A Checklist for Implementing Service-Learning in Higher Education

Service-learning has been implemented successfully as an instructional method in K-12 schools, colleges, and universities. Research indicates that service-learning helps students gain knowledge and skills and increase self-confidence and sense of caring. Service-learning projects in colleges and universities are beneficial to those in many disciplines, including education. This article provides a framework for including service-learning in education courses and introduces an innovative checklist to guide and evaluate service-learning as an instructional strategy. The checklist delineates the four-stage service-learning process: (a) preparation, (b) implementation, (c) assessment/reflection, and (d) demonstration/celebration

The Effect of Government Size on Economic Growth

This paper tests the hypothesis that the impact of government expenditures on growth is initially positive but becomes weaker or even negative beyond some threshold of government size or level of development. The author's cross-country regression results support this proposition in that the impact of changes in government size is positive and significant both for low income countries and for countries with a low share of government expenditures in GDP while being negative for countries with a high share for government expenditures and negative and significant for high income countries.Economic Growth; Government; Growth

Computational modeling of pulsed-power-driven magnetized target fusion experiments

Direct magnetic drive using electrical pulsed power has been considered impractically slow for traditional inertial confinement implosion of fusion targets. However, if the target contains a preheated, magnetized plasma, magnetothermal insulation may allow the near-adiabatic compression of such a target to fusion conditions on a much slower time scale. 100-MJ-class explosive flux compression generators with implosion kinetic energies far beyond those available with conventional fusion drivers, are an inexpensive means to investigate such magnetized target fusion (MTF) systems. One means of obtaining the preheated and magnetized plasma required for an MTF system is the recently reported {open_quotes}MAGO{close_quotes} concept. MAGO is a unique, explosive-pulsed-power driven discharge in two cylindrical chambers joined by an annular nozzle. Joint Russian-American MAGO experiments have reported D-T neutron yields in excess of 10{sup 13} from this plasma preparation stage alone, without going on to the proposed separately driven NM implosion of the main plasma chamber. Two-dimensional MED computational modeling of MAGO discharges shows good agreement to experiment. The calculations suggest that after the observed neutron pulse, a diffuse Z-pinch plasma with temperature in excess of 100 eV is created, which may be suitable for subsequent MTF implosion, in a heavy liner magnetically driven by explosive pulsed power. Other MTF concepts, such as fiber-initiated Z-pinch target plasmas, are also being computationally and theoretically evaluated. The status of our modeling efforts will be reported

Standard Forms of Power: Biopower and Sovereign Power in the Technology of the US Birth Certificate, 1903-1935

(First paragraph) One of the central analytical insights of Michel Foucault\u27s enormously influential political philosophy is that power is not unitary. Power does not always take the same form. Power has long been assumed to issue simply in the sovereign power\u27s mandating tactics of prohibition and permission. Foucault argued that, in addition to sovereign power, there also exists a disciplinary power of normalization and a biopower of regulation, each of which operates through techniques that are irreducible to classical sovereign strategies of unimpeachable authority, military violence, and legal mandate

On the use of intense ion beams for generating magnetized target fusion plasma

Magnetized Target Fusion (MTF) is a concept for creating a burning D-T plasma in a potentially inexpensive system. In essence, the concept involves ion heating on time scales short compared to ion transport times plus strong inhibition of thermal electron transport with a transverse magnetic field. The magnetic field is not intended to confine the ionic component. MTF is an intrinsically pulsed concept. A straightforward analysis of MTF indicates that D-T burning conditions can be achieved in compact plasma volumes with modest initial temperatures, through the use of pulsed power technology. In terms of size, density, temperature, and time scales, MTF occupies a position in phase space that is intermediate between steady MFE schemes and ICF. In terms of cost, it is one to two orders of magnitude less expensive than these. In this paper, the authors consider a possible method for creating the initial conditions adequate for the MTF concept through the use intense ion beam injection

Government expenditure and economic growth in the European Union countries: New evidence.

This paper provides new evidence of the impact of government spending on economic growth in the European Union countries. Governments can adjust their levels of spending in order to influence their economies, although the relationship between these variables can be positive or negative, depending on the countries included in the sample, the period of estimation and the variables which reflect the size of the public sector. The results obtained based on regression and panel techniques suggest that government expenditure is not clearly related with economic growth in the European Union countries over the period 1994-2012

Computational modeling of ``MAGO`` and other magnetized target fusion concepts

One possible way to obtain a preheated and magnetized plasma suitable for subsequent implosion is the ``MAGO`` concept. The unique MAGO discharge consists of a two chambers, with electrical current flowing in one chamber accelerating plasma flow into an implosion chamber. Up to 4 {times} 10{sup 13} D-T neutrons have been produced in the MAGO discharge. In this paper, we discuss our computational modeling of MAGO. Our objectives are to characterize the plasma, compare with the limited diagnostics available, and to understand the neutron production. We also discuss, briefly, some other possible means for creating a magnetized plasma

Computational and experimental investigation of magnetized target fusion

In Magnetized Target Fusion (MTF), a preheated and magnetized target plasma is hydrodynamically compressed to fusion conditions. Because the magnetic field suppresses losses by electron thermal conduction in the fuel during the target implosion heating process, the compression may be over a much longer time scale than in traditional inertial confinement fusion (ICF). Bigger targets and much lower initial target densities than in ICF can be used, reducing radiative energy losses. Therefore, ``liner-on-plasma`` compressions, driven by relatively inexpensive electrical pulsed power, may be practical. Potential MTF target plasmas must meet minimum temperature, density, and magnetic field starting conditions, and must remain relatively free of high-Z radiation-cooling-enhancing contaminants. At Los Alamos National Laboratory, computational and experimental research is being pursued into MTF target plasmas, such as deuterium-fiber-initiated Z-pinches, and the Russian-originated MAGO plasma. In addition, liner-on-plasma compressions of such target plasmas to fusion conditions are being computationally modeled, and experimental investigation of such heavy liner implosions has begun. The status of the research will be presented