6,243 research outputs found
A system of three-dimensional complex variables
Some results of a new theory of multidimensional complex variables are reported, including analytic functions of a three-dimensional (3-D) complex variable. Three-dimensional complex numbers are defined, including vector properties and rules of multiplication. The necessary conditions for a function of a 3-D variable to be analytic are given and shown to be analogous to the 2-D Cauchy-Riemann equations. A simple example also demonstrates the analogy between the newly defined 3-D complex velocity and 3-D complex potential and the corresponding ordinary complex velocity and complex potential in two dimensions
Data Mining and User Profiling for An E-Commerce System. Proceedings of the 1st International Conference on Fuzzy Systems and Knowledge Discovery
Explaining Showering: a Discussion of the Material, Conventional, and Temporal Dimensions of Practice
This article considers the increasing popularity of showering in the UK. We use this case as a means of exploring some of the dimensions and dynamics of everyday practice. Drawing upon a range of documentary evidence, we begin by sketching three possible explanations for the current constitution of showering as a private, increasingly resource-intensive routine. We begin by reviewing the changing infrastructural, technological, rhetorical and moral positioning of showering. We then consider how the multiple and contingent constituents of showering are arranged and re-arranged in and through the practice itself. In taking this approach, we address a number of more abstract questions about the relation between practices, technologies and infrastructures and about what these relationships mean for the fixity and fluidity of ordinary routines and for associated patterns of consumption. The result is a method that allows us to analyze the ways in which material cultures and conventions are reproduced and transformed. This has practical implications for those seeking to contain the environmental consequences of resource-intensive practices.Xx
CONTRACT FINISHING FOR NEW ENTRANTS IN PORK PRODUCTION
The pork production industry is a far different industry today than it was fifty, twenty, or even five years ago. On diversified Midwestern farms during the mid-to-late 20th century, the swine enterprise was labeled "the mortgage lifter". The hogs added value to home-produced feedstuffs such as corn and increased the income from a given acreage base. As farm mechanization and technology rapidly developed, farms became larger and less diversified as livestock disappeared from many farmsteads. In this paper, we address the question whether swine units can be introduced to non-livestock farms via a coordinated agreement for the grower-finisher phase and make these farms more profitable. To do this, we first describe some of the changes that have taken place in the pork industry. Second, production contracts and grower payments are introduced. Next, we move on to issues of manure management and the value of manure to non-livestock farms. Finally, in the Appendix, financial analyses for sample contract finishing contracts are laid out to help farmers determine if contract finishing could benefit their farming operations.Livestock Production/Industries,
Integrating Web Services into Agentcities
This document describes how to make Web Services available to agents in an Agentcities environment and how to make agent-based services available to Web Service servers in a Web Services environment
An analysis of the impact of federal funds authorized by the 1963 Vocational Education Act, as amended, on program development in the area schools of Iowa
The Attorney General and the Charitable Trust Act - Wills, Contest and Construction
In Ohio the Attorney General shall appear in any court or tribunal in which the state is interested. The common law interpretation of the duties of the Attorney General regarding charitable trusts in the state of Ohio has been supplanted by statutory law which is enumerated in Sections 109.23-109.33 of the Ohio Revised Code, often referred to as the Charitable Trusts Act
Thermal rearrangements of unsaturated and strained organosilanes and their hydrocarbon counterparts
The flash vacuum pyrolysis (FVP) of 2-[superscript]2H-dimethyl-silylacetylene afforded ([superscript]2H-dimethylsilyl)acetylene. FVP of dimethylsilylphenylacetylene yielded mainly phenylacetylene. These results are consistent with the formation of silacyclopropene intermediates;The FVP of 1-phenylpropyne yielded phenylallene, indene, and phenylacetylene. 3-[superscript]13C-1-Phenylpropyne yielded indene which contained the [superscript]13C label at every position. The FVP 3-[superscript]13C-indene showed that the carbon label was not appreciably scrambled at carbons other than the 1 and 3 positions;1-[superscript]2H-Indene produces mainly 2-[superscript]2H- and 3-[superscript]2H-indene upon pyrolysis at low temperatures. At higher temperatures, 4-[superscript]2H, 5-[superscript]2H, 6-[superscript]2H-, and 7-[superscript]2H-indene are also formed by intramolecular rearrangements. The FVPs of [alpha],[beta],[beta]-trideuterostyrene, [alpha]-[superscript]2H-toluene, and 4-[superscript]2H-toluene show them to be thermally stable towards intramolecular rearrangements at both low and high temperatures. These results suggest that 1-[superscript]2H-indene undergoes the first reported thermally allowed 1,9-sigmatropic migration;Addition of thermally generated dimethylsilylene to 1,2-butadiene and 3-methyl-1,2-butadiene did not yield silacyclobutene but instead to 2-dimethylsilyl-1,3-butadiene and 2-dimethylsilyl-3-methyl-1,3-butadiene, respectively. However, the pyrolysis of thermal dimethylsilylene generator 1-methoxy-1,1,2,2,2-pentamethyldisilane in the presence of 1,2-propadiene did not yield any silicon containing adducts;The flash vacuum pyrolysis of 1-[superscript]2H-1-trimethylsilylcyclopropane resulted in the formation of 95% 2-[superscript]2H-3-trimethylsilylpropene and 5% 3-[superscript]2H-3-trimethylsilylpropene. This result is consistent with cleavage of the shorter C2-C3 cyclopropane bond being the major isomerization pathway
A review of knowledge of the potential impacts of GMOs on organic agriculture
The organic movement believes that organic agriculture, by its nature, cannot involve the use of genetically modified organisms (GMOs). This has been incorporated into EU regulations which state that there is no place in organic agriculture for GMOs. The aim in this review is to consider the ways in which the use of GMOs in agriculture in the UK and internationally might impact on organic farming. It does not address the controversy about the rights or wrongs of GMOâs per se. The subjects covered are based on a set of questions raised at the beginning of the study. The review is based primarily on evidence from peer-reviewed literature.
The report is based on a number of themes, as follows:
⢠Fate of DNA in soil
⢠Fate of DNA in livestock feed and possible impact of GM feed
⢠Fate of DNA in slurry, manure, compost and mulch
⢠Impact of herbicide tolerant crops
⢠Impact of pest and disease resistant crops
⢠Safety of promoters
⢠DNA transfer in pollen and seeds
⢠Horizontal gene transfer
⢠Impact of scale
The reportâs Executive Summary includes summaries of the findings on each of these themes
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