From classroom tutor to hypertext adviser: An evaluation

This paper describes a three‐year experiment to investigate the possibility of making economies by replacing practical laboratory sessions with courseware while attempting to ensure that the quality of the student learning experience did not suffer. Pathology labs are a central component of the first‐year medical undergraduate curriculum at Southampton. Activities in these labs had been carefully designed and they were supervised by lab demonstrators who were subject domain experts. The labs were successful in the eyes of both staff and students but were expensive to conduct, in terms of equipment and staffing. Year by year evaluation of the introduction of courseware revealed that there was no measurable difference in student performance as a result of introducing the courseware, but that students were unhappy about the loss of interaction with the demonstrators. The final outcome of this experiment was a courseware replacement for six labs which included a software online hypertext adviser. The contribution of this work is that it adds to the body of empirical evidence in support of the importance of maintaining dialogue with students when introducing courseware, and it presents an example of how this interaction might be achieved in software

Mutational analysis of a proposed structural element in the SRP9/14p binding site of Schizosaccharomyces pombe SRP RNA

Thesis (B.S.) in Biochemistry--University of Illinois at Urbana-Champaign, 1993.Includes bibliographical references (leaves 28-30)Microfiche of typescript. [Urbana, Ill.]: Photographic Services, University of Illinois, U of I Library, [1993]. 2 microfiches (43 frames): negative.s 1993 ilu n

Elimination of the Depletion Deduction for Fossil Fuels

This article argues that the depletion deduction provision is a misguided incentive that has been falsely analogized and justified, and it should be abolished in order to provide funds to protect and preserve the environment. The additional revenue generated should be used to encourage the development of renewable resources and to remediate the harm caused by the extraction and use of fossil fuels. Specifically, the depletion deduction for reduction in the supply of nonrenewable resources such as coal and oil should be eliminated to (1) ensure certain and equal treatment under the tax laws; (2) encourage development of renewable energy resources thereby abating further environmental harm caused by mining and extraction of fossil fuels; and (3) increase tax revenue to fund reparations for damages caused by coal mining and oil extraction

Difused Surface Water: Reasonable Use Has Become the Common Enemy

Diffused surface water, caused by precipitation, should be treated as a necessary asset to replenish aquifers used for drinking water, and not as waste to be disposed of by landowners. Groundwater aquifers were created, and can only be replenished, by precipitation that is allowed to seep underground. Ninety-nine percent of the drinking water for people in rural areas of America comes from groundwater aquifers. These aquifers are in danger of being contaminated or depleted, which could result in severe water shortages very soon. Legislators have failed to enact a comprehensive system to regulate the use of aquifers, relying instead on a plethora of conflicting federal laws, inconsistent state laws, and town ordinances. Courts have dealt with precipitation, and the storm runoff that results, as a “common enemy” of landowners, something to be disposed of, rather than a valuable and necessary asset. The existence of four different standards to impose liability for diversion of diffused surface water is burdensome, creates confusion and a lack of certainty and predictability, and is fundamentally unfair. These four standards are also ineffective in protecting the recharge of aquifers. A single standard should be adopted by all courts, with a significant amount of weight given to the impact of the defendant’s actions on the recharge of aquifers. This article suggests the standard and proposed factors to be considered by courts