From Starbucks punch cards to credit cards that earn frequent flyer miles, everything’s becoming a game. Jesse Schell, a professor at Carnegie Mellon University and founder of Schell Games, thinks that this is only the beginning. In a presentation he recently gave at the DICE 2010 tech summit, he laid out the future “beyond Facebook,” where the psychological tricks used to persuade people to fork over real cash for virtual games like Farmville will infiltrate our lives much more deeply. The future that Schell envisions is high-tech, but not too far-fetched. As technology becomes cheaper and cheaper, it will become more prevalent and even disposable, he says. For example, sensors will be affixed to all sorts of cheap products – from soda cans to cereal boxes – that track our activities. Products will have CPUs, screens, and cameras that allow consumers to play games on the packaging, for instance, and then a Wi-Fi connector will upload the game scores or eating habits to the Internet. Why would you want to participate in this seemingly mundane game world? Because you get points, which can be reimbursed for real goods and money. Of course, you may have to go a little bit out of your way to appease the point-givers. For example, if you use public transportation, maybe you would earn points that could be used for tax incentives. If your kids get good grades, you might get good parenting points from a government-sponsored social program, or kids that participate in positive activities could earn points that go toward a college scholarship. Sensors in your shoes could determine how much you walk per day, and your health insurance company might give you points for walking certain distances or for getting your heart rate up. Maybe you could even get a digital tattoo that comes with a “Tatoogle adsense” agreement, and earn points from that. Jesse Schell’s presentation at DICE 2010.“I jokingly call this convergence of games into reality the ‘Gamepocalypse’: the moment when every moment of life is actually a game,” Schell said in a recent interview at CNN.If all this tracking and measuring sounds a bit dystopian, Schell argues that it’s just good old capitalism at work. After all, no one is required to participate in the games; the game-based society is more a form of highly interactive advertising and influence. Explore further A clip from the video below, showing Jesse Schell’s presentation on life as a game. More information: Schell’s blog: Gamepocalypse Nowvia: CNN Citation: Professor says the Gamepocalypse is coming, but it may have a bright side (w/ Video) (2010, April 13) retrieved 18 August 2019 from https://phys.org/news/2010-04-professor-gamepocalypse-bright-side-video.html Students Launch Audiball, an Xbox Community Game “Anybody who has a product that can sense that the product is being used … they’re going to want to create motivations for you to use the product,” Schell said. “So fundamentally, they’re going to make games out of it, because games are reward-based systems that motivate us to do things.”Schell notes several examples belonging to this game-based future that already exist today. A product called Green Goose that snaps onto your bicycle tracks how much you ride and has a system of rewards based on how much gas you save. An Oral-B toothbrush beeps when it’s time to switch jaw quadrants, and rewards you with a smiley face if you finish the entire three-minute brushing routine. Similarly, a bathroom scale with Wi-Fi that connects to the Internet uploads your weight to a database for tracking over time; the system can also be configured to tweet your weight. A GPS game called Foursquare has turned a practical device used for finding directions into a gaming device, where you get points based on the places you visit. You can even become “mayor” of a place if you visit there more than anyone else. Schell predicts that the next step for these games is when game designers start merging them all together.Listening to Schell describe these everyday devices-turned-games, the Gamepocalypse seems to be a logical next step for society. It’s nothing new that humans are quite a competitive species, even for seemingly trivial pursuits. Still, as Schell notes, these games will only work if the game design is done skillfully, such as by carefully tapping into the human psychology of how we rationalize spending money. Of course, the companies that hire game designers generally have only one goal in mind: profit.“The part that I worry about the most is sort of the perverse incentives that these systems are going to try to create,” Schell said, mentioning the example of tobacco companies. “Largely, the companies won’t be caring about our health and welfare. They’re going to be caring about, ‘Can I manipulate you into doing things that help the company?’”On the other hand, as Schell concludes in his DICE 2010 presentation, living in a world where everything we do is being watched could make us more conscientious and have a positive influence on our behavior.“It could be that these systems are just all crass commercialization and it’s terrible,” he said. “But it’s possible that they’ll inspire us to be better people – if the game systems are designed right.” © 2010 PhysOrg.com 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.
(PhysOrg.com) — Silicon substrate LED’s are cool, but you won’t find them in your TV, or in the headlights of your car. They simply do not throw off enough light to be used in commercial applications. Or, at least they did not used to be able to. © 2010 PhysOrg.com Bridgelux Inc., a California-based developer of semiconductor technology and solid-state lighting, has demonstrated a silicon substrate LED with a light output of 135 lumens per watt. The company believes that this is the first time that anyone has created “commercial grade” performance from a silicon substrate LED.The performance of 135 lumen per watt came to fruition by using a single 1.5-mm diameter LED that is operated at 350-mA. The LED’s have a color correlated temperature (CCT) of 4730K. In order to function the LEDs require a 2.9-V at 350-mA and less than 3.25-V at 1-A.Instead of using the more commonly found sapphire or silicon carbide substrates to create the epitaxial wafers that are used to create the LED, Bridgelux decided to use the less expensive to produce, by growing, gallium nitride on low-cost silicon wafers. These grown wafers come in 150-, 200- and 300-mm diameters that can, according to Bridgelux, deliver a 75 percent improvement in cost.Products based on this technology are at least two to three years to come to market. Some of the potential applications for this technology include commercial and office lighting, residential lighting applications, and retrofit lamps that the company hopes will convert to the solid state lighting. No word as to any specifics as to when you can expect to buy a GaN-on-Silicon based LED lamp. 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. Citation: Bridgelux demonstrates silicon substrate LED that produces 135 lumens per watt (2011, March 9) retrieved 18 August 2019 from https://phys.org/news/2011-03-bridgelux-silicon-substrate-lumens-watt.html IMEC, AIXTRON set important step towards low-cost GaN power devices
Explore further (PhysOrg.com) — When comets and asteroids impact Earth, we’re usually most concerned with how the impact events have affected life here. But scientists have pointed out that these impact events can eject pieces of Earth’s crust containing biological organisms into space, and if ejected at the right velocities from the right location on Earth, the ejected material could collide with another planet and seed life elsewhere in the Solar System. By using new simulations to analyze the dynamics of these ejected particles, and by tripling the number of particles compared with previous studies to improve the statistics, researchers have found that particles could not only reach Venus, the Moon, and Mars, but for the first time they show that particles from Earth could also reach Jupiter. Citation: Simulation shows how Earth may have seeded life on other planets (2011, August 23) retrieved 18 August 2019 from https://phys.org/news/2011-08-simulation-earth-seeded-life-planets.html 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. Auroral rocket observed flow of heat, particles and electromagnetic energy © 2011 PhysOrg.com More information: M. Reyes-Ruiz, et al. “Dynamics of escaping Earth ejecta and their collision probability with different Solar System bodies.” arXiv:1108.3375v1 [astro-ph.EP]via: Physics ArXiv Blog Out of 10,242 simulated particles ejected from Earth, these figures show the number of particles that collide with nearby planets at three different ejection velocities, and the collision times. In the top panel, the values corresponding to collisions with Venus and the Moon are 10 times the actual values, which are too small to be plotted. Image credit: M. Reyes-Ruiz, et al. Mauricio Reyes-Ruiz at the Universidad Nacional Autonoma de Mexico and coauthors have posted their study on the collision probabilities of particles ejected from Earth with other nearby planets at arXiv.org.In addition to showing that particles ejected from Earth could reach Jupiter, their simulations