VIVEK TIWARI - Academia.edu (original) (raw)
Papers by VIVEK TIWARI
Proceedings Tenth International Conference on VLSI Design
... Some of the techniques have been used before for low power designs. Some others are new and i... more ... Some of the techniques have been used before for low power designs. Some others are new and it is demonstrated that significant power sav-ings are achieved with these as well. ... Sharad Malik Ricardo Gonzalez Dept. of Elect. Eng. Dept. of Elect. Eng. Princeton Univ. ...
Indian Journal of Physics, 2011
We discuss enhancement of multiplicities of hadrons at high transverse momentum due to multiple r... more We discuss enhancement of multiplicities of hadrons at high transverse momentum due to multiple reflections of quarks from collapsing Z(3) interfaces in the QGP produced in relativistic heavy-ion collisions. By modeling the dependence of effective mass of the quarks on the Polyakov loop order parameter, we evaluate the reflection coefficient of quarks from collapsing Z(3) interfaces. We use the effective potential proposed by Pisarski for the Polyakov loop to determine the profile of the Z(3) interfaces and calculate the reflection probability for quarks. We discuss the formation of a network of these Z(3) walls in relativistic heavy-ion collisions, in the QGP phase. We do a numerical simulation to calculate the modifications in the thermal transverse momentum spectra of the quarks/anti-quarks that results from a collapsing wall. We then use the recombination model to calculate the transverse momentum spectrum of final hadrons. Our results show enhancement of high P T hadrons, with the enhancement being stronger for heavier quarks. Further, we find that due to larger reflection coefficient for heavier quarks, the density of strange and charm quarks/anti-quarks increases inside the collapsing walls. This implies enhancement in the multiplicities of multi-strange and multi-charmed hadrons.
VLSI Design 2000. Wireless and Digital Imaging in the Millennium. Proceedings of 13th International Conference on VLSI Design
A methodology for reducing ground bounce in typical microprocessors and image processing architec... more A methodology for reducing ground bounce in typical microprocessors and image processing architectures has been described. As we approach Gigascale Integration, chip power consumption is becoming a critical system parameter. Deactivating idle units provides needed reductions in power consumption. However, it introduces inductive noise that can limit voltage scaling. The paper introduces an architectural approach for reducing this inductive noise by providing gradual activation and deactivation of functional blocks. This technique provides a 2x reduction in ground bounce current on a 16 bit ALU simulated in SPICE, while reducing simulated SPEC95 performance by less than 5% on a typical superscalar architecture. It has also been demonstrated to be effective for image processing SIMD architectures.
International Journal of Computer Applications, 2016
Networks-on-Chip (NoCs) are increasingly used in many-core architectures. Todays technology for A... more Networks-on-Chip (NoCs) are increasingly used in many-core architectures. Todays technology for ASICs supports Networks-on-Chip designs which can have 100 million gates on a single chip. In order to implement a competitive NoC architecture in FP-GAs, the area occupied by the network should be kept to a minimum. This helps in utilizing maximum area by the logic while maintaining the performance of the router network. Reducing area also reduces the power consumption. NOC's designs promise to offer considerable advantages over the traditional bus-based designs, in solving the numerous technological, economic and productivity problems associated with billion-transistor system-on-chip development. Here, a very flexible network is designed to propose a highly scalable and can be easily changed to accommodate various needs. This proposed work focused on implementation, analysis and verification of a five port routers. The building blocks of the router are input/output, multiplexer/demultiplexer, crossbar switch, buffer register and arbiters. The arbiters uses the round robin algorithm. The proposed NOC architecture is simulated in Xilinx ISE10.1 software. The source code is written in VHDL. This design is suitable for building networks with irregular topologies and with low latency and
Proceedings of 1994 IEEE Symposium on Low Power Electronics
Recent years have witnessed a rapid growth in research ac-tivity targeted at reducing energy cons... more Recent years have witnessed a rapid growth in research ac-tivity targeted at reducing energy consumption in micropro-cessor based systems. However, this research has by and large not recognized the potential energy savings achievable through optimization of software ...
