Chemistry Group

Goa, India

Chemistry Group

Goa, India
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Padmasubashini V.,Chemistry Group | Chakrapani G.,Chemistry Group
Atomic Spectroscopy | Year: 2016

Coal fly ash contains several trace elements some of which are toxic such as As, Cr, Pb, etc. Coal ash also contains relatively high amounts of rare earth elements whose recovery from coal ash could be an alternate source for their supply. Although uranium and thorium are less chemically toxic than other constituent elements such as arsenic, questions have been raised concerning the possible risk from radiation. Hence, the concentration levels of all of these trace toxic elements in fly ash samples have to be assessed to determine whether the ash is hazardous or not, and also to decide the place and method of its disposal or reutilization. In this study, multi-elemental analysis of some coal ash samples originating from two thermal power plants in southern India has been carried out, employing inductively coupled plasma atomic emission spectrometry (ICP-AES) and inductively coupled plasma mass spectrometry (ICP-MS), with the focus on some trace toxic elements. The methods employed were validated by analayzing international certified fly ash reference materials. The concentrations of trace-toxic elements in the samples analyzed were: 20-82 μg/g for As, 45-281 μg/g for Cr, 31-607 μg/g for Ba, 21-865 μg/g for Sr, 8-39 μg/g for Ge, <5-80 μg/g for Ga, <5-100 μg/g for Cu, 19-50 μg/g for Co, 58-258 μg/g for Ni, 8-73 μg/g for Pb, 44-260 μg/g for Zn, 0.6-8.6 μg/g for U, 1-30 μg/g for Th, 6-196 μg/g for La, 14-528 μg/g for Ce, 5-196 μg/g for Y. These results were compared with trace-toxic element concentrations in coal ash samples as reported in the literature.

