Physics team calculates that graphene disks could be complete optical absorbers

August 31, 2019

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first_imgTaking it all in. A theoretical analysis suggests that an array of graphene dots could perfectly absorb light of the right frequency. A. Manjavacas & F. J. García de Abajo/IQFR-CSIC Explore further © 2011 PhysOrg.com Taken alone, graphene (a layer of carbon just one atom thick) isn’t much good at absorbing light, with just a 2.3% absorption rate. But if it were made into very tiny dots or nanodisks the team suggests, plasmons could be exploited to increase the absorption rate. Plasmons are oscillations of electrons at the quantum level and interact with light because of the electrical field they generate. To cause these oscillations to occur in graphene, a small electrical charge could be applied and changing the amount of charge would change the amount of oscillation, which would mean the amount of light interaction could be modified by adjusting the amount of charge as well. Because of this, a mathematical formula can be used to describe just the right amount of charge needed to cause the oscillations to interact with all of the available light. As it turns out, the amount of charge needed to make that happen is the amount necessary to cause the frequency of the oscillations to match the frequency of the light. But, in order to create just the right electrical field, the graphene must be manipulated in such a way as to allow for fine control of the oscillations, and that’s where shaping them into disks comes in. Making them just the right size should in theory, allow researchers to create the optimum electrical field that would allow for 100% light absorption. Important also is the placement of the nanodisks in relation to one another. Too close and they will interfere with one another while too much distance would result in less than perfect light absorption due to an uneven electrical field.The next step in this research effort will, of course, entail the creation of an actual physical material with nanodisks in it, to ensure the real world product matches the theory. If all works out as planned, new superefficient optical devices, such as spectrometers, could result. 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) — In optical devices designed and used to collect light, there has always been a loss of light due to reflection, now, new research by a team of physicists from Spain and England has found, via calculation, that if charged graphene disks of just the right size were made and placed the right distance from one another, they should be able to achieve 100% light absorption. On the team were Sukosin Thongrattanasiri and Javier García de Abajo from Spain and Frank Koppens from the UK. Together they have published a paper in Physical Review Letters describing their research.center_img Journal information: Physical Review Letters More information: Complete Optical Absorption in Periodically Patterned Graphene, Phys. Rev. Lett. 108, 047401 (2012) DOI:10.1103/PhysRevLett.108.047401AbstractWe demonstrate that 100% light absorption can take place in a single patterned sheet of doped graphene. General analysis shows that a planar array of small particles with losses exhibits full absorption under critical-coupling conditions provided the cross section of each individual particle is comparable to the area of the lattice unit cell. Specifically, arrays of doped graphene nanodisks display full absorption when supported on a substrate under total internal reflection and also when lying on a dielectric layer coating a metal. Our results are relevant for infrared light detectors and sources, which can be made tunable via electrostatic doping of graphene.via Physics Focus Citation: Physics team calculates that graphene disks could be complete optical absorbers (2012, February 1) retrieved 18 August 2019 from https://phys.org/news/2012-02-physics-team-graphene-disks-optical.html Tunable graphene device demonstrated: First tool in kit for putting terahertz light to worklast_img read more


Simons algorithm run on quantum computer for the first time—faster than on

August 31, 2019

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first_img D-Wave and predecessors: From simulated to quantum annealing Experimental setup. Credit: arXiv:1410.3859 [quant-ph] Citation: Simon’s algorithm run on quantum computer for the first time—faster than on standard computer (2014, November 17) retrieved 18 August 2019 from https://phys.org/news/2014-11-simon-algorithm-quantum-timefaster-standard.html A quantum computer is a computing device that relies on quantum bits (qubits) rather than the standard digital bits that have been used by most every computing device made. It’s believed that such a computer would be able to run certain algorithms faster or more efficiently than standard computers due to their ability to take advantage of quantum mechanics properties such as entanglement and superposition. Until now, however, it’s not been possible to run algorithms created specifically for such machines, to test out this theory.In this new effort, the team ran what is known as Simon’s algorithm, for Daniel Simon, who, twenty years ago, came up with an algorithm designed specifically to run faster on a quantum computer than it would, on a standard computer. Its purpose is to figure out whether a black box returns a unique output for every possible input. The team ran the simplest version of the algorithm on a quantum computer that used just six qubits, and report that it took just two iterations to solve the problem, where it would take a normal computer three. That may not seem like much, but it is believed that as more qubits are added, the larger the difference would be between the two approaches, which means, the quantum computer would be able to solve the algorithm much faster, or technically, more efficiently than standard computers. That’s the good news. The bad news is that thus far, there is no practical benefit to running Simon’s algorithm—its sole purpose is to show that for one algorithm, the quantum computer does better.But that’s not the end of the story, showing that one such algorithm can return a result more quickly on a quantum computer offers researchers hope that other algorithms, such as Shor’s algorithm (which can be used to factor large numbers into their primes—an important part of encryption schemes) could be run much faster as well. © 2014 Phys.org Explore further More information: Experimental Realization of a One-Way Quantum Computer Algorithm Solving Simon’s Problem, Phys. Rev. Lett. 113, 200501 – Published 11 November 2014 dx.doi.org/10.1103/PhysRevLett.113.200501 . On Arxiv: arxiv.org/abs/1410.3859ABSTRACTWe report an experimental demonstration of a one-way implementation of a quantum algorithm solving Simon’s problem—a black-box period-finding problem that has an exponential gap between the classical and quantum runtime. Using an all-optical setup and modifying the bases of single-qubit measurements on a five-qubit cluster state, key representative functions of the logical two-qubit version’s black box can be queried and solved. To the best of our knowledge, this work represents the first experimental realization of the quantum algorithm solving Simon’s problem. The experimental results are in excellent agreement with the theoretical model, demonstrating the successful performance of the algorithm. With a view to scaling up to larger numbers of qubits, we analyze the resource requirements for an n-qubit version. This work helps highlight how one-way quantum computing provides a practical route to experimentally investigating the quantum-classical gap in the query complexity model. , arXiv (Phys.org) —A team of researchers working in South Africa has reported that they’ve successfully run Simon’s algorithm on a quantum computer for the first time. In their paper published in Physical Review Letters, the team describes how they ran the algorithm, the results they found and what doing so means for the future of quantum computing. Journal information: Physical Review Letters 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


