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Articles 9001 - 9030 of 11462
Full-Text Articles in Physical Sciences and Mathematics
Hydrodynamic Modeling Of Ns-Laser Ablation, David Autrique, Vasilios Alexiades, Harihar Khanal
Hydrodynamic Modeling Of Ns-Laser Ablation, David Autrique, Vasilios Alexiades, Harihar Khanal
Publications
Laser ablation is a versatile and widespread technique, applied in an increasing number of medical, industrial and analytical applications. A hydrodynamic multiphase model describing nanosecond-laser ablation (ns- LA) is outlined. The model accounts for target heating and mass removal mechanisms as well as plume expansion and plasma formation. A copper target is placed in an ambient environment consisting of helium and irradiated by a nanosecond-laser pulse. The effect of variable laser settings on the ablation process is explored in 1-D numerical simulations.
Dependence On Cyberscribes - Issues In E-Security, Thomas R. Mclean, Alexander B. Mclean
Dependence On Cyberscribes - Issues In E-Security, Thomas R. Mclean, Alexander B. Mclean
Journal of Business & Technology Law
No abstract provided.
Logic, Not Evidence, Supports A Change In Expert Testimony Standards: Why Evidentiary Standards Promulgated By The Supreme Court For Scientific Expert Testimony Are Inappropriate And Inefficient When Applied In Patent Infringement Suits, Claire R. Rollor
Journal of Business & Technology Law
No abstract provided.
The Impact Of Local Patent Rules On Rate And Timing Of Case Resolution Relative To Claim Construction: An Empirical Study Of The Past Decade, Pauline M. Pelletier
The Impact Of Local Patent Rules On Rate And Timing Of Case Resolution Relative To Claim Construction: An Empirical Study Of The Past Decade, Pauline M. Pelletier
Journal of Business & Technology Law
No abstract provided.
On Mining Biological Signals Using Correlation Networks, Kathryn Dempsey Cooper, Ishwor Thapa, Claudia Cortes, Zack Eriksen, Dhundy Raj Bastola, Hesham Ali
On Mining Biological Signals Using Correlation Networks, Kathryn Dempsey Cooper, Ishwor Thapa, Claudia Cortes, Zack Eriksen, Dhundy Raj Bastola, Hesham Ali
Interdisciplinary Informatics Faculty Proceedings & Presentations
Correlation networks have been used in biological networks to analyze and model high-throughput biological data, such as gene expression from microarray or RNA-seq assays. Typically in biological network modeling, structures can be mined from these networks that represent biological functions; for example, a cluster of proteins in an interactome can represent a protein complex. In correlation networks built from high-throughput gene expression data, it has often been speculated or even assumed that clusters represent sets of genes that are coregulated. This research aims to validate this concept using network systems biology and data mining by identification of correlation network clusters …
On Identifying And Analyzing Significant Nodes In Protein-Protein Interaction Networks, Rohan Khazanchi, Kathryn Dempsey Cooper, Ishwor Thapa, Hesham Ali
On Identifying And Analyzing Significant Nodes In Protein-Protein Interaction Networks, Rohan Khazanchi, Kathryn Dempsey Cooper, Ishwor Thapa, Hesham Ali
Interdisciplinary Informatics Faculty Proceedings & Presentations
Network theory has been used for modeling biological data as well as social networks, transportation logistics, business transcripts, and many other types of data sets. Identifying important features/parts of these networks for a multitude of applications is becoming increasingly significant as the need for big data analysis techniques grows. When analyzing a network of protein-protein interactions (PPIs), identifying nodes of significant importance can direct the user toward biologically relevant network features. In this work, we propose that a node of structural importance in a network model can correspond to a biologically vital or significant property. This relationship between topological and …
M-Addition, Tim Mesikepp
M-Addition, Tim Mesikepp
WWU Graduate School Collection
This study builds upon the work of Gardner, Hug and Weil [1, Section 6] by further exploring the properties of M-addition. It is shown that several well-known theorems on Minkowski addition have M-addition parallels, including results involving intersections, the valuation property and the convex hull. The last of these enables us to detail su cient conditions for when the M-sum of convex polytopes is a convex polytope. Nested operations of M-addition are also examined and an M-addition generalization of the Shapley-Folkman Lemma and a related bound are offered.
