Scientific Reviews and Chemical Communications, 2014
Degradation of fast green FCF by Fe-pillared bentonite clay in presence of light has been carried... more Degradation of fast green FCF by Fe-pillared bentonite clay in presence of light has been carried out. The progress of the reaction was monitored spectrophotometrically. The effect of some parameters affecting the rate of reaction, such as pH, dye concentration, amount of Fe-pillared clay, amount of iron concentration, H2O2, light intensity, etc. has been studied. Kinetic studies show that this reaction follows pseudo-first order kinetics. A tentative mechanism for photo-Fenton degradation of fast green FCF has also been proposed.
Owls are top vertebrate predators with 243 species distributed across the world (Gill & Donsker 2... more Owls are top vertebrate predators with 243 species distributed across the world (Gill & Donsker 2017). Besides being the bioindicator of ecosystem health (Sergio et al. 2004), they are vital for broader, ecosystemlevel conservation. Their conservation inherently protects many other species, habitats and ecological functions, yet they are in crisis. As many as seven species are Critically Endangered, 22 are Vulnerable, eight are Endangered, and 23 are Near Threatened as per the IUCN Red List of Threatened Species (IUCN 2017). Habitat loss, pesticide use, vehicle collisions and illegal trade are some of the causes responsible for their decline and current status (Sergio et al. 2004; Ahmed 2010).
Today in the era of modernization and globalization there has been significant restructuring of t... more Today in the era of modernization and globalization there has been significant restructuring of the society norms; and major changes are being seen in our day-to-day life. Common issues in these days are increasing nuclear family life style and emphasizing on materialistic prospects. All these changes have their own pros and cons. Changing shades of life in the contemporary world gave way to idyllic as well as harmful life style in individuals. Working parents, increased use of virtual social media, irrational following of western culture and lack of supporting guidance from elders are making our youth isolated, negative and specifically prone to drug addiction. One of the modem world's evils is drug abuse and intensified addiction. Governments all over the world dispatch constant efforts to reduce the drug trafficking by enacting strict laws and enforcing the same. But the corruption of human resource is still high due to drug addictions and the positive potentials of individua...
Diagnostic and Therapeutic Applications of Light in Cardiology 2019, 2019
Coronary arteries are covered by a thin layer of endothelial cells (ECs). Impairment of ECs is at... more Coronary arteries are covered by a thin layer of endothelial cells (ECs). Impairment of ECs is at the origin of coronary atherosclerosis and its clinical manifestations. However, the study of ECs in humans remains elusive because of a lack of an imaging tool with sufficient resolution. We have developed a light-based 1-µm-resolution microscopic imaging technology termed micro-optical coherence tomography (µOCT) that can be implemented in a coronary catheter. In this study, we investigated the capability of µOCT to visualize EC morphology. We stripped the endothelium from 36 fresh swine coronary segments with cyanoacrylate glue. Histology showed that the stripping procedure successfully removed ECs from the swine coronary arteries. Coronary segments were then imaged in 3D with µOCT, and were processed for histology and scanning electron microscopy (SEM). µOCT images of stripped vs. intact sites were volume rendered in 3D and visually compared. 3D-µOCT allowed visualization of EC pave...
With the nonstop extension of energy conveyance framework, the quantity of dispersion types of ge... more With the nonstop extension of energy conveyance framework, the quantity of dispersion types of gear has turned out to be bigger and bigger. Keeping in mind the end goal to ensure that every one of the supplies can work dependably, a lot of support errands ought to be led. In this manner ,support planning of dispersion arrange is an essential substance, which has huge impact on unwavering quality and economy of circulation organize activity. Resource administration is one of the urgent parts of worry to chiefs, for example, control dissemination organizations and includes a few activities, for example, segment obtaining, upkeep, substitution, and mien. A standout amongst the most critical parts of advantage administration is preventive or remedial upkeep. The reason for upkeep is to broaden gear lifetime, or if nothing else the interim to the following disappointment whose repair might be exorbitant. Besides, it is normal that compelling upkeep arrangements can diminish the recurrenc...