also showed that the number of particles ejected from Earth that collide with Mars is two orders of magnitude greater than previous studies have found. The researchers explain that both results have astrobiological significance, especially due to the evidence for life-sustaining environments on early Mars and on Jupiter’s moons Europa and Ganymede.In their simulations, the researchers analyzed 10,242 particles with a minimum ejection velocity of 11.2 km/s (which is required to escape Earth’s orbit). Different impact events throughout Earth’s history have ejected particles with a wide range of velocities, with the maximum determined by the speed of the impactor as it hits Earth. The researchers followed the simulated ejected particles for 30,000 years, which is the maximum estimated survival time for biological material in space.Calculations have shown that an ejection velocity of 11.62 km/s is needed to reach Mars and 14.28 km/s to reach the orbit of Jupiter. While particles with ejection velocities of around 11.2 km/s have the highest chance of falling back to Earth, particles with ejection velocities of greater than 16.4 km/s typically get launched entirely out of the Solar System. Since these particles spend a very short amount of time in the inner Solar System, their collision probability with other planets is negligible.The results of the simulation also showed that the probability of particles ejected from Earth colliding with other planets depends on the particular place on Earth from where the particles are ejected. Particles ejected from Earth’s leading face along its direction of motion, which are statistically more likely, have a higher probability of colliding with Mars and Jupiter, while particles ejected from the trailing face are more likely to impact Venus.The researchers note that, overall, the probability of particles ejected from Earth colliding with another planet is very small. Further studies will be needed to investigate the velocity distribution of the ejected particles, along with simulations that use a greater number of ejected particles to estimate collision rates that have greater statistical significance.
Citation: Teenager reportedly finds solution to 350 year old math and physics problem (2012, May 29) retrieved 18 August 2019 from https://phys.org/news/2012-05-teenager-reportedly-solution-year-math.html 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. Image: Welt.de © 2012 Phys.Org Shouryya Ray, a modest student who just four years ago was living in Calcuta, has been on an accelerated learning course and is taking his Abitur exams two years early. His math equations won him first place in a state science competition and second place in the national Math and IT section at finals. He’s told the press that figuring out how to come up with his formulas was more due to school-boy naivety than genius, which the German press has been suggesting.Ray moved with his family to Germany when his father landed a job as a research assistant at the Technical University of Freiburg. He has apparently shown great aptitude for math from an early age, learning calculus from his dad when he was still just six years old. He’s told the press that he got the idea of trying to develop the two formulas after visiting Dresden University on a field trip where he was told that no one had been able to come up with equations to describe the two dynamics theories. Ray’s story has generated a lot of press around the world, highlighting the young lad’s ability to come up with a math formula that not even the great Isaac Newton could find, despite the fact that no one other than a few local people have seen the formulas he’s created; thus, in the math and physics world there remains a great deal of skepticism regarding what he’s actually accomplished and most are holding off judgment until the formulas are published and reviewed. More information: via Welt, IBTimes, Discovery (Phys.org) — In Isaac Newton’s Principia Mathematica published in 1687, the man many consider the most brilliant mathematician of all time used a mathematical formula to describe the path taken by an object when it is thrown through the air from one point to the next, i.e. an arc based on several factors such as the angle it is thrown at, velocity, etc. At the time, Newton explained that to get it completely right though, air resistance would need to be taken into account, though he could not figure out himself how to factor that in. Now, it appears a 16 year old immigrant to Germany has done just that, and to top off his work, he’s also apparently come up with an equation that describes the motion of an object when it strikes an immobile surface such as a wall, and bounces back. Explore further Revealed: The fish that nearly sank Isaac Newton
Citation: Invisibility cloak hides parts of objects, leaves other parts visible (2013, December 2) retrieved 18 August 2019 from https://phys.org/news/2013-12-invisibility-cloak-visible.html The new study marks the first time that scientists have designed and fabricated localized invisibility cloaks and illusion devices that cloak or change only the desired parts of an object, leaving the other parts visible. To do this, the researchers explain how they first divide the physical space to be cloaked into many subregions (because invisibility cloaks operate on circular regions, the space is divided along azimuthal and radial lines, like the lines of a dart board). Any of the subregions can be chosen to be cloaked or not cloaked. Next, the researchers map the subregions of the real object to the corresponding subregions in a localized cloak. To make a subregion invisible, the researchers fill it with a cloaking material. As in global invisibility cloaks, this cloaking material is an artificially engineered metamaterial that has the key properties of being inhomogeneous and anistropic. To make a subregion visible, the researchers fill it with a material that is related to the original object, to generate the scattering signals of some parts of the object.The researchers demonstrated the feasibility of localized cloaking through numerical simulations and experimental demonstrations, and plan to continue with more experiments in the future.”We proposed the idea of localized transformation optics devices in all parts of the electromagnetic spectrum, including microwave, optical, etc.,” Cui said. “As a special example, we fabricated and tested a direct-current localized invisibility cloak in circuits. In the near future, we plan to fabricate a localized invisibility cloak in microwave frequencies and design some more complex transformation optics devices.” (a) Illustration of a locally invisible object, in which the green subregions are visible and the white subregions are invisible. (b) The near-field distribution of the object enclosed by the localized invisibility cloak shows that the white subregions look like the background, while the green subregions have a solid (visible) appearance. Credit: Jiang, et al. ©2013 AIP Publishing LLC (Phys.org) —When Harry Potter walks around with a visible head but an invisible body, the performance seems strongly rooted in fantasy. But in a new study, scientists have designed and fabricated an invisibility cloak that may make such a feat possible. The new cloak can conceal some arbitrarily chosen parts of objects while leaving other parts visible, making it a localized invisibility cloak. Nearly perfect, ultrathin invisibility cloak could have wide practical applications More information: Wei Xiang Jiang, et al. “Localized transformation optics devices.” Applied Physics Letters. DOI: 10.1063/1.4833279 The researchers, led by Professor Tie Jun Cui at Southeast University in Nanjing, China, have published their paper on localized transformation optics devices in a recent issue of Applied Physics Letters.”The potential application of a localized invisibility cloak is to make an object partly invisible and leave other parts visible,” Cui told Phys.org. “Although it is difficult to allow a person to be partly visible and partly invisible in current technology, we believe it is completely possible in the future.”Transformation optics devices, which control and guide electromagnetic fields, have been fabricated in many different forms since the concept was first proposed by John Pendry, et al., in 2006. For example, there are invisibility cloaks for microwave, infrared, and optical frequencies; ground-plane or carpet cloaks for hiding objects on a flat plane; and cloaks (also called illusion optical devices) for changing the scattering signals of objects so they appear as different objects.However, all of the devices that have been fabricated so far conceal and change the scattering signals of whole objects. As such, they can be thought of as global invisibility cloaks and illusion devices. Explore further © 2013 Phys.org. All rights reserved. Journal information: Applied Physics Letters (a) The original object (a car) can be enclosed by (b) a localized invisibility cloak so that part of the car is invisible or (c) a localized illusion device so that the part that was invisible in (b) appears as a minivan. Credit: Jiang, et al. ©2013 AIP Publishing LLC 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.
