Swine flu (H1N1): pandemic or bioterrorism (2009)
Tandon, VR, Mahajan, A., Sharma, S., Gupta, S.K., Kumar, D., Sharma, Y.P.
Polarisation of Hydroxyapatite: Influence on Osteoblast Cell Proliferation (2009)
Kumar, D, Gittings, J P, Turner, Irene, Bowen, Christopher, Bastida-Hidalgo, A, Cartmel, S. H.
Wavelet Transform And Simplicity Based Heart Murmur Segmentation (2009)
D Kumar, P Carvalho, M Antunes, J Henriques, M Maldonado, R Schmidt, ...
This paper is aimed at the identification of the boundaries of murmur present in heart sound. Heart murmurs provide crucial diagnosis information for several heart diseases such as natural or...
Asberg, A, Kumar, D, Hartmann, A, Moussa, G, Jardine, A, ...
The effect of herpesvirus co-infections (HHV-6, HHV-7) on cytomegalovirus (CMV) disease and its response to therapy is unknown. We prospectively analyzed herpesvirus co-infections in transplant...
Singh, TU, Kumar, D, Tandan, SK
Objective: To investigate the effects of alcoholic extract of Allium sativum and Piper longum on the muscular activity of a parasitic amphistome, Gigantocotyle explanatum . Materials and...
Neuropsychology of prefrontal cortex (2008)
Siddiqui, SV, Chatterjee, U, Kumar, D, Siddiqui, A, Goyal, N
Cooperative and Non-Cooperative Control in IEEE 802.11 (2008)
Liang X. J, E. Altman, A. Kumar, D. Kumar, R. Venkatesh
Abstract. Numerous techniques for optimal performance of an IEEE 802.11 WLAN have been investigated. These techniques make use of either power control or PHY (physical layer) rate control or both to...
Components of Nutraceutical Value in Physalis minima (2008)
Misra, L.N., Lal, P., Kumar, D.
It is of utmost importance to feed the current world population by improving agricultural production with newer varieties of food crops, but what is still more important is to add nutrition into the...
Vanadium doped tin dioxide as a novel sulfur dioxide sensor (2008)
Das, S, Chakraborty, S, Parkash, O, Kumar, D, ...
Considering the short-term exposure limit of SO2 to be 5 ppm, we first time report that semiconductor sensors based on vanadium doped SnO2 can be used for SO2 leak detection because of their good...
J. Vila, R. Ortiz, M. Tárraga, R. Macià, A. García, D. Kumar, ...
This paper presents the development and applications of a software-based quality control system that monitors volcano activity in near-real time. On the premise that external seismic manifestations...
Accidental gamma dose measurement using commercial glasses (2008)
Narayan, Pradeep, Vaijapurkar, S. G., Senwar, K. R., Kumar, D., Bhatnagar, P. K.
Commercial glasses have been investigated for their application in accidental gamma dose measurement using Thermoluminescent (TL) techniques. Some of the glasses have been found to be sensitive...
Classification of voiceless speech using facial muscle activity and vision based techniques (2008)
Yau, W, Poosapadi Arjunan, S, Kumar, D
This paper presents a silent speech recognition technique based on facial muscle activity and video, without evaluating any voice signals. This research examines the use of facial surface...
Reliability of facial muscle activity to identify vowel utterance (2008)
Naik, G, Kumar, D, Poosapadi Arjunan, S
This paper evaluates the reliability of the use of muscle activation during unuttered (silent) vowel by an individual and reports the study of repeating of the experiments over several days. Surface...
Journal Of Computational, D. Kumar, J. L. Stollery, T. Suzuki, T. Adachi, R. Vilsmeier
methods: Analysis and numerical evidence. submitted, February (1998). 22 [238] R. Vilsmeier and D. Hanel. Computational aspects of flow simulations on 3-D, unstructured, adaptive grids. In...
The Maxwell-Boltzmannian approach to nuclear reaction rate theory is extended to cover Tsallis statistics (Tsallis, 1988) and more general cases of distribution functions. An analytical study of...
Thermohydraulic Modeling of Capillary Pumped Loop and Loop Heat Pipe (2007)
Adoni, Abhijit A, Ambirajan, Amrit, Jasvanth, VS, Kumar, D, Dutta, Pradip, Srinivasan, K
Capillary pumped loop (CPL) and loop heat pipe (LHP) are passive heat transport devices that are gaining importance as a part of the thermal control system of modern high power spacecraft. A...
