Collective Bargaining Laws and Threat Effects of Unionism in the Determination of Police Compenstation

This study examines the effect of public sector unions on compensation packages. The model of the compensation determination process incorporates distinctive institutional aspects of public sector labor relations, particularly the differences in collective bargaining laws across states. The model is estimated using data on over 800 municipal police departments. Our results indicate that the effect of public sector unions depend critically on these institutional features of the public sector. First, unionism thrives only in those states with protective legislation. Second, in states where unionism has flourished,unionism exerts a strong upward pressure on both union and nonunion compensation packages. Cross section estimates for 1978 indicate that salaries of union and nonunion departments in highly unionized states are some 30% higher than are the salaries in states with low levels of unionism. However, no significant difference between union and nonunion salaries within states is observed. Before-after estimates of the "state-wide union effect" are more modest (9.9% to 18.1%). Finally, this "state-wide union effect" on union and nonunion departments appears to 'be even more pronounced on fringe benefits than it is on salaries. The net result is that in highly unionized states, a greater proportion of the larger compensation packages is paid in fringe benefits.

Unfree and Equal: Challenging G.A. Cohen on the Compatibility between Freedom of Occupational Choice and Equality

In his book, Rescuing Justice and Equality, G.A. Cohen defends the claim that in a just society it is possible to have Pareto efficiency, equality and freedom of occupational choice. Cohen does this in an attempt to refute the arguments of philosophers that have seen these concepts as at odds with each other. Cohen initially formulates the relationship between these three concepts as a trilemma. If we accept any two, then we must reject the third. Cohen’s conclusion is that no such trilemma exists, since in a just society equality, Pareto efficiency and freedom of occupational choice harmonize. To motivate this claim, Cohen argues that people in a just society are under the influence of an egalitarian ethos, which informs their decisions about what is just. I offer a challenge, which results in the rejection of two aspects of Cohen’s argument. My challenge consists in the formulation of two competing theses motivated by the rejection of (i) Cohen’s claim that rejection of freedom of occupational choice requires the implementation of coercive and extremely invasive state policies that will place people into socially useful occupations and (ii) his claim that informational deficits prevent the implementation of any such policy. I reject the first claim by arguing that we can have more nuanced views in which freedom of occupational choice is limited rather than completely done away with. I reject the second claim by arguing that we needn’t obtain the amount of information Cohen demands. The two competing views I formulate are (a) that the state can and should use people’s cognitive biases to pursue Pareto efficiency and equality and (b) that people in the just society can individually correct for the biases that lead to inegalitarain distributions. I close by arguing that the latter view may constitute a rejection of freedom of occupational choice

Preliminary Evaluation of a Test for Biological Background

A test, composed of 140 items, including names of men and terms associated with biology, was given to 65 undergraduate students with various majors and 25 graduate students in zoology. The undergraduates\u27 records were analyzed to ascertain the effect of giving the test, with and without time limits, to comparable groups. On the basis of data obtained, a revision of the test was made using 100 select items. This revision was given to 18 graduate and 33 undergraduate students. Correlation of odd versus even items for the separate groups yielded reliability coefficients of + .90 after correction for length. A correlation of r, + .53 was obtained between the final examination grades of nineteen persons in one class in biology and the revised test. The results are offered only as preliminary to a more complete study being carried out

Iron mineralogy of a Hawaiian palagonitic soil with Mars-like spectral and magnetic properties

Visible and near-IR spectral data for some palagonitic soils from Mauna Kea, Hawaii, are similar to corresponding spectral data for Mars. It is important to understand the composition, distribution, and mineralogy of the ferric-bearing phases for the best spectral analogues because the correspondence in spectral properties implies that the nature of their ferric-bearing phases may be similar to those on Mars. In order to constrain interpretations of the Martian data, a variety of palagonitic soils should be studied in order to establish to what extent differences in their spectral data correspond to differences in the mineralogy of their ferric-bearing phases. Spectral (350-2100 nm), Mossbauer, magnetic, and some compositional data for one of a suite of Hawaiian palagonitic soils are presented. The soil (HWMK1) was collected below the biologically active zone from the sides of a gully cut at 9000 ft elevation on Mauna Kea. The soil was wet sieved with freon into seven size fractions less than 1 mm

Parallel Multi-Hypothesis Algorithm for Criticality Estimation in Traffic and Collision Avoidance