EPJ Web of Conferences, 2013
Calculations reveal a new kind of non-adiabatic funnel that electronically enhances anti-correlat... more Calculations reveal a new kind of non-adiabatic funnel that electronically enhances anti-correlated vibrational wavepackets on the ground state. These wavepackets replicate all observed 2D signatures of photosynthetic energy transfer, including one not previously explained.
JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH, 2015
Long term exposure of aluminium in rodents has been shown to form amyloid oligomer, similar to Al... more Long term exposure of aluminium in rodents has been shown to form amyloid oligomer, similar to Alzheimer’s disease (AD) pathology. The present study evaluates the effects of chronic aluminium exposure on the cortical metabolism associated with glutamatergic and GABAergic neurons. The metabolism was studied using 1H-[13C]-NMR spectroscopy in conjunction with infusion of [1,6-13C2]glucose in mice treated with aluminium (i.p.). The chronic exposure of aluminium reduced TCA cycle and neurotransmitter cycle fluxes of the excitatory and inhibitory neurons.
Although aluminium has been linked to dementia type diseases including Alzheimer’s and Parkinson’... more Although aluminium has been linked to dementia type diseases including Alzheimer’s and Parkinson’s disease in molecular aspects, the cerebral energy metabolism associated with glutamatergic and GABAergic neurons with aluminium exposure remains elusive. In this study, we have investigated the glutamatergic and GABAergic metabolism in the cerebral cortex, hippocampus and striatum regions of mice under sub-acute exposure of aluminium chloride by using 1H-[13C]-NMR spectroscopy together with infusion of [1,6-13C2]glucose. Both, glutamatergic and GABAergic metabolism were found to be enhanced in aluminium chloride treated mice, which may be due to inflammatory response of aluminium toxicity in brain
EPJ Web of Conferences, 2013
Multiphoton excitation of hot carriers generates multiexcitons that are probed as a function of t... more Multiphoton excitation of hot carriers generates multiexcitons that are probed as a function of the absolute number of photons absorbed. Standard assumptions of Auger recombination analyses fail for an average of 2 excitations.
Changes in mitochondrial function at the cellular level is not fully understood under normal agin... more Changes in mitochondrial function at the cellular level is not fully understood under normal aging. Present study investigates glucose oxidation by glutamatergic and GABAergic neurons, and neurotransmitter cycling in adult and aged mice. Cortical glutamate level was found to be reduced in aged mice. The glucose oxidation by glutamatergic neurons was decreased in aged mice while GABAergic functions seems to be unperturbed.
Journal of Alzheimer's disease : JAD, 2012
Preclinical diagnosis of Alzheimer's disease is a major challenge. The present study evaluate... more Preclinical diagnosis of Alzheimer's disease is a major challenge. The present study evaluates glutamatergic and GABAergic neurotransmitter energetics at the age of 6 months in AβPPswe-PS1dE9 mouse model of Alzheimer's disease by using (1)H-[(13)C]-NMR spectroscopy together with infusion of [1,6-(13)C(2)]glucose. NMR analysis suggested no significant derangement in neurochemical profile in AβPPswe-PS1dE9 mice. However, decrease in labeling of glutamate-C4, GABA-C2 and glutamine-C4 at early infusion-time together with no change in labeling at steady state from [1,6-(13)C(2)]glucose indicates an impaired glutamatergic and GABAergic glucose oxidation and neurotransmitter cycle in AβPPswe-PS1dE9 mice. These findings may have implication in preclinical diagnosis of Alzheimer's disease.
BMJ case reports, Jan 17, 2014
Metastatic spread from non-head and neck tumours (H&N) to the paranasal and orbital region is ext... more Metastatic spread from non-head and neck tumours (H&N) to the paranasal and orbital region is extremely rare. We present a case of breast cancer metastasis to the left sphenoid wing, lateral wall left orbit, lateral wall left sphenoid sinus, medial and lateral wall left maxillary sinus and left pterygoid plates. We provide an exhaustive clinicoradiological imaging with a brief literature review.