© 2014 Phys.org. All rights reserved. More information: Hyunseok Jeong, Youngrong Lim, and M. S. Kim. “Coarsening Measurement References and the Quantum-to-Classical Transition.” Physical Review Letters, DOI: 10.1103/PhysRevLett.112.010402Also available at arXiv:1307.3746 [quant-ph] Quantum measurement carries information even when the measurement outcome is unread (Phys.org) —The quantum and classical worlds are clearly very different, but how a physical system transitions between them is much less clear. The most well-known attempt to explain the quantum-to-classical transition is decoherence, which is the idea that interactions with the environment destroy quantum coherence, causing a quantum system to become classical. Explore further Journal information: Physical Review Letters Citation: Quantum-to-classical transition may be explained by fuzziness of measurement references (2014, January 14) retrieved 18 August 2019 from https://phys.org/news/2014-01-quantum-to-classical-transition-fuzziness.html But in more recent years, physicists have been investigating alternative explanations based on an observer’s limited ability to control the precision of the measurements made on a system. The idea is that a system that appears to exhibit quantum behavior when observed with very precise measurements will appear to behave classically if the measurements are too coarse or fuzzy. In such a scenario, the coarsening of measurements forces the quantum-to-classical transition.The problem is, fuzziness in measurements does not always result in the quantum-to-classical transition, and physicists aren’t sure what exact conditions of the measurement process are necessary to definitively force the quantum-to-classical transition.In a new study published in Physical Review Letters, physicists Hyunseok Jeong and Youngrong Lim at Seoul National University in Seoul, Korea, and M. S. Kim at Imperial College London in the UK, have proposed an explanation. They explain that a complete measurement process is composed of two parts: one part is to set and control a measurement reference (such as timing or angle), and the other is the final detection. All of the previous studies have focused on coarsening the resolution of the final detection. Here, the physicists looked at both parts of the measurement process and found that their coarsening leads to completely different outcomes. Their main result is that coarsening the measurement reference always forces the quantum-to-classical transition, while coarsening the final detection does not. This is because increasing the “macroscopicity” of the system, such as by increasing the number of photons in an entangled photon state, can make up for the coarseness of the final detection, but not for the coarseness of the measurement reference.”Our results reveal a previously unknown yet very critical element in the process of the quantum-to-classical transition,” Jeong told Phys.org. “In the previous research along this line, researchers have paid attention to coarsening of the measurement resolution (i.e., efficiency of the final detection) to explain the quantum-to-classical transition, but it does not result in the quantum-to-classical transition under certain conditions. On the other hand, coarsening of the measurement references provides a stronger mechanism to explain the quantum-to-classical transition, as far as we could see, without an exception. Our results provide new insights into the quantum-to-classical transition and deepen the understanding of the measurement process by revealing the importance of the observer’s ability in controlling the measurement references.”The researchers explain that coarsening and decoherence are complementary explanations of the same problem.”The approach based on coarsening of measurements enables one to explain a part of the quantum-to-classical transition that cannot be explained by decoherence and vice versa,” Jeong said. “They are not contradictory to each other, nor does one of them replace the other.”The analysis suggests that this finding holds true for a wide range of physical systems, such as optical, atomic, and mechanical, and for systems using various degrees of freedom. In the future, the researchers hope to further investigate the extent of these results.”We hope to provide a more general and complete picture of the quantum-to-classical transition in our future research,” Jeong said. “In our published work, we investigated several different types of physical systems in order to support our claim. There exists, however, an interesting open problem to formally prove our claim in a completely general way for arbitrary systems. In general, we will further explore the boundaries between the quantum and classical worlds to understand and clarify when and how quantum systems become classical and vice versa.” 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.
