Adult Female Spruce Bedworm, \u3ci\u3eChoristoneura Fumiferana\u3c/i\u3e (Lepidoptera: Tortricidae), Dry Weight in Relationship to Pupal Fresh Weight and Case Diameter

(excerpt) The weights of adult insects are often measured in production and population studies in order to estimate such variables as growth rates, food conversion efficiencies, fecundity, and others. For the eastern spruce budworm, Choristoneura fumiferana (Clemens), both pupal fresh weights and pupal case diameters have been measured as indicators of adult fecundity and adult dry weights (Miller 1957). However, there are no reports explicitly showing the relationship between these metric pupal variables and adult dry weights. This is the goal of this note

Conductivity Measurements of a Thermoelectric Nanomaterial through THz Spectroscopy

In today’s society there is a great demand on energy output—in the United States alone we rely heavily on non-renewable energy sources. Thermoelectric materials may be able to be used to create more efficient energy systems or recover wasted heat from inefficient technologies. This paper focuses on the conductivity of a new thermoelectric material that incorporates copper into a tellurium nanowire PEDOT:PSS material. The addition of copper seems to increase the conductivity of the material, although the exact relationship between the percentage of copper to tellurium and its affect on the conductivity is uncertain from the results

Transient Photoconductivity of a Thermoelectric Nanomaterial PEDOT:PSS with TeCu nanowires

Thermoelectric materials are able to transfer heat energy into electrical energy. They have many important applications, and an increased understanding of them would allow the scientific community to develop more efficient thermoelectrics. We provide here transient photoconductivity measurements of a thermoelectric nanomaterial - PEDOT:PSS with TeCu nanowires on quartz substrate. Increased copper concentration in nanowires decreases photoconductivity in both transmission and reflectance measurements. Fermi blocking provides a reasonable explanation for this decrease in photoconductivity, which occurs when total nanowire mass approaches ~15% copper concentration

Growing Graphs with Hyperedge Replacement Graph Grammars

Discovering the underlying structures present in large real world graphs is a fundamental scientific problem. In this paper we show that a graph's clique tree can be used to extract a hyperedge replacement grammar. If we store an ordering from the extraction process, the extracted graph grammar is guaranteed to generate an isomorphic copy of the original graph. Or, a stochastic application of the graph grammar rules can be used to quickly create random graphs. In experiments on large real world networks, we show that random graphs, generated from extracted graph grammars, exhibit a wide range of properties that are very similar to the original graphs. In addition to graph properties like degree or eigenvector centrality, what a graph "looks like" ultimately depends on small details in local graph substructures that are difficult to define at a global level. We show that our generative graph model is able to preserve these local substructures when generating new graphs and performs well on new and difficult tests of model robustness.Comment: 18 pages, 19 figures, accepted to CIKM 2016 in Indianapolis, I

Portrayal of agriculture in children\u27s literature: Contemporary stories in picture books, traditional tales, and nonfiction

The purpose of this research was to analyze the representations of modern American farming in traditional tales in picture book format, storybooks with contemporary settings, and non-fiction literature to assess how accurately agriculture information is provided to children. This project will contribute to the knowledge base about how well children’s books are compensating for the lack of first-hand experience. The four hypothesizes studied were: 1. Ninety percent of storybooks with contemporary settings will depict a male in the role of farmer. 2. One hundred percent of traditional literature in picture book format will depict a farmer wearing bib overalls, straw hat or present other outdated and/or stereotyped portrayal of farmers. 3. Ninety percent of the storybooks with contemporary settings will have current farm machinery. 4. Eighty percent of the non-fiction text will provide modern agriculture information. Thematic tables were created for each genre based on machinery, buildings, farming methods, gender and attire of farmers, and livestock. Literature was chosen by using Children’s Core database, and then collected using interlibrary loan. Ten to fifteen titles were chosen for evaluation. The researcher examined the pictures in the three genres, and determined if they were stereotyped or accurate based on the themes. The study found that picture books with a contemporary setting and traditional literature in picture book format had the most stereotypical images. Nonfiction had the most accurate images