South Asian Journal of Cancer, 2015
Introduction: To analyze the pattern of brain metastasis (BM), and to use intensity modulated rad... more Introduction: To analyze the pattern of brain metastasis (BM), and to use intensity modulated radiation therapy (IMRT) for target dose escalation in cases with ≤3 metastatic lesions (oligometastases). Materials and Methods: Thirty-two consecutive cases of BM treated during September 2009 to August 2012 were analyzed retrospectively. Results: The study comprised 13 males (40.62%) and 19 females (59.37%). Thirteen (40%) patients presented with disseminated intracranial metastases, while 19 (60%) had ≤3 foci. In 25 cases (78%), the primary was located either in the breast (14 cases) or lung (11 cases). The 13 patients with disseminated intracranial metastases received whole brain radiation therapy to a dose of 30 Gy/10-12 daily fractions (Group A) while the 19 cases with ≤3 lesions received an additional dose of 6-10 Gy to gross lesions using a simultaneous integrated boost (SIB) with IMRT thus receiving a total dose of 36-40 Gy/12-15 fractions (Group B). Overall survival (OS) for the ...
Bioinformation, 2007
HBNG is a graph theory based tool for visualization of hydrogen bond network in 2D. Digraphs gene... more HBNG is a graph theory based tool for visualization of hydrogen bond network in 2D. Digraphs generated by HBNG facilitate visualization of cooperativity and anticooperativity chains and rings in protein structures. HBNG takes hydrogen bonds list files (output from HBAT, HBEXPLORE, HBPLUS and STRIDE) as input and generates a DOT language script and constructs digraphs using freeware AT and T Graphviz tool. HBNG is useful in the enumeration of favorable topologies of hydrogen bond networks in protein structures and determining the effect of cooperativity and anticooperativity on protein stability and folding. HBNG can be applied to protein structure comparison and in the identification of secondary structural regions in protein structures.
ISSAC 2004 is a continuation of a well-established series of the international conferences for th... more ISSAC 2004 is a continuation of a well-established series of the international conferences for the presentation of the latest advances in the field of Symbolic and Algebraic Computation. The first meeting of the series (1966) was held in Washington, and sponsored by Association for Computing Machinery (ACM). Since then, the abbreviated name of the meeting has evolved from SYMSAM, SYMSAC, EUROSAM, EUROCAL to finally settle on the present name ISSAC. This 29th meeting will be at the University of Cantabria in Santander, Spain from July 4th to July 7th.The topics of the conference includes, but are not limited to: Algorithmic mathematics. Algebraic, symbolic and symbolic-numeric algorithms. Simplification, function manipulation, equations, summation, integration, ODE/PDE, linear algebra, number theory, group and geometric computing. Computer Science. Theoretical and practical problems in symbolic computation. Systems, problem solving environments, user interfaces, software, libraries, parallel/distributed computing and programming languages for symbolic computation, concrete analysis, benchmarking, theoretical and practical complexity of computer algebra algorithms, automatic differentiation, code generation, mathematical data structures and exchange protocols. Applications. Problem treatments using algebraic, symbolic or symbolic-numeric computation in an essential or a novel way. Engineering, economics and finance, physical and biological sciences, computer science, logic, mathematics, statistics, education. Following the tradition, ISSAC 2004 features invited talks, contributed papers, tutorials, poster sessions, and software exhibitions. This volume contains all the contributed papers to be presented at the meeting as well as the abstracts of the invited talks.A total of 131 papers were submitted, and each was distributed to members of the program committee and external reviewers. An average of 3 referee reports were obtained for each submission, and finally 43 papers were selected for presentation. As a consequence, we are convinced that the contributions in these proceedings represent excellent and wide, though not complete, spectra of areas spanning most of symbolic and algebraic computation. It is a pleasure to acknowledge the contributions of all these persons, as well as all researchers and educators who submitted papers for consideration, and all those who assisted in the selection process. Unfortunately, due to the time constraint of three days without parallel sessions, many interesting papers could not be accepted for presentation and inclusion in these proceedings.
