David Becker

GermanTeam 2008 The German National RoboCup Team (2009)

David Becker, Jörg Brose, Daniel Göhring, Matthias Jüngel, Max Risler, Thomas Röfer

The GermanTeam participates as a national team in the RoboCup Four-Legged League since 2001. It currently consists of students and researchers from the Humboldt-Universität zu Berlin, the...

Abstract Extensibility, Safety and Performance in the SPIN Operating System (2008)

Brian N. Bershad, Stefan Savage, Przemysław Pardyak, Emin Gün Sirer, Marc E. Fiuczynski, David Becker, ...

This paper describes the motivation, architecture and performance of SPIN, an extensible operating system. SPIN provides an extension infrastructure, together with a core set of extensible services,...

Chapter 14 Techniques for dye injection and cell labelling (2008)

Peter Mobbs, David Becker, Roddy Williamson, Michael Bate, Anne Warner

The introduction of compounds into cells via iontophoresis or pressure injection from micropipettes is a powerful technique of wide application in modern biology. The many uses to which this...

Advisory Group on Educing Information (2008)

Robert A. Fein, Ph. D, David Becker, Defense Intelligence Agency, Robert Mcfadden, Counterintelligence Field Activity, ...

leaders on emerging scientifi c and technical issues of special importance to the Intelligence Community. The mission of the Board is to provide the Intelligence Community with outside expert advice...

Common Information Model – A Developer’s Perspective etrep02.pdf (2008)

Robin Podmore, David Becker, Rob Fairchild, Marck Robinson

a utility industry standard object-model for the development and integration of applications used for electric power systems engineering, planning, management, operation and commerce. This paper...

Approved for Public Release; Distribution Unlimited. (07-1216) A FLEXIBLE AND GENERIC DATA QUALITY METAMODEL (Research-in-Progress) (2008)

David Becker, William Mcmullen, Kevin Hetherington-young

Abstract: DQ metadata can be stored in a Metadata Repository (MDR). The structure of the MDR should be carefully defined to ensure a maximum amount of flexibility, generality and ease of use. It...

Abstract Extensibility, Safety and Performance in the SPIN Operating System (2008)

Brian N. Bershad, Stefan Savage, Przemysław Pardyak, Emin Gün Sirer, Marc E. Fiuczynski, David Becker, ...

This paper describes the motivation, architecture and performance of SPIN, an extensible operating system. SPIN provides an extension infrastructure, together with a core set of extensible services,...

Abstract Extensibility, Safety and Performance in the SPIN Operating System (2008)

Brian N. Bershad, Stefan Savage, Przemyslaw Pardyak, Emin Gun Sirer, Marc E. Fiuczynski, David Becker, ...

This paper describes the motivation, architecture and performance of SPIN, an extensible operating system. SPIN provides an extension infrastructure, together with a core set of extensible services,...

The question of coherence in Schopenhauer's system: An examination of the doctrine of the Will's self-overcoming (2008)

Becker, David

Since the latter portion of his life, in the middle of the Nineteenth Century, Arthur Schopenhauer has been one of the most influential figures in the cultural and intellectual history of European...

The Design, Implementation, and Use of a Sporadic Tasking Model (2007)

Kevin Jeffay David, David Becker, David Bennett, Shaun Bharrat, Timothy Gramling, Mark Housel

Introduction This paper describes the design, implementation, and use of a model of sporadic tasks in the Real-Time Mach kernel (MK83) [15]. The purpose of this exercise was two-fold. First, was our...

The Design, Implementation, and Use of a Sporadic Tasking Model (2007)

Kevin Jeffay, David Becker, David Bennett, Shaun Bharrat, Timothy Gramling, Mark Housel

: This paper describes the design, implementation, and use of a model of sporadic tasks in the Real-Time Mach kernel (MK83). This provides a programming model in real-Time Mach (RT-Mach) that is...

