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Book Review: Stars Above, Earth Below: A Guide To Astronomy In The National Parks, T. D. Oswalt 2010 Florida Institute of Technology

Book Review: Stars Above, Earth Below: A Guide To Astronomy In The National Parks, T. D. Oswalt

Publications

This document is Dr. Oswalt’s review of Stars Above, Earth Below : a Guide to Astronomy in the National Parks by Tyler Nordgren. Springer/Praxis, 2010 444p, 9781441916488 $29.95.


Note On Gradient Estimates Of Heat Kernel For Schrödinger Operators, Shijun Zheng 2010 Georgia Southern University

Note On Gradient Estimates Of Heat Kernel For Schrödinger Operators, Shijun Zheng

Mathematical Sciences Faculty Publications

Let H = -Δ+V be a Schrödinger operator on Rn. We show that gradient estimates for the heat kernel of H with upper Gaussian bounds imply polynomial decay for the kernels of certain smooth dyadic spectral operators. The latter decay property has been known to play an important role in the Littlewood-Paley theory for Lp and Sobolev spaces. We are able to establish the result by modifying Hebisch and the author’s recent proofs. We give a counterexample in one dimension to show that there exists V in the Schwartz class such that the long time gradient heat ...


Fluoride-Promoted Ligand Exchange In Diaryliodonium Salts, Bijia Wang, Ronald Cerny, ShriHarsha Uppaluri, Jayson J. Kempinger, Stephen G. DiMagno 2010 University of Nebraska-Lincoln

Fluoride-Promoted Ligand Exchange In Diaryliodonium Salts, Bijia Wang, Ronald Cerny, Shriharsha Uppaluri, Jayson J. Kempinger, Stephen G. Dimagno

Stephen DiMagno Papers

Diaryliodonium salts are shown to undergo rapid, fluoride-promoted aryl exchange reactions at room temperature in acetonitrile. Aryl exchange is shown to be exquisitely sensitive to the concentration of fluoride ion in solution; fast exchange is observed as the fluoride concentration approaches a stoichiometric amount at 50 mM substrate concentration. The reaction is slowed, but not halted if benzene is the solvent, indicating that free fluoride ion or a four-coordinate anionic I(III) species may be responsible for the exchange. The fluoride-promoted aryl exchange reaction is general and allows direct measurement of the relative stabilities of diaryliodonium salts featuring different aryl ...


Evolution Of A Bluetooth Test Application Product Line: A Case Study, Narayanasamy RAMASUBBU, Rajesh Krishna BALAN 2010 Singapore Management University

Evolution Of A Bluetooth Test Application Product Line: A Case Study, Narayanasamy Ramasubbu, Rajesh Krishna Balan

Research Collection School Of Information Systems

In this paper, we study the decision making process involved in the five year lifecycle of a Bluetooth software product produced by a large, multi-national test and measurement firm. In this environment, customer change requests either have to be added as a standard feature in the product, or developed as a special customized version of the product. We first discuss the influential factors, such as evolving standards, market share, installed-base, and complexity, which collectively determined how the firm responded to product change requests. We then develop a predictive decision model to test the collective impact of these factors on determining ...


Arivu: Power-Aware Middleware For Multiplayer Mobile Games, Bhojan ANAND, Karthik THIRUGNANAM, Thanh Long LE, Duc-Dung PHAM, Akhihebbal L. ANANDA, Rajesh Krishna BALAN, Mun Choon CHAN 2010 National University of Singapore

Arivu: Power-Aware Middleware For Multiplayer Mobile Games, Bhojan Anand, Karthik Thirugnanam, Thanh Long Le, Duc-Dung Pham, Akhihebbal L. Ananda, Rajesh Krishna Balan, Mun Choon Chan

Research Collection School Of Information Systems

With the improved processing power, graphic quality and high-speed wireless connection in recent generations of mobile phone, it looks more attractive than ever to introduce networked games on these devices. While device features and application resource requirements are rapidly growing, the battery technologies are not growing at the same pace. Networked Mobile games are a class of application, which consume higher levels of energy, as they are naturally more computationally intensive and use hardware components including audio, display and network to their fullest capacities. Therefore, the main concern is the limitation of the battery power of such portable devices to ...


