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Modifications And Additions To Ant Colony Optimisation To Solve The Set Partitioning Problem, Marcus Randall, Andrew Lewis 2010 Bond University

Modifications And Additions To Ant Colony Optimisation To Solve The Set Partitioning Problem, Marcus Randall, Andrew Lewis

Information Technology papers

Ant colony optimisation has traditionally been used to solve problems that have few/light constraints or no constraints at all. Algorithms to maintain and restore feasibility have been successfully applied to such problems. Set partitioning is a very constrained combinatorial optimisation problem, for which even feasible solutions are difficult to construct. In this paper a binary ant colony optimisation framework is applied to this problem. To increase its effectiveness, feasibility restoration, solution improvement algorithms and candidate set strategies are added. These algorithms can be applied to complete solution vectors and as such can be used by any solver. Moreover, the ...


Pheromone Pre-Seeding For The Construction Of Rfid Antenna Structures Using Aco, Gerhard Weis, Andrew Lewis, Marcus Randall, David Thiel 2010 Griffith University

Pheromone Pre-Seeding For The Construction Of Rfid Antenna Structures Using Aco, Gerhard Weis, Andrew Lewis, Marcus Randall, David Thiel

Information Technology papers

Ant colony optimisation is often used to construct solutions to problems for which it has no a-priori knowledge. However, decision makers and designers often have insight and practical experience concerning what constitutes good and
acceptable solutions. In this paper we exploit this knowledge by applying a pre-seeding procedure to the initial pheromone structure. Using the real-world RFID antenna design problem, we show that very good solutions can be produced. Moreover, this technique allows fine tuning of the search procedure.


Is Leed A True Leader? Studying The Effectiveness Of Leed Certification In Encouraging Green Building, Megan M. Turner 2010 Pomona College

Is Leed A True Leader? Studying The Effectiveness Of Leed Certification In Encouraging Green Building, Megan M. Turner

Pomona Senior Theses

Leadership in Energy and Environmental Design (or LEED) is the most commonly used green building rating system in the United States, bestowing upon LEED certified buildings the prestige of being considered more sustainable than their non-certified neighbors. The public often assumes that LEED certified buildings are completely sustainable or even net-zero with regards to greenhouse gas emissions, but in actuality buildings certified under the most popular version of LEED are only required to be 15% more energy efficient than required by most state building codes – a far cry from the energy usage cuts needed to stave off global warming. By ...


Mind Mapping As An Interactive Tool For Engaging Complex Geographical Issues, David Lloyd, William Boyd, Kristin den Exter 2010 Southern Cross University

Mind Mapping As An Interactive Tool For Engaging Complex Geographical Issues, David Lloyd, William Boyd, Kristin Den Exter

Dr Kristin den Exter

Students and communities engaging with complex geographical issues require tools to assist them structure and contextualise data. This paper examines the use of mind mapping as a tool in geographical education. Case studies are presented from a sample of undergraduate and cross-cultural educational settings demonstrating the use of mind mapping in communication, analysis and problem solving. In critiquing this educational tool, we conclude that mind mapping is particularly effective with communities whose cultures are strong on visual communication but weaker on written communication and in cross-cultural situations where use of written English would disadvantage learners.


Discovering Issue-Based Voting Groups Within The Us Senate, Hanna Wallach 2010 University of Massachusetts - Amherst

Discovering Issue-Based Voting Groups Within The Us Senate, Hanna Wallach

Hanna M. Wallach

Members of the US Senate cast votes on a wide array of issues. Understanding a senator's position on an issue is important to constituents, sources of campaign funding, and groups seeking to persuade senators or build consensus. Classifying senators' positions often falls into the hands of interest groups. Many lobbyists and issue-based organizations give senators scores based on the number of times senators vote in accordance with the organization's ideals. Organization staff must choose which bills to consider and then investigate their content manually. To produce more objective and replicable rankings, political scientists have developed statistical models to ...


Discovering Issue-Based Voting Groups Within The Us Senate, Rachel Shorey, Andrew McCallum, Hanna Wallach 2010 University of Massachusetts - Amherst

Discovering Issue-Based Voting Groups Within The Us Senate, Rachel Shorey, Andrew Mccallum, Hanna Wallach

Andrew McCallum

Members of the US Senate cast votes on a wide array of issues. Understanding a senator's position on an issue is important to constituents, sources of campaign funding, and groups seeking to persuade senators or build consensus. Classifying senators' positions often falls into the hands of interest groups. Many lobbyists and issue-based organizations give senators scores based on the number of times senators vote in accordance with the organization's ideals. Organization staff must choose which bills to consider and then investigate their content manually. To produce more objective and replicable rankings, political scientists have developed statistical models to ...