News Article | October 25, 2016

How often does your boss summon you to play Minecraft, or demand that everyone convene urgently in the boardroom for a game of Monopoly? Not often, I bet. Yet, as Claire Woodcock, strategy manager at digital agency, Razorfish, says: "Adults are no different to children in that we learn best through play." Gamification - using elements of game play to make people engage more with brands, products and company diktats - certainly seems to be thriving. But is it more than just a gimmick? Kingfisher, owner of the B&Q, Brico Depot and Screwfix brands, believes so. It adopted gamification to raise awareness of pensions and savings among its 36,000 employees. Communications agency Teamspirit created a gaming app for them called "Bolt To The Finish" involving characters from the fictional Bolt family collecting coins and being chased by a nut (of the metal variety). As staff play, the game educates them about pensions saving. For instance, the younger you start saving for a pension the better, so the younger character Sanjay has a less challenging time than an older character. "The game was educational whilst entertaining, and encouraged players to think about pensions in a different way - great for changing behaviour," says Banafsheh Ghafoori, pensions technical and communication manager at Kingfisher. "In terms of the game itself, the statistics have been great, with the leaderboard element encouraging replays and reinforcing the messages." As a result, the group saw a 20% increase in the number of staff choosing to save into their pension at the maximum contribution level, says Ms Ghafoori, while 78% said the game had encouraged them to think about saving for the future. Gamification can generally be considered successful if it gets people doing something in which they previously lacked motivation, argues Lauren Ferro, gamification consultant and doctoral researcher at RMIT University in Melbourne, Australia. But she takes it one step further: "For me, success is when people are changing their behaviour beyond the novelty - they are able to develop lasting changes." As well as changing behaviour, gamification is being used to assess behaviour - in recruitment, for example. When software company SAP wanted to recruit from a wider range of people, it worked with business consultancy The Chemistry Group to create a game combining social media with personality assessments. Players log in to the game via their Facebook accounts and data on their Facebook "likes" is correlated with their game behaviour, and data from other assessments, to create a personality profile. "The gaming tool gives a better experience for applicants by helping to show what it would be like to work for SAP so they can see if it's right for them and, at the same time, allows us to see if this candidate is right for us," says Matt Jeffrey, SAP's vice president head of global sourcing and employment branding. He says that in future the tool will allow SAP to tap into latent talent by engaging with people who might not have any immediately relevant experience. "It will tell them where they could fit into SAP and invite them to apply for a job," he says. Gamification is also used to incentivise customers to use a product more often. For example, Romanian app developer, T-Me Studios, launched its Redraw Keyboard in September to replace the standard keyboard on Android devices. The new design aims to enhance productivity through tools such as instant translation and Google Docs integration. Users can also personalise their keyboards with different branded themes and emojis. But T-Me rewards users for the time they spend using the keyboard app. "The more they type and the more emojis they use, for example, the more rewards they get," explains Ioanina Pavel, the firm's head of content and social media marketing. The rewards translate into coins that can be used to access more tools, while a leaderboard pits users against each other and encourages competition. Since launch, the keyboard has already amassed more than 1.4 million users, with 300,000 of those using it every day. "The gamification feature is one of the most popular features of the Redraw Keyboard," says Ms Pavel. Gamification has certainly matured, says Brian Burke, analyst at research consultancy Gartner. "A few years ago it was scattergun - people were trying to apply gamification to everything and clearly that had limited success," he says. "Marketers saw it as a shiny new object and they all wanted some, but that has really slowed down." Ms Woodcock agrees that businesses are starting to see past "gimmicky campaigns" and understand why gamification is useful. "We're starting to see companies apply gamification to hard problems, particularly to help people with their finances," she says. "From start-ups like Cleo AI, which gives you a running breakdown of your finances, to traditional business like Aviva, who have just launched a pensions calculator which uses gamification principles, companies old and new are embracing game design techniques." Nurses have even been using a board game - The Drug Round Game - to help sharpen up their skills. A general rule of marketing is that the more engaging advertising content is, the more successful it will be. And games can certainly make ads more fun. Aflac, one of the largest insurance companies in the US, worked with video platform Innovid to develop its "Save the Duck" game involving clicking on leaks as fast you can to earn points. The engagement rate was 67% higher than Innovid's industry benchmarks for interactive video, and 431% higher than traditional pre-roll ads, the company says. Viewers spent 75 seconds engaging with the content, on top of watching the 30-second video. "One of the keys to getting it right is to make sure the gaming element is not at the expense of the message the advert is trying to convey," says Tal Chalozin, Innovid's chief technology officer. In other words, identify clear objectives and then work out whether Monopoly or Minecraft will float your audience's boat. Or even their duck. Click here for more Technology of Business features

