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Articles 2431 - 2460 of 2472
Full-Text Articles in Physical Sciences and Mathematics
Compositions Of Two Additive Almost Continuous Functions, Krzysztof Ciesielski
Compositions Of Two Additive Almost Continuous Functions, Krzysztof Ciesielski
Faculty & Staff Scholarship
In the paper we prove that an additive Darboux function f : R → R can be expressed as a composition of two additive almost continuous (connectivity) functions if and only if either f is almost continuous (connectivity) function or dim(ker(f)) 6= 1. We also show that for every cardinal number λ ≤ 2 ω there exists an additive almost continuous functions with dim(ker(f)) = λ. A question whether every Darboux function f : R → R can be expressed as a composition of two almost continuous functions (see [?] or [?]) remains open.
Algebraic Fiberings Of Grassmann Varieties, R. J. D. Ferdinands, R. E. Schultz
Algebraic Fiberings Of Grassmann Varieties, R. J. D. Ferdinands, R. E. Schultz
University Faculty Publications and Creative Works
No abstract provided.
An Examination Of Environmental Sensitivity Among Supporters Of An Outdoor Recreation Area, Rodney James Blackman
An Examination Of Environmental Sensitivity Among Supporters Of An Outdoor Recreation Area, Rodney James Blackman
Dissertations and Theses @ UNI
The environment as an issue has been prominently before the public for over three decades. Yet the question of how much people know about the natural environment and how committed they are to the environment has seldom been considered in research literature. Research of this nature is needed because without it individuals interested in the preservation and conservation of the environment cannot be sure how their efforts to increase people's environmental sensitivity should be applied. The purpose of this study was to examine the level and extent of environmental sensitivity among supporters of an outdoor recreation area/facility in northeast Iowa. …
Global Attractors From The Explosion Of Singular Cycles, Carlos Arnoldo Morales, Maria José Pacífico, Enrique Ramiro Pujals
Global Attractors From The Explosion Of Singular Cycles, Carlos Arnoldo Morales, Maria José Pacífico, Enrique Ramiro Pujals
Publications and Research
Abstract:
In this paper we announce recent results on the existence and bifurcations of hyperbolic systems leading to non-hyperbolic global attractors.
Résumé:
Nous présentons dans cette Note des résultats récents concernant l’existence et les bifurcations d’un nouvel attracteur global chaotique.
Saltwater Angling And Its Economic Importance To Virginia, James Kirkley, David Kerstetter
Saltwater Angling And Its Economic Importance To Virginia, James Kirkley, David Kerstetter
Reports
No abstract provided.
Virginia Game Fish Tagging Program Annual Report 1996, Cm Bain Iii, John A. Lucy
Virginia Game Fish Tagging Program Annual Report 1996, Cm Bain Iii, John A. Lucy
Reports
The Virginia Game Fish Tagging Program (VGFfP), a cooperative project of the Virginia Marine Resources Commission and the Virginia Institute of Marine Science (VIMS), enjoyed its second full year of operation in 1996. Participation in the project, which is funded with revenues generated by Virginia's saltwater recreational fishing license, nearly doubled with 127 anglers volunteering as taggers compared to 64 in 1995.
Review Of Mathematica 3.0, Stan Wagon
Software Reuse: Architecture, Process And Organization For Business Success, Ivar Jacobson, Martin Griss, Patrik Jonsson
Software Reuse: Architecture, Process And Organization For Business Success, Ivar Jacobson, Martin Griss, Patrik Jonsson
Martin L Griss
No abstract provided.
Constraint Satisfaction Methods For Generating Valid Cuts, John Hooker
Constraint Satisfaction Methods For Generating Valid Cuts, John Hooker
John Hooker
No abstract provided.
Statistics For Logisticians, Caroline Lubert
A Niobium(V) Complex With Mixed O,S-Donor Ligands. Synthesis, Structure And Properties Of The Anion Tris(2-Mercapto-4-Methylphenolato)Niobate(V), Paul Challen, Diane Peapus, Karen Magnes
A Niobium(V) Complex With Mixed O,S-Donor Ligands. Synthesis, Structure And Properties Of The Anion Tris(2-Mercapto-4-Methylphenolato)Niobate(V), Paul Challen, Diane Peapus, Karen Magnes
Paul R. Challen
Reaction of Nb(OEt)5 with 2-mercapto-4-methylphenol (mmpH2) in the presence of triethylamine gave the mononuclear tris complex (Et3NH)[Nb(mmp)3] which was structurally characterized. The coordination geometry around the niobium is between octahedral and trigonal prismatic, with a twist angle of 41.5°. The mercaptophenolate ligands are arranged around the metal in a “propeller” fashion. (Et3NH)[Nb(mmp)3] was characterized by IR, 1H NMR and UV-vis spectroscopies, and cyclic voltammetry. A reversible reduction wave found at −1.03 V is for reduction to the NbIV complex.