Abstract (2007)

Priya Mahadevan, Adolfo Rodriguez, David Becker, Amin Vahdat

The current state of the art in evaluating applications and communication protocols for ad hoc wireless networks involves either simulation or small-scale live deployment. While larger-scale...

Sharing Networked Resources with Brokered Leases (2006)

David Irwin, Jeffrey Chase, Laura Grit, Aydan Yumerefendi, David Becker

This paper presents the design and implementation of Shirako, a system for on-demand leasing of shared networked resources. Shirako is a prototype of a serviceoriented architecture for resource...

Sharing Networked Resources with Brokered Leases (2006)

David Irwin, Jeffrey Chase, Laura Grit, Aydan Yumerefendi, David Becker

This paper presents the design and implementation of Shirako, a system for on-demand leasing of shared networked resources. Shirako is a prototype of a serviceoriented architecture for resource...

Sharing Networked Resources with Brokered Leases (2006)

David Irwin, Jeffrey Chase, Laura Grit, Aydan Yumerefendi, David Becker

This paper presents the design and implementation of Shirako, a system for on-demand leasing of shared networked resources. Shirako is a prototype of a serviceoriented architecture for resource...

C5'- and C3'-sugar radicals produced via photo-excitation of one-electron oxidized adenine in 2'-deoxyadenosine and its derivatives (2006)

Adhikary, Amitava, Becker, David, Collins, Sean, Koppen, Jessica, Sevilla, Michael D.

We report that photo-excitation of one-electron-oxidized adenine [A(-H)•] in dAdo and its 2′-deoxyribonucleotides leads to formation of deoxyribose sugar radicals in remarkably high yields....

Sugar Radicals in DNA: Isolation of Neutral Radicals in Gamma-Irradiated DNA by Hole and Electron Scavenging (2005)

Lata I. Shukla, Robert Pazdro, David Becker, Michael D. Sevilla

Shukla, L. I., Pazdro, R., Becker, D. and Sevilla, M. D. Sugar Radicals in DNA: Isolation of Neutral Radicals in Gamma-Irradiated DNA by Hole and Electron Scavenging. Radiat. Res. 163, 591–602...

Track Structure in DNA Irradiated with Heavy Ions (2005)

Michael K. Bowman, David Becker, Michael D. Sevilla, John D. Zimbrick

Bowman, M. K., Becker, D., Sevilla, M. D. and Zimbrick, J. D. Track Structure in DNA Irradiated with Heavy Ions. Radiat. Res. 163, 447–454 (2005). The spatial properties of trapped radicals...

UVA-visible photo-excitation of guanine radical cations produces sugar radicals in DNA and model structures (2005)

Adhikary, Amitava, Malkhasian, Aramice Y. S., Collins, Sean, Koppen, Jessica, Becker, David, Sevilla, Michael D.

This work presents evidence that photo-excitation of guanine radical cations results in high yields of deoxyribose sugar radicals in DNA, guanine deoxyribonucleosides and deoxyribonucleotides. In...

Framgångsdrivare hos företagsekonomiska institutioner - en komparativ studie (2004)

Becker, David, Edberg, Per, Niska, Andreas

Syftet med denna studie är att undersöka och skapa förståelse för vilka framgångsdrivarna är för företagsekonomiska institutioner. För att kunna uppfylla syftet har vi tagit fram...

The Formation of DNA Sugar Radicals from Photoexcitation of Guanine Cation Radicals (2004)

Lata I. Shukla, Robert Pazdro, James Huang, Christopher DeVreugd, David Becker, Michael D. Sevilla

Shukla, L. I., Pazdro, R., Huang, J., DeVreugd, C., Becker, D. and Sevilla, M. D. The Formation of DNA Sugar Radicals from Photoexcitation of Guanine Cation Radicals. Radiat. Res. 161, 582–590...