An Analytic Characterization Of Model Minimization In Factored Markov Decision Processes, Guo W., Tze-Yun LEONG 2010 Singapore Management University

An Analytic Characterization Of Model Minimization In Factored Markov Decision Processes, Guo W., Tze-Yun Leong

Research Collection School Of Information Systems

Model minimization in Factored Markov Decision Processes (FMDPs) is concerned with finding the most compact partition of the state space such that all states in the same block are action-equivalent. This is an important problem because it can potentially transform a large FMDP into an equivalent but much smaller one, whose solution can be readily used to solve the original model. Previous model minimization algorithms are iterative in nature, making opaque the relationship between the input model and the output partition. We demonstrate that given a set of well-defined concepts and operations on partitions, we can express the model minimization ...


Effect Of Corn Or Soybean Row Position On Soil Water, Sally D. Logsdon, Thomas J. Sauer, Guillermo Hernandez-Ramirez, Jerry L. Hatfield, Amy L. Kaleita-Forbes, John H. Prueger 2010 United States Department of Agriculture

Effect Of Corn Or Soybean Row Position On Soil Water, Sally D. Logsdon, Thomas J. Sauer, Guillermo Hernandez-Ramirez, Jerry L. Hatfield, Amy L. Kaleita-Forbes, John H. Prueger

Agricultural and Biosystems Engineering Publications

Crop plants can funnel water to the soil and increase water content more in the row relative to the interrow. Because the row intercepts more soil water after rains and higher root density, the soil may also dry out more between rains than does soil in the interrow. The objectives of this study were to determine if there is a row position difference in soil wetting after rain and drying between rains, and to determine the seasonal nature of these differences. The first experiment examined soil water content 0 to 0.06 m in row, interrow, and quarter corn row ...


Tree-Based Algorithms For Computing K-Combinations And K-Compositions, Shant Karakashian, Berthe Y. Choueiry 2010 University of Nebraska-Lincoln

Tree-Based Algorithms For Computing K-Combinations And K-Compositions, Shant Karakashian, Berthe Y. Choueiry

CSE Technical reports

In this document, we describe two tree-based algorithms for computing all k-combinations and k-compositions of a finite set.

We have developed two algorithms for solving the following combinatorial tasks:

• Given a finite set S and a natural number k, find all subsets of S of size k. In the literature, this problem is called k-subsets and k-combinations.

• Given two natural numbers k, n where k [less than or equal to] n, find all k-compositions of n where a k-composition is an ordered combination of k nonzero natural numbers whose sum is n. Note that in the literature, a k-composition of ...


A Clustering Comparison Measure Using Density Profiles And Its Application To The Discovery Of Alternate Clusterings, Eric Bae, James Bailey, Guozhu Dong 2010 Wright State University - Main Campus

A Clustering Comparison Measure Using Density Profiles And Its Application To The Discovery Of Alternate Clusterings, Eric Bae, James Bailey, Guozhu Dong

Kno.e.sis Publications

Data clustering is a fundamental and very popular method of data analysis. Its subjective nature, however, means that different clustering algorithms or different parameter settings can produce widely varying and sometimes conflicting results. This has led to the use of clustering comparison measures to quantify the degree of similarity between alternative clusterings. Existing measures, though, can be limited in their ability to assess similarity and sometimes generate unintuitive results. They also cannot be applied to compare clusterings which contain different data points, an activity which is important for scenarios such as data stream analysis. In this paper, we introduce a ...


Would Position Limits Have Made Any Difference To The 'Flash Crash' On May 6, 2010, Wing Bernard LEE, Shih-Fen CHENG, Annie KOH 2010 Singapore Management University

Would Position Limits Have Made Any Difference To The 'Flash Crash' On May 6, 2010, Wing Bernard Lee, Shih-Fen Cheng, Annie Koh

Research Collection School Of Information Systems

On May 6, 2010, the US equity markets experienced a brief but highly unusual drop in prices across a number of stocks and indices. The Dow Jones Industrial Average (DJIA) fell by approximately 9% in a matter of minutes, and several stocks were traded down sharply before recovering a short time later. Earlier research by Lee, Cheng and Koh (2010) identified the conditions under which a “flash crash” can be triggered by systematic traders running highly similar trading strategies, especially when they are “crowding out” other liquidity providers in the market. The authors contend that the events of May 6 ...


Smu-Sis At Tac 2010 - Kbp Track Entity Linking, Swapna GOTTIPATI, Jing JIANG 2010 Singapore Management University

Smu-Sis At Tac 2010 - Kbp Track Entity Linking, Swapna Gottipati, Jing Jiang

Research Collection School Of Information Systems

Entity linking task is a process of linking the named entity within the unstructured text to the entity in the Knowledge Base. Entity liking to the relevant knowledge is useful in various information extraction and natural language processing applications that improve the user experiences such as search, summarization and so on. We propose the two way entity linking approach to reformulate query, disambiguate the entity and link to the relevant KB repository. This paper describes the details of our participation in TAC 2010 - Knowledge Base Population track. We provided an innovative approach to disambiguate the entity by query reformulation using ...