Effectiveness Of The Protected Area Network In Biodiversity Conservation: A Case-Study Of Meghalaya State, M. Latif Khan, Shaily Menon, Kamaljit Bawa
Effectiveness Of The Protected Area Network In Biodiversity Conservation: A Case-Study Of Meghalaya State, M. Latif Khan, Shaily Menon, Kamaljit Bawa
Shaily Menon
The North-Eastern region of India is significant for biodiversity conservation because of its floristic richness and high levels of endemism. Deforestation levels are high in the region due to anthropogenic pressures. We accessed various literature sources to create a database for Meghalaya state containing information on plant species, habit, altitudinal distribution, endemism, and endangered status. Information on the existing protected area network (type, extent, and altitudinal representation) was added to the database. The database was used to assess the effectiveness of the existing protected area network in conserving the floristic biodiversity of the state. Of a total of 3331 plant …
Activities Of The Ilo In The Field Of The Environment, Cleopatra Doumbia-Henry
Activities Of The Ilo In The Field Of The Environment, Cleopatra Doumbia-Henry
Cleopatra Doumbia-Henry
No abstract provided.
Synthesis Of Bulk, Polycrystalline Gallium Nitride At Low Pressures, Alberto Argoitia, John Angus, Cliff Hayman, Long Wang, Jeffrey Dyck, Kathleen Kash
Synthesis Of Bulk, Polycrystalline Gallium Nitride At Low Pressures, Alberto Argoitia, John Angus, Cliff Hayman, Long Wang, Jeffrey Dyck, Kathleen Kash
Jeffrey Dyck
Bulk, polycrytalline gallium nitride was crystallized from gallium saturated with nitrogen obtained from a microwave electron cyclotron resonance source. The polycrystalline samples are wurtzitic and n-type. Well-faceted crystals give near-band-edge and yellow band photo-luminescence at both 10K and 300K. The results show that atomic nitrogen is an attractive alternative to high pressure molecular nitrogen for saturation of gallium with nitrogen for synthesis of bulk gallium nitride.
Computer System For Simulating Physical Processes Using Multiple Integer State Vectors Us:5594671, Hudong Chen, Peter Churchill, Robert Iannucci, Kim Molvig, Gregory Papadopoulos, Stephen Remondi, Christopher Teixeira, Kenneth Traub
Computer System For Simulating Physical Processes Using Multiple Integer State Vectors Us:5594671, Hudong Chen, Peter Churchill, Robert Iannucci, Kim Molvig, Gregory Papadopoulos, Stephen Remondi, Christopher Teixeira, Kenneth Traub
Robert A Iannucci
No abstract provided.
Essential Laminations In Graph Manifolds, Ramin Naimi, Mark Brittenham, Rachel Roberts
Essential Laminations In Graph Manifolds, Ramin Naimi, Mark Brittenham, Rachel Roberts
Ramin Naimi
No abstract provided.
Voltammetric Studies Of Mn@C82, Mark Anderson, Harry Dorn, Paul Burbank, James Gibson
Voltammetric Studies Of Mn@C82, Mark Anderson, Harry Dorn, Paul Burbank, James Gibson
Mark R. Anderson
The voltammetry for a series of related endohedral metallofullerenes is reported. It is found that as additional metal atoms are inserted into the fullerene cage, the first reduction of the metallofullerenes shifts to more negative potentials. This is consistent with more charge being transferred to the fullerene cage from the additional metal atom; however, the magnitude of the shift is much smaller than expected.
Growth Of Bulk, Polycrystalline Gallium And Indium Nitride At Sub-Atmospheric Pressures, John Angus, Alberto Argoitia, Cliff Hayman, Long Wang, Jeffrey Dyck, Kathleen Kash
Growth Of Bulk, Polycrystalline Gallium And Indium Nitride At Sub-Atmospheric Pressures, John Angus, Alberto Argoitia, Cliff Hayman, Long Wang, Jeffrey Dyck, Kathleen Kash
Jeffrey Dyck
Bulk polycrystalline gallium nitride and indium nitride were crystallized at sub-atmospheric pressures by saturating the pure metals with nitrogen from a microwave electron cyclotron resonance source. Saturation of Ga/In melts with nitrogen led only to the crystallization of gallium nitride. The polycrystralline samples were wurtzitic. The gallium nitride was well faceted, with narrow Raman lineshapes, and showed near-band-edge and yellow band photo-luminescence at both 4K and 300K. The indium nitirde was formed in smaller amounts, was less well faceted, and showed no photoluminescence.