Formation of 8-oxo-7,8-dihydroguanine-radicals in {gamma}-irradiated DNA by multiple one-electron oxidations (2004)

Shukla, Lata I., Adhikary, Amitava, Pazdro, Robert, Becker, David, Sevilla, Michael D.

Electron spin resonance (ESR) studies of radicals formed by radiation-induced multiple one-electron oxidations of guanine moieties in DNA are reported in this work. Annealing of gamma-irradiated DNA...

Electron Spin Resonance Study of DNA Irradiated with an Argon-Ion Beam: Evidence for Formation of Sugar Phosphate Backbone Radicals (2003)

David Becker, Amanda Bryant-Friedrich, CherylAnn Trzasko, Michael D. Sevilla

Becker, D., Bryant-Friedrich, A., Trzasko, C. and Sevilla, M. D. Electron Spin Resonance Study of DNA Irradiated with an Argon-Ion Beam: Evidence for Formation of Sugar Phosphate Backbone Radicals....

Toward Scaling Network Emulation using Topology Partitioning (2003)

Ken Yocum, Ethan Eade, Julius Degesys, David Becker, Jeff Chase, Amin Vahdat

Network systems and services are growing in scale and complexity; evaluation infrastructures must scale to study these systems under realistic Internet-like scenarios. This paper studies topology...

Toward Scaling Network Emulation using Topology Partitioning (2003)

Ken Yocum Ethan, Ethan Eade, Julius Degesys, David Becker, Jeff Chase, Amin Vahdat

Scalability is the primary challenge to studying large complex network systems with network emulation. This paper studies topology partitioning, assigning disjoint pieces of the network topology...

Scalability and Accuracy in a Large-Scale Network Emulator (2002)

Amin Vahdat, Ken Yocum, Kevin Walsh, Priya Mahadevan, Dejan Kostić, Jeff Chase, ...

Permission is granted for noncommercial reproduction of the work for educational or research purposes.

Scalability and Accuracy in a Large-Scale Network Emulator (2002)

Amin Vahdat Ken, Ken Yocum, Kevin Walsh, Priya Mahadevan, Dejan Kostić, Jeff Chase, ...

This paper presents ModelNet, a scalable Internet emulation environment that enables researchers to deploy unmodified software prototypes in a configurable Internet-like environment and subject them...

Epidemic Routing for Partially-Connected Ad Hoc Networks (2000)

Amin Vahdat, David Becker

Mobile ad hoc routing protocols allow nodes with wireless adaptors to communicate with one another without any pre-existing network infrastructure. Existing ad hoc routing protocols, while robust to...

Detour: a Case for Informed Internet Routing and Transport (1999)

Stefan Savage, Tom Anderson; Amit Aggarawl, Tom Anderson, Amit Aggarwal, David Becker, Neal Cardwell, ...

Despite its obvious success, robustness, and scalability, the Internet suffers from a number of end-to-end performance and availability problems. In this paper, we attempt to quantify the...

Detour: a case for informed internet routing and transport (1999)

Stefan Savage, Tom Anderson, Amit Aggarwal, David Becker, Neal Cardwell, Andy Collins, ...

Despite its obvious success, robustness, and scalability, the Internet suffers from a number of end-to-end performance and availability problems. In this paper, we attempt to quantify the...

Using A Virtual Environment to Teach Cancer Patients T'ai Chi, Relaxation and Self-Imagery (1997)

David Becker, Alex Pentland

We present a computer vision and virtual reality application for cancer patients. Currently, visualization and imagery techniques are becoming an accepted adjunct in the treatment of cancer. Mounting...

Language Support for Extensible Operating Systems (1996)

Wilson Hsieh, Marc Fiuczynski, Charles Garrett, Stefan Savage, David Becker, Brian Bershad

We have identified three areas where language support for operating system extensibility is important: performance, safety, and expressive power. First, an extension language should support...