New glass almost as tough as steel

August 31, 2019

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first_img More information: Gustavo A. Rosales-Sosa et al. High Elastic Moduli of a 54Al2O3-46Ta2O5 Glass Fabricated via Containerless Processing, Scientific Reports (2015). DOI: 10.1038/srep15233AbstractGlasses with high elastic moduli have been in demand for many years because the thickness of such glasses can be reduced while maintaining its strength. Moreover, thinner and lighter glasses are desired for the fabrication of windows in buildings and cars, cover glasses for smart-phones and substrates in Thin-Film Transistor (TFT) displays. In this work, we report a 54Al2O3-46Ta2O5 glass fabricated by aerodynamic levitation which possesses one of the highest elastic moduli and hardness for oxide glasses also displaying excellent optical properties. The glass was colorless and transparent in the visible region, and its refractive index nd was as high as 1.94. The measured Young’s modulus and Vickers hardness were 158.3 GPa and 9.1 GPa, respectively, which are comparable to the previously reported highest values for oxide glasses. Analysis made using 27Al Magic Angle Spinning Nuclear Magnetic Resonance (MAS NMR) spectroscopy revealed the presence of a significantly large fraction of high-coordinated Al in addition to four-coordinated Al in the glass. The high elastic modulus and hardness are attributed to both the large cationic field strength of Ta5+ ions and the large dissociation energies per unit volume of Al2O3 and Ta2O5. Citation: New glass almost as tough as steel (2015, November 4) retrieved 18 August 2019 from https://phys.org/news/2015-11-glass-tough-steel.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 Researchers find out why high-performance glass flows, and how fast Glass that does not break when dropped or when struck by another object would be useful in a wide variety of applications, from automobile windows, to skyscrapers to smartphones and tablets. For that reason, scientists have been searching for ways to make traditional glass stronger. One of those ways has been to add larger amounts of an oxide of aluminum to the mix, specifically, alumina, because it has one of the highest dissociation energies among oxides. Prior research has shown that glass made with such an addition would be much stronger than traditional glass. Researchers have been prevented from creating such a glass, however, because of a problem in the production process—when more alumina is added to the mix while the glass is being made, silicon dioxide crystals develop where the mix meets the surface that is holding it, making the end product worthless as a glass. In this new effort, the researchers found a way around this problem—by removing the container from the process.The new process involves causing the mix to be held in the air while it is forming, by pushing it from below with oxygen gas and then using a laser as a spatula to mix the materials together. The end result is a glass with more alumina in it than any other produced to date—a glass that the team reports is transparent, colorless and extremely hard. Testing showed it to be stronger than most metals, and almost as strong as steel.The only thing holding up the production of shatter-proof smartphone screens using the new glass is that the team still needs to find a way to convert their method to a mass production process—they appear confident that such a way will be found, as they promise to find a way shortly.center_img Journal information: Scientific Reports (Phys.org)—A team of researchers with The University of Tokyo and Japan Synchrotron Radiation Research Institute has created a type of glass that is stronger than many metals. In their paper published in the journal Scientific Reports, the researchers describe how they overcame one of the major hurdles in creating glass imbued with extra amounts of an oxide of aluminum, by using what they call aerodynamic levitation. © 2015 Tech Xplore Transmittance spectrum of the 54Al2O3-46Ta2O5 glass in the UV/vis region. The inset picture shows the glass sample used for the transmittance experiment. Credit: (c) 2015 Scientific Reports (2015). DOI: 10.1038/srep15233last_img read more


New calcium phosphate foam could help repair damage due to osteoporoses

August 31, 2019

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first_img Layered approach may yield stronger, more successful bone implants 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. For over a century, surgeons have used various types of calcium phosphate cements (CPCs) to repair bones that have been damaged due to trauma, which has worked very well for a variety of circumstances. One area where they have not worked well, however, has been in repairing bone that has degenerated due to diseases such as osteoporoses. The problem has been that conventional CPCs are microporous, but not macroporous—the difference is in the size of air cavities inside of the material. To be useful for repairing bones that have degenerated, the cavities need to be larger than 50 nanometers. In this new effort, the research team reports that the foam they have developed meets that criterion.The foam was made by putting a silanised-hydroxypropyl methylcellulose hydrogel in one syringe and a conventional CPC in another syringe. After pumping air into the CPC syringe, the two syringes were connected together and then both plungers were pushed simultaneously, causing the two to mix, along with air. The result was cavity formation evenly throughout the merged material. The resulting foam was tested by nicking the bones of test rabbits and then injecting the foam into the area to see if it would fill in the missing bone area, serving as a place-holder while new bone grew in to fill the gap. The researchers report that there was no noticeable toxic impact on the rabbits and that new bone grew as hoped into the injured sites, offering hope that it could be used to repair similar injuries in humans and perhaps even as a method for rejuvenating bone that has deteriorated due to disease.The team plans to conduct more testing of the material with the goal of taking it to clinical trials one day soon as both a tool for treating traumatized bones and for helping people with bone diseases. SEM images of the fracture surfaces of Si-HPMC foamed CPCs with different volumes of air entrained. Credit: (c) Acta Biomaterialia, Available online 26 November 2015. doi:10.1016/j.actbio.2015.11.055 © 2015 Phys.orgcenter_img (Phys.org)—A team of researchers affiliated with several institutions in France has developed a type of injectable foam that may serve as a means for treating osteoporoses and other bone degenerative diseases. The team has published a paper in the journal Acta Biomaterialia describing how they came up with the foam, how it works and the uses to which it might be put. Citation: New calcium phosphate foam could help repair damage due to osteoporoses (2015, December 23) retrieved 18 August 2019 from https://phys.org/news/2015-12-calcium-phosphate-foam-due-osteoporoses.html Journal information: Acta Biomaterialia More information: A simple and effective approach to prepare injectable macroporous calcium phosphate cement for bone repair: Syringe-foaming using a viscous hydrophilic polymeric solution, Acta Biomaterialia, Available online 26 November 2015. DOI: 10.1016/j.actbio.2015.11.055AbstractIn this study, we propose a simple and effective strategy to prepare injectable macroporous calcium phosphate cements (CPCs) by syringe-foaming via hydrophilic viscous polymeric solution, such as using silanized-hydroxypropyl methylcellulose (Si-HPMC) as a foaming agent. The Si-HPMC foamed CPCs demonstrate excellent handling properties such as injectability and cohesion. After hardening the foamed CPCs possess hierarchical macropores and their mechanical properties (Young’s modulus and compressive strength) are comparable to those of cancellous bone. Moreover, a preliminary in vivo study in the distal femoral sites of rabbits was conducted to evaluate the biofunctionality of this injectable macroporous CPC. The evidence of newly formed bone in the central zone of implantation site indicates the feasibility and effectiveness of this foaming strategy that will have to be optimized by further extensive animal experiments.last_img read more