News Article | November 10, 2016

Kinases play important roles in many biological signaling pathways, as an enzyme that catalyzes the transfer of phosphate groups from high-energy, phosphate-donating molecules to specific substrates. Kinase inhibitors are, therefore, potentially found as actives in typical phenotypic screens. DiscoverX is sponsoring a free webinar on the interplay of kinase broad profiling and phenotypic screening, which will provide details on the design of the Janssen kinase inhibitor broad profiling project and its impact on general early kinase drug discovery projects. The team at Janssen Research & Development will be sharing two examples during this webinar, the mouse embryonic stem cell stemness assay, run in collaboration with Dundee DSTT, and the literature reported splicing corrector assay of pre-Lamin A. They will share results of how kinase inhibitor broad profiling and chem-bioinformatic analyses developed in the IMI OpenPhacts consortium can impact target deconvolution after phenotypic screening. The outcomes of these analyses are lists of potential kinase targets for further biological validation. DiscoverX has arranged for Dr. Edgar Jacoby, senior principal scientist in computational chemistry at Janssen Research & Development, to be the presenter during this webinar. Jacoby received his doctorate in computational chemistry from RWTH Aachen University, before doing post-doctoral work in molecular biophysics at Harvard Medical School and the University of Chicago. In 2013, he joined Janssen Research & Development as a senior principal scientist in computational chemistry. Prior to joining Janssen Research & Development, Jacoby worked at Servier doing research framework in molecular modeling. He has also worked at the Combinatorial Chemistry Group at Novartis Central Technologies as lab head for the in-silico design of combinatorial compound libraries, as well as led the Molecular and Library Informatics Group in the Novartis Center of Proteomic Chemistry in Basel from 2002 to 2012. LabRoots will host the webinar December 7, 2016, beginning at 9:00 a.m. PT, 12:00 p.m. ET. To learn more about this event, or to register for free, click here. About DiscoverX DiscoverX Corporation, headquartered in Fremont, CA, USA, is a leader in the design, manufacture and sale of biochemical and cell-based assays for the drug discovery & life science markets. This industry-leading portfolio of products and services, under the KINOMEscan®, PathHunter® and BioMAP® brands, are used to aid life science research and enable rapid development of safe and effective biologic and small molecule drugs, by improving research productivity, effectiveness of screening, lead optimization & bioanalytical campaigns, as well as providing predictive tools that deliver physiologically relevant insights on drug molecules from early discovery through pre-clinical development. DiscoverX embodies an innovative approach to creating life science tools that have been widely adopted across the globe in pharmaceutical, biotechnology and academic laboratories. About LabRoots LabRoots is the leading scientific social networking website and producer of educational virtual events and webinars. Contributing to the advancement of science through content sharing capabilities, LabRoots is a powerful advocate in amplifying global networks and communities. Founded in 2008, LabRoots emphasizes digital innovation in scientific collaboration and learning, and is a primary source for current scientific news, webinars, virtual conferences, and more. LabRoots has grown into the world’s largest series of virtual events within the Life Sciences and Clinical Diagnostics community.

Biswas S.,Bhabha Atomic Research Center | Prabhu R.K.,Chemistry Group | Hussain K.J.,Bhabha Atomic Research Center | Selvanayagam M.,Loyola College | Satpathy K.K.,Bhabha Atomic Research Center
Environmental Monitoring and Assessment | Year: 2012

Concentrations of Cu, Mn, Zn, Fe, Cr, and Pb were estimated using ICP-MS in nine commercially important and locally consumed fish species (Sarda orientalis, Scomberomorus commerson, Rastrelliger kanagurta, Sardinella longiceps, Paraplagusia bili-neata, Cynoglossus lida, Cynoglossus macrostomus, Lepturacanthus savala, and Siganus javus) collected from coastal waters of Kalpakkam, eastern part of India. Their concentration (μg g -1) in the examined fish species ranged as follows: Cu (0.8-6.5), Zn (14.3- 27.9), Mn (0.5-8.8), Fe (17.6-117.0), Cr (0.24-1.78), and Pb (0.18-2.29). Concentrations of most of the metals in the fish species studied were found to be safe for human consumption barring Mn. © Springer Science+Business Media B.V. 2011.

Sekhar K.V.G.C.,Chemistry Group | Rao V.S.,Chemistry Group | Kumar D.,Chemistry Group
Bulletin of the Korean Chemical Society | Year: 2011

1,2,4-Triazoles and quinoxalines were found to display various pharmacological activities. Hence a series of 1- aryl-4-methyl-1,2,4-triazolo[4, 3-a]quinoxalines were synthesized. Due to various advantages of organic reactions under solvent-free conditions these compounds were developed using iodobenzene diacetate under solvent-free conditions. The synthesized compounds were characterized by elemental microanalysis, infrared spectroscopy, 1H NMR, 13C NMR and HRMS. All the synthesized compounds were investigated for their antitubercular activity and 5g was found to the most active compound.

van der Veen A.M.H.,Chemistry Group
Accreditation and Quality Assurance | Year: 2015