Naik, G, Kumar, D, Palaniswami, M, Weghorn, H
Hand gesture identification has various human computer interaction (HCI) applications. This paper presents a method for subtle hand gesture identification from sEMG of the forearm by decomposing the...
Visual speech recognition and utterance segmentation based on mouth movement (2007)
This paper presents a vision-based approach to recognize speech without evaluating the acoustic signals. The proposed technique combines motion features and support vector machines (SVMs) to classify...
Poosapadi Arjunan, S, Kumar, D
This research reports the recognition of facial movements during unvoiced speech and the identification of hand gestures using surface Electromyogram (sEMG). The paper proposes two different methods...
Fractal theory based non-linear analysis of sEMG (2007)
Poosapadi Arjunan, S, Kumar, D
This research examines the use of fractal theory to study the properties of surface electromyogram (sEMG). The paper reports identifying a new fractal feature, maximum fractal length (MFL) that,...
Fractal based modelling and analysis of electromyography (EMG) to identify subtle actions (2007)
Poosapadi Arjunan, S, Kumar, D
The paper reports the use of fractal theory and fractal dimension to study the non-linear properties of surface electromyogram (sEMG) and to use these properties to classify subtle hand actions. The...
There is an urgent need for developing a robust technique that can identify small and subtle hand and other body movements with applications in health, rehabilitation and defence. Surface...
ICA based identification of sources in sEMG (2007)
The identification of number of active muscles during a complex action is useful information to identify the action, and to determine pathologies. Biosignals such as surface electromyogram are a...
A second locus for Aicardi-Goutieres syndrome at chromosome 13q14-21 (2006)
Highet, L J, Lacombe, D, Goizet, C, King, M D, Tacke, U, ...
BACKGROUND: Aicardi-Goutières syndrome (AGS) is an autosomal recessive, early onset encephalopathy characterised by calcification of the basal ganglia, chronic cerebrospinal fluid lymphocytosis, and...
Decoding the rice genome (2006)
Vij, S, Gupta, V, Kumar, D, Vydianathan, R, Raghuvanshi, S, Khurana, Poonam; U0051998, ...
Rice cultivation is one of the most important agricultural activities on earth, with nearly 90% of it being produced in Asia. It belongs to the family of crops that includes wheat, maize and barley,...
Woods, C. G., Stricker, S., Seemann, P., Stern, R., Cox, J., Sherridan, E., ...
Fuhrmann syndrome and the Al-Awadi/Raas-Rothschild/Schinzel phocomelia syndrome are considered to be distinct limb-malformation disorders characterized by various degrees of limb aplasia/hypoplasia...
The E-Motion System: Motion Capture and Movement-based Biofeedback Game (2006)
Kelly, D., Fitzgerald, D., Foody, J., Kumar, D., Ward, T., Caulfield, B., ...
This paper describes the development of a movement based training game aimed at teaching users an exercise program. This is achieved through analysing body posture as the player performs the exercise...
Kumar, D., Foody, J., Fitzgerald, D., Kelly, D., Ward, T., Markham, C., ...
Integration of whole body movements with virtual reality environments and computer games has many benefits for exercise training and rehabilitation. Such applications can serve as a virtual personal...
Integration of kinematic Analysis into Computer Games for Exercise (2006)
Fitzgerald, D., Foody, J., Kumar, D., Kelly, D., Ward, T., Markham, C., ...
This paper incorporates a review of current methods for integrating body movement or physical activity into computer games and a rationale for a new approach in this genre. Computer games are...
Wavelet classification of indoor environmental sound sources (2006)
McLachlan, N, Kumar, D, Becker, J
Computational auditory scene analysis (CASA) has been attracting growing interest since the publication of Bregman's text on human auditory scene analysis, and is expected to find many applications...
Changes in SEMG during the Long Duration Cycling Exercise (2006)
Singh, V, Kumar, D, Polus, B, Lo Giudice, S, Fraser, S
Identification of muscle fatigue using SEMG has always been both desirable and difficult for the engineering and medical community. Changes in SEMG are already established by authors when fatigue...