Understanding The Drivers Of Forest, Residential, And Agricultural Land Values In Yamhill County Using Hedonic Models, Emily D. Dietrich
Understanding The Drivers Of Forest, Residential, And Agricultural Land Values In Yamhill County Using Hedonic Models, Emily D. Dietrich
Environmental Science and Management Professional Master's Project Reports
Hedonic modeling is commonly used in land and property value estimations in an attempt to identify the impact that various attributes have on the market value of that property. The purpose of this study is to examine the factors contributing to land value of agricultural, forest, and residential properties in Yamhill County, as part of the Spatial Ecosystem Services Analysis, Modeling, and Evaluation (SESAME, http://www.pdx.edu/ecosystem-services/) project. This paper discusses the process and preliminary results of the development of hedonic models that will be utilized for predicting land value changes under future land conversion scenarios. Applying the models to future scenarios …
Spatial And Temporal Patterns Of Amphibian Chytrid Fungus Batrachochytrium Dendrobatidis Occupancy In Amphibian Habitats, Tara Chestnut
Spatial And Temporal Patterns Of Amphibian Chytrid Fungus Batrachochytrium Dendrobatidis Occupancy In Amphibian Habitats, Tara Chestnut
Environmental Science and Management Professional Master's Project Reports
Chytrid fungi are the most ancestral of the fungi and are global in distribution. There are over 1200 species of Chytridiomycota described from freshwater, marine and terrestrial systems in temperate, tropical and tundra environments. Chytridiales are characterized by a range of morphologies and share the flask- or pot-like shape of the zoosporangia, within which motile zoospores develop. Chytrids function primarily as plant saprobes and parasites, but some also parasitize animals. Chytrids are observed in conjunction with the decline of freshwater and marine algal blooms, they decompose excess pollen, and comprise the fungal flora in gut of herbivores. Some chytrids also …
Limetstone And Dolomite Resources Of Kentucky, Garland R. Dever Jr., Gerald A. Weisenfluh
Limetstone And Dolomite Resources Of Kentucky, Garland R. Dever Jr., Gerald A. Weisenfluh
Map and Chart--KGS
Large quantities of limestone and dolomite suitable for construction, agriculture, and industrial uses are available in Kentucky. Deposits of hard and durable stone are quarried and mined for construction. The stone is crushed to produce aggregate for concrete and asphalt used in the construction of highways, streets, and buildings. Much of the state’s stone being produced for construction also meets the chemical and physical specifications for aglime, which is used to adjust the pH of soils for agricultural crops and pastures. Deposits of chemically pure stone are used for the manufacture of lime and cement, and for industrial applications such …
Oxidative Modification Of Lipoic Acid By Hne In Alzheimer Disease Brain, Sarita S. Hardas, Rukhsana Sultana, Amy M. Clark, Tina L. Beckett, Luke I. Szweda, M. Paul Murphy, D. Allan Butterfield
Oxidative Modification Of Lipoic Acid By Hne In Alzheimer Disease Brain, Sarita S. Hardas, Rukhsana Sultana, Amy M. Clark, Tina L. Beckett, Luke I. Szweda, M. Paul Murphy, D. Allan Butterfield
Chemistry Faculty Publications
Alzheimer disease (AD) is an age-related neurodegenerative disease characterized by the presence of three pathological hallmarks: synapse loss, extracellular senile plaques (SP) and intracellular neurofibrillary tangles (NFTs). The major component of SP is amyloid β-peptide (Aβ), which has been shown to induce oxidative stress. The AD brain shows increased levels of lipid peroxidation products, including 4-hydroxy-2-nonenal (HNE). HNE can react covalently with Cys, His, or Lys residues on proteins, altering structure and function of the latter. In the present study we measured the levels of the HNE-modified lipoic acid in brain of subjects with AD and age-matched controls. Lipoic acid …
Analysis Of Spatial Data, Xiang Zhang
Analysis Of Spatial Data, Xiang Zhang
Theses and Dissertations--Statistics
In many areas of the agriculture, biological, physical and social sciences, spatial lattice data are becoming increasingly common. In addition, a large amount of lattice data shows not only visible spatial pattern but also temporal pattern (see, Zhu et al. 2005). An interesting problem is to develop a model to systematically model the relationship between the response variable and possible explanatory variable, while accounting for space and time effect simultaneously.
Spatial-temporal linear model and the corresponding likelihood-based statistical inference are important tools for the analysis of spatial-temporal lattice data. We propose a general asymptotic framework for spatial-temporal linear models and …
Complex Symplectic Geometry With Applications To Vector Differential Operators, Chuan Fu Yang
Complex Symplectic Geometry With Applications To Vector Differential Operators, Chuan Fu Yang
Turkish Journal of Mathematics
Let l(y) be a formally self-adjoint vector-valued differential expression of order n on an interval (a, \infty)(-\infty \leq a < \infty) with complex matrix-valued function coefficients and finite equal deficiency indices. In this paper, applying complex symplectic algebra, we give a reformulation for self-adjoint domains of the minimal operator associated with l(y) and classify them.