RSC Advances, 2015
The role of different biological templates in determining the morphology and properties of SPIONs.
South Asian Journal of Cancer, 2012
A total of 51 cases of young females aged between 18-35 years were prospectively studied for the ... more A total of 51 cases of young females aged between 18-35 years were prospectively studied for the presentation in a Rural Charitable Cancer hospital in north India during the period August 2011 to April 2012. Breast related symptoms comprised 27 (52.94%) cases, out of which 10 (19.60%) were proven malignant. Other cases seen were Gynecological (Gyn) 8 (15.68%), Head and Neck (H and N) 5 (9.80%), Gastrointestinal (GI) 4 (7.84%), Lymphomas 3 (5.88%) and 2 (3.92%) cases each of Bone Tumors and Central Nervous System (CNS) tumors. Breast related symptoms constituted the major presentation in young females (aged 18-35 years) in our Rural Cancer Hospital. This high percentage of Breast related symptoms points towards the increasing trend of Breast malignancies possibly overtaking cancer cervix in rural India, as already in the urban settlements of India as well as the increasing awareness in the females of rural India regarding early symptoms of carcinoma Breast.
The Journal of Physical Chemistry A, 2013
The absolute femtosecond pump−probe signal strength of deprotonated fluorescein in basic methanol... more The absolute femtosecond pump−probe signal strength of deprotonated fluorescein in basic methanol is measured. Calculations of the absolute pump−probe signal based on the steady-state absorption and emission spectrum that use only independently measured experimental parameters are carried out. The calculation of the pump−probe signal strength assumes the pump and probe fields are both weak and includes the following factors: the transverse spatial profile of the laser beams; the pulse spectra; attenuation of the propagating pulses with depth in the sample; the anisotropic transition probability for polarized light; and time-dependent electronic population relaxation. After vibrational and solvent relaxation are complete, the calculation matches the measurement to within 10% error without any adjustable parameters. This demonstrates quantitative measurement of absolute excited state population.
Proceedings Tenth International Conference on VLSI Design
... Some of the techniques have been used before for low power designs. Some others are new and i... more ... Some of the techniques have been used before for low power designs. Some others are new and it is demonstrated that significant power sav-ings are achieved with these as well. ... Sharad Malik Ricardo Gonzalez Dept. of Elect. Eng. Dept. of Elect. Eng. Princeton Univ. ...
Indian Journal of Physics, 2011
We discuss enhancement of multiplicities of hadrons at high transverse momentum due to multiple r... more We discuss enhancement of multiplicities of hadrons at high transverse momentum due to multiple reflections of quarks from collapsing Z(3) interfaces in the QGP produced in relativistic heavy-ion collisions. By modeling the dependence of effective mass of the quarks on the Polyakov loop order parameter, we evaluate the reflection coefficient of quarks from collapsing Z(3) interfaces. We use the effective potential proposed by Pisarski for the Polyakov loop to determine the profile of the Z(3) interfaces and calculate the reflection probability for quarks. We discuss the formation of a network of these Z(3) walls in relativistic heavy-ion collisions, in the QGP phase. We do a numerical simulation to calculate the modifications in the thermal transverse momentum spectra of the quarks/anti-quarks that results from a collapsing wall. We then use the recombination model to calculate the transverse momentum spectrum of final hadrons. Our results show enhancement of high P T hadrons, with the enhancement being stronger for heavier quarks. Further, we find that due to larger reflection coefficient for heavier quarks, the density of strange and charm quarks/anti-quarks increases inside the collapsing walls. This implies enhancement in the multiplicities of multi-strange and multi-charmed hadrons.