Budgies found to fly at just two speeds

August 31, 2019

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first_img Learning about the birds and the bees helps aid flight People have been enviously watching birds fly around for hundreds of thousands of years, but until now, no one has apparently noticed that they fly at only two speeds: fast and slow. This discovery came about as the two researchers were conducting experiments with budgies to learn more about how they respond to changes in their surroundings as they fly. They set several flying individually through a tapered tunnel, noting how they behaved, while also recording their flight speed. In checking the data, they found that all of the birds flew at just two speeds. They flew in fast mode when there were no obstructions and when going longer distances, then reverted to slow mode at a certain point in the tunnel when they gauged it narrow enough to do so. They noted that their slow mode was approximately half the speed of fast mode. They also noted that the faster mode of flight was the most efficient for the birds.In looking even more closely at the data, the researchers found that the birds did not taper their flight speed, instead, the transitioned almost immediately from fast to slow and vice-versa, which is in stark contrast to insects—they speed up and slow down progressively. The researchers suggest the two speed modes for the birds offer some advantages, one of which is that is that it likely makes it easier for the birds to calculate distance, which is done by optic flow. Also, slow mode very clearly helps them avoid running into things.The research by the team was conducted on just one species (10 budgies conducting 80 flights in total), thus it is still not clear if all bird species fly at just two speeds. Prior research has suggested there might be some exceptions, such as some species that fly at an accelerated speed during part of their long migrations. More information: Budgerigar flight in a varying environment: flight at distinct speeds? Published 21 June 2016.DOI: 10.1098/rsbl.2016.0221 , http://rsbl.royalsocietypublishing.org/content/12/6/20160221AbstractHow do flying birds respond to changing environments? The behaviour of budgerigars, Melopsittacus undulatus, was filmed as they flew through a tapered tunnel. Unlike flying insects—which vary their speed progressively and continuously by holding constant the optic flow induced by the walls—the birds showed a tendency to fly at only two distinct, fixed speeds. They switched between a high speed in the wider section of the tunnel, and a low speed in the narrower section. The transition between the two speeds was abrupt, and anticipatory. The high speed was close to the energy-efficient, outdoor cruising speed for these birds, while the low speed was approximately half this value. This is the first observation of the existence of two distinct, preferred flight speeds in birds. A dual-speed flight strategy may be beneficial for birds that fly in varying environments, with the high speed set at an energy-efficient value for flight through open spaces, and the low speed suited to safe manoeuvring in a cluttered environment. The constancy of flight speed within each regime enables the distances of obstacles and landmarks to be directly calibrated in terms of optic flow, thus facilitating simple and efficient guidance of flight through changing environments. Journal information: Biology Letters Citation: Budgies found to fly at just two speeds (2016, June 22) retrieved 18 August 2019 from https://phys.org/news/2016-06-budgies.html Explore furthercenter_img (Phys.org)—A pair of researchers has found that at least one type of birds flies at just two speed levels. In their paper published in the journal Biology Letters, Ingo Schiffner and Mandyam Srinivasan with the University of Queensland in Australia, describe tunnel tests they conducted with budgerigars, what they found and offer some theories on why the birds fly at just two speeds. © 2016 Phys.org Male budgerigar. Credit: Benjamint444/Wikipedia/GFDL 1.2 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


How close to invisible can a mirror be

August 31, 2019

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first_imgCredit: US Environmental Protection Agency Explore further Using concepts from billiards and optics, he has shown that the answer depends on the object’s volume and the minimum radius of an imaginary sphere that contains the object. The work is published in a recent issue of the Proceedings of The Royal Society A.In the study, Plakhov, who is at the University of Aveiro in Portugal and the Institute for Information Transmission Problems in Russia, begins by defining a “visibility index.” For objects that are close to invisible, the visibility index is close to zero, while objects that are clearly visible have a higher visibility index. The visibility index is determined by the angles at which light rays deviate when they reach an object. For perfectly invisible objects, the light rays pass straight through, so their angles do not change at all. In contrast, objects that are clearly visible cause large deviations in the light rays’ angles. In order to define the visibility index, Plakhov adopted ideas from billiard theory, as light rays reflecting off mirror-surfaced objects can be considered analogous to billiard balls bouncing off the sides of a billiard table. Using the billiard model, he then showed that the visibility index can never be smaller than a certain positive value that is a function of the object’s volume and the radius of an invisible sphere that contains the object. That is, he determined that the visibility index never reaches zero, but has a minimum non-zero value, indicating how close to invisible a mirror-surfaced object can theoretically be.For now, however, this minimum value is only an estimate and not a final answer, and Plakhov plans to further pinpoint this value in the future.”The lower estimate obtained in the paper is far from being sharp, and further work is needed to improve it,” Plakhov told Phys.org. “In particular, it is not clear if there exists a sequence of bodies with fixed volume and the diameter going to infinity, and with vanishing visibility index.”Also, since it’s possible for objects to exist which are invisible only from certain directions, Plakhov plans to study a modified visibility index related to a chosen set of directions of observation. The question of the invisibility of mirror-surfaced objects is not just a mathematical curiosity, but it also has potential practical applications. For instance, mirrors are much cheaper and easier to fabricate than metamaterials, which are currently being investigated for their invisibility properties. The ability to create the effect of invisibility—especially when viewed from multiple directions—has a wide variety of potential uses, including military applications (hiding submarines and aircraft), medical imaging (cloaking internal organs that are blocking an area of interest), and improving the performance of small-scale electronics devices by carefully controlling the flow of light and heat.”The work of mine and my collaborators has attracted the attention of the scientific community to the problem of mirror invisibility, which I consider to be of great importance,” Plakhov said. “We are in the beginning of this journey, and I believe that the most significant discoveries are yet to come.” Citation: How close to invisible can a mirror be? (2017, October 6) retrieved 18 August 2019 from https://phys.org/news/2017-10-invisible-mirror.html More information: Alexander Plakhov. “The problem of camouflaging via mirror reflections.” Proceedings of The Royal Society A. DOI: 10.1098/rspa.2017.0147 , Also at arXiv:1702.04199 [math.MG] (Phys.org)—In 2011, mathematicians Alexander Plakhov and Vera Roshchina proved that objects with mirror surfaces cannot be perfectly invisible. Now in a new study, Plakhov has returned to the problem, asking just how close to invisible a mirror-surfaced object can be.center_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. © 2017 Phys.org Scientists create invisible objects without metamaterial cloaking Journal information: Proceedings of the Royal Society Alast_img read more


