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    123813 research outputs found

    Factors Affecting the Control of Corn Rootworms With Soil Insecticides: Insecticide Resistance, Distribution, and Persistence

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    The soil from four fields was evaluated for the persistence of terbufos and carbofuran. For terbufos, there were no significant differences in its persistence in soil from each field and that of its respective border. For carbofuran, no degradation was observed in soil from a field where it had never been used, however, it degraded more rapidly in soil from the three other fields than in soil from their respective borders. Insecticide persistence and the application method were very important factors affecting insecticide efficacy.Made available in DSpace on 2015-09-28T15:10:50Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9812529.pdf: 11910295 bytes, checksum: 06a5b86adfc2278e9ab0c5c7807bc388 (MD5) Previous issue date: 1997Embargo set by: Seth Robbins for item 87755 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only265 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1997

    Subnational Developmentalism: Brazil in Comparative Perspective

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    "In an attempt to understand the process of economic liberalization that has swept the globe over the last two decades, scholars of comparative political economy have focused primarily on national-level politics. However, most studies overlook the fact that decentralization has enabled subnational actors to re-claim national ""state developmentalist"" roles through policy innovations at the state and local levels---giving rise to a new phenomenon I term subnational developmentalism. While situated within a common national context, I demonstrate that subnational actors have responded quite differently to the challenges of the post-statist economy and, in the process, forged divergent institutions for market governance at the subnational level. The main aim of my dissertation, in turn, is to identify the conditions under which subnational actors in the developing world are likely to develop innovative strategies for promoting industrial cooperation and economic transformation. Why, in other words, do ""developmental synergies"" and ""good government"" practices thrive in some regions and not in others? Given important resource constraints and pervasive collective action problems, I argue that such cooperation hinges critically on subnational patterns of electoral and social mobilization, political party development, and the creation of cross-class coalitions. I employ case study analysis and subnational comparative method to evaluate these questions, focusing on contemporary Brazil (1990--present)."Made available in DSpace on 2015-09-25T20:49:18Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3086017.pdf: 8384474 bytes, checksum: 340cf34f6c945a09f0a0b9e5e13ddc01 (MD5) Previous issue date: 2003Embargo set by: Seth Robbins for item 83838 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only158 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003

    {112} Polar Surfaces of Copper(indium,gallium)selenide: Properties and Effects on Crystal Growth

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    Cu(In,Ga)Se2 (GIGS) are promising materials for thin film photovoltaic applications. This work studies the epitaxial growth of CIGS single crystal films on GaAs substrates of various orientations and characterizes the properties of the thin films. A surprising finding is the strong tendency of film surfaces to facet to {112} planes. The work attempted to establish the connections between the film morphology, the surface energies, the surface chemical compositions, and the reconstruction of polar surfaces. Using angle-resolved photoelectron emission spectroscopy, I found that there is a severe Cu depletion at the first 1--2 layer of the free surface of CuInSe2 and the surface is semiconducting. The results strongly support the model of a reconstructed non-stoichiometric polar surface and exclude the previously believed existence of a bulk second phase on the CIS surface. Unique features of the film morphology suggest that the properties and structure of the polar surfaces have great effects on the growth of the crystals, and probably on the incorporation of the large amount of point defects. Measured chemical composition profiles indicate that the Cu depletion observed on free CIGS surface remains at the CIGS/CdS heterojunction interface and Cd is incorporated into the surface of CIGS. It is proposed that this non-stoichiometric composition leads to charge imbalance at the interface and causes the type-inversion of the CIGS surface, which are favorable for the device performance.Made available in DSpace on 2015-09-25T20:52:47Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3101902.pdf: 3334562 bytes, checksum: 39dc1837a3f88445d04950eed7740149 (MD5) Previous issue date: 2003Embargo set by: Seth Robbins for item 84023 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only71 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003

    In Situ Investigation of Titanium Nitride Surface Dynamics: The Role of Surface and Bulk Mass Transport Processes