Language Support for Extensible Operating Systems (1996)

Wilson C. Hsieh, Marc E. Fiuczynski, Charles Garrett, Stefan Savage, David Becker, Brian N. Bershad

We have identified three areas where language support for operating system extensibility is important: performance, safety, and expressive power. First, an extension language should support...

Extensibility, safety and performance in the SPIN operating system (1995)

Brian N. Bershad, Stefan Savage, Przemys Pardyak, Emin Gun Sirer, Marc E. Fiuczynski, David Becker, ...

This paper describes the motivation, architecture and performance of SPIN, an extensible operating system. SPIN provides an extension infrastructure, together with a core set of extensible services,...

Extensibility, safety and performance in the SPIN operating system (1995)

Brian N. Bershad, Stefan Savage, Przemys Pardyak, Emin Gun Sirer, Marc E. Fiuczynski, David Becker, ...

This paper describes the motivation, architecture and performance of SPIN, an extensible operating system. SPIN provides an extension infrastructure, together with a core set of extensible services,...

Extensibility, safety and performance in the SPIN operating system (1995)

Brian N. Bershad, Stefan Savage, Emin Gun Sirer, Marc E. Fiuczynski, David Becker, Craig Chambers, ...

This paper describes the motivation, architecture and performance of SPIN, an extensible operating system. SPIN provides an extension infrastructure, together with a core set of extensible services,...

Extensibility, safety and performance in the SPIN operating system (1995)

Brian N. Bershad, Stefan Savage, Emin Gun Sirer, Marc E. Fiuczynski, David Becker, Craig Chambers, ...

This paper describes the motivation, architecture and performance of SPIN, an extensible operating system. SPIN provides an extension infrastructure, together with a core set of extensible services,...

Extensibility, Safety and Performance in the SPIN Operating System (1995)

Brian N. Bershad, Stefan Savage, Przemyslaw Pardyak, Emin Gün Sirer, Emin Gun Sirer, Marc Fiuczynski, ...

This paper describes the motivation, architecture and performance of SPIN, an extensible operating system. SPIN provides an extension infrastructure together with a core set of extensible services...

Protection is a Software Issue (1995)

Brian N. Bershad, Stefan Savage, Przemyslaw Pardyak, David Becker, Marc Fiuczynski, Emin Gün Sirer, ...

moters of these systems imply that their reliability and integrity derive solely from the use of a core set of protected hardware mechanisms, such as address spaces and protected supervisor mode...

Extensibility, safety and performance in the SPIN operating system (1995)

Brian N. Bershad, Stefan Savage, Przemys Pardyak, Emin Gun Sirer, Marc E. Fiuczynski, David Becker, ...

This paper describes the motivation, architecture and performance of SPIN, an extensible operating system. SPIN provides an extension infrastructure, together with a core set of extensible services,...

An Engineering Environment for Hardware/Software Co-Simulation (1992)

David Becker, Raj K. Singh, Stephen G. Tell

We describe an environment supporting concurrent hardware and software engineering for high performance systems. In place of a conventional bread-boarded prototype, we used distributed communicating...

VISTAnet Network Interface Unit: Future Communications Research (1991)

Raj K. Singh, Stephen G. Tell, David Becker, Shaun J. Bharrat

2 1. Introduction 2 2. Overview 3 2.1 B-ISDN Network 3 2.2 Network Interfaces 4 3. NIU Performance and Service Goals 4 4. Future Research 7 4.1 Software Architecture 7 4.1.1 Object-oriented design 7...

Involvement of estrogen receptor β in terminal differentiation of mammary gland epithelium

Förster, Carola, Mäkela, Sari, Wärri, Anni, Kietz, Silke, Becker, David, Hultenby, Kjell, ...

The mammary glands of prepubertal estrogen receptor (ER)β−/− mice are morphologically indistinguishable from those of WT littermates. It appears that, although ERβ is expressed in the mouse...