Foliations And A Class Of Metrics On Tangent Bundle, Esmaeil Peyghan, Leila Nourmohammadi Far
Foliations And A Class Of Metrics On Tangent Bundle, Esmaeil Peyghan, Leila Nourmohammadi Far
Turkish Journal of Mathematics
Let M be a smooth manifold with Finsler metric F, and let TM° be the slit tangent bundle of M with a generalized Riemannian metric G, which is induced by F. In this paper, we extract many natural foliations of (TM°,G) and study some of their geometric properties. Next we use this approach to obtain new characterizations of Finsler manifolds with positive constant curvature.
Induced Pluripotent Stem Cells As Tools For Disease Modelling And Drug Discovery In Alzheimer's Disease, Lezanne Ooi, Kuldip Sidhu, Anne Poljak, Greg Sutherland, Michael D. O'Connor, Perminder Sachdev, Gerald Munch
Induced Pluripotent Stem Cells As Tools For Disease Modelling And Drug Discovery In Alzheimer's Disease, Lezanne Ooi, Kuldip Sidhu, Anne Poljak, Greg Sutherland, Michael D. O'Connor, Perminder Sachdev, Gerald Munch
Faculty of Science - Papers (Archive)
Alzheimer’s disease (AD) is a progressive neurodegenerative brain disorder that leads to a progressive decline in a person’s memory and ability to communicate and carry out daily activities. The brain pathology in AD is characterized by extensive neuronal loss, particularly of cholinergic neurons, intracellular neurofibrillary tangles composed of the tau protein (NFTs) and extracellular deposition of plaques composed of β-amyloid (Aβ), a cleavage product of the amyloid precursor protein (APP). These two insoluble protein aggregates are accompanied by a chronic inflammatory response and extensive oxidative damage. Whereas dys-regulation of APP expression or processing appears to be important for the familial, …
A Reagentless Thermal Post-Synthetic Rearrangement Of An Allyloxy-Tagged Metal-Organic Framework, Andrew D. Burrows, Sally O. Hunter, Mary F. Mahon, Christopher Richardson
A Reagentless Thermal Post-Synthetic Rearrangement Of An Allyloxy-Tagged Metal-Organic Framework, Andrew D. Burrows, Sally O. Hunter, Mary F. Mahon, Christopher Richardson
Faculty of Science - Papers (Archive)
Direct heating of a metal-organic framework provides a simple, controllable way of effecting a covalent post-synthetic modification. Herein we report that an allyloxy-tagged zinc metal-organic framework undergoes a thermally-promoted aromatic Claisen rearrangement through which the framework connectivity and porosity are maintained.
Data-Driven Modeling And Analysis Of Household Travel Mode Choice, Nagesh Shukla, Jun Ma, Rohan Wickramasuriya Denagamage, Nam N. Huynh
Data-Driven Modeling And Analysis Of Household Travel Mode Choice, Nagesh Shukla, Jun Ma, Rohan Wickramasuriya Denagamage, Nam N. Huynh
SMART Infrastructure Facility - Papers
One of the important problems studied in the area of travel behavior analysis is travel mode choice which is one of the four crucial steps in transportation demand estimation for urban planning. State of the art models in travel demand modelling can be classified as trip based; tour based; and activity based. In trip based approach, each individual trips is modelled as independent and isolated trips i.e. no connections between different trips. In tour based approach, trips that start and end from the same location (home, work, etc) and trips within a tour are dependent on each other. In past …
An Original Synthetic Population Tool Applied To Belgian Case: Virtualbelgium, Eric Cornelis, Laurie Hollaert, Johan Barthelemy, Philippe L. Toint
An Original Synthetic Population Tool Applied To Belgian Case: Virtualbelgium, Eric Cornelis, Laurie Hollaert, Johan Barthelemy, Philippe L. Toint
SMART Infrastructure Facility - Papers
A new tool for building synthetic populations, alleviating the drawbacks of classical methods, is presented. It creates both individuals and households at a quite disaggregated spatial level and simulates the temporal evolution of the built synthetic population.VirtualBelgium, this new tool, is applied on the Belgian case and is coupled with multi-agents models for simulating mobility behaviours.
