Results 121 to 130 of about 50,898 (280)
Rayleigh–Taylor instability in magnetohydrodynamic simulations of the Crab nebula [PDF]
, 2014 In this paper, we discuss the development of Rayleigh-Taylor (RT) filaments in axisymmetric simulations of pulsar wind nebulae (PWN). High-resolution adaptive mesh refinement magnetohydrodynamic simulations are used to resolve the non-linear evolution of
O. Porth, S. Komissarov, R. Keppens
semanticscholar +1 more source
Development and Change, EarlyView.ABSTRACT In East Africa, social enterprises that fuse development work with entrepreneurial activities and a language of ‘innovation’ are becoming prominent. Critical of the NGO/donor model, which they hold as unsustainable, such organizations are funded by corporate investment and philanthropic capital but aim for self‐reliance through enlisting local
Edwin Ambani Ameso, Ruth Jane Prince
wiley +1 more source
Kinematics of Molecular Hydrogen Emission from Planetary and Pre-planetary Nebulae [PDF]
arXiv, 2000 We report results from a program of high-resolution spectral mapping of rotational H_2 emission from bipolar planetary and pre-planetary nebulae. Long-slit spectra obtained with the NOAO Phoenix near-infrared spectrometer allow us to probe the molecular kinematics of these nebulae at moderate spatial resolution.
arxiv
Perception Pending: What Do Patents Signal to Consumers?
Journal of Empirical Legal Studies, EarlyView.ABSTRACT Patent law encourages inventors to label their products as “patented,” to mark their legal status and potentially secure monetary damages from infringing competitors. We examine whether such labels might have a separate and direct impact on consumers, by affecting how they view patented products and influencing what they purchase.
Alexander Billy, Neel Sukhatme
wiley +1 more source
Eta Carinae and Nebulae Around Massive Stars: Similarities to Planetary Nebulae? [PDF]
arXiv, 2008 I discuss some observational properties of aspherical nebulae around massive stars, and conclusions inferred for how they may have formed. Whether or not these ideas are applicable to the shaping of planetary nebulae is uncertain, but the observed similarities between some PNe and bipolar nebulae around massive stars is compelling. In the well-observed
arxiv
Journal of Evaluation in Clinical Practice, EarlyView.Abstract Medicine is a compound field composed of science and art. The (necessary) degree to which the latter is involved opens medicine, in particular, to the introduction of ideas which do not, by their very nature, submit to confirmation or confutation as do the various methods of traditional science.
Steven K. Baker
wiley +1 more source
Solar nebula magnetic fields recorded in the Semarkona meteorite
Science, 2014 Magnetic fields are proposed to have played a critical role in some of the most enigmatic processes of planetary formation by mediating the rapid accretion of disk material onto the central star and the formation of the first solids.
R. Fu +13 more
semanticscholar +1 more source
Models of Care for Older People: A Scoping Review
Journal of the American Geriatrics Society, EarlyView.ABSTRACT Background International recognition of the increasing importance of care for older people has seen growing interest in models of care for older people. Yet there is limited information about the scope and breadth of models of care for older people.
Ann Dadich +5 more
wiley +1 more source
Planetary Nebulae Research: Past, Present, and Future [PDF]
Galaxies 2024, 12, 39We review the evolution of our understanding of the planetary nebulae phenomenon and their place in the scheme of stellar evolution. The historical steps leading to our current understanding of central star evolution and nebular formation are discussed.
arxiv +1 more source
Journal of Management Studies, EarlyView.Abstract The development of a novel boundary infrastructure for large‐scale interorganizational collaboration presents a challenge that is ill‐understood: how can individual boundary objects, which do not suffice for large‐scale collaboration and might even engender conflict, be developed into a coherent boundary infrastructure that facilitates the ...
Jochem T. Hummel +2 more
wiley +1 more source