Unspoken Vowel Recognition Using Facial Electromyogram (2006)
Poosapadi Arjunan, S, Kumar, D, Yau, W, Weghorn, H
The paper aims to identify speech using the facial muscle activity without the audio signals. The paper presents an effective technique that measures the relative muscle activity of the articulatory...
Visual speech recognition using image moments and multiresolution wavelet (2006)
Yau, W, Kumar, D, Poosapadi Arjunan, S, Kumar, S
This paper describes a new technique for recognizing speech using visual speech information. The video data of the speaker’s mouth is represented using grayscale images named as motion...
Visual speech recognition method using translation, scale and rotation invariant features (2006)
Yau, W, Kumar, D, Poosapadi Arjunan, S
This paper reports on a visual speech recognition method that is invariant to translation, rotation and scale. Dynamic features representing the mouth motion is extracted from the video data by using...
A Prototype Sourceless Kinematic-Feedback Based Video Game for Movement Based Exercise (2006)
Foody, J., Kelly, D., Kumar, D., Fitzgerald, D., Ward, T., Caulfield, B., ...
This paper presents a prototype kinematic and audio feedback based video game, availing of a scalable motion capture acquisition system, based around a number of orientation sensors. The orientation...
Foody, J., Kelly, D., Kumar, D., Fitzgerald, D., Ward, T., Caulfield, B., ...
scalable motion capture system based on multiple orientation sensors, each consisting of tri-axis magnetic and gravitational field transducers, for use in kinematic studies; is presented. Outlined is...
Theoretical perspective on the structure and mechanism of cytochrome P450 enzymes (2005)
Shaik, S., Kumar, D., De Visser, S. P., Altun, A., Thiel, W.
Two states and two more in the mechanisms of hydroxylation and epoxidation by cytochrome P450 (2005)
The map-based sequence of the rice genome (2005)
MATSUMOTO, T, WU, JZ, KANAMORI, H, KATAYOSE, Y, FUJISAWA, M, NAMIKI, N, ...
Foody, J., Mathews, F., Kumar, D., Markham, C., Ward, T., Caulfield, B.
An unobtrusive tri-axis magnetic and gravitational field transducer for use in kinematic tracking is presented. Outlined is a novel approach for using such a sensor i.e. providing a Universal Serial...
Visual hand gestures classification using wavelet transform and moment based features (2005)
This paper presents a novel technique for classifying human hand gestures based on stationary wavelet transform (SWT) and classification based on geometrical based moments and compares the results...
Suryanarayanan, P, Kumar, D, Burton, P
Electrodermal activity is extensively used for measuring human emotions. Validity and reliability have been questioned by some researchers. This paper reports on highly controlled experiments to...
Endurance training of trained athletes: An electromyogram study (2005)
Jemma, J, Hawley, J, Kumar, D, Singh, V, Cosic, I
Little is known about the mechanism that improves the capabilities of athletes by high, intensity interval training (HIT). This study was conducted to determine the neurophysiological changes due to...
Decomposition of evoked potentials using peak detection and the discrete wavelet transform (2005)
McCooey, C, Kumar, D, Cosic, I
A new method of viewing evoked potential data is described. This method, called the peak detection method, is based on singularity detection using the discrete wavelet transform. The peaks and...
Strategies to identify changes in SEMG due to muscle fatigue during cycling (2005)
Kumar, D, Singh, V, Cosic, I, Giudice, S, Hawley, J
Detection, quantification and analysis of muscle fatigue is crucial in occupational/rehabilitation and sporting settings. Sports organizations such as Australian Institute of Sports (AIS) currently...
The psychological and physiological effects of light and colour on space users (2005)
Abbas, N, Kumar, D, McLachlan, N
The impact of colour and light conditions on our emotional and physical health and wellbeing is gaining greater importance in our urban societies. While large resources are allocated for well...
Limitations of ICA for artefact removal (2005)
Djuwari, D, Kumar, D, Palaniswami, M, Pota, H
This paper reports analysis of the limitations of using independent component analysis (ICA) for biosignal analysis especially artefact removal. The possible difficulty is that there are limited...
Malviya, V., Singh, R., Kumar, D., Pathak, U., Kumar, P., Jaiswal, D. K., ...
