G. Biswas, P. Bonasso, S. Abdelwahed, D. Kortenkamp, J. Wu, S. Bell
Copyright © 2005 SAE International This paper describes a series of life support control experiments at NASA Johnson Space Center and at Vanderbilt University. These experiments involved two...
Cytomegalovirus oesophagitis in a patient with non-hodgkin's lymphoma (2008)
Hingmire, S.S., Biswas, G., Bakshi, A., Desai, S., Dighe, S., Nair, R., ...
Cytomegalovirus (CMV) infection is frequent in immunocompromised patients, especially in AIDS, organ transplantation and rarely in Hodgkin′s disease and Non-Hodgkin′s lymphoma (NHL). We present a...
Biswas, G., Khadwal, A., Arora, B., Bhagwat, R., Banavali, S.D., Nair, C.N., ...
Background : Langerhans cell histiocytosis (LCH) is a rare disorder characterized by clonal proliferation of immature and abnormal bone marrow derived langerhans cells. Treatment is usually...
ABSTRACT Intelligent User Interface Design for Teachable Agent Systems (2008)
J. Davis, K. Leelawong, K. Belynne, B. Bodenheimer, G. Biswas, N. Vye, ...
This paper describes the interface components for a system called Betty’s Brain, an intelligent agent we have developed for studying the learning by teaching paradigm. Our previous studies have...
ABSTRACT Intelligent User Interface Design for Teachable Agent Systems (2008)
J. Davis, K. Leelawong, K. Belynne, B. Bodenheimer, G. Biswas, N. Vye, ...
This paper describes the interface components for a system called Betty’s Brain, an intelligent agent we have developed for studying the learning by teaching paradigm. Our previous studies have...
N. Shankaran, J. Balasubramanian, D. Schmidt, G. Biswas
Middleware is increasingly used to develop and deploy components in large-scale distributed real-time and embedded (DRE) systems. A key challenge in component deployment for DRE systems is devising...
Cytomegalovirus oesophagitis in a patient with non-hodgkin's lymphoma (2008)
Hingmire, S, Biswas, G, Bakshi, A, Desai, S, Dighe, S, Nair, R, ...
J. Davis, K. Leelawong, K. Belynne, G. Biswas, N. Vye, R. Bodenheimer, ...
Betty’s Brain [1] is a learning-by-teaching environment where students “teach ” Betty by constructing a concept map that models relations between domain concepts. The relations can be causal,...
Biswas, G, Khadwal, A, Arora, B, Bhagwat, R, Banavali, S, Nair, C, ...
Metachronous gastric diffuse large B-cell lymphoma and adenocarcinoma (2006)
Prabhash, K, Biswas, G, Nair, R, Pandey, D, Maru, D, Mahajan, A, ...
Imatinib-induced nail hyperpigmentation in chronic myeloid leukemia (2006)
Prabhash, K, Biswas, G, Prasad, N, Karant, N, Sastry, P, Parikh, P
Brain metastasis-Evidence based management (2006)
Biswas, G, Bhagwat, R, Khurana, R, Menon, H, Prasad, N, Parikh, P
Karisiddaiah, S.M., Borole, D.V., Rao, B.R., Paropkari, A.L., Joao, H.M., Muralidhar, K., ...
Sediment cores (~5 m length) from ten stations collected in the water depths of 2665-3210 m in the eastern Arabian Sea were studied for pore water sulfate (SO42-), chloride (Cl-) and...
Ewing's sarcoma with cutaneous metastasis - a rare entity: Report of three cases (2005)
Biswas, G, Khadwal, A, Kulkarni, P, Bakshi, A, Nair, C, Kurkure, P, ...
Scleroderma and dermographism in a case of carcinoma ovary (2005)
Vottery, R, Biswas, G, Deshmukh, C, Gupta, S, Nair, R, Parikh, P
Biswas, G, Laskar, S, Banavali, S, Gujral, S, Kurkure, P, Muckaden, M, ...
Metastatic gastric adenocarcinoma (2005)
Bhagwat, R, Biswas, G, Khadwal, A, Pai, S, Banavali, S, Parikh, P
N. Shankaran, J. Balasubramanian, D. Schmidt, G. Biswas, P. Lardieri, E. Mulholl, ...
This paper describes the Resource Allocation and Control Engine (RACE) that integrates multiple resource management algorithms for (re)deploying and managing performance of application components in...