Ontology Alignment For Linked Open Data, Prateek Jain, Pascal Hitzler, Amit P. Sheth, Kunal Verma, Peter Z. Yeh 2010 Wright State University - Main Campus

Ontology Alignment For Linked Open Data, Prateek Jain, Pascal Hitzler, Amit P. Sheth, Kunal Verma, Peter Z. Yeh

Kno.e.sis Publications

The Web of Data currently coming into existence through the Linked Open Data (LOD) effort is a major milestone in realizing the Semantic Web vision. However, the development of applications based on LOD faces difficulties due to the fact that the different LOD datasets are rather loosely connected pieces of information. In particular, links between LOD datasets are almost exclusively on the level of instances, and schema-level information is being ignored. In this paper, we therefore present a system for finding schema-level links between LOD datasets in the sense of ontology alignment. Our system, called BLOOMS, is based on the ...


Defects At Oxygen Plasma Cleaned Zno Polar Surfaces, Y. F. Dong, Z-Q. Fang, David C. Look, Daniel R. Doutt, G. Cantwell, J. Zhang, J. J. Song, L. J. Brillson 2010 Wright State University - Main Campus

Defects At Oxygen Plasma Cleaned Zno Polar Surfaces, Y. F. Dong, Z-Q. Fang, David C. Look, Daniel R. Doutt, G. Cantwell, J. Zhang, J. J. Song, L. J. Brillson

Physics Faculty Publications

Depth-resolved cathodoluminescence spectroscopy (DRCLS) reveals the evolution of surface and near surface defects at polar surfaces with remote oxygen plasma (ROP) treatment. Furthermore, this evolution exhibits significant differences that depend on surface polarity. ROP decreased the predominant 2.5 eV defect emission related to oxygen vacancies on the O face, while creating a new 2.1 eV defect emission on the Zn face that increases with ROP time. The surface-located 2.1 eV emission correlates with carrier profiles from capacitance-voltage measurements and a shift of the E3 trap to higher binding energy from deep level transient spectroscopy (DLTS). This result ...


Oh And Oi Airglow Layer Modulation By Ducted Shortperiod Gravity Waves: Effects Of Trapping Altitude, J. B. Snively, V. P. Pasko, Michael J. Taylor 2010 Utah State University

Oh And Oi Airglow Layer Modulation By Ducted Shortperiod Gravity Waves: Effects Of Trapping Altitude, J. B. Snively, V. P. Pasko, Michael J. Taylor

All Physics Faculty Publications

Perturbations to the OH and OI [O(1S) 557.7 nm] airglow layers by ducted gravity waves near the Brunt-Väisälä period are investigated using a 2-D numerical model. Airglow signatures of these waves are strongly determined by perturbations of O, O3, and H, which exhibit peak densities near and above mesopause. Strong periodic vertical wind components of short-period gravity waves induce opposite relative density perturbations above and below the layer density peaks. Airglow signatures for ducted waves depend on the specific vertical shapes and altitudes of the wave packets relative to ambient species density profiles; waves perturbing only ...


Indiana Wildlife Disease News, Vol 5, Issue 3 -- November 2010, Joe N. Caudill, Dean Zimmerman 2010 USDA-APHIS WIldlife Services

Indiana Wildlife Disease News, Vol 5, Issue 3 -- November 2010, Joe N. Caudill, Dean Zimmerman

Indiana Wildlife Disease News

Nasal bots in White-tailed Deer

Recent Changes to the Indiana DNR Division of Fish and Wildlife

Two New Wildlife Health Reporting Tools: 1) The Wildlife Health Event Reporter (WHER) website, created by Researchers in the Nelson Institute for Environmental Studies at the University of Wisconsin-Madison and the U.S. Geological Survey National Wildlife Health Center in Madison, and 2) “Outbreaks Near Me,” created by Children’s Hospital Boston researchers Clark Freifeld and John Brownstein

New Contact at National Wildlife Health Center for Central US States - Dr. LeAnn White

Midwest Wildlife Disease Update:
Two Kentucky Cows Test Positive for TB
Ohio ...