Quantum physics could make secure, single-use computer memories possible Journal information: Physical Review Letters “QDS provides essentially all features for which standard ‘classical’ digital signatures are used in modern communication—guaranteed authenticity, integrity and transferability of messages,” Erika Andersson at Heriot-Watt University in Edinburgh, UK, told Phys.org. “The need for these features is ubiquitous in the modern e-world. They are used regularly in, for example, online banking, email systems, and smart electrical grids.”However, all QDS schemes proposed so far require advanced quantum memories capable of storing millions of qubits for months or even years. In contrast, today’s state-of-the-art quantum memories cannot store information for longer than a few minutes, which makes all QDS schemes proposed so far unfeasible. Now in a new paper published in Physical Review Letters, Andersson and UK-based coauthors Vedran Dunjko and Petros Wallden from Croatia and Greece, respectively, have proposed a QDS scheme that does not require any quantum memory, making the scheme feasible with current technology.A generic QDS protocol consists of two stages: distribution and messaging. In the distribution stage, the sender sends pairs of quantum states—or quantum signatures—to multiple recipients. This stage is independent of the future message sent in the messaging stage, where classical messages are sent to one or more recipients. Sometimes, it may be months or years from the time the quantum signatures are sent to the time an actual message is sent, which is why quantum memories have been required. The new protocol differs from the generic one in both stages. In the distribution stage, the quantum signatures are converted to classical information through quantum measurements, but they still retain the same level of security guaranteed by quantum mechanics. Yet because the information is now classical, it can be stored in a classical memory instead of a quantum one. Similarly, in the messaging stage, only classical data is processed by the receivers. One receiver may authenticate a message received directly from the sender, and a second receiver may verify a message forwarded by the first receiver. The scientists showed that, in both cases—authentication and verification—the new scheme provides security against problems such as forgery, tampering, and repudiation (in which the second receiver rejects the forwarded message).By showing that it is possible to perform a QDS scheme by using classical correlations, while maintaining the same security that is guaranteed by quantum correlations, the results open the doors to the experimental realization of QDS systems.”We have, since the publishing of our work, already carried out an experimental demonstration of our scheme on a small scale, in collaboration with the group of Prof. Gerald Buller at Heriot-Watt University,” the physicists wrote. “This we also aim at extending. Furthermore, we are developing new theoretical results which will make QDS even more efficient and feasible—everything can always be improved!” A communication protocol that uses quantum digital signatures (QDS) offers security guaranteed by quantum mechanics. A new QDS protocol that does not require quantum memories is the first scheme that may be feasible with current technology. Credit: Dunjko, et al. ©2014 American Physical Society © 2014 Phys.org. All rights reserved. Explore further (Phys.org) —Quantum mechanics offers the potential for creating communication technologies with an inherently higher security level than today’s classical technologies. Using quantum digital signatures (QDS), for example, messages can be sent to multiple recipients with the guarantee that the messages cannot be forged or tampered with. More information: Vedran Dunjko, et al. “Quantum Digital Signatures without Quantum Memory.” Physical Review Letters. DOI: 10.1103/PhysRevLett.112.040502Robert J. Collins, et al. “Optical realisation of Quantum Digital Signatures without quantum memory.” arXiv:1311.5760 [quant-ph] 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: Quantum communication scheme provides guaranteed security without quantum memories (2014, February 17) retrieved 18 August 2019 from https://phys.org/news/2014-02-quantum-scheme-memories.html
Credit: Karen M. Davies et.al. pnas.org/content/108/34/14121.full More information: Cox17 is an auxiliary factor involved in the control of the mitochondrial contact site and cristae organizing system, The Journal of Biological Chemistry, First Published on April 27, 2015, DOI: 10.1074/jbc.M115.645069 . http://www.jbc.org/content/early/2015/04/27/jbc.M115.645069.full.pdf+html Explore further More power to the mitochondria: Cells’ energy plant also plays key role in stem cell development Citation: Controlling the internal structure of mitochondria (2015, May 5) retrieved 18 August 2019 from https://phys.org/news/2015-05-internal-mitochondria.html Perhaps the more difficult question here is which geometries correspond to which mitochondrial behaviors. The possible behaviors obviously include not just making ATP, but also everything from fatty acid oxidation, to synthesizing steroids, pigments, and other eclectic essentials for the host cell and organism. The possible membrane geometries, much like the various creatively-named models for the generation complex lipid membranes of myelinated nerves, come with descriptive brands like the original ‘infolding baffle model’ and the more modern ‘crista junction’ models. Crista junctions are the proteinaceous contacts made a specific critical points between the inner and outer membranes. These various folds transition in various contexts between tubular, lamellar, and helically wound sheets ( particularly common in certain protists).A couple of papers from the past week have reported on the roles of some of the more important proteins in shaping membranes. Of note, one published by Polish and German researchers in The Journal of Biological Chemistry found a critical new protein that controls formation of the so-called MICOS system (mitochondrial contact site and cristae organizing system). This protein, Cox17, was already known for its role as a chaperone in the assembly of respiratory complex IV on the inner membrane of mitochondria. Known as cytochrome c oxidase (COX), this is the terminal respiratory complex in the whole chain—the one that hands off the electrons to oxygen. Among other amenities, Cox17 has a series of critical cysteines which appear to involved in recruiting copper to the business end of the mitochondrially encoded COX subunits. (Phys.org)—One might think of mitochondria as devices for transporting electrons to their lowest energy state. Little bags of finely-tuned respiratory chain subunits which combine electrons extracted from food with oxygen, and ultimately excrete them as water. Others might justifiably fancy mitochondria tiny bundles of geometry. Their folded inner membranes pegged with various proteins complexes like the rolls of candy button paper we might have ate as kids. Actually mitochondria are both enzyme bags and geometrical objects: the latest research tells us that it is proteins which create the complex inner membrane geometry specific to each kind of mitochondria, and in turn, it is their precise geometry which permits the respiratory proteins to create useful work in the first place. Several researchers have previously found that this 600-kDa ATP-generating monster forms dimers that localize to the highly curved wells in the deepest recesses of the crista. These dimers (and sometimes higher order multimers), are found in everything from yeast to mammals, and align themselves in rows forming a ‘ridged ribbon’ across much of the mitochondria. In cross section, the dimers are in contact at an angle of about 90 degrees (between the long axis of the central symmetry axis of the sythase turbine), which gives them the rough appearance of a V-8 engine. Now, the method to the madness here is that the cristae can act as ‘proton traps’: the respiratory chain complexes form the proton sources, and the ATP synthases form the proton sinks at the apex of each local crista compartment. Under proton limited conditions the optimal flow of ions set up in this geometry would then allow for efficient ATP synthesis.It is not yet understood what drives synthase dimerization. It has been suggested that the spontaneous formation of dimer rows is driven more by the reduction in the membrane elastic energy than by direct protein contacts. Depending on which ATP synthase subunits are deleted, different experimental effects on mitochondrial geometry can be acheived. Deletion of subunits ‘E’ or ‘G’, which control dimerization, result in layers of onion-like inner membranes instead of the typical cristae. In some cases, the cristae are balloon-shaped