Mitochondria and the art of DNA maintenance

August 31, 2019

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first_img , Nature Communications One might then ask: Do mitochondria contain linear DNA? The correct answer to this second, and somewhat sneaky question is, again, affirmative. Nucleoids in mitochondria do need to be circular in order for the machinery that copies their DNA to work. Transcription in mitochondria is directly coupled to replication, and also requires circularized nucleoids. However, linear nucleoids exist in a healthy state of equilibrium with circular nucleoids within the mitochondria network. This provides a way for the cell or tissue to control the abundance of mtDNA directly, and by implication, the state and abundance of mitochondria.What is the fate of linear mtDNA? Double-strand breaks (DSBs) are continually generated as a byproduct of replication stalling, or from failed DNA repair of damaged and incorrectly replicated nucleotides. Although nucleoids can normally replicate themselves in about 90 minutes, DNA polymerases are hung out to dry when nucleotide stores are insufficient or become improperly balanced. When that happens, things break down; essential factors begin to leave the replication-transcription complex, and proper proofreading becomes a frequent casualty.Complete double-strand breaks are generally considered to be the worst of the worst when it comes to DNA damage. Loose ends are basically live wires that can readily recombine in dangerous ways to wreak transgenerational havoc. Linear chromosomes in the nucleus use telomeres to guard their loose ends from degradation by ubiquitous nucleases. Replication of these special protective features requires a different process from replicating the rest of the chromosome. While mitochondria are shown to be capable of repairing some DSBs using homologous recombination and DNA ligases, the more common way of dealing with DSBs is to chomp up with exonucleases.Until recently, it was not understood how linear mtDNA was degraded. Authors of a new paper in Nature have now shown that the same exact machinery responsible for replicating mtDNA also polices it for breaks. The three main proteins involved, the helicase TWNK, the polymerase POLG, and the exonuclease MGME1, were found to bind together into a functional unit. TWNK first acts to unwind the DNA so that the individual strands can be accessed. MGME1, which has a strong bias for operation in the 5′ to 3′ direction of single-stranded DNA then begins to digest one strand. Mitochondria showing nucleoid content. Credit: ScienceStruck 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. Mitochondria with nucleoids Credit: msu.edu Explore further Citation: Mitochondria and the art of DNA maintenance (2018, May 11) retrieved 18 August 2019 from https://phys.org/news/2018-05-mitochondria-art-dna-maintenance.html Humans have 46 chromosomes, and each one is capped at either end by repetitive sequences called telomeres. If you ask a biologist if humans have circular DNA, they are likely to say ‘no.’ That is because eukaryotic cell nuclei have linear chromosomes, while prokaryotes have circular nucleoids and plasmids. However, biologists also know that most of our cells have mitochondria that do, in fact, retain the circular DNA, the chromosome ‘M,’ which they inherited from their prokaryotic ancestors.center_img More information: Viktoriya Peeva et al. Linear mitochondrial DNA is rapidly degraded by components of the replication machinery, Nature Communications (2018). DOI: 10.1038/s41467-018-04131-w © 2018 Phys.org Since the subunits of POLG are encoded in the nucleus (within the mitonuclear genome) it may be possible to correct buggy versions of POLG using CRISPR gene editing techniques. Mutations within the mtDNA itself frequently result in other kinds of mitochondrial disorders. Sometimes, specific combinations of normally benign mtDNA variants can even create disease states. Unfortunately, CRISPR doesn’t make much sense for editing the minimal, compact genomes of mitochondria. There are very few candidate sites where CRISPR would even be physically possible in mtDNA. For these kinds of issues, new designer nucleases like TALENs (Transcription Activator-like Effector Nucleases) and ZFNs (Zinc Finger Nucleases) that can cut DNA at specific locations have recently become available. The beauty of the so-called disposable genome of mitochondria, is that full-blown gene editing isn’t necessary to fix disease. All one need do is crack open any offending nucleoids, and then let the endogenous degradation systems do their thing. The main difficulty, here, is figuring out where the bad nucleoids are predominantly located, and how to exclusively target them. It is widely appreciated that different tissues can be preferentially depleted of healthy mitochondria, or selectively accumulate damaged mtDNA. For example, fibroblasts and skeletal muscle are associated with specific bodily pathologies, while the retina and cerebellum with specific insults to nerve function.Assuming one can replenish mtDNA via direct injection at key access points in the body, it would be possible to improve stocks across the board by alternate cycles of mitochondrial binging and purging. In other words, good mitochondria, in suitably encapsulated from, could be periodically transplanted into blood, CSF, or muscle. Then, after some delay, nuclease therapy could alternately introduce DSBs and a period of subsequent degradation. This would have the effect of diluting away the bad mitochondria to any arbitrarily small concentration, at least in theory. Such a strategy would not even require the nucleases to be perfectly selective in targeting the mutated portions of mtDNA.Another approach, which we might call “mitochondria immunotherapies,” could also be a way to apply more power to the problem of clonally expanding mutant mtDNA. This would operate similarly to the now very successful cancer immunotherapies. In certain disease conditions, such as primary biliary cirrhosis, the immune system mistakenly interprets native mitochondrially localized antigens as foreign enemies. In this case, it is the E2 subunit of the pyruvate dehydrogenase complex found in the mitochondrial matrix that is the culprit. The immune system can also recognize particular de-novo mutated mitochondrial products, as well as prokaryotic features of bare mtDNA. For example, hypomethylated CpG sites or oxidative damaged mtDNA can be highly immunogenic if presented by white blood cells in blood or tissue.Some additional insights (and warnings) into how double-strand breaks might occur and resolve have been provided by researchers Doug Turnbill and Robert Taylor from the Wellcome Center for Mitochondrial Research. In one particular paper, they proposed that mtDNA deletions are most commonly generated during repair of DNA damage as opposed to replication errors. More specifically, they offer that characteristic deletions are initiated by single-stranded segments of mtDNA that were, in turn, generated by exonucleases attacking double-strand breaks. The free single strands would be able to anneal with microhomology or repeat sequences on other single-stranded mtDNA, and undergo repair to an intact but partially deleted state.In a later paper, these researchers reported that patients with mitochondrial disease who showed considerable neuronal loss in the substantia nigra all had POLG mutations. Considering the fact that in completely normal and healthy people, about half of all the mtDNA found in neurons of their substantia nigra harbors at least one deletion, developing treatments to fix these predictable insults should be a critical focus of the rapidly developing field of mitochondrial medicine. Journal information: Nature The key insight the authors made is that the other strand is simultaneously processed by the native 3′ to 5′ exonuclease activity built into the primary subunit of the POLG polymerase. Introducing specific mutations to eliminate the exonuclease action resulted in a compromised ability to degrade linear mtDNA. POLG mutations are a frequent cause of mitochondrial disease, especially in mtDNA depletion and deletion disorders. Sizeable databases now exist just to keep track of newly reported POLG variants and all their known effects. Scientists discover novel mechanism that protects mitochondrial DNAlast_img read more