Formation of 8-oxo-7,8-dihydroguanine-radicals in γ-irradiated DNA by multiple one-electron oxidations

Shukla, Lata I., Adhikary, Amitava, Pazdro, Robert, Becker, David, Sevilla, Michael D.

Electron spin resonance (ESR) studies of radicals formed by radiation-induced multiple one-electron oxidations of guanine moieties in DNA are reported in this work. Annealing of gamma-irradiated DNA...

UVA-visible photo-excitation of guanine radical cations produces sugar radicals in DNA and model structures

Adhikary, Amitava, Malkhasian, Aramice Y. S., Collins, Sean, Koppen, Jessica, Becker, David, Sevilla, Michael D.

This work presents evidence that photo-excitation of guanine radical cations results in high yields of deoxyribose sugar radicals in DNA, guanine deoxyribonucleosides and deoxyribonucleotides. In...

C5′- and C3′-sugar radicals produced via photo-excitation of one-electron oxidized adenine in 2′-deoxyadenosine and its derivatives

Adhikary, Amitava, Becker, David, Collins, Sean, Koppen, Jessica, Sevilla, Michael D.

We report that photo-excitation of one-electron-oxidized adenine [A(-H)•] in dAdo and its 2′-deoxyribonucleotides leads to formation of deoxyribose sugar radicals in remarkably high yields....

Involvement of estrogen receptor β in terminal differentiation of mammary gland epithelium

Förster, Carola, Mäkela, Sari, Wärri, Anni, Kietz, Silke, Becker, David, Hultenby, Kjell, ...

The mammary glands of prepubertal estrogen receptor (ER)β−/− mice are morphologically indistinguishable from those of WT littermates. It appears that, although ERβ is expressed in the mouse...

Formation of 8-oxo-7,8-dihydroguanine-radicals in γ-irradiated DNA by multiple one-electron oxidations

Shukla, Lata I., Adhikary, Amitava, Pazdro, Robert, Becker, David, Sevilla, Michael D.

Electron spin resonance (ESR) studies of radicals formed by radiation-induced multiple one-electron oxidations of guanine moieties in DNA are reported in this work. Annealing of gamma-irradiated DNA...

UVA-visible photo-excitation of guanine radical cations produces sugar radicals in DNA and model structures

Adhikary, Amitava, Malkhasian, Aramice Y. S., Collins, Sean, Koppen, Jessica, Becker, David, Sevilla, Michael D.

This work presents evidence that photo-excitation of guanine radical cations results in high yields of deoxyribose sugar radicals in DNA, guanine deoxyribonucleosides and deoxyribonucleotides. In...

C5′- and C3′-sugar radicals produced via photo-excitation of one-electron oxidized adenine in 2′-deoxyadenosine and its derivatives

Adhikary, Amitava, Becker, David, Collins, Sean, Koppen, Jessica, Sevilla, Michael D.

We report that photo-excitation of one-electron-oxidized adenine [A(-H)•] in dAdo and its 2′-deoxyribonucleotides leads to formation of deoxyribose sugar radicals in remarkably high yields....

Detecting Medicare Abuse

David Becker, Daniel Kessler, Mark McClellan

This paper identifies which types of patients and hospitals have abusive Medicare billings that are responsive to law enforcement. For a 20 percent random sample of elderly Medicare beneficiaries...

Framgångsdrivare hos företagsekonomiska institutioner - en komparativ studie

Becker, David, Edberg, Per, Niska, Andreas

Syftet med denna studie är att undersöka och skapa förståelse för vilka framgångsdrivarna är för företagsekonomiska institutioner.För att kunna uppfylla syftet har vi tagit fram...

Framgångsdrivare hos företagsekonomiska institutioner - en komparativ studie

Becker, David, Edberg, Per, Niska, Andreas

Syftet med denna studie är att undersöka och skapa förståelse för vilka framgångsdrivarna är för företagsekonomiska institutioner.För att kunna uppfylla syftet har vi tagit fram...