and the lone synthase monomers take on a random distribution. Other research has drawn parallels between certain kinds of cristae geomtry and optimization for different kinds of metabolic activites like for example synthesis of steroids. In this case the convential wisdom is that steroid generating mitochondria are presumed to have higher crista tubularity while more typical mitochondria retain more lamellar crista instead.Perhaps more intriguing is the recent observation in fruit flies that while ATP synthase plays a key role in germ cell differentiation, that role is completely independent of oxidative phosphorylation. In other words, when any one of ATP sythase’s 13 key proteins were blocked, the manipulation stalled egg development, however, blocking other enzymes required for ATP production did not. Each organ develops it’s own preferred style of mitochondria, but it may be the retina which provides the best place to try to answer the ‘how and the why’ geometry is optimized according to cell type and function. Not only can a stimulus be precisely controlled and oxygen consumption easily measured for the retina, but the precise anatomical differences of rods verses cones are now known in great detail. For example, research by Marc Ellisworth has defined the connectivity and tubularity in crista structure for mitochondria found in the inner segments of photoreceptors, and correlated it with their known spiking characteristics and presumed signalling efficiency. In asking basic structure-function questions as we have before for whether a neuron should fire or not fire—ie. polarize or hyperpolarize in response to some event— like light, the costs and benefits associated with specific mitochondrial geometeries should not be ignored.It may be a small insight to appreciate, for example, that ‘rods are metabolically less costly than cones because cones don’t saturate in bright light and also use more ATP in their downstream signalling pathways,’ but to be able to see that directly in the mitochondria, through nothing but bare membrane geometry is a good beginning. Journal information: Journal of Biological Chemistry © 2015 Phys.org In addition to defining a key role for Cox17 in establishing the MICOS, the researchers found that copper itself may regulate the interaction between the two. Truth be told, that point is probably not a very big deal. The MICOS seems to be a fairly sensitive assembly—if just one of its six protein subunits is missing the membrane contact points will detach. The MICOS works together with the crista junctions to maintain the deeply fissured profile of the crista. You might asking yourself about now, what exactly is the point of this peculiar clefted geometry? For that we need to look at the heavy hitter of mitochondrial proteins, the F1F0-ATP synthase. This is the guy that gets all the hard-core creationists up in a bunch for no apparent reason other than because it is simply that cool. Structure of ATPase dimers. Credit Karen M. Davies et. al. PNAS 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: Black soldier fly larvae found to maximize eating by forming a fountain (2019, February 6) retrieved 18 August 2019 from https://phys.org/news/2019-02-black-soldier-larvae-maximize-fountain.html © 2019 Science X Network Study shows how beetle larvae adapt to different bee hosts Journal information: Journal of the Royal Society Interface Images of the larvae and food after 33 min next to the corresponding time-averaged velocity fields, with the mixing region selected. (a) 500 larvae, (b) 1000 larvae, (c) 3000 larvae, (d) 5000 larvae and (e) 10 000 larvae. (f) The relationship between number of larvae and their flow rate. Credit: Journal of The Royal Society Interface (2019). DOI: 10.1098/rsif.2018.0735 Black fly larvae (also known as maggots) are known to be voracious eaters—a video of a horde consuming an entire pizza in just a couple of hours has been available for viewing on YouTube for several years. After seeing the video, the researchers with this new effort wondered how they were able to do it so quickly. To find out, they set out pieces of food for groups of larvae and used a high-speed camera to capture the action.By watching a mass of larvae eat in slow motion, the researchers observed that they exhibit a degree of cooperation that made the process of sharing a meal a more efficient affair. They noted that a single larva did not eat constantly—instead, it ate for about five minutes, then stopped to rest for five minutes before eating again. During the pause in eating, hungry larvae shoved it out of the way. The entire process consisted of a frontline of larvae reaching a food sample first, upon which the larvae would form an ascending mass—those that came from behind the first crawled on top to reach food higher up, and so on with each new arrival. Eventually, they reached a maximum height, preventing the larvae in the back from eating. But as soon as an individual maggot stopped to rest, the larva behind it would shove it up and over the top of its own body, and it would fall down the hill of bodies surrounding the food. The researchers found the whole process flowed like water from a fountain, in which water that is pushed out the top is continuously recycled. The end result is a very efficient eating mechanism that allows the larvae to consume food quickly and also allows each individual in the group to get its fair share of a meal. Explore further More information: Olga Shishkov et al. Black soldier fly larvae feed by forming a fountain around food, Journal of The Royal Society Interface (2019). DOI: 10.1098/rsif.2018.0735 A team of researchers at the Georgia Institute of Technology has found that black soldier fly larvae maximize their eating efficiency by pushing non-eaters out of the way, causing the emergence of a fountain shape made up of larvae bodies. In their paper published in Journal of the Royal Society Interface, the group describes their study of black fly larvae and their eating habits, and what they learned. 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.
Credit: CC0 Public Domain Stonehenge is, of course, a monument built roughly 5,000 years ago by Neolithic people for unknown reasons—they left behind no written records. In modern times, the monument has become famous the world over, and attracts hundreds of thousands of tourists every year. The researchers explored what a human voice would have sounded like inside the monument during its heyday. To find out, they applied a modern technique that has been used to help architects build concert halls with optimal sound characteristics. The technique involves building a small-scale model of a building prior to construction and blasting sounds at it at 12 times their normal frequency in a sound chamber to overcome the size differences.To replicate the technique for Stonehenge, the researchers 3-D printed each of the stones and used them to make silicon molds that were then filled with a plaster-polymer mix. Each of the stones was painted and then placed in its original position within the monument. The result was a 1:12 scale model of the original monument—the tallest model stone was just 60 centimeters.Next, the team subjected the model to sound tests in a sound chamber, producing a sound profile for the monument. They then applied the sound profile to the recorded voice of a team member. The researchers claim the voice in the recording sounds like it would have were the team member to have stood in the center of the monument while speaking all those years ago. They note that despite large spaces between the stones, a person’s voice would have reverberated around the monument, producing an echoing effect. They also suggest it is not likely that the people who built the monument knew what impact it would have on a speaker’s voice, but point out that it seems likely they would have taken advantage of the impressive acoustics.Professor @trevor_cox from @SalfordAcoustic Research Centre recreated sounds from the #StoneAge as sounds passed through a 1:12 scale model of #Stonehenge, to determine how sound would have carried across all of its stones in 2200 BC. https://t.co/x0oCW1NH9m— Salford Uni News (@SalfordUniNews) July 11, 2019 © 2019 Science X Network Citation: Mini-model of Stonehenge reveals how voices would have carried in original ancient monument (2019, July 12) retrieved 18 August 2019 from https://phys.org/news/2019-07-mini-model-stonehenge-reveals-voices-ancient.html 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. Explore further New study of Avebury monument suggests it started out as a single-family home A team of researchers at the University of Salford in the U.K. has revealed how voices would have sounded 4,000 years ago inside of the Stonehenge monument. The group made a recording of their efforts and posted the results on SoundCloud.