Nothing wrong with being gay

August 31, 2019

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first_imgMy husband had a previous marriage. In fact, this is our second marriage. Though I have no association with my ex, he is in very good terms with his previous wife. I feel jealous and insecure. How should I cope with this?Name unknown, AgraSometimes you have to express and demand. If you really can’t tolerate this, then be transparent and let yourself go. But, please understand, some relationships are impossible to forget. May be his ex is a very close friend and the friendship is the only reason for the closeness. Try to understand him and try to be his closest companion. Love replaces love, anger will only spoil it. Also Read – ‘Playing Jojo was emotionally exhausting’As I’m growing older, I am losing interest in women. I don’t feel turned on by any level of closeness. Am I turning gay? I’m feeling very guilty about it.RT, N DelhiAlways remember that you are not alone. If you are gay, know that there are many, many gay, lesbian, bisexual and straight people all over the world who have been in your situation. The doubt. The nagging guilt. The uncertainty. They’ve all been through it. Try not to think of your new     sexual revelation as a burden; instead, think of it as a liberation. There is nothing wrong with being gay. You are not any less of a person for being who you are. Also Read – Leslie doing new comedy special with Netflix  My daughter-in-law is from a very affluent background and time and again she compares our present with her past. Sometimes that leads to major hassles between my elder son and his family. How do I solve this problem?Janaki Dave, GujaratDid you try explaining this to her? Sometimes we appear rude, but we are probably ignorant. Our silly, immature self neglects small yet significant things. Try to sit down with your son and your daughter in law to explain where things are going wrong. Let them understand your concern. I’m sure, the matter is trivial and she will understand in future. While having sex, my boyfriend uttered the name of another girl. Upon asking, he denied this and is trying his best to prove me wrong! I have lost faith. Am I stupid?Miss GuptaWhy don’t you have faith in your love and trust him once? Why can’t you erase the memory of one incident and believe him? It is impossible to comment on your query. This stray incident should be just noted and put on backburner. Keep your sixth sense on. If he’s upto something wrong, it will surely come to light. Have a good life and don’t stress yourself so much. Trust me dear, it’s not worth it!last_img read more


President of Balaram Mandir passes away

August 31, 2019

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first_imgKolkata: Swami Putanandaji (Kalipada Maharaj), president of Balaram Mandir died at the Ramakrishna Mission Seva Pratisthan on Monday evening. He was 92-year-old and had been suffering from liver cancer for the past few months. His mortal remains will be kept at Balaram Mandir on Monday night to facilitate the devotees to show respect to the departed soul. He will be cremated at the Belur Math on Tuesday. Swami Putanandaji was well known for his simplicity and organizational capacity. One of the senior monks of the Ramakrishna Order, he had served at various centres of Ramakrishna Math and Mission. He was the head of Balaram Mandir, one of the important centres of RKM for more than a decade.last_img read more


Six injured in clash in Kolkatas Kidderpore area

August 31, 2019

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first_imgKolkata: Six people were injured today after a bomb was hurled during a clash between two groups in the Kidderpore area here over a dispute over the possession of a local club, a senior police officer said. The groups comprised members of the Young Star Club, of whom four have been arrested, he said.The injured allegedly are members of the club located on the Bhukailash Road area, the officer said.The clash broke out over a dispute over the possession of the club, he said. Also Read – Heavy rain hits traffic, flights”Heated exchanges soon turned into a fight and the local police was called. A bomb was also hurled and in that six persons were injured,” the IPS officer said.”One person is undergoing treatment at a state-run hospital while five others were released after primary treatment. “We are looking into the matter and trying to solve it amicably,” he said.The officer said that a probe has been initiated into the matter. Members of the club lodged complaints against each other at the South Port police station.The situation is peaceful, the officer said.last_img read more


ITC Limited launches pouch milk and curd in city

August 31, 2019

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first_imgKolkata: ITC Limited has launched pouch milk and curd in the city under the brand name ‘Aashirvaad Svasti’.The announcement was made by Hemant Malik, Divisional Chief Executive – Foods, ITC Limited at an event held at ITC Sonar. Keeping in mind the consumer preferences, ITC’s Aashirvaad Svasti pouch milk is pasteurised using a unique ‘Taste-Up” process that makes the milk consistently richer, thicker and tastier. Launched with the proposition ‘Rojkar Ghono Doodh’ (Everyday’s thick milk) Aashirvaad Svasti milk would enable consumers in Kolkata to enjoy thicker and tastier milk, tastier tea, well-set curd and great Also Read – Rain batters Kolkata, cripples normal lifedesserts. Aashirvaad Svasti Dahi is made using a special blend taken from various cultures to give consumers a thick and tasty curd. Aashirvaad Svasti pouch milk and curd packs will feature iconic symbols of Kolkata such as the Howrah Bridge, Victoria Memorial and the Tram. Through this initiative, ITC pays a befitting tribute to Kolkata’s rich legacy and the Company’s long-standing association with the city. All three products will be available at general trade outlets across the city. Aashirvaad Svasti Toned milk is available in convenient pack sizes of 500 ml priced at Rs 21 and 1 liter pack priced at Rs 41. Aashirvaad Svasti Double Toned milk is available in pack sizes of 500 ml priced at Rs 18 and a 240ml pack at Rs 10. It is available in popular SKUs of 200 gm priced at Rs 15 and 400 gm priced at Rs 25.last_img read more


3day exhibition in Kolkata showcases artwork by jail inmates

August 31, 2019

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first_imgKolkata: In a unique initiative, an NGO, with the support of the West Bengal government, is hosting a three-day exhibition to showcase paintings made by the inmates of a correctional home. The show — ‘Aitijya – Our Heritage’ — has given the inmates of Dum Dum Central Correctional Home a platform to display their creativity and earn money for three days, beginning November 19, Chaitali Das, the managing trustee of NGO Rakshak Foundation, said on Tuesday. Also Read – Rain batters Kolkata, cripples normal lifeThirty-four canvases, painted by 10 women inmates and four male inmates, have been regaling art enthusiasts at the Indian Museum courtyard here, on the occasion of ‘World Heritage Week’, she said. “Eight acrylic paintings, themed on the city’s heritage, have already been booked on the first two days. We are expecting the response to get better,” she said. Over the past few years, Rakshak Foundation, with the help of Directorate of Correctional Services, has held several workshops for prison inmates to acquaint them with canvas and paints, Das stated. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killed”As part of these workshops, the women and the men were also taught how to weave the canvas and set it on a frame,” she added. Arun Kumar Gupta, the director general of Correctional Home Services of West Bengal, said the exhibition gave the inmates an opportunity to express themselves through their works of art. “We had started facilitating painting workshops for the women inmates, as well as their children, at Dum Dum Correctional Home to enable them to express their feelings. Later on, four male inmates of the same correctional home also joined the initiative,” he explained. Celebrated painter Wasim Kapoor, who visited the exhibition, congratulated the inmates on their achievement. “The creativity of these prison inmates, who have not been trained earlier in their lives, is no less than that of trained professionals,” he added.last_img read more


