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first_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Citation: Can PUMA Really Transform Urban Transportation? (2009, April 7) retrieved 18 August 2019 from Manipulation of molecule protects intestinal cells from radiation This is GM’s attempt at an alternative vehicle? Explore further ( — With a June 1 deadline for settling its differences with creditors and unions looming for GM, the American automaker unveiled a joint project with Segway. Segway, the personal motorized scooter and a general source of amusement, is developing a two-seater with GM. The plan is to create an inexpensive mode of “urban transportation”. The new vehicle will be called PUMA — Personal Urban Mobility and Accessibility.The idea is interesting: A tiny, 600-pound vehicle that seats two (and has two main wheels). It is supposed to be powered by batteries, so emissions will be low. However, this urban transport device is strictly for city driving only; it’s top speed is about 35 miles per hour. You should be able to go 35 miles on a single three-hour charge that is estimated to cost about 35 cents. There seems to be a recurring theme…PUMA is not going to be released anytime soon, though. Segway and GM are aiming for a 2012 release of the product, which will come equipped with GM’s OnStar service. This service isn’t meant just to automatically contact OnStar in the event that your tiny PUMA is mangled. PUMA — according to GM and Segway — will be designed with OnStar help to prevent collisions and avoid congested routes. GM is actually claiming that PUMA will offer “autonomous driving and parking”.Of course, GM has to get through its current problems before it can move on. However, if GM is hanging its future hopes on PUMA as its main “alternative” vehicle offering, perhaps the company should just give up. After all, there are already scooters, mopeds and bicycles that already do what the PUMA can. Although, in defense of the PUMA, it does appear that it would be more comfortable on a rainy day.More information:© 2009 PhysOrg.comlast_img read more

first_imgThis chart shows the color temperature of sunlight at different times of day, along with the color temperatures of various lighting devices: candles, incandescent bulbs, mercury lamps, fluorescent tubes, LEDs, and the new sunlight-style OLEDs. Image credit: Jou, et al. Citation: OLED Tunes its Colors for Sunlight-Style Illumination (2009, July 16) retrieved 18 August 2019 from Universal Display First to Achieve 30 Lumens Per Watt White OLED Explore further This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. ( — Scientists have developed a lighting device that can change its color temperature throughout the day, matching the natural daylight chromaticities produced by the sun. Currently, no other type of lighting device is capable of producing this wide a span of sunlight-style illumination, which could make the new technology an attractive future high-quality lighting source. The developers, from National Tsing Hua University in Hsinchu, Taiwan, have designed an organic light-emitting diode (OLED) whose color temperatures range between 2300 and 8200 K, fully covering those of daylight at different times and regions. The color temperatures are controlled by varying the applied voltage to the device. By providing a natural outdoor light, the device could have an especially strong effect on human psychology and creating a more natural looking environment.As the researchers explain, no other single lighting device can exhibit daylight-like emission with a color-temperature range that covers the entire spectrum of sunlight (2500 K – 8000 K). This breaks down to 2500 K at dawn, 3250 K at dusk, and 5500 K at noon or 8000 K at noon in high-latitude regions. Currently, lighting devices have different color temperatures that make them resemble a specific time of day; for example, the color temperature is 2000 K for candles, 2700 K for incandescent bulbs, 2500-3000 K for warm-white fluorescent bulbs, and 4000-5000 K for cool-white fluorescent bulbs. Some white LEDs can cover a wider – but still limited – range of color temperatures, but require a complicated structure.The sunlight-style OLEDs demonstrated here have a relatively simple design, consisting of layers just a few nanometers thick of various color-emitting materials, as well as an electron-transporting layer and an electron-injection layer. As the researchers explain, changing the voltage varies the color temperature by increasing the number of electrons and holes transported between certain layers. For example, at 3 volts, the illumination is predominantly red, at 5.5 volts it turns to pure white, and at 9 volts becomes bluish white. The scientists also experimented with devices using slightly different layer thicknesses for comparison.“The daylight color and its corresponding color temperature is currently manually controlled for the prototype,” Professor Jwo-Huei Jou of National Tsing Hua University told “A simple driver-IC can be used to automatically modulate its applied voltage to give any desired color temperature between 2300 and 9000 K at any designated time.”Besides having a wide color temperature span, the OLED device also emits high luminescence at relatively low applied voltages, and can cover large areas with the potential for flexibility. With these advantages, the color temperature tunable OLED could one day provide a possible alternative for the replacement of incandescent and fluorescent bulbs and even LEDs, especially if the OLEDs can be made as efficient as previous research suggests they can be. “Our future plans are to use phosphorescent in lieu of fluorescent materials to enhance the device efficiency and to investigate the color temperature effect on plant and animal growth,” Jou said. “Of course, we mostly hope to have some lighting devices made so that people in northern countries can have sun-like daylight even in winter time.”More information: Jwo-Huei Jou, et al. “Sunlight-style color-temperature tunable organic light-emitting diode.” Applied Physics Letters 95, 013307 (2009).Copyright 2009 All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of read more

first_img More information: Q.H. Song and H. Cao, “Improving Optical Confinement in Nanostructures via External Mode Coupling,” Physical Review Letters (July 2010). DOI:10.1103/PhysRevLett.105.053902 . New nano color sorters from Molecular Foundry Citation: Confining light for use in nanophotonic devices (2010, August 15) retrieved 18 August 2019 from Explore further Copyright 2010 All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of Cao is a scientist at Yale University, and she explains that the biggest issue with creating nanoscale photonic devices to replace electronic devices, as in optical interconnects, is that the light won’t stay confined on the nanoscale. “The photons leak out quickly, so there has to be a way to keep them in place so that there is enough time for them to perform functions. It is also necessary to make small light sources, such as nanolasers on chips,” she says.In an effort to move nanophotonic devices a step closer to realization, Cao and Q.H. Song, also at Yale, worked out a way that it might be possible to confine light in nanostructures. Their work is described in Physical Review Letters: “Improving Optical Confinement in Nanostructures via External Mode Coupling.””Consider two modes, both of which are pretty leaky,” Cao explains. “There is an A mode and a B mode. These two modes can be couple so that mode A gives part of its leakiness to mode B. Mode A becomes less leaking, while mode B becomes more leaky. As a result, you have efficiently increased the lifetime of mode A.” The increase in the lifetime of one of the modes in this coupling provides just what is needed to create a situation in which the light is confined. “It is no longer leaking out as much for light in mode A, and there is more time for functions to be performed,” Cao says. She also points out that this type of external coupling has been successful in other fields. “It’s somewhat fundamental, and once you have the ability to keep light in a nanostructure, it becomes possible to contemplate smaller photonic devices with speed capabilities beyond our current electronic devices.”So far, Cao and Song have only presented their ideas in the form of numerical simulations. “We don’t have experimental results yet, but our extensive numerical calculations indicate that this should be possible, and a similar concept has been used in other fields, such as resonance trapping in atomic and molecular physics. However, this approach has not been used in nanophotonics yet.”Cao thinks that the main obstacles to experiments with this idea include fine control over nanostructures, as well as access to the proper facilities. “There is a challenge in fine control of nanostructures, but the technology does exist to overcome this,” Cao says. “Mainly we are looking for access to the kinds of facilities that can fabricate the type of structure we propose. I think this kind of structure can be made using nanofabrication technology, with the right set up.”As long as an experiment can be performed to back up the numerical simulations performed by Cao and Song, there is a chance that this technique could help advance the use of nanophotonic devices. “It’s kind of novel, the way we use fundamental physics to solve this problem,” Cao says. “It’s also realistic, and something that could be used practically in the advance of nanotechnology.” “There is a strong drive to make smaller and smaller devices,” Hui Cao tells “However, there are limitations to what we can do. We want faster devices than what we can get from electronics, so we are looking to photonics. Unfortunately, photonics, while having the potential to be much faster, are larger in size. Devices using electrons are smaller, on the nanoscale, while photonic devices are still on the microscale-defined by the wavelength of light.” This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