Research on light-matter interaction could improve electronic and optoelectronic devices Investigating the remarkable excitonic effects in two-dimensional (2-D) semiconductors and controlling their exciton binding energies can unlock the full potential of 2-D materials for future applications in photonic and optoelectronic devices. In a recent study, Zhizhan Qiu and colleagues at the interdisciplinary departments of chemistry, engineering, advanced 2-D materials, physics and materials science in Singapore, Japan and the U.S. demonstrated large excitonic effects and gate-tunable exciton binding energies in single-layer rhenium diselenide (ReSe2) on a back-gated graphene device. They used scanning tunneling spectroscopy (STS) and differential reflectance spectroscopy to measure the quasiparticle (QP) electronic and optical bandgap (Eopt) of single-layer ReSe2 to yield a large exciton binding energy of 520 meV. To probe carrier-dependent excitonic effects, the scientists first transferred a monolayer ReSe2 flake on to a clean back-gated graphene FET (field effect transistor) device. The device constituted of several components according to a previously established recipe to include a SiO2 substrate, which contrasted with the constituent atomic flatness of hexagonal boron nitride (hBN) that markedly reduced surface roughness and charge inhomogeneity in graphene. The use of graphene allowed direct scanning tunneling microscopy (STM) measurements of the gated single-layer ReSe2 while improving the electrical contact to monolayer ReSe2. After STM imaging the atomically resolved image revealed a diamond chain-like structure as expected for monolayer ReSe2 with a distorted 1T atomic structure. The scientists observed the stacking alignment of the material along two crystallographic orientations as moiré patterns, where monolayer ReSe2 containing a triclinic lattice symmetry lay on graphene with a honeycomb lattice. Gate-dependent dI/dV and differential reflectance spectra of a monolayer ReSe2 on graphene. (A) dI/dV spectrum of monolayer ReSe2 (blue line) at Vg = 0 V together with the calculated LDOS (dashed red line). (B) Energy position of VB maximum (VBM; red points) and CB minimum (CBM; dark blue points) as a function of the gate voltage. (C) Gate-dependent dI/dV spectra of the monolayer ReSe2 on graphene/h-BN measured at 4.5 K. As-applied gate voltage is indicated above each STS curve. The VBM and CBM were indicated by light red and light blue points, respectively. (D) Gate-dependent differential reflectance spectra of the monolayer ReSe2 on graphene/h-BN measured at 5 K. The corresponding gate voltage is indicated on the side of each differential reflectance spectrum. Note: The original differential reflectance spectra after background subtraction (circles); fitted curves using the Lorentzian function (solid lines). a.u., arbitrary units. Credit: Science Advances, doi: 10.1126/sciadv.aaw2347. Researchers can engineer theoretically predicted and experimentally demonstrated Coulomb interactions in 2-D semiconductors to tune the quasiparticle bandgap (Eg) and exciton binding energies (Eb) of samples, with methods such as chemical doping, electrostatic gating and engineering environmental screening. Among the reported techniques, electrostatic gating offers additional advantages such as continuous tunability and excellent compatibility for integration in modern devices. However, an overlap of the band-edge absorption step with strong excitonic resonances makes it challenging to accurately determine the Eg of 2-D semiconductors from their optical absorption spectrum alone. STM images of moiré pattern in monolayer ReSe2/graphene. (A to C) Representative moiré patterns observed in the experiment. (D to F) Calculated moiré patterns obtained from the geometrical analysis. θ is the stacking angle between ReSe2 and graphene. Credit: Science Advances, doi: 10.1126/sciadv.aaw2347 Explore further , Nature When they probed the local electronic properties of ReSe2 using STS (scanning tunneling spectroscopy) the scientists observed differential conductance (dI/dV) spectra in several moiré regions to exhibit similar features. As a unique feature of the study, Qiu et al. probed the quasiparticle (QP) band structures as a function of gate voltage. The optical bandgap (Eopt) remained nearly constant at all gate voltages in contrast to the monotonic reduction of Eg, in agreement with previous experimental studies. To verify this, they performed photoluminescence measurements of the monolayer ReSe2/graphene/h-BN sample at different gate voltages at room temperature (RT). The gate-dependent photoluminescence spectra revealed a nearly constant Eopt of monolayer ReSe2. The scientists then determined the exciton binding energy and derived a large, gate-tunable bandgap renormalization for ReSe2 in the hybrid device. They sought the physical origins of the gate-tunable QP bandgap renormalization and exciton binding energy in the monolayer ReSe2 by excluding contributions from the out-of-plane field-induced polarization wave functions and substantiated their origin from gate-induced free carriers in graphene. Theoretical results of the study also showed that moderate doping in graphene could substantially reduce exciton binding energy (Eb) by hundreds of milli-electron volts as the free-carrier concentration in graphene increased. In addition, Qiu et al. directly compared the theory with their experimental results. In this way, Zhizhan Qiu and co-workers successfully tailored the QP bandgap and exciton binding energy in a 2-D semiconductor by controlling doping of the underlying graphene with electrostatic gating. The results showed that screening from a graphene substrate had profound impact on Coulomb interactions that lead to broad tunability of the electronic band gap and exciton binding energy. The findings revealed many-electron physics in hybrid 2-D semiconductors or graphene systems. The work will pave the way to control excitonic effects and precisely tune the exciton binding energies in 2-D semiconductors for a variety of technical applications. Calculation of Eb in monolayer ReSe2 as a function of the carrier density in graphene substrate. Exciton binding energy (Eb) and Thomas-Fermi screening radius (rs) as a function of electron concentration (n) in graphene. (A) The carrier-dependent Eb for , Nature Materials , Nature Physics Gate-tunable bandgap renormalization and exciton binding energy of monolayer ReSe2 on graphene. (A) A plot of QP bandgap Eg (black points), optical bandgap Eopt (red points), and exciton binding energy Eb (blue points) as a function of gate voltage. Note: The Eopt = 1.47 ± 0.01 eV remains constant when the gate voltage increases from −40 to 40 V. Note: The same Eopt is used for the calculation of Eb at the gate voltage of −63, −60, −50, and +45 V. The solid blue line refers to the theoretically predicted Eb as a function of the gate voltage (refer to section S8 for more details). (B) Illustration of the screening of electron-hole interactions in monolayer ReSe2 by the gate-controlled free carriers in graphene. (C) Schematic illustration of gate-tunable Eg and Eb of monolayer ReSe2 at the gate voltage of −63 and +45 V, respectively. Credit: Science Advances, doi: 10.1126/sciadv.aaw2347. Journal information: Science Advances Scientists had therefore used scanning tunneling spectroscopy and optical spectroscopy to directly probe the Eb of 2-D semiconductors and measure Eg and the optical bandgap (Eopt). In the present work, Qiu et al. similarly used this approach to demonstrate gate-tunable Eg and excitonic effects in monolayer ReSe2 on a back-gated graphene field-effect transistor (FET) device. They observed a large Eb of 520 meV for monolayer ReSe2 at zero gate voltage, followed by continuously tuning from 460 to 680 meV via electrostatic gating due to gate-controlled free carriers in graphene. The ability to precisely tune the bandgap and excitonic effects of 2-D graphene semiconductors will provide a new route to optimize interfacial charge transport or light-harvesting efficiency. Qui et al. expect the present findings to profoundly impact new electronic