Look super cool at your workplace this summer

August 31, 2019

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first_imgAppearances always matter at the workplace, but dressing professionally for office in warmer and humid weather is quite hard. Hence, it is essential to keep oneself updated with fashion trends in scorching heat by opting trends like pastel shades and mixing and matching outfits. Experts suggested a few tips to look cool at workplace:Pastel and neutral coloured shirts like ivory and grey can be worn to get an elegant look and since it does not absorb heat, it is soothing to the eyes. Also Read – Add new books to your shelfPrinted shirt outfit or light check shirt is the best option for men, as it gives them a bold look. Men can wear a light blazer over their vest at the workplace as it enhances the personality.Formal shirts over pencil trousers or narrow pants can also be worn in order to look modest and elegant at workplace. This creates a formal and sophisticated look.One can wear khaki pants to the office and can uplift their fashion statement at the workplace. Also Read – Over 2 hours screen time daily will make your kids impulsiveLight coloured formal suit can also be worn during summer as it gives a formal touch to an individual. Nowadays, it is widely chosen by man, as it is more trendy and stylish.White shirt always work at office, as it repels sunlight and is soothing to the eyes.Switching on to blue and gingham can make an individual more fashionable and professional. It not only adds bold colour to the outfit, but also enhances the outlook of an individual.If you are a suit person go for a light fabrics like cotton, linen or any other breathable stuff. Also choose light colours to stay comfortable during the sweltering days. Another way to face summers in style is to stick with a classic outfit that works anywhere and everywhere. A lightweight semi formal white shirt with grey or blue check pants will keep you cool in the hot daysFor meetings and formal events, an unstructured Navy blazer is just perfect. This is one of the most versatile, stylish, and comfortable pieces your wardrobe should have.If you require to wear ties to work, go for a silk-knit ones for summer.last_img read more


KMDA report on Rabindra Sarovar Lakes rich biodiversity

August 31, 2019

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first_imgKolkata: Kolkata Metropolitan Development Authority (KMDA) is preparing a detailed project report (DPR) to conserve the rich biodiversity of the Rabindra Sarovar Lake in south Kolkata.A butterfly park, a nature interpretation centre , naming of the variety of trees on the bank of the Lake and concerted efforts in maintaining the water quality of the sprawling waterbody will be prioritised. Altogether, 379 species of animals have been found in the survey of the fauna and this has been classified into 15 categories. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataThe highest number has been bagged by the birds with 107 varieties being found. The number of butterflies are also reasonably rich with 57 types while 29 variety of ants have been found. The number of fishes in Rabindra Sarobar that has often been the talking point of the visitors is also on the higher side with 40 species being found. “There are a handful species among the fauna that feature in the IUCN Red List of Nearly Threatened but we are very serious about conserving the rich biodiversity. We will be conducting programme on awareness and education from time to time involving school students and common people, ” a senior KMDA official said. Also Read – Lightning kills 8, injures 16 in stateThe urban biodiversity report comprising the flora and fauna in and around the waterbody was officially released in the last month by state Urban Development minister Firhad Hakim. The study has been conducted by a team from various state and Central agencies with A.K. Sanyal of the West Bengal Biodiversity Board being the chairman of the team. We are preparing the DPR on the basis of recommendations by the team and will submit it before the eastern bench of National Green Tribunal in due course. The NGT has imposed ban on littering in or around the lake, bathing in its water, using excessive bright lights around it, washing clothes or utensils, emitting sounds that disturb the birds in the area and entering the lake premises with any kind of plastic bag is forbidden. It may be mentioned that the team has found 131 variety of trees and 34 types of terrestrial macrofungi in and around the waterbody. ” We have already started putting boards with names of the trees along with a short description of them,” the official added. KMDA is also giving special emphasis on desilting of the Lake to improve the water quality of the waterbody. ‘ We will start work soon after the monsoon season which will contribute in keeping the water quality to its best and at the same tome conservation of the species living in the water,” he maintained.last_img read more


Roger Goodell cant stop abusing his power

August 30, 2019

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first_imgNick Wright in for ColinNick says:Jim  Harbaugh makes more than the Governor of Michigan. Answer some questions.In a GQ intereview, Cam Newton said he left the Super Bowl press conference to cry his eyes out. Are you happy now?Diving across the finish line to win a gold medal is totally acceptable.Guests:Dana White – UFC President looks ahead to McGregor/Diaz, whther this fight will be a bigger UFC event than UFC 200, how he avoids overreaching with his power,John Lynch – Former Bucs and Broncos Pro Bowler and Fox NFL Analyst talks about his baseball career, how Bill  Walsh convinced him not to quit football, the upcoming NFL season, and whether he thinks he’s a hall of famer.Michael McCann – Sports Illustrated legal analyst provides legal insight on the four NFL players threatened with suspension by Roger Goodell over the Al-Jazeera report, whether they should just meet with Goodell to avoid the suspension, and if Roger Goodell has too much power.last_img read more


VIDEO Khalil Mack blows past double team to light up Jared Goff

August 30, 2019

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first_imgThe Rams are hoping Jared Goff looks like a new quarterback under rookie offensive whiz-kid Sean McVay, because he looked horrible in his rookie year.Unfortunately, against the Raiders, the “new look” Goff was up against the “same old” Khalil Mack – as in the 2016 NFL Defensive Player of the Year.On this particular play, Mack blew past a double team and planted Goff into the dirt. To be fair to Goff, Mack does this to just about everyone.Khalil Mack swallows Jared Goff whole, oh my goodness pic.twitter.com/4UMDjspEoK— Ben Baldwin (@guga31bb) August 20, 2017 Advertisementlast_img read more


VIDEO Miguel Cabreras smackdown of Yankee catcher leads to insane bench clearing

August 30, 2019

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first_img Advertisement It was just another lazy Summer day at Comerica Park until the bottom of the 6th inning when all hell broke loose. That’s when Miguel Cabrera exchanged some heated words with Yankee catcher Austin Romine, which led to Cabrera taking down Romine.Then all hell broke loose. Benches cleared. Bullpens cleared. All hands on deck. This is nothing but a good, old fashioned, full blown basebrawl.Watch this powder keg explode into insanity in about 3 seconds.I love the one bullpen guy who’s really hustling to get to the brawl pic.twitter.com/gBzaJooYGy— Mike Tunison (@xmasape) August 24, 2017last_img read more


