Did Prepayments Sustain the Subprime Market? (2009)
This paper demonstrates that the reason for widespread default of mortgages in the subprime market was a sudden reversal in the house price appreciation of the early 2000's. Using loan-level data on...
Did Prepayments Sustain the Subprime Market? (2009)
This paper demonstrates that the reason for widespread default of mortgages in the subprime market was a sudden reversal in the house price appreciation of the early 2000's. Using loan-level data on...
J. Jaeger, R. Sengupta, W. L. Ruzzo, J. Jaeger, R. Sengupta
In this paper we derive a method for evaluating and improving techniques for selecting informative genes from microarray data. Genes of interest are typically selected by ranking genes according to a...
Inpatient physiotherapy significantly reduces fatigue in ankylosing spondylitis patients (2008)
Pomeroy, E, Sengupta, R, Mogg, R, Richardson, J, Gay, L, Stone, MA
Stone, M. A., Pomeroy, E., Keat, A., Sengupta, R., Hickey, S., Dieppe, P., ...
Objectives. Many AS patients report periods of perceived higher disease activity (flares). This pilot study aims to document disease activity patterns reported by AS patients and examine associations...
Interim Progress Report: Intelligent Control Architectures for Unmanned Air Vehicles (2007)
Sastry Godbole Malik, S. S. Sastry, D. N. Godbole, J. Malik, R. Sengupta, Omid Shakernia
This document is a report on the work conducted on ONR grant number N00014-97-1-0946 from July, 1, 1997 to date.
Framework for the Analysis of Crash Avoidance Systems (2007)
D. N. Godbole, N. Kourjanskaia, J. B. Michael, J. Misener, R. Sengupta
We have developed a five-layer model, tool, and task hierarchy called Hierarchical Assessment and Requirements Tools for Crash Avoidance Systems (HARTCAS). The hierarchy is discussed in general terms...
Stone, MA, Keat, A, Pomeroy, E, Hickey, S, Sengupta, R, Mogg, R, ...
Stone, MA, Keat, A, Hickey, S, Pomeroy, E, Mogg, R, Sengupta, R, ...
The assessment of ankylosing spondylitis in clinical practice (2007)
Ankylosing Spondylitis (AS) is a chronic inflammatory arthritis that predominantly affects the axial skeleton in adolescent patients causing spinal pain and stiffness. There is a marked delay, on...
Sengupta, R, Hunt, L, Richardson, J, Gay, L, Pomeroy, E, Mogg, R, ...
WTRP - Wireless token ring protocol (2004)
Ergen, Dr. Mustafa, Lee, D, Sengupta, R, Varaiya, P
The wireless token ring protocol (WTRP) is a novel medium access control (MAC) protocol for wireless local area networks (WLANs). In contrast with IEEE 802.11 networks, WTRP guarantees quality of...
Software fault tolerance for low-to-moderate radiation environments (2004)
Katz, D., Sengupta, R., Offenberg, J., Fixsen, D., Springer, P., Stockman, H., ...
Enhanced AHS Safety Through the Integration of Vehicle Control and Communication (2003)
Hedrick, J. K., Sengupta, R., Xu, Q., Kang, Y., Lee, C.
We comparatively assess the influence of adaptive cruise control (ACC) and cooperative adaptive cruise control (CACC) systems on highway traffic behaviors. The primary goal is to study the design and...
Enhanced AHS Safety Through the Integration of Vehicle Control and Communication (2003)
Hedrick, J. K., Sengupta, R., Xu, Q., Kang, Y., Lee, C.
In fiscal year 2002/2003 we finished the study of the effect of vehicle-vehicle/vehicle-roadside communication on the performance of adaptive cruise control (ACC) systems. Two simulation studies were...
Improved gene selection for classification of microarrays (2003)
Jäger,J., Sengupta,R., Ruzzo,W. L.
In this paper we derive a method for evaluating and improving techniques for selecting informative genes from microarray data. Genes of interest are typically selected by ranking genes according to a...
Improved gene selection for classification of microarrays (2003)
Jäger, J., Sengupta, R., Ruzzo, W. L.
