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Articles 3061 - 3090 of 3219

Full-Text Articles in Physical Sciences and Mathematics

Tribromo(3,5-Dimethyl-2-Nitrophenyl-J2 C1 ,O)Tellurium(Iv), Bromo(3,5-Dimethyl-2-Nitrophenyl-J2 C1 ,O)Tellurium(Ii) And Bromo(3,5-Dimethyl-2-Nitrosophenyl-J2 C1 ,O)Tellurium(Ii), Prabodhika R. Mallikaratchy, Richard E. Norman, Frank R. Fronczek, Thomas Junk Jan 2003

Tribromo(3,5-Dimethyl-2-Nitrophenyl-J2 C1 ,O)Tellurium(Iv), Bromo(3,5-Dimethyl-2-Nitrophenyl-J2 C1 ,O)Tellurium(Ii) And Bromo(3,5-Dimethyl-2-Nitrosophenyl-J2 C1 ,O)Tellurium(Ii), Prabodhika R. Mallikaratchy, Richard E. Norman, Frank R. Fronczek, Thomas Junk

Publications and Research

All three title compounds, prepared from bis(3,5-dimethyl-2- nitrophenyl)ditellurium, exhibit high degrees of intramolecular TeÐO coordination. Their TeÐO distances increase in the order C8H8BrNOTe < C8H8BrNO2Te < C8H8Br3NO2Te, with distances of 2.165 (3), 2.306 (1) and 2.423 (6) AÊ , respectively, indicating that C8H8BrNOTe may be more aptly described as 1-bromo-4,6-dimethyl-2,1,3-benzoxatellurazole.


Robustly Transitive Sets And Heterodimensional Cycles, Christian Bonatti, Lorenzo J. Díaz, Enrique R. Pujals, Jorge Rocha Jan 2003

Robustly Transitive Sets And Heterodimensional Cycles, Christian Bonatti, Lorenzo J. Díaz, Enrique R. Pujals, Jorge Rocha

Publications and Research

It is known that all non-hyperbolic robustly transitive sets Λφ have a dominated splitting and, generically, contain periodic points of different indices. We show that, for a C1-dense open subset of diffeomorphisms φ, the indices of periodic points in a robust transitive set Λφ form an interval in ℕ. We also prove that the homoclinic classes of two periodic points in Λφ are robustly equal. Finally, we describe what sort of homoclinic tangencies may appear in Λφ by studying its dominated splittings.


On String Topology Of Three Manifolds, Hossein Abbaspour Jan 2003

On String Topology Of Three Manifolds, Hossein Abbaspour

Dissertations, Theses, and Capstone Projects

In this dissertation we establish a connection between some aspects of the string topology of three dimensional manifolds and their topology and geometry using the theory of the prime decomposition and characteristic surfaces.


Tr-2002005: Towards A Theory Of Social Software, Rohit Parikh Jan 2002

Tr-2002005: Towards A Theory Of Social Software, Rohit Parikh

Computer Science Technical Reports

No abstract provided.


Tr-2002006: States Of Knowledge, Rohit Parikh Jan 2002

Tr-2002006: States Of Knowledge, Rohit Parikh

Computer Science Technical Reports

No abstract provided.


Tr-2002004: On The Effectiveness Of Tangible Interfaces In Collaborative Learning Environments, Lori L. Scarlatos, Shalva S. Landy, Julia Breban, Robin Horowitz, Chanie Sandberg Jan 2002

Tr-2002004: On The Effectiveness Of Tangible Interfaces In Collaborative Learning Environments, Lori L. Scarlatos, Shalva S. Landy, Julia Breban, Robin Horowitz, Chanie Sandberg

Computer Science Technical Reports

No abstract provided.


Tr-2002001: Can We Optimize Toeplitz/Hankel Computations?, V. Y. Pan Jan 2002

Tr-2002001: Can We Optimize Toeplitz/Hankel Computations?, V. Y. Pan

Computer Science Technical Reports

No abstract provided.