Building a Website for Your Service Business

August 30, 2019

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first_img I get a lot of e-mail from people who think that selling a service over the web must require an entirely different approach than selling a product. They think they’ll need to use an entirely different set of tools and techniques, that their site design will be dramatically different and that to drive visitors to their sites, they’ll need to use some strange, newfangled strategies. This simply isn’t the case.The only real difference between selling a service vs. a product over the web is your focus: When you sell a physical product, every aspect of your site design and sales copy focuses on how the product is going to solve visitors’ needs and benefit them. When you sell a service over the web, the focus is on how you’re going to solve visitors’ needs and benefit them.Once you’ve wrapped your head around this concept, everything else should fall into place. Sales copy strategies…traffic-generation techniques…website design strategies…all the techniques and strategies I’ve mentioned above can be used to dramatically increase the leads you attract, the deals you close and your overall online income. Register Now » Opinions expressed by Entrepreneur contributors are their own. 12 min read Sales Strategies Lately, I’ve been receiving a lot of questions from people selling a service–or thinking about selling a service–over the web, asking what you need to do differently than those people marketing a physical product. It’s a good question. Because while almost all the selling and traffic generation techniques I teach work equally well for both product- and service-based business models, there are a few unique challenges faced by those selling services that warrant special discussion.Challenge #1: You are the product. When you sell a service, you are the product, whether you’re a real estate agent, doctor, lawyer, bed & breakfast owner, auto-mechanic, caterer, hair stylist, fitness trainer, accountant, investment advisor, childcare provider, housekeeper, dog walker, landscaper.whatever. You’re selling your time with the promise of a particular result as opposed to a tangible product.Challenge #2: Your time is limited. Unlike someone selling a physical product that can be stored and shipped on demand, you can only provide as many services as your time allows. And assuming you pause to sleep and eat like the rest of us, this means you’re limited to an 8-hour day. (Okay, 12- to 16-hour days if you love your work as much as I do.)Challenge #3: You must prove your ability to deliver measurable results, while emphasizing flexibility. People will want to see proof that you’ve delivered great results for other clients, but they’ll also want to know that you’re flexible enough to meet their own unique needs. So you must walk a fine line, making sure that you keep confidential client information confidential, while (1) proving that you’ve satisfied the needs of other clients like them with great results and (2) demonstrating your ability to customize your service to meet their personal, unique needs.Challenge #4: You’re using a global medium to attract local business. Service-based businesses frequently rely on local clients. Sure, the owner of a bed & breakfast in Seattle may be thrilled to be attracting clients from Australia’s Gold Coast. But is the landscaper in Seattle going to be equally receptive to securing a weekly hedge trimming and lawn-mowing client from Australia? Probably not. So service-based sites that rely on local customers need to actively pursue sources of local traffic. Growing a business sometimes requires thinking outside the box. In order to overcome these challenges, there are several strategies you can employ.Strategy #1: Establish your credibility. When you sell a service, you’re typically selling a relationship with yourself. And this requires spending more time and effort establishing your credibility and developing a rapport with your visitors than is typically required on a site selling a physical product.For example, a site that sells a product like gift baskets might include some brief “About Us” information that gives details about who the website owners are, why they started their business and how long they’ve been online. However, the majority of the site would focus on establishing the value of the actual product–the gift baskets–and providing detailed information about guarantees, delivery procedures, etc. Including reams of misplaced information about the website owners could actually hurt sales more than help because, in this case, visitors’ chief focus should be directed to the value of the product.When you’re selling a service, however, you are the product. So establishing your credibility–essentially establishing your value–is critical to closing the sale. You need to not only establish the benefits of the service you’re offering but also establish the value of you providing this service.There are a few different ways you can accomplish this. First, you should include a good, professional picture of yourself. And no, the picture of you in your Hawaiian-print shorts and “Kiss the Chef” hat from last year’s summer barbecue won’t do. Giving your visitors a professional image to associate you with will go a long way toward establishing your credibility.Next, you need to include a list of your credentials. However, don’t just give point after point of accomplishments; be sure to state exactly how each of your credentials is going to translate into a benefit for your clients. Don’t make the critical mistake of assuming that visitors to your site can make this leap on their own. Clearly spell out the benefits you offer in your sales copy. For example, if you’re a real estate agent with certification in housing inspection, you shouldn’t just tell your visitors “I’m a certified housing inspector.” Instead you should say, “Not only can I find the best home in the best location for you and your family, but as a certified housing inspector, I can give you an accurate assessment of the home’s structural soundness and let you know about any potential problems to make sure you avoid getting stuck with costly repairs in the years to come!” Doesn’t that sound better than “I’m a certified housing inspector”? Make the benefit obvious!You’ll also need to provide evidence that other clients have been satisfied with your services. Depending on the nature of the service you provide, you may choose to do this in a few different ways. Testimonialsfrom clients are a great way to establish your credibility. An online portfolio of your work might be another option (for example, landscapers might include pictures of well-manicured properties they designed and maintain). However, if the confidentiality of your clients is important, you may need to approach this a bit differently by including more general descriptions of problems you’ve encountered and steps you’ve taken to solve them, with no names or clues that could give away identities. If privacy is important to your clients, then visitors to your site should be able to understand why you can’t reveal names and exact details. But again, don’t assume they’ll know. Be sure to explain this.Strategy #2: Be specific about exactly what you’re offering. We’ve already talked a bit about this, but this is such a common mistake I see website owners making–whether they’re selling a service or a product–that I think it warrants further explanation.You can never assume that providing information about what you’ve done for other clients will enable visitors to your site to make that leap and picture what you’ll be able to do for their businesses. You need to be very, very specific about what you’re offering. To help you do that, look at other similar service providers and ask yourself these questions:Do you offer the same services? More? Less?What makes you different from your competitors?Do you specialize in anything?What kind of guarantee do you offer?How will your services be delivered?Too often, website owners fail to provide their visitors with enough information. Sales copy with a detailed breakdown of the services you provide, with the benefits you offer clearly explained, will be one of the most critical aspects of your site.Strategy #3: Demonstrate your flexibility. As I mentioned earlier, people will not only want to see proof that you’ve delivered great results for other clients, they’ll want to know that you’re prepared to customize your service to meet their own unique needs.So here, again, thorough sales copy that clearly explains how you’re willing to customize your services will be very important. Do your clients typically fall into a few different categories? Can you talk about each group and explain how you adapt and change to meet their individual needs?For example, on his website, the owner of a martial arts school offered basic summary descriptions of his classes. Instead of general descriptions, he’d be better off breaking his sales copy down from his existing summary descriptions into more detailed copy that explains the key differences between his child, teen, and adult classes. By focusing on these client groups separately, he could more closely target their unique needs (and therefore attract more customers) by emphasizing the benefits that apply directly to each.Strategy #4: Make it easy for leads to contact you. Here’s another obvious one. But I bring it up because I’m continually shocked by how difficult some sites make it for visitors to contact them. If you’re selling a service over the web, then you’re generating leads–your goal is to compel visitors to contact you. But just as someone selling a product over the web needs to make a seamless transition between their sales copy and their order form, you need to make a seamless transition between your sales copy and the point of contact.You need to make it easy for your visitors to contact you. Provide an online form, your e-mail address, phone number, fax number, physical mailing address and any other relevant information (like the best times to call you). And make sure this information is highly visible and easily accessible from every page of your site. Why not invite a few honest friends to check out your site and time them to see how long it takes for them to find your contact information? What’s obvious to you may not be obvious to the rest of the world.Strategy #5: Get your site listed in local search directories. Current estimates say 40 percent of search engine queries are now for local businesses and services. When you combine this with research that indicates 92 percent of local searches convert later offline, you can start to see a pattern of consumer behavior.This pattern has also been recognized by the major search portals, as Yahoo!, Google, AOL, and MSN have all recently launched local search services. Even if you don’t have a website, a local listing can provide your business with an online presence, which is increasingly important as consumers routinely use the web to find businesses close to home.Best of all, it’s free and easy to register with these services. And if you don’t yet have a website, Yahoo! is even offering businesses a free five-page website that you can customize with your own logo, text, and links to other sites.Strategy #6:Networkand get listed with professional services websites. While almost all the traffic techniques used to drive visitors to product-based sites can be applied to service-based sites, I’d like to mention a couple that those of you who need local traffic will find useful.1. Network with other local businesses.If you want local traffic, start making personal connections with other local business owners–preferably those with sites of their own. Look for ways to position your service and your site as a resource to their customers, and then request a link on their site or get permission to leave your business cards (printed with your URL, of course) in their lobby or next to their cash register. Even consider rewarding local business owners for sending traffic and leads your way by offering them a special gift, a discount off your service or even a portion of the profits.2. Take advantage of sites like eLance.com. Depending on the type of service you offer, professional services marketplaces like eLance.com, FreeLance.com and Daylo.com may be a great source of clients and leads. Post your qualifications and bid on posted jobs, using your website to help close the deal once you’ve entered into a one-on-one discussion with a potential client.Strategy #7: Encourage referrals and repeat customers. Always, always, always follow up with existing clients! Are they happy with the job you did for them? Is there anything else you can do for them? Do they know anyone else who might benefit from your service? E-mail has made following up with your existing clients extremely easy and cost-effective, so there’s no excuse for not taking advantage of this source of easy extra income. Don’t be afraid to remind previous customers that you’re there. And don’t be afraid to ask for referrals. If you’ve done a good job for someone, they’ll likely be more than happy to refer their friends and business associates to you. But if you don’t ask, they’ll rarely think to do it. Don’t leave this to chance. Final Thoughts July 19, 2005 Free Webinar | Sept. 9: The Entrepreneur’s Playbook for Going Globallast_img read more