OBJECTIVE: To study the cardio-respiratory effects of DRDE-07, a new prophylactic agent for sulphur mustard. MATERIAL AND METHODS: The effect of DRDE-07 was studied in anesthetized male rats...
Structural and functional analysis of rice genome (2004)
Tyagi, AK, Khurana, JP, Khurana, Poonam; U0051998, Raghuvanshi, S, Gaur, A, Kapur, A, ...
Rice is an excellent system for plant genomics as it represents a modest size genome of 430 Mb. It feeds more than half the population of the world. Draft sequences of the rice genome, derived by...
Comparison Of IREA TRS 398, TRS 381 And AAPM TG 51 protocols For High Energy Electron Beams (2004)
Saju, S, Jamema, SV, Kumar, D, Narayanan, SS, Kihikar, RA, Despande, DD
Abdul-Latif, A, Cosic, I, Kumar, D, Polus, B, Pah, N, Djuwari, D
It is known that movements of the right side of the body are controlled by the left motor cortex of the brain. The aim of this study is to evaluate the contribution of right motor cortex of the brain...
This paper reports a novel technique to classify short duration articulated object motion in video data. The motion is represented by a spatio-temporal template (STT), a view based approach, which...
EMG based voice recognition (2004)
Kumar, S, Kumar, D, Alemu, M, Burry, M
Besides its clinical applications, various researchers have shown that EMG can be utilised in areas such as computer human interface and in developing intelligent prosthetic devices. The paper...
Abdul-Latif, A, Cosic, I, Kumar, D, Polus, B, Da Costa, C
The paper reports a research conducted to determine changes in the electrical activity of the contralateral motor cortex of the brain that drives the maximum voluntary contraction (MVC) of the right...
Electrocardiogram removal from electromyogram of the lumbar muscles (2004)
Ragupathy, S, Kumar, D, Polus, B, Kamei, K
Surface electromyogram (SEMG) of the lumbar back muscles is being used for determining posture disorders for people suffering from low back pain. But SEMG of the back has a strong electrocardiogram...
Strategies to identify muscle fatigue from SEMG during cycling (2004)
Singh, V, Kumar, D, Djuwari, D, Polus, B, Fraser, S, Hawley, J, ...
Detection, quantification and analysis of muscle fatigue are crucial in occupational/rehabilitation and sporting settings. Sports organizations, such as the Australian Institute of Sports (AIS),...
Sensitivity analysis of hand movement classification technique using motion templates (2004)
This paper presents the sensitivity analysis of a new technique for automated classification of human hand gestures based on Hu moments for robotics applications. It uses view-based approach for...
Classification of visual hand movements using multiresolution wavelet images (2004)
Kumar, S, Kumar, D, Sharma, A, McLachlan, N
This paper presents a novel technique for classifying human hand gestures based on stationary wavelet transform (SWT). It uses view-based approach for representation of hand actions, and artificial...
Kumar, D, McLachlan, N, Kumar, S, Sharma, A
This paper evaluates the efficacy of directional information of wavelet multi-resolution decomposition for histogram-based classification of human gestures represented by spatio-temporal templates....
Corticomuscular coherence after muscle fatigue (2004)
Abdul-Latif, A, Cosic, I, Kumar, D, Polus, B, Djuwari, D
Functional correlation between two separated neural systems can be studied using coherence function. Coherence function is a frequency domain measurement of similarity and phase lock between two...
Pereira, S.P., Bain, I.M., Kumar, D., Dowling, R.H.
Background: Inflammatory bowel disease is a risk factor for gall-bladder stones, but there is controversy about the composition of these stones and whether such patients develop lithogenic bile....
Active species of horseradish peroxidase (HRP) and cytochrome P450: Two electronic chameleons (2003)
De Visser, S. P., Shaik, S., Sharma, P. K., Kumar, D., Thiel, W.
Wavelet analysis of surface electromyography to determine muscle fatigue (2003)
Muscle fatigue is often a result of unhealthy work practice. It has been known for some time that there is a significant change in the spectrum of the electromyography (EMG) of the muscle when it is...
Management of middle hepatic vein outflow in right lobe liver transplantation (2002)
Soni, A.S., Gupta, S., Jain, P., Kumar, D., Singhal, D., Verma, V., ...
The optimal management of middle hepatic vein (MHV) drainage in a right lobe liver grafts remains controversial. Since MHV is the main outflow to the anterior segment (segments 5,8) in majority of...