VLSI Design 2000. Wireless and Digital Imaging in the Millennium. Proceedings of 13th International Conference on VLSI Design
A methodology for reducing ground bounce in typical microprocessors and image processing architec... more A methodology for reducing ground bounce in typical microprocessors and image processing architectures has been described. As we approach Gigascale Integration, chip power consumption is becoming a critical system parameter. Deactivating idle units provides needed reductions in power consumption. However, it introduces inductive noise that can limit voltage scaling. The paper introduces an architectural approach for reducing this inductive noise by providing gradual activation and deactivation of functional blocks. This technique provides a 2x reduction in ground bounce current on a 16 bit ALU simulated in SPICE, while reducing simulated SPEC95 performance by less than 5% on a typical superscalar architecture. It has also been demonstrated to be effective for image processing SIMD architectures.
International Journal of Computer Applications, 2016
Networks-on-Chip (NoCs) are increasingly used in many-core architectures. Todays technology for A... more Networks-on-Chip (NoCs) are increasingly used in many-core architectures. Todays technology for ASICs supports Networks-on-Chip designs which can have 100 million gates on a single chip. In order to implement a competitive NoC architecture in FP-GAs, the area occupied by the network should be kept to a minimum. This helps in utilizing maximum area by the logic while maintaining the performance of the router network. Reducing area also reduces the power consumption. NOC's designs promise to offer considerable advantages over the traditional bus-based designs, in solving the numerous technological, economic and productivity problems associated with billion-transistor system-on-chip development. Here, a very flexible network is designed to propose a highly scalable and can be easily changed to accommodate various needs. This proposed work focused on implementation, analysis and verification of a five port routers. The building blocks of the router are input/output, multiplexer/demultiplexer, crossbar switch, buffer register and arbiters. The arbiters uses the round robin algorithm. The proposed NOC architecture is simulated in Xilinx ISE10.1 software. The source code is written in VHDL. This design is suitable for building networks with irregular topologies and with low latency and
Proceedings of 1994 IEEE Symposium on Low Power Electronics
Recent years have witnessed a rapid growth in research ac-tivity targeted at reducing energy cons... more Recent years have witnessed a rapid growth in research ac-tivity targeted at reducing energy consumption in micropro-cessor based systems. However, this research has by and large not recognized the potential energy savings achievable through optimization of software ...
EPJ Web of Conferences, 2013
Calculations reveal a new kind of non-adiabatic funnel that electronically enhances anti-correlat... more Calculations reveal a new kind of non-adiabatic funnel that electronically enhances anti-correlated vibrational wavepackets on the ground state. These wavepackets replicate all observed 2D signatures of photosynthetic energy transfer, including one not previously explained.
JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH, 2015
Long term exposure of aluminium in rodents has been shown to form amyloid oligomer, similar to Al... more Long term exposure of aluminium in rodents has been shown to form amyloid oligomer, similar to Alzheimer’s disease (AD) pathology. The present study evaluates the effects of chronic aluminium exposure on the cortical metabolism associated with glutamatergic and GABAergic neurons. The metabolism was studied using 1H-[13C]-NMR spectroscopy in conjunction with infusion of [1,6-13C2]glucose in mice treated with aluminium (i.p.). The chronic exposure of aluminium reduced TCA cycle and neurotransmitter cycle fluxes of the excitatory and inhibitory neurons.
Although aluminium has been linked to dementia type diseases including Alzheimer’s and Parkinson’... more Although aluminium has been linked to dementia type diseases including Alzheimer’s and Parkinson’s disease in molecular aspects, the cerebral energy metabolism associated with glutamatergic and GABAergic neurons with aluminium exposure remains elusive. In this study, we have investigated the glutamatergic and GABAergic metabolism in the cerebral cortex, hippocampus and striatum regions of mice under sub-acute exposure of aluminium chloride by using 1H-[13C]-NMR spectroscopy together with infusion of [1,6-13C2]glucose. Both, glutamatergic and GABAergic metabolism were found to be enhanced in aluminium chloride treated mice, which may be due to inflammatory response of aluminium toxicity in brain
EPJ Web of Conferences, 2013
Multiphoton excitation of hot carriers generates multiexcitons that are probed as a function of t... more Multiphoton excitation of hot carriers generates multiexcitons that are probed as a function of the absolute number of photons absorbed. Standard assumptions of Auger recombination analyses fail for an average of 2 excitations.
