Pioneer 10 and Voyager observations of the interstellar medium in scattered emission of the He584 A and H Lya 1216 A lines

The combination of Pioneer photometric and Voyager spectrometric observations of EUV interstellar-interplanetary emissions in the region beyond 5 A was applied to a determination of atomic hydrogen and helium densities. These density estimates obtained from direct measurement of scattered radiation depend on absolute calibration of the instruments in the same way as other earlier determinations based on the same method. However, the spacecraft data were combined with daily full sun averages of the H Lyman 1216 A line obtained by the Solar Mesospheric Explorer satellite to obtain a measure of atomic hydrogen density independent of instrument absolute calibration. The method depends on observations of long and short term temporal variability of the solar line over a one year period, and the fact that the ISM is optically thick. The density estimates from preliminary work on these observations are H = 0.12 cu cm and H = .016 cu cm, giving a density ratio close to the cosmic abundance value in contrast to some earlier results indicating a depletion of atomic hydrogen. Estimates were obtained of galactic background emissions in the signals of both spacecraft

Development of electrical test procedures for qualification of spacecraft against EID. Volume 1: The CAN test and other relevant data

A combined experimental and analytical program to develop system electrical test procedures for the qualification of spacecraft against damage produced by space-electron-induced discharges (EID) occurring on spacecraft dielectric outer surfaces is described. The data on the response of a simple satellite model, called CAN, to electron-induced discharges is presented. The experimental results were compared to predicted behavior and to the response of the CAN to electrical injection techniques simulating blowoff and arc discharges. Also included is a review of significant results from other ground tests and the P78-2 program to form a data base from which is specified those test procedures which optimally simulate the response of spacecraft to EID. The electrical and electron spraying test data were evaluated to provide a first-cut determination of the best methods for performance of electrical excitation qualification tests from the point of view of simulation fidelity

Executing the Will of the Voters?: A Roadmap to Mend or End the California Legislature’s Multi-Billion-Dollar Death Penalty Debacle

Since reinstating the death penalty in 1978, California taxpayers have spent roughly $4 billion to fund a dysfunctional death penalty system that has carried out no more than 13 executions. The current backlog of death penalty cases is so severe that most of the 714 prisoners now on death row will wait well over 20 years before their cases are resolved. Many of these condemned inmates will thus languish on death row for decades, only to die of natural causes while still waiting for their cases to be resolved. Despite numerous warnings of the deterioration of California’s capital punishment system and its now imminent collapse, the Legislature has repeatedly failed to enact measures that would improve this death row deadlock. At the same time, voters have continued to expand the death penalty through the direct voter initiative process to increase the number of death-eligible crimes. This Article uncovers the true costs of administering the death penalty in California by tracing how much taxpayers are spending for death penalty trials versus non–death penalty trials and for costs incurred due to the delay from the initial sentence of death to the execution. In addition, the Article examines how the voter initiative process has misled voters into agreeing to the wasteful expenditure of billions of dollars on a system that has been ineffective in carrying out punishment against those who commit the worst of crimes. Our research reveals that in every proposition expanding the list of deatheligible crimes between 1978 and 2000, the information provided by the Legislative Analyst’s Office in the Voter Information Guides told voters that the fiscal impact of these initiatives would be “none,” “unknown,” “indeterminable,” or “minor.” Relying, at least in part, on this information, Californians have used the voter initiative process to enact “tough on crime” laws that, without adequate funding from the Legislature to create an effective capital punishment system, have wasted immense taxpayer resources and created increasingly serious due process problems. Finally, this Article analyzes corrective measures that the Legislature could take to reduce the death row backlog, and proposes several voter initiatives that California voters may wish to consider if the Legislature continues to ignore the problem. It is the authors’ view that unless California voters want to tolerate the continued waste of billions of tax dollars on the state’s now-defunct death penalty system, they must either demand meaningful reforms to ensure that the system is administered in a fair and effective manner or, if they do not want to be taxed to fund the needed reforms, they must recognize that the only alternative is to abolish the death penalty and replace it with a sentence of life imprisonment without the possibility of parole

From Forbidden Coronal Lines to Meaningful Coronal Magnetic Fields

We review methods to measure magnetic fields within the corona using the polarized light in magnetic-dipole (M1) lines. We are particularly interested in both the global magnetic-field evolution over a solar cycle, and the local storage of magnetic free energy within coronal plasmas. We address commonly held skepticisms concerning angular ambiguities and line-of-sight confusion. We argue that ambiguities are in principle no worse than more familiar remotely sensed photospheric vector-fields, and that the diagnosis of M1 line data would benefit from simultaneous observations of EUV lines. Based on calculations and data from eclipses, we discuss the most promising lines and different approaches that might be used. We point to the S-like [Fe {\sc XI}] line (J=2 to J=1) at 789.2nm as a prime target line (for ATST for example) to augment the hotter 1074.7 and 1079.8 nm Si-like lines of [Fe {\sc XIII}] currently observed by the Coronal Multi-channel Polarimeter (CoMP). Significant breakthroughs will be made possible with the new generation of coronagraphs, in three distinct ways: (i) through single point inversions (which encompasses also the analysis of MHD wave modes), (ii) using direct comparisons of synthetic MHD or force-free models with polarization data, and (iii) using tomographic techniques.Comment: Accepted by Solar Physics, April 201

INTRAMUSCULAR COLLAGEN AND SERUM HYDROXYPROLINE AS RELATED TO IMPLANTED TESTOSTERONE, DIHYDROTESTOSTERONE AND ESTRADIOL-17β IN GROWING WETHERS