Reliability-Based Modeling Of Park-And-Ride Service On Linear Travel Corridor, David Wang, Bo Du
Reliability-Based Modeling Of Park-And-Ride Service On Linear Travel Corridor, David Wang, Bo Du
SMART Infrastructure Facility - Papers
The modeling of multimodal choice in a railway-highway system with single park-and-ride service on a linear travel corridor is studied. Commuters choose either auto or railway to travel directly from home to city center or drive to the park-and-ride facility and transfer to railway transit service. Both the traffic congestion on the highway and the crowding on rail transit are considered. The highway capacity is assumed to be stochastic to take into account travel time reliability for use of the auto mode. Commuters are assumed to be distributed uniformly along the corridor. A linear complementarity system to model commuters' mode …
A Critique Of The Productivity Commissions Cost Benefit, Mark D. Harrison
A Critique Of The Productivity Commissions Cost Benefit, Mark D. Harrison
SMART Infrastructure Facility - Papers
In its 2011 NDIS report, the Productivity Commission rationalises its policy recommendation by means of a cost-benefit analysis, claiming that ‘the benefits of the [National Disability Insurance] scheme would significantly outweigh the costs’. But methodology the PC adopts departs from conventional cost-benefit analysis in ways that understates costs, presumes the benefits, muddies policy comparisons, and jumbles equity and efficiency issues. These problems are traceable to the Commission’s use of a ‘distributional weights approach’ to equity benefits. The ‘basic needs approach’ is an alternative way of dealing with equity considerations that better captures the underlying preferences of citizens and the rationale …
Adapting Geospatial Business Intelligence For Regional Infrastructure Planning, Rohan C. Wickramasuriya Denagamage, Pascal Perez, Jun Ma, Matthew J. Berryman
Adapting Geospatial Business Intelligence For Regional Infrastructure Planning, Rohan C. Wickramasuriya Denagamage, Pascal Perez, Jun Ma, Matthew J. Berryman
SMART Infrastructure Facility - Papers
Business Intelligence (BI) has traditionally been used in organizations as a strategic tool to maximize profit. When coupled with Geographic Information Systems, however, BI can be transformed into a cutting edge decision support system for planning local and regional areas, as we demonstrate in this paper. Local and regional governments often face a major challenge in terms of developing a holistic view upon disjointedly operated utility services in their jurisdictions due to data silos. This limitation has become a serious impediment to infrastructure planning and regional adaptation to changes. Geo-BI provides tools to manage data coming from multiple and disparate …
Why Johnny Can't Regulate: The Case Of Natural Monopoly, Henry Ergas
Why Johnny Can't Regulate: The Case Of Natural Monopoly, Henry Ergas
SMART Infrastructure Facility - Papers
This paper examines the difficulties inherent in regulation as a solution to market failure and, especially, to natural monopoly. It highlights the way regulation itself introduces new risks into the supply of natural monopoly services, including the risk of regulatory opportunism, and argues that delegating regulatory functions to ‘independent’ regulators does not in itself solve those risks.
A Novel Approach To Data Deduplication Over The Engineering-Oriented Cloud Systems, Zhe Sun, Jun Shen, Jianming Young
A Novel Approach To Data Deduplication Over The Engineering-Oriented Cloud Systems, Zhe Sun, Jun Shen, Jianming Young
Faculty of Informatics - Papers (Archive)
This paper presents a duplication-less storage system over the engineering-oriented cloud computing platforms. Our deduplication storage system, which manages data and duplication over the cloud system, consists of two major components, a front-end deduplication application and a mass storage system as back-end. Hadoop distributed file system (HDFS) is a common distribution file system on the cloud, which is used with Hadoop database (HBase). We use HDFS to build up a mass storage system and employ HBase to build up a fast indexing system. With a deduplication application, a scalable and parallel deduplicated cloud storage system can be effectively built up. …
Billey's Formula In Combinatorics, Geometry, And Topology, Julianna Tymoczko
Billey's Formula In Combinatorics, Geometry, And Topology, Julianna Tymoczko
Mathematics Sciences: Faculty Publications
In this expository paper we describe a powerful combinatorial formula and its implications in geometry, topology, and algebra. This formula first appeared in the appendix of a book by Andersen, Jantzen, and Soergel. Sara Billey discovered it independently five years later, and it played a prominent role in her work to evaluate certain polynomials closely related to Schubert polynomials. Billey's formula relates many pieces of Schubert calculus: the geometry of Schubert varieties, the action of the torus on the flag variety, combinatorial data about permutations, the cohomology of the flag variety and of the Schubert varieties, and the combinatorics of …