Changes in mitochondrial function at the cellular level is not fully understood under normal agin... more Changes in mitochondrial function at the cellular level is not fully understood under normal aging. Present study investigates glucose oxidation by glutamatergic and GABAergic neurons, and neurotransmitter cycling in adult and aged mice. Cortical glutamate level was found to be reduced in aged mice. The glucose oxidation by glutamatergic neurons was decreased in aged mice while GABAergic functions seems to be unperturbed.
Journal of Alzheimer's disease : JAD, 2012
Preclinical diagnosis of Alzheimer's disease is a major challenge. The present study evaluate... more Preclinical diagnosis of Alzheimer's disease is a major challenge. The present study evaluates glutamatergic and GABAergic neurotransmitter energetics at the age of 6 months in AβPPswe-PS1dE9 mouse model of Alzheimer's disease by using (1)H-[(13)C]-NMR spectroscopy together with infusion of [1,6-(13)C(2)]glucose. NMR analysis suggested no significant derangement in neurochemical profile in AβPPswe-PS1dE9 mice. However, decrease in labeling of glutamate-C4, GABA-C2 and glutamine-C4 at early infusion-time together with no change in labeling at steady state from [1,6-(13)C(2)]glucose indicates an impaired glutamatergic and GABAergic glucose oxidation and neurotransmitter cycle in AβPPswe-PS1dE9 mice. These findings may have implication in preclinical diagnosis of Alzheimer's disease.
BMJ case reports, Jan 17, 2014
Metastatic spread from non-head and neck tumours (H&N) to the paranasal and orbital region is ext... more Metastatic spread from non-head and neck tumours (H&N) to the paranasal and orbital region is extremely rare. We present a case of breast cancer metastasis to the left sphenoid wing, lateral wall left orbit, lateral wall left sphenoid sinus, medial and lateral wall left maxillary sinus and left pterygoid plates. We provide an exhaustive clinicoradiological imaging with a brief literature review.
South Asian Journal of Cancer, 2015
Introduction: To analyze the pattern of brain metastasis (BM), and to use intensity modulated rad... more Introduction: To analyze the pattern of brain metastasis (BM), and to use intensity modulated radiation therapy (IMRT) for target dose escalation in cases with ≤3 metastatic lesions (oligometastases). Materials and Methods: Thirty-two consecutive cases of BM treated during September 2009 to August 2012 were analyzed retrospectively. Results: The study comprised 13 males (40.62%) and 19 females (59.37%). Thirteen (40%) patients presented with disseminated intracranial metastases, while 19 (60%) had ≤3 foci. In 25 cases (78%), the primary was located either in the breast (14 cases) or lung (11 cases). The 13 patients with disseminated intracranial metastases received whole brain radiation therapy to a dose of 30 Gy/10-12 daily fractions (Group A) while the 19 cases with ≤3 lesions received an additional dose of 6-10 Gy to gross lesions using a simultaneous integrated boost (SIB) with IMRT thus receiving a total dose of 36-40 Gy/12-15 fractions (Group B). Overall survival (OS) for the ...
Bioinformation, 2007
HBNG is a graph theory based tool for visualization of hydrogen bond network in 2D. Digraphs gene... more HBNG is a graph theory based tool for visualization of hydrogen bond network in 2D. Digraphs generated by HBNG facilitate visualization of cooperativity and anticooperativity chains and rings in protein structures. HBNG takes hydrogen bonds list files (output from HBAT, HBEXPLORE, HBPLUS and STRIDE) as input and generates a DOT language script and constructs digraphs using freeware AT and T Graphviz tool. HBNG is useful in the enumeration of favorable topologies of hydrogen bond networks in protein structures and determining the effect of cooperativity and anticooperativity on protein stability and folding. HBNG can be applied to protein structure comparison and in the identification of secondary structural regions in protein structures.