Pregnancy outcome of two patients treated with imatinib (2005)
Prabhash, K., Biswas, G., Bakshi, A., Prasad, N., Menon, H., ...
Retro-peritoneal plasmacytoma: A case report and review of literature (2004)
Sharma, LM, Biswas, G, Rai, SS, Nair, R, Gupta, S, Parikh, PM
Retro-peritoneal plasmacytoma: A case report and review of literature (2004)
Sharma, Lalit M., Biswas, G., Rai, Sanjay S., Nair, Reena, Gupta, Sudeep, Parikh, Purvish M.
Solitary Extramedullary Plasmacytoma (EMP) is an uncommon neoplasm. When diagnosed, head and neck region is its most likely location. Rarely, it may occur in the retro-peritoneum. We report a 44year...
Retro-peritoneal plasmacytoma: A case report and review of literature (2004)
Sharma, Lalit M., Biswas, G., Rai, Sanjay S., Nair, Reena, Gupta, Sudeep, Parikh, Purvish M.
Solitary Extramedullary Plasmacytoma (EMP) is an uncommon neoplasm. When diagnosed, head and neck region is its most likely location. Rarely, it may occur in the retro-peritoneum. We report a 44year...
Retro-peritoneal plasmacytoma: A case report and review of literature (2004)
Sharma, Lalit M., Biswas, G., Rai, Sanjay S., Nair, Reena, Gupta, Sudeep, Parikh, Purvish M.
Solitary Extramedullary Plasmacytoma (EMP) is an uncommon neoplasm. When diagnosed, head and neck region is its most likely location. Rarely, it may occur in the retro-peritoneum. We report a 44year...
Qualitative Modeling and Cognitive Science (2004)
Biswas, G., Bredeweg, B., Ferguson, R.W., Struss, P., Sherin, B.
S. Abdelwahed, J. Wu, G. Biswas, J. Ramirez, E. Manders
In this paper we present the design and implementation of a controller scheme for efficient resource management in Advanced Life Support Systems. In the proposed approach, a switching hybrid system...
Intelligent User Interface Design for Teachable Agent Systems (2003)
J. Davis, K. Leelawong, K. Belynne, G. Biswas, N. Vye, R. Bodenheimer, ...
Betty’s Brain [1] is a learning-byteaching environment where students “teach ” Betty by constructing a concept map that models relations between domain concepts. The relations can be causal,...
Intelligent User Interface Design for Teachable Agent Systems (2003)
J. Davis, K. Leelawong, K. Belynne, B. Bodenheimer, G. Biswas, N. Vye, ...
This paper describes the interface components for a system called Betty's Brain, an intelligent agent we have developed for studying the learning by teaching paradigm. Our previous studies have...
"Matryoshka: A HMM Based Temporal Data Clustering Methodology for Modeling System Dynamics" (2002)
Li, C., Biswas, G., Dale, Michael Bodley, Dale, Patricia Ellen
Yes
"Matryoshka: A HMM Based Temporal Data Clustering Methodology for Modeling System Dynamics" (2002)
Li, C., Biswas, G., Dale, Michael Bodley, Dale, Patricia Ellen
Yes
"Matryoshka: A HMM Based Temporal Data Clustering Methodology for Modeling System Dynamics" (2002)
Li, C., Biswas, G., Dale, Michael Bodley, Dale, Patricia Ellen
"Matryoshka: A HMM Based Temporal Data Clustering Methodology for Modeling System Dynamics" (2002)
Li, C., Biswas, G., Dale, Michael Bodley, Dale, Patricia Ellen
This paper discusses a temporal data clustering system that is based on the Hidden Markov Model(HMM) methodology. The proposed methodology improves upon existing HMM clustering methods in two ways....
Bond Graph Modeling Procedures for Fault Detection and Isolation of Complex Flow Processes (2001)
Feenstra, P.J., Mosterman, P.J., Biswas, G., Breedveld, P.C.
Bond Graph Modeling Procedures for Fault Detection and Isolation of Complex Flow Processes (2001)
Feenstra, P.J., Mosterman, P.J., Biswas, G., Breedveld, P.C.
Many models for fault detection and isolation (FDI) will contain multi-port energy storage and flow-dependencies due to convection. Converting these models into qualitative ones leads to ambiguities...
Modeling and instrumentation for fault detection and isolation of a cooling system (2000)
Feenstra, P.J., Mosterman, P.J., Biswas, G., Barnett, R.J.
Functional redundancy techniques for fault detection and isolation (FDI) in dynamic systems requires close interaction between system instrumentation, modeling and analysis. Effective FDI requires...