Alte Und Neue Ungeloste Probleme In Der Zahlentheorie Und Geoetrie Der Ebene (Online), Stan Wagon
Alte Und Neue Ungeloste Probleme In Der Zahlentheorie Und Geoetrie Der Ebene (Online), Stan Wagon
Stan Wagon, Retired
No abstract provided.
The Linear Potential Propagator, Br Holstein
The Linear Potential Propagator, Br Holstein
Barry R Holstein
The Feynman propagator for the case of a linear potential is evaluated by a variety of means.
Uniformly Adaptive Estimation For Models With Arma Errors, Douglas Steigerwald
Uniformly Adaptive Estimation For Models With Arma Errors, Douglas Steigerwald
Douglas G. Steigerwald
A semiparametric estimator based on an unknown density is uniformly adaptive if the expected loss of the estimator converges to the asymptotic expected loss of the maximum likelihood estimator based on the true density (MLE), and if convergence does not depend on either the parameter values or the form of the unknown density. Without uniform adaptivity, the asymptotic expected loss of the MLE need not approximate the expected loss of a semiparamteric estimator for any finite sample. I show that a two-step semiparametric estimator is uniformly adaptive for the parameters of nonlinear regression models with autoregressive moving average errors.
Biodiversity Monitoring: The Missing Ingredient, Kamaljit Bawa, Shaily Menon
Biodiversity Monitoring: The Missing Ingredient, Kamaljit Bawa, Shaily Menon
Shaily Menon
With mounting losses in biological diversity, inventorying and monitoring of biodiversity to assess the magnitude and rate of losses are emerging as dominant themes in conservation biology. Inventorying has been defined as the surveying, sorting, cataloging, quantifying and mapping of entities ranging from genes to landscapes1 and monitoring has been defined as the surveillance of the compliance with or deviation from a predetermined standard2. Renner and Ricklefs3 argued that rushed inventories will compromise scientific rigor and have little influence on decision making. More recently, Stork et al.4 argued that losses in biological diversity are so severe that inventorying and monitoring …
The Elastic Moduli Of Random Networks: Calculations, Anthony Day
The Elastic Moduli Of Random Networks: Calculations, Anthony Day
Anthony Roy Day
No abstract provided.
Mathematica In Action., Stan Wagon
A Challenge Form Leningrad, Stan Wagon
What Is A Prime Number?, Stan Wagon, D. Schattschneider, R. Mabry
What Is A Prime Number?, Stan Wagon, D. Schattschneider, R. Mabry
Stan Wagon, Retired
No abstract provided.
Constructing Essential Laminations In 2-Bridge Knot Surgered 3-Manifolds, Ramin Naimi
Constructing Essential Laminations In 2-Bridge Knot Surgered 3-Manifolds, Ramin Naimi
Ramin Naimi
A nontrivial knot that can be drawn with only two relative maxima in the vertical direction is called a 2-bridge knot, and one that can be drawn on a torus is called a torus knot. Loosely speaking, a lamination in a manifold M is a foliation of M, except that it can have a nonempty open complement in M, and very loosely speaking, the lamination is essential if each leaf of it L is incompressible, i.e. inclusion of L into M induces an injective homomorphism from π1(L) into π1(M). Our main result is: Theorem 2. Every 3-manifold obtained by surgery …
Supportability Analysis Of Repairable Systems With Parallel Configurations, Caroline Lubert, J. Knezevic
Supportability Analysis Of Repairable Systems With Parallel Configurations, Caroline Lubert, J. Knezevic
Caroline P Lubert
No abstract provided.
Is There Environmental Racism? The Demographics Of Hazardous Waste In Los Angeles County, J. Boer, Manuel Pastor, James Sadd, Lori Snyder
Is There Environmental Racism? The Demographics Of Hazardous Waste In Los Angeles County, J. Boer, Manuel Pastor, James Sadd, Lori Snyder
James Sadd
The article assesses the location of treatment, storage and disposal facilities (TSDF) in Los Angeles County, California, with focus on racism. The study shows that a simple comparison of tracts with and without TSDF reveals statistically significant differences by race and economic status along the lines suggested by the environmental justice proponents. There are also significant differences by industrial land use and manufacturing employment along the lines suggested by critics of the environmental justice concept. In this multivariate model race, along with industrial land use and employment in manufacturing, remains a factor, rising income that has a positive then a …
The Aeroacoustics And Aerodynamics Of High-Speed Coanda Devices: Part 2. Effects Of Modifications For Flow Control And Noise Reduction, Caroline Lubert, P. Carpenter
The Aeroacoustics And Aerodynamics Of High-Speed Coanda Devices: Part 2. Effects Of Modifications For Flow Control And Noise Reduction, Caroline Lubert, P. Carpenter
Caroline P Lubert
No abstract provided.