ISSAC 2004 is a continuation of a well-established series of the international conferences for th... more ISSAC 2004 is a continuation of a well-established series of the international conferences for the presentation of the latest advances in the field of Symbolic and Algebraic Computation. The first meeting of the series (1966) was held in Washington, and sponsored by Association for Computing Machinery (ACM). Since then, the abbreviated name of the meeting has evolved from SYMSAM, SYMSAC, EUROSAM, EUROCAL to finally settle on the present name ISSAC. This 29th meeting will be at the University of Cantabria in Santander, Spain from July 4th to July 7th.The topics of the conference includes, but are not limited to: Algorithmic mathematics. Algebraic, symbolic and symbolic-numeric algorithms. Simplification, function manipulation, equations, summation, integration, ODE/PDE, linear algebra, number theory, group and geometric computing. Computer Science. Theoretical and practical problems in symbolic computation. Systems, problem solving environments, user interfaces, software, libraries, parallel/distributed computing and programming languages for symbolic computation, concrete analysis, benchmarking, theoretical and practical complexity of computer algebra algorithms, automatic differentiation, code generation, mathematical data structures and exchange protocols. Applications. Problem treatments using algebraic, symbolic or symbolic-numeric computation in an essential or a novel way. Engineering, economics and finance, physical and biological sciences, computer science, logic, mathematics, statistics, education. Following the tradition, ISSAC 2004 features invited talks, contributed papers, tutorials, poster sessions, and software exhibitions. This volume contains all the contributed papers to be presented at the meeting as well as the abstracts of the invited talks.A total of 131 papers were submitted, and each was distributed to members of the program committee and external reviewers. An average of 3 referee reports were obtained for each submission, and finally 43 papers were selected for presentation. As a consequence, we are convinced that the contributions in these proceedings represent excellent and wide, though not complete, spectra of areas spanning most of symbolic and algebraic computation. It is a pleasure to acknowledge the contributions of all these persons, as well as all researchers and educators who submitted papers for consideration, and all those who assisted in the selection process. Unfortunately, due to the time constraint of three days without parallel sessions, many interesting papers could not be accepted for presentation and inclusion in these proceedings.
RSC Advances, 2015
The role of different biological templates in determining the morphology and properties of SPIONs.
South Asian Journal of Cancer, 2012
A total of 51 cases of young females aged between 18-35 years were prospectively studied for the ... more A total of 51 cases of young females aged between 18-35 years were prospectively studied for the presentation in a Rural Charitable Cancer hospital in north India during the period August 2011 to April 2012. Breast related symptoms comprised 27 (52.94%) cases, out of which 10 (19.60%) were proven malignant. Other cases seen were Gynecological (Gyn) 8 (15.68%), Head and Neck (H and N) 5 (9.80%), Gastrointestinal (GI) 4 (7.84%), Lymphomas 3 (5.88%) and 2 (3.92%) cases each of Bone Tumors and Central Nervous System (CNS) tumors. Breast related symptoms constituted the major presentation in young females (aged 18-35 years) in our Rural Cancer Hospital. This high percentage of Breast related symptoms points towards the increasing trend of Breast malignancies possibly overtaking cancer cervix in rural India, as already in the urban settlements of India as well as the increasing awareness in the females of rural India regarding early symptoms of carcinoma Breast.
The Journal of Physical Chemistry A, 2013
The absolute femtosecond pump−probe signal strength of deprotonated fluorescein in basic methanol... more The absolute femtosecond pump−probe signal strength of deprotonated fluorescein in basic methanol is measured. Calculations of the absolute pump−probe signal based on the steady-state absorption and emission spectrum that use only independently measured experimental parameters are carried out. The calculation of the pump−probe signal strength assumes the pump and probe fields are both weak and includes the following factors: the transverse spatial profile of the laser beams; the pulse spectra; attenuation of the propagating pulses with depth in the sample; the anisotropic transition probability for polarized light; and time-dependent electronic population relaxation. After vibrational and solvent relaxation are complete, the calculation matches the measurement to within 10% error without any adjustable parameters. This demonstrates quantitative measurement of absolute excited state population.