Towards Procedures for Systematically Deriving Hybrid Models of Complex Systems (2000)
In many cases, complex system behaviors are naturally modeled as nonlinear differential equations. However, these equations are often hard to analyze because of ``stiffness'' in their numerical...
A comprehensive methodology for building hybrid models of physical systems (2000)
This paper describes a comprehensive and systematic framework for building mixed continuous/discrete, i.e., hybrid physical system models. Hybrid models are a natural representation for embedded...
Qualitative Dynamic Behavior of Physical System Models with Algebraic Loops (2000)
Mosterman, P.J., Manders, E. J., Biswas, G.
TRANSCEND, a system for monitoring and diagnosis of abrupt faults in complex dynamic systems, relies on system models to predict dynamic behavior in response to abrupt faults. The use of qualitative...
Manders, E.J., Narasimhan, S., Biswas, G., Mosterman, P.
The TRANSCEND system for fault detection and isolation in continuous systems uses qualitative reasoning methods to analyze transients caused by abrupt faults. Qualitative transient analysis avoids...
Signal Interpretation for Monitoring and Diagnosis, A Cooling System Testbed (2000)
Manders, E.J., Biswas, G., Mosterman, P.J., Barford, L.A., Barnett, R. J.
This paper discusses our method for monitoring and diagnosis of dynamic systems. A key aspect in our approach is the interaction between a qualitative diagnosis engine that requires symbolic input...
Modeling and Instrumentation for Fault Detection and Isolation of a Cooling System (2000)
Feenstra, P.J., Manders, E.J., Mosterman, P.J., Biswas, G., Barnett, J.
Functional redundancy techniques for fault detection and isolation (FDI) in dynamic systems requires close interaction between system instrumentation, modeling and analysis. Effective FDI requires...
Modeling and instrumentation for fault detection and isolation of a cooling system (2000)
Feenstra, P.J., Mosterman, P.J., Biswas, G., Barnett, R.J.
Functional redundancy techniques for fault detection and isolation (FDI) in dynamic systems requires close interaction between system instrumentation, modeling and analysis. Effective FDI requires...
Modeling and instrumentation for fault detection and isolation of a cooling system (2000)
Feenstra, P.J., Mosterman, P.J., Biswas, G., Barnett, R.J.
Functional redundancy techniques for fault detection and isolation (FDI) in dynamic systems requires close interaction between system instrumentation, modeling and analysis. Effective FDI requires...
Building Hybrid Observers for Complex Dynamic Systems Using Model Abstractions (1999)
Controllers for embedded dynamic systems have to deal with models that combine continuous behavior evolution with discrete mode transitions. These transitions may cause discontinuous changes in the...
Bond graphs are a powerful formalism for modeling the continuous dynamics of physical systems. To model fast continuous changes as discontinuities, hybrid bond graphs introduce an ideal switching...
Dynamic behavior of complex physical systems is often nonlinear and includes multiple temporal scales. For efficient model analysis, singular perturbation methods can be employed to decouple and...
Derivative Estimation for Diagnosis (1999)
Barford, L., Manders, E.J., Biswas, G., Mosterman, P.J., Ram, V., Barnett, J.
Signal to Symbol Transformation Techniques for Robust Diagnosis in TRANSCEND (1999)
Manders, E.J., Mosterman, P.J., Biswas, G.
TRANSCEND uses qualitative transient analysis methods for monitoring and diagnosis of dynamic systems to overcome complexity and convergence issues that arise in numerical processing, especially for...
Signal Interpretation for Monitoring and Diagnosis, a Cooling System Testbed (1999)
Manders, E.J., Biswas, G., Mosterman, P.J., Barford, L., Ram, V., Barnett, J.
This paper discusses our method for monitoring and diagnosis of dynamic systems. A key aspect in our approach is the interaction between a qualitative diagnosis engine that requires symbolic input...
Sliding Mode Model Semantics and Simulation for Hybrid Systems (1999)
Mosterman, P.J., Zhao, F., Biswas, G.
We describe model semantics and develop a simulation algorithm for characterizing a class of dynamic physical systems operating in the so-called sliding regimes. Complex continuous system behavior...
Hybrid Automata for Modeling Discontinuous State Vector Value Changes in Complex Systems (1999)
Hybrid system models combine continuous behavior evolution with discrete mode transitions. These transitions may cause discontinuous changes in the field that defines continuous system behavior and...
