Opening the Box: Information Technology, Work Practices, and Wages

There is substantial debate about the effects of technological change on wages. We argue that the relationship between technology and wages is context-dependent. To test this proposition, we use data gathered from 303 U.S. bank branches and examine empirically the association between different kinds of information technology (IT), work practices, and wages for the job of customer service representative in bank branches. We also test for interaction effects between IT and work practices. Our results suggest that context sometimes matters: the wage outcomes for IT that automates basic tasks are moderated by high-involvement work practices, while IT that improves the quality of organizational information is related positively to wage outcomes independently of context.

Montane lakes (lagoons) of the New England Tablelands Bioregion

The vegetation of montane lagoons of the New England Tablelands Bioregion, New South Wales is examined using flexible UPGMA analysis of frequency scores on all vascular plant taxa, charophytes and one liverworts. Seven communities are described: 1. Hydrocotyle tripartita – Isotoma fluviatilis – Ranunculus inundatus – Lilaeopsis polyantha herbfield; 2. Eleocharis sphacelata – Potamogeton tricarinatus sedgeland; 3. Eleocharis sphacelata – Utricularia australis – Isolepis fluitans, herbfield; 4. Utricularia australis – Nitella sonderi herbfield; 5. Eleocharis sphacelata – Utricularia australis – Ricciocarpus natans sedgeland; 6. Carex gaudichaudiana – Holcus lanatus – Stellaria angustifolia sedgeland; 7. Cyperus sphaeroides – Eleocharis gracilis – Schoenus apogon – Carex gaudichaudiana sedgeland. 58 lagoons were located and identified, only 28% of which are considered to be intact and in good condition. Two threatened species (Aldovandra vesiculosa and Arthaxon hispidus) and three RoTAP-listed taxa were encountered during the survey

Combustion synthesis of ceramic and metal-matrix composites

Combustion synthesis or self-propagating high temperature synthesis (SHS) is effected by heating a reactant mixture, to above the ignition temperature (Tig) whereupon an exothermic reaction is initiated which produces a maximum or combustion temperature, Tc. These SHS reactions are being used to produce ceramics, intermetallics, and composite materials. One of the major limitations of this process is that relatively high levels of porosity, e.g., 50 percent, remain in the product. Conducting these SHS reactions under adiabatic conditions, the maximum temperature is the adiabatic temperature, Tad, and delta H (Tad) = 0, Tad = Tc. If the reactants or products go through a phase change, the latent heat of transformation needs to be taken into account

A comparison of Olpidium isolates from a range of host plants using internal transcribed spacer sequence analysis and host range studies

Olpidium brassicae is a ubiquitous obligate root-infecting fungal pathogen. It is an important vector of a wide range of plant viruses. Olpidium isolates that infected brassica plants did not infect lettuce plants and vice-versa. Host range tests, PCR amplification and sequencing of the internal transcribed spacer (ITS) and 5.8S regions of 25 Olpidium isolates from brassica, carrot, cucumber and lettuce originating from four continents revealed differences between isolates. Based on their ability to infect lettuce and brassicas and the differences between their ITS1, 5.8S and ITS2 regions they could be separated into a number of distinct groups. Comparisons with other published sequences revealed two distinct genetic groups of brassica-infecting isolates, two distinct groups of lettuce-infecting isolates, one of which contained a carrot-infecting isolate and a distinct group comprising a cucumber-infecting isolate and a melon-infecting isolate. The possibility of the isolates belonging to three distinct species is discussed

Principles of Contract Law Applied to Entertainment and Sports Contracts: A Model for Balancing the Rights of the Industry with Protecting the Interests of Minors

This Article discusses the context of common law and statutory materials dealing with minors who participate in the entertainment and sports fields. The Article describes the changes undertaken as a result of several notorious cases involving prominent child actors, and how the California legislature dealt with issues ranging from set asides of income, approval of contracts by a competent court of jurisdiction, recognition of the legitimate interests of all parties to the contract, to principles under which a minor would be precluded from disaffirming a contract. The Article then applies and extends the principles developed in entertainment contracts to minors who participate in professional athletics and offers concrete suggestions for perfecting a balance in interests by focusing on assuring the minor with representation by “qualified counsel experienced with entertainment industry law and practices

High-Frequency Measurements Of The Spectrum Of Sagittarius A*

We report near-simultaneous interferometric measurements of the spectrum of Sagittarius A* over the 5-354 GHz range and single-dish observations that have yielded the first detection of Sgr A* at 850 GHz. We confirm that Sgr A*'s spectrum rises more steeply at short millimeter wavelengths than at centimeter wavelengths, leading to a near-millimeter/submillimeter excess that dominates its luminosity. Below 900 GHz, Sgr A*'s observed luminosity is 70 +/- 30 L.. A new upper limit to Sgr A*'s 24.3 mu m flux, together with a compilation of other extant IR data, imply a far-infrared spectral turnover, which can result from either an intrinsic synchrotron cutoff or excess extinction near Sgr A*. If the former applies, Sgr A*'s total synchrotron luminosity is <10(3) L., while in the latter case it is <3 x 10(4) L. if spherical symmetry also applies.NSF AST96-15025, AST96-13717Astronom

Ursinus College Bulletin Vol. 10, No. 4, January 1894

A digitized copy of the January 1894 Ursinus College Bulletin.https://digitalcommons.ursinus.edu/ucbulletin/1091/thumbnail.jp

Ursinus College Bulletin Vol. 10, No. 2, November 1893

A digitized copy of the November 1893 Ursinus College Bulletin.https://digitalcommons.ursinus.edu/ucbulletin/1089/thumbnail.jp