first_img “The Chromium revision log indicates that Chrome for Android will become a mobile browser that integrates much of desktop browser’s feature set, which will help Google to patch bugs and security issues much faster than before. The Android browser could also see more updates in the future and evolve at a much faster pace,” said ConceivablyTech.Numerous other sites have since commented on the probability, not possibility, of Chrome made available as a browser for Android some time soon. Google watchers think that the Chrome-Android union might be part of the upcoming Samsung and Google joint event next week. An announcement is expected about an Ice Cream Sandwich (the next major Android update and the first version of Android to unify the phone and tablet parts of the OS) Android phone. Chrome for Android is expected to include features seen on the desktop version. Based on latest reports about Chrome in general, the browser is fast taking hold. Google’s Chrome browser could surpass Mozilla Firefox before the year end or by the middle of next year, predict browser stat-watching groups. While the popularity of Chrome for the desktop has grown as a browser that gets you where you want to go fast, the Android browser has underwhelmed Android users. Chrome for Android raises hopes that the result will be better unity and synchronization between Google’s desktop and mobile browsers. The advantages are summed up by Mobile.Blorge:”As a Chrome user on my own desktop PC, I can certainly see the appeal of using the same browser on mobile devices, partly because I trust it not to lead to crashes and freezes (even more important on a low-memory device), and partly because the synced bookmarks and user ID details would be incredibly convenient.”Emphasis in talk about Chrome coming to Android is on Chrome as a “first version,” which is expected to be simple and focused on speed. Chrome unseats Safari as third most popular Internet browser This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. ( — The first version of Chrome for Android should be just around the corner, according to ConceivablyTech. “Google is heading toward the finish line for the first release of Chrome for Android,” said the report. The information points to a developer posting on the Chromium site, where a build target was set for the browser. Chromium is the open source project on which the Google Chrome browser is based. © 2011 Citation: Bringing Chrome to Android more than wishful thinking (2011, October 5) retrieved 18 August 2019 from Explore furtherlast_img read more

first_img More information: Foundation readies $25 computer to seed tech talents This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. © 2011 Explore furthercenter_img ( — No long lines winding down Madison Avenue; no marching bands in Barcelona; no glossy ads in mainstream magazines. Just news of a product available for pre-order is all it took to trigger a crush of responders and to sell out the long awaited, credit-card sized computer with a $35 pricetag. The Raspberry Pi computer sold out in hours on Wednesday, after sites distributing the product witnessed unprecedented traffic. Citation: Distributors reel from Mad Wednesday rush for $35 Pi (2012, March 1) retrieved 18 August 2019 from According to the Financial Times, one of the two device distributors, Premier Farnell, reported half a million hits in 15 minutes, The other distributor, RS Components, said they had never before witnessed that level of demand for any one product at one go.What’s the big deal? Those following the rise of the Raspberry Pi say the answer is not only price but principle. Developed by the Raspberry Pi Foundation in the UK, the miniature PC is intended to eventually become an affordable mainstay for schools to use, to expose children and youths to programming and command lines rather than just touchscreens and in-store apps.Wednesday’s opening offer for pre-orders is actually for a developer release. The Foundation aims to build a community of developers who can write software for the device before they issue the school-targeted product, priced even lower, at $25, which will be available at a later date.In the UK, the Foundation efforts are widely applauded and not only for aiming to educate youth. Some observers think the mad rush for the devices reflect a backlash trend toward old-school hobbyist programming among those tired of showroom computer bling.The Raspberry Pi, based on the ARM chip, does not come with monitor or keyboard; it is a bareboned PC on a naked circuit board with connectors. The Raspberry Pi is designed so that it can plug into a TV and a keyboard. The computer supports Python, a suitable programming language even for novices. The device runs Linux. (Its first proof of concept is based on Debian but a Fedora ARM secondary architecture project has a Fedora Linux distribution for ARM-based devices. The Fedora version is the work of faculty and students at Seneca College, Canada, where they configured and optimized it to work with the Raspberry Pi.)The chips and connectors allow users to connect cameras and other gadgets via USB, and can deal with high-definition video and sound. More specifically, the device has a 700MHz processor, 256MB of RAM, SD card support, two USB ports, an Ethernet hookup and HDMI and RCA outputs.“Although we are still waiting for units to arrive from China, you can start buying the Raspberry Pi today,” announced the foundation site.They entered into licensed manufacture partnerships with the two British companies, Premier Farnell and RS Components, and the two will be manufacturing and distributing the devices on behalf of the foundation. Each Raspberry Pi sold will generate a small profit for the foundation, which it will put back into the charity.The foundation’s web site also sought to explain on Wednesday that both distributor websites were experiencing heavy load and that international customers may find that Raspberry Pi was not yet available in their areas. The foundation asked for patience and to check back.last_img read more