and optoelectronic devices based on artificially engineered van der Waals heterostructures. Qui et al. first imaged the monolayer ReSe2 to show a distorted 1T structure with triclinic symmetry. The four Re atoms slipped from their regular octahedral sites due to charge decoupling to form a 1D chain-like structure with interconnected diamond-shaped units. Due to the topological features, the monolayer ReSe2 exhibited unique in-plane anisotropic electronic and optical properties useful for near-infrared polarization-sensitive optoelectronic applications. Identify the thickness of monolayer ReSe2. (A) The optical image of monolayer ReSe2 (inside the dashed rectangle) transferred on G/h-BN. The inset image is the dark field optical image for the ReSe2 flake. (B) The AFM image of monolayer ReSe2. Inset: the step height of exfoliated ReSe2 flake is measured to be ~0.8 ± 0.1 nm, suggesting a monolayer thickness. Credit: Science Advances, doi: 10.1126/sciadv.aaw2347 The scientists achieved continuous tuning of the electronic bandgap and exciton binding energy of monolayer ReSe2 by hundreds of milli-electron volts via electrostatic gating. Qiu et al. credited the phenomenon to tunable Coulomb interactions arising from the gate-controlled free carriers in graphene. The new findings are now published on Science Advances and will open a new avenue to control bandgap renormalization and exciton binding energies in 2-D semiconductors for a variety of technical applications. Atomically thin two-dimensional (2-D) semiconductors usually display large bandgap renormalization (shifts in physical qualities) and extraordinary excitonic effects due to quantum confinement and reduced dielectric screening. Light-matter interactions in these systems are governed by enhanced excitonic effects, which physicists have studied to develop exciton-based devices at room temperature. A unique feature of 2-D semiconductors is their unprecedented tunability relative to both electric and optical properties due to doping and environmental screening. More information: Zhizhan Qiu et al. Giant gate-tunable bandgap renormalization and excitonic effects in a 2-D semiconductor, Science Advances (2019). DOI: 10.1126/sciadv.aaw2347Miguel M. Ugeda et al. Giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor, Nature Materials (2014). DOI: 10.1038/nmat4061 Dmitrii Unuchek et al. Room-temperature electrical control of exciton flux in a van der Waals heterostructure, Nature (2018). DOI: 10.1038/s41586-018-0357-y Jyoti Katoch et al. Giant spin-splitting and gap renormalization driven by trions in single-layer WS2/h-BN heterostructures, Nature Physics (2018). DOI: 10.1038/s41567-017-0033-4 © 2019 Science X Network Citation: Giant gate-tunable bandgap renormalization and excitonic effects in a 2-D semiconductor (2019, July 25) retrieved 18 August 2019 from https://phys.org/news/2019-07-giant-gate-tunable-bandgap-renormalization-excitonic.html 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.
Her energy is infectious. When the curly haired damsel hits the stage with her dense voice, she makes sure that her audience sways away hypnotically. Adding to that charm plays along the ambient electronica.Hari and Sukhmani, are the face of contemporary Punjabi folk music. Hari’s electronic skills with Sukmani’s hedonistic performance on stage puts life to every stage they hit.The two have produced an eclectic mix of music from electro house Madhaniyan, Also Read – ‘Playing Jojo was emotionally exhausting’ dubstep version of traditional folk song Chhala to the loungey Boohey Baariyan. International gigs aside,the duo debuted in bollywood with a heart rending track Kangi in Deepa Mehta’s Heaven on Earth. There plan is to take the yesteryears Punjabi folk music into the future, from New Delhi to New York City.Sukhmani with her trained Hindustani classic voice from Rampur gharana and Hari Singh, the producer and audio engineer make for a heady mix when they perform live together. Coming straight from the city beautiful Chandigarh, they are going to be here to enthrall you Delhites!DETAILWhere: DLF Place SaketWhen: April 20, 6:30 pm
Officers of the Kolkata police could be seen manning the riverfront to prevent onlookers from getting too close to the river. Special vigil was being maintained from a watch tower near the ghat as thousands waited for hours to bid farewell to the Goddess. Cranes were deployed at certain ghats to lift and extricate the remains of idols from the river to avoid pollution. Additional lights were up at the immersion ghats and the flowers, levers and metallic weapons were being dumped in separate vats to avoid polluting the river. Also Read – Need to understand why law graduate’s natural choice is not legal profession: CJIOther than maintaining law and order during immersion, the teams of river police and disaster management groups were seen patrolling the Hooghly river. Closed-circuit television cameras were installed at certain ghats to avoid mishaps.More than 2,700 community pujas were organised in the city this year and their idols were to be immersed in the river. Arrangements were made for the immersion of idols at around 13 river ghats. Over 200 volunteers were engaged by the civic body at the various locations.There will be no immersion on October 5 because of Eid. They will resume on October 6 after 8 pm, it was announced. It is a Bengali ritual that Goddess Lakshmi cannot be worshipped before bidding farewell to Goddess Durga. So the immersion has to be completed before Lakshmi Puja on October 7, the West Bengal government had announced earlier this month.
Excessive use of internet may significantly increase the risk of mental health problems such as depression and anxiety, especially among college-going students, a study has found.The findings showed that individuals with internet addiction had more trouble dealing with their day-to-day activities, including life at home, at work/school and in social settings. They had problems with planning and time management, greater levels of attentional impulsivity as well as attention deficit hyperactivity disorder (ADHD). Also Read – Add new books to your shelfInternet addiction may also be strongly linked to compulsive behaviour and several other addiction in students, the study said. “This leads us to a couple of questions like are we grossly underestimating the prevalence of internet addiction and are these other mental health issues a cause or consequence of this excessive reliance on the internet?” said lead researcher Michael Van Ameringen from the McMaster University in Canada. The study may also have practical medical implications. Also Read – Over 2 hours screen time daily will make your kids impulsive“If you are trying to treat someone for an addiction when in fact they are anxious or depressed, then you may be going down the wrong route. We need to understand this more, so we need a bigger sample, drawn from a wider, more varied population,” Ameringen added. The Internet Addiction Test (IAT) developed in 1998 prior to the widespread use of smartphone technology, is the only standard test used to measure excessive reliance on the internet. However, over the last 18 years internet use has changed radically with a substantial number of people working online, using social media among others, round the clock.“We were concerned that the IAT questionnaire may not have been picking up on problematic modern internet use, or showing up false positives for people who were simply using the internet rather than being over-reliant on it,” Ameringen said. For the study, the team surveyed 254 students and correlated internet use with general mental health and wellbeing. Only 33 students met screening criteria for internet addition, according to the IAT. The research team also administered a further series of self-reported tests to see how the internet addicts compared to the others in the survey on areas such as symptoms of depression and anxiety, impulsiveness, inattention and executive functioning, as well as tests for ADHD. The results were presented at the European College of Neuropsychopharmacology (ECNP) conference in Vienna, recently.
