7,909 research outputs found
Analytical studies of nuclear light bulb engine radiant heat transfer and performance characteristics
Analytical model of nuclear light bulb engine radiant heat transfer and engine performance, dynamics and control, heat loads and shutdown characteristic
A three stage model for adsorption of nonionic surfactants
Copyright @ 1993 American Institute of Physics.A three stage model for the adsorption of nonionic surfactants is proposed which makes use of existing theory from studies of random sequential adsorption. The model is simulated and the adsorption curves are found. The theory of random sequential adsorption is used to calculate the coverage exactly at the end of each of the three stages
Responses of Hyalella azteca and Ceridaphnia dubia to reservoir sediments following Chelated Copper Herbicide Applications
In response to nuisance growths of algae and vascular
plants, such as dioecious hydrilla (
Hydrilla verticillata
L.f.
Royle), copper formulations have been applied in lakes and
reservoirs for a number of years. Concerns have arisen regarding
the long-term consequences of copper applications
and those concerns have appropriately focused on sediment
residues. In this study, we evaluated the toxicity of sediments
from treated (for a decade) and untreated areas in Lake
Murray, South Carolina and estimated the capacity of those
sediments to bind additional copper. Two sentinel aquatic invertebrates,
Hyalella azteca
Saussure and
Ceriodaphnia dubia
Richard, were used to measure residual toxicity of treated
and untreated sediments from the field and after laboratory
amendments. (PDF has 5 pages.
The Revival of Climate Change Science in U.S. Courts
Science never has been the obstacle to the recognition of climate change. Since Arhennius did his original calculations in 1896, the scientific world was quite aware of the prospect that industrial-age levels of carbon dioxide pollution would result in increasing global temperatures and acidification of the world’s oceans. The brilliant—and striking—graphical display that we know today as the Keeling Curve started in 1957, and year after year it records the relentless upward march of these atmospheric pollutant loadings. Through the years, necessarily, a vast number of scientific warnings, publications, findings, and predictions would be offered to the public at large, urging action to combat climate change. The pages in this journal devoted to the issue of ocean acidification are but the latest manifestation of this relentless march of science towards more understanding and deeper appreciation of the gravity of these issues. In contrast to the slow (if erratic) march of science, the political response to climate change—particularly in the United States—has been enthusiastically absent. Even the sufferers from this political nullification policy have tipped their hats, conceding an insidious effectiveness of “just say no” tactics. There is an eerie concordance of interest between the corporate takeover of Washington, D.C. by lobbyists and the conspicuous inaction on climate change. This political denial of climate change in Washington, D.C., has endured for close to thirty years
The Revival of Climate Change Science in U.S. Courts
Science never has been the obstacle to the recognition of climate change. Since Arhennius did his original calculations in 1896, the scientific world was quite aware of the prospect that industrial-age levels of carbon dioxide pollution would result in increasing global temperatures and acidification of the world’s oceans. The brilliant—and striking—graphical display that we know today as the Keeling Curve started in 1957, and year after year it records the relentless upward march of these atmospheric pollutant loadings.
Through the years, necessarily, a vast number of scientific warnings, publications, findings, and predictions would be offered to the public at large, urging action to combat climate change. The pages in this journal devoted to the issue of ocean acidification are but the latest manifestation of this relentless march of science towards more understanding and deeper appreciation of the gravity of these issues.
In contrast to the slow (if erratic) march of science, the political response to climate change—particularly in the United States—has been enthusiastically absent. Even the sufferers from this political nullification policy have tipped their hats, conceding an insidious effectiveness of “just say no” tactics. There is an eerie concordance of interest between the corporate takeover of Washington, D.C. by lobbyists and the conspicuous inaction on climate change. This political denial of climate change in Washington, D.C., has endured for close to thirty years
A determination of the reactivity of some esters of oxalic acid with certain organic bases
Project (B.S.)--University of Kansas, Chemical Engineering, 1922. ; Includes bibliographic references
Improvement Strategies for the Design and Implementation of a Half-Day Medical Careers Exploration Program for Young Women
High quality career exploration programming has the potential to increase student self- efficacy, diversify professions, and address community job fulfillment needs. The purpose of this inquiry to analyze the implementation and design of a brief medical career exploration program for young women in order to improve the program prior to producing a program hosting guide for widespread use. The “I Look Like a Cardiologist” conference is a half-day mentoring and career exploration conference for young women interested in medicine in Western Pennsylvania. The goal of the conference is to increase student knowledge about and enthusiasm for cardiology through lectures, simulations, and mentoring sessions in order to address the underrepresentation of women within the field of cardiology by inspiring the students to more deeply consider a career in the field. Pre-conference, post-conference, and two-month post-conference Likert-scale surveys were administered, and the results analyzed. Additionally, 12 participants were interviewed, and the interviews were transcribed, coded, and analyzed for themes in order to provide further feedback on conference implementation and design. The results of the quantitative and qualitative data analysis led to the creation of a program implementation guide for other medical departments looking to develop brief career exploration programs for their target populations
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