South Korea Is Building What Could Be the Future Standard in Wireless

August 30, 2019

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first_imgJanuary 22, 2014 Free Webinar | Sept. 9: The Entrepreneur’s Playbook for Going Global How much would you pay for instant download ability?South Korea’s Ministry of Science and Technology announced plans to spend about $1.5 billion to build a national 5G wireless network to be commercially available by 2020. With the new 5G — which would be 1,000 times faster than most 4G LTE networks — users would be able download a full-length, 800-megabyte film in just one second. Yep, just one second. That’s it.Related: An Accelerated History of Internet Speed (Infographic)The country’s science ministry sees this plan as “preemptive,” noting in a statement on Wednesday, “Countries in Europe, China and the US are making aggressive efforts to develop 5G technology…and we believe there will be fierce competition in this market in a few years.”South Korea is home to tech heavy-hitters like Samsung and LG, and is known for not only being an interconnected nation, but having the fastest internet in the world. The 5G network would not only be a boon for country’s mobile and telecommunications industries. Apparently the faster internet speed would make it possible for travelers on 310 mph bullet trains to get access to their e-mail and preferred social media networks.When wireless reaches that speed in the U.S., well, watch out.Related: Gangnam: The Silicon Valley of South Korea  Growing a business sometimes requires thinking outside the box.center_img Register Now » 2 min readlast_img read more


Why the Race for Tech Advancement Is a Marathon Not a Sprint

August 30, 2019

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first_img 4 min read The path to entrepreneurial success often feels more like a sprint than a steady jog. You race to get your product in front of users and bring on the latest tech options in hopes of leaving your competitors in the dust.In fact, 78 percent of organizations report that achieving digital transformation is high on their priority list for the next two years. But with so much pressure to stay ahead of the pack and adopt the flashiest new tech, you can lose sight of the reason you use tech: to boost efficiency and reduce costs.Rolling out new changes before your team has a chance to adapt can actually frustrate employees, hamper productivity and hurt your bottom line. By introducing new tech too often, you also risk confusing customers, and that will prevent users from establishing a stable relationship with your brand.To reap the rewards of a new tech option, your team has to fully understand it and embrace it. To make each tech investment worthwhile, you need to take a steadier, more sustainable approach to tech advancement in your organization. Here’s how you can get started:1. Tie every change back to your strategy.Don’t simply add new tech for the sake of changing. Every new option should be evaluated against your company’s short-term and long-term goals. If your goal is to boost sales, for example, investing money in new HR tech might not be the best move.Related: 6 Strategies for Managing a Fast Growing Company2. Make small improvements rather than rapid advancements.To avoid abrupt changes that throw your entire team into disarray, test each new technology with a small group of users. You can observe how employees handle the new tech and how it fits in with your overall strategy. And, whenever possible, upgrade your existing tech platforms instead of swapping them out entirely.3. Set up a tech advancement committee.Establish a standing committee for tech changes so you can monitor how technology is affecting your business and your team. An evaluative committee can research new options, predict how they could improve the company and make suggestions for which new systems to adopt.4. Focus on adoption.Your team members are the driving force behind your company. If they aren’t on board with new tech, you won’t see the intended benefits of the change. But adopting new tech is often hard, especially when employees get stuck in their habits. To ease the process, don’t make big changes more often than every six months. That gives employees ample time to adapt. Working closely with your staff is the only way to guarantee they’re on board.Related: 10 Types of People Who Will Help Your Business Succeed5. Communicate each new option clearly.Beyond showing how the tech operates, you also need to explain its potential benefits and risks. Every employee should be able to answer questions such as, “How will this make me better at my job?” and “How will this help us achieve our five-year or 10-year goals?” Devote a monthly team meeting to communicating this information so no one gets left behind.6. Incentivize tech adoption and performance.By focusing your rewards system on tech advancement, you can incentivize your team to seize opportunities provided by the new tech. Reward employees who adapt quickly, and go the extra mile to find new ways to improve their performance with tech. You should consider creating some training courses for the new tech options, and reward good “grades” with bonuses.Of course, you shouldn’t discount tech that could vastly improve productivity for fear of overwhelming your employees. But by replacing needless changes with a steadier rhythm of upgrades and rallying your team around new options, you can gain a competitive advantage and enjoy a new level of efficiency. Slowing down might feel strange at first, but conserving your energy will be a smarter strategy in the long run.Related: 10 Habits You Should Ditch Now to Bring Productivity to an All-Time High April 2, 2015 Opinions expressed by Entrepreneur contributors are their own. This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now Enroll Now for Freelast_img read more