This study investigated the efficiency of two types of media, namely, gravels and sand for their ... more This study investigated the efficiency of two types of media, namely, gravels and sand for their nutrient removal capabilities from wastewater. Different levels of sand depths were also experimented for their removal efficiencies. And for this purpose three laboratory scale vertical upflow constructed wetlands (S1, S2, S3) were established at PHE Laboratory, MNIT, Jaipur. S1was filled with two layers of different size of gravels while S2 and S3 also contained different depths of sand along with the layers of gravels. All the lab scale CWs were fed with the secondary treated water brought from STP Dehlawas, Jaipur. Each system was operated at a hydraulic retention time of 2 days. The study was carried out for a period of three months from February to April, 2013. The results show that sand provides better removal of nutrients from wastewater than gravels, though TKN removal was better with gravels. Both sand and gravel were unable to remove NO3-N from the system as there was an incre...
Protein aggregation phenomenon is closely related to the formation of amyloids which results in m... more Protein aggregation phenomenon is closely related to the formation of amyloids which results in many neurodegenerative diseases like Alzheimer's, Parkinson's, Huntington's, and Amyotrophic Lateral Sclerosis. In order to prevent and treat these diseases, a clear understanding of the mechanism of misfolding and self-assembly of peptides and proteins is very crucial. The aggregation of a protein may involve various microscopic events. Multiple simulations utilizing the solutions of the master equation have given a better understanding of the kinetic profiles involved in the presence and absence of a particular microscopic event. This review focuses on understanding the contribution of these molecular events to protein aggregation based on the analysis of kinetic profiles of aggregation. We also discuss the effect of inhibitors, which target various species of aggregation pathways, on the kinetic profile of protein aggregation. At the end of this review, some strategies for the inhibition of aggregation that can be utilized by combining the chemical kinetics approach with thermodynamics are proposed.
Cross polarized optical coherence tomography (OCT) offers enhanced contrast in certain pathologic... more Cross polarized optical coherence tomography (OCT) offers enhanced contrast in certain pathological conditions. Traditional cross-polarized OCT systems require a defined input polarization and thus require several polarization controlling elements increasing the overall complexity of the system. Our proposed system requires a single quarter wave plate as a polarization controller thus simplifying the system significantly. The majority of cross-polarized OCT systems are spectrometer based, which suffers from slow speed and low signal to noise ratio. In this work, we present a swept source based cross-polarized OCT system that works for any input polarization state. The system was tested against known birefringent materials such as quarter wave plate. Furthermore, biological samples such as finger, nail and chicken breast were imaged to demonstrate the potential of our technique.
Balanced reference-sample arm dispersion is critical in optical coherence tomography systems in o... more Balanced reference-sample arm dispersion is critical in optical coherence tomography systems in order to attain images with the highest axial resolution. Here, an experimental method for the estimation and correction of dispersion in an optical coherence tomography system is presented. The system dispersion was computed from two optical coherence tomography images of the reference mirror that were symmetrically placed around the zero delay point. The method was tested using a broad bandwidth spectral domain optical coherence tomography system, compensating for the dispersion caused by a 3 mm thick fused silica flat placed in the sample arm. Using our method, dispersion compensation was achieved and the axial resolution was improved from 10.6 μm to 1.9 μm in air. Results suggest that this technique can be a simple and effective method for eliminating axial resolution degradation due to dispersion mismatch between the sample and reference arm in high-resolution optical coherence tomography systems.
Abstract The optical Kerr effect (OKE) in a transfer ribonucleic acid (tRNA) solution induced by ... more Abstract The optical Kerr effect (OKE) in a transfer ribonucleic acid (tRNA) solution induced by femtosecond pulses of linearly polarized pump light ( λ i = 800 nm) and sounded by probe light ( λ p = 800 nm) was studied. The measurements were performed to find nonlinear optical parameters describing a single molecule (molecular Kerr constant K, mean nonlinear third order optical polarizability c pi ) and to compare them with our previous OKE results obtained in ns and ps time range . The OKE experiment has proven to be an efficient method to obtain the nonlinear parameters of single molecules in solution, which reflects dynamic structure changes.
Text Summarization is condensing of text such that, redundant data are removed and important info... more Text Summarization is condensing of text such that, redundant data are removed and important information is extracted and represented in the shortest way possible. With the explosion of the abundant data present on social media, it has become important to analyze this text for seeking information and use it for the advantage of various applications and people. From past few years, this task of automatic summarization has stirred the interest among communities of Natural Language Processing and Text Mining, especially when it comes to opinion summarization. Opinions play a pivotal role in decision making in the society. Other's opinions and suggestions are the base for an individual or a company while making decisions. In this paper, we propose a graph based technique that generates summaries of redundant opinions and uses sentiment analysis to combine the statements. The summaries thus generated are abstraction based summaries and are well formed to convey the gist of the text.
