748 research outputs found

    A Directory of Policies on Arthropod Collecting on Public Lands

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    There are many local, state, and federal agencies with responsibilities for managing public lands. The availability of these lands for entomological research and collecting is determined in great part by the specific governmental charges for the management and use of the area; for example: preservation, recreation, or multiple-use resource management

    Ground Beetles (Coleoptera: Carabidae) Collected by Pitfall Trapping in Michigan Small-Grain Fields

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    (excerpt) During the 1980 growing season a series of standard, single-cup pitfall traps were maintained in wheat, oat, barley, and rye fields in Michigan. The traps were maintained by Pest Management Field Assistants (PMFAs) and entomology students from Michigan State University. The traps were primarily used to monitor insect pest activity as part of pest management scouting

    New Records of \u3ci\u3ePasimachus Elongatus\u3c/i\u3e in Michigan (Coleoptera: Carabidae: Scaritini)

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    (excerpt) Pasimachus elongatus LeConte is a large (21-28 mm), flightless ground beetle which occurs from Michigan westward to Montana and south to Louisiana and Arizona. A search of major entomological collections and the literature revealed that only a few specimens have actually been collected in Michigan

    Collections of Hibernating Ground Beetles (Coleoptera: Carabidae)

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    (excerpt) The mild, snowless winter weather of late December 1982 and early January 1983 made it easy to obtain litter and soil samples for extraction of overwintering ground beetles. Collections of this nature are desirable in order to positively confirm the hibernating status of Michigan carabid beetles. As an added benefit, the collections also produced several specimens of rare species which had not been previously collected by other methods (blacklighting and hand collecting) in the same areas during the spring and summer of 1982

    The Feasibility of a Sun-Cured Alfalfa Hay Pelleting Plant in Southeast Central North Dakota

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    This report is one of a series being conducted under a special Research and Extension Rural Development Project at North Dakota State University as authorized by Title V of the Rural Development Act of 1972. The study was initiated and partial funding was provided through an Economic Development Administration Grant (Grant Project Number 05-6-01402).Agribusiness,

    A Directory of Policies on Arthropod Collecting on Public Lands

    Get PDF
    There are many local, state, and federal agencies with responsibilities for managing public lands. The availability of these lands for entomological research and collecting is determined in great part by the specific governmental charges for the management and use of the area; for example: preservation, recreation, or multiple-use resource management

    The Feasibility of a Cooperatively Owned Large-Scale Hog Farrowing System in North Dakota

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    Interest in the feasibility of a cooperatively owned large-scale hog farrowing system has been shown by hog producers in North Dakota. The producers realize the problems in securing a continuous supply of disease free feeder pigs of uniform quality during fluctuating price periods. Lack of published data concerning large-scale farrowing systems makes decisions regarding the feasibility and negotiation with lending institutions difficult. The research for this report was conducted under North Dakota Agricultural Experiment Station Projects 1350 and 3337. The research was supported in part by grants from the Business and Industrial Development Department and the Economic Development Administration (Grant Project Number 05-6-01402). Special assistance in conducting the study and preparing the report was provided through the Research and Extension Rural Development Project at North Dakota State University.Agribusiness, Production Economics,

    Development of an integrated BEM approach for hot fluid structure interaction

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    Significant progress was made toward the goal of developing a general purpose boundary element method for hot fluid-structure interaction. For the solid phase, a boundary-only formulation was developed and implemented for uncoupled transient thermoelasticity in two dimensions. The elimination of volume discretization not only drastically reduces required modeling effort, but also permits unconstrained variation of the through-the-thickness temperature distribution. Meanwhile, for the fluids, fundamental solutions were derived for transient incompressible and compressible flow in the absence of the convective terms. Boundary element formulations were developed and described. For the incompressible case, the necessary kernal functions, under transient and steady-state conditions, were derived and fully implemented into a general purpose, multi-region boundary element code. Several examples were examined to study the suitability and convergence characteristics of the various algorithms

    36 degree step size of proton-driven c-ring rotation in FoF1-ATP synthase

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    Synthesis of the biological "energy currency molecule" adenosine triphosphate ATP is accomplished by FoF1-ATP synthase. In the plasma membrane of Escherichia coli, proton-driven rotation of a ring of 10 c subunits in the Fo motor powers catalysis in the F1 motor. While F1 uses 120 degree stepping, Fo models predict a step-by-step rotation of c subunits 36 degree at a time, which is here demonstrated by single-molecule fluorescence resonance energy transfer.Comment: 8 pages, 1 figur

    Determining the Temporal and Spatial Variability of Biomass Productivity in a Pilot-scale Algal Resource Recovery Unit Treating Agricultural Wastewater

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    Idaho dairy cows produce an estimated 3 million tons of dry manure annually; each ton contains 4.5 kg of nitrogen (N) and 0.82 kg of phosphorous (P). Excess application of manure as crop fertilizer can contaminate aquifers and surface water due to leeching of N and P. We constructed three replicate Algal Resource Recovery Units (ARRU) at the University of Idaho dairy facility in Moscow, ID to test their utility to manage nutrients and produce algal biomass as a secondary commodity. Each ARRU was inoculated with a mixture of algal cultures consisting of Chlorella vulgaris, Scenedesmus obliquus, and Synechococcus leopoliensis, as well as a consortium of algae species obtained from the Boise River and received one of 3 treatments A) lagoon waste water; B) 100% effluent from a polyhydroxyalkanoate reactor effluent (PHAE); or C) a mixture of 90% PHAE and 10% anaerobic digester effluent (ADE). Daily Nitrogen and Phosphorus removal were 83.6%, 82%, and 83.7% N removal and 96.6%, 86%, and 95.8% P removal for treatments A, B, and C, respectively. Biomass productivity was 10.37, 19.13, and 18.9 g/m2/day for each treatment. Algal growth and nutrient removal rates are being evaluated for nutrient management and as secondary commodities
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