first_imgUnderstanding why green wave breakdown occurs may improve the green wave synchronization strategy and improve traffic flow in urban areas. Citation: Physics of ‘green waves’ could make city traffic flow more smoothly (2013, May 22) retrieved 18 August 2019 from Kerner’s paper, “The physics of green-wave breakdown in a city,” is published in a recent issue of EPL.Many large cities around the world, especially in Europe and the US, synchronize traffic lights on the busiest streets to create green waves. When a green wave works as intended, all vehicles within the wave can drive through a sequence of green traffic lights at a certain speed without having to stop at the signals. The timing of the lights can be controlled either by sensors or timers, and can be set up for traffic in one direction or both directions. Green waves have several benefits, such as allowing for higher traffic loads, reducing traffic jams, controlling traffic speed, reducing fuel consumption and emissions, and facilitating bicycle and pedestrian traffic.The biggest disadvantage of green waves is that, when the wave is disturbed, the disturbance can cause traffic problems that can be exacerbated by the synchronization. In such cases, the queue of vehicles in a green wave grows in size until it becomes too large and some of the vehicles cannot reach the green lights in time and must stop. This is called over-saturation. As more and more vehicles stop, the traffic can cause a gridlock where vehicles can’t move forward even when the light turns green because vehicles are backed up at the light ahead, which may still be red or turning green at the same time.The physics of this green wave breakdown has not been thoroughly studied until now. In his paper, Kerner used two kinds of models to investigate the underlying mechanisms. He identified several general features of green wave breakdown that are independent of the traffic flow model used, and also discovered that the physical characteristics of green wave breakdown depend crucially on which model is used. In one model, called a three-phase model, green wave breakdown occurs due to an initial speed disturbance (for example, a car turning onto the main road from a side street) that causes a moving synchronized flow pattern (MSP). In an MSP, vehicles move slower than in the initial free flow of green wave, causing delays that destroy the green wave synchronization with the traffic lights. The result is oversaturated traffic at the traffic signals.In the other model, called a two-phase model, an initial speed disturbance does not cause an MSP and the delays associated with MSPs. However, if the initial speed disturbance is large enough, and there is a large number of vehicles in the wave, then oversaturation and green wave breakdown can still occur. In both models, Kerner found that one or more phase transitions are involved in the breakdown process. Also, breakdown occurs with a certain probability of less than 1; in simulations runs with the same parameters, breakdown occurs at some times but not at others.While the models offer a theoretical explanation of how green wave breakdown may occur, experimental tests are needed to gather data and determine which model best fits the data. Kerner hopes that an empirical test will be performed in which the vehicle speed and flow rate are measured both upstream and downstream of a synchronized traffic signal. By studying speed disturbances and the possible emergence of MSPs, researchers could then determine the initial disturbances and how they lead to green wave breakdown.”This would be a very interesting test for an EU project,” Kerner told “However, as far as I know, there are no EU programs for such empirical studies of signal control. The problem is that my theory contradicts all classical theories of urban traffic, which, as is well known, do not work in the real world.” What causes traffic gridlock? More information: Boris S. Kerner. “The physics of green-wave breakdown in a city.” EPL, 102 (2013) 28010. DOI: 10.1209/0295-5075/102/28010 Explore furthercenter_img © 2013 All rights reserved. Journal information: Europhysics Letters (EPL) ( —If you’ve been lucky enough to catch all the green lights as you drive down a busy street, you may have been benefiting from intentional synchronization called a “green wave.” The green wave concept has been around in the US since the 1920s, but it doesn’t always work as it should. When traffic gets backed up for some reason, “green wave breakdown” occurs. In a new paper, physicist Boris Kerner at the University of Duisburg-Essen in Essen, Germany, has modeled and analyzed the causes of green wave breakdown, and the results may lead to better coordinated green waves and more efficient traffic flow. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

first_imgWhen an exciton (blue spot) moving along a nanotube collides with a zero-dimensional state (red spot), the exciton decays radiatively by emitting a photon. Here, the scientists generated local zero-dimensional states by doping the nanotubes with oxygen atoms. Credit: Yuhei Miyauchi, et al. ©2013 Macmillan Publishers Limited More information: Yuhei Miyauchi, et al. “Brightening of excitons in carbon nanotubes on dimensionality modification.” Nature Photonics. DOI: 10.1038/NPHOTON.2013.179 The researchers, Yuhei Miyauchi, et al., have published their paper on modifying the dimensionality of carbon nanotubes in a recent issue of Nature Photonics.Under an applied electric current or light irradiation, excited electrons and holes (positively charged locations where electrons are missing) are created, and carbon nanotubes emit near-infrared light. In this process, excited electrons and holes form bound states called excitons, and a photon is emitted due to the recombination of an electron and a hole during this process. As the researchers explain, a nanotube’s brightness, or luminescence quantum yield, is determined by the balance between the radiative and non-radiative decay rates of its excitons. In nanotubes, non-radiative decay dominates, resulting in low luminescence. Previous research has shown that this non-radiative decay is mainly due to the rapid collision between excitons and nanotube defects, which quench, or suppress, the excitons. Efforts have been made to reduce the defect quenching of the excitons, with varying success.However, not all defects quench excitons. As the scientists explain, defects with certain electronic structures can capture excitons and convert them into photons with a very high radiative decay rate, possibly even higher than the excitons’ intrinsic rate. These beneficial defects function as zero-dimensional states, and the scientists saw them as an opportunity to improve nanotube luminescence.In experiments, the researchers sparsely doped the carbon nanotubes with oxygen atoms, which act as zero-dimension-like states embedded in the one-dimensional nanotubes. They found that, at room temperature, excitons in the zero-dimension-like states can achieve a luminescence quantum yield of 18%, an order of magnitude larger than the 1% value of those in one-dimensional nanotubes. The researchers attribute this improvement to mechanisms that reduce the non-radiative decay rate and enhance the radiative decay rate, and predict that the luminescence could be further improved. Journal information: Nature Photonics Explore further Citation: Light-emitting nanotubes get brighter with zero-dimensional states (2013, July 23) retrieved 18 August 2019 from Advances in the understanding of how carbon nanotubes move charges created by light © 2013 All rights reserved. “We think that the luminescence can be further increased if we can find a better local atomic structure of an artificial zero-dimensional state,” Miyauchi, a researcher at Kyoto University and the Japan Science and Technology Agency, told “At this point, our zero-dimensional state has a lower lying dark state just below the bright state, which results in about 50% reduction of the quantum yield at room temperature. If one can find a better local structure, we expect that it may be possible to remove this dark state below the bright state. Then, we expect further increase of the luminescence yield of excitons in the local state.”In the future, the researchers hope that the results will stimulate further investigation of zero-dimensional—one-dimensional hybrid systems, regarding applications as well as the fundamental physics behind the systems.”We plan to develop a more sophisticated technique to generate only one zero-dimensional state in a single suspended carbon nanotube connected to electrodes, which is necessary to develop a real near-infrared single-photon emitter operable at room temperature using carbon nanotubes,” Miyauchi said. “We also plan to try to achieve lasing using this material. Although it has been considered to be very difficult to achieve lasing using carbon nanotubes as gain media because of the very rapid non-radiative decay due to rapid collisions between excitons under a strong excitation regime, we believe that it would be possible using zero-dimensional states in carbon nanotubes, because excitons in zero-dimensional states would avoid collision with other excitons.”Our findings could also lead to the fabrication of all-carbon near-infrared LEDs or lasers. Near-infrared light sources are very important for telecommunications using optical fibers. One usually needs minor metals such as In, Ga, and As, to fabricate light emitters for this wavelength range. If one can make efficient light sources using only abundant carbon and without any minor metals, it would be very nice from the viewpoint of the resource problem.”We are also very interested in the fundamental physics in these nice hybrid low-dimensional nanostructures, and we will explore another more interesting physics in them that possibly emerges from the interactions between the states with different dimensions in the same nanostructures.” Carbon nanotubes have the potential to function as light-emitting devices, which could lead to a variety of nanophotonics applications. However, nanotubes currently have a low luminescence quantum yield, typically around 1%, which is restricted by their one-dimensional nature. In a new study, scientists have demonstrated that artificially modifying the dimensionality of carbon nanotubes by doping them with zero-dimensional states can increase their luminosity to 18%. The findings could lead to the development of nanophotonics devices such as a near-infrared single-photon emitter that operates at room temperature. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