Relationships of implanted testosterone, dihydrotestosterone and estradiol-17β to collagen degradation and intramuscular collagen concentration and stability were determined. Intramuscular collagen content, solubility and shrinkage temperature and serum hydroxyproline were analyzed in groups of six rams, wethers, and wethers implanted with various levels of testosterone or dihydrotestosterone (Exp. 1) and groups of 10 rams, wethers and wethers implanted with estradiol-17β, dihydrotestosterone or a combination of these two steroids (Exp. 2). Intramuscular collagen content in both experiments was higher (P \u3c .05) in muscles of rams than in muscles of wethers. Administration of the highest level of testosterone to wethers raised (P \u3c .05) total and insoluble intramuscular collagen to concentrations noted in rams. Administration of the testosterone metabolite, dihydrotestosterone, to wethers had no effect on intramuscular collagen. Administration of estradiol-17β to wethers tended to raise concentrations of intramuscular collagen so that they were no longer lower (P \u3c .05) than those in rams. Collagen stability as measured by solubility and thermal shrinkage temperature did not differ among rams, wethers or implanted wethers (P \u3e .05). Increases in collagen accretion due to hormone administration were observed to be the result of increases in the insoluble portion of the intramuscular collagen (P \u3c .05)

INTRAMUSCULAR COLLAGEN AND SERUM HYDROXYPROLINE AS RELATED TO IMPLANTED TESTOSTERONE, DIHYDROTESTOSTERONE AND ESTRADIOL-17β IN GROWING WETHERS

Relationships of implanted testosterone, dihydrotestosterone and estradiol-17β to collagen degradation and intramuscular collagen concentration and stability were determined. Intramuscular collagen content, solubility and shrinkage temperature and serum hydroxyproline were analyzed in groups of six rams, wethers, and wethers implanted with various levels of testosterone or dihydrotestosterone (Exp. 1) and groups of 10 rams, wethers and wethers implanted with estradiol-17β, dihydrotestosterone or a combination of these two steroids (Exp. 2). Intramuscular collagen content in both experiments was higher (P \u3c .05) in muscles of rams than in muscles of wethers. Administration of the highest level of testosterone to wethers raised (P \u3c .05) total and insoluble intramuscular collagen to concentrations noted in rams. Administration of the testosterone metabolite, dihydrotestosterone, to wethers had no effect on intramuscular collagen. Administration of estradiol-17β to wethers tended to raise concentrations of intramuscular collagen so that they were no longer lower (P \u3c .05) than those in rams. Collagen stability as measured by solubility and thermal shrinkage temperature did not differ among rams, wethers or implanted wethers (P \u3e .05). Increases in collagen accretion due to hormone administration were observed to be the result of increases in the insoluble portion of the intramuscular collagen (P \u3c .05)

Interpretation of Pioneer 10 heliospheric Ly ? glow data obtained beyond 30 AU

International audienceThe Pioneer 10 (P10) Ly ? dataset is the only dataset that is available for the study of the very local interstellar medium (VLISM) in the downstream direction relative to the incoming interstellar neutral hydrogen flow, at very large distances from the sun. Selected P10 data obtained in 1984 and 1986 at distances between 31.81 to 32.25 and 37.29 to 37.74 AU have been used to estimate the local interstellar neutral hydrogen and proton densities. State of the art, stationary neutral-plasma and radiative transfer models have been used in the interpretation of the data. No stationary VLISM heliospheric model was found that best fitted both the P10 1984 data and the 1986 data. The failure to find a single best fit model is most probably due to the fact that the heliospheric model used here did not incorporate time-dependence and interstellar magnetic field effects

Evidence Concerning Instabilities of the Distant Geomagnetic Field: Pioneer I

The search-coil magnetometer carried on Pioneer I has yielded evidence of complex geomagnetic behavior at great distances from the earth. This paper is intended to report only some preliminary observations; in particular, what appears to be directional instability in the field. A comprehensive statistical analysis, to be reported later, is still in progress

Pioneer 10 and Voyager Observations of the Interstellar Medium in Scattered Emission of the H 584 A and H Lya 1216 A Lines

The combination of Pioneer photometric and Voyager spectrometric observations of EUV interstellar-interplanetary emissions in the region beyond 5 AU have been applied to a determination of atomic hydrogen and helium densities. These density estimates obtained from direct measurement of scattered radiation depend on absolute calibration of the instruments, in the same way as other earlier determinations based on the same method. However. we have combined the spacecraft data with daily full sun averages of the H Lya 1216 A line obtained by the Solar Mesospheric Explorer (SME) satellite, to obtain a measure of atomic hydrogen density independent of instrument absolute calibration. The method depends on observations of long and short term temporal variability of the solar line over a 1 year period, and the fact that the ISM is optically thick. The density estimates from preliminary work on these observations are (H) = 0.12 cm(sup 2) and (He) = .016 cm(sup 2), giving a density ratio close to the cosmic abundance value, in contrast to some earlier results indicating a depletion of atomic hydrogen. We have obtained estimates of galactic background emissions in the signals of both spacecraft

Spectral simplicity and asymptotic separation of variables

We describe a method for comparing the real analytic eigenbranches of two families of quadratic forms that degenerate as t tends to zero. One of the families is assumed to be amenable to `separation of variables' and the other one not. With certain additional assumptions, we show that if the families are asymptotic at first order as t tends to 0, then the generic spectral simplicity of the separable family implies that the eigenbranches of the second family are also generically one-dimensional. As an application, we prove that for the generic triangle (simplex) in Euclidean space (constant curvature space form) each eigenspace of the Laplacian is one-dimensional. We also show that for all but countably many t, the geodesic triangle in the hyperbolic plane with interior angles 0, t, and t, has simple spectrum.Comment: 53 pages, 2 figure