Building Hybrid Automata of Complex Physical Systems for Real-time Applications (1999)
Dynamic behavior of complex physical systems is often nonlinear and includes multiple temporal scales. Singular perturbation methods decouple the fast and slow behavior and by assuming that the fast...
Towards Diagnosing Hybrid Systems (1999)
S. Mcilraith, G. Biswas, D. Clancy, V. Gupta
This paper reports on the findings of an on-going project to investigate techniques to diagnose complex dynamic systems that are modeled as hybrid systems. In particular, we examine continuous...
Towards Diagnosing Hybrid Systems (1999)
Mcilraith Biswas, S. Mcilraith, G. Biswas, D. Clancy, V. Gupta
This paper reports on the findings of an on-going project to investigate techniques to diagnose complex dynamic systems that are modeled as hybrid systems. In particular, we examine continuous...
Modeling and Simulation Semantics for Hybrid Dynamic Physical Systems (1998)
This paper develops a mathematical framework for hybrid physical system models. Hybrid models of dynamic physical systems are characterized by time scale and parameter abstractions which lead to...
A hybrid modeling and verification paradigm for embedded control systems (1998)
Mosterman, P. J., Biswas, G., Sztipanovits, J.
Contemporary process control includes continuous and discrete components. At the lowest level, continuous PID controllers are used for actuation and control. At a higher level, supervisory control...
Manders, E. J., Ram, V. V., Barnett, J., Biswas, G., Mosterman, P.J.
The complexity of the new generation of physical systems combined with the growing demand for their reliability and safety, is now being met by automatic control and monitoring, and the use of...
An Ontology for Transitions in Physical Dynamic Systems (1998)
Mosterman, P.J., Zhao, F., Biswas, G.
Physical systems often exhibit complex nonlinear behaviors. To simplify behavioral analysis, we often introduce abstractions to hide details and more easily generate the dominant behaviors of a...
Simulation of Discontinuities in Physical System Models Based on Conservation Principles (1998)
Mosterman, P.J., Biswas, G., Otter, M.
Bond graphs are a powerful and elegant formalism for modeling the continuous dynamics of physical systems.Hybrid bond graphs augment traditional bond graphs by a variable causality switching element...
Narasimhan, S., Mosterman, P.J., Biswas, G.
Fault detection and isolation in dynamic physical systems based on analysis of transient system behavior involves monitoring for deviations and linking observed deviations to changes in system...
A Comprehensive Framework for Model Based Diagnosis (1998)
This paper reviews our work on monitoring, prediction, and fault isolation methods for complex dynamic systems affected by abrupt faults. The key to this work has been our ability to model the...
Model Semantics and Simulation of Time Scale Abstractions in Collision Models (1998)
Mosterman, P.J., Broenink, J.F., Biswas, G.
Effective design of models requires simplification of different components of the system. For example, interactions of the system under scrutiny with its environment are modeled as idealized sources...
Model Based Diagnosis of Dynamic Systems (1997)
Automated fault diagnosis in complex systems quickly detects and isolates component failures. To this end, system models can be effectively and efficiently exploited by mapping deviating measurement...
Measurement Selection and Diagnosability of Complex Physical Systems (1997)
Mosterman, P. J., Biswas, G., Sriram, N.
Functional redundancy techniques in diagnosis rely on models of a system to infer deviating system variables without directly measuring them. To avoid an overwhelming or excessive number of...
Principles for Modeling, Verification, and Simulation of Hybrid Dynamics Systems (1997)
Hybrid systems combine piecewise continuous behavior with discrete transitions. Hybrid dynamic systems extend this behavior with the notion of time to model the behavior of dynamic physical systems....
Model Semantics and Simulation for Hybrid Systems Operating in Sliding Regimes (1997)
Mosterman, P. J., Zhao, F., Biswas, G.
We describe a model semantics and a simulation algorithm for characterizing a class of dynamic physical systems operating in the so-called sliding regimes. Many continuous physical systems operate at...
P. J. Mosterman, G. Biswas, N. Sriram
Diagnosis of dynamic physical systems is complex and requires close interaction of monitoring, fault generation and re nement, and prediction. We have developed a methodology for model-based...
Intelligent Machine Architecture for Object-Based System Integration (1997)
R.T. Pack, M. Wilkes, G. Biswas, K. Kawamura
This paper presents a computational architecture that addresses the Grand Challenge problem of system integration [1] for intelligent control software. Robotics research has made many advances in...
