The Tenuous Case for Conscience

If there is any single theme that has provided the foundation of modern liberalism and has infused our more specific constitutional commitments to freedom of religion and freedom of speech, that theme is probably “freedom of conscience.” But some observers also perceive a progressive cheapening of conscience– even a sort of degradation. Such criticisms suggest the need for a contemporary rethinking of conscience. When we reverently invoke “conscience,” do we have any idea what we are talking about? Or are we just exploiting a venerable theme for rhetorical purposes without any clear sense of what “conscience” is or why it matters? This essay addresses two questions. The first is discussed briefly: what is “conscience”? What do we have in mind when we say that someone acted from “conscience”? A second question receives more extended discussion: granted its importance to the individuals who assert it, still, why should “conscience” deserve special respect or accommodation from society, or from the state? That question forces us to consider the metaethical presuppositions of claims of conscience. The discussion suggests that claims to conscience may be defensible only on certain somewhat rarified moral and metaethical assumptions. The discussion further suggests that shifts in such assumptions have transformed the meaning of claims to “freedom of conscience,” so that such claims typically now mean almost the opposite of what they meant when asserted by early champions of conscience such as Thomas More, Roger Williams, and John Locke

The Iceberg of Religious Freedom: Subsurface Levels of Nonestablishment Discourse

This article discusses three levels of disagreement in establishment clause discourse– or what may be called the “lawyerly,” the “constitutive” (or “culture wars”), and the “philosophical” (or perhaps the “theological”) levels. Disagreement at the first of these levels is everywhere apparent in the way lawyers and justices and scholars write and argue; disagreement at the second level is somewhat less obtrusive but still easily discernible; disagreement at the third level is almost wholly beneath the surface. The manifest indeterminacy of lawyerly arguments suggests that in this area, premises are more likely to be derived from favored conclusions, not the other way around. So then what determines which conclusions– and hence which premises– lawyers and judges and scholars select? The article suggests that our conclusions are largely dictated by commitments at the second level– commitments to what we take to be the essential meaning of America. Moreover, the historical and interpretive indeterminacy associated with these commitments further suggests that (contrary to liberal wisdom which urges that public or constitutional reasoning be detached from people’s various “comprehensive doctrines”), commitments at the second level are in turn influenced to a significant extent by what is believed or at least presupposed at the third level of basic philosophy or theology. Hence the comparison of our establishment clause discourse to an iceberg: what we see is the most insubstantial part, and the real mass and force are largely out of sight. The article concludes that the valuable work in the area of religious freedom– the work that has a chance to be illuminating and not merely polemical– will be work that probes those deeper connections and presuppositions

Paper Session II-C - Verification of International Space Station Component Leak Rates by Helium Accumulation Method

Discovery of leakage on several International Space Station U.S. LAB ammonia system quick disconnects (QDs) led to the need for a quick process to quantify total leakage without removing the QDs from the system. An innovative solution was proposed allowing quantitative leak rate measurement at ambient external pressure without QD removal. The method utilizes a helium mass spectrometer configured in the detector probe mode to determine helium leak rates inside a containment hood installed on the test showed the method was viable, accurate and repeatable for a wide range of leak rates. The accumulation method has been accepted by NASA and is currently being used by Boeing Huntsville, Boeing Kennedy Space Center and Boeing Johnson Space Center to test welds and valves and will be used by Alenia to test the Cupola. The method has been used in place of more expensive vacuum chamber testing which requires removing the test component from the system

A Reader\u27s Guide to Youth Ministry

Youth ministry scholarship over the past 20 years has offered an array of works impactful to scholars, parents, church leaders, and youth workers. Because of the growing number of robust writings, we have compiled an annotated bibliography intended to guide this wide range of readers in overview of the most impactful works for youth ministry scholarship and practice

Thin-layer and full Navier-Stokes calculations for turbulent supersonic flow over a cone at an angle of attack

The proper use of a computational fluid dynamics code requires a good understanding of the particular code being applied. In this report the application of CFL3D, a thin-layer Navier-Stokes code, is compared with the results obtained from PARC3D, a full Navier-Stokes code. In order to gain an understanding of the use of this code, a simple problem was chosen in which several key features of the code could be exercised. The problem chosen is a cone in supersonic flow at an angle of attack. The issues of grid resolution, grid blocking, and multigridding with CFL3D are explored. The use of multigridding resulted in a significant reduction in the computational time required to solve the problem. Solutions obtained are compared with the results using the full Navier-Stokes equations solver PARC3D. The results obtained with the CFL3D code compared well with the PARC3D solutions

Installed F/A-18 inlet flow calculations at 30 degrees angle-of-attack: A comparative study