Contrary to popular opinion, and the Eurocentric belief, there is more to radicalism than the ‘Is... more Contrary to popular opinion, and the Eurocentric belief, there is more to radicalism than the ‘Islamic’ militants. Radicalism dates back much longer than the current violent radical threat by some organisations. For some time now, a major part of the World particularly communities in Europe are in the grip of right-wing radicalism, the branch of thought that is associated with extreme nationalism and fascism. Today, the problem is not only the increase in Islamic radicalization, but also the far-right radical movements that surface as anti-Muslim, anti-Roma and anti-immigrant protests in Central and Eastern Europe. The question now is whether we should be afraid of the violent radical outburst or the gradual increase in intolerance and hate speech. This aim of this research is to examine the increase in radicalism in Europe, particularly in light of the recent anti-immigrant protests in Germany, and study how these prejudices affect the availability of opportunity to Middle-Eastern immigrants in this part of the world. This paper shall analyse the proliferation of radical right wing thought and its reflection in the political narrative. It shall describe the far-right extremism in Europe and its impact on the Middle-East.
Journal of Infrared, Millimeter, and Terahertz Waves, 2016
We demonstrate the use of a Mach-Zehnder interferometer (MZI) to improve the performance of terah... more We demonstrate the use of a Mach-Zehnder interferometer (MZI) to improve the performance of terahertz electric field measurements based on spectral-domain interferometry. The interferometer is introduced into the probe beam line to improve the temporal overlap between the two probe pulses. The probe pulse in the sample arm of the interferometer passes through the detection crystal and overlaps with the terahertz pulse, while the probe pulse in the reference arm does not. We measure the phase change between spectral components of these two pulses using spectral-domain interferometry. Using this new technique, we enable an unlimited temporal scanning window without the loss in the signal-to-noise ratio, thus overcoming the major limitation of conventional spectral-domain interferometry techniques for terahertz electric field detection.
INTRODUCTION: Plant derived medicinal products have been used throughout the world. Elaeocarpus g... more INTRODUCTION: Plant derived medicinal products have been used throughout the world. Elaeocarpus ganitrus belongs to family Elaeocarpaceae. Genus Elaeocarpus contains approximately 350 species and distributed in India, and Hawaii in the east. The greatest concentration of species is found in the islands of Borneo and New Guinea 1, 2 . Elaeocarpus ganitrus is commonly known as Rudraksha and grows in India, South-East Asia, The fruits of Elaeocarpus ganitrus is covered by arduous endocarp and used as religious jewellery throughout India and Southeast Asia 4 . Fruit of Rudraksha contain alkaloids 5, 6 flavonoids, tannins 7 and fatty acids 8 . After development of advance techniques like HPTLC new flavanoid Quercetin have been determined 9 Rudraksha fruits are thermogenic, sedative and are useful in anorexia, bronchitis, neuralgia, cephalagia, migraine, manic conditions and other brain disorders 10 . The pulp of stony fruit may be useful in epilepsy and other mental disorders 11 . Moreov...
ABSTRACT Elaeocarpus is a genus of evergreen broad-leaved trees and shrubs widely distributed in ... more ABSTRACT Elaeocarpus is a genus of evergreen broad-leaved trees and shrubs widely distributed in warm regions belonging to family Elaeocarpaceae. This review consists of all publications relevant to pharmaceutical and pharmacological activity of Elaeocarpus genus that were identified by the authors. Various different methods used in this study prevent any kind of statistical pooling in results. tudies indicate that various Elaeocarpus species contain chemical constituents such as alkaloids, flavonoids, glycosides, tannins, triterpenes, fatty acids, ellagic acid derivatives and cytotoxic compounds. Studies also indicate different therapeutic activity of Elaeocarpus such as antiasthamatic, anxiolytic, antidepressant, antidiabetic and various other activities. All research work on Elaeocarpus reveals the immense medicinal value of this genus but still various Elaeocarpus species should be studied more extensively to confirm these results and reveal other potential medicinal values.