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    Embargo set by: Seth Robbins for item 84098 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsThe above SiNx-TiN results suggest new design strategies for nanoscale materials in which nanocomposite systems and processing conditions are purposefully selected in order to obtain tissue phases, which exhibit local epitaxy with the encapsulated crystallites. This provides higher interfacial bond strength, which further reduces the probability of grain boundary sliding and thus yields enhanced materials' strength. One can envision a new class of super-to-ultra hard all-crystalline ceramic nanocomposites formed during primary (film deposition) or secondary (age processing) phase transformations in which both the interfacial structure and the overall preferential crystallographic orientation is controlled.Made available in DSpace on 2015-09-25T20:53:09Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3314730.pdf: 2029923 bytes, checksum: b206f2a6771dde873cd216dfe60a7995 (MD5) Previous issue date: 2008Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only111 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008

    Idea Generation in New Product Development: A Cognitive Framework of the Fuzzy Front End

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    The contributions of this research are three-fold. First, we build an integrative theoretical framework examining the antecedents to successful new product idea generation by combining organizational cognition constructs and frameworks. Second, the two guiding conceptual frameworks used to build the integrative theory (market interpretation modes and organizational cognition mechanisms) are empirically tested and result in newly developed and tested measures. And finally, this research results in implications for NPD management, allowing organizations to better manage their new product idea generation processes, by understanding the effects of various market interpretation modes for different strategic objectives in new product development.Made available in DSpace on 2015-09-25T22:21:27Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3086184.pdf: 14900948 bytes, checksum: 1fefb9d8bd81caaa0b93690b2f3f7277 (MD5) Previous issue date: 2003Embargo set by: Seth Robbins for item 85804 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only298 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003

    Association Between SCN Resistance and Yield in Soybean, And, QTL Mapping of Field Resistance to Sclerotinia Sclerotiorum in Soybean

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    Confirmation and refinement of results from both studies will enable soybean breeders to use marker-assisted breeding for the development of SCN resistant cultivars with higher yield potential and the development of soybean cultivars with increased levels of resistance to Sclerotinia stem rot.Made available in DSpace on 2015-09-25T22:33:28Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3160906.pdf: 6081181 bytes, checksum: b60d66b3d7cc88d8148554e733355e77 (MD5) Previous issue date: 2004Embargo set by: Seth Robbins for item 86297 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only72 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004

    Strategies for integrated control of biological agents by small utilities

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    U of I Only Restriction set for Item 117725 on 2021-05-21T15:42:00Z with date 2125-01-01 by [email protected] by Ayla Kenfield ([email protected]) on 2021-05-21T16:04:19Z No. of bitstreams: 1 Page-Thesis-2004.pdf: 14157062 bytes, checksum: b8de53389778b1d97f7bb107a5cb2f11 (MD5)Made available in DSpace on 2021-05-21T16:04:19Z (GMT). No. of bitstreams: 1 Page-Thesis-2004.pdf: 14157062 bytes, checksum: b8de53389778b1d97f7bb107a5cb2f11 (MD5) Previous issue date: 2004-12-08Embargo set by: Ayla Kenfield for item 117725 Lift date: 2125-01-01T06:00:00Z Reason: Item is in copyrightItem is in copyrightU of I Onl

    On a certain penalty method in optimal control and differential games / BEBR No. 74

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    Made available in DSpace on 2011-09-15T14:43:31Z (GMT). No. of bitstreams: 2 oncertainpenalty74ster.pdf: 893103 bytes, checksum: 0fdc35c0312d5f45cc3a9ecf7fac9188 (MD5) license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) Previous issue date

    Evaluation of Digital Alert Systems Associated with Emergency Response Vehicles and Compliance with Move Over Law

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    The presence of stationary emergency vehicles on high-speed roadways poses heightened safety risks, and driver compliance with Move Over laws remains inconsistent nationwide. In recent years, digital alert systems, integrated into widely used navigation applications and in-vehicle platforms, have emerged as a potential countermeasure to improve driver awareness and safety. However, limited research has examined the effectiveness of these systems in real-world environments, particularly when combined with traditional visual emergency warnings. To address this gap, two field experiments were conducted in Illinois under multiple operational scenarios involving emergency vehicles and digital alert technologies. High-resolution helicopter-based aerial videography was used to capture detailed vehicle trajectories, offering a unique opportunity to evaluate driver speed adjustments and lane-changing behavior under varying alert conditions. This study offers an empirical investigation of the impacts of digital alerts on driver behavior and compliance with the Move Over law. The findings of this study support transportation agencies and technology developers in designing integrated warning systems to enhance roadway safety.IDOT-R27-25

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