first_img More information: Generalist-specialist trade-off during thermal acclimation, Royal Society Open Science, rsos.royalsocietypublishing.or … /10.1098/rsos.140251 As it appears we humans are not likely to alter the course of global warming, at least any time soon, scientists continue to study other animals to try to ascertain how they might fare in an increasingly uncertain climatic future. In this new effort, the researchers chose to focus on mosquitofish because they have a reputation of being able to acclimate to changes in their environment. The fish were introduced into Australia in 1925, in hopes that they would help reduce the mosquito population. Since then they have come to inhabit waters all across the country, due to their uncanny ability to acclimate to water temperature differences and are now considered a pest.To learn more about the acclimation abilities of the fish, the team captured specimens from a well studied site with known temperature variations, and placed them in tanks of water of varying degrees, from 20 to 30 degrees centigrade and tested their ability to acclimate by creating an artificial stream, also of varying degrees and noting how well they swam against it. Analysis of the data revealed that some specimens were much better at acclimating to warmer temperatures than others, offering a clue as to how the fish species was able to spread so successfully. But the data also showed that despite their hardy reputation, the fish that were able to acclimate to colder water were not able to do so for warmer water, which suggests that such fish will likely fare poorly as average temperatures in their environment increase over the next century—because of the difficulty in acclimating to more extreme fluctuations in temperature.The team says their findings likely apply to other species as well, and theorize that as the world grows warmer, animals that live in colder climates are likely to experience more difficulty acclimating than will those that live in warmer places, particularly cold blooded species. Polar Bear (Ursus maritimus) near Kaktovik, Barter Island, Alaska. Credit: Alan Wilson/Wikipedia. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Shape up quickly—applies to fish, too (—A study conducted by a quartet of researchers from the University of Sydney, Université de Lausanne and the University of Glasgow has led to findings that suggest cold climate animals are more likely to suffer adverse impacts due to global warming than are animals that naturally live in warmer parts of the world. In their paper published in the journal Royal Society Open Science, the team describes how exposing mosquitofish to various temperature changes showed its ability to acclimate to changes in its environment and why the team believes such findings likely apply to other species as well.center_img Journal information: Royal Society Open Science © 2015 Citation: Study shows cold climate animals may suffer as global temperatures rise (2015, January 21) retrieved 18 August 2019 from Explore furtherlast_img read more

first_imgCredit: M. Malischewski Newly created ‘sandwich rings’ could lead to better computers © 2016 Explore further This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. More information: M. Malischewski et al. Isolation and structural and electronic characterization of salts of the decamethylferrocene dication, Science (2016). DOI: 10.1126/science.aaf6362AbstractFerrocene and its decamethyl derivative [Cp*2Fe] are the most common standards for nonaqueous electrochemical investigations because of their well-defined and only mildly solvent-dependent reversible Fe(II)/Fe(III) redox couple. Higher oxidation states have only rarely been studied. We report the isolation and crystallographic and spectroscopic characterization of surprisingly stable Fe(IV) salts of the [Cp*2Fe]2+ dication, produced by oxidation of [Cp*2Fe] with AsF5, SbF5, or ReF6 in neat sulfur dioxide as well as [XeF](Sb2F11) in neat hydrogen fluoride. The Sb2F11– salt exhibits a metallocene with the expected mutually parallel arrangements of the Cp* rings, whereas the As2F11–, AsF6–, SbF6–, and ReF6– salts manifest tilt angles ranging from 4° to 17°. Both 57Fe Mössbauer spectroscopy and superconducting quantum interference device magnetization studies reveal identical d-orbital splitting with an S = 1, 3E ground state based on the 3d electronic configuration e2g3a1g1 of all [Cp*2Fe]2+ salts.center_img Journal information: Science Due to its instability, very little research has been done to characterize Fe(IV) compounds. Researchers from Free University Berlin and Fredrich-Alexander-University Erlangen-Nürnberg have demonstrated that pentamethylcyclopentadienide (C5Me5- or Cp*) acts as a strong π-donating ligand that creates a stable Fe(IV)-containing compound. This ligand may serve as a model for investigating higher oxidation states for other metals. This work is published the recent issue of Science.In most cases in which researchers have isolated a compound with an Fe(IV) oxidation state, the metal was coordinated to ligands that offer strong π-donor properties such as terminal nitrido and oxido ligands. These compounds are typically unstable and difficult to analyze. Malischewski, et al. were able to isolate the [Cp*2Fe]2+ dication as a salt with several different anions, allowing them to conduct crystal studies as well as electronic studies using SQUID and Mössbauer spectroscopy.To make the Fe(IV) organometallic salts, [Cp*2Fe] was combined with strong oxidizers (AsF5, SbF5, ReF6, [XeF](Sb2F11)) in either sulfur dioxide or hydrogen fluoride. The resulting salts were isolable and analyzed.The crystal structures of each of the salts showed slight differences in the way the Cp* ring was tilted, which the authors attribute to the identity of the counterion. The rings displayed no tilt with Sb2F11- and tilts ranging from 4.17o for As2F11- to 16.56o for SbF6-. The large anions with eleven fluorides seem to promote little ring tilt while the smaller anions with six fluorides promoted a more pronounced tilt. This may be due the stronger interactions of the polarized cation with the smaller anions, which possess higher charge densities. All of the structures showed hydrogen bonding between methyl and fluorine and a large distance between fluorine and iron. The hydrogen bonding between the methyl and fluorine is more pronounced in the smaller anions and may be another contributing factor to the observed ring tilting. Notably, the Fe-C bond lengths were much longer than the Fe-C bonds in its lower oxidation states. SQUID studies showed that the compounds possess effective magnetic moments of slightly over 3 µB, indicative of two unpaired electrons. The temperature dependencies of the magnetic moments further suggest the presence of considerable spin-orbit interactions. Additionally, Mössbauer spectroscopy studies correlate with the obtained structural parameters and indicate an oxidation state of +4. Both techniques suggest a d-orbital ordering similar to that of ferrocene. This means that the ordering changes two times in a stepwise fashion going from Fe(II) to Fe(IV).This research provides interesting insights into a stable Fe(IV) metallocene. Further research may include possible applications of [Cp*2Fe]2+ salts as well as studying other metals with multiple oxidation states. Citation: Isolation of Fe(IV) decamethylferrocene salts (2016, August 29) retrieved 18 August 2019 from (—Ferrocene is the model compound that students often learn when they are introduced to organometallic chemistry. It has an iron center that is coordinated to the π electrons in two cyclopentadienyl rings. (C5H5- or Cp). Ferrocene is often used as a standard in electrochemical experiments because of its characteristic reversible oxidation of Fe(II) to Fe(III).last_img read more