Scientific Reviews and Chemical Communications, 2014
Degradation of fast green FCF by Fe-pillared bentonite clay in presence of light has been carried... more Degradation of fast green FCF by Fe-pillared bentonite clay in presence of light has been carried out. The progress of the reaction was monitored spectrophotometrically. The effect of some parameters affecting the rate of reaction, such as pH, dye concentration, amount of Fe-pillared clay, amount of iron concentration, H2O2, light intensity, etc. has been studied. Kinetic studies show that this reaction follows pseudo-first order kinetics. A tentative mechanism for photo-Fenton degradation of fast green FCF has also been proposed.
Owls are top vertebrate predators with 243 species distributed across the world (Gill & Donsker 2... more Owls are top vertebrate predators with 243 species distributed across the world (Gill & Donsker 2017). Besides being the bioindicator of ecosystem health (Sergio et al. 2004), they are vital for broader, ecosystemlevel conservation. Their conservation inherently protects many other species, habitats and ecological functions, yet they are in crisis. As many as seven species are Critically Endangered, 22 are Vulnerable, eight are Endangered, and 23 are Near Threatened as per the IUCN Red List of Threatened Species (IUCN 2017). Habitat loss, pesticide use, vehicle collisions and illegal trade are some of the causes responsible for their decline and current status (Sergio et al. 2004; Ahmed 2010).
Today in the era of modernization and globalization there has been significant restructuring of t... more Today in the era of modernization and globalization there has been significant restructuring of the society norms; and major changes are being seen in our day-to-day life. Common issues in these days are increasing nuclear family life style and emphasizing on materialistic prospects. All these changes have their own pros and cons. Changing shades of life in the contemporary world gave way to idyllic as well as harmful life style in individuals. Working parents, increased use of virtual social media, irrational following of western culture and lack of supporting guidance from elders are making our youth isolated, negative and specifically prone to drug addiction. One of the modem world's evils is drug abuse and intensified addiction. Governments all over the world dispatch constant efforts to reduce the drug trafficking by enacting strict laws and enforcing the same. But the corruption of human resource is still high due to drug addictions and the positive potentials of individua...
Diagnostic and Therapeutic Applications of Light in Cardiology 2019, 2019
Coronary arteries are covered by a thin layer of endothelial cells (ECs). Impairment of ECs is at... more Coronary arteries are covered by a thin layer of endothelial cells (ECs). Impairment of ECs is at the origin of coronary atherosclerosis and its clinical manifestations. However, the study of ECs in humans remains elusive because of a lack of an imaging tool with sufficient resolution. We have developed a light-based 1-µm-resolution microscopic imaging technology termed micro-optical coherence tomography (µOCT) that can be implemented in a coronary catheter. In this study, we investigated the capability of µOCT to visualize EC morphology. We stripped the endothelium from 36 fresh swine coronary segments with cyanoacrylate glue. Histology showed that the stripping procedure successfully removed ECs from the swine coronary arteries. Coronary segments were then imaged in 3D with µOCT, and were processed for histology and scanning electron microscopy (SEM). µOCT images of stripped vs. intact sites were volume rendered in 3D and visually compared. 3D-µOCT allowed visualization of EC pave...
With the nonstop extension of energy conveyance framework, the quantity of dispersion types of ge... more With the nonstop extension of energy conveyance framework, the quantity of dispersion types of gear has turned out to be bigger and bigger. Keeping in mind the end goal to ensure that every one of the supplies can work dependably, a lot of support errands ought to be led. In this manner ,support planning of dispersion arrange is an essential substance, which has huge impact on unwavering quality and economy of circulation organize activity. Resource administration is one of the urgent parts of worry to chiefs, for example, control dissemination organizations and includes a few activities, for example, segment obtaining, upkeep, substitution, and mien. A standout amongst the most critical parts of advantage administration is preventive or remedial upkeep. The reason for upkeep is to broaden gear lifetime, or if nothing else the interim to the following disappointment whose repair might be exorbitant. Besides, it is normal that compelling upkeep arrangements can diminish the recurrenc...