Large Eddy Simulation in a Channel with Exit Boundary Conditions (1996)
H. Braun, T. Cziesla, H. Braun, G. Biswas, N. Ic. Mitrat
The influence of the exit boundary conditions (vanishing first derivative of the velocity com-ponents and constant pressure) on the large eddy simulation of the fully developed turbulent channel flow...
Large Eddy Simulation in a Channel with Exit Boundary Conditions (1996)
T. Cziesla, H. Braun, G. Biswas, N. K. Mitra
The influence of the exit boundary conditions (vanishing first derivative of the velocity components and constant pressure) on the large eddy simulation of the fully developed turbulent channel flow...
Evaluation of Contract Net-Based Heterarchical Scheduling for Flexible Manufacturing Systems (1995)
A. Saad, K. Kawamura, G. Biswas
This paper presents a heterarchical scheduling approach for flexible manufacturing systems. The approach adopts a multiagent cooperative problem solving paradigm by using a bidding mechanism based on...
A. Salama, K. Kawamura, G. Biswas, M.E Johnson, A. Salama
The next generation of intelligent and flexible manufacturing systems must be effective and efficient in manufacturing products in small batches, even down to lot sizes of one unit. In order to...
Conjugative plasmids in Neisseria gonorrhoeae.
Sox, T E, Mohammed, W, Blackman, E, Biswas, G, Sparling, P F
A conjugation system initially discovered in beta-lactamase-producing gonococci mobilized small non-selftransmissible R plasmids encoding beta-lactamase (penicillinase) production into other...
Chromosomal location of antibiotic resistance genes in Neisseria gonorrhoeae.
Biswas, G, Comer, S, Sparling, P F
Transformation with purified plasmid and chromosomal deoxyribonucleic acid from a clinical isolate of Neisseria gonorrhoeae showed that each of seven loci affecting drug resistance (penA, penB, ery,...
Hall, C, Mahadevan, L, Whatley, S, Biswas, G, Lim, L
Poly(A)+ RNA (polyadenylated RNA) isolated from membrane-bound and free polyribosomes was translated in reticulocyte lysates, and the products were analysed by two-dimensional gel electrophoresis....
Biswas, G, Adebanjo, O A, Freedman, B D, Anandatheerthavarada, H K, Vijayasarathy, C, Zaidi, M, ...
We have investigated the mechanism of mitochondrial-nuclear crosstalk during cellular stress in mouse C2C12 myocytes. For this purpose, we used cells with reduced mitochondrial DNA (mtDNA) contents...
Anandatheerthavarada, H K, Biswas, G, Mullick, J, Sepuri, N B, Otvos, L, Pain, D, ...
We have investigated mechanisms of mitochondrial targeting of the phenobarbital-inducible hepatic mitochondrial P450MT4, which cross-reacts with antibody to microsomal P4502B1. Results show that...
Conjugative plasmids in Neisseria gonorrhoeae.
Sox, T E, Mohammed, W, Blackman, E, Biswas, G, Sparling, P F
A conjugation system initially discovered in beta-lactamase-producing gonococci mobilized small non-selftransmissible R plasmids encoding beta-lactamase (penicillinase) production into other...
Chromosomal location of antibiotic resistance genes in Neisseria gonorrhoeae.
Biswas, G, Comer, S, Sparling, P F
Transformation with purified plasmid and chromosomal deoxyribonucleic acid from a clinical isolate of Neisseria gonorrhoeae showed that each of seven loci affecting drug resistance (penA, penB, ery,...
Hall, C, Mahadevan, L, Whatley, S, Biswas, G, Lim, L
Poly(A)+ RNA (polyadenylated RNA) isolated from membrane-bound and free polyribosomes was translated in reticulocyte lysates, and the products were analysed by two-dimensional gel electrophoresis....
Biswas, G, Adebanjo, O A, Freedman, B D, Anandatheerthavarada, H K, Vijayasarathy, C, Zaidi, M, ...
We have investigated the mechanism of mitochondrial-nuclear crosstalk during cellular stress in mouse C2C12 myocytes. For this purpose, we used cells with reduced mitochondrial DNA (mtDNA) contents...
Anandatheerthavarada, H K, Biswas, G, Mullick, J, Sepuri, N B, Otvos, L, Pain, D, ...
We have investigated mechanisms of mitochondrial targeting of the phenobarbital-inducible hepatic mitochondrial P450MT4, which cross-reacts with antibody to microsomal P4502B1. Results show that...