Cgils: Results From The First Phase Of An International Project To Understand The Physical Mechanisms Of Low Cloud Feedbacks In Single Column Models, Minghua Zhang, Christopher S. Bretherton, Peter N. Blossey, Phillip H. Austin, Julio T. Bacmeister, Sandrine Bony, Florent Brient, Suvarchal K. Cheedela, Anning Cheng, Anthony D. Del Genio, Stephan R. De Roode, Satoshi Endo, Charmaine N. Franklin, Jean Christophe Golaz, Cecile Hannay, Thijs Heus
Cgils: Results From The First Phase Of An International Project To Understand The Physical Mechanisms Of Low Cloud Feedbacks In Single Column Models, Minghua Zhang, Christopher S. Bretherton, Peter N. Blossey, Phillip H. Austin, Julio T. Bacmeister, Sandrine Bony, Florent Brient, Suvarchal K. Cheedela, Anning Cheng, Anthony D. Del Genio, Stephan R. De Roode, Satoshi Endo, Charmaine N. Franklin, Jean Christophe Golaz, Cecile Hannay, Thijs Heus
Physics Faculty Publications
CGILS—the CFMIP-GASS Intercomparison of Large Eddy Models (LESs) and single column models (SCMs)—investigates the mechanisms of cloud feedback in SCMs and LESs under idealized climate change perturbation. This paper describes the CGILS results from 15 SCMs and 8 LES models. Three cloud regimes over the subtropical oceans are studied: shallow cumulus, cumulus under stratocumulus, and well-mixed coastal stratus/stratocumulus. In the stratocumulus and coastal stratus regimes, SCMs without activated shallow convection generally simulated negative cloud feedbacks, while models with active shallow convection generally simulated positive cloud feedbacks. In the shallow cumulus alone regime, this relationship is less clear, likely due to …
Degradation Of Algal Palynomorphs On 34-Yr-Old Microscope Slides, Lynn A. Brant
Degradation Of Algal Palynomorphs On 34-Yr-Old Microscope Slides, Lynn A. Brant
Journal of the Iowa Academy of Science: JIAS
Reexamination of 34-yr-old microscope slides of palynological preparations reveals the loss and degradation of algal palynomorphs, in particular the green alga Pediastrum and the desmid Pleurotaenium. Results from this study suggest that great caution should be used when referring co archived palynological slides.
A New Plant Record For Iowa: Lactuca Hirsuta (Asteraceae), Thomas L. Eddy
A New Plant Record For Iowa: Lactuca Hirsuta (Asteraceae), Thomas L. Eddy
Journal of the Iowa Academy of Science: JIAS
A new record of a native vascular plant, Lactuca hirsuta Muhlenberg ex Nuttall var. sanguinea (Bigelow) Fernald, is reported for Iowa. A specimen was collected in 1983 by the author during a study of the Swaledale railroad prairie in Cerro Gordo County, north central Iowa (Eddy 1988). The plant was inexplicably excluded in the species catalogue when a Swaledale railroad flora was published in 1988; thus, this “new” Iowa record in 2013 was collected 30 years prior. The voucher specimen was “re-discovered” by Dr. Neil A. Harriman at the University of Wisconsin-Oshkosh (OSH), and its identification verified.
Smaf: A Soil Health Assessment Tool, D. L. Karlen, C. D. Nance, D. L. Dinnes, D. W. Meek
Smaf: A Soil Health Assessment Tool, D. L. Karlen, C. D. Nance, D. L. Dinnes, D. W. Meek
Journal of the Iowa Academy of Science: JIAS
The Soil Management Assessment Framework (SMAF) was developed to help quantify soil quality/health effects of tillage, crop rotation, and other soil management practices. Our objective was to determine if the SMAF could detect soil health differences after growing a single winter triticale (X Triticosecale Wittmack) crop. Soil samples were collected from 0 to 7.5- and 7.5 to 15- cm depth increments during the 2003 – 2004 and 2004 – 2005 growing seasons near Ames and Lewis, IA, and analyzed for several potential soil quality indicators. The SMAF analysis showed higher soil quality ratings for surface than subsurface samples. It also …
Energy-Aware Scheduling For Acyclic Synchronous Data Flows On Multiprocessors, Dawei Li, Jie Wu
Energy-Aware Scheduling For Acyclic Synchronous Data Flows On Multiprocessors, Dawei Li, Jie Wu
Department of Computer Science Faculty Scholarship and Creative Works
Synchronous Data Flow (SDF) is a useful computational model in image processing, computer vision, and DSP. Previously, throughput and buffer requirement analyses have been studied for SDFs. In this paper, we address energy-aware scheduling for acyclic SDFs on multiprocessors. The multiprocessor considered here has the capability of Dynamic Voltage and Frequency Scaling (DVFS), which allows processors to operate at different power/energy levels to reduce the energy consumption. An acyclic SDF graph can first be transformed to an equivalent homogeneous SDF graph and then to a Directed Acyclic Graph (DAG) for one iteration of it. We propose pipeline scheduling to address …