Electrode distance and magnitude of SEMG (2002)
This paper reports experimental research undertaken to study the effect of variation of inter-electrode distance on the Surface Electromyogram (SEMG). The experiments were conducted on ten healthy...
A statistical approach to time frequency analysis of SEMG (2002)
Kumar, D, Bradley, A, Alemu, M
The aim of this study was to examine the influence of various external factors on the time-frequency (TF) content of surface electromyography (SEMG). The paper reports on a study of various factors...
Classification of EOG for human computer interface (2002)
This paper reports the efforts to determine the reliability and limitations of the use of the electro-ocular gram (EOG) for determining the angle of eye gaze for controlling a computer. Consideration...
Droughts and Dew Bean Productivity in Northwestern Arid Rajasthan, India (2001)
Narain, Pratap, Singh, R. S., Kumar, D.
Arid ecosystems constitute an important part of the world's dry climates. The Indian arid zone is characterized by a harsh and fragile system, which influences the productivity (both quantitative and...
Zero-bias conductance and energy gap measurements in LaNiO3-YBa2Cu3O7-x junctions (1998)
Kumar, D, Satyalakshmi, KM, Hegde, MS, Singh, Rajiv K, Apte, PR, Pinto, R, ...
Conductance measurements of junctions between a high- superconductor and a metallic oxide have been carried out along the a-b plane to examine the tunnel-junction spectra. For these measurements, in...
Interaction of Co, Mn, Mg and Al with d(GCCCATGGC) and d(CCGGGCCCGG): a spectroscopic study (1998)
Champion, CS, Kumar, D, Rajan, MT, Rao, Jagannatha KS, Viswamitra, MA
Spectroscopic study of the interactions of metal ions, Co, Mn, Mg and Al with d(GCCCATGGGC) and d(CCGGGCCCGG) revealed the following. Metal ions Mn, Al and Mg at the lowest concentrations enhanced...
Optical spectroscopy study of the role of Ag in laser ablated $YBa_2Cu_30_{7-8}$ thin films (1995)
Pinto, R, Apte, PR, Adhi, KP, Ogale, SB, Kumar, D, Hegde, MS
We have found evidence through optical spectroscopy that AgO is indeed generated in the laser plume during pulsed laser deposition of $YBa_2Cu_30_{7-8}$ (YBCO) thin films using Ag-doped YBCO targets....
A novel single-stranded DNA-specific endonuclease from pea chloroplasts (1995)
Kumar, D., Mukherjee, S., Reddy, M.K., Tewari, K.K.
A nuclease with novel activities has been isolated and purified to apparent homogeneity from pea chloroplasts. The enzyme prefers single-stranded (ss) circular DNA; its activity being 1500-fold...
On approximation and interpolation of entire functions with index-pair (p,q) (1994)
In this paper we have studied the Chebyshev and interpolation errors for functions in $\Cal C(E)$, the normed algebra of analytic functions on a compact set $E$ of positive transfinite diameter. The...
Kumar, D, Brunel Univ., Uxbridge (GB).
Thesis (Ph.D.)
A second locus for Aicardi‐Goutières syndrome at chromosome 13q14–21
Ali, M, Highet, L J, Lacombe, D, Goizet, C, King, M D, Tacke, U, ...
Molecular analysis of Salmonella paratyphi A from an outbreak in New Delhi, India.
Thong, K. L., Nair, S., Chaudhry, R., Seth, P., Kapil, A., Kumar, D., ...
Outbreak of suspected Clostridium butyricum botulism in India.
Chaudhry, R., Dhawan, B., Kumar, D., Bhatia, R., Gandhi, J. C., Patel, R. K., ...
Evans, C, Morrison, I, Heriot, A G, Bartlett, J B, Finlayson, C, Dalgleish, A G, ...
Colorectal cancer development is associated with a shift in host immunity with suppression of the cell-mediated immune system (CMI) and a predominance of humoral immunity (HI). Tumour progression is...
Heriot, A G, Marriott, J B, Cookson, S, Kumar, D, Dalgleish, A G
The aim of this study was to assess monocyte/macrophage function, as defined by lipopolysaccharide (LPS)-induced production of tumour necrosis factor (TNF)-α, interleukin (IL)-10 and interferon...