This study investigated the efficiency of two types of media, namely, gravels and sand for their ... more This study investigated the efficiency of two types of media, namely, gravels and sand for their nutrient removal capabilities from wastewater. Different levels of sand depths were also experimented for their removal efficiencies. And for this purpose three laboratory scale vertical upflow constructed wetlands (S1, S2, S3) were established at PHE Laboratory, MNIT, Jaipur. S1was filled with two layers of different size of gravels while S2 and S3 also contained different depths of sand along with the layers of gravels. All the lab scale CWs were fed with the secondary treated water brought from STP Dehlawas, Jaipur. Each system was operated at a hydraulic retention time of 2 days. The study was carried out for a period of three months from February to April, 2013. The results show that sand provides better removal of nutrients from wastewater than gravels, though TKN removal was better with gravels. Both sand and gravel were unable to remove NO3-N from the system as there was an incre...
Protein aggregation phenomenon is closely related to the formation of amyloids which results in m... more Protein aggregation phenomenon is closely related to the formation of amyloids which results in many neurodegenerative diseases like Alzheimer's, Parkinson's, Huntington's, and Amyotrophic Lateral Sclerosis. In order to prevent and treat these diseases, a clear understanding of the mechanism of misfolding and self-assembly of peptides and proteins is very crucial. The aggregation of a protein may involve various microscopic events. Multiple simulations utilizing the solutions of the master equation have given a better understanding of the kinetic profiles involved in the presence and absence of a particular microscopic event. This review focuses on understanding the contribution of these molecular events to protein aggregation based on the analysis of kinetic profiles of aggregation. We also discuss the effect of inhibitors, which target various species of aggregation pathways, on the kinetic profile of protein aggregation. At the end of this review, some strategies for the inhibition of aggregation that can be utilized by combining the chemical kinetics approach with thermodynamics are proposed.
Cross polarized optical coherence tomography (OCT) offers enhanced contrast in certain pathologic... more Cross polarized optical coherence tomography (OCT) offers enhanced contrast in certain pathological conditions. Traditional cross-polarized OCT systems require a defined input polarization and thus require several polarization controlling elements increasing the overall complexity of the system. Our proposed system requires a single quarter wave plate as a polarization controller thus simplifying the system significantly. The majority of cross-polarized OCT systems are spectrometer based, which suffers from slow speed and low signal to noise ratio. In this work, we present a swept source based cross-polarized OCT system that works for any input polarization state. The system was tested against known birefringent materials such as quarter wave plate. Furthermore, biological samples such as finger, nail and chicken breast were imaged to demonstrate the potential of our technique.
Balanced reference-sample arm dispersion is critical in optical coherence tomography systems in o... more Balanced reference-sample arm dispersion is critical in optical coherence tomography systems in order to attain images with the highest axial resolution. Here, an experimental method for the estimation and correction of dispersion in an optical coherence tomography system is presented. The system dispersion was computed from two optical coherence tomography images of the reference mirror that were symmetrically placed around the zero delay point. The method was tested using a broad bandwidth spectral domain optical coherence tomography system, compensating for the dispersion caused by a 3 mm thick fused silica flat placed in the sample arm. Using our method, dispersion compensation was achieved and the axial resolution was improved from 10.6 μm to 1.9 μm in air. Results suggest that this technique can be a simple and effective method for eliminating axial resolution degradation due to dispersion mismatch between the sample and reference arm in high-resolution optical coherence tomography systems.
Abstract The optical Kerr effect (OKE) in a transfer ribonucleic acid (tRNA) solution induced by ... more Abstract The optical Kerr effect (OKE) in a transfer ribonucleic acid (tRNA) solution induced by femtosecond pulses of linearly polarized pump light ( λ i = 800 nm) and sounded by probe light ( λ p = 800 nm) was studied. The measurements were performed to find nonlinear optical parameters describing a single molecule (molecular Kerr constant K, mean nonlinear third order optical polarizability c pi ) and to compare them with our previous OKE results obtained in ns and ps time range . The OKE experiment has proven to be an efficient method to obtain the nonlinear parameters of single molecules in solution, which reflects dynamic structure changes.
Text Summarization is condensing of text such that, redundant data are removed and important info... more Text Summarization is condensing of text such that, redundant data are removed and important information is extracted and represented in the shortest way possible. With the explosion of the abundant data present on social media, it has become important to analyze this text for seeking information and use it for the advantage of various applications and people. From past few years, this task of automatic summarization has stirred the interest among communities of Natural Language Processing and Text Mining, especially when it comes to opinion summarization. Opinions play a pivotal role in decision making in the society. Other's opinions and suggestions are the base for an individual or a company while making decisions. In this paper, we propose a graph based technique that generates summaries of redundant opinions and uses sentiment analysis to combine the statements. The summaries thus generated are abstraction based summaries and are well formed to convey the gist of the text.