Dual Inhibition Of Sodium-Mediated Proton And Calcium Efflux Triggers Non-Apoptotic Cell Death In Malignant Gliomas, William Harley, Candace Floyd, Tamara Dunn, Xiao-Dong Zhang, Tsung-Yu Chen, Manu Hegde, Hasan Palandoken, Michael H. Nantz, Leonardo Leon, K.L. Carraway III, Bruce Lyeth, Fredric A. Gorin 2010 University of California - Davis

Dual Inhibition Of Sodium-Mediated Proton And Calcium Efflux Triggers Non-Apoptotic Cell Death In Malignant Gliomas, William Harley, Candace Floyd, Tamara Dunn, Xiao-Dong Zhang, Tsung-Yu Chen, Manu Hegde, Hasan Palandoken, Michael H. Nantz, Leonardo Leon, K.L. Carraway Iii, Bruce Lyeth, Fredric A. Gorin

Chemistry and Biochemistry

Malignant glioma cells maintain an elevated intracellular pH (pHi) within hypoxic–ischemic tumormicroenvironments through persistent activation of sodium–proton transport (McLean et al., 2000). Amiloride has been reported to selectively kill human malignant glioma cell lines but not primary astrocytes (Hegde et al., 2004). While amiloride reduces pHi of malignant gliomas by inhibiting isoform 1 of sodium–proton exchange (NHE1), direct acidification was shown to be cytostatic rather than cytotoxic. At cytotoxic concentrations, amiloride has multiple drug targets including inhibition of NHE1 and sodium–calciumexchange. Amiloride's glioma cytotoxicity can be explained, at least in part, by dual ...


Reconstructability Analysis Of Epistasis, Martin Zwick 2010 Portland State University

Reconstructability Analysis Of Epistasis, Martin Zwick

Systems Science Faculty Publications and Presentations

The literature on epistasis describes various methods to detect epistatic interactions and to classify different types of epistasis. Reconstructability analysis (RA) has recently been used to detect epistasis in genomic data. This paper shows that RA offers a classification of types of epistasis at three levels of resolution (variable-based models without loops, variable-based models with loops, state-based models). These types can be defined by the simplest RA structures that model the data without information loss; a more detailed classification can be defined by the information content of multiple candidate structures. The RA classification can be augmented with structures from related ...


African Water: An Experience With Project Management In Bulima, Tanzania, Robert Sharp 2010 Western Michigan University

African Water: An Experience With Project Management In Bulima, Tanzania, Robert Sharp

Honors Theses

Details the author's experiences researching, designing, and implementing a water system for a boarding school in Africa.


Identifying Landscape Quality Objectives For Gozo, Stephanie Farrugia 2010 James Madison University

Identifying Landscape Quality Objectives For Gozo, Stephanie Farrugia

Masters Theses

The study of landscape quality has not been researched to a significant degree in Malta to date. This qualitative study explores different viewpoints in relation to perceptions of landscape quality, at present and in the future, on the island of Gozo, based on provisions of the European Landscape Convention. The latter, to which Malta is a signatory state, calls for the identification of landscape quality objectives, which should reflect public aspirations. Primary data collection methods, comprising community focus groups and key informant semi-structured interviews were used, together with an extensive document analysis, to understand a range of perceptions of present ...


When Curiosity Kills More Than The Cat: The Perils Of Unchecked Scientific Inquiry, Jamie Shannon 2010 Pomona College

When Curiosity Kills More Than The Cat: The Perils Of Unchecked Scientific Inquiry, Jamie Shannon

Pomona Senior Theses

This work analyzes the ecological, physical, emotional and health impacts of the US nuclear testing done in the Marshall Islands in the mid-20th century.


Watershed Survey And Pilot Lcc Project, Norman Turgeon, Three Ponds Protective Association 2010 Three Ponds Protective Association

Watershed Survey And Pilot Lcc Project, Norman Turgeon, Three Ponds Protective Association

PREP Publications

This describes two projects accomplished in 2010 by the Three Ponds Protective Association (TPPA) and several partners to identify and reduce soil erosion due to storm water runoff into the Milton Three Ponds


Nutrient-Based Fertiliser Subsidy: Will Farmers Adopt Agricultural Best Management Practices?, Sacchidananda Mukherjee 2010 National Institute of Public Finance and Policy (NIPFP), New Delhi

Nutrient-Based Fertiliser Subsidy: Will Farmers Adopt Agricultural Best Management Practices?, Sacchidananda Mukherjee

Sacchidananda Mukherjee

The new nutrient-based fertiliser subsidy policy provides implicit incentives to farmers to test soil samples regularly and get crop-wise recommended doses of nutrients, and offers prospective benefits from the agro-environmental management point of view. A study of six villages in the lower Bhavani Basin in Tamil Nadu reveals that despite a strong willingness on the part of farmers to adopt agricultural best management practices, inadequate infrastructure and the high transaction costs involved in accessing such services make them reluctant to test soil samples regularly. This paper looks at the institutional, infrastructural and agronomic factors influencing farmers’ willingness, and concludes that ...


Proyecto De Investigación: La Primera Agencia Espacial Mexicana: La Comisión Nacional Del Espacio Exterior (1962-1977), J. R. Joel Flores-Mariscal 2010 National Autonomous University of México

Proyecto De Investigación: La Primera Agencia Espacial Mexicana: La Comisión Nacional Del Espacio Exterior (1962-1977), J. R. Joel Flores-Mariscal

J. R. Joel Flores-Mariscal

No abstract provided.