Tr-2002007: Ubiquitous Puzzle Pieces: 3d Tangible Interfaces For Collaborative Learning Environments, Lori L. Scarlatos, Shalva S. Landy, Saira Qureshi Jan 2002

Tr-2002007: Ubiquitous Puzzle Pieces: 3d Tangible Interfaces For Collaborative Learning Environments, Lori L. Scarlatos, Shalva S. Landy, Saira Qureshi

Computer Science Technical Reports

No abstract provided.


Tr-2002002: Can We Optimize Toeplitz/Hankel Computations? Ii. Singular Toeplitz/Hankel-Like Case, V. Y. Pan Jan 2002

Tr-2002002: Can We Optimize Toeplitz/Hankel Computations? Ii. Singular Toeplitz/Hankel-Like Case, V. Y. Pan

Computer Science Technical Reports

No abstract provided.


Tr-2002008: Investigation Of The Sensitivity Of The Monte Carlo Solution For The Barker-Ferry Equation Using Different Sequential And Parallel Pseudo-Random Number Generators, T. V. Gurov, P. A. Whitlock Jan 2002

Tr-2002008: Investigation Of The Sensitivity Of The Monte Carlo Solution For The Barker-Ferry Equation Using Different Sequential And Parallel Pseudo-Random Number Generators, T. V. Gurov, P. A. Whitlock

Computer Science Technical Reports

No abstract provided.


Tr-2002010: Programming Finite-Domain Constraint Propagators In Action Rules, Neng-Fa Zhou Jan 2002

Tr-2002010: Programming Finite-Domain Constraint Propagators In Action Rules, Neng-Fa Zhou

Computer Science Technical Reports

No abstract provided.


Tr-2002011: Corpus-Based Ambiguity Resolution Of Biomedical Terms Using Knowledge Bases And Machine Learning, Hongfang Liu Jan 2002

Tr-2002011: Corpus-Based Ambiguity Resolution Of Biomedical Terms Using Knowledge Bases And Machine Learning, Hongfang Liu

Computer Science Technical Reports

No abstract provided.


Tr-2002018: How Frequently Is A Matrix Nonsingular?, Xinmao Wang Jan 2002

Tr-2002018: How Frequently Is A Matrix Nonsingular?, Xinmao Wang

Computer Science Technical Reports

No abstract provided.


Tr-2002019: Improved Algorithms For Computing Determinants And Resultants, Ioannis Z. Emiris, Victor Y. Pan Jan 2002

Tr-2002019: Improved Algorithms For Computing Determinants And Resultants, Ioannis Z. Emiris, Victor Y. Pan

Computer Science Technical Reports

No abstract provided.


Tr-2002020: Inverse Power And Durand-Kerner Iterations For Univariate Polynomial Root-Finding, D. A. Bini, L. Gemignani, V. Y. Pan Jan 2002

Tr-2002020: Inverse Power And Durand-Kerner Iterations For Univariate Polynomial Root-Finding, D. A. Bini, L. Gemignani, V. Y. Pan

Computer Science Technical Reports

No abstract provided.


Tr-2002015: Residual Correction Algorithms For General And Structured Matrices, V. Y. Pan, M. Kunin, R. E. Rosholt, H. Cebecioglu Jan 2002

Tr-2002015: Residual Correction Algorithms For General And Structured Matrices, V. Y. Pan, M. Kunin, R. E. Rosholt, H. Cebecioglu

Computer Science Technical Reports

No abstract provided.


Tr-2002003: Univariate Polynomial Root-Finding With A Lower Computational Precision And Higher Convergence Rates, V. Y. Pan Jan 2002

Tr-2002003: Univariate Polynomial Root-Finding With A Lower Computational Precision And Higher Convergence Rates, V. Y. Pan

Computer Science Technical Reports

No abstract provided.


Tr-2002009: A Formal Semantics For Uml With Real-Time Constructs, Subash Shankar Jan 2002

Tr-2002009: A Formal Semantics For Uml With Real-Time Constructs, Subash Shankar

Computer Science Technical Reports

No abstract provided.


Tr-2002012: The Aggregation And Cancellation Techniques As A Practical Tool For Faster Matrix Multiplication, Igor Kaporin Jan 2002

Tr-2002012: The Aggregation And Cancellation Techniques As A Practical Tool For Faster Matrix Multiplication, Igor Kaporin

Computer Science Technical Reports

No abstract provided.