In this paper we derive a method for evaluating and improving techniques for selecting informative genes from microarray data. Genes of interest are typically selected by ranking genes according to a...
Improved Gene Selection for Classification of Microarrays (2003)
In this paper we derive a method for evaluating and improving techniques for selecting informative genes from microarray data. Genes of interest are typically selected by ranking genes according to a...
Improved Gene Selection for Classification of Microarrays (2003)
In this paper we derive a method for evaluating and improving techniques for selecting informative genes from microarray data. Genes of interest are typically selected by ranking genes according to a...
Integration of Vehicle Control and Communication Annual Report PATH Task Order 4210 (2003)
J. K. Hedrick, R. Sengupta, Q. Xu, Y. Kang, C. Lee, J. K. Hedrick, ...
United States Department of Transportation, Federal Highway Administration. The contents of this report reflect the views of the authors who are responsible for the facts and the accuracy of the data...
Improved Gene Selection for Classification of Microarrays (2003)
J. Jaeger, R. Sengupta, W. L. Ruzzo
In this paper we derive a method for evaluating and improving techniques for selecting informative genes from microarray data. Genes of interest are typically selected by ranking genes according to a...
Improved Gene Selection for Classification of Microarrays (2003)
In this paper we derive a method for evaluating and improving techniques for selecting informative genes from microarray data. Genes of interest are typically selected by ranking genes according to a...
Acanthosis nigricans: A dermatologic marker of metabolic disease (2002)
Varthakavi, P, Waingankar, A, Patel, K, Wadhwa, S, Khopkar, U, Sengupta, R, ...
Software Fault Tolerance for Low-to-Moderate Radiation Environments (2001)
R. Sengupta, J. D. Offenberg, D. J. Fixsen, D. S. Katz, H. S. Stockman, ...
Abstract. The primary intention of NASA’s Remote Exploration and Exploration (REE) project is to use commercial off-the-shelf, scalable, low-power, fault-tolerant, high-performance computation in...
Validation of Up-the-Ramp Sampling with Cosmic Ray Rejection on IR Detectors (2000)
Offenberg, J. D., Fixsen, D. J., Rauscher, B. J., Forrest, W. J., Hanisch, R. J., Mather, J. C., ...
We examine cosmic ray rejection methodology on data collected from InSb and Si:As detectors. The application of an Up-the-Ramp sampling technique with cosmic ray identification and mitigation is the...
Cosmic Ray Rejection and Readout Efficiency for Large-Area Arrays (2000)
Fixsen, D. J., Offenberg, J. D., Hanisch, R. J., Mather, J. C., Nieto-Santisteban, M. A., Sengupta, R., ...
We present an algorithm to optimally process uniformly sampled array image data obtained with a nondestructive readout. The algorithm discards full wells, removes cosmic ray (particle) hits and other...
Multi-Read Out Data Simulator (2000)
Offenberg, J. D., Hanisch, R. J., Fixsen, D. J., Stockman, H. S., Nieto-Santisteban, M. A., Sengupta, R., ...
We present a data simulation package designed to create a series of simulated data samples for a detector with non-destructive sampling capability. The original intent of this software was to provide...
Cosmic Ray Rejection and Image Processing Aboard The Next Generation Space Telescope (1998)
Stockman, H. S., Fixsen, D., Hanisch, R., Mather, J. C., Nieto-Santisteban, M., Offenberg, J. D., ...
The NASA Yardstick design for the Integrated Science Instrument Module (ISIM) utilizes 64 1k x 1k InSb imagers. Since multiple readouts per image are required to remove cosmic ray events and to...
Present status of coastal pollution in India and future strategies (1996)
Satyanarayana, D., SenGupta, R.
One of the important aspects of environmental management, particularly of India's Exclusive Economic Zone, involves the preservation of its quality. Because of rapid economic development, the stress...
Naqvi, S.W.A., Shailaja, M.S., DileepKumar, M., Sengupta, R.
Depth profiles of activity of the respirtory Electron Transport System (ETS) have been generated at several locations in the northern Indian Ocean. The results reveal much lower ETS activities in...