first_img by NPR News Tom Goldman 8.23.19 5:00am The University of Alabama’s Crimson Tide have won five national championships in the past 10 years. “That’s too many!” shout the haters, who especially love to pillory Alabama’s stern head coach Nick Saban. But in Alabama — and especially the team’s hometown of Tuscaloosa — there’s mostly devotion.A new college football season begins Saturday, and for the Crimson Tide, there is a renewed sense of mission. In last season’s national championship game, Alabama got walloped by rival Clemson. With a new season upon us, Saban and his team are determined to, as he likes to say, “not waste a failure.”A season approaches It’s a sweltering mid-August morning in Tuscaloosa, and the Alabama campus is largely deserted. Bryant-Denny stadium is empty, but you can hear a football season approaching.T-shirts are already stained with sweat as members of the Alabama marching band drumline rip their way through morning practice.Five, six, seven, eight…one, two, three, four, five, six, seven, eight. Band members count off as they move in formation without drums. Once the drumming starts, the rat-a-tat sound reverberates for blocks. This morning session is the first of three. That’s right: three-a-days for the group known as the Million Dollar Band.Hit your notes. Hydrate. Roll Tide!On the same morning, business is bustling at the Waysider. It’s the city’s famous Alabama football-themed restaurant where a small black chalkboard out front marks the number of days ’til the next kickoff.Inside, the walls are crowded with photos and paintings of players and coaches. Diners order from a menu with “Breakfast of Champions” written on the front. Including a woman whose striped shirt and lipstick match the school colors.”Every day you need to wear a little bit of crimson,” says Mary Jo Mason, a real estate professional who has lived in Tuscaloosa for 51 of her 78 years. She’s been a season-ticket holder for all 51 years and has cheered many national championships. Under the legendary Alabama head coach Bear Bryant, and since 2007, Nick Saban.Mason is buzzing about the upcoming season.”We’re riding high,” she says. “We have a great recruiting class and nobody ever questions Saban’s ‘process.’ And we’re looking forward to being in the [college football] playoffs and going into the national championship which is in New Orleans this year.”Indeed, for ‘Bama fans, heading into a new season these days isn’t a question of ‘how will we do?’ It’s more, who are we going to play for the title?Amidst her optimism, Mason doesn’t mention last season’s Clemson game. When asked to consider the national championship drubbing, Mason says she doesn’t have revenge on her mind.”I don’t care who we have [as a title game opponent],” she says, adding, “I just want to win the national championship. [Beating Clemson] should not be our focus. Our focus is us, and what we have to do to get there.”She sounds a lot like the head coach she reveres.”I felt like I personally needed to do a better job of keeping people focused,” Saban said a few hours later. He was talking about what he learned from the 44-16 beat down by Clemson.”I think one of the most difficult things is for the players to stay focused on not the outcome, but what does it take to do to get the outcome.”Trusting the process That is the foundation of his success. Getting young men to do what’s required to accomplish a lofty goal. At Alabama, it’s called “the process” and it’s a hallowed term in Tuscaloosa, albeit a big vague.Ask what the process is exactly, and you get different answers. But you’re not wrong if you say the process involves accountability, coachability, effort, discipline. Doing things the right way so many times and with such little deviation that you can’t do it wrong.”We’ve had good players who buy into the things that we do here,” Saban says, “to help them be more successful as people, students and players. And it’s worked fairly well for us.”In his 12 years in Tuscaloosa, Saban’s won five national titles [he also won one coaching at LSU earlier in his career]; he’s got 141 wins against only 21 losses; and he’s had more players drafted into the NFL than any other coach. His recruits are regularly among the best in the country. But there’s another important factor that links Saban’s success to Bear Bryant’s decades ago.”The one way in which they’re alike is that they had 100% confidence in what they’re doing,” says sports writer Cecil Hurt. He’s covered Alabama football for the Tuscaloosa News since 1982.”But they also had the ability that very few people have,” Hurt continues, “to convey that confidence onto the people that they are leading. It’s one thing for you to be confident in yourself. It’s another thing for a room full of 18-to-21 year olds to be confident along with you.”After the Clemson loss, Saban didn’t lose confidence in the process. It just needed shoring up.”We didn’t have as good of accountability and preparation,” he says. “We have to have everybody put the team first. [And] those are all the things that we’ve tried to re-emphasize, to get our players to stay focused on.”The message has gotten through to players like senior defensive back Shyheim Carter.”People think just because we [are], you know, Alabama, we just going to walk in the stadium and win,” Carter says, adding, “it doesn’t work like that. We have to prepare just [like] everybody else, just [like] every other game.”Saban urges his players not to dwell on losses, or wins. But Carter says the Clemson defeat has come in handy.”When leaders on the team feel like practice is going sluggish,” he says, “they always say ’16 to 44.’ Remember that. And you know that kind of gives everybody an extra boost.”16 to 44. Alabama is first, even in defeat.Don’t waste time There was nothing sluggish about practice on this day. A loud horn sounded off when players were supposed to move to the next drill. Quickly. Saban was in the thick of it, wearing a straw hat with crimson-colored band, working with his defensive backs. He moved well, despite recent hip replacement surgery. That was in April. He was back at work within 36 hours of the operation.Saban doesn’t like to waste time.Indeed, before our interview, one of his assistants advised us not to meander with questions. Be direct. How will we know if it’s not working? His leg will bounce, we were told. Fast.Or maybe, we’ll get a snarl. Search “Saban rant” and YouTube is filled with clips of him yelling at practice or snarling at the media.There are moments of levity too. But those don’t always make it onto the highlight shows. We’re left with the snarl, which, in Alabama-unfriendly territory, has earned Saban nicknames like “satan” or the “Nicktator.”What does he think about his reputation as the dour leader of what’s been called a joyless juggernaut?”I don’t think that’s fair,” Saban says. “I think in this day and age it takes about 40 seconds for anything that you say or do to get out there publicly to be evaluated one way or the other. Obviously you can’t always please everybody but hopefully we can please the people in our organization and help them be more successful.”And, Saban says, they do have fun at Alabama.”It depends on how you describe fun. You know is it fun cutting up and doing crazy stuff that is not going to help you sort of be successful in the future? Or is [it] fun knowing you did your best to be the best you could be at whatever you choose to do? And that doesn’t mean you don’t laugh and enjoy yourself and the relationships that you develop while you’re doing it.”It also doesn’t mean it’s not hard.Saban is a perfectionist, which he says he got from “great” parents.”I worked for my dad in a service station,” he says, “and if you didn’t wash the car right you wash it again. If you didn’t do things the right way, you know there were consequences for it. So I guess it just became a part of how things are supposed to be done and need to be done for you to create any value for yourself and your future.”An admirable trait but it can be wearing on others. Saban certainly can be tough on his team. Thirteen assistant coaches have left Alabama in the past two years. They are in high demand, and many went to more prominent jobs, after having worked for a demanding boss.Former Crimson Tide offensive coordinator Michael Locksley told the Wall Street Journal, “Every day you walk in that building you better bring your ‘A’ game. My goal was to show up every day and not have Saban have to rip my butt.”There are seven new coaches this season, and a renewed dedication to the process. Will it be enough for a seventh national title, giving Saban the most of any college coach in history?A final answer won’t come until January, when Alabama may be playing for another championship. But don’t ask Saban about that now, eight days before ‘Bama’s opening game of the season against Duke. It would ignore “the process,” and for sure get that leg working overtime.Copyright 2019 NPR. To see more, visit NPR. Tide Rolls Back In: Alabama Hopes To Not Squander Last Year… Russell Lewislast_img read more

