The standard picture of ionic micelles

2007 ◽  
pp. 6-16 ◽  
Author(s):  
D. W. R. Gruen
Keyword(s):  
Ionic Micelles ◽  
Standard Picture

scholarly journals Millisecond Pulsars

1989 ◽  
Vol 8 ◽  
pp. 161-165
Author(s):  
J.H. Krolik
Keyword(s):  
Neutron Star ◽  
Stellar Evolution ◽  
Close Binary ◽  
Millisecond Pulsar ◽  
Millisecond Pulsars ◽  
Physical Conditions ◽  
Cast Doubt ◽  
Standard Picture ◽  
The Universe ◽  
New System

AbstractMillisecond pulsars are intrinsically interesting because they illustrate some of the most extreme physical conditions to be found anywhere in the Universe, and because their evolution exhibits several stages of great drama. It had been widely believed for several years that spin-up of an old neutron star by accretion from a close stellar companion explained their fast rotation, but the absence of companions in several cases cast doubt on that picture. This spring a millisecond pulsar in a close binary was discovered in which the companion appears to be evaporating, thus reconciling the existence of lone millisecond pulsars with the standard picture. Ongoing observations of this new system, and complementary calculations, promise to answer many of the questions remaining about this dramatic phase in stellar evolution.

A comparative study of the photophysical and phototoxic properties of octakis(decyloxy)phthalocyaninato zinc(ii), incorporated in a hydrophilic polymer, in liposomes and in non-ionic micelles

2003 ◽  
Vol 2 (10) ◽  
pp. 988-994 ◽  
Author(s):  
Myriam E. Rodriguez ◽  
Flavia Morán ◽  
Analía Bonansea ◽  
Marisa Monetti ◽  
Daniel A. Fernández ◽  
...  
Keyword(s):  
Comparative Study ◽  
Hydrophilic Polymer ◽  
Ionic Micelles

The Place of Expert Intuition in Philosophy

2020 ◽  
pp. 184-207
Author(s):  
Elijah Chudnoff
Keyword(s):  
Current Practice ◽  
Philosophical Methodology ◽  
Traditional Philosophy ◽  
Standard Picture ◽  
Intuitive Judgments ◽  
Historical Antecedents ◽  
Expertise Defense

The Standard Picture of philosophical methodology includes the following claims: (A) Intuitive judgments form an epistemically distinctive kind; (B) Intuitive judgments play an epistemically privileged role in philosophical methodology; (C) If intuitive judgments play an epistemically privileged role in philosophical methodology, then their role is to be taken as given inputs into generally accepted forms of reasoning; (D) Philosophical methodology is reasonable. Negative experimental philosophers accept claims (A), (B), and (C), but challenge (D). This chapter develops a variant on the expertise defense of traditional philosophy. The defense hinges on denying (C) in the Standard Picture: philosophers do not treat their intuitions as data; they treat their intuitions as observations that can be improved through reasoning. The chapter explores both historical antecedents in the rationalist tradition, and descriptive accuracy with respect to current practice.

scholarly journals On the opening angle of magnetized jets from neutron-star mergers: the case of GRB170817A

2020 ◽  
Vol 495 (4) ◽  
pp. 3780-3787 ◽  
Author(s):  
Antonios Nathanail ◽  
Ramandeep Gill ◽  
Oliver Porth ◽  
Christian M Fromm ◽  
Luciano Rezzolla
Keyword(s):  
Neutron Star ◽  
Gamma Ray ◽  
Initial Conditions ◽  
Observation Angle ◽  
Opening Angle ◽  
Binary Neutron Star ◽  
Best Fitting ◽  
Standard Picture ◽  
General Relativistic ◽  
Star Binary

ABSTRACT The observations of GW170817/GRB170817A have confirmed that the coalescence of a neutron-star binary is the progenitor of a short gamma-ray burst (GRB). In the standard picture of a short GRB, a collimated highly relativistic outflow is launched after merger and it successfully breaks out from the surrounding ejected matter. Using initial conditions inspired from numerical-relativity binary neutron-star merger simulations, we have performed general-relativistic hydrodynamic (HD) and magnetohydrodynamic (MHD) simulations in which the jet is launched and propagates self-consistently. The complete set of simulations suggests that: (i) MHD jets have an intrinsic energy and velocity polar structure with a ‘hollow core’ subtending an angle θcore ≈ 4°–5° and an opening angle of θjet > ≳ 10°; (ii) MHD jets eject significant amounts of matter and two orders of magnitude more than HD jets; (iii) the energy stratification in MHD jets naturally yields the power-law energy scaling E(> Γβ) ∝ (Γβ)−4.5; (iv) MHD jets provide fits to the afterglow data from GRB170817A that are comparatively better than those of the HD jets and without free parameters; and (v) finally, both of the best-fitting HD/MHD models suggest an observation angle θobs ≃ 21° for GRB170817A.

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