, Pellizzoni, Spitkovsky, Takata, Takata, Tang, Thompson, Venter, Y. Wang, Zhang, Zhang   +21 more
core   +1 more source