Multi-Scale Perspectives On Paddlefish Populations: Implications For Species Conservation And Management, Brenda M. Pracheil 2010 University of Nebraska-Lincoln

Multi-Scale Perspectives On Paddlefish Populations: Implications For Species Conservation And Management, Brenda M. Pracheil

Dissertations & Theses in Natural Resources

The Order of fishes containing paddlefish and sturgeon has been named the most endangered group of organisms on the planet by the International Union of Conservation of Nature (IUCN). Population trajectories of paddlefish, whose native range is entirely encompassed within the United States of America, are currently unknown, although the IUCN has considered them to have a high extinction risk in the wild. The declaration of the vulnerability of paddlefish to extinction, coupled with the global plight of other sturgeon species create urgency to establish population and species-level population trajectories. Moreover, this declaration creates a great need for swift management ...


Noncovalent Interactions In Extended Systems Described By The Effective Fragment Potential Method: Theory And Application To Nucleobase Oligomers, Debashree Ghosh, Dmytro Kosenkov, Vitalii Vanovschi, Christopher F. Williams, John M. Herbert, Mark S. Gordon, Michael Schmidt, Lyudmila V. Slipchenko, Anna I. Krylov 2010 UniVersity of Southern California

Noncovalent Interactions In Extended Systems Described By The Effective Fragment Potential Method: Theory And Application To Nucleobase Oligomers, Debashree Ghosh, Dmytro Kosenkov, Vitalii Vanovschi, Christopher F. Williams, John M. Herbert, Mark S. Gordon, Michael Schmidt, Lyudmila V. Slipchenko, Anna I. Krylov

Chemistry Publications

The implementation of the effective fragment potential (EFP) method within the Q-CHEM electronic structure package is presented. The EFP method is used to study noncovalent π−π and hydrogen-bonding interactions in DNA strands. Since EFP is a computationally inexpensive alternative to high-level ab initio calculations, it is possible to go beyond the dimers of nucleic acid bases and to investigate the asymptotic behavior of different components of the total interaction energy. The calculations demonstrated that the dispersion energy is a leading component in π-stacked oligomers of all sizes. Exchange-repulsion energy also plays an important role. The contribution of polarization is ...


Surprisingly Rapid Nitrogen Cycling In Tropical Forest Plantations On Volcanically Derived Soils, James W. Raich, Ann E. Russell 2010 Iowa State University

Surprisingly Rapid Nitrogen Cycling In Tropical Forest Plantations On Volcanically Derived Soils, James W. Raich, Ann E. Russell

Natural Resource Ecology and Management Conference Papers, Posters and Presentations

Secondary forests and young forest plantations frequently have high rates of tree growth and NPP – higher even than mature forests in similar situations. The nutrients required to sustain this rapid growth are derived from the soil and by external inputs such as rainfall or, in the case of nitrogen, by biological N fixation. In our study of the effects of tree species within replicated experimental plantations in a moist, lowland tropical environment in Costa Rica, high rates of biomass accumulation and productivity were coupled with high rates of N accumulation and cycling. We applied extensive sampling through time within a ...


Powerpack: Energy Profiling And Analysis Of High-Performance Systems And Applications, Rong Ge, Xizhou Feng, Shuaiwen Song, Hung-Ching Chang, Dong Li, Kirk W. Cameron 2010 Marquette University

Powerpack: Energy Profiling And Analysis Of High-Performance Systems And Applications, Rong Ge, Xizhou Feng, Shuaiwen Song, Hung-Ching Chang, Dong Li, Kirk W. Cameron

Mathematics, Statistics and Computer Science Faculty Research and Publications

Energy efficiency is a major concern in modern high-performance computing system design. In the past few years, there has been mounting evidence that power usage limits system scale and computing density, and thus, ultimately system performance. However, despite the impact of power and energy on the computer systems community, few studies provide insight to where and how power is consumed on high-performance systems and applications. In previous work, we designed a framework called PowerPack that was the first tool to isolate the power consumption of devices including disks, memory, NICs, and processors in a high-performance cluster and correlate these measurements ...


On Semigroups With Lower Semimodular Lattice Of Subsemigroups, Peter R. Jones 2010 Marquette University

On Semigroups With Lower Semimodular Lattice Of Subsemigroups, Peter R. Jones

Mathematics, Statistics and Computer Science Faculty Research and Publications

The question of which semigroups have lower semimodular lattice of subsemigroups has been open since the early 1960s, when the corresponding question was answered for modularity and for upper semimodularity. We provide a characterization of such semigroups in the language of principal factors. Since it is easily seen (and has long been known) that semigroups for which Green's relation J is trivial have this property, a description in such terms is natural. In the case of periodic semigroups—a case that turns out to include all eventually regular semigroups—the characterization becomes quite explicit and yields interesting consequences. In ...


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