Joggers are less likely to experience knee and hip osteoarthritis compared to sedentary individuals and competitive runners, says a study. As such running at a recreational level for up to 15 years – and possibly more – may be safely recommended as a general health exercise.”The principal finding in this study is that, in general, running is not associated with osteoarthritis,” said lead author Eduard Alentorn-Geli from the Department of Orthopedic Surgery, Mayo Clinic in Rochester, Minnesota, US. “The novel finding in our investigation is the increased association between running and arthritis in competitive, but not in recreational runners,” Alentorn-Geli said. The international team of researchers in Spain, Sweden, Canada and the US aimed to evaluate the association of hip and knee osteoarthritis with running and to explore the influence of running intensity and years of exposure on that association. The researchers did a systematic review of several studies investigating the relationship between running and arthritis of these weight-bearing joints. Also Read – Add new books to your shelfRunners were considered “competitive” if they were identified themselves as professional/elite athletes or participated in international competitions. Recreational runners were those individuals who ran in a nonprofessional, or amateur, context. They found that only 3.5 per cent of recreational runners developed hip or knee arthritis. This was true for both male and female runners.Remaining sedentary and forgoing running for exercise was associated with a rate of knee and hip arthritis of 10.2 per cent, while training and running competitively increases the incidence of arthritis in these joints to 13.3 per cent.
With home owners becoming design conscious nowadays, it is crucial for the kitchen design to be exciting as well as functional. Ensure the kitchen is well lit, and the space has high-tech tools and easy to reach shelves.Experts give a lowdown on the trends for kitchens: High Tech tools: Technology is becoming a dominant part of the kitchen now. From the blender and microwaves to auto clean chimneys, people are relying on gadgets to help make the kitchen a space cleaner, practical and maximise cooking efficiency. Also Read – Add new books to your shelfStatement kitchen shelves: Open shelving is becoming increasingly popular with homeowners as it provides the perfect space to decorate with succulents and accessories. However, for consumers who wish to minimise the problem of dust can opt for closed shelves with decorative handles, dark colours and patterns to create a rich and luxurious atmosphere. Multipurpose kitchen islands: Kitchen islands are no longer an afterthought but have emerged as the ‘jack of all trades’. They are meant to create an impact while attending to multiple uses by the homeowners. Storage is an important element of a well-designed kitchen and kitchen islands are working even harder for us now with better utilisation of space to stow away built-in appliances like microwave and an oven to help the space look clutter-free. Also Read – Over 2 hours screen time daily will make your kids impulsiveLight it up: Kitchen is a multi-activity space and hence needs multiple layers of light to suit both the functional purpose and the design elements. Task lighting and ambient lighting are imperative to aid the functional use, while accent lighting and decorative lighting help enhance the aesthetics of the space. A kitchen also needs adequate horizontal and vertical illumination for efficient usage, and to enable both owners and guests to have an experiential culinary experience with decorative hues.Two-tones are better than one: The two-toned theme gives depth to the kitchen making it look bespoke. It is always advisable to use darker colours at the bottom and lighter shades going up. This makes the kitchen look bigger as the lighter shades on the upper cabinets draws the eyes aloft.The two colors or materials that you choose can either be bold and vibrant or subtle depending on your personal style.
Khadi once again won the accolades from Vice President of India – M Venkaiah Naidu. On November 19, Naidu visited the exclusive stall of Khadi and Village Industries Commission (KVIC) at Ambedakar International Center, before chairing the Commemorative Event of 150th Birth Anniversary of Mahatma Gandhi, organised by FICCI – Aditya Birla CSR Centre for Excellence.KVIC Chairman Vinai Kumar Saxena welcomed him with the shawl and momento there. On the inspiring event of commemorating 150th Birth Anniversary Celebrations of Rashtrapita Mahatma Gandhi, Venkaiah Naidu, Vice President of India presented a cheque of Rs 32, 00,000/– towards sponsorship of 202 Charkhas to V K Saxena, Chairman KVIC, in the presence of Rajashree Birla, wife of Aditya Birla. Also Read – Add new books to your shelfThe donation was sponsored by Aditya Birla Centre for Community Initiative and Rural Development under the auspices of FICCI. Later, addressing the function, Naidu said that for Gandhi, Khadi was not just a political icon or a symbol of national pride, it was also a way to empower the rural economy. “Today we see a disturbing trend of distress migration from rural to urban areas. Our rural economy is weak and fails to provide enough opportunities for livelihood. It is time India honors the Mahatma’s wishes and goes back to its villages. Real growth will happen in India when we are able to empower rural India, especially our farmers, our weavers and our craftsmen,” he said. Also Read – Over 2 hours screen time daily will make your kids impulsive”As Gandhi himself said that the spinning-wheel represents the hope of the masses and the Charkha supplemented the agriculture of the villagers and gave it dignity, being the friend and solace of the rural women and keeping the villagers from idleness, I am extremely obliged by the generosity of the Aditya Birla Centre for Community Initiative and Rural Development, for donating Rs 32 lakh cheque to the KVIC family,” said Chairman KVIC.
Kolkata: The Kolkata Municipal Corporation will urge the police to ensure that no tobacco is sold within 100 metres from the premises of educational institutions, Mayor Firhad Hakim said on Saturday.Hakim said the law is not enough to deter smokers to give up smoking or consume fried tobacco. There should be more awareness in society and on social media against it. The KMC has proposed to launch massive awareness campaigns and oral health check-ups in every ward. He felt that social media should be used to create awareness among people. “We get so many things on social media and the platform can be used to create awareness requesting the smokers to give up the deadly habit.” He said everyone should take a pledge to help a smoker to give up cigarette. “It is difficult to give up the habit of smoking but the smokers should be encouraged as it affects one’s health badly,” he maintained. It may be mentioned that the Barrackpore Commissionerate has stopped selling of tobacco within 100 metres of school premises. Though the law bans smoking in public places, few people follow it and there are no agencies to enforce the law.
Syracuse point guard John Gillon finished off an impressive 26-point night with a dagger three at the buzzer to give the Orange a 78-75 win over Duke. The shot sent the Carrier Dome into a frenzy.One fan captured the shot, and the insane courtstorming aftermath on video from his floorside seat.The TV broadcast doesn’t come anywhere close to capturing the insanity of the moment as well as this video. It’s like being caught in a magical celebration blender.Experience the joy, unless you’re a Dukie:Creds to @tbdoyle1 for an unreal video, great win cuse! #OrangeNation?? pic.twitter.com/VTYIHso6DD— Sean Connors (@Seanconnors24) February 23, 2017
Nevada Head Coach Eric Musselman was jacked out of his mind after his Nevada team beat Texas in an NCAA Tournament first round overtime thriller. He also happens be a fan of dropping the f-bomb.America found this out when a TBS camera went to the Wolf Pack locker room to get a shot of the team reaction after the win. What they ended up getting was Musselman dropping some f-bombs on live TV as he congratulated his team. No seven second delay here.You can’t blame Musselman. Going to a live reaction shot seconds after a huge win without the delay button at the ready is a big f—–g mistake.Watch Musselman address his f—–g team.Eric Musselman is P happy about Nevada’s win pic.twitter.com/mQL49rmtfa— Rob Lopez (@r0bato) March 16, 2018