NASA Lewis is currently engaged in a research effort as a team member of the High Alpha Technology Program (HATP) within NASA. This program utilizes a specially equipped F/A-18, the High Alpha Research Vehicle (HARV), in an ambitious effort to improve the maneuverability of high-performance military aircraft at low subsonic speed, high angle of attack conditions. The overall objective of the Lewis effort is to develop inlet technology that will ensure efficient airflow delivery to the engine during these maneuvers. One part of the Lewis approach utilizes computational fluid dynamics codes to predict the installed performance of inlets for these highly maneuverable aircraft. Full Navier-Stokes (FNS) calculations on the installed F/A-18 inlet at 30 degrees angle of attack, 0 degrees yaw, and a freestream Mach number of 0.2 have been obtained in this study using an algebraic turbulence model with two grids (original and revised). Results obtained with the original grid were used to determine where further grid refinements and additional geometry were needed. In order to account properly for the external effects, the forebody, leading edge extension (LEX), ramp, and wing were included with inlet geometry. In the original grid, the diverter, LEX slot, and leading edge flap were not included due to insufficient geometry definition, but were included in a revised grid. In addition, a thin-layer Navier-Stokes (TLNS) code is used with the revised grid and the numerical results are compared to those obtained with the FNS code. The TLNS code was used to evaluate the effects on the solution using a code with more recent CFD developments such as upwinding with TVD schemes versus central differencing with artificial dissipation. The calculations are compared to a limited amount of available experimental data. The predicted forebody/fuselage surface static pressures compared well with data of all solutions. The predicted trajectory of the vortex generated under the LEX was different for each solution. These discrepancies are attributed to differences in the grid resolution and turbulence modeling. All solutions predict that this vortex is ingested by the inlet. The predicted inlet total pressure recoveries are lower than data and the distortions are higher than data. The results obtained with the revised grid were significantly improved from the original grid results. The original grid results indicated the ingested vortex migrated to the engine face and caused additional distortions to those already present due to secondary flow development. The revised grid results indicate that the ingested vortex is dissipated along the inlet duct inboard wall. The TLNS results indicate the flow at the engine face was much more distorted than the FNS results and is attributed to the pole boundary condition introducing numerical distortions into the flow field

Orientation imaging of macro-sized polysilicon grains on wafers using spatially resolved acoustic spectroscopy

Due to its economical production process polysilicon, or multicrystalline silicon, is widely used to produce solar cell wafers. However, the conversion efficiencies are often lower than equivalent monocrystalline or thin film cells, with the structure and orientation of the silicon grains strongly linked to the efficiency. We present a non-destructive laser ultrasonic inspection technique, capable of characterising large (52 x 76 mm2) photocell's microstructure – measurement times, sample surface preparation and system upgrades for silicon scanning are discussed. This system, known as spatially resolved acoustic spectroscopy (SRAS) could be used to optimise the polysilicon wafer production process and potentially improve efficiency

The SMC SNR 1E0102.2-7219 as a Calibration Standard for X-ray Astronomy in the 0.3-2.5 keV Bandpass

The flight calibration of the spectral response of CCD instruments below 1.5 keV is difficult in general because of the lack of strong lines in the on-board calibration sources typically available. We have been using 1E 0102.2-7219, the brightest supernova remnant in the Small Magellanic Cloud, to evaluate the response models of the ACIS CCDs on the Chandra X-ray Observatory (CXO), the EPIC CCDs on the XMM-Newton Observatory, the XIS CCDs on the Suzaku Observatory, and the XRT CCD on the Swift Observatory. E0102 has strong lines of O, Ne, and Mg below 1.5 keV and little or no Fe emission to complicate the spectrum. The spectrum of E0102 has been well characterized using high-resolution grating instruments, namely the XMM-Newton RGS and the CXO HETG, through which a consistent spectral model has been developed that can then be used to fit the lower-resolution CCD spectra. We have also used the measured intensities of the lines to investigate the consistency of the effective area models for the various instruments around the bright O (~570 eV and 654 eV) and Ne (~910 eV and 1022 eV) lines. We find that the measured fluxes of the O VII triplet, the O VIII Ly-alpha line, the Ne IX triplet, and the Ne X Ly-alpha line generally agree to within +/-10 % for all instruments, with 28 of our 32 fitted normalizations within +/-10% of the RGS-determined value. The maximum discrepancies, computed as the percentage difference between the lowest and highest normalization for any instrument pair, are 23% for the O VII triplet, 24% for the O VIII Ly-alpha line, 13% for the Ne IX triplet, and 19% for the Ne X Ly-alpha line. If only the CXO and XMM are compared, the maximum discrepancies are 22% for the O VII triplet, 16% for the O VIII Ly-alpha line, 4% for the Ne IX triplet, and 12% for the Ne X Ly-alpha line.Comment: 16 pages, 11 figures, to be published in Proceedings of the SPIE 7011: Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray 200