first_imgFriends of Music are back with their August edition and this time it will feature Hindi Rock band Punkh. The band incorporates distinct Indian elements with their metal and rock influence. They will be releasing their album Karmah at the Friends of Music platform. Trizya, a six-member fusion band from Delhi will be opening the stage for the evening. The band utilizes elements from jazz, Indian classical, rock and pop. Friends of Music are also bringing a cluster of musicians from Delhi to join Punkh on stage and make the evening a special one. Also Read – ‘Playing Jojo was emotionally exhausting’The list includes – Edwin Fernandes from Goatronikk, Karan Sharma, Indraneel Hariharan, Gyaan Singh and Sharat Chandra Srivastava from Mrigya, Rohit Menon from Vishnu, Ashwani Verma from Euphoria, Dilip Ramachandran from That 80’s Project, Surojit Dev, Prithvish Dev from Themclones, Amit Kilam, Himanshu Joshi and Rahul Ram from Indian Ocean, Chintan Kalra from Contraband and Manvi Gupta from Karwaah.Punkh’s new album Karmah comprises seven tracks with the title track setting the tone for the band’s new musical statement. Maahia with a sludgy guitar sound, Ghoom Le with its sitar-like drone in the beginning which is an instantly accessible slice of hook-laden modern rock and Insaan that rides on an insistent guitar riff are some of the band’s composition to watch out for. The album also features two heart touching ballads Tanhaa and Nasha.When: 22 AugustWhere: Blue frog, MehrauliTiming: 7.30 pmTicket Price: Rs 350last_img read more

first_imgIn a welcome move, the Supreme Court has advised the central government to make milk adulteration a punishable offence with punishment amounting to life imprisonment for anyone who indulges in the dubious practice. The apex court has suggested to the central government that the Food Safety and Standards Act be amended in the approaching winter session of Parliament and also said that the unethical practice should be completely curtailed in the states as well. If we look at some of the facts that the National Survey on Milk Adulteration 2011 brought forth we would be appalled to know that Indians are consuming water, detergents, urea, starch, glucose, caustic soda and formalin in the name of milk. Also Read – Working on improving tiesWhat is even more disturbing is the fact that these contaminants are not only being used to increase the thickness and viscosity of milk but are primarily being used as preservatives to help the milk being preserved for a longer time. States like Bihar, Chhattisgarh, Odisha, West Bengal, Mizoram, Jharkhand and Daman & Diu have a 100 per cent non conformity record with food safety standards. How can a reason as absurd as difference between demand and supply of milk be given to cover for the criminal act? If there is shortage of milk, it is due to the fact that milch cattle are kept underfed and in unsanitary conditions. There is no regulation to keep a check on the conditions that they survive in and the central and the state government’s should make it mandatory for cattle owners to feed them properly, clean their surroundings everyday and not let them roam as stray animals where they are stoned and are severely abused too. Also Read – Political parties and our RepublicPeople living in the tremendously expanding urban agglomerations have to bear the brunt of this menace in far greater numbers than their rural counterparts. This is an understood fact as milk producers in rural India practise active animal husbandry whether or not they are given any sort of incentive by the respective state or the central government. In urban areas on the contrary, the milk producing livestock is unabatedly exploited due to the demand that needs to be met. The apex court has rightly pointed out that the six months punishment mentioned in the Food Safety and Standards Act is grossly inadequate. The court had also earlier asked states to amend the law as has been done by Uttar Pradesh, West Bengal and Odisha. Even the Indian Council of Medical Research in a report published long back had mentioned that detergents, caustic soda, formalin and even water in milk cause food poisoning and gastrointestinal complications and that the other synthetic compounds cause impairments, heart problems, cancer and even death. The centre should act on its own accord and make the states fall in place too.last_img read more

first_imgKolkata: With October being the breast cancer awareness month, various organisations in the city and some hospitals have been organising programmes to highlight the importance of breast cancer awareness, education and research.A worldwide annual campaign involving thousands of organisations and people is conducted every year during this month. Various hospitals both private and state-run ones organise camps for early detection and treatment of the patients. Also Read – Rain batters Kolkata, cripples normal lifeA private hospital in Howrah commemorated World Breast Cancer Awareness Month by introducing ‘Accelerated Partial Breast Irradiation Treatment (APBI) via Interstitial Brachytherapy in Breast Cancer’ for the first time in the Eastern India. APBI treatment is newer, localised alternative that delivers the effective radiation does directly to thetissue at risk. This targeted therapy reduces treatment time and may limit adverse side effects, particularly those involving the heart and lungs. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedOne of the ways to give APBI is via Interstitial Brachytherapy catheters implanted at the time of surgery. When breast cancer is detected early, and if adequate diagnosis and treatment are available, there is a good chance of it being cured.According to World Health Organisation (WHO), there are about 1.38 million new cases and 4,58,000 deaths from breast cancer each year.Breast cancer is by far the most common cancer in women worldwide, both in the developed and developing countries. In low and middle-income countries, the incidence rate has risen steadily in the last few years due to increase in life expectancy, increase urbanisation and adoption of western lifestyles.last_img read more

first_imgKolkata: The Calcutta High Court on Tuesday refused permission to a woman to terminate her 26-week-old pregnancy on the ground of possible abnormality since the foetus has already developed most of its organs and that the mother’s life is not at risk. A medical board at the state-run SSKM Hospital has in a report to the court said the prognosis of the baby is likely to be better if it is delivered near term, i.e., the full term of pregnancy. Refusing permission to terminate the pregnancy, Justice Tapabrata Chakraborty noted that the report said it does not appear that the petitioner’s life will be in danger if her pregnancy is continued. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedThe medical board said test reports have suggested that the foetus is suffering from Down Syndrome, along with problems in the oesophagus, heart and abdomen. Down Syndrome is a genetic disorder that involves birth defects, intellectual disabilities and characteristic facial features and it often involves heart defects, visual and hearing impairments and other health problems. The severity of all these problems varies greatly among affected individuals. Also Read – Bose & Gandhi: More similar than apart, says Sugata BosePassing the order, Justice Chakraborty observed that the rights of the foetus need to be considered vis a vis the mental trauma the woman will suffer in giving birth to a child with abnormality. The woman had moved the high court on January 22 after several tests indicated these abnormalities in the foetus and doctors whom she consulted had advised termination of pregnancy, her lawyers Kallol Basu and Apalak Basu said. According to the Termination of Pregnancy Act 1971, permission of high court is required to abort a pregnancy which is 20 weeks or more old.last_img read more

first_imgWeddings preparations start months in adance and amidst all the running around markets, the bride forgets to take care of herself. However this winter, make sure you are following some simple rules to shine even on a hectic day. Celebrity makeup artist Namrata Soni and Dermatologist Rashmi Shetty has come to the rescue of all brides-to-be with essential beauty and skincare secrets for the best bridal look this wedding season.4Don’t forget to moisturize: Winter weather is not fun for skin. Cold weather and low humidity levels result in dry air, which then steals moisture leaving the skin dry and lifeless. If you’re more prone to dry skin, using a good moisturizer suitable for your skin type is essential. Additionally, homemade hydrating masks can also provide moisture in the winter months. Also Read – Add new books to your shelfAdding natural moisturising ingredients like honey, avocado, yogurt, olive and jojoba oils, almond oil, bananas, and aloe to the mask will help you experience smooth and soft skin instantly. Also, make sure you remove all your make-up before going to bed and apply a hydrating cream as it helps the skin breathe and gives it some much-needed nourishment and rejuvenation.4Exfoliation is crucial: During winters, our skin tends to dry faster requiring regular exfoliation, hence it’s recommended that one uses an “at-home” method for this. Take a product that is enriched with body butters and glycerin. Also Read – Over 2 hours screen time daily will make your kids impulsive4Stay hydrated and eat healthy: Every bride wants to look her best on her wedding day to get snapped in those picture-perfect moments. To get that healthy, dewy glow, drinking plenty of water is essential as it not only hydrates your body but also flushes away unwanted toxins.Besides plenty of water, eating healthy food is also crucial. In addition to this, ensure you layer your skin with proper hydrating products like a mist, serum and moisturiser before applying makeup. Start with a hydrating mist to moisten the skin and allow your make-up products to penetrate. 4For a perfect smile: With winters, your lips tend to become dry and chapped. To get rid of dry skin, lightly exfoliate by rubbing your fingers on wet lips in circular motions. After you exfoliate, use a lip balm or a healing cream as this will not only make your lips smooth, but also get the blood flowing and make your lips look a little fuller.4Getting enough sleep: Sleeping is one of the best rewards you can give your skin. During your sleep cycle, your body repairs each of its systems, including your skin. Deep breathing and meditation is also a very important part of skin cleansing as watching your breath flow in and out helps you become aware of your skin and thus rejuvenates it.last_img read more