ISO/REMCO, the Committee on Reference Materials of the International Organisation for Standardisation, has revised ISO Guide 33. In doing so, the document now provides a more comprehensive coverage of the mainstream applications of reference materials (RMs) and certified reference materials (CRMs). Unlike its predecessor, the new ISO Guide 33 now also covers calibration as one of the uses and aspects of preparing calibration RMs from pure materials, as done in many testing laboratories. These aspects were felt to be missing in guidance to laboratories. The Guide is now well aligned with the Guide to the Expression of Uncertainty in Measurement and its supplements. Many applications of RMs and CRMs in particular require the evaluation of measurement uncertainty or have an impact on it. Last but not least, the Guide also contains a specific clause dealing with the various aspects of selecting an RM for a particular purpose. © 2015 Springer-Verlag Berlin Heidelberg

Goren A.C.,Chemistry Group
Records of Natural Products | Year: 2014

Stachys genus is one of the largest genera of the Labiatae (Lamiaceae) family and is widely distributed across Europe and East Asia, as well as in America. In this study the essential oil composition and consumption pattern of Stachys species as food are discussed. A survey of the literature found that the genus was consumed primarily as teas and that this was due to their essential oil and phenolics contents. Some species of the genus are also consumed in Europe and China as a carbohydrate source. © 2014 ACG Publications. All rights reserved.

Rajeswari S.,Chemistry Group | Antony M.P.,Chemistry Group | Vasudeva Rao P.R.,Chemistry Group
Journal of Radioanalytical and Nuclear Chemistry | Year: 2015

An unsymmetrical diglycolamide namely N,N, didodecyl-N′,N′-dioctyl diglycolamide developed in our laboratory is evaluated for its hydrodynamic suitability by determining the changes in its physical properties such as density and viscosity as a function of temperature and compared with those of tri n-butyl phosphate and N,N,N′,N′-tetraoctyl diglycolamide. The effect of irradiation on density, viscosity and interfacial tension, up to a dose of 1000 kGy are also measured. In addition, the activation energy for the viscous flow (Evis) were obtained for these pure solvents and their binary mixtures with n-dodecane in the temperature range 20–65 °C using the Andrade’s equation. © 2015 Akadémiai Kiadó, Budapest, Hungary

Pilladi T.R.,Chemistry Group | Ananthasivan K.,Chemistry Group | Anthonysamy S.,Chemistry Group | Ganesan V.,Chemistry Group
Journal of Materials Science | Year: 2012

A novel method, based on the combustion of boric acid-sucrose xerogel was developed to synthesize nanocrystalline boron carbide powder. This xerogel was pyrolyzed at 1273 K. Boron carbide was obtained by heating this precursor at 1823 K. The yield of boron carbide was improved by the use of a novel graphite crucible designed for this purpose. The xerogel and the precursor were characterized by using Fourier transform infrared spectroscopy. The constituent phases were identified by using X-ray diffraction while their elemental composition was established with the help of chemical assay. The microstructure of the final product was examined with the help of scanning electron microscopy and transmission electron microscopy. This study demonstrates that the yield of boron carbide would be enhanced to about 48% while the free carbon content in the final product could be reduced to about 6 wt%. These are significant improvements over similar studies reported so far on the gel-based preparation of boron carbide. © Springer Science+Business Media, LLC 2011.

Wang Y.,Hebei University of Technology | Yue Y.,Chemistry Group | Li H.,Hebei University of Technology | Zhao Q.,Hebei University of Technology | And 2 more authors.
Photochemical and Photobiological Sciences | Year: 2011

Novel core-shell composites have been developed by immobilization of non-luminescent europium(iii) complexes onto the surface of silica shells that are coated on the surface of luminescent dye-loaded zeolite L nano-crystals. The obtained core-shell composites were used for the ratiometric detection of dipicolinic acid (DPA) molecules. The dyes located in the channels of the zeolite L host are protected from any interaction with the environment of the particles and therefore provide a stable reference signal which can eliminate the need for instrument-specific calibration curves for DPA quantification in an analyte. © The Royal Society of Chemistry and Owner Societies 2011.

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