A Decentralized Scheme for Real-Time Optimization of Traffic Signals (1996)
I. Porche, M. Sampath, R. Sengupta, S. Lafortune
A real time, highly decentralized, adaptive traffic signal optimization method, ALLONS-D, based on the Rolling Horizon Dynamic Programming technique, is presented in this paper. We describe the basic...
The behaviour of aluminium in waters of the Mandovi estuary, west coast of India (1995)
The concentration of dissolved Al in both the freshwater (approx 0.08 - 0.23 mu M) and seawater (less than or equal to 0.07 mu M) endmembers of the Mandovi estuary is low, the former being always...
SenGupta, R., Fondekar, S.P., Shailaja, M.S., Sankaranarayanan, V.N.
Observations on oil slicks, tar residues and dissolved petroleum hydrocarbons (DPH) shortly after the oil spill resulting from the tanker accident in January 1993 showed negligible impact on the...
State of oil pollution in the northern Arabian Sea after the 1991 Gulf oil spill (1993)
Sengupta, R., Fondekar, S.P., Alagarsamy, R.
Following the enormous oil spills resulting from the 1990-91 military conflict in the Gulf, fears were expressed concerning dissipation of oil from the Gulf into the Arabian Sea and Indian Ocean. To...
Carbon dioxide and nitrous oxide in the Arabian Sea (1993)
Naqvi, S.W.A., Sengupta, R., DileepKumar, M.
This review concentrates on some aspects of biogeochemical cycling of carbon and nitrogen in the Arabian Sea with emphasis on the atmospheric fluxes of CO sub(2) and N sub(2)O. The Arabian Sea...
On chlorinated hydrocarbons in the Indian Ocean (1992)
The data available on the distribution of organochlorine compounds such as DDT and its metabolites, aldrin, dieldrin, endrin, isomers of HCH and the PCBs in the sediments, water, zooplankton, fish...
Evaluation of toxic trace metals Cd and Pb in Arabian Sea waters (1992)
Sanzgiri, S., Mesquita, A., Kureishy, T.W., SenGupta, R.
An attempt has been made to present a picture of the distribution of toxic trace elements Cd and Pb in the Northern Arabian Sea by applying an improved analytical technique for the detection of...
Some aspects of the nitrogen cycling in the Arabian Sea (1992)
Naqvi, S.W.A., Noronha, R.J., Shailaja, M.S., Somasundar, K., SenGupta, R.
Extensive observations made in the Arabian Sea establish it as one of the largest oceanic reducing sites accounting for approximately 1/3 of the global water column denitrification. Evidence for...
Inputs from Indian rivers to the ocean: A synthesis (1992)
DileepKumar, M., George, M.D., SenGupta, R.
Indian rivers contribute about 4% of the global annual discharge, of which the major rivers contribute 126 x 10 sup(10) m sup(3) y/1 to the Bay of Bengal which is approximately four times that to the...
History of oceanography of the Indian Ocean (1992)
This paper highlights history of the oceanography of the Indian Ocean. Oceanographic activities during Ancient period, Medieval period, British period, Post-Independence period are briefly discussed....
An attempt has been made to determine the concentration of different organochlorine pesticides in the seawater off the central West Coast of India using an in-situ-sampler. The Seastar in-situ...
Pesticide residues in sediments from the west coast of India (1991)
An average of 55,000 t of pesticides (including or organochlorine compounds) are used every year in India for agricultural purposes. The cumulative effects of these pesticides on the coastal...
SenGupta, R., Sarkar, A., Kureishy, T.W.
A study on the biodegradation of methyl isocyanate (MIC) and its anticholinesterase activities in different tissues of various species of fishes from the lakes of Bhopal was carried out over a period...
A toxin from Holothuria leucospilota (Brandt) (1991)
Jayasree, V., SenGupta, R., Bhavanarayana, P.V.
Holothurians are marine echinoderms. Despite their limited mobility and absence of a protective hard shell, they are seldom preyed upon. Thus, one would expect them to have some type of chemical...
Carbon and nitrogen budgets of the Arabian Sea (1990)
Somasundar, K., Rajendran, A., DileepKumar, M., SenGupta, R.
This report provides a review of various hypotheses put forward so far as to the role of the oceans in controlling the glacial-interglacial climatic cycles through controls on the atmospheric carbon...