first_imgKolkata: Trinamool Congress supremo Mamata Banerjee said in 2019 Lok Sabha elections, the fight would be between the “United India” versus “some isolated people.”She was addressing the media after declaring the list of candidates for the ensuing Lok Sabha polls at her Kalighat residence on Tuesday afternoon. “This election is going to be challenging because it will be a contest between the ‘United India’ forces versus some isolated people. It will also sound the ‘death knell’ for the BJP and bring an end to Narendra Modi’s “reign of fear”, Banerjee asserted. Also Read – Bose & Gandhi: More similar than apart, says Sugata Bose”Never in the past have we seen such an arrogant Prime Minister. He has scared everyone — from mediapersons to government officials to the common people. Everyone in India is scared of him.” Banerjee also maintained that demonetisation, mounting unemployment, deprivation of the working class and farmers would be the key issues in the forthcoming Lok Sabha polls. “In the past five years, no development work had been carried out by the BJP-led Centre. They have tried to divide the country on the basis of caste and religion. The Dalits have been oppressed and tortured. They have changed history and politicised the institutions.” Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataReferring to the note ban, she said the Board of Governors of the Reserve Bank did not know about the matter. “The country wants to know under whose instruction the demonetisation of high-value notes had been implemented. I had reacted within half-an-hour after the ban of high-value notes came into force. Hundreds of people died and we want to know whose interest had been taken into consideration.” She also added that the demonetisation had badly affected India’s economy and the country’s GDP. “The Prime Minister had even said that the demonetisation would stop the flow of money to the terrorists. All rubbish,” she maintained. Rendering support to Congress president Rahul Gandhi’s allegations against the government over the Rafale deal, the TMC supremo said: “I completely agree with what Rahul Gandhi is saying about Rafale scam. They (BJP) are threatening journalists like N Ram for speaking out the truth.” She also accused the BJP of pressurising the Election Commission to toe its line because of which the polling schedule was inordinately stretched to enable the Prime Minister to launch an extensive campaign across the country. She further added: “Tamil Nadu has 39 seats and the election will be held there in a single day. It is the same in Kerala as well which has 20 seats. In Bengal, there will be elections in seven phases and we all know what will be the weather in the middle of May.” She urged the Election Commission to ensure that no money was carried by air or road which would be distributed among the people. “Democracy is of the people, for the people and by the people and never of the money, for the money and by the money. I am in favour of Electoral Reforms and our MPs have played a major role in voicing this demand.”last_img read more

first_imgKolkata: State Disaster Management minister Javed Khan on Monday questioned the intention of the Central government regarding allocation of funds for the damages caused by natural calamities.Responding to a query at the state Assembly on the losses incurred by the state due to the cyclonic storm Fani that had hit the state in the first week of May, Khan said the Centre had not sent any delegation to the state as yet . “They neither sent any team to talk to the state for having an idea of the extent of loss caused by Fani,” Khan said. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataHe added that when there was flood like situation in the state in 2017 his department had sent an estimate of Rs 23,000 crore but the Centre dispatched only Rs 1100 crore. “They always discriminate. As many as 20 districts in the state was affected in 2017,” Khan said. He reiterated that the state government will soon sent estimates seeking funds from the Centre against the damages caused by Fani. The state has already spent Rs 14.09 crore for the destruction caused by the cyclone. Also Read – Lightning kills 8, injures 16 in stateHe presented before the state Assembly that 14 districts in the state has been affected due to Fani which includes Hooghly, East Burdwan, North 24-Parganas, South 24-Parganas, Birbhum, Howrah, Bankura, Jhargram, West Burdwan, Nadia, West Midnapore, East Midnapore, Purulia, Murshidabad and parts of Kolkata. “There has been no loss of human life with the state government taking preventive measures in connection with disaster management like setting up relief camps, evacuating people from the coastlines, deploying disaster management teams and several other measures. Altogether 6,383224 people have been affected and 29260 houses have been damaged. The number of municipalities and blocks that have been affected are 54 and 231, respectively,” Khan said. It may be mentioned that Chief Minister Mamata Banerjee had stayed at Kharagpur in West Midnapore where Fani was destined to have the maximum effect in the state and monitored the situation.last_img read more