Due to the current developments towards autonomous driving and vehicle active safety, there is an increasing necessity for algorithms that are able to perform complex criticality predictions in real-time. Being able to process multi-object traffic scenarios aids the implementation of a variety of automotive applications such as driver assistance systems for collision prevention and mitigation as well as fall-back systems for autonomous vehicles. We present a fully model-based algorithm with a parallelizable architecture. The proposed algorithm can evaluate the criticality of complex, multi-modal (vehicles and pedestrians) traffic scenarios by simulating millions of trajectory combinations and detecting collisions between objects. The algorithm is able to estimate upcoming criticality at very early stages, demonstrating its potential for vehicle safety-systems and autonomous driving applications. An implementation on an embedded system in a test vehicle proves in a prototypical manner the compatibility of the algorithm with the hardware possibilities of modern cars. For a complex traffic scenario with 11 dynamic objects, more than 86 million pose combinations are evaluated in 21 ms on the GPU of a Drive PX~2

Malaria intervention scale-up in Africa : effectiveness predictions for health programme planning tools, based on dynamic transmission modelling

Scale-up of malaria prevention and treatment needs to continue to further important gains made in the past decade, but national strategies and budget allocations are not always evidence-based. Statistical models were developed summarizing dynamically simulated relations between increases in coverage and intervention impact, to inform a malaria module in the Spectrum health programme planning tool.; The dynamic Plasmodium falciparum transmission model OpenMalaria was used to simulate health effects of scale-up of insecticide-treated net (ITN) usage, indoor residual spraying (IRS), management of uncomplicated malaria cases (CM) and seasonal malaria chemoprophylaxis (SMC) over a 10-year horizon, over a range of settings with stable endemic malaria. Generalized linear regression models (GLMs) were used to summarize determinants of impact across a range of sub-Sahara African settings.; Selected (best) GLMs explained 94-97 % of variation in simulated post-intervention parasite infection prevalence, 86-97 % of variation in case incidence (three age groups, three 3-year horizons), and 74-95 % of variation in malaria mortality. For any given effective population coverage, CM and ITNs were predicted to avert most prevalent infections, cases and deaths, with lower impacts for IRS, and impacts of SMC limited to young children reached. Proportional impacts were larger at lower endemicity, and (except for SMC) largest in low-endemic settings with little seasonality. Incremental health impacts for a given coverage increase started to diminish noticeably at above ~40 % coverage, while in high-endemic settings, CM and ITNs acted in synergy by lowering endemicity. Vector control and CM, by reducing endemicity and acquired immunity, entail a partial rebound in malaria mortality among people above 5 years of age from around 5-7 years following scale-up. SMC does not reduce endemicity, but slightly shifts malaria to older ages by reducing immunity in child cohorts reached.; Health improvements following malaria intervention scale-up vary with endemicity, seasonality, age and time. Statistical models can emulate epidemiological dynamics and inform strategic planning and target setting for malaria control

The Black Hole Mass-Bulge Luminosity Relationship for Active Galactic Nuclei from Reverberation Mapping and Hubble Space Telescope Imaging

We investigate the relationship between black hole mass and bulge luminosity for AGNs with reverberation-based black hole mass measurements and bulge luminosities from two-dimensional decompositions of Hubble Space Telescope host galaxy images. We find that the slope of the relationship for AGNs is 0.76-0.85 with an uncertainty of ~0.1, somewhat shallower than the M_BH \propto L^{1.0+/-0.1} relationship that has been fit to nearby quiescent galaxies with dynamical black hole mass measurements. This is somewhat perplexing, as the AGN black hole masses include an overall scaling factor that brings the AGN M_BH-sigma relationship into agreement with that of quiescent galaxies. We discuss biases that may be inherent to the AGN and quiescent galaxy samples and could cause the apparent inconsistency in the forms of their M_BH-L_bulge relationships.Comment: 5 pages, 3 figures and 2 tables, submitted to ApJ Letter

Reliability of the O\u27Connor Block Test

The O\u27Connor Block test is widely known and is manufactured and sold without any very definite information as to its reliability and validity. In fact it seems to be used without great uniformity in method of administration. Whenever mechanical ability is discussed one is likely to hear of this test along with several others. No published studies of the O\u27Connor Block test of any great importance have been made on its relative merits and its reliability and validity. Several years ago exploratory studies on this test, along with others designed to measure mechanical aptitude and ingenuity, were conducted in the Driving Laboratory at Iowa State College. Various mechanical tests were used to ascertain their possible relation to driving. Although the O\u27Connor Block Test seems to be looked upon with some askance in some quarters, it did seem to screen out persons who would require considerable extra attention while learning to drive. This cue was followed up still further and a study using the O\u27Connor test was reported by Miller and Lauer (1946). A low positive correlation with driving performance was obtained but the subjects were largely Orientals and their driving performance rather irregular. Also there was some question as to the reliability of the test