Contrary to popular opinion, and the Eurocentric belief, there is more to radicalism than the ‘Is... more Contrary to popular opinion, and the Eurocentric belief, there is more to radicalism than the ‘Islamic’ militants. Radicalism dates back much longer than the current violent radical threat by some organisations. For some time now, a major part of the World particularly communities in Europe are in the grip of right-wing radicalism, the branch of thought that is associated with extreme nationalism and fascism. Today, the problem is not only the increase in Islamic radicalization, but also the far-right radical movements that surface as anti-Muslim, anti-Roma and anti-immigrant protests in Central and Eastern Europe. The question now is whether we should be afraid of the violent radical outburst or the gradual increase in intolerance and hate speech. This aim of this research is to examine the increase in radicalism in Europe, particularly in light of the recent anti-immigrant protests in Germany, and study how these prejudices affect the availability of opportunity to Middle-Eastern immigrants in this part of the world. This paper shall analyse the proliferation of radical right wing thought and its reflection in the political narrative. It shall describe the far-right extremism in Europe and its impact on the Middle-East.
Journal of Infrared, Millimeter, and Terahertz Waves, 2016
We demonstrate the use of a Mach-Zehnder interferometer (MZI) to improve the performance of terah... more We demonstrate the use of a Mach-Zehnder interferometer (MZI) to improve the performance of terahertz electric field measurements based on spectral-domain interferometry. The interferometer is introduced into the probe beam line to improve the temporal overlap between the two probe pulses. The probe pulse in the sample arm of the interferometer passes through the detection crystal and overlaps with the terahertz pulse, while the probe pulse in the reference arm does not. We measure the phase change between spectral components of these two pulses using spectral-domain interferometry. Using this new technique, we enable an unlimited temporal scanning window without the loss in the signal-to-noise ratio, thus overcoming the major limitation of conventional spectral-domain interferometry techniques for terahertz electric field detection.
INTRODUCTION: Plant derived medicinal products have been used throughout the world. Elaeocarpus g... more INTRODUCTION: Plant derived medicinal products have been used throughout the world. Elaeocarpus ganitrus belongs to family Elaeocarpaceae. Genus Elaeocarpus contains approximately 350 species and distributed in India, and Hawaii in the east. The greatest concentration of species is found in the islands of Borneo and New Guinea 1, 2 . Elaeocarpus ganitrus is commonly known as Rudraksha and grows in India, South-East Asia, The fruits of Elaeocarpus ganitrus is covered by arduous endocarp and used as religious jewellery throughout India and Southeast Asia 4 . Fruit of Rudraksha contain alkaloids 5, 6 flavonoids, tannins 7 and fatty acids 8 . After development of advance techniques like HPTLC new flavanoid Quercetin have been determined 9 Rudraksha fruits are thermogenic, sedative and are useful in anorexia, bronchitis, neuralgia, cephalagia, migraine, manic conditions and other brain disorders 10 . The pulp of stony fruit may be useful in epilepsy and other mental disorders 11 . Moreov...
ABSTRACT Elaeocarpus is a genus of evergreen broad-leaved trees and shrubs widely distributed in ... more ABSTRACT Elaeocarpus is a genus of evergreen broad-leaved trees and shrubs widely distributed in warm regions belonging to family Elaeocarpaceae. This review consists of all publications relevant to pharmaceutical and pharmacological activity of Elaeocarpus genus that were identified by the authors. Various different methods used in this study prevent any kind of statistical pooling in results. tudies indicate that various Elaeocarpus species contain chemical constituents such as alkaloids, flavonoids, glycosides, tannins, triterpenes, fatty acids, ellagic acid derivatives and cytotoxic compounds. Studies also indicate different therapeutic activity of Elaeocarpus such as antiasthamatic, anxiolytic, antidepressant, antidiabetic and various other activities. All research work on Elaeocarpus reveals the immense medicinal value of this genus but still various Elaeocarpus species should be studied more extensively to confirm these results and reveal other potential medicinal values.
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