Proyecto De Investigación: Los Mexicanos En Las Operaciones De La Segunda Guerra Mundial, J. R. Joel Flores-Mariscal 2010 National Autonomous University of México

Proyecto De Investigación: Los Mexicanos En Las Operaciones De La Segunda Guerra Mundial, J. R. Joel Flores-Mariscal

J. R. Joel Flores-Mariscal

No abstract provided.


Nicholas Reactions In The Construction Of Cyclohepta[De]Naphthalenes And Cyclohepta[De]Naphthalenones. The Total Synthesis Of Microstegiol, RAFIQ TAJ, James R. Green 2010 University of Windsor

Nicholas Reactions In The Construction Of Cyclohepta[De]Naphthalenes And Cyclohepta[De]Naphthalenones. The Total Synthesis Of Microstegiol, Rafiq Taj, James R. Green

Chemistry and Biochemistry Publications

The application of the Nicholas reaction chemistry of 2,7-dioxygenated naphthalenes in the synthesis of cyclohepta[de]napthalenes and in the synthesis of (±)-microstegiol (1) is presented. The substitution profile of Nicholas monosubstitution (predominantly C-1) and disubstitution reactions (predominantly 1,6-) on 2,7-dioxygenated napthalenes is reported. Application of a 1,8-dicondensation product and selected C-1 monocondensation products to the construction of cyclohepta[de]naphthalenes by way of ring closing metathesis and intramolecular Friedel−Crafts reactions, respectively, is described. Deprotection of the C-7 oxygen function to the corresponding naphthol allows tautomerization to cyclohepta[de]naphthalene-1-ones upon seven-membered-ring closure in most ...


Ecological Impacts Of Stream Bank Stabilization In A Great Plains River, Christopher M. Pracheil 2010 University of Nebraska - School of Natural Resources

Ecological Impacts Of Stream Bank Stabilization In A Great Plains River, Christopher M. Pracheil

Dissertations & Theses in Natural Resources

Reduced ecological complexity, decreased water quality, and accelerated stream bank erosion are common disturbances in rivers with agriculturally dominated watersheds. Massive bank failures, increased sediment loads, and decreased riverine habitat are current problems in the agriculturally dominated Cedar River of central Nebraska. In an effort to slow erosion and prevent further ecological degradation, 20 reach scale stream bank stabilization projects were installed on the Cedar River from 2001 to 2004. The objective of this study was to determine the impact of the Cedar River stream bank stabilization projects on the ecological conditions within the Cedar River. Stream bank erosion, suspended ...


Observation Of The Presuperfluid Regime In A Two-Dimensional Bose Gas, S. Tung, G. Lamporesi, D. Lobser, L. Xia, Eric A. Cornell 2010 University of Colorado Boulder

Observation Of The Presuperfluid Regime In A Two-Dimensional Bose Gas, S. Tung, G. Lamporesi, D. Lobser, L. Xia, Eric A. Cornell

Physics Faculty Contributions

In complementary images of coordinate-space and momentum-space density in a trapped 2D Bose gas, we observe the emergence of presuperfluid behavior. As phase-space density ρ increases toward degenerate values, we observe a gradual divergence of the compressibility κ from the value predicted by a bare-atom model, κba. κ/κba grows to 1.7 before ρ reaches the value for which we observe the sudden emergence of a spike at p=0 in momentum space. Momentum-space images are acquired by means of a 2D focusing technique. Our data represent the first observation of non-mean-field physics in the presuperfluid but degenerate 2D ...


Network Science: Using Information Technology To Enable Collaboration, Arden L. Bement Jr. 2010 Purdue University

Network Science: Using Information Technology To Enable Collaboration, Arden L. Bement Jr.

PPRI Digital Library

No abstract provided.


Intramolecular Nicholas Reactions In The Synthesis Of Dibenzocycloheptanes. Synthesis Of Allocolchicine Nsc 51046 And Analogues And The Formal Synthesis Of (−)-Allocolchicine, Sinisa Djurdjevic, Fei Yang, James R. Green 2010 University of Windsor

Intramolecular Nicholas Reactions In The Synthesis Of Dibenzocycloheptanes. Synthesis Of Allocolchicine Nsc 51046 And Analogues And The Formal Synthesis Of (−)-Allocolchicine, Sinisa Djurdjevic, Fei Yang, James R. Green

Chemistry and Biochemistry Publications

The preparation of dibenzocycloheptyne-Co2(CO)6 complexes by intramolecular Nicholas reactions of biaryl-2-propargyl alcohol-Co2(CO)6 derivatives is described. Reductive decomplexation of the dibenzocycloheptyne-Co2(CO)6 complexes affords the corresponding dibenzocycloheptenes, individual members of which have been employed in a formal total synthesis of (−)-allocolchicine, the preparation of 6,7-dihydro-3,4,9,10,11-pentamethoxy-5H-dibenzo[a,c]cyclohepten-5-one, and the enantioselective total syntheses of NSC 51046 and its 3,8,9,10-tetramethoxy regioisomer.


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