Detailed Surface Photometry of Dwarf Elliptical and Dwarf S0 Galaxies in the Virgo Cluster

We analyze new V-band images of 14 dwarf S0 galaxies and 10 dwarf elliptical galaxies in the Virgo Cluster, in combination with R-band images of 70 dwarf elliptical galaxies from an earlier paper. We compute the intensity-weighted mean ellipticity, the mean deviations from elliptical isophotes, and a newly defined parameter to measure isophotal twists. We also fit each major-axis profile to a power law Σ(a) α exp[-(a/as)n], where n is allowed to vary. Consistent with other studies of the Virgo dwarf ellipticals, we find that the profile shapes for the entire sample is strongly peaked near n=1 (exponential profiles) and that no galaxies have n=1/4 (de Vaucouleurs profile). The faintest galaxies all have nearly exponential profiles, while the brighter ones on average have n<1. The correlation between ellipticity and the boxy/disky parameter is similar to that of large elliptical galaxies, suggesting that dwarfs may also be divided into two groups with differing internal dynamics. The Virgo dEs also show a greater degree of isophotal twisting than more luminous elliptical galaxies. There does not seem to be any combination of parameters from the surface photometry that statistically correlates with the dE/dS0 designation: in particular, the dS0 galaxies do not, on average, have more pointed (disky) isophotes than the dEs

Composition and maturity of the 60013/14 core

The 60013/14 double drive tube (62 cm deep) is one of three regolith cores taken 35-40 m apart in a triangular array on the Cayley plains at station 10' (LM/ALSEP), Apollo 16. This trio, which includes double drive tube 60009/10 (59 cm deep) and deep drill core 60001-7 (220 cm), is the only such array of cores returned from the Moon. The top 45 cm of 60013/14 is mature, as is surface reference soil 60601 taken nearby. Maturity generally decreases with depth, with soil below 45 cm being submature. The zone of lowest maturity (34 is less than or equal to I(sub s)/FeO is less than 50) extends from 46 to 58 cm depth, and corresponds to the distinct region of light-colored soil observed during core processing. In the other two cores, most of the compositional variation results from mixing between fine-grained, mature soil with 10-11 micro-g/g Sc and coarse-grained ferroan anorthosite consisting of greater than 99% plagioclase with less than 0.5 micro-g/g Sc. This is most evident in 60009/10 which contains a high abundance of plagioclase at about 54 cm depth (minimum Sc: 3-4 micro-g/g); a similar zone occurs in 60001-7 at 17-22 cm (MPU-C), although it is not as rich in plagioclase (minimum Sc: 6-7 micro-g/g). Compositional variations are less in 60013/14 than in the other two cores (range: 7.9-10.0 micro-g/g Sc), but are generally consistent with the 'plagioclase dilution' effect seen in 60009/10, i.e., most 60013/14 samples plot along the mixing line of 60009/10. However, a plagioclase component is not the cause of the lower maturity and lighter color of the unit at 46-58 cm depth in 60013/14. Many of the samples in this zone have distinctly lower Sm/Sc ratios than typical LM-area soils and plot off the mixing trend defined by 60009/10. This requires a component with moderately high Sc, but low-Sm/Sc, such as feldspathic fragmental breccia (FFB) or granulitic breccia. A component of Descartes regolith, such as occurs at North Ray Crater (NRC) and which is rich in FFB, could account for the composition of these soils (i.e., a 3:1 mixture of 60601 and NRC soil). It seems unlikely that NRC ejecta would occur half a meter deep at the LM station, thus this low-Sm/Sc component may result from an older, local crater that penetrated the Cayley surface layer and excavated underlying Descartes material, as did North Ray Crater. There is no evidence for such a unit or component in the other two cores. Soil below the light-colored unit (58-62) cm has 'typical' Sm/Sc ratios, but the lowest absolute Sc concentrations, i.e., it is compositionally equivalent to a mixture of surface soil and plagioclase such as that in ferroan anorthosite. This is the only soil that might be related to the plagioclase-rich units in the other two cores. Except for the mature soil at the top of each core and, perhaps, the plagioclase-rich layers, there is little compositional evidence for any common unit among the three cores. Soil corresponding to the mare-glass-bearing unit (MPU-B) and regolith-breccia-bearing unit (MPU-A) of 60001-7 do not occur in 60013/14 or 60009/10