The long lag time between medical discovery and when Americans benefit from that discovery has a huge cost in terms of morbidity and mortality. Medicine needs more effective methods for moving discovery to practice. In this article, the authors first offer a critical review of the models of structure and change process gleaned from the physician change literature. Next, they describe the Integr...

Context. The structure of astrospheres depends on the interaction between host star and surrounding interstellar medium (ISM). Observations offer new opportunities to learn about details this interaction. Aims. aim work is study global astrospheres, concentrating case strong magnetic field low relative velocity ISM. Methods. We used a simple magnetohydrodynamical numerical code simulate stellar...

Interaction with the Interstellar Medium (ISM) cannot be ignored in understanding planetary nebula (PN) evolution and shaping. In an effort to understand the range of shapes observed in the outer envelopes of PNe, we have run a comprehensive set of three-dimensional hydrodynamic simulations, from the beginning of the asymptotic giant branch (AGB) superwind phase until the end of the post–AGB/PN...

We examine observational characteristics of multi-phase turbulent flows in the diffuse interstellar medium (ISM) using a synthetic radiation field of atomic and molecular lines. We consider the multi-phase ISM which is formed by thermal instability under the irradiation of UV photons with moderate visual extinction AV ∼ 1. Radiation field maps of C, C, and CO line emissions were generated by ca...

Abstract Purpose-The purpose of this paper is to review a sample of the literature relating to Interpretive Structural Modelling (ISM) and its deployment for modelling purposes in the area of supply chain management (SCM). Design/methodology/approach- The literature is examined from the three perspectives. First, concept of ISM and examines ISM as modelling technique. Second, use of ISM by ...

We report first results of first global galactic-scale CR-MHD simulations of cosmicray-driven dynamo. We investigate the dynamics of magnetized interstellar medium (ISM), which is dynamically coupled with the cosmic-ray (CR) gas. We assume that exploding stars deposit small-scale, randomly oriented, dipolar magnetic fields into the differentially rotating ISM, together with a portion of cosmic ...

Forty-two ROSAT Position Sensitive Proportional Counter pointed observations in the Ðrst quadrant (l D 4¡È26¡) of the Galactic plane are mosaicked in order to study the spatial structure of the X-rayÈ emitting gas in the Local Hot Bubble (LHB). X-ray intensity variations at various angular scales are examined in the keV band, and degree-scale variations are detected. In the context of the LHB a...

We consider the scenario of a magnetic field orthogonal to a front separating two media of different temperatures and densities, such as cold and warm neutral interstellar gas, in a 2-D plane-parallel geometry. A linear stability analysis is performed to assess the behavior of both evaporation and condensation fronts when subject to incompressible, corrugational perturbations with wavelengths l...

The Dominion Radio Astrophysical Observatory’s Synthesis Telescope provides the highest resolution data (1 arcmin and 0.82 km s) to date of an H I worm candidate. Observed as part of the Canadian Galactic Plane Survey, mushroom-shaped GW 123.4-1.5 extends only a few hundred parsecs, contains ∼ 10 M⊙ of neutral hydrogen, and appears unrelated to a conventional shell or chimney structure. Our pre...

We discuss the likely sources of turbulence in the ISM and explicitly calculate the detailed grand source function for the conventional sources of turbulence from supernovae, superbubbles, stellar winds and HII regions. We nd that the turbulent pumping due to the grand source function is broad band, consequently expanding the inertial range of the cascade. We investigate the general properties ...