Tr-2002013: Toward A High-Performance System For Symbolic And Statistical Modeling, Neng-Fa Zhou, Taisuke Sato Jan 2002

Tr-2002013: Toward A High-Performance System For Symbolic And Statistical Modeling, Neng-Fa Zhou, Taisuke Sato

Computer Science Technical Reports

No abstract provided.


Tr-2002014: Iterative Inversion Of Structured Matrices, Gianni Codevico, Victor Y. Pan, Marc Van Barel, Xinmao Wang Jan 2002

Tr-2002014: Iterative Inversion Of Structured Matrices, Gianni Codevico, Victor Y. Pan, Marc Van Barel, Xinmao Wang

Computer Science Technical Reports

No abstract provided.


Tr-2002016: Optimization Of Basis Functions For Both Reconstruction And Visualization, Edgar Garduño, Gabor T. Herman Jan 2002

Tr-2002016: Optimization Of Basis Functions For Both Reconstruction And Visualization, Edgar Garduño, Gabor T. Herman

Computer Science Technical Reports

No abstract provided.


Tr-2002017: Nearly Optimal Toeplitz/Hankel Computations, Victor Y. Pan Jan 2002

Tr-2002017: Nearly Optimal Toeplitz/Hankel Computations, Victor Y. Pan

Computer Science Technical Reports

No abstract provided.


Combinatorial Chemistry: A Guide For Librarians, Philip Barnett Jan 2002

Combinatorial Chemistry: A Guide For Librarians, Philip Barnett

Publications and Research

No abstract provided.


0920+3517_Nir_Spex, Maria Teresa Ruiz Mar 2001

0920+3517_Nir_Spex, Maria Teresa Ruiz

Publications and Research

No abstract provided.


The Effects Of Buffer And Temperature Feedback On The Oceanic Uptake Of Co2, Chuixiang Yi, Peng Gong, Ming Xu, Ye Qi Mar 2001

The Effects Of Buffer And Temperature Feedback On The Oceanic Uptake Of Co2, Chuixiang Yi, Peng Gong, Ming Xu, Ye Qi

Publications and Research

The feedback between climate and carbon cycle systems is critical to the prediction of future CO2 concentration in the atmosphere and the capacity of the oceans to take up CO2 from the atmosphere. We calculated the magnitudes of the potential feedback between the increase of atmospheric CO2 concentration, the carbonate chemistry of the oceans (via a buffer factor), and the global temperature. We find that the magnitude of the buffer feedback depends strongly on the level of the dissolved inorganic carbon (DIC) in the oceans and increases rapidly with the increase of the atmospheric CO …


What Is Environmental Literacy? (Book Review), Aldemaro Romero Jr. Jan 2001

What Is Environmental Literacy? (Book Review), Aldemaro Romero Jr.

Publications and Research

No abstract provided.


1237+6526_Opt_Lris, Adam J. Burgasser Jul 2000

1237+6526_Opt_Lris, Adam J. Burgasser

Publications and Research

No abstract provided.


Influence Of Advection On Measurements Of The Net Ecosystem-Atmosphere Exchange Of Co2 From A Very Tall Tower, Chuixiang Yi, Kenneth J. Davis, Peter S. Bakwin, Bernard W. Berger, Linsey C. Marr Apr 2000

Influence Of Advection On Measurements Of The Net Ecosystem-Atmosphere Exchange Of Co2 From A Very Tall Tower, Chuixiang Yi, Kenneth J. Davis, Peter S. Bakwin, Bernard W. Berger, Linsey C. Marr

Publications and Research

In most studies of the net ecosystem-atmosphere exchange of CO2 (NEE) using tower-based eddy covariance( EC) systems it has been assumed that advection is negligible. In this study we use a scalar conservation budget method to estimate the contribution of advection to NEE measurements from a very tall tower in northern Wisconsin. We examine data for June-August 1997. Measured NEEo, calculated as the sum of the EC flux plus the rate of change of storage below the EC measurement level, is expected to be constant with measurement height, and we take the differences between levels as a measure of …


The Total Environmentalist, Aldemaro Romero Jr. Jan 2000

The Total Environmentalist, Aldemaro Romero Jr.

Publications and Research

No abstract provided.