first_imgFrom the trials and tribulations faced by Bangladeshi migrants to Italy to the global menace of human trafficking, from modern sea bathing culture in Netherlands to the hidden world of one of the world’s most endearing creatures – pandas, powerful narratives from 40 countries will form part of India’s Maha Kumbh of photography.The Kolkata International Photography Festival (KIPF) 2019 will be inaugrated at the Indian Museum today (February 27) and will go on until March 6. Also Read – Add new books to your shelfThe gigantic festival that boasts of photographs dating back to the 1940s to present day, will bring together over 250 photographers showcasing nearly 1500 photographs across 10 iconic venues. Shows will take place in almost all of the city’s top institutions like the Victoria Memorial, Indian Museum as well as galleries like Harrington Street Arts Centre and Kolkata Centre for Creativity (KCC). Other venues include Indian Council for Cultural Relations, Maya Art Space, Nandan and Kolkata Information Centre. Also Read – Over 2 hours screen time daily will make your kids impulsiveInterestingly, KIPF also boasts of being the first ever photography festival that will showcase work from every single continent of the world including the final frontier – Antarctica. A singularly rare cache of photographs, taken by two of Bengal’s greatest achievers – Sudipta Sengupta who was the first Indian woman to set foot on Antarctica, and Satyarup Siddhanta who recently became the only Indian to ever climb Antarctica’s tallest volcanic summit – will showcase life in the heart of frozen kingdom. Festival’s founding director Madhuchhanda Sen, who also owns and runs the iconic Maya Art Space said, “We are immensely proud to be able to showcase such a large variety of work from the far corners of the globe. The repertoire we are putting up will make KIPF 2019 a must attend festival for the world’s who’s who. This will be the first time that a photography festival of such a massive scale – both in terms of content and scale of participants will take place in India”. Festival director Kounteya Sinha, world renowned photographer who is also known as the modern master of visual story-telling said, “Imagine getting to see Raghu Rai’s unseen Kolkata photographed over 40 years, along with the rare photographs clicked by Satyajit Ray himself that have languished in their family vaults. The festival will showcase the best of their collection.” “India has a very rich tradition of photography dating back to centuries. Erstwhile royal families hold a treasure trove of unknown and unseen works that have long languished in their vaults. However, families such as these are now keen for the world to see those treasures. What you will see at the festival is both traditional rare photo works and the best of contemporary photography from the modern masters,” he added. KIPF has also been very clear about its intention to show some of India’s greatest work to the world during the festival. Works of renowned artists including Prashant Panjiar, Ram Rahman, Rohit Vohra, Dhritiman Mukherjee, and others will be displayed. One of the major highlights of the festival will be a string of incredible public installations by Bengal’s greatest installation artists like Partha Dasgupta, Sushanta Paul, Bhabotosh Sutar and Pradip Das. Talking about the festival, India’s renowned art critic and historian Uma Nair who is part of KIPF’s illustrious advisory board said, “KIPF is going to be a watershed moment for the contemporary practice of photography in India. In an age where communication is instant, and we see a melding of East and West like never before, KIPF will transcend boundaries and celebrate the beauty of the common man.” Nair will herself curate some of the collections. She is also on the advisory board of the festival along with stalwarts like Jogen Chowdhury (world renowned artist), Sandip Ray (multiple award-winning filmmaker), Gautam De (director, Indian Council of Cultural Relations), Nemai Ghosh (iconic photographer), filmmaker Goutam Ghosh and Ganesh Holoi (eminent Indian painter). Rarely seen portfolio of India’s most awarded photographer S Paul will also form part of the festival.Never before has any festival had access to Paul’s intricate and private works. Arguably, Kolkata’s most revered old man of photography – Nemai Ghosh who is most known for working with Satyajit Ray as his photo biographer for over two decades, starting with Goopy Gyne Bagha Byne till Ray’s last film Agantuk will showcase a body of work across his life – not just on Bengal but also his tryst with Bollywood.last_img read more

first_imgThe Anne Frank House, Amsterdam; PeaceWorks, an initiative of The Seagull Foundation for the Arts; and the Embassy of the Netherlands in India in collaboration will be organising an art exhibition at India International Centre, from April 18 – 29, 2019.Titled ‘Anne Frank – A History for Today’, the show will highlight the story of Anne Frank against the backdrop of the Second World War and the Holocaust. Her dairy comprising vivid observations and experiences is one of the world’s most popularly read personal accounts of the Holocaust. Also Read – Add new books to your shelfComplete with quotations from her diary and the Frank family’s photographs, the exhibition titled ‘Anne Frank – A History for Today’, will also be showcasing how personal accounts can help us understand events that shaped world history and understand their relevance for today’s age. Besides, a short film on the life of Frank will also be shown to the visitors. Directed by Gerrit Netten, ‘The short life of Anne Frank’ is a 28 minutes documentary. It will include quotes from Anne Frank’s world-renowned diary, historical photos, and archive film. Furthermore, the only known footage of Anne Frank (taken in 1941), and a video of Otto Frank in English (taken in the 1960s) will also be a part of the documentary.last_img read more

first_imgThe Chateau Marmont has a spectacular history, built in 1929 as an apartment complex and opened as a hotel in 1931; it has survived five earthquakes and, thanks to a renovation effort in 1990, it has been saved from dereliction to become as iconic as the celebrities who pass through its doors. Architecturally, the Chateau was inspired by the Château D’Amboise in the Loire Valley.It was initially designed to be the first earthquake-proof apartment building in L.A. As the Chateau states on its website the rooms are ‘perfect for hosting an impromptu party, our thick soundproof walls ensure privacy’.Chateau Marmont Hollywood Photo by Tony Hisgett CC By 2.0Somewhat unfortunately, the build was finished just as the Great Depression hit Hollywood and the developers found themselves without tenets and bills to pay.The building changed hands in 1931 and its new owner, Albert E. Smith, opened it as a hotel. Smith had great vision and maintained most of the rooms as apartments, with a kitchen and seating area, enclosed balconies and some with a dining room.Harry CohnSmith also took advantage of the Depression-era estate sales to deck out the place with antiques and luxury items.Thanks to its soundproof walls, exceptionally discreet staff and private living spaces, it was an immediate hit with the film elite of the 1930’s. Harry Cohn, former head of Columbia Pictures is famously quoted as telling his actors, “If you are going to get in trouble, do it at the Chateau Marmont.”Chateau MarmontAnd get in trouble they did, most famously perhaps is the story of Jean Harlow and Clark Gable having a passionate affair while Harlow was honeymooning at the hotel with her third husband; maybe it’s the rumor that Howard Hughes would use binoculars to spy on starlets at the pool from his balcony in room 64.Clark Gable and Jean Harlow in Hold Your Man, 1933It’s often speculated  that F. Scott Fitzgerald had a heart attack outside the entrance while buying cigarettes. However, according to Mental Floss the heart attack happened  across the street, at Schwab’s Drug Store, in 1940.Château Marmont Photo by Claude PIARD CC By SA 4.0Harry Cohn’s sentiment has become an informal coat of arms for the hotel that has seen James Dean jump through a window in his audition piece for Rebel Without A Cause and Jim Morrison jump out of another window during a stay at the hotel that he would later say “used eight of my nine lives.”Publicity still of James Dean for the film Rebel Without a CauseAs one can imagine from a hotel with soundproof rooms, some stories will remain behind closed doors, but some are too salacious, fabulous or downright tragic to stay out of the public lexicon for too long. Peter Pavel, the manager of Chateau Marmont, said when asked by the New York Times about the outlandish behavior: “People do things here that they wouldn’t dare think of doing at the Peninsula or the Four Seasons, and we think that’s a good thing.”Tales of excess from the Chateau include Led Zeppelin riding their motorcycles through the lobby of the hotel and Billy Idol having the police called on him when he trashed his room while naked.Photo of LED ZEPPELIN (Photo by GAB Archive/Redferns)More recently, Lindsay Lohan was banned in 2012 for racking up a $46,000 room service tab and refusing to pay while Britney Spears was banned in 2007 for smearing food all over her face and upsetting other diners, we now know that she was in the grips of a nervous breakdown at the time.Chateau-Marmont Mark Fugarino CC BY 2.0Of course, the Chateau is full of stories of celebrity hookups, from Dennis Hopper’s 50-woman orgy to Benicio Del Toro and Scarlett Johansson’s 2004 tryst in the elevator, things can get a little steamy at the Chateau Marmont.Among the most tragic are the untimely deaths of actor John Belushi from drug-related asphyxiation in 1980 and the 2004 death of photographer Helmut Newton after he crashed his car into the hotel driveway wall.Read another story from us:  The “Cursed” Mansion – Tudor Estate with a Harrowing Past now up for SaleTo visit the Chateau Marmont today is to spend the day among the Hollywood elite. When questioned about its continuing allure, Lisa Love, Vogue West Coast Editor is quoted in the New York Times as saying “There’s nothing precious about it, it’s just a huge bohemian scene. It is like an extension of your living room.” Except this living room is full